diff options
Diffstat (limited to 'lib/libc/string')
65 files changed, 5523 insertions, 0 deletions
diff --git a/lib/libc/string/Makefile.inc b/lib/libc/string/Makefile.inc new file mode 100644 index 0000000..55db696 --- /dev/null +++ b/lib/libc/string/Makefile.inc @@ -0,0 +1,92 @@ +# @(#)Makefile.inc 8.1 (Berkeley) 6/4/93 + +.PATH: ${.CURDIR}/${MACHINE}/string ${.CURDIR}/string + +# machine-independent string sources +SRCS+= memccpy.c strcasecmp.c strcoll.c strdup.c strerror.c \ + strftime.c strmode.c strtok.c strxfrm.c swab.c + +# machine-dependent string sources +.include "${.CURDIR}/${MACHINE}/string/Makefile.inc" + +# If no machine specific bzero(3), build one out of memset(3). +.if empty(SRCS:Mbzero.s) +OBJS+= bzero.o +bzero.o: memset.c + ${CC} -DBZERO ${CFLAGS} -c ${.ALLSRC} -o ${.TARGET} + @${LD} -x -r ${.TARGET} + @mv a.out ${.TARGET} + +bzero.po: memset.c + ${CC} -DBZERO ${CFLAGS} -c -p ${.ALLSRC} -o ${.TARGET} + @${LD} -X -r ${.TARGET} + @mv a.out ${.TARGET} +.endif + +# If no machine specific memmove(3), build one out of bcopy(3). +.if empty(SRCS:Mmemmove.s) +OBJS+= memmove.o +memmove.o: bcopy.c + ${CC} -DMEMMOVE ${CFLAGS} -c ${.ALLSRC} -o ${.TARGET} + @${LD} -x -r ${.TARGET} + @mv a.out ${.TARGET} + +memmove.po: bcopy.c + ${CC} -DMEMMOVE ${CFLAGS} -c -p ${.ALLSRC} -o ${.TARGET} + @${LD} -X -r ${.TARGET} + @mv a.out ${.TARGET} +.endif + +# If no machine specific memcpy(3), build one out of bcopy(3). +.if empty(SRCS:Mmemcpy.s) +OBJS+= memcpy.o +memcpy.o: bcopy.c + ${CC} -DMEMCOPY ${CFLAGS} -c ${.ALLSRC} -o ${.TARGET} + @${LD} -x -r ${.TARGET} + @mv a.out ${.TARGET} + +memcpy.po: bcopy.c + ${CC} -DMEMCOPY ${CFLAGS} -c -p ${.ALLSRC} -o ${.TARGET} + @${LD} -X -r ${.TARGET} + @mv a.out ${.TARGET} +.endif + +# If no machine specific strchr(3), build one out of index(3). +.if empty(SRCS:Mstrchr.s) +OBJS+= strchr.o +strchr.o: index.c + ${CC} -DSTRCHR ${CFLAGS} -c ${.ALLSRC} -o ${.TARGET} + @${LD} -x -r ${.TARGET} + @mv a.out ${.TARGET} + +strchr.po: index.c + ${CC} -DSTRCHR ${CFLAGS} -c -p ${.ALLSRC} -o ${.TARGET} + @${LD} -X -r ${.TARGET} + @mv a.out ${.TARGET} +.endif + +# If no machine specific strrchr(3), build one out of rindex(3). +.if empty(SRCS:Mstrrchr.s) +OBJS+= strrchr.o +strrchr.o: rindex.c + ${CC} -DSTRRCHR ${CFLAGS} -c ${.ALLSRC} -o ${.TARGET} + @${LD} -x -r ${.TARGET} + @mv a.out ${.TARGET} + +strrchr.po: rindex.c + ${CC} -DSTRRCHR ${CFLAGS} -c -p ${.ALLSRC} -o ${.TARGET} + @${LD} -X -r ${.TARGET} + @mv a.out ${.TARGET} +.endif + +MAN3+= bcmp.0 bcopy.0 bstring.0 bzero.0 ffs.0 index.0 memccpy.0 memchr.0 \ + memcmp.0 memcpy.0 memmove.0 memset.0 rindex.0 strcasecmp.0 strcat.0 \ + strchr.0 strcmp.0 strcoll.0 strcpy.0 strcspn.0 strftime.0 string.0 \ + strlen.0 strmode.0 strdup.0 strerror.0 strpbrk.0 strrchr.0 strsep.0 \ + strspn.0 strstr.0 strtok.0 strxfrm.0 swab.0 + +MLINKS+=strcasecmp.3 strncasecmp.3 +MLINKS+=strcat.3 strncat.3 +MLINKS+=strcmp.3 strncmp.3 +MLINKS+=strcpy.3 strncpy.3 +MLINKS+=strerror.3 perror.3 diff --git a/lib/libc/string/bcmp.3 b/lib/libc/string/bcmp.3 new file mode 100644 index 0000000..5b02740 --- /dev/null +++ b/lib/libc/string/bcmp.3 @@ -0,0 +1,72 @@ +.\" Copyright (c) 1990, 1991, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" This code is derived from software contributed to Berkeley by +.\" Chris Torek. +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. All advertising materials mentioning features or use of this software +.\" must display the following acknowledgement: +.\" This product includes software developed by the University of +.\" California, Berkeley and its contributors. +.\" 4. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" @(#)bcmp.3 8.1 (Berkeley) 6/4/93 +.\" +.Dd June 4, 1993 +.Dt BCMP 3 +.Os BSD 4.2 +.Sh NAME +.Nm bcmp +.Nd compare byte string +.Sh SYNOPSIS +.Fd #include <string.h> +.Ft int +.Fn bcmp "const void *b1" "const void *b2" "size_t len" +.Sh DESCRIPTION +The +.Fn bcmp +function +compares byte string +.Fa b1 +against byte string +.Fa b2 , +returning zero if they are identical, non-zero otherwise. +Both strings are assumed to be +.Fa len +bytes long. +Zero-length strings are always identical. +.Pp +The strings may overlap. +.Sh SEE ALSO +.Xr bcmp 3 , +.Xr memcmp 3 , +.Xr strcasecmp 3 , +.Xr strcmp 3 , +.Xr strcoll 3 , +.Xr strxfrm 3 +.Sh HISTORY +A +.Fn bcmp +function first appeared in +.Bx 4.2 . diff --git a/lib/libc/string/bcmp.c b/lib/libc/string/bcmp.c new file mode 100644 index 0000000..5a3ae61 --- /dev/null +++ b/lib/libc/string/bcmp.c @@ -0,0 +1,59 @@ +/* + * Copyright (c) 1987, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#if defined(LIBC_SCCS) && !defined(lint) +static char sccsid[] = "@(#)bcmp.c 8.1 (Berkeley) 6/4/93"; +#endif /* LIBC_SCCS and not lint */ + +#include <string.h> + +/* + * bcmp -- vax cmpc3 instruction + */ +int +bcmp(b1, b2, length) + const void *b1, *b2; + register size_t length; +{ + register char *p1, *p2; + + if (length == 0) + return(0); + p1 = (char *)b1; + p2 = (char *)b2; + do + if (*p1++ != *p2++) + break; + while (--length); + return(length); +} diff --git a/lib/libc/string/bcopy.3 b/lib/libc/string/bcopy.3 new file mode 100644 index 0000000..7f6a14c --- /dev/null +++ b/lib/libc/string/bcopy.3 @@ -0,0 +1,71 @@ +.\" Copyright (c) 1990, 1991, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" This code is derived from software contributed to Berkeley by +.\" Chris Torek. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. All advertising materials mentioning features or use of this software +.\" must display the following acknowledgement: +.\" This product includes software developed by the University of +.\" California, Berkeley and its contributors. +.\" 4. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" @(#)bcopy.3 8.1 (Berkeley) 6/4/93 +.\" +.Dd June 4, 1993 +.Dt BCOPY 3 +.Os BSD 4.2 +.Sh NAME +.Nm bcopy +.Nd copy byte string +.Sh SYNOPSIS +.Fd #include <string.h> +.Ft void +.Fn bcopy "const void *src" "void *dst" "size_t len" +.Sh DESCRIPTION +The +.Fn bcopy +function +copies +.Fa len +bytes from string +.Fa src +to string +.Fa dst . +The two strings may overlap. +If +.Fa len +is zero, no bytes are copied. +.Sh SEE ALSO +.Xr memccpy 3 , +.Xr memcpy 3 , +.Xr memmove 3 , +.Xr strcpy 3 , +.Xr strncpy 3 +.Sh HISTORY +A +.Fn bcopy +function appeared in +.Bx 4.2 . diff --git a/lib/libc/string/bcopy.c b/lib/libc/string/bcopy.c new file mode 100644 index 0000000..f90b09c --- /dev/null +++ b/lib/libc/string/bcopy.c @@ -0,0 +1,139 @@ +/*- + * Copyright (c) 1990, 1993 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Chris Torek. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#if defined(LIBC_SCCS) && !defined(lint) +static char sccsid[] = "@(#)bcopy.c 8.1 (Berkeley) 6/4/93"; +#endif /* LIBC_SCCS and not lint */ + +#include <sys/cdefs.h> +#include <string.h> + +/* + * sizeof(word) MUST BE A POWER OF TWO + * SO THAT wmask BELOW IS ALL ONES + */ +typedef int word; /* "word" used for optimal copy speed */ + +#define wsize sizeof(word) +#define wmask (wsize - 1) + +/* + * Copy a block of memory, handling overlap. + * This is the routine that actually implements + * (the portable versions of) bcopy, memcpy, and memmove. + */ +#ifdef MEMCOPY +void * +memcpy(dst0, src0, length) +#else +#ifdef MEMMOVE +void * +memmove(dst0, src0, length) +#else +void +bcopy(src0, dst0, length) +#endif +#endif + void *dst0; + const void *src0; + register size_t length; +{ + register char *dst = dst0; + register const char *src = src0; + register size_t t; + + if (length == 0 || dst == src) /* nothing to do */ + goto done; + + /* + * Macros: loop-t-times; and loop-t-times, t>0 + */ +#define TLOOP(s) if (t) TLOOP1(s) +#define TLOOP1(s) do { s; } while (--t) + + if ((unsigned long)dst < (unsigned long)src) { + /* + * Copy forward. + */ + t = (int)src; /* only need low bits */ + if ((t | (int)dst) & wmask) { + /* + * Try to align operands. This cannot be done + * unless the low bits match. + */ + if ((t ^ (int)dst) & wmask || length < wsize) + t = length; + else + t = wsize - (t & wmask); + length -= t; + TLOOP1(*dst++ = *src++); + } + /* + * Copy whole words, then mop up any trailing bytes. + */ + t = length / wsize; + TLOOP(*(word *)dst = *(word *)src; src += wsize; dst += wsize); + t = length & wmask; + TLOOP(*dst++ = *src++); + } else { + /* + * Copy backwards. Otherwise essentially the same. + * Alignment works as before, except that it takes + * (t&wmask) bytes to align, not wsize-(t&wmask). + */ + src += length; + dst += length; + t = (int)src; + if ((t | (int)dst) & wmask) { + if ((t ^ (int)dst) & wmask || length <= wsize) + t = length; + else + t &= wmask; + length -= t; + TLOOP1(*--dst = *--src); + } + t = length / wsize; + TLOOP(src -= wsize; dst -= wsize; *(word *)dst = *(word *)src); + t = length & wmask; + TLOOP(*--dst = *--src); + } +done: +#if defined(MEMCOPY) || defined(MEMMOVE) + return (dst0); +#else + return; +#endif +} diff --git a/lib/libc/string/bstring.3 b/lib/libc/string/bstring.3 new file mode 100644 index 0000000..10d91a2 --- /dev/null +++ b/lib/libc/string/bstring.3 @@ -0,0 +1,109 @@ +.\" Copyright (c) 1990, 1991, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" This code is derived from software contributed to Berkeley by +.\" Chris Torek. +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. All advertising materials mentioning features or use of this software +.\" must display the following acknowledgement: +.\" This product includes software developed by the University of +.\" California, Berkeley and its contributors. +.\" 4. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" @(#)bstring.3 8.1 (Berkeley) 6/4/93 +.\" +.Dd June 4, 1993 +.Dt BSTRING 3 +.Os +.Sh NAME +.Nm bcmp , +.Nm bcopy , +.Nm bzero , +.Nm memccpy , +.Nm memchr , +.Nm memcmp , +.Nm memcpy , +.Nm memmove, +.Nm memset +.Nd byte string operations +.Sh SYNOPSIS +.Fd #include <string.h> +.Ft int +.Fn bcmp "const void *b1" "const void *b2" "size_t len" +.Ft void +.Fn bcopy "const void *src" "void *dst" "size_t len" +.Ft void +.Fn bzero "void *b" "size_t len" +.Ft void * +.Fn memchr "const void *b" "int c" "size_t len" +.Ft int +.Fn memcmp "const void *b1" "const void *b2" "size_t len" +.Ft void * +.Fn memccpy "void *dst" "const void *src" "int c" "size_t len" +.Ft void * +.Fn memcpy "void *dst" "const void *src" "size_t len" +.Ft void * +.Fn memmove "void *dst" "const void *src" "size_t len" +.Ft void * +.Fn memset "void *b" "int c" "size_t len" +.Sh DESCRIPTION +These functions operate on variable length strings of bytes. +They do not check for terminating null bytes as the routines +listed in +.Xr string 3 +do. +.Pp +See the specific manual pages for more information. +.Sh SEE ALSO +.Xr bcmp 3 , +.Xr bcopy 3 , +.Xr bzero 3 , +.Xr memccpy 3 , +.Xr memchr 3 , +.Xr memcmp 3 , +.Xr memcpy 3 , +.Xr memmove 3 , +.Xr memset 3 +.Sh STANDARDS +The functions +.Fn memchr , +.Fn memcmp , +.Fn memcpy , +.Fn memmove , +and +.Fn memset +conform to +.St -ansiC . +.Sh HISTORY +The functions +.Fn bzero +and +.Fn memccpy +appeared in +.Bx 4.3 ; +the functions +.Fn bcmp , +.Fn bcopy , +appeared in +.Bx 4.2 . diff --git a/lib/libc/string/bzero.3 b/lib/libc/string/bzero.3 new file mode 100644 index 0000000..46a20ab --- /dev/null +++ b/lib/libc/string/bzero.3 @@ -0,0 +1,68 @@ +.\" Copyright (c) 1990, 1991, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" This code is derived from software contributed to Berkeley by +.\" Chris Torek. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. All advertising materials mentioning features or use of this software +.\" must display the following acknowledgement: +.\" This product includes software developed by the University of +.\" California, Berkeley and its contributors. +.\" 4. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" @(#)bzero.3 8.1 (Berkeley) 6/4/93 +.\" +.Dd June 4, 1993 +.Dt BZERO 3 +.Os BSD 4.3 +.Sh NAME +.Nm bzero +.Nd write zeroes to a byte string +.Sh SYNOPSIS +.Fd #include <string.h> +.Ft void +.Fn bzero "void *b" "size_t len" +.Sh DESCRIPTION +The +.Fn bzero +function +writes +.Fa len +zero bytes to the string +.Fa b . +If +.Fa len +is zero, +.Fn bzero +does nothing. +.Sh SEE ALSO +.Xr memset 3 , +.Xr swab 3 +.Sh HISTORY +A +.Fn bzero +function +appeared in +.Bx 4.3 . diff --git a/lib/libc/string/ffs.3 b/lib/libc/string/ffs.3 new file mode 100644 index 0000000..451b7b9 --- /dev/null +++ b/lib/libc/string/ffs.3 @@ -0,0 +1,61 @@ +.\" Copyright (c) 1990, 1991, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" This code is derived from software contributed to Berkeley by +.\" Chris Torek. +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. All advertising materials mentioning features or use of this software +.\" must display the following acknowledgement: +.\" This product includes software developed by the University of +.\" California, Berkeley and its contributors. +.\" 4. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" @(#)ffs.3 8.2 (Berkeley) 4/19/94 +.\" +.Dd April 19, 1994 +.Dt FFS 3 +.Os +.Sh NAME +.Nm ffs +.Nd find first bit set in a bit string +.Sh SYNOPSIS +.Fd #include <string.h> +.Ft int +.Fn ffs "int value" +.Sh DESCRIPTION +The +.Fn ffs +function finds the first bit set in +.Fa value +and returns the index of that bit. +Bits are numbered starting from 1, starting at the right-most +bit. +A return value of 0 means that the argument was zero. +.Sh SEE ALSO +.Xr bitstring 3 +.Sh HISTORY +The +.Fn ffs +function appeared in +.Bx 4.3 . diff --git a/lib/libc/string/ffs.c b/lib/libc/string/ffs.c new file mode 100644 index 0000000..099ff8e --- /dev/null +++ b/lib/libc/string/ffs.c @@ -0,0 +1,54 @@ +/*- + * Copyright (c) 1990, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#if defined(LIBC_SCCS) && !defined(lint) +static char sccsid[] = "@(#)ffs.c 8.1 (Berkeley) 6/4/93"; +#endif /* LIBC_SCCS and not lint */ + +#include <string.h> + +/* + * ffs -- vax ffs instruction + */ +int +ffs(mask) + register int mask; +{ + register int bit; + + if (mask == 0) + return(0); + for (bit = 1; !(mask & 1); bit++) + mask >>= 1; + return(bit); +} diff --git a/lib/libc/string/index.3 b/lib/libc/string/index.3 new file mode 100644 index 0000000..eb49c8f --- /dev/null +++ b/lib/libc/string/index.3 @@ -0,0 +1,80 @@ +.\" Copyright (c) 1990, 1991, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" This code is derived from software contributed to Berkeley by +.\" Chris Torek. +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. All advertising materials mentioning features or use of this software +.\" must display the following acknowledgement: +.\" This product includes software developed by the University of +.\" California, Berkeley and its contributors. +.\" 4. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" @(#)index.3 8.1 (Berkeley) 6/4/93 +.\" +.Dd June 4, 1993 +.Dt INDEX 3 +.Os +.Sh NAME +.Nm index +.Nd locate character in string +.Sh SYNOPSIS +.Fd #include <string.h> +.Ft char * +.Fn index "const char *s" "int c" +.Sh DESCRIPTION +The +.Fn index +function +locates the first character matching +.Fa c +(converted to a +.Em char ) +in the null-terminated string +.Fa s . +.Sh RETURN VALUES +A pointer to the character is returned if it is found; otherwise +.Dv NULL +is returned. +If +.Fa c +is '\e0', +.Fn index +locates the terminating '\e0'. +.Sh SEE ALSO +.Xr memchr 3 , +.Xr rindex 3 , +.Xr strchr 3 , +.Xr strcspn 3 , +.Xr strpbrk 3 , +.Xr strrchr 3 , +.Xr strsep 3 , +.Xr strspn 3 , +.Xr strstr 3 , +.Xr strtok 3 +.Sh HISTORY +A +.Fn index +function appeared in +.At v6 . diff --git a/lib/libc/string/index.c b/lib/libc/string/index.c new file mode 100644 index 0000000..37e505f --- /dev/null +++ b/lib/libc/string/index.c @@ -0,0 +1,57 @@ +/*- + * Copyright (c) 1990, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#if defined(LIBC_SCCS) && !defined(lint) +static char sccsid[] = "@(#)index.c 8.1 (Berkeley) 6/4/93"; +#endif /* LIBC_SCCS and not lint */ + +#include <sys/cdefs.h> +#include <string.h> +#include <stddef.h> + +char * +#ifdef STRCHR +strchr(p, ch) +#else +index(p, ch) +#endif + register const char *p, ch; +{ + for (;; ++p) { + if (*p == ch) + return((char *)p); + if (!*p) + return((char *)NULL); + } + /* NOTREACHED */ +} diff --git a/lib/libc/string/memccpy.3 b/lib/libc/string/memccpy.3 new file mode 100644 index 0000000..28d6441 --- /dev/null +++ b/lib/libc/string/memccpy.3 @@ -0,0 +1,72 @@ +.\" Copyright (c) 1990, 1991, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. All advertising materials mentioning features or use of this software +.\" must display the following acknowledgement: +.\" This product includes software developed by the University of +.\" California, Berkeley and its contributors. +.\" 4. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" @(#)memccpy.3 8.1 (Berkeley) 6/9/93 +.\" +.Dd June 9, 1993 +.Dt MEMCCPY 3 +.Os +.Sh NAME +.Nm memccpy +.Nd copy string until character found +.Sh SYNOPSIS +.Fd #include <string.h> +.Ft void * +.Fn memccpy "void *dst" "const void *src" "int c" "size_t len" +.Sh DESCRIPTION +The +.Fn memccpy +function +copies bytes from string +.Fa src +to string +.Fa dst . +If the character +.Fa c +(as converted to an unsigned char) occurs in the string +.Fa src , +the copy stops and a pointer to the byte after the copy of +.Fa c +in the string +.Fa dst +is returned. +Otherwise, +.Fa len +bytes are copied, and a NULL pointer is returned. +.Sh SEE ALSO +.Xr bcopy 3 , +.Xr memcpy 3 , +.Xr memmove 3 , +.Xr strcpy 3 +.Sh HISTORY +The +.Fn memccpy +function first appeared in 4.4BSD. diff --git a/lib/libc/string/memccpy.c b/lib/libc/string/memccpy.c new file mode 100644 index 0000000..878e419 --- /dev/null +++ b/lib/libc/string/memccpy.c @@ -0,0 +1,58 @@ +/*- + * Copyright (c) 1990, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#if defined(LIBC_SCCS) && !defined(lint) +static char sccsid[] = "@(#)memccpy.c 8.1 (Berkeley) 6/4/93"; +#endif /* LIBC_SCCS and not lint */ + +#include <sys/cdefs.h> +#include <string.h> + +void * +memccpy(t, f, c, n) + void *t; + const void *f; + int c; + register size_t n; +{ + + if (n) { + register unsigned char *tp = t; + register const unsigned char *fp = f; + do { + if ((*tp++ = *fp++) == c) + return (t); + } while (--n != 0); + } + return (0); +} diff --git a/lib/libc/string/memchr.3 b/lib/libc/string/memchr.3 new file mode 100644 index 0000000..c94b086 --- /dev/null +++ b/lib/libc/string/memchr.3 @@ -0,0 +1,81 @@ +.\" Copyright (c) 1990, 1991, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" This code is derived from software contributed to Berkeley by +.\" Chris Torek and the American National Standards Committee X3, +.\" on Information Processing Systems. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. All advertising materials mentioning features or use of this software +.\" must display the following acknowledgement: +.\" This product includes software developed by the University of +.\" California, Berkeley and its contributors. +.\" 4. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" @(#)memchr.3 8.1 (Berkeley) 6/4/93 +.\" +.Dd June 4, 1993 +.Dt MEMCHR 3 +.Os +.Sh NAME +.Nm memchr +.Nd locate byte in byte string +.Sh SYNOPSIS +.Fd #include <string.h> +.Ft void * +.Fn memchr "const void *b" "int c" "size_t len" +.Sh DESCRIPTION +The +.Fn memchr +function +locates the first occurrence of +.Fa c +(converted to an unsigned char) +in string +.Fa b . +.Sh RETURN VALUES +The +.Fn memchr +function +returns a pointer to the byte located, +or NULL if no such byte exists within +.Fa len +bytes. +.Sh SEE ALSO +.Xr index 3 , +.Xr rindex 3 , +.Xr strchr 3 , +.Xr strcspn 3 , +.Xr strpbrk 3 , +.Xr strrchr 3 , +.Xr strsep 3 , +.Xr strspn 3 , +.Xr strstr 3 , +.Xr strtok 3 +.Sh STANDARDS +The +.Fn memchr +function +conforms to +.St -ansiC . diff --git a/lib/libc/string/memchr.c b/lib/libc/string/memchr.c new file mode 100644 index 0000000..7200894 --- /dev/null +++ b/lib/libc/string/memchr.c @@ -0,0 +1,59 @@ +/*- + * Copyright (c) 1990, 1993 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Chris Torek. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#if defined(LIBC_SCCS) && !defined(lint) +static char sccsid[] = "@(#)memchr.c 8.1 (Berkeley) 6/4/93"; +#endif /* LIBC_SCCS and not lint */ + +#include <sys/cdefs.h> +#include <string.h> + +void * +memchr(s, c, n) + const void *s; + register unsigned char c; + register size_t n; +{ + if (n != 0) { + register const unsigned char *p = s; + + do { + if (*p++ == c) + return ((void *)(p - 1)); + } while (--n != 0); + } + return (NULL); +} diff --git a/lib/libc/string/memcmp.3 b/lib/libc/string/memcmp.3 new file mode 100644 index 0000000..a859529 --- /dev/null +++ b/lib/libc/string/memcmp.3 @@ -0,0 +1,82 @@ +.\" Copyright (c) 1990, 1991, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" This code is derived from software contributed to Berkeley by +.\" Chris Torek and the American National Standards Committee X3, +.\" on Information Processing Systems. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. All advertising materials mentioning features or use of this software +.\" must display the following acknowledgement: +.\" This product includes software developed by the University of +.\" California, Berkeley and its contributors. +.\" 4. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" @(#)memcmp.3 8.1 (Berkeley) 6/4/93 +.\" +.Dd June 4, 1993 +.Dt MEMCMP 3 +.Os +.Sh NAME +.Nm memcmp +.Nd compare byte string +.Sh SYNOPSIS +.Fd #include <string.h> +.Ft int +.Fn memcmp "const void *b1" "const void *b2" "size_t len" +.Sh DESCRIPTION +The +.Fn memcmp +function +compares byte string +.Fa b1 +against byte string +.Fa b2 . +Both strings are assumed to be +.Fa len +bytes long. +.Sh RETURN VALUES +The +.Fn memcmp +function +returns zero if the the two strings are identical, +otherwise returns the difference between the first two differing bytes +(treated as unsigned char values, so that +.Sq Li \e200 +is greater than +.Sq Li \&\e0 , +for example). +Zero-length strings are always identical. +.Sh SEE ALSO +.Xr bcmp 3 , +.Xr strcasecmp 3 , +.Xr strcmp 3 , +.Xr strcoll 3 , +.Xr strxfrm 3 +.Sh STANDARDS +The +.Fn memcmp +function +conforms to +.St -ansiC . diff --git a/lib/libc/string/memcmp.c b/lib/libc/string/memcmp.c new file mode 100644 index 0000000..d025d89 --- /dev/null +++ b/lib/libc/string/memcmp.c @@ -0,0 +1,61 @@ +/*- + * Copyright (c) 1990, 1993 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Chris Torek. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#if defined(LIBC_SCCS) && !defined(lint) +static char sccsid[] = "@(#)memcmp.c 8.1 (Berkeley) 6/4/93"; +#endif /* LIBC_SCCS and not lint */ + +#include <sys/cdefs.h> +#include <string.h> + +/* + * Compare memory regions. + */ +int +memcmp(s1, s2, n) + const void *s1, *s2; + size_t n; +{ + if (n != 0) { + register const unsigned char *p1 = s1, *p2 = s2; + + do { + if (*p1++ != *p2++) + return (*--p1 - *--p2); + } while (--n != 0); + } + return (0); +} diff --git a/lib/libc/string/memcpy.3 b/lib/libc/string/memcpy.3 new file mode 100644 index 0000000..61b6768 --- /dev/null +++ b/lib/libc/string/memcpy.3 @@ -0,0 +1,83 @@ +.\" Copyright (c) 1990, 1991, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" This code is derived from software contributed to Berkeley by +.\" Chris Torek and the American National Standards Committee X3, +.\" on Information Processing Systems. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. All advertising materials mentioning features or use of this software +.\" must display the following acknowledgement: +.\" This product includes software developed by the University of +.\" California, Berkeley and its contributors. +.\" 4. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" @(#)memcpy.3 8.1 (Berkeley) 6/4/93 +.\" +.Dd June 4, 1993 +.Dt MEMCPY 3 +.Os +.Sh NAME +.Nm memcpy +.Nd copy byte string +.Sh SYNOPSIS +.Fd #include <string.h> +.Ft void * +.Fn memcpy "void *dst" "const void *src" "size_t len" +.Sh DESCRIPTION +The +.Fn memcpy +function +copies +.Fa len +bytes from string +.Fa src +to string +.Fa dst . +.Sh RETURN VALUES +The +.Fn memcpy +function +returns the original value of +.Fa dst . +.Sh SEE ALSO +.Xr bcopy 3 , +.Xr memccpy 3 , +.Xr memmove 3 , +.Xr strcpy 3 +.Sh STANDARDS +The +.Fn memcpy +function +conforms to +.St -ansiC . +.Sh BUGS +In this implementation +.Fn memcpy +is implemented using +.Xr bcopy 3 , +and therefore the strings may overlap. +On other systems, copying overlapping strings may produce surprises. +A simpler solution is to not use +.Fn memcpy . diff --git a/lib/libc/string/memmove.3 b/lib/libc/string/memmove.3 new file mode 100644 index 0000000..54c2b9b --- /dev/null +++ b/lib/libc/string/memmove.3 @@ -0,0 +1,75 @@ +.\" Copyright (c) 1990, 1991, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" This code is derived from software contributed to Berkeley by +.\" Chris Torek and the American National Standards Committee X3, +.\" on Information Processing Systems. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. All advertising materials mentioning features or use of this software +.\" must display the following acknowledgement: +.\" This product includes software developed by the University of +.\" California, Berkeley and its contributors. +.\" 4. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" @(#)memmove.3 8.1 (Berkeley) 6/4/93 +.\" +.Dd June 4, 1993 +.Dt MEMMOVE 3 +.Os +.Sh NAME +.Nm memmove +.Nd copy byte string +.Sh SYNOPSIS +.Fd #include <string.h> +.Ft void * +.Fn memmove "void *dst" "const void *src" "size_t len" +.Sh DESCRIPTION +The +.Fn memmove +function +copies +.Fa len +bytes from string +.Fa src +to string +.Fa dst . +The two strings may overlap; +the copy is always done in a non-destructive manner. +.Sh RETURN VALUES +The +.Fn memmove +function returns the original value of +.Fa dst . +.Sh SEE ALSO +.Xr bcopy 3 , +.Xr memccpy 3 , +.Xr memcpy 3 , +.Xr strcpy 3 +.Sh STANDARDS +The +.Fn memmove +function +conforms to +.St -ansiC . diff --git a/lib/libc/string/memset.3 b/lib/libc/string/memset.3 new file mode 100644 index 0000000..98e6d5f --- /dev/null +++ b/lib/libc/string/memset.3 @@ -0,0 +1,70 @@ +.\" Copyright (c) 1990, 1991, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" This code is derived from software contributed to Berkeley by +.\" Chris Torek and the American National Standards Committee X3, +.\" on Information Processing Systems. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. All advertising materials mentioning features or use of this software +.\" must display the following acknowledgement: +.\" This product includes software developed by the University of +.\" California, Berkeley and its contributors. +.\" 4. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" @(#)memset.3 8.1 (Berkeley) 6/4/93 +.\" +.Dd June 4, 1993 +.Dt MEMSET 3 +.Os +.Sh NAME +.Nm memset +.Nd write a byte to byte string +.Sh SYNOPSIS +.Fd #include <string.h> +.Ft void * +.Fn memset "void *b" "int c" "size_t len" +.Sh DESCRIPTION +The +.Fn memset +function +writes +.Fa len +bytes of value +.Fa c +(converted to an unsigned char) to the string +.Fa b . +.Sh RETURNS +The +.Fn memset +function returns its first argument. +.Sh SEE ALSO +.Xr bzero 3 , +.Xr swab 3 +.Sh STANDARDS +The +.Fn memset +function +conforms to +.St -ansiC . diff --git a/lib/libc/string/memset.c b/lib/libc/string/memset.c new file mode 100644 index 0000000..9c28b7b --- /dev/null +++ b/lib/libc/string/memset.c @@ -0,0 +1,130 @@ +/*- + * Copyright (c) 1990, 1993 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Mike Hibler and Chris Torek. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#if defined(LIBC_SCCS) && !defined(lint) +static char sccsid[] = "@(#)memset.c 8.1 (Berkeley) 6/4/93"; +#endif /* LIBC_SCCS and not lint */ + +#include <sys/types.h> + +#include <limits.h> +#include <string.h> + +#define wsize sizeof(u_int) +#define wmask (wsize - 1) + +#ifdef BZERO +#define RETURN return +#define VAL 0 +#define WIDEVAL 0 + +void +bzero(dst0, length) + void *dst0; + register size_t length; +#else +#define RETURN return (dst0) +#define VAL c0 +#define WIDEVAL c + +void * +memset(dst0, c0, length) + void *dst0; + register int c0; + register size_t length; +#endif +{ + register size_t t; + register u_int c; + register u_char *dst; + + dst = dst0; + /* + * If not enough words, just fill bytes. A length >= 2 words + * guarantees that at least one of them is `complete' after + * any necessary alignment. For instance: + * + * |-----------|-----------|-----------| + * |00|01|02|03|04|05|06|07|08|09|0A|00| + * ^---------------------^ + * dst dst+length-1 + * + * but we use a minimum of 3 here since the overhead of the code + * to do word writes is substantial. + */ + if (length < 3 * wsize) { + while (length != 0) { + *dst++ = VAL; + --length; + } + RETURN; + } + +#ifndef BZERO + if ((c = (u_char)c0) != 0) { /* Fill the word. */ + c = (c << 8) | c; /* u_int is 16 bits. */ +#if UINT_MAX > 0xffff + c = (c << 16) | c; /* u_int is 32 bits. */ +#endif +#if UINT_MAX > 0xffffffff + c = (c << 32) | c; /* u_int is 64 bits. */ +#endif + } +#endif + /* Align destination by filling in bytes. */ + if ((t = (int)dst & wmask) != 0) { + t = wsize - t; + length -= t; + do { + *dst++ = VAL; + } while (--t != 0); + } + + /* Fill words. Length was >= 2*words so we know t >= 1 here. */ + t = length / wsize; + do { + *(u_int *)dst = WIDEVAL; + dst += wsize; + } while (--t != 0); + + /* Mop up trailing bytes, if any. */ + t = length & wmask; + if (t != 0) + do { + *dst++ = VAL; + } while (--t != 0); + RETURN; +} diff --git a/lib/libc/string/rindex.3 b/lib/libc/string/rindex.3 new file mode 100644 index 0000000..78d3294 --- /dev/null +++ b/lib/libc/string/rindex.3 @@ -0,0 +1,82 @@ +.\" Copyright (c) 1990, 1991, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" This code is derived from software contributed to Berkeley by +.\" Chris Torek. +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. All advertising materials mentioning features or use of this software +.\" must display the following acknowledgement: +.\" This product includes software developed by the University of +.\" California, Berkeley and its contributors. +.\" 4. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" @(#)rindex.3 8.1 (Berkeley) 6/4/93 +.\" +.Dd June 4, 1993 +.Dt RINDEX 3 +.Os +.Sh NAME +.Nm rindex +.Nd locate character in string +.Sh SYNOPSIS +.Fd #include <string.h> +.Ft char * +.Fn rindex "const char *s" "int c" +.Sh DESCRIPTION +The +.Fn rindex +function +locates the last character +matching +.Fa c +(converted to a +.Em char ) +in the null-terminated string +.Fa s . +.Sh RETURN VALUES +A pointer to the character is returned if it is found; otherwise +NULL is returned. +If +.Fa c +is +.Ql \e0 , +.Fn rindex +locates the terminating +.Ql \e0 . +.Sh SEE ALSO +.Xr index 3 , +.Xr memchr 3 , +.Xr strchr 3 , +.Xr strcspn 3 , +.Xr strpbrk 3 , +.Xr strrchr 3 , +.Xr strsep 3 , +.Xr strspn 3 , +.Xr strstr 3 , +.Xr strtok 3 +.Sh HISTORY +A +.Fn rindex +function appeared in +.At v6 . diff --git a/lib/libc/string/rindex.c b/lib/libc/string/rindex.c new file mode 100644 index 0000000..69dced4 --- /dev/null +++ b/lib/libc/string/rindex.c @@ -0,0 +1,59 @@ +/* + * Copyright (c) 1988, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#if defined(LIBC_SCCS) && !defined(lint) +static char sccsid[] = "@(#)rindex.c 8.1 (Berkeley) 6/4/93"; +#endif /* LIBC_SCCS and not lint */ + +#include <stddef.h> +#include <string.h> + +char * +#ifdef STRRCHR +strrchr(p, ch) +#else +rindex(p, ch) +#endif + register const char *p; + register int ch; +{ + register char *save; + + for (save = NULL;; ++p) { + if (*p == ch) + save = (char *)p; + if (!*p) + return(save); + } + /* NOTREACHED */ +} diff --git a/lib/libc/string/strcasecmp.3 b/lib/libc/string/strcasecmp.3 new file mode 100644 index 0000000..f9d27ff --- /dev/null +++ b/lib/libc/string/strcasecmp.3 @@ -0,0 +1,86 @@ +.\" Copyright (c) 1990, 1991, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" This code is derived from software contributed to Berkeley by +.\" Chris Torek. +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. All advertising materials mentioning features or use of this software +.\" must display the following acknowledgement: +.\" This product includes software developed by the University of +.\" California, Berkeley and its contributors. +.\" 4. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" @(#)strcasecmp.3 8.1 (Berkeley) 6/9/93 +.\" +.Dd June 9, 1993 +.Dt STRCASECMP 3 +.Os +.Sh NAME +.Nm strcasecmp +.Nd compare strings, ignoring case +.Sh SYNOPSIS +.Fd #include <string.h> +.Ft int +.Fn strcasecmp "const char *s1" "const char *s2" +.Ft int +.Fn strncasecmp "const char *s1" "const char *s2" "size_t len" +.Sh DESCRIPTION +The +.Fn strcasecmp +and +.Fn strncasecmp +functions +compare the null-terminated strings +.Fa s1 +and +.Fa s2 +and return an integer greater than, equal to, or less than 0, +according as +.Fa s1 +is lexicographically greater than, equal to, or less than +.Fa s2 +after translation of each corresponding character to lower-case. +The strings themselves are not modified. +The comparison is done using unsigned characters, so that +.Sq Li \e200 +is greater than +.Ql \e0 . +.Pp +The +.Fn strncasecmp +compares at most +.Fa len +characters. +.Sh SEE ALSO +.Xr bcmp 3 , +.Xr memcmp 3 , +.Xr strcmp 3 , +.Xr strcoll 3 , +.Xr strxfrm 3 +.Sh HISTORY +The +.Fn strcasecmp +and +.Fn strncasecmp +functions first appeared in 4.4BSD. diff --git a/lib/libc/string/strcasecmp.c b/lib/libc/string/strcasecmp.c new file mode 100644 index 0000000..f31c297 --- /dev/null +++ b/lib/libc/string/strcasecmp.c @@ -0,0 +1,115 @@ +/* + * Copyright (c) 1987, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <sys/cdefs.h> +#include <string.h> + +#if defined(LIBC_SCCS) && !defined(lint) +static char sccsid[] = "@(#)strcasecmp.c 8.1 (Berkeley) 6/4/93"; +#endif /* LIBC_SCCS and not lint */ + +typedef unsigned char u_char; + +/* + * This array is designed for mapping upper and lower case letter + * together for a case independent comparison. The mappings are + * based upon ascii character sequences. + */ +static const u_char charmap[] = { + '\000', '\001', '\002', '\003', '\004', '\005', '\006', '\007', + '\010', '\011', '\012', '\013', '\014', '\015', '\016', '\017', + '\020', '\021', '\022', '\023', '\024', '\025', '\026', '\027', + '\030', '\031', '\032', '\033', '\034', '\035', '\036', '\037', + '\040', '\041', '\042', '\043', '\044', '\045', '\046', '\047', + '\050', '\051', '\052', '\053', '\054', '\055', '\056', '\057', + '\060', '\061', '\062', '\063', '\064', '\065', '\066', '\067', + '\070', '\071', '\072', '\073', '\074', '\075', '\076', '\077', + '\100', '\141', '\142', '\143', '\144', '\145', '\146', '\147', + '\150', '\151', '\152', '\153', '\154', '\155', '\156', '\157', + '\160', '\161', '\162', '\163', '\164', '\165', '\166', '\167', + '\170', '\171', '\172', '\133', '\134', '\135', '\136', '\137', + '\140', '\141', '\142', '\143', '\144', '\145', '\146', '\147', + '\150', '\151', '\152', '\153', '\154', '\155', '\156', '\157', + '\160', '\161', '\162', '\163', '\164', '\165', '\166', '\167', + '\170', '\171', '\172', '\173', '\174', '\175', '\176', '\177', + '\200', '\201', '\202', '\203', '\204', '\205', '\206', '\207', + '\210', '\211', '\212', '\213', '\214', '\215', '\216', '\217', + '\220', '\221', '\222', '\223', '\224', '\225', '\226', '\227', + '\230', '\231', '\232', '\233', '\234', '\235', '\236', '\237', + '\240', '\241', '\242', '\243', '\244', '\245', '\246', '\247', + '\250', '\251', '\252', '\253', '\254', '\255', '\256', '\257', + '\260', '\261', '\262', '\263', '\264', '\265', '\266', '\267', + '\270', '\271', '\272', '\273', '\274', '\275', '\276', '\277', + '\300', '\301', '\302', '\303', '\304', '\305', '\306', '\307', + '\310', '\311', '\312', '\313', '\314', '\315', '\316', '\317', + '\320', '\321', '\322', '\323', '\324', '\325', '\326', '\327', + '\330', '\331', '\332', '\333', '\334', '\335', '\336', '\337', + '\340', '\341', '\342', '\343', '\344', '\345', '\346', '\347', + '\350', '\351', '\352', '\353', '\354', '\355', '\356', '\357', + '\360', '\361', '\362', '\363', '\364', '\365', '\366', '\367', + '\370', '\371', '\372', '\373', '\374', '\375', '\376', '\377', +}; + +int +strcasecmp(s1, s2) + const char *s1, *s2; +{ + register const u_char *cm = charmap, + *us1 = (const u_char *)s1, + *us2 = (const u_char *)s2; + + while (cm[*us1] == cm[*us2++]) + if (*us1++ == '\0') + return (0); + return (cm[*us1] - cm[*--us2]); +} + +int +strncasecmp(s1, s2, n) + const char *s1, *s2; + register size_t n; +{ + if (n != 0) { + register const u_char *cm = charmap, + *us1 = (const u_char *)s1, + *us2 = (const u_char *)s2; + + do { + if (cm[*us1] != cm[*us2++]) + return (cm[*us1] - cm[*--us2]); + if (*us1++ == '\0') + break; + } while (--n != 0); + } + return (0); +} diff --git a/lib/libc/string/strcat.3 b/lib/libc/string/strcat.3 new file mode 100644 index 0000000..6fe13aa --- /dev/null +++ b/lib/libc/string/strcat.3 @@ -0,0 +1,93 @@ +.\" Copyright (c) 1990, 1991, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" This code is derived from software contributed to Berkeley by +.\" Chris Torek and the American National Standards Committee X3, +.\" on Information Processing Systems. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. All advertising materials mentioning features or use of this software +.\" must display the following acknowledgement: +.\" This product includes software developed by the University of +.\" California, Berkeley and its contributors. +.\" 4. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" @(#)strcat.3 8.1 (Berkeley) 6/4/93 +.\" +.Dd June 4, 1993 +.Dt STRCAT 3 +.Os +.Sh NAME +.Nm strcat +.Nd concatenate strings +.Sh SYNOPSIS +.Fd #include <string.h> +.Ft char * +.Fn strcat "char *s" "const char *append" +.Ft char * +.Fn strncat "char *s" "const char *append" "size_t count" +.Sh DESCRIPTION +The +.Fn strcat +and +.Fn strncat +functions +append a copy of the null-terminated string +.Fa append +to the end of the null-terminated string +.Fa s , +then add a terminating +.Ql \e0 . +The string +.Fa s +must have sufficient space to hold the result. +.Pp +The +.Fn strncat +function +appends not more than +.Fa count +characters. +.Sh RETURN VALUES +The +.Fn strcat +and +.Fn strncat +functions +return the pointer +.Fa s . +.Sh SEE ALSO +.Xr bcopy 3 , +.Xr memccpy 3 , +.Xr memcpy 3 , +.Xr memmove 3 , +.Xr strcpy 3 +.Sh STANDARDS +The +.Fn strcat +and +.Fn strncat +functions +conform to +.St -ansiC . diff --git a/lib/libc/string/strcat.c b/lib/libc/string/strcat.c new file mode 100644 index 0000000..3436967 --- /dev/null +++ b/lib/libc/string/strcat.c @@ -0,0 +1,50 @@ +/* + * Copyright (c) 1988, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#if defined(LIBC_SCCS) && !defined(lint) +static char sccsid[] = "@(#)strcat.c 8.1 (Berkeley) 6/4/93"; +#endif /* LIBC_SCCS and not lint */ + +#include <string.h> + +char * +strcat(s, append) + register char *s; + register const char *append; +{ + char *save = s; + + for (; *s; ++s); + while (*s++ = *append++); + return(save); +} diff --git a/lib/libc/string/strchr.3 b/lib/libc/string/strchr.3 new file mode 100644 index 0000000..d2676ba --- /dev/null +++ b/lib/libc/string/strchr.3 @@ -0,0 +1,87 @@ +.\" Copyright (c) 1990, 1991, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" This code is derived from software contributed to Berkeley by +.\" Chris Torek and the American National Standards Committee X3, +.\" on Information Processing Systems. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. All advertising materials mentioning features or use of this software +.\" must display the following acknowledgement: +.\" This product includes software developed by the University of +.\" California, Berkeley and its contributors. +.\" 4. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" @(#)strchr.3 8.2 (Berkeley) 4/19/94 +.\" +.Dd April 19, 1994 +.Dt STRCHR 3 +.Os +.Sh NAME +.Nm strchr +.Nd locate character in string +.Sh SYNOPSIS +.Fd #include <string.h> +.Ft char * +.Fn strchr "const char *s" "int c" +.Sh DESCRIPTION +The +.Fn strchr +function locates the first occurrence of +.Ar c +in the string pointed to by +.Ar s . +The terminating +.Dv NULL +character is considered part of the string. +If +.Fa c +is +.Ql \e0 , +.Fn strchr +locates the terminating +.Ql \e0 . +.Sh RETURN VALUES +The function +.Fn strchr +returns a pointer to the located character, or +.Dv NULL +if the character does not appear in the string. +.Sh SEE ALSO +.Xr index 3 , +.Xr memchr 3 , +.Xr rindex 3 , +.Xr strcspn 3 , +.Xr strpbrk 3 , +.Xr strrchr 3 , +.Xr strsep 3 , +.Xr strspn 3 , +.Xr strstr 3 , +.Xr strtok 3 +.Sh STANDARDS +The +.Fn strchr +function +conforms to +.St -ansiC . diff --git a/lib/libc/string/strcmp.3 b/lib/libc/string/strcmp.3 new file mode 100644 index 0000000..49e5f14 --- /dev/null +++ b/lib/libc/string/strcmp.3 @@ -0,0 +1,93 @@ +.\" Copyright (c) 1990, 1991, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" This code is derived from software contributed to Berkeley by +.\" Chris Torek and the American National Standards Committee X3, +.\" on Information Processing Systems. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. All advertising materials mentioning features or use of this software +.\" must display the following acknowledgement: +.\" This product includes software developed by the University of +.\" California, Berkeley and its contributors. +.\" 4. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" @(#)strcmp.3 8.1 (Berkeley) 6/4/93 +.\" +.Dd June 4, 1993 +.Dt STRCMP 3 +.Os +.Sh NAME +.Nm strcmp +.Nd compare strings +.Sh SYNOPSIS +.Fd #include <string.h> +.Ft int +.Fn strcmp "const char *s1" "const char *s2" +.Ft int +.Fn strncmp "const char *s1" "const char *s2" "size_t len" +.Sh DESCRIPTION +The +.Fn strcmp +and +.Fn strncmp +functions +lexicographically compare the null-terminated strings +.Fa s1 +and +.Fa s2 . +.Sh RETURN VALUES +The +.Fn strcmp +and +.Fn strncmp +return an integer greater than, equal to, or less than 0, according +as the string +.Fa s1 +is greater than, equal to, or less than the string +.Fa s2 . +The comparison is done using unsigned characters, so that +.Ql \e200 +is greater than +.Ql \e0 . +.Pp +The +.Fn strncmp +compares not more than +.Fa len +characters. +.Sh SEE ALSO +.Xr bcmp 3 , +.Xr memcmp 3 , +.Xr strcasecmp 3 , +.Xr strcoll 3 , +.Xr strxfrm 3 +.Sh STANDARDS +The +.Fn strcmp +and +.Fn strncmp +functions +conform to +.St -ansiC . diff --git a/lib/libc/string/strcmp.c b/lib/libc/string/strcmp.c new file mode 100644 index 0000000..79cfaa8 --- /dev/null +++ b/lib/libc/string/strcmp.c @@ -0,0 +1,55 @@ +/*- + * Copyright (c) 1990, 1993 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Chris Torek. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#if defined(LIBC_SCCS) && !defined(lint) +static char sccsid[] = "@(#)strcmp.c 8.1 (Berkeley) 6/4/93"; +#endif /* LIBC_SCCS and not lint */ + +#include <sys/cdefs.h> +#include <string.h> + +/* + * Compare strings. + */ +int +strcmp(s1, s2) + register const char *s1, *s2; +{ + while (*s1 == *s2++) + if (*s1++ == 0) + return (0); + return (*(unsigned char *)s1 - *(unsigned char *)--s2); +} diff --git a/lib/libc/string/strcoll.3 b/lib/libc/string/strcoll.3 new file mode 100644 index 0000000..95774f6 --- /dev/null +++ b/lib/libc/string/strcoll.3 @@ -0,0 +1,74 @@ +.\" Copyright (c) 1990, 1991, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" This code is derived from software contributed to Berkeley by +.\" Chris Torek and the American National Standards Committee X3, +.\" on Information Processing Systems. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. All advertising materials mentioning features or use of this software +.\" must display the following acknowledgement: +.\" This product includes software developed by the University of +.\" California, Berkeley and its contributors. +.\" 4. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" @(#)strcoll.3 8.1 (Berkeley) 6/4/93 +.\" +.Dd June 4, 1993 +.Dt STRCOLL 3 +.Os +.Sh NAME +.Nm strcoll +.Nd compare strings according to current collation +.Sh SYNOPSIS +.Fd #include <string.h> +.Ft int +.Fn strcoll "const char *s1" "const char *s2" +.Sh DESCRIPTION +The +.Fn strcoll +function +lexicographically compares the null-terminated strings +.Fa s1 +and +.Fa s2 +according to the current locale collation +and returns an integer greater than, equal to, or less than 0, +according as +.Fa s1 +is greater than, equal to, or less than +.Fa s2 . +.Sh SEE ALSO +.Xr bcmp 3 , +.Xr memcmp 3 , +.Xr setlocale 3 , +.Xr strcasecmp 3 , +.Xr strcmp 3 , +.Xr strxfrm 3 +.Sh STANDARDS +The +.Fn strcoll +function +conforms to +.St -ansiC . diff --git a/lib/libc/string/strcoll.c b/lib/libc/string/strcoll.c new file mode 100644 index 0000000..3b9f42e --- /dev/null +++ b/lib/libc/string/strcoll.c @@ -0,0 +1,53 @@ +/*- + * Copyright (c) 1990, 1993 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Chris Torek. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#if defined(LIBC_SCCS) && !defined(lint) +static char sccsid[] = "@(#)strcoll.c 8.1 (Berkeley) 6/4/93"; +#endif /* LIBC_SCCS and not lint */ + +#include <sys/cdefs.h> +#include <string.h> + +/* + * Compare strings according to LC_COLLATE category of current locale. + */ +int +strcoll(s1, s2) + const char *s1, *s2; +{ + /* LC_COLLATE is unimplemented, hence always "C" */ + return (strcmp(s1, s2)); +} diff --git a/lib/libc/string/strcpy.3 b/lib/libc/string/strcpy.3 new file mode 100644 index 0000000..1e6f335 --- /dev/null +++ b/lib/libc/string/strcpy.3 @@ -0,0 +1,121 @@ +.\" Copyright (c) 1990, 1991, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" This code is derived from software contributed to Berkeley by +.\" Chris Torek and the American National Standards Committee X3, +.\" on Information Processing Systems. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. All advertising materials mentioning features or use of this software +.\" must display the following acknowledgement: +.\" This product includes software developed by the University of +.\" California, Berkeley and its contributors. +.\" 4. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" @(#)strcpy.3 8.1 (Berkeley) 6/4/93 +.\" +.Dd June 4, 1993 +.Dt STRCPY 3 +.Os BSD 4 +.Sh NAME +.Nm strcpy +.Nd copy strings +.Sh SYNOPSIS +.Fd #include <string.h> +.Ft char * +.Fn strcpy "char *dst" "const char *src" +.Ft char * +.Fn strncpy "char *dst" "const char *src" "size_t len" +.Sh DESCRIPTION +The +.Fn strcpy +and +.Fn strncpy +functions +copy the string +.Fa src +to +.Fa dst +(including the terminating +.Ql \e0 +character). +.Pp +The +.Fn strncpy +copies not more than +.Fa len +characters into +.Fa dst , +appending +.Ql \e0 +characters if +.Fa src +is less than +.Fa len +characters long, and +.Em not +terminating +.Fa dst +if +.Fa src +is more than +.Fa len +characters long. +.Sh RETURN VALUES +The +.Fn strcpy +and +.Fn strncpy +functions +return +.Fa dst . +.Sh EXAMPLES +The following sets +.Dq Li chararray +to +.Dq Li abc\e0\e0\e0 : +.Bd -literal -offset indent +(void)strncpy(chararray, "abc", 6). +.Ed +.Pp +The following sets +.Dq Li chararray +to +.Dq Li abcdef : +.Bd -literal -offset indent +(void)strncpy(chararray, "abcdefgh", 6); +.Ed +.Sh SEE ALSO +.Xr bcopy 3 , +.Xr memccpy 3 , +.Xr memcpy 3 , +.Xr memmove 3 +.Sh STANDARDS +The +.Fn strcpy +and +.Fn strncpy +functions +conform to +.St -ansiC . diff --git a/lib/libc/string/strcpy.c b/lib/libc/string/strcpy.c new file mode 100644 index 0000000..d1791dd --- /dev/null +++ b/lib/libc/string/strcpy.c @@ -0,0 +1,50 @@ +/* + * Copyright (c) 1988, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#if defined(LIBC_SCCS) && !defined(lint) +static char sccsid[] = "@(#)strcpy.c 8.1 (Berkeley) 6/4/93"; +#endif /* LIBC_SCCS and not lint */ + +#include <sys/cdefs.h> +#include <string.h> + +char * +strcpy(to, from) + register char *to; + register const char *from; +{ + char *save = to; + + for (; *to = *from; ++from, ++to); + return(save); +} diff --git a/lib/libc/string/strcspn.3 b/lib/libc/string/strcspn.3 new file mode 100644 index 0000000..89d20fd --- /dev/null +++ b/lib/libc/string/strcspn.3 @@ -0,0 +1,84 @@ +.\" Copyright (c) 1990, 1991, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" This code is derived from software contributed to Berkeley by +.\" Chris Torek and the American National Standards Committee X3, +.\" on Information Processing Systems. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. All advertising materials mentioning features or use of this software +.\" must display the following acknowledgement: +.\" This product includes software developed by the University of +.\" California, Berkeley and its contributors. +.\" 4. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" @(#)strcspn.3 8.1 (Berkeley) 6/4/93 +.\" +.Dd June 4, 1993 +.Dt STRCSPN 3 +.Os +.Sh NAME +.Nm strcspn +.Nd span the complement of a string +.Sh SYNOPSIS +.Fd #include <string.h> +.Ft size_t +.Fn strcspn "const char *s" "const char *charset" +.Sh DESCRIPTION +The +.Fn strcspn +function +spans the initial part of the null-terminated string +.Fa s +as long as the characters from +.Fa s +do not occur in string +.Fa charset +(it +spans the +.Em complement +of +.Fa charset ) . +.Sh RETURN VALUES +The +.Fn strcspn +function +returns the number of characters spanned. +.Sh SEE ALSO +.Xr index 3 , +.Xr memchr 3 , +.Xr rindex 3 , +.Xr strchr 3 , +.Xr strpbrk 3 , +.Xr strrchr 3 , +.Xr strsep 3 , +.Xr strspn 3 , +.Xr strstr 3 , +.Xr strtok 3 +.Sh STANDARDS +The +.Fn strcspn +function +conforms to +.St -ansiC . diff --git a/lib/libc/string/strcspn.c b/lib/libc/string/strcspn.c new file mode 100644 index 0000000..a1c2e1d --- /dev/null +++ b/lib/libc/string/strcspn.c @@ -0,0 +1,68 @@ +/*- + * Copyright (c) 1990, 1993 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Chris Torek. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#if defined(LIBC_SCCS) && !defined(lint) +static char sccsid[] = "@(#)strcspn.c 8.1 (Berkeley) 6/4/93"; +#endif /* LIBC_SCCS and not lint */ + +#include <sys/cdefs.h> +#include <string.h> + +/* + * Span the complement of string s2. + */ +size_t +strcspn(s1, s2) + const char *s1; + register const char *s2; +{ + register const char *p, *spanp; + register char c, sc; + + /* + * Stop as soon as we find any character from s2. Note that there + * must be a NUL in s2; it suffices to stop when we find that, too. + */ + for (p = s1;;) { + c = *p++; + spanp = s2; + do { + if ((sc = *spanp++) == c) + return (p - 1 - s1); + } while (sc != 0); + } + /* NOTREACHED */ +} diff --git a/lib/libc/string/strdup.3 b/lib/libc/string/strdup.3 new file mode 100644 index 0000000..2f1d5d2 --- /dev/null +++ b/lib/libc/string/strdup.3 @@ -0,0 +1,63 @@ +.\" Copyright (c) 1990, 1991, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. All advertising materials mentioning features or use of this software +.\" must display the following acknowledgement: +.\" This product includes software developed by the University of +.\" California, Berkeley and its contributors. +.\" 4. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" @(#)strdup.3 8.1 (Berkeley) 6/9/93 +.\" +.Dd June 9, 1993 +.Dt STRDUP 3 +.Os +.Sh NAME +.Nm strdup +.Nd save a copy of a string +.Sh SYNOPSIS +.Fd #include <string.h> +.Ft char * +.Fn strdup "const char *str" +.Sh DESCRIPTION +The +.Fn strdup +function +allocates sufficient memory for a copy +of the string +.Fa str , +does the copy, and returns a pointer to it. +The pointer may subsequently be used as an +argument to the function +.Xr free 3 . +.Pp +If insufficient memory is available, NULL is returned. +.Sh SEE ALSO +.Xr malloc 3 +.Xr free 3 +.Sh HISTORY +The +.Fn strdup +function first appeared in 4.4BSD. diff --git a/lib/libc/string/strdup.c b/lib/libc/string/strdup.c new file mode 100644 index 0000000..6fa50ce --- /dev/null +++ b/lib/libc/string/strdup.c @@ -0,0 +1,56 @@ +/* + * Copyright (c) 1988, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#if defined(LIBC_SCCS) && !defined(lint) +static char sccsid[] = "@(#)strdup.c 8.1 (Berkeley) 6/4/93"; +#endif /* LIBC_SCCS and not lint */ + +#include <sys/types.h> + +#include <stddef.h> +#include <stdlib.h> +#include <string.h> + +char * +strdup(str) + const char *str; +{ + size_t len; + char *copy; + + len = strlen(str) + 1; + if (!(copy = malloc((u_int)len))) + return (NULL); + bcopy(str, copy, len); + return (copy); +} diff --git a/lib/libc/string/strerror.3 b/lib/libc/string/strerror.3 new file mode 100644 index 0000000..784c061 --- /dev/null +++ b/lib/libc/string/strerror.3 @@ -0,0 +1,124 @@ +.\" Copyright (c) 1980, 1991, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" This code is derived from software contributed to Berkeley by +.\" the American National Standards Committee X3, on Information +.\" Processing Systems. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. All advertising materials mentioning features or use of this software +.\" must display the following acknowledgement: +.\" This product includes software developed by the University of +.\" California, Berkeley and its contributors. +.\" 4. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" @(#)strerror.3 8.1 (Berkeley) 6/9/93 +.\" +.Dd June 9, 1993 +.Dt STRERROR 3 +.Os BSD 4 +.Sh NAME +.Nm perror , +.Nm strerror , +.Nm sys_errlist , +.Nm sys_nerr +.Nd system error messages +.Sh SYNOPSIS +.Fd #include <stdio.h> +.Ft void +.Fn perror "const char *string" +.Vt extern char *sys_errlist[]; +.Vt extern int sys_nerr; +.Fd #include <string.h> +.Ft char * +.Fn strerror "int errnum" +.Sh DESCRIPTION +The +.Fn strerror +and +.Fn perror +functions look up the error message string corresponding to an +error number. +.Pp +The +.Fn strerror +function accepts an error number argument +.Fa errnum +and +returns a pointer to the corresponding +message string. +.Pp +The +.Fn perror +function finds the error message corresponding to the current +value of the global variable +.Va errno +.Pq Xr intro 2 +and writes it, followed by a newline, to the +standard error file descriptor. +If the argument +.Fa string +is +.Pf non- Dv NULL , +it is prepended to the message +string and separated from it by +a colon and space +.Pq Ql \&:\ \& . +If +.Fa string +is +.Dv NULL , +only the error message string is printed. +.Pp +If +.Fa errnum +is not a recognized error number, +the error message string will contain +.Dq Li "Unknown error:\0 +followed by the error number in decimal. +.Pp +The message strings can be accessed directly using the external +array +.Fa sys_errlist . +The external value +.Fa sys_nerr +contains a count of the messages in +.Fa sys_errlist . +The use of these variables is deprecated; +.Fn strerror +should be used instead. +.Sh SEE ALSO +.Xr intro 2 , +.Xr psignal 3 +.Sh HISTORY +The +.Fn strerror +and +.Fn perror +functions first appeared in 4.4BSD. +.Sh BUGS +For unknown error numbers, the +.Fn strerror +function will return its result in a static buffer which +may be overwritten by subsequent calls. diff --git a/lib/libc/string/strerror.c b/lib/libc/string/strerror.c new file mode 100644 index 0000000..53f374b --- /dev/null +++ b/lib/libc/string/strerror.c @@ -0,0 +1,67 @@ +/* + * Copyright (c) 1988, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#if defined(LIBC_SCCS) && !defined(lint) +static char sccsid[] = "@(#)strerror.c 8.1 (Berkeley) 6/4/93"; +#endif /* LIBC_SCCS and not lint */ + +#include <string.h> + +char * +strerror(num) + int num; +{ + extern int sys_nerr; + extern char *sys_errlist[]; +#define UPREFIX "Unknown error: " + static char ebuf[40] = UPREFIX; /* 64-bit number + slop */ + register unsigned int errnum; + register char *p, *t; + char tmp[40]; + + errnum = num; /* convert to unsigned */ + if (errnum < sys_nerr) + return(sys_errlist[errnum]); + + /* Do this by hand, so we don't include stdio(3). */ + t = tmp; + do { + *t++ = "0123456789"[errnum % 10]; + } while (errnum /= 10); + for (p = ebuf + sizeof(UPREFIX) - 1;;) { + *p++ = *--t; + if (t <= tmp) + break; + } + return(ebuf); +} diff --git a/lib/libc/string/strftime.3 b/lib/libc/string/strftime.3 new file mode 100644 index 0000000..3da35a1 --- /dev/null +++ b/lib/libc/string/strftime.3 @@ -0,0 +1,186 @@ +.\" Copyright (c) 1989, 1991, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" This code is derived from software contributed to Berkeley by +.\" the American National Standards Committee X3, on Information +.\" Processing Systems. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. All advertising materials mentioning features or use of this software +.\" must display the following acknowledgement: +.\" This product includes software developed by the University of +.\" California, Berkeley and its contributors. +.\" 4. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" @(#)strftime.3 8.1 (Berkeley) 6/4/93 +.\" +.Dd June 4, 1993 +.Dt STRFTIME 3 +.Os +.Sh NAME +.Nm strftime +.Nd format date and time +.Sh SYNOPSIS +.Fd #include <sys/types.h> +.Fd #include <time.h> +.Fd #include <string.h> +.Ft size_t +.Fn strftime "char *buf" "size_t maxsize" "const char *format" "const struct tm *timeptr" +.Sh DESCRIPTION +The +.Fn strftime +function formats the information from +.Fa timeptr +into the buffer +.Fa buf +according to the string pointed to by +.Fa format . +.Pp +The +.Fa format +string consists of zero or more conversion specifications and +ordinary characters. +All ordinary characters are copied directly into the buffer. +A conversion specification consists of a percent sign +.Dq Ql % +and one other character. +.Pp +No more than +.Fa maxsize +characters will be placed into the array. +If the total number of resulting characters, including the terminating +null character, is not more than +.Fa maxsize , +.Fn strftime +returns the number of characters in the array, not counting the +terminating null. +Otherwise, zero is returned. +.Pp +Each conversion specification is replaced by the characters as +follows which are then copied into the buffer. +.Bl -tag -width "xxxx" +.It Cm \&%A +is replaced by the full weekday name. +.It Cm %a +is replaced by the abbreviated weekday name, where the abbreviation +is the first three characters. +.It Cm \&%B +is replaced by the full month name. +.It Cm %b or %h +is replaced by the abbreviated month name, where the abbreviation is +the first three characters. +.It Cm \&%C +is equivalent to +.Dq Li %a %b %e %H:%M:%S %Y +(the format produced by +.Xr asctime 3 . +.It Cm %c +is equivalent to +.Dq Li %m/%d/%y . +.It Cm \&%D +is replaced by the date in the format +.Dq Ql mm/dd/yy . +.It Cm %d +is replaced by the day of the month as a decimal number (01-31). +.It Cm %e +is replaced by the day of month as a decimal number (1-31); single +digits are preceded by a blank. +.It Cm \&%H +is replaced by the hour (24-hour clock) as a decimal number (00-23). +.It Cm \&%I +is replaced by the hour (12-hour clock) as a decimal number (01-12). +.It Cm %j +is replaced by the day of the year as a decimal number (001-366). +.It Cm %k +is replaced by the hour (24-hour clock) as a decimal number (0-23); +single digits are preceded by a blank. +.It Cm %l +is replaced by the hour (12-hour clock) as a decimal number (1-12); +single digits are preceded by a blank. +.It Cm \&%M +is replaced by the minute as a decimal number (00-59). +.It Cm %m +is replaced by the month as a decimal number (01-12). +.It Cm %n +is replaced by a newline. +.It Cm %p +is replaced by either +.Dq Tn AM +or +.Dq Tn PM +as appropriate. +.It Cm \&%R +is equivalent to +.Dq Li %H:%M +.It Cm %r +is equivalent to +.Dq Li %I:%M:%S %p . +.It Cm %t +is replaced by a tab. +.It Cm \&%S +is replaced by the second as a decimal number (00-60). +.It Cm %s +is replaced by the number of seconds since the Epoch, UCT (see +.Xr mktime 3 ) . +.It Cm \&%T No or Cm \&%X +is equivalent to +.Dq Li %H:%M:%S . +.It Cm \&%U +is replaced by the week number of the year (Sunday as the first day of +the week) as a decimal number (00-53). +.It Cm \&%W +is replaced by the week number of the year (Monday as the first day of +the week) as a decimal number (00-53). +.It Cm %w +is replaced by the weekday (Sunday as the first day of the week) +as a decimal number (0-6). +.It Cm %x +is equivalent to +.Dq Li %m/%d/%y %H:%M:%S . +.It Cm \&%Y +is replaced by the year with century as a decimal number. +.It Cm %y +is replaced by the year without century as a decimal number (00-99). +.It Cm \&%Z +is replaced by the time zone name. +.It Cm %% +is replaced by +.Ql % . +.El +.Sh SEE ALSO +.Xr date 1 , +.Xr ctime 3 , +.Xr printf 1 , +.Xr printf 3 +.Sh STANDARDS +The +.Fn strftime +function +conforms to +.St -ansiC . +The +.Ql %s +conversion specification is an extension. +.Sh BUGS +There is no conversion specification for the phase of the moon. diff --git a/lib/libc/string/strftime.c b/lib/libc/string/strftime.c new file mode 100644 index 0000000..b39aeeb --- /dev/null +++ b/lib/libc/string/strftime.c @@ -0,0 +1,292 @@ +/* + * Copyright (c) 1989, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#if defined(LIBC_SCCS) && !defined(lint) +static char sccsid[] = "@(#)strftime.c 8.1 (Berkeley) 6/4/93"; +#endif /* LIBC_SCCS and not lint */ + +#include <sys/types.h> +#include <sys/time.h> +#include <tzfile.h> +#include <string.h> + +static char *afmt[] = { + "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat", +}; +static char *Afmt[] = { + "Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", + "Saturday", +}; +static char *bfmt[] = { + "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", + "Oct", "Nov", "Dec", +}; +static char *Bfmt[] = { + "January", "February", "March", "April", "May", "June", "July", + "August", "September", "October", "November", "December", +}; + +static size_t gsize; +static char *pt; +static int _add __P((char *)); +static int _conv __P((int, int, int)); +static int _secs __P((const struct tm *)); +static size_t _fmt __P((const char *, const struct tm *)); + +size_t +strftime(s, maxsize, format, t) + char *s; + size_t maxsize; + const char *format; + const struct tm *t; +{ + + pt = s; + if ((gsize = maxsize) < 1) + return(0); + if (_fmt(format, t)) { + *pt = '\0'; + return(maxsize - gsize); + } + return(0); +} + +static size_t +_fmt(format, t) + register const char *format; + const struct tm *t; +{ + for (; *format; ++format) { + if (*format == '%') + switch(*++format) { + case '\0': + --format; + break; + case 'A': + if (t->tm_wday < 0 || t->tm_wday > 6) + return(0); + if (!_add(Afmt[t->tm_wday])) + return(0); + continue; + case 'a': + if (t->tm_wday < 0 || t->tm_wday > 6) + return(0); + if (!_add(afmt[t->tm_wday])) + return(0); + continue; + case 'B': + if (t->tm_mon < 0 || t->tm_mon > 11) + return(0); + if (!_add(Bfmt[t->tm_mon])) + return(0); + continue; + case 'b': + case 'h': + if (t->tm_mon < 0 || t->tm_mon > 11) + return(0); + if (!_add(bfmt[t->tm_mon])) + return(0); + continue; + case 'C': + if (!_fmt("%a %b %e %H:%M:%S %Y", t)) + return(0); + continue; + case 'c': + if (!_fmt("%m/%d/%y %H:%M:%S", t)) + return(0); + continue; + case 'D': + if (!_fmt("%m/%d/%y", t)) + return(0); + continue; + case 'd': + if (!_conv(t->tm_mday, 2, '0')) + return(0); + continue; + case 'e': + if (!_conv(t->tm_mday, 2, ' ')) + return(0); + continue; + case 'H': + if (!_conv(t->tm_hour, 2, '0')) + return(0); + continue; + case 'I': + if (!_conv(t->tm_hour % 12 ? + t->tm_hour % 12 : 12, 2, '0')) + return(0); + continue; + case 'j': + if (!_conv(t->tm_yday + 1, 3, '0')) + return(0); + continue; + case 'k': + if (!_conv(t->tm_hour, 2, ' ')) + return(0); + continue; + case 'l': + if (!_conv(t->tm_hour % 12 ? + t->tm_hour % 12 : 12, 2, ' ')) + return(0); + continue; + case 'M': + if (!_conv(t->tm_min, 2, '0')) + return(0); + continue; + case 'm': + if (!_conv(t->tm_mon + 1, 2, '0')) + return(0); + continue; + case 'n': + if (!_add("\n")) + return(0); + continue; + case 'p': + if (!_add(t->tm_hour >= 12 ? "PM" : "AM")) + return(0); + continue; + case 'R': + if (!_fmt("%H:%M", t)) + return(0); + continue; + case 'r': + if (!_fmt("%I:%M:%S %p", t)) + return(0); + continue; + case 'S': + if (!_conv(t->tm_sec, 2, '0')) + return(0); + continue; + case 's': + if (!_secs(t)) + return(0); + continue; + case 'T': + case 'X': + if (!_fmt("%H:%M:%S", t)) + return(0); + continue; + case 't': + if (!_add("\t")) + return(0); + continue; + case 'U': + if (!_conv((t->tm_yday + 7 - t->tm_wday) / 7, + 2, '0')) + return(0); + continue; + case 'W': + if (!_conv((t->tm_yday + 7 - + (t->tm_wday ? (t->tm_wday - 1) : 6)) + / 7, 2, '0')) + return(0); + continue; + case 'w': + if (!_conv(t->tm_wday, 1, '0')) + return(0); + continue; + case 'x': + if (!_fmt("%m/%d/%y", t)) + return(0); + continue; + case 'y': + if (!_conv((t->tm_year + TM_YEAR_BASE) + % 100, 2, '0')) + return(0); + continue; + case 'Y': + if (!_conv(t->tm_year + TM_YEAR_BASE, 4, '0')) + return(0); + continue; + case 'Z': + if (!t->tm_zone || !_add(t->tm_zone)) + return(0); + continue; + case '%': + /* + * X311J/88-090 (4.12.3.5): if conversion char is + * undefined, behavior is undefined. Print out the + * character itself as printf(3) does. + */ + default: + break; + } + if (!gsize--) + return(0); + *pt++ = *format; + } + return(gsize); +} + +static int +_secs(t) + const struct tm *t; +{ + static char buf[15]; + register time_t s; + register char *p; + struct tm tmp; + + /* Make a copy, mktime(3) modifies the tm struct. */ + tmp = *t; + s = mktime(&tmp); + for (p = buf + sizeof(buf) - 2; s > 0 && p > buf; s /= 10) + *p-- = s % 10 + '0'; + return(_add(++p)); +} + +static int +_conv(n, digits, pad) + int n, digits, pad; +{ + static char buf[10]; + register char *p; + + for (p = buf + sizeof(buf) - 2; n > 0 && p > buf; n /= 10, --digits) + *p-- = n % 10 + '0'; + while (p > buf && digits-- > 0) + *p-- = pad; + return(_add(++p)); +} + +static int +_add(str) + register char *str; +{ + for (;; ++pt, --gsize) { + if (!gsize) + return(0); + if (!(*pt = *str++)) + return(1); + } +} diff --git a/lib/libc/string/string.3 b/lib/libc/string/string.3 new file mode 100644 index 0000000..c257d94 --- /dev/null +++ b/lib/libc/string/string.3 @@ -0,0 +1,155 @@ +.\" Copyright (c) 1990, 1991, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" This code is derived from software contributed to Berkeley by +.\" Chris Torek. +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. All advertising materials mentioning features or use of this software +.\" must display the following acknowledgement: +.\" This product includes software developed by the University of +.\" California, Berkeley and its contributors. +.\" 4. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" @(#)string.3 8.2 (Berkeley) 12/11/93 +.\" +.Dd December 11, 1993 +.Dt STRING 3 +.Os BSD 4 +.Sh NAME +.Nm strcat , +.Nm strncat , +.Nm strchr , +.Nm strrchr , +.Nm strcmp , +.Nm strncmp , +.Nm strcasecmp, +.Nm strncasecmp , +.Nm strcpy , +.Nm strncpy , +.Nm strerror , +.Nm strlen , +.Nm strpbrk , +.Nm strsep, +.Nm strspn , +.Nm strcspn , +.Nm strstr , +.Nm strtok , +.Nm index , +.Nm rindex +.Nd string specific functions +.Sh SYNOPSIS +.Fd #include <string.h> +.Ft char * +.Fn strcat "char *s" "const char * append" +.Ft char * +.Fn strncat "char *s" "const char *append" "size_t count" +.Ft char * +.Fn strchr "const char *s" "int c" +.Ft char * +.Fn strrchr "const char *s" "int c" +.Ft int +.Fn strcmp "const char *s1" "const char *s2" +.Ft int +.Fn strncmp "const char *s1" "const char *s2" "size_t count" +.Ft int +.Fn strcasecmp "const char *s1" "const char *s2" +.Ft int +.Fn strncasecmp "const char *s1" "const char *s2" "size_t count" +.Ft char * +.Fn strcpy "char *dst" "const char *src" +.Ft char * +.Fn strncpy "char *dst" "const char *src" "size_t count" +.Ft char * +.Fn strerror "int errno" +.Ft size_t +.Fn strlen "const char *s" +.Ft char * +.Fn strpbrk "const char *s" "const char *charset" +.Ft char * +.Fn strsep "char **stringp" "const char *delim" +.Ft size_t +.Fn strspn "const char *s" "const char *charset" +.Ft size_t +.Fn strcspn "const char *s" "const char *charset" +.Ft char * +.Fn strstr "const char *big" "const char *little" +.Ft char * +.Fn strtok "char *s" "const char *delim" +.Ft char * +.Fn index "const char *s" "int c" +.Ft char * +.Fn rindex "const char *s" "int c" +.Sh DESCRIPTION +The string +functions manipulate strings terminated by a +null byte. +.Pp +See the specific manual pages for more information. +For manipulating variable length generic objects as byte +strings (without the null byte check), see +.Xr bstring 3 . +.Pp +Except as noted in their specific manual pages, +the string functions do not test the destination +for size limitations. +.Sh SEE ALSO +.Xr index 3 , +.Xr strcat 3 , +.Xr strchr 3 , +.Xr strrchr 3 , +.Xr strcmp 3 , +.Xr strcasecmp 3 , +.Xr strcpy 3 , +.Xr strerror 3 , +.Xr strlen 3 , +.Xr strpbrk 3 , +.Xr strsep 3 , +.Xr strspn 3 , +.Xr strcspn 3 , +.Xr strstr 3 , +.Xr strtok 3 , +.Xr rindex 3 +.Xr bstring 3 +.Sh STANDARDS +The +.Fn strcat , +.Fn strncat , +.Fn strchr , +.Fn strrchr , +.Fn strcmp , +.Fn strncmp , +.Fn strcpy , +.Fn strncpy , +.Fn strerror , +.Fn strlen , +.Fn strpbrk , +.Fn strsep , +.Fn strspn , +.Fn strcspn , +.Fn strstr , +and +.Fn strtok +functions +conform to +.St -ansiC . diff --git a/lib/libc/string/strlen.3 b/lib/libc/string/strlen.3 new file mode 100644 index 0000000..04cb48e --- /dev/null +++ b/lib/libc/string/strlen.3 @@ -0,0 +1,70 @@ +.\" Copyright (c) 1990, 1991, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" This code is derived from software contributed to Berkeley by +.\" Chris Torek and the American National Standards Committee X3, +.\" on Information Processing Systems. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. All advertising materials mentioning features or use of this software +.\" must display the following acknowledgement: +.\" This product includes software developed by the University of +.\" California, Berkeley and its contributors. +.\" 4. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" @(#)strlen.3 8.1 (Berkeley) 6/4/93 +.\" +.Dd June 4, 1993 +.Dt STRLEN 3 +.Os +.Sh NAME +.Nm strlen +.Nd find length of string +.Sh SYNOPSIS +.Fd #include <string.h> +.Ft size_t +.Fn strlen "const char *s" +.Sh DESCRIPTION +The +.Fn strlen +function +computes the length of the string +.Fa s . +.Sh RETURN VALUES +The +.Fn strlen +function +returns +the number of characters that precede the +terminating +.Dv NUL +character. +.Sh SEE ALSO +.Xr string 3 +.Sh STANDARDS +The +.Fn strlen +function +conforms to +.St -ansiC . diff --git a/lib/libc/string/strlen.c b/lib/libc/string/strlen.c new file mode 100644 index 0000000..323fbe4 --- /dev/null +++ b/lib/libc/string/strlen.c @@ -0,0 +1,50 @@ +/*- + * Copyright (c) 1990, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#if defined(LIBC_SCCS) && !defined(lint) +static char sccsid[] = "@(#)strlen.c 8.1 (Berkeley) 6/4/93"; +#endif /* LIBC_SCCS and not lint */ + +#include <sys/cdefs.h> +#include <string.h> + +size_t +strlen(str) + const char *str; +{ + register const char *s; + + for (s = str; *s; ++s); + return(s - str); +} + diff --git a/lib/libc/string/strmode.3 b/lib/libc/string/strmode.3 new file mode 100644 index 0000000..0cedd55 --- /dev/null +++ b/lib/libc/string/strmode.3 @@ -0,0 +1,147 @@ +.\" Copyright (c) 1990, 1991, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. All advertising materials mentioning features or use of this software +.\" must display the following acknowledgement: +.\" This product includes software developed by the University of +.\" California, Berkeley and its contributors. +.\" 4. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" @(#)strmode.3 8.2 (Berkeley) 12/11/93 +.\" +.Dd December 11, 1993 +.Dt STRMODE 3 +.Os +.Sh NAME +.Nm strmode +.Nd convert inode status information into a symbolic string +.Sh SYNOPSIS +.Fd #include <string.h> +.Ft void +.Fn strmode "mode_t mode" "char *bp" +.Sh DESCRIPTION +The +.Fn strmode +function +converts a file +.Fa mode +(the type and permission information associated with an inode, see +.Xr stat 2 ) +into a symbolic string which is stored in the location referenced by +.Fa bp . +This stored string is eleven characters in length plus a trailing +.Dv NULL . +.Pp +The first character is the inode type, and will be one of the following: +.Pp +.Bl -tag -width flag -offset indent -compact +.It \- +regular file +.It b +block special +.It c +character special +.It d +directory +.It l +symbolic link +.It p +fifo +.It s +socket +.It ? +unknown inode type +.El +.Pp +The next nine characters encode three sets of permissions, in three +characters each. +The first three characters are the permissions for the owner of the +file, the second three for the group the file belongs to, and the +third for the ``other'', or default, set of users. +.Pp +Permission checking is done as specifically as possible. +If read permission is denied to the owner of a file in the first set +of permissions, the owner of the file will not be able to read the file. +This is true even if the owner is in the file's group and the group +permissions allow reading or the ``other'' permissions allow reading. +.Pp +If the first character of the three character set is an ``r'', the file is +readable for that set of users; if a dash ``\-'', it is not readable. +.Pp +If the second character of the three character set is a ``w'', the file is +writable for that set of users; if a dash ``\-'', it is not writable. +.Pp +The third character is the first of the following characters that apply: +.Bl -tag -width xxxx +.It S +If the character is part of the owner permissions and the file is not +executable or the directory is not searchable by the owner, and the +set-user-id bit is set. +.It S +If the character is part of the group permissions and the file is not +executable or the directory is not searchable by the group, and the +set-group-id bit is set. +.It T +If the character is part of the other permissions and the file is not +executable or the directory is not searchable by others, and the ``sticky'' +.Pq Dv S_ISVTX +bit is set. +.It s +If the character is part of the owner permissions and the file is +executable or the directory searchable by the owner, and the set-user-id +bit is set. +.It s +If the character is part of the group permissions and the file is +executable or the directory searchable by the group, and the set-group-id +bit is set. +.It t +If the character is part of the other permissions and the file is +executable or the directory searchable by others, and the ``sticky'' +.Pq Dv S_ISVTX +bit is set. +.It x +The file is executable or the directory is searchable. +.It \- +None of the above apply. +.El +.Pp +The last character is a plus sign ``+'' if any there are any alternate +or additional access control methods associated with the inode, otherwise +it will be a space. +.Sh RETURN VALUES +The +.Fn strmode +function +always returns 0. +.Sh SEE ALSO +.Xr chmod 1 , +.Xr find 1 , +.Xr stat 2 , +.Xr getmode 3 , +.Xr setmode 3 +.Sh HISTORY +The +.Fn strmode +function first appeared in 4.4BSD. diff --git a/lib/libc/string/strmode.c b/lib/libc/string/strmode.c new file mode 100644 index 0000000..651b263 --- /dev/null +++ b/lib/libc/string/strmode.c @@ -0,0 +1,147 @@ +/*- + * Copyright (c) 1990, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#if defined(LIBC_SCCS) && !defined(lint) +static char sccsid[] = "@(#)strmode.c 8.1 (Berkeley) 6/4/93"; +#endif /* LIBC_SCCS and not lint */ + +#include <sys/types.h> +#include <sys/stat.h> +#include <string.h> + +void +strmode(mode, p) + register mode_t mode; + register char *p; +{ + /* print type */ + switch (mode & S_IFMT) { + case S_IFDIR: /* directory */ + *p++ = 'd'; + break; + case S_IFCHR: /* character special */ + *p++ = 'c'; + break; + case S_IFBLK: /* block special */ + *p++ = 'b'; + break; + case S_IFREG: /* regular */ + *p++ = '-'; + break; + case S_IFLNK: /* symbolic link */ + *p++ = 'l'; + break; + case S_IFSOCK: /* socket */ + *p++ = 's'; + break; +#ifdef S_IFIFO + case S_IFIFO: /* fifo */ + *p++ = 'p'; + break; +#endif + default: /* unknown */ + *p++ = '?'; + break; + } + /* usr */ + if (mode & S_IRUSR) + *p++ = 'r'; + else + *p++ = '-'; + if (mode & S_IWUSR) + *p++ = 'w'; + else + *p++ = '-'; + switch (mode & (S_IXUSR | S_ISUID)) { + case 0: + *p++ = '-'; + break; + case S_IXUSR: + *p++ = 'x'; + break; + case S_ISUID: + *p++ = 'S'; + break; + case S_IXUSR | S_ISUID: + *p++ = 's'; + break; + } + /* group */ + if (mode & S_IRGRP) + *p++ = 'r'; + else + *p++ = '-'; + if (mode & S_IWGRP) + *p++ = 'w'; + else + *p++ = '-'; + switch (mode & (S_IXGRP | S_ISGID)) { + case 0: + *p++ = '-'; + break; + case S_IXGRP: + *p++ = 'x'; + break; + case S_ISGID: + *p++ = 'S'; + break; + case S_IXGRP | S_ISGID: + *p++ = 's'; + break; + } + /* other */ + if (mode & S_IROTH) + *p++ = 'r'; + else + *p++ = '-'; + if (mode & S_IWOTH) + *p++ = 'w'; + else + *p++ = '-'; + switch (mode & (S_IXOTH | S_ISVTX)) { + case 0: + *p++ = '-'; + break; + case S_IXOTH: + *p++ = 'x'; + break; + case S_ISVTX: + *p++ = 'T'; + break; + case S_IXOTH | S_ISVTX: + *p++ = 't'; + break; + } + *p++ = ' '; /* will be a '+' if ACL's implemented */ + *p = '\0'; +} diff --git a/lib/libc/string/strncat.c b/lib/libc/string/strncat.c new file mode 100644 index 0000000..1b82a75 --- /dev/null +++ b/lib/libc/string/strncat.c @@ -0,0 +1,68 @@ +/*- + * Copyright (c) 1990, 1993 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Chris Torek. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#if defined(LIBC_SCCS) && !defined(lint) +static char sccsid[] = "@(#)strncat.c 8.1 (Berkeley) 6/4/93"; +#endif /* LIBC_SCCS and not lint */ + +#include <sys/cdefs.h> +#include <string.h> + +/* + * Concatenate src on the end of dst. At most strlen(dst)+n+1 bytes + * are written at dst (at most n+1 bytes being appended). Return dst. + */ +char * +strncat(dst, src, n) + char *dst; + const char *src; + register size_t n; +{ + if (n != 0) { + register char *d = dst; + register const char *s = src; + + while (*d != 0) + d++; + do { + if ((*d = *s++) == 0) + break; + d++; + } while (--n != 0); + *d = 0; + } + return (dst); +} diff --git a/lib/libc/string/strncmp.c b/lib/libc/string/strncmp.c new file mode 100644 index 0000000..805b5b0 --- /dev/null +++ b/lib/libc/string/strncmp.c @@ -0,0 +1,56 @@ +/* + * Copyright (c) 1989, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#if defined(LIBC_SCCS) && !defined(lint) +static char sccsid[] = "@(#)strncmp.c 8.1 (Berkeley) 6/4/93"; +#endif /* LIBC_SCCS and not lint */ + +#include <sys/cdefs.h> +#include <string.h> + +int +strncmp(s1, s2, n) + register const char *s1, *s2; + register size_t n; +{ + + if (n == 0) + return (0); + do { + if (*s1 != *s2++) + return (*(unsigned char *)s1 - *(unsigned char *)--s2); + if (*s1++ == 0) + break; + } while (--n != 0); + return (0); +} diff --git a/lib/libc/string/strncpy.c b/lib/libc/string/strncpy.c new file mode 100644 index 0000000..9e72740 --- /dev/null +++ b/lib/libc/string/strncpy.c @@ -0,0 +1,68 @@ +/*- + * Copyright (c) 1990, 1993 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Chris Torek. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#if defined(LIBC_SCCS) && !defined(lint) +static char sccsid[] = "@(#)strncpy.c 8.1 (Berkeley) 6/4/93"; +#endif /* LIBC_SCCS and not lint */ + +#include <sys/cdefs.h> +#include <string.h> + +/* + * Copy src to dst, truncating or null-padding to always copy n bytes. + * Return dst. + */ +char * +strncpy(dst, src, n) + char *dst; + const char *src; + register size_t n; +{ + if (n != 0) { + register char *d = dst; + register const char *s = src; + + do { + if ((*d++ = *s++) == 0) { + /* NUL pad the remaining n-1 bytes */ + while (--n != 0) + *d++ = 0; + break; + } + } while (--n != 0); + } + return (dst); +} diff --git a/lib/libc/string/strpbrk.3 b/lib/libc/string/strpbrk.3 new file mode 100644 index 0000000..6b0edaf --- /dev/null +++ b/lib/libc/string/strpbrk.3 @@ -0,0 +1,79 @@ +.\" Copyright (c) 1990, 1991, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" This code is derived from software contributed to Berkeley by +.\" Chris Torek and the American National Standards Committee X3, +.\" on Information Processing Systems. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. All advertising materials mentioning features or use of this software +.\" must display the following acknowledgement: +.\" This product includes software developed by the University of +.\" California, Berkeley and its contributors. +.\" 4. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" @(#)strpbrk.3 8.1 (Berkeley) 6/4/93 +.\" +.Dd June 4, 1993 +.Dt STRPBRK 3 +.Os +.Sh NAME +.Nm strpbrk +.Nd locate multiple characters in string +.Sh SYNOPSIS +.Fd #include <string.h> +.Ft char * +.Fn strpbrk "const char *s" "const char *charset" +.Sh DESCRIPTION +The +.Fn strpbrk +function +locates in the null-terminated string +.Fa s +the first occurrence of any character in the string +.Fa charset +and returns a pointer to this character. +If no characters from +.Fa charset +occur anywhere in +.Fa s +.Fn strpbrk +returns NULL. +.Sh SEE ALSO +.Xr index 3 , +.Xr memchr 3 , +.Xr rindex 3 , +.Xr strchr 3 , +.Xr strcspn 3 , +.Xr strrchr 3 , +.Xr strsep 3 , +.Xr strspn 3 , +.Xr strstr 3 , +.Xr strtok 3 +.Sh STANDARDS +The +.Fn strpbrk +function +conforms to +.St -ansiC . diff --git a/lib/libc/string/strpbrk.c b/lib/libc/string/strpbrk.c new file mode 100644 index 0000000..119d8b7 --- /dev/null +++ b/lib/libc/string/strpbrk.c @@ -0,0 +1,57 @@ +/* + * Copyright (c) 1985, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#if defined(LIBC_SCCS) && !defined(lint) +static char sccsid[] = "@(#)strpbrk.c 8.1 (Berkeley) 6/4/93"; +#endif /* LIBC_SCCS and not lint */ + +#include <sys/cdefs.h> +#include <string.h> + +/* + * Find the first occurrence in s1 of a character in s2 (excluding NUL). + */ +char * +strpbrk(s1, s2) + register const char *s1, *s2; +{ + register const char *scanp; + register int c, sc; + + while ((c = *s1++) != 0) { + for (scanp = s2; (sc = *scanp++) != 0;) + if (sc == c) + return ((char *)(s1 - 1)); + } + return (NULL); +} diff --git a/lib/libc/string/strrchr.3 b/lib/libc/string/strrchr.3 new file mode 100644 index 0000000..dd551d4 --- /dev/null +++ b/lib/libc/string/strrchr.3 @@ -0,0 +1,90 @@ +.\" Copyright (c) 1990, 1991, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" This code is derived from software contributed to Berkeley by +.\" Chris Torek and the American National Standards Committee X3, +.\" on Information Processing Systems. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. All advertising materials mentioning features or use of this software +.\" must display the following acknowledgement: +.\" This product includes software developed by the University of +.\" California, Berkeley and its contributors. +.\" 4. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" @(#)strrchr.3 8.1 (Berkeley) 6/4/93 +.\" +.Dd June 4, 1993 +.Dt STRRCHR 3 +.Os +.Sh NAME +.Nm strrchr +.Nd locate character in string +.Sh SYNOPSIS +.Fd #include <string.h> +.Ft char * +.Fn strrchr "const char *s" "int c" +.Sh DESCRIPTION +The +.Fn strrchr +function +locates the last occurrence of +.Fa c +(converted to a char) +in the string +.Fa s . +If +.Fa c +is +.Ql \e0 , +.Fn strrchr +locates the terminating +.Ql \e0 . +.Sh RETURN VALUES +The +.Fn strrchr +function +returns a pointer to the character, +or a null +pointer if +.Fa c +does not occur anywhere in +.Fa s . +.Sh SEE ALSO +.Xr index 3 , +.Xr memchr 3 , +.Xr rindex 3 , +.Xr strchr 3 , +.Xr strcspn 3 , +.Xr strpbrk 3 , +.Xr strsep 3 , +.Xr strspn 3 , +.Xr strstr 3 , +.Xr strtok 3 +.Sh STANDARDS +The +.Fn strrchr +function +conforms to +.St -ansiC . diff --git a/lib/libc/string/strsep.3 b/lib/libc/string/strsep.3 new file mode 100644 index 0000000..938b657 --- /dev/null +++ b/lib/libc/string/strsep.3 @@ -0,0 +1,107 @@ +.\" Copyright (c) 1990, 1991, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" This code is derived from software contributed to Berkeley by +.\" Chris Torek. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. All advertising materials mentioning features or use of this software +.\" must display the following acknowledgement: +.\" This product includes software developed by the University of +.\" California, Berkeley and its contributors. +.\" 4. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" @(#)strsep.3 8.1 (Berkeley) 6/9/93 +.\" +.Dd June 9, 1993 +.Dt STRSEP 3 +.Os +.Sh NAME +.Nm strsep +.Nd separate strings +.Sh SYNOPSIS +.Fd #include <string.h> +.Ft char * +.Fn strsep "char **stringp" "char *delim" +.Sh DESCRIPTION +The +.Fn strsep +function locates, in the string referenced by +.Fa *stringp , +the first occurrence of any character in the string +.Fa delim +(or the terminating +.Ql \e0 +character) and replaces it with a +.Ql \e0 . +The location of the next character after the delimiter character +(or NULL, if the end of the string was reached) is stored in +.Fa *stringp . +The original value of +.Fa *stringp +is returned. +.Pp +An ``empty'' field, i.e. one caused by two adjacent delimiter characters, +can be detected by comparing the location referenced by the pointer returned +in +.Fa *stringp +to +.Ql \e0 . +.Pp +If +.Fa *stringp +is initially +.Dv NULL , +.Fn strsep +returns +.Dv NULL . +.Sh EXAMPLES +The following uses +.Fn strsep +to parse a string, containing tokens delimited by white space, into an +argument vector: +.Bd -literal -offset indent +char **ap, *argv[10], *inputstring; + +for (ap = argv; (*ap = strsep(&inputstring, " \et")) != NULL;) + if (**ap != '\e0') + ++ap; +.Ed +.Sh HISTORY +The +.Fn strsep +function +is intended as a replacement for the +.Fn strtok +function. +While the +.Fn strtok +function should be preferred for portability reasons (it conforms to +.St -ansiC ) +it is unable to handle empty fields, i.e. detect fields delimited by +two adjacent delimiter characters, or to be used for more than a single +string at a time. +The +.Fn strsep +function first appeared in 4.4BSD. diff --git a/lib/libc/string/strsep.c b/lib/libc/string/strsep.c new file mode 100644 index 0000000..18dc398 --- /dev/null +++ b/lib/libc/string/strsep.c @@ -0,0 +1,80 @@ +/*- + * Copyright (c) 1990, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <sys/cdefs.h> +#include <string.h> +#include <stdio.h> + +#if defined(LIBC_SCCS) && !defined(lint) +static char sccsid[] = "@(#)strsep.c 8.1 (Berkeley) 6/4/93"; +#endif /* LIBC_SCCS and not lint */ + +/* + * Get next token from string *stringp, where tokens are possibly-empty + * strings separated by characters from delim. + * + * Writes NULs into the string at *stringp to end tokens. + * delim need not remain constant from call to call. + * On return, *stringp points past the last NUL written (if there might + * be further tokens), or is NULL (if there are definitely no more tokens). + * + * If *stringp is NULL, strsep returns NULL. + */ +char * +strsep(stringp, delim) + register char **stringp; + register const char *delim; +{ + register char *s; + register const char *spanp; + register int c, sc; + char *tok; + + if ((s = *stringp) == NULL) + return (NULL); + for (tok = s;;) { + c = *s++; + spanp = delim; + do { + if ((sc = *spanp++) == c) { + if (c == 0) + s = NULL; + else + s[-1] = 0; + *stringp = s; + return (tok); + } + } while (sc != 0); + } + /* NOTREACHED */ +} diff --git a/lib/libc/string/strspn.3 b/lib/libc/string/strspn.3 new file mode 100644 index 0000000..04c4bdc --- /dev/null +++ b/lib/libc/string/strspn.3 @@ -0,0 +1,79 @@ +.\" Copyright (c) 1990, 1991, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" This code is derived from software contributed to Berkeley by +.\" Chris Torek and the American National Standards Committee X3, +.\" on Information Processing Systems. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. All advertising materials mentioning features or use of this software +.\" must display the following acknowledgement: +.\" This product includes software developed by the University of +.\" California, Berkeley and its contributors. +.\" 4. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" @(#)strspn.3 8.1 (Berkeley) 6/4/93 +.\" +.Dd June 4, 1993 +.Dt STRSPN 3 +.Os +.Sh NAME +.Nm strspn +.Nd span a string +.Sh SYNOPSIS +.Fd #include <string.h> +.Ft size_t +.Fn strspn "const char *s" "const char *charset" +.Sh DESCRIPTION +The +.Fn strcspn +function +spans the initial part of the null-terminated string +.Fa s +as long as the characters from +.Fa s +occur in string +.Fa charset . +.Sh RETURN VALUES +The +.Fn strspn +function +returns the number of characters spanned. +.Sh SEE ALSO +.Xr index 3 , +.Xr memchr 3 , +.Xr rindex 3 , +.Xr strchr 3 , +.Xr strcspn 3 , +.Xr strpbrk 3 , +.Xr strrchr 3 , +.Xr strsep 3 , +.Xr strstr 3 , +.Xr strtok 3 +.Sh STANDARDS +The +.Fn strspn +function +conforms to +.St -ansiC . diff --git a/lib/libc/string/strspn.c b/lib/libc/string/strspn.c new file mode 100644 index 0000000..4676bd4 --- /dev/null +++ b/lib/libc/string/strspn.c @@ -0,0 +1,61 @@ +/* + * Copyright (c) 1989, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#if defined(LIBC_SCCS) && !defined(lint) +static char sccsid[] = "@(#)strspn.c 8.1 (Berkeley) 6/4/93"; +#endif /* LIBC_SCCS and not lint */ + +#include <sys/cdefs.h> +#include <string.h> + +/* + * Span the string s2 (skip characters that are in s2). + */ +size_t +strspn(s1, s2) + const char *s1; + register const char *s2; +{ + register const char *p = s1, *spanp; + register char c, sc; + + /* + * Skip any characters in s2, excluding the terminating \0. + */ +cont: + c = *p++; + for (spanp = s2; (sc = *spanp++) != 0;) + if (sc == c) + goto cont; + return (p - 1 - s1); +} diff --git a/lib/libc/string/strstr.3 b/lib/libc/string/strstr.3 new file mode 100644 index 0000000..7d16b97 --- /dev/null +++ b/lib/libc/string/strstr.3 @@ -0,0 +1,88 @@ +.\" Copyright (c) 1990, 1991, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" This code is derived from software contributed to Berkeley by +.\" Chris Torek and the American National Standards Committee X3, +.\" on Information Processing Systems. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. All advertising materials mentioning features or use of this software +.\" must display the following acknowledgement: +.\" This product includes software developed by the University of +.\" California, Berkeley and its contributors. +.\" 4. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" @(#)strstr.3 8.1 (Berkeley) 6/4/93 +.\" +.Dd June 4, 1993 +.Dt STRSTR 3 +.Os +.Sh NAME +.Nm strstr +.Nd locate a substring in a string +.Sh SYNOPSIS +.Fd #include <string.h> +.Ft char * +.Fn strstr "const char *big" "const char *little" +.Sh DESCRIPTION +The +.Fn strstr +function +locates the first occurrence of the null-terminated string +.Fa little +in the null-terminated string +.Fa big . +If +.Fa little +is the empty string, +.Fn strstr +returns +.Fa big ; +if +.Fa little +occurs nowhere in +.Fa big , +.Fn strstr +returns NULL; +otherwise +.Fn strstr +returns a pointer to the first character of the first occurrence of +.Fa little . +.Sh SEE ALSO +.Xr index 3 , +.Xr memchr 3 , +.Xr rindex 3 , +.Xr strchr 3 , +.Xr strcspn 3 , +.Xr strpbrk 3 , +.Xr strrchr 3 , +.Xr strsep 3 , +.Xr strspn 3 , +.Xr strtok 3 +.Sh STANDARDS +The +.Fn strstr +function +conforms to +.St -ansiC . diff --git a/lib/libc/string/strstr.c b/lib/libc/string/strstr.c new file mode 100644 index 0000000..1f10961 --- /dev/null +++ b/lib/libc/string/strstr.c @@ -0,0 +1,65 @@ +/*- + * Copyright (c) 1990, 1993 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Chris Torek. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#if defined(LIBC_SCCS) && !defined(lint) +static char sccsid[] = "@(#)strstr.c 8.1 (Berkeley) 6/4/93"; +#endif /* LIBC_SCCS and not lint */ + +#include <sys/cdefs.h> +#include <string.h> + +/* + * Find the first occurrence of find in s. + */ +char * +strstr(s, find) + register const char *s, *find; +{ + register char c, sc; + register size_t len; + + if ((c = *find++) != 0) { + len = strlen(find); + do { + do { + if ((sc = *s++) == 0) + return (NULL); + } while (sc != c); + } while (strncmp(s, find, len) != 0); + s--; + } + return ((char *)s); +} diff --git a/lib/libc/string/strtok.3 b/lib/libc/string/strtok.3 new file mode 100644 index 0000000..56db2b0 --- /dev/null +++ b/lib/libc/string/strtok.3 @@ -0,0 +1,110 @@ +.\" Copyright (c) 1988, 1991, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" This code is derived from software contributed to Berkeley by +.\" the American National Standards Committee X3, on Information +.\" Processing Systems. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. All advertising materials mentioning features or use of this software +.\" must display the following acknowledgement: +.\" This product includes software developed by the University of +.\" California, Berkeley and its contributors. +.\" 4. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" @(#)strtok.3 8.2 (Berkeley) 2/3/94 +.\" +.Dd February 3, 1994 +.Dt STRTOK 3 +.Os BSD 3 +.Sh NAME +.Nm strtok +.Nd string tokens +.Sh SYNOPSIS +.Fd #include <string.h> +.Ft char * +.Fn strtok "char *str" "const char *sep" +.Sh DESCRIPTION +.Bf -symbolic +This interface is obsoleted by strsep(3). +.Ef +.Pp +The +.Fn strtok +function +is used to isolate sequential tokens in a null-terminated string, +.Fa str . +These tokens are separated in the string by at least one of the +characters in +.Fa sep . +The first time that +.Fn strtok +is called, +.Fa str +should be specified; subsequent calls, wishing to obtain further tokens +from the same string, should pass a null pointer instead. +The separator string, +.Fa sep , +must be supplied each time, and may change between calls. +.Pp +The +.Fn strtok +function +returns a pointer to the beginning of each subsequent token in the string, +after replacing the token itself with a +.Dv NUL +character. +When no more tokens remain, a null pointer is returned. +.Sh SEE ALSO +.Xr index 3 , +.Xr memchr 3 , +.Xr rindex 3 , +.Xr strchr 3 , +.Xr strcspn 3 , +.Xr strpbrk 3 , +.Xr strrchr 3 , +.Xr strsep 3 , +.Xr strspn 3 , +.Xr strstr 3 +.Sh STANDARDS +The +.Fn strtok +function +conforms to +.St -ansiC . +.Sh BUGS +There is no way to get tokens from multiple strings simultaneously. +.Pp +The System V +.Fn strtok , +if handed a string containing only delimiter characters, +will not alter the next starting point, so that a call to +.Fn strtok +with a different (or empty) delimiter string +may return a +.Pf non- Dv NULL +value. +Since this implementation always alters the next starting point, +such a sequence of calls would always return +.Dv NULL . diff --git a/lib/libc/string/strtok.c b/lib/libc/string/strtok.c new file mode 100644 index 0000000..9151cf2 --- /dev/null +++ b/lib/libc/string/strtok.c @@ -0,0 +1,90 @@ +/* + * Copyright (c) 1988, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#if defined(LIBC_SCCS) && !defined(lint) +static char sccsid[] = "@(#)strtok.c 8.1 (Berkeley) 6/4/93"; +#endif /* LIBC_SCCS and not lint */ + +#include <stddef.h> +#include <string.h> + +char * +strtok(s, delim) + register char *s; + register const char *delim; +{ + register char *spanp; + register int c, sc; + char *tok; + static char *last; + + + if (s == NULL && (s = last) == NULL) + return (NULL); + + /* + * Skip (span) leading delimiters (s += strspn(s, delim), sort of). + */ +cont: + c = *s++; + for (spanp = (char *)delim; (sc = *spanp++) != 0;) { + if (c == sc) + goto cont; + } + + if (c == 0) { /* no non-delimiter characters */ + last = NULL; + return (NULL); + } + tok = s - 1; + + /* + * Scan token (scan for delimiters: s += strcspn(s, delim), sort of). + * Note that delim must have one NUL; we stop if we see that, too. + */ + for (;;) { + c = *s++; + spanp = (char *)delim; + do { + if ((sc = *spanp++) == c) { + if (c == 0) + s = NULL; + else + s[-1] = 0; + last = s; + return (tok); + } + } while (sc != 0); + } + /* NOTREACHED */ +} diff --git a/lib/libc/string/strxfrm.3 b/lib/libc/string/strxfrm.3 new file mode 100644 index 0000000..ccd8bcb --- /dev/null +++ b/lib/libc/string/strxfrm.3 @@ -0,0 +1,68 @@ +.\" Copyright (c) 1990, 1991, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" This code is derived from software contributed to Berkeley by +.\" Chris Torek and the American National Standards Committee X3, +.\" on Information Processing Systems. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. All advertising materials mentioning features or use of this software +.\" must display the following acknowledgement: +.\" This product includes software developed by the University of +.\" California, Berkeley and its contributors. +.\" 4. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" @(#)strxfrm.3 8.1 (Berkeley) 6/4/93 +.\" +.Dd June 4, 1993 +.Dt STRXFRM 3 +.Os +.Sh NAME +.Nm strxfrm +.Nd transform a string under locale +.Sh SYNOPSIS +.Fd #include <string.h> +.Ft size_t +.Fn strxfrm "char *dst" "const char *src" "size_t n" +.Sh DESCRIPTION +The +.Fn strxfrm +function +does something horrible (see +.Tn ANSI +standard). +In this implementation it just copies. +.Sh SEE ALSO +.Xr bcmp 3 , +.Xr memcmp 3 , +.\" .Xr setlocale 3 , +.Xr strcasecmp 3 , +.Xr strcmp 3 , +.Xr strcoll 3 +.Sh STANDARDS +The +.Fn strxfrm +function +conforms to +.St -ansiC . diff --git a/lib/libc/string/strxfrm.c b/lib/libc/string/strxfrm.c new file mode 100644 index 0000000..0d6fcb4 --- /dev/null +++ b/lib/libc/string/strxfrm.c @@ -0,0 +1,67 @@ +/*- + * Copyright (c) 1990, 1993 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Chris Torek. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#if defined(LIBC_SCCS) && !defined(lint) +static char sccsid[] = "@(#)strxfrm.c 8.1 (Berkeley) 6/4/93"; +#endif /* LIBC_SCCS and not lint */ + +#include <sys/cdefs.h> +#include <string.h> + +/* + * Transform src, storing the result in dst, such that + * strcmp() on transformed strings returns what strcoll() + * on the original untransformed strings would return. + */ +size_t +strxfrm(dst, src, n) + register char *dst; + const char *src; + size_t n; +{ + register size_t srclen, copysize; + + /* + * Since locales are unimplemented, this is just a copy. + */ + srclen = strlen(src); + if (n != 0) { + copysize = srclen < n ? srclen : n - 1; + (void)memcpy(dst, src, copysize); + dst[copysize] = 0; + } + return (srclen); +} diff --git a/lib/libc/string/swab.3 b/lib/libc/string/swab.3 new file mode 100644 index 0000000..70a9205 --- /dev/null +++ b/lib/libc/string/swab.3 @@ -0,0 +1,65 @@ +.\" Copyright (c) 1990, 1991, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. All advertising materials mentioning features or use of this software +.\" must display the following acknowledgement: +.\" This product includes software developed by the University of +.\" California, Berkeley and its contributors. +.\" 4. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" @(#)swab.3 8.1 (Berkeley) 6/4/93 +.\" +.Dd June 4, 1993 +.Dt SWAB 3 +.Os +.Sh NAME +.Nm swab +.Nd swap adjacent bytes +.Sh SYNOPSIS +.Fd #include <string.h> +.Ft void +.Fn swab "const void *src" "void *dst" "size_t len" +.Sh DESCRIPTION +The function +.Fn swab +copies +.Fa len +bytes from the location referenced by +.Fa src +to the location referenced by +.Fa dst , +swapping adjacent bytes. +.Pp +The argument +.Fa len +must be even number. +.Sh SEE ALSO +.Xr bzero 3 , +.Xr memset 3 +.Sh HISTORY +A +.Fn swab +function appeared in +.At v7 . diff --git a/lib/libc/string/swab.c b/lib/libc/string/swab.c new file mode 100644 index 0000000..a4fc3b9 --- /dev/null +++ b/lib/libc/string/swab.c @@ -0,0 +1,65 @@ +/* + * Copyright (c) 1988, 1993 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Jeffrey Mogul. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#if defined(LIBC_SCCS) && !defined(lint) +static char sccsid[] = "@(#)swab.c 8.1 (Berkeley) 6/4/93"; +#endif /* LIBC_SCCS and not lint */ + +#include <string.h> + +void +swab(from, to, len) + const void *from; + void *to; + size_t len; +{ + register unsigned long temp; + register int n; + register char *fp, *tp; + + n = (len >> 1) + 1; + fp = (char *)from; + tp = (char *)to; +#define STEP temp = *fp++,*tp++ = *fp++,*tp++ = temp + /* round to multiple of 8 */ + while ((--n) & 07) + STEP; + n >>= 3; + while (--n >= 0) { + STEP; STEP; STEP; STEP; + STEP; STEP; STEP; STEP; + } +} |
