diff options
Diffstat (limited to 'usr.bin/mkstr')
| -rw-r--r-- | usr.bin/mkstr/Makefile | 8 | ||||
| -rw-r--r-- | usr.bin/mkstr/mkstr.1 | 130 | ||||
| -rw-r--r-- | usr.bin/mkstr/mkstr.c | 333 |
3 files changed, 471 insertions, 0 deletions
diff --git a/usr.bin/mkstr/Makefile b/usr.bin/mkstr/Makefile new file mode 100644 index 0000000..b4e3620 --- /dev/null +++ b/usr.bin/mkstr/Makefile @@ -0,0 +1,8 @@ +# @(#)Makefile 8.1 (Berkeley) 6/6/93 +# $FreeBSD$ + +PROG= mkstr + +WARNS?= 2 + +.include <bsd.prog.mk> diff --git a/usr.bin/mkstr/mkstr.1 b/usr.bin/mkstr/mkstr.1 new file mode 100644 index 0000000..bc5f7115 --- /dev/null +++ b/usr.bin/mkstr/mkstr.1 @@ -0,0 +1,130 @@ +.\" Copyright (c) 1980, 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. +.\" 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. +.\" +.\" @(#)mkstr.1 8.1 (Berkeley) 6/6/93 +.\" $FreeBSD$ +.\" +.Dd November 1, 2002 +.Dt MKSTR 1 +.Os +.Sh NAME +.Nm mkstr +.Nd create an error message file by massaging C source +.Sh SYNOPSIS +.Nm +.Op Fl +.Ar mesgfile +.Ar prefix Ar +.Sh DESCRIPTION +The +.Nm +utility creates a file containing error messages extracted from C source, +and restructures the same C source, to utilize the created error message +file. +The intent of +.Nm +was to reduce the size of large programs and +reduce swapping (see +.Sx BUGS +section below). +.Pp +The +.Nm +utility processes each of the specified files, +placing a restructured version of the input in a file whose name +consists of the specified +.Ar prefix +and the original name. +A typical usage of +.Nm +is +.Pp +.Dl "mkstr pistrings xx *.c" +.Pp +This command causes all the error messages from the C source +files in the current directory to be placed in the file +.Pa pistrings +and restructured copies of the sources to be placed in +files whose names are prefixed with +.Dq Li xx . +.Pp +Options: +.Bl -tag -width indent +.It Fl +Error messages are placed at the end of the specified +message file for recompiling part of a large +.Nm Ns ed +program. +.El +.Pp +The +.Nm +utility finds error messages in the source by +searching for the string +.Sq Li error(" +in the input stream. +Each time it occurs, the C string starting at the +.Ql \&" +is stored +in the message file followed by a null character and a new-line character; +The new source is restructured with +.Xr lseek 2 +pointers into the error message file for retrieval. +.Bd -literal -offset indent +char efilname = "/usr/lib/pi_strings"; +int efil = -1; + +error(a1, a2, a3, a4) +{ + char buf[256]; + + if (efil < 0) { + efil = open(efilname, 0); + if (efil < 0) + err(1, "%s", efilname); + } + if (lseek(efil, (off_t)a1, SEEK_SET) < 0 || + read(efil, buf, 256) <= 0) + err(1, "%s", efilname); + printf(buf, a2, a3, a4); +} +.Ed +.Sh SEE ALSO +.Xr gencat 1 , +.Xr xstr 1 , +.Xr lseek 2 +.Sh HISTORY +An +.Nm +utility appeared in +.Bx 3.0 . +.Sh BUGS +The +.Nm +utility was intended for the limited architecture of the PDP 11 family. +Very few programs actually use it. +The memory savings are negligible in modern computers. diff --git a/usr.bin/mkstr/mkstr.c b/usr.bin/mkstr/mkstr.c new file mode 100644 index 0000000..9f64d0cc --- /dev/null +++ b/usr.bin/mkstr/mkstr.c @@ -0,0 +1,333 @@ +/* + * Copyright (c) 1980, 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. + * 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. + */ + +#ifndef lint +static const char copyright[] = +"@(#) Copyright (c) 1980, 1993\n\ + The Regents of the University of California. All rights reserved.\n"; +#endif /* not lint */ + +#ifndef lint +#if 0 +static char sccsid[] = "@(#)mkstr.c 8.1 (Berkeley) 6/6/93"; +#endif +#endif /* not lint */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <err.h> +#include <errno.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#define ungetchar(c) ungetc(c, stdin) + +/* + * mkstr - create a string error message file by massaging C source + * + * Bill Joy UCB August 1977 + * + * Modified March 1978 to hash old messages to be able to recompile + * without addding messages to the message file (usually) + * + * Based on an earlier program conceived by Bill Joy and Chuck Haley + * + * Program to create a string error message file + * from a group of C programs. Arguments are the name + * of the file where the strings are to be placed, the + * prefix of the new files where the processed source text + * is to be placed, and the files to be processed. + * + * The program looks for 'error("' in the source stream. + * Whenever it finds this, the following characters from the '"' + * to a '"' are replaced by 'seekpt' where seekpt is a + * pointer into the error message file. + * If the '(' is not immediately followed by a '"' no change occurs. + * + * The optional '-' causes strings to be added at the end of the + * existing error message file for recompilation of single routines. + */ + +FILE *mesgread, *mesgwrite; +char name[100], *np; + +void copystr(void); +int fgetNUL(char *, int, FILE *); +unsigned hashit(char *, int, unsigned); +void inithash(void); +int match(const char *); +int octdigit(char); +void process(void); +void usage(void); + +int +main(int argc, char *argv[]) +{ + char addon = 0; + size_t namelen; + + argc--, argv++; + if (argc > 1 && argv[0][0] == '-') + addon++, argc--, argv++; + if (argc < 3) + usage(); + mesgwrite = fopen(argv[0], addon ? "a" : "w"); + if (mesgwrite == NULL) + err(1, "%s", argv[0]); + mesgread = fopen(argv[0], "r"); + if (mesgread == NULL) + err(1, "%s", argv[0]); + inithash(); + argc--, argv++; + namelen = strlcpy(name, argv[0], sizeof(name)); + if (namelen >= sizeof(name)) { + errno = ENAMETOOLONG; + err(1, "%s", argv[0]); + } + np = name + namelen; + argc--, argv++; + do { + if (strlcpy(np, argv[0], sizeof(name) - namelen) >= + sizeof(name) - namelen) { + errno = ENAMETOOLONG; + err(1, "%s%s", name, argv[0]); + } + if (freopen(name, "w", stdout) == NULL) + err(1, "%s", name); + if (freopen(argv[0], "r", stdin) == NULL) + err(1, "%s", argv[0]); + process(); + argc--, argv++; + } while (argc > 0); + exit(0); +} + +void +usage(void) +{ + fprintf(stderr, "usage: mkstr [-] mesgfile prefix file ...\n"); + exit(1); +} + +void +process(void) +{ + int c; + + for (;;) { + c = getchar(); + if (c == EOF) + return; + if (c != 'e') { + putchar(c); + continue; + } + if (match("error(")) { + printf("error("); + c = getchar(); + if (c != '"') + putchar(c); + else + copystr(); + } + } +} + +int +match(const char *ocp) +{ + const char *cp; + int c; + + for (cp = ocp + 1; *cp; cp++) { + c = getchar(); + if (c != *cp) { + while (ocp < cp) + putchar(*ocp++); + ungetchar(c); + return (0); + } + } + return (1); +} + +void +copystr(void) +{ + int c, ch; + char buf[512]; + char *cp = buf; + + for (;;) { + if (cp == buf + sizeof(buf) - 2) + errx(1, "message too long"); + c = getchar(); + if (c == EOF) + break; + switch (c) { + + case '"': + *cp++ = 0; + goto out; + case '\\': + c = getchar(); + switch (c) { + + case 'b': + c = '\b'; + break; + case 't': + c = '\t'; + break; + case 'r': + c = '\r'; + break; + case 'n': + c = '\n'; + break; + case '\n': + continue; + case 'f': + c = '\f'; + break; + case '0': + c = 0; + break; + case '\\': + break; + default: + if (!octdigit(c)) + break; + c -= '0'; + ch = getchar(); + if (!octdigit(ch)) + break; + c <<= 7, c += ch - '0'; + ch = getchar(); + if (!octdigit(ch)) + break; + c <<= 3, c+= ch - '0', ch = -1; + break; + } + } + *cp++ = c; + } +out: + *cp = 0; + printf("%d", hashit(buf, 1, 0)); +} + +int +octdigit(char c) +{ + + return (c >= '0' && c <= '7'); +} + +void +inithash(void) +{ + char buf[512]; + int mesgpt = 0; + + rewind(mesgread); + while (fgetNUL(buf, sizeof buf, mesgread) != 0) { + hashit(buf, 0, mesgpt); + mesgpt += strlen(buf) + 2; + } +} + +#define NBUCKETS 511 + +struct hash { + long hval; + unsigned hpt; + struct hash *hnext; +} *bucket[NBUCKETS]; + +unsigned +hashit(char *str, int really, unsigned fakept) +{ + int i; + struct hash *hp; + char buf[512]; + long hashval = 0; + char *cp; + + if (really) + fflush(mesgwrite); + for (cp = str; *cp;) + hashval = (hashval << 1) + *cp++; + i = hashval % NBUCKETS; + if (i < 0) + i += NBUCKETS; + if (really != 0) + for (hp = bucket[i]; hp != 0; hp = hp->hnext) + if (hp->hval == hashval) { + fseek(mesgread, (long) hp->hpt, 0); + fgetNUL(buf, sizeof buf, mesgread); +/* + fprintf(stderr, "Got (from %d) %s\n", hp->hpt, buf); +*/ + if (strcmp(buf, str) == 0) + break; + } + if (!really || hp == 0) { + hp = (struct hash *) calloc(1, sizeof *hp); + if (hp == NULL) + err(1, NULL); + hp->hnext = bucket[i]; + hp->hval = hashval; + hp->hpt = really ? ftell(mesgwrite) : fakept; + if (really) { + fwrite(str, sizeof (char), strlen(str) + 1, mesgwrite); + fwrite("\n", sizeof (char), 1, mesgwrite); + } + bucket[i] = hp; + } +/* + fprintf(stderr, "%s hashed to %ld at %d\n", str, hp->hval, hp->hpt); +*/ + return (hp->hpt); +} + +int +fgetNUL(char *obuf, int rmdr, FILE *file) +{ + int c; + char *buf = obuf; + + while (--rmdr > 0 && (c = getc(file)) != 0 && c != EOF) + *buf++ = c; + *buf++ = 0; + getc(file); + return ((feof(file) || ferror(file)) ? 0 : 1); +} |
