diff options
| -rw-r--r-- | sys/conf/files | 1 | ||||
| -rw-r--r-- | sys/libkern/strnlen.c | 42 | ||||
| -rw-r--r-- | sys/sys/libkern.h | 1 |
3 files changed, 44 insertions, 0 deletions
diff --git a/sys/conf/files b/sys/conf/files index 0633223..67c01bc 100644 --- a/sys/conf/files +++ b/sys/conf/files @@ -2553,6 +2553,7 @@ libkern/strlcpy.c standard libkern/strlen.c standard libkern/strncmp.c standard libkern/strncpy.c standard +libkern/strnlen.c standard libkern/strsep.c standard libkern/strspn.c standard libkern/strstr.c standard diff --git a/sys/libkern/strnlen.c b/sys/libkern/strnlen.c new file mode 100644 index 0000000..805aee8 --- /dev/null +++ b/sys/libkern/strnlen.c @@ -0,0 +1,42 @@ +/*- + * Copyright (c) 2009 David Schultz <das@FreeBSD.org> + * 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. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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> +__FBSDID("$FreeBSD$"); + +#include <sys/libkern.h> + +size_t +strnlen(const char *s, size_t maxlen) +{ + size_t len; + + for (len = 0; len < maxlen; len++, s++) { + if (!*s) + break; + } + return (len); +} diff --git a/sys/sys/libkern.h b/sys/sys/libkern.h index a6e2acd..65405d0 100644 --- a/sys/sys/libkern.h +++ b/sys/sys/libkern.h @@ -116,6 +116,7 @@ size_t strlen(const char *); int strncasecmp(const char *, const char *, size_t); int strncmp(const char *, const char *, size_t); char *strncpy(char * __restrict, const char * __restrict, size_t); +size_t strnlen(const char *, size_t); char *strsep(char **, const char *delim); size_t strspn(const char *, const char *); char *strstr(const char *, const char *); |
