From 529ca8a4dfc065064ecc69d90d84923a08618923 Mon Sep 17 00:00:00 2001 From: Philip Homburg Date: Thu, 22 Jun 2006 11:47:18 +0000 Subject: [PATCH] Added strlcat and strlcpy. --- include/string.h | 2 ++ lib/other/Makefile.in | 2 ++ lib/other/strlcat.c | 80 +++++++++++++++++++++++++++++++++++++++++++ lib/other/strlcpy.c | 80 +++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 164 insertions(+) create mode 100644 lib/other/strlcat.c create mode 100644 lib/other/strlcpy.c diff --git a/include/string.h b/include/string.h index 5594922b2..725af17ed 100755 --- a/include/string.h +++ b/include/string.h @@ -60,6 +60,8 @@ _PROTOTYPE( int strcasecmp, (const char *_s1, const char *_s2) ); _PROTOTYPE( int strncasecmp, (const char *_s1, const char *_s2, size_t _len) ); _PROTOTYPE( size_t strnlen, (const char *_s, size_t _n) ); +_PROTOTYPE( size_t strlcat, (char *_dst, const char *_src, size_t _siz) ); +_PROTOTYPE( size_t strlcpy, (char *_dst, const char *_src, size_t _siz) ); #endif #endif /* _STRING_H */ diff --git a/lib/other/Makefile.in b/lib/other/Makefile.in index bf8496f86..05ae64f23 100644 --- a/lib/other/Makefile.in +++ b/lib/other/Makefile.in @@ -65,6 +65,8 @@ libc_FILES=" \ settimeofday.c \ stderr.c \ strdup.c \ + strlcat.c \ + strlcpy.c \ strtok_r.c \ swab.c \ sys_eniop.c \ diff --git a/lib/other/strlcat.c b/lib/other/strlcat.c new file mode 100644 index 000000000..cadce9b82 --- /dev/null +++ b/lib/other/strlcat.c @@ -0,0 +1,80 @@ +/* + * Copyright (c) 1998 Todd C. Miller + * 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. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED ``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 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 *rcsid = "$OpenBSD: strlcat.c,v 1.2 1999/06/17 16:28:58 millert Exp $"; +#endif /* LIBC_SCCS and not lint */ +#ifndef lint +static const char rcsid[] = + "$FreeBSD: src/lib/libc/string/strlcat.c,v 1.2.4.2 2001/07/09 23:30:06 obrien Exp $"; +#endif + +#define _MINIX_SOURCE + +#include +#include + +/* + * Appends src to string dst of size siz (unlike strncat, siz is the + * full size of dst, not space left). At most siz-1 characters + * will be copied. Always NUL terminates (unless siz <= strlen(dst)). + * Returns strlen(initial dst) + strlen(src); if retval >= siz, + * truncation occurred. + */ +size_t strlcat(dst, src, siz) + char *dst; + const char *src; + size_t siz; +{ + register char *d = dst; + register const char *s = src; + register size_t n = siz; + size_t dlen; + + /* Find the end of dst and adjust bytes left but don't go past end */ + while (n-- != 0 && *d != '\0') + d++; + dlen = d - dst; + n = siz - dlen; + + if (n == 0) + return(dlen + strlen(s)); + while (*s != '\0') { + if (n != 1) { + *d++ = *s; + n--; + } + s++; + } + *d = '\0'; + + return(dlen + (s - src)); /* count does not include NUL */ +} + +/* + * $PchId: strlcat.c,v 1.1 2004/11/02 12:29:23 philip Exp philip $ + */ diff --git a/lib/other/strlcpy.c b/lib/other/strlcpy.c new file mode 100644 index 000000000..f4e9b00f5 --- /dev/null +++ b/lib/other/strlcpy.c @@ -0,0 +1,80 @@ +/* $OpenBSD: strlcpy.c,v 1.4 1999/05/01 18:56:41 millert Exp $ */ + +/* + * Copyright (c) 1998 Todd C. Miller + * 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. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED ``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 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) +#if 0 +static char *rcsid = "$OpenBSD: strlcpy.c,v 1.4 1999/05/01 18:56:41 millert Exp $"; +#endif +#endif /* LIBC_SCCS and not lint */ +#ifndef lint +static const char rcsid[] = + "$FreeBSD: src/lib/libc/string/strlcpy.c,v 1.2.4.1 2001/07/09 23:30:06 obrien Exp $"; +#endif + +#define _MINIX_SOURCE + +#include +#include + +/* + * Copy src to string dst of size siz. At most siz-1 characters + * will be copied. Always NUL terminates (unless siz == 0). + * Returns strlen(src); if retval >= siz, truncation occurred. + */ +size_t strlcpy(dst, src, siz) + char *dst; + const char *src; + size_t siz; +{ + register char *d = dst; + register const char *s = src; + register size_t n = siz; + + /* Copy as many bytes as will fit */ + if (n != 0 && --n != 0) { + do { + if ((*d++ = *s++) == 0) + break; + } while (--n != 0); + } + + /* Not enough room in dst, add NUL and traverse rest of src */ + if (n == 0) { + if (siz != 0) + *d = '\0'; /* NUL-terminate dst */ + while (*s++) + ; + } + + return(s - src - 1); /* count does not include NUL */ +} + +/* + * $PchId: strlcpy.c,v 1.1 2004/11/02 12:29:53 philip Exp $ + */