diff options
author | Damien Miller <djm@mindrot.org> | 1999-11-22 13:57:07 +1100 |
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committer | Damien Miller <djm@mindrot.org> | 1999-11-22 13:57:07 +1100 |
commit | b3ca3aa12f8248c2d9e23f15a46e0f3c97397e54 (patch) | |
tree | 7833695d2f077b965b02a5b9927be50456d172d7 /bsd-strlcat.c | |
parent | a75cb9666237b3479471238eb26b39872b9858e0 (diff) |
- Added OpenBSD bsd-strlcat.c, created bsd-strlcat.h
- Added timersum() macro
- Tidy RCSIDs of bsd-*.c
Diffstat (limited to 'bsd-strlcat.c')
-rw-r--r-- | bsd-strlcat.c | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/bsd-strlcat.c b/bsd-strlcat.c new file mode 100644 index 00000000..10ad9e71 --- /dev/null +++ b/bsd-strlcat.c @@ -0,0 +1,76 @@ +/* $OpenBSD: strlcat.c,v 1.2 1999/06/17 16:28:58 millert Exp $ */ + +/* + * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com> + * 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. + */ + +#include "config.h" +#ifndef HAVE_STRLCAT + +#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 */ + +#include <sys/types.h> +#include <string.h> + +/* + * 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 == 0). + * Returns 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 (*d != '\0' && n-- != 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 */ +} + +#endif /* !HAVE_STRLCAT */ |