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author | Ingo Schwarze <schwarze@openbsd.org> | 2020-06-15 20:49:57 +0000 |
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committer | Ingo Schwarze <schwarze@openbsd.org> | 2020-06-15 20:49:57 +0000 |
commit | 70585fe1f0d840a51d660d9a7f619427b81015a5 (patch) | |
tree | 749be48427c7e3130f700cc610b9aa67ef64b713 /compat_strlcat.c | |
parent | 47f0d1b75fcac2de95e0f1de7d5d825edb505644 (diff) | |
download | mandoc-70585fe1f0d840a51d660d9a7f619427b81015a5.tar.gz mandoc-70585fe1f0d840a51d660d9a7f619427b81015a5.tar.zst mandoc-70585fe1f0d840a51d660d9a7f619427b81015a5.zip |
sync with OpenBSD, no functional change intended
Diffstat (limited to 'compat_strlcat.c')
-rw-r--r-- | compat_strlcat.c | 50 |
1 files changed, 25 insertions, 25 deletions
diff --git a/compat_strlcat.c b/compat_strlcat.c index a5fa75fd..dc0ec5e7 100644 --- a/compat_strlcat.c +++ b/compat_strlcat.c @@ -1,8 +1,8 @@ -/* $Id: compat_strlcat.c,v 1.5 2020/06/15 01:37:15 schwarze Exp $ */ -/* $OpenBSD: strlcat.c,v 1.13 2005/08/08 08:05:37 espie Exp $ */ +/* $Id: compat_strlcat.c,v 1.6 2020/06/15 20:49:57 schwarze Exp $ */ +/* $OpenBSD: strlcat.c,v 1.19 2019/01/25 00:19:25 millert Exp $ */ /* - * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com> + * Copyright (c) 1998, 2015 Todd C. Miller <millert@openbsd.org> * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above @@ -22,36 +22,36 @@ #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 <= strlen(dst)). - * Returns strlen(src) + MIN(siz, strlen(initial dst)). - * If retval >= siz, truncation occurred. + * Appends src to string dst of size dsize (unlike strncat, dsize is the + * full size of dst, not space left). At most dsize-1 characters + * will be copied. Always NUL terminates (unless dsize <= strlen(dst)). + * Returns strlen(src) + MIN(dsize, strlen(initial dst)). + * If retval >= dsize, truncation occurred. */ size_t -strlcat(char *dst, const char *src, size_t siz) +strlcat(char *dst, const char *src, size_t dsize) { - char *d = dst; - const char *s = src; - size_t n = siz; + const char *odst = dst; + const char *osrc = src; + size_t n = dsize; 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; + /* Find the end of dst and adjust bytes left but don't go past end. */ + while (n-- != 0 && *dst != '\0') + dst++; + dlen = dst - odst; + n = dsize - dlen; - if (n == 0) - return(dlen + strlen(s)); - while (*s != '\0') { - if (n != 1) { - *d++ = *s; + if (n-- == 0) + return(dlen + strlen(src)); + while (*src != '\0') { + if (n != 0) { + *dst++ = *src; n--; } - s++; + src++; } - *d = '\0'; + *dst = '\0'; - return(dlen + (s - src)); /* count does not include NUL */ + return(dlen + (src - osrc)); /* count does not include NUL */ } |