Index: branches/chucko/i386/klibc/strlcpy.c =================================================================== --- branches/chucko/i386/klibc/strlcpy.c (revision 2290) +++ branches/chucko/i386/klibc/strlcpy.c (revision 2291) @@ -2,26 +2,54 @@ * strlcpy.c */ +/* Use OpenBSD heritage source -- Chucko 2014-01-06 */ + +/*- + * Copyright (c) 1998 Todd C. Miller + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + #include #include -size_t strlcpy(char *dst, const char *src, size_t size) +/* + * 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(char * __restrict dst, const char * __restrict src, size_t siz) { - size_t bytes = 0; - char *q = dst; - const char *p = src; - char ch; + char *d = dst; + const char *s = src; + size_t n = siz; - while ((ch = *p++)) { - if (bytes + 1 < size) - *q++ = ch; + /* Copy as many bytes as will fit */ + if (n != 0) { + while (--n != 0) { + if ((*d++ = *s++) == '\0') + break; + } + } - bytes++; - } + /* 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++) + ; + } - /* If size == 0 there is no space for a final null... */ - if (size) - *q = '\0'; - - return bytes; + return(s - src - 1); /* count does not include NUL */ }