Annotation of mandoc/compat_strlcpy.c, Revision 1.1
1.1 ! kristaps 1: #ifdef HAVE_STRLCPY
! 2:
! 3: int dummy;
! 4:
! 5: #else
! 6:
! 7: /* $OpenBSD: strlcpy.c,v 1.11 2006/05/05 15:27:38 millert Exp $ */
! 8:
! 9: /*
! 10: * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
! 11: *
! 12: * Permission to use, copy, modify, and distribute this software for any
! 13: * purpose with or without fee is hereby granted, provided that the above
! 14: * copyright notice and this permission notice appear in all copies.
! 15: *
! 16: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
! 17: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
! 18: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
! 19: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
! 20: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
! 21: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
! 22: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
! 23: */
! 24:
! 25: #include <sys/types.h>
! 26: #include <string.h>
! 27:
! 28: /*
! 29: * Copy src to string dst of size siz. At most siz-1 characters
! 30: * will be copied. Always NUL terminates (unless siz == 0).
! 31: * Returns strlen(src); if retval >= siz, truncation occurred.
! 32: */
! 33: size_t
! 34: strlcpy(char *dst, const char *src, size_t siz)
! 35: {
! 36: char *d = dst;
! 37: const char *s = src;
! 38: size_t n = siz;
! 39:
! 40: /* Copy as many bytes as will fit */
! 41: if (n != 0) {
! 42: while (--n != 0) {
! 43: if ((*d++ = *s++) == '\0')
! 44: break;
! 45: }
! 46: }
! 47:
! 48: /* Not enough room in dst, add NUL and traverse rest of src */
! 49: if (n == 0) {
! 50: if (siz != 0)
! 51: *d = '\0'; /* NUL-terminate dst */
! 52: while (*s++)
! 53: ;
! 54: }
! 55:
! 56: return(s - src - 1); /* count does not include NUL */
! 57: }
! 58:
! 59: #endif
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