Annotation of embedaddon/pimd/libite/strlcpy.c, revision 1.1
1.1 ! misho 1: /* $OpenBSD: strlcpy.c,v 1.12 2015/01/15 03:54:12 millert Exp $ */
! 2:
! 3: /*
! 4: * Copyright (c) 1998, 2015 Todd C. Miller <Todd.Miller@courtesan.com>
! 5: *
! 6: * Permission to use, copy, modify, and distribute this software for any
! 7: * purpose with or without fee is hereby granted, provided that the above
! 8: * copyright notice and this permission notice appear in all copies.
! 9: *
! 10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
! 11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
! 12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
! 13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
! 14: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
! 15: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
! 16: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
! 17: */
! 18:
! 19: #include <sys/types.h>
! 20: #include <string.h>
! 21:
! 22: #ifndef strlcpy
! 23: /*
! 24: * Copy string src to buffer dst of size dsize. At most dsize-1
! 25: * chars will be copied. Always NUL terminates (unless dsize == 0).
! 26: * Returns strlen(src); if retval >= dsize, truncation occurred.
! 27: */
! 28: size_t
! 29: strlcpy(char *dst, const char *src, size_t dsize)
! 30: {
! 31: const char *osrc = src;
! 32: size_t nleft = dsize;
! 33:
! 34: /* Copy as many bytes as will fit. */
! 35: if (nleft != 0) {
! 36: while (--nleft != 0) {
! 37: if ((*dst++ = *src++) == '\0')
! 38: break;
! 39: }
! 40: }
! 41:
! 42: /* Not enough room in dst, add NUL and traverse rest of src. */
! 43: if (nleft == 0) {
! 44: if (dsize != 0)
! 45: *dst = '\0'; /* NUL-terminate dst */
! 46: while (*src++)
! 47: ;
! 48: }
! 49:
! 50: return(src - osrc - 1); /* count does not include NUL */
! 51: }
! 52: #endif
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