mirror of
https://github.com/0intro/wmii
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48 lines
1.6 KiB
C
48 lines
1.6 KiB
C
/*
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* Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <sys/types.h>
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#include "cext.h"
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/*
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* Copy src to string dst of size siz. At most siz-1 characters
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* will be copied. Always NUL terminates (unless siz == 0).
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* Returns strlen(src); if retval >= siz, truncation occurred.
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*/
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unsigned int
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cext_strlcpy(char *dst, const char *src, unsigned int siz)
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{
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register char *d = dst;
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register const char *s = src;
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register unsigned int n = siz;
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/* Copy as many bytes as will fit */
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if(n != 0 && --n != 0) {
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do {
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if((*d++ = *s++) == 0)
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break;
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} while(--n != 0);
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}
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/* Not enough room in dst, add NUL and traverse rest of src */
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if(n == 0) {
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if(siz != 0)
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*d = '\0'; /* NUL-terminate dst */
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while(*s++);
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}
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return (s - src - 1); /* count does not include NUL */
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}
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