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	strlcpy.c - sdhcp - simple dhcp client
	git clone git://git.codemadness.org/sdhcp
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	---
	strlcpy.c (966B)
	---
	1 /* Taken from OpenBSD */
	2 #include <sys/types.h>
	3 #include <string.h>
	4 #include "../util.h"
	5
	6 /*
	7 * Copy src to string dst of size siz. At most siz-1 characters
	8 * will be copied. Always NUL terminates (unless siz == 0).
	9 * Returns strlen(src); if retval >= siz, truncation occurred.
	10 */
	11 size_t
	12 strlcpy(char dst, const char src, size_t siz)
	13 {
	14 char *d = dst;
	15 const char *s = src;
	16 size_t n = siz;
	17 /* Copy as many bytes as will fit */
	18 if (n != 0) {
	19 while (--n != 0) {
	20 if ((d++ = s++) == '\0')
	21 break;
	22 }
	23 }
	24 /* Not enough room in dst, add NUL and traverse rest of src */
	25 if (n == 0) {
	26 if (siz != 0)
	27 d = '\0'; / NUL-terminate dst */
	28 while (*s++)
	29 ;
	30 }
	31 return(s - src - 1); /* count does not include NUL */
	32 }