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       ---
       util.c (770B)
       ---
            1 #include <stdio.h>
            2 #include <string.h>
            3 #include <stdlib.h>
            4 #include <sys/types.h>
            5 
            6 #include "util.h"
            7 
            8 /*
            9  * Taken from OpenBSD.
           10  * Copy src to string dst of size siz.  At most siz-1 characters
           11  * will be copied.  Always NUL terminates (unless siz == 0).
           12  * Returns strlen(src); if retval >= siz, truncation occurred.
           13  */
           14 size_t
           15 strlcpy(char *dst, const char *src, size_t siz) {
           16         char *d = dst;
           17         const char *s = src;
           18         size_t n = siz;
           19 
           20         /* copy as many bytes as will fit */
           21         if (n != 0) {
           22                 while (--n != 0) {
           23                         if ((*d++ = *s++) == '\0')
           24                                 break;
           25                 }
           26         }
           27         /* not enough room in dst, add NUL and traverse rest of src */
           28         if (n == 0) {
           29                 if (siz != 0)
           30                                 *d = '\0'; /* NUL-terminate dst */
           31                 while (*s++)
           32                         ;
           33         }
           34         return(s - src - 1); /* count does not include NUL */
           35 }