UNIX 7th Ed. - /usr/src/libc/gen/strncpy.c

   1: /*
   2:  * Copy s2 to s1, truncating or null-padding to always copy n bytes
   3:  * return s1
   4:  */
   5: 
   6: char *
   7: strncpy(s1, s2, n)
   8: register char *s1, *s2;
   9: {
  10:     register i;
  11:     register char *os1;
  12: 
  13:     os1 = s1;
  14:     for (i = 0; i < n; i++)
  15:         if ((*s1++ = *s2++) == '\0') {
  16:             while (++i < n)
  17:                 *s1++ = '\0';
  18:             return(os1);
  19:         }
  20:     return(os1);
  21: }

Defined functions