runestrncpy.c (1034B)
1 /* 2 * The authors of this software are Rob Pike and Ken Thompson. 3 * Copyright (c) 2002 by Lucent Technologies. 4 * Permission to use, copy, modify, and distribute this software for any 5 * purpose without fee is hereby granted, provided that this entire notice 6 * is included in all copies of any software which is or includes a copy 7 * or modification of this software and in all copies of the supporting 8 * documentation for such software. 9 * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR IMPLIED 10 * WARRANTY. IN PARTICULAR, NEITHER THE AUTHORS NOR LUCENT TECHNOLOGIES MAKE 11 * ANY REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE MERCHANTABILITY 12 * OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE. 13 */ 14 #include "plan9.h" 15 #include "utf.h" 16 17 #include <stdarg.h> 18 #include <string.h> 19 20 Rune* runestrncpy(Rune* s1, Rune* s2, long n) { 21 int i; 22 Rune* os1; 23 24 os1 = s1; 25 for (i = 0; i < n; i++) 26 if ((*s1++ = *s2++) == 0) { 27 while (++i < n) 28 *s1++ = 0; 29 return os1; 30 } 31 return os1; 32 }