1 /* 2 * Copyright (c) 1980 Regents of the University of California. 3 * All rights reserved. The Berkeley software License Agreement 4 * specifies the terms and conditions for redistribution. 5 */ 6 7 #if defined(LIBC_SCCS) && !defined(lint) 8 static char sccsid[] = "@(#)strcatn.c 4.3 (Berkeley) 03/09/86"; 9 #endif LIBC_SCCS and not lint 10 11 /* 12 * Concatenate s2 on the end of s1. S1's space must be large enough. 13 * At most n characters are moved. 14 * Return s1. 15 */ 16 17 char * 18 strcatn(s1, s2, n) 19 register char *s1, *s2; 20 register n; 21 { 22 register char *os1; 23 24 os1 = s1; 25 while (*s1++) 26 ; 27 --s1; 28 while (*s1++ = *s2++) 29 if (--n < 0) { 30 *--s1 = '\0'; 31 break; 32 } 33 return(os1); 34 } 35