1 /* @(#)strcatn.c 4.1 (Berkeley) 12/21/80 */ 2 /* 3 * Concatenate s2 on the end of s1. S1's space must be large enough. 4 * At most n characters are moved. 5 * Return s1. 6 */ 7 8 char * 9 strcatn(s1, s2, n) 10 register char *s1, *s2; 11 register n; 12 { 13 register char *os1; 14 15 os1 = s1; 16 while (*s1++) 17 ; 18 --s1; 19 while (*s1++ = *s2++) 20 if (--n < 0) { 21 *--s1 = '\0'; 22 break; 23 } 24 return(os1); 25 } 26