P8000/WEGA/contrib/lcc/lib/libc/port/gen/strncat.c

25 lines
334 B
C

/*
* Concatenate s2 on the end of s1. S1's space must be large enough.
* At most n characters are moved.
* Return s1.
*/
char *
strncat(s1, s2, n)
register char *s1, *s2;
register n;
{
register char *os1;
os1 = s1;
while(*s1++)
;
--s1;
while(*s1++ = *s2++)
if(--n < 0) {
*--s1 = '\0';
break;
}
return(os1);
}