view target-utils/libc/strncat.c @ 87:7fb62fc724dc

target-utils/libc: beginning of newlib-ectomy
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 28 Oct 2016 22:20:26 +0000
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/*
 * 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);
}