/*
 * strlcat() - Concatenate as much data as we can onto a
 * fixed-sized string, ensuring the result is NUL-terminated.
 * Return the total number of bytes required to concatenate
 * all of the src string onto dst.
 *
 * Dan Cross <net!gajendra!cross>
 */

#include <stddef.h>
#include <string.h>

size_t
strlcat(char *dst, const char *src, size_t size)
{
	char *p;
	size_t len;

	/*
	 * This mimics the OpenBSD semantics most closely.
	 *
	 * We would like to use strlen() here, but the idea is to
	 * catch cases where dst isn't a C-style string, and this
	 * function is (presumably) called in error.
	 */
	p = memchr(dst, '\0', size);
	if (p == NULL)
		p = dst + size;
	len = p - dst;

	return(len + strlcpy(p, src, size - len));
}