libft/ft_strlcat.c

38 lines
1.3 KiB
C

/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_strlcat.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: tosuman <timo42@proton.me> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2023/05/11 16:55:00 by tosuman #+# #+# */
/* Updated: 2023/06/26 20:41:08 by tosuman ### ########.fr */
/* */
/* ************************************************************************** */
#include <stddef.h>
size_t ft_strlcat(char *dst, char const *src, size_t size)
{
size_t idx;
size_t sidx;
size_t slen;
size_t dlen;
slen = 0;
while (src[slen])
++slen;
idx = 0;
while (dst[idx] && idx < size)
++idx;
dlen = idx;
if (dlen == size)
return (slen + size);
sidx = 0;
size -= dlen;
while (size-- > 1 && src[sidx])
dst[idx++] = src[sidx++];
dst[idx] = 0;
return (dlen + slen);
}