Add libft and input handling

1 files changed, 72 insertions, 0 deletions

diff --git a/libft/ft_strlcat.c b/libft/ft_strlcat.c
new file mode 100644
index 0000000..d49dfad
--- /dev/null
+++ b/libft/ft_strlcat.c
@@ -0,0 +1,72 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_strlcat.c                                       :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: dkaiser <dkaiser@student.42heilbronn.de    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2024/03/06 13:36:59 by dkaiser           #+#    #+#             */
+/*   Updated: 2024/03/10 13:15:10 by dkaiser          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libft.h"
+
+/* size_t	ft_strlcat(char *dst, const char *src, size_t dstsize) */
+/* { */
+/* 	size_t	len; */
+/* 	size_t	i; */
+
+/* 	if (dstsize == 0) */
+/* 		return (0); */
+/* 	len = 0; */
+/* 	while (len < dstsize - 1 && dst[len] != '\0') */
+/* 	{ */
+/* 		len++; */
+/* 	} */
+/* 	i = 0; */
+/* 	while (len < dstsize - 1 && src[i] != '\0') */
+/* 	{ */
+/* 		dst[len] = src[i]; */
+/* 		len++; */
+/* 		i++; */
+/* 	} */
+/* 	dst[len] = '\0'; */
+/* 	return (len); */
+/* } */
+
+size_t	ft_strlcat(char *dst, const char *src, size_t dstsize)
+{
+	size_t	src_len;
+	size_t	dst_len;
+	size_t	i;
+
+	src_len = 0;
+	while (src[src_len])
+		src_len++;
+	dst_len = 0;
+	while (dst[dst_len])
+		dst_len++;
+	if (dst_len >= dstsize)
+		return (dstsize + src_len);
+	i = 0;
+	while (i < src_len && dst_len + i < dstsize - 1)
+	{
+		dst[dst_len + i] = src[i];
+		i++;
+	}
+	dst[dst_len + i] = '\0';
+	return (dst_len + src_len);
+}
+
+/* #include <stdio.h> */
+/* int main () { */
+/*     char dst[12] = "Hello "; */
+/*     char dst2[12] = "Hello "; */
+/*     char src[] = "World123"; */
+
+/*     size_t len = strlcat(dst, src, 12); */
+/*     size_t len2 = ft_strlcat(dst2, src, 12); */
+/*     printf("strlcat (%zu): %s\n", len, dst); */
+/*     printf("ft_strlcat (%zu): %s\n", len2, dst2); */
+/* } */