add ft_memcpy

1 files changed, 37 insertions, 4 deletions

diff --git a/get_next_line.c b/get_next_line.c
index 0beef4d..a5c2288 100644
--- a/get_next_line.c
+++ b/get_next_line.c
@@ -1,14 +1,47 @@
 #include <unistd.h>
 #include <stdlib.h>
+#include "libft.h"
 #include "get_next_line.h"
 
+static unsigned int cursor;
+
+static void *ft_memcat(void *ptr, void *tail,
+                        unsigned int size, unsigned int tail_size);
+
 int get_next_line(const int fd, char **line)
 {
-    char buf[BUFF_SIZE];
+    unsigned int    newline_i;
+    char            buf[BUFF_SIZE];
 
-    while ((read(fd, buf, BUFF_SIZE)) > 0)
+    if (read(fd, buf, BUFF_SIZE) < 0)
+        return (-1);
+    if ((*line = ft_strnew(0)) == NULL)
+        return (-1);
+    newline_i = 0;
+    while (buf[newline_i])
     {
-
+        while (buf[newline_i] != '\n')
+            newline_i++;
+        ft_memcat(*line, buf, 0, newline_i);
+        if (read(fd, buf, BUFF_SIZE) < 0)
+            return (-1);
     }
-    return 0;
+    return (0);
+}
+
+static void *ft_memcat(void *ptr, void *tail,
+                        unsigned int size, unsigned int tail_size)
+{
+    void *copy;
+
+    if ((copy = malloc(size)) == NULL)
+        return (NULL);
+    ft_memcpy(copy, ptr, size);
+    free(ptr);
+    if ((ptr = malloc(size + tail_size)) == NULL)
+        return (NULL);
+    ft_memcpy(ptr, copy, size);
+    free(copy);
+    ft_memcpy(ptr + size, tail, tail_size);
+    return (ptr);
 }