117 lines
2.6 KiB
C
117 lines
2.6 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* get_next_line_bonus.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: erey-bet <marvin@42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2022/10/15 23:42:35 by erey-bet #+# #+# */
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/* Updated: 2022/11/16 13:20:26 by erey-bet ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "get_next_line.h"
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static char *read_line(int fd)
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{
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char *buff;
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int y;
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buff = ft_calloc(BUFFER_SIZE + 1, 1);
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if (buff == NULL)
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return (NULL);
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y = read(fd, buff, BUFFER_SIZE);
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if (y == -1)
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{
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free(buff);
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return (NULL);
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}
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buff[y] = '\0';
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return (buff);
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}
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static char *join_str(char *s1, char *s2)
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{
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char *n_str;
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int i;
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int len;
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len = ft_strlen(s1);
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n_str = ft_calloc(len + ft_strlen(s2) + 1, 1);
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if (n_str == NULL)
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return (NULL);
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i = -1;
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if (s1 != NULL)
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while (s1[++i])
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n_str[i] = s1[i];
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i = -1;
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while (s2[++i])
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n_str[i + len] = s2[i];
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n_str[i + len] = '\0';
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free(s1);
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free(s2);
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return (n_str);
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}
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static char *get_text(char *save)
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{
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int i;
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char *new_s;
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i = 0;
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while (save[i] && save[i] != '\n')
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i++;
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if (save[i] == '\n')
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i++;
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new_s = ft_calloc(i + 1, 1);
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if (new_s == NULL)
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return (NULL);
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ft_strlcpy(new_s, save, i + 1);
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ft_strlcpy(save, save + i, ft_strlen(save));
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return (new_s);
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}
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static void *make_free(char *buff, char **save, int choice)
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{
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if (choice == 1)
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{
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free(buff);
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free(*save);
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}
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else
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{
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free(*save);
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*save = NULL;
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}
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return (NULL);
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}
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static char *get_next_line(int fd)
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{
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char *buff;
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char *str;
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static char *save[1024];
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if (fd < 0 || fd >= 1024)
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return (NULL);
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buff = NULL;
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while (buff == NULL || ft_strchr(save[fd], '\n') == -1)
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{
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buff = read_line(fd);
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if (buff == NULL || (ft_strlen(buff) == 0 && ft_strlen(save[fd]) == 0))
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return (make_free(buff, &save[fd], 1));
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if (ft_strlen(buff) == 0)
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{
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free(buff);
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break;
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}
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save[fd] = join_str(save[fd], buff);
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if (save[fd] == NULL)
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return (NULL);
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}
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str = get_text(save[fd]);
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if (ft_strlen(save[fd]) == 0)
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make_free(NULL, &save[fd], 2);
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return (str);
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}
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