63 lines
1.9 KiB
C
63 lines
1.9 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* get_next_line.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: kcolin <marvin@42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2024/10/23 20:32:46 by kcolin #+# #+# */
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/* Updated: 2024/11/08 15:11:45 by kcolin ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "get_next_line.h"
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#include <stdlib.h>
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char *read_at_least_one_line(char *buffer, int fd)
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{
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char *read_buffer;
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int bytes_read;
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read_buffer = malloc((BUFFER_SIZE + 1) * sizeof(char));
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if (read_buffer == NULL)
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return (NULL);
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bytes_read = 1;
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while (ft_strchr(buffer, '\n') == NULL && bytes_read > 0)
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{
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bytes_read = read(fd, read_buffer, BUFFER_SIZE);
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if (bytes_read < 0)
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{
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free(buffer);
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free(read_buffer);
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return (NULL);
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}
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read_buffer[bytes_read] = '\0';
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buffer = ft_strjoin(buffer, read_buffer);
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if (buffer == NULL)
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break ;
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}
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free(read_buffer);
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return (buffer);
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}
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char *get_next_line(int fd)
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{
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static char *buffer = NULL;
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char *out;
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size_t line_length;
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char *buf;
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if (fd < 0)
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return (NULL);
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buffer = read_at_least_one_line(buffer, fd);
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if (buffer == NULL)
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return (NULL);
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line_length = 0;
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while (buffer[line_length] != '\0' && buffer[line_length] != '\n')
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line_length++;
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out = ft_substr(buffer, 0, line_length + 1);
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buf = buffer;
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buffer = ft_substr(buf, line_length + 1, ft_strlen(buffer) - line_length);
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free(buf);
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return (out);
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}
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