96 lines
2.3 KiB
C
96 lines
2.3 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* heredoc.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: cchauvet <cchauvet@student.42angoulem +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2023/02/17 15:36:26 by cchauvet #+# #+# */
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/* Updated: 2023/04/05 14:58:01 by alouis-j ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "./redirection_private.h"
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int *ft_get_heredoc(void)
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{
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static int heredoc = -1;
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return (&heredoc);
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}
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static int ft_format_and_write(t_data *data, const char *str, int fd)
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{
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char *line_clean;
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line_clean = ft_env_filler(data, str);
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if (line_clean == NULL)
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return (1);
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ft_putendl_fd(line_clean, fd);
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free(line_clean);
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return (0);
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}
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static int ft_heredoc2(t_data *data, char *stop, int fds[2])
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{
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char *line;
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ft_printf("> ");
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line = get_next_line(*ft_get_heredoc());
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if (line == NULL)
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{
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if (*ft_get_heredoc() == -1)
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{
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ft_putchar_fd('\n', 1);
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ft_closer(fds);
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return (1);
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}
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else
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{
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ft_eprintf("minishell: warning: here-document at line 1 delimited by end-of-file (wanted `%s')\n", stop);
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return (2);
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}
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}
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line[ft_strlen(line) - 1] = '\0';
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if (ft_strcmp(line, stop) == 0)
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{
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free(line);
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return (2);
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}
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if (ft_format_and_write(data, line, fds[1]))
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{
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ft_closer(fds);
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free(line);
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return (1);
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}
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free(line);
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return (0);
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}
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int ft_heredoc(t_data *data, char *stop)
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{
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int fds[2];
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int return_code;
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if (pipe(fds) == -1)
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return (-1);
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*ft_get_heredoc() = dup(0);
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while (true)
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{
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return_code = ft_heredoc2(data, stop, fds);
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if (return_code == 2)
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break ;
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else if (return_code == 1)
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{
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if (*ft_get_heredoc() > 2)
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close(*ft_get_heredoc());
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*ft_get_heredoc() = -1;
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return (-2);
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}
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}
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close(*ft_get_heredoc());
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*ft_get_heredoc() = -1;
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close(fds[1]);
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return (fds[0]);
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}
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