89 lines
2.2 KiB
C
89 lines
2.2 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* pipex_utils2.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: erey-bet <marvin@42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2023/02/14 15:46:08 by erey-bet #+# #+# */
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/* Updated: 2023/03/07 18:56:52 by erey-bet ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "pipex.h"
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static int open_close_pipe(t_data *data, int boolean, int file)
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{
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if (!boolean)
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{
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if (!file)
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if (pipe(data->fd[0]) < 0)
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return (1);
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if (file)
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if (pipe(data->fd[1]) < 0)
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return (1);
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}
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else
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{
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if (!file)
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if (close(data->fd[0][0]) < 0 || close(data->fd[0][1]) < 0)
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return (1);
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if (file)
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if (close(data->fd[1][0]) < 0 || close(data->fd[1][1]) < 0)
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return (1);
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}
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return (0);
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}
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static void choice_command(int argc, t_data data, int i)
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{
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if (i == 0)
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cmd(data, i, 0);
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else if (i + 1 < argc - 3)
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cmd(data, i, 1);
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else
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cmd(data, i, 2);
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}
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int pipex_loop(int argc, int **fk, t_data data)
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{
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int i;
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i = -1;
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while (++i < argc - 3)
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{
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if (open_close_pipe(&data, 0, i % 2))
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return (1);
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if ((i > 0 || (i == 0 && data.fd1 > 0)) && data.cmds[i])
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{
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(*fk)[i] = fork();
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if ((*fk)[i] < 0)
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return (1);
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if ((*fk)[i] == 0)
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choice_command(argc, data, i);
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}
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if (i > 0)
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if (open_close_pipe(&data, 1, (i + 1) % 2))
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return (1);
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}
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return (open_close_pipe(&data, 1, (i + 1) % 2));
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}
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int verification_command(char *argv[], t_data data)
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{
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int i;
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i = -1;
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while (++i < data.argc - 3)
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{
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data.cmds[i] = find_command(data.env, data.cmds[i]);
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if (data.cmds[i] == NULL)
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{
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print_error(1, argv[2 + i]);
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if (i == data.argc - 4)
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return (free_all(&data));
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}
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}
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return (0);
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}
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