116 lines
2.7 KiB
C
116 lines
2.7 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* redirection.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: cchauvet <cchauvet@student.42angouleme.fr +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2023/03/27 13:44:22 by cchauvet #+# #+# */
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/* Updated: 2023/04/05 14:00:52 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_replace_file(t_data *data, char **tab)
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{
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size_t i;
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char *redirection;
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i = 0;
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while (tab[i] != NULL)
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{
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if (ft_is_in("<>", tab[i][0]))
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{
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i++;
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redirection = ft_env_filler(data, tab[i]);
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if (redirection == NULL)
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return (1);
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free(tab[i]);
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tab[i] = redirection;
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ft_quote_remover(tab[i]);
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}
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i++;
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}
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return (0);
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}
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static void ft_skip(char *str, size_t *i, ssize_t *start)
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{
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while (str[*i] == str[*start])
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(*i)++;
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while (str[*i] == ' ')
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(*i)++;
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while (str[*i] != '\0' && (str[*i] != ' '
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|| ft_is_in_quote(str, *i)))
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(*i)++;
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}
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static void ft_remove_redirection(char *cmd_str)
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{
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size_t i;
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ssize_t start;
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i = 0;
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while (cmd_str[i] != '\0')
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{
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start = -1;
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while ((ft_is_in_quote(cmd_str, i) || !ft_is_in("<>", cmd_str[i]))
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&& cmd_str[i] != '\0')
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i++;
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if (ft_is_in("<>", cmd_str[i]))
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start = i;
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else
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continue ;
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ft_skip(cmd_str, &i, &start);
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if (start != -1)
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{
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ft_strshift(cmd_str + start, -1 * (i - start));
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i = start;
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}
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}
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}
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int ft_set_redirection(t_data *data, t_cmd *cmd, char **tab)
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{
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size_t i;
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i = 0;
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while (tab[i + 1] != NULL)
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{
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if (ft_check_redirection(data, cmd, tab[i], tab[i + 1]))
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return (1);
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i++;
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}
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if (ft_is_in("<>", tab[i][0]))
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{
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ft_eprintf("minishell: %s: must be followed by a file\n", tab[i]);
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return (1);
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}
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return (0);
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}
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int ft_redirection(t_data *data, t_cmd *cmd, char *cmd_str)
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{
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char **tab;
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cmd->fd_in[0] = -1;
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cmd->fd_in[1] = -1;
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cmd->fd_out[0] = -1;
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cmd->fd_out[1] = -1;
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tab = ft_split_quoted(cmd_str, ' ');
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if (tab == NULL)
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{
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ft_eprintf("minishell: malloc failed\n");
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return (1);
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}
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ft_remove_redirection(cmd_str);
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if (ft_set_redirection(data, cmd, tab))
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{
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ft_freer_tab_ultimate(1, tab);
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return (1);
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}
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ft_freer_tab_ultimate(1, tab);
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return (0);
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}
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