92 lines
2.6 KiB
C
Executable File
92 lines
2.6 KiB
C
Executable File
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* input_redirections.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: marde-vr <marde-vr@42angouleme.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2024/03/05 18:15:27 by marde-vr #+# #+# */
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/* Updated: 2024/04/18 17:56:05 by tomoron ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "minishell.h"
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void redirect_input(t_msh *msh, int i)
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{
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if (msh->in_type != PIPE)
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{
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fprintf(stderr, "redirecting input\n");
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if (dup2(msh->in_fd, 0) < 0)
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ft_exit(msh, 1);
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close(msh->in_fd);
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}
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else
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{
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fprintf(stderr, "redirecting pipe input\n");
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fprintf(stderr, "input of cmd %d: 0 -> %d\n", i, msh->fds[i - 1][0]);
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if (dup2(msh->fds[i - 1][0], 0) < 0)
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{
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perror("dup2"); //debug
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ft_exit(msh, 1);
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}
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}
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}
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void open_input_file(t_msh *msh, t_cmd **cur_token)
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{
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t_token *filename;
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if ((*cur_token)->cmd_type == HERE_DOC)
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handle_here_doc(msh, (*cur_token)->value);
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if ((*cur_token)->cmd_type == RED_I)
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{
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if (msh->in_fd != 0)
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close(msh->in_fd);
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filename = parse_command((*cur_token)->value, msh->env);
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if(!filename)
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ft_exit(msh, 1);
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msh->in_fd = open(filename->value, O_RDONLY);
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free_token(filename);
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if (msh->in_fd == -1 && !g_return_code)
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{
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fprintf(stderr, "minishell: %s: ", (*cur_token)->next->value);
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perror("");
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g_return_code = 1;
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}
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}
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}
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void get_in_type(t_msh *msh, t_cmd *tokens)
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{
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t_cmd *cur_token;
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cur_token = tokens;
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if (cur_token && cur_token->cmd_type == PIPE)
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{
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msh->in_type = PIPE;
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return ;
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}
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while (cur_token && (cur_token->cmd_type == CMD || cur_token->cmd_type == PAREN))
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cur_token = cur_token->next;
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if (cur_token && is_input_type(cur_token))
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{
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msh->in_type = cur_token->cmd_type;
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open_input_file(msh, &cur_token);
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}
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if(cur_token && cur_token->next && !is_operand_type(cur_token->next))
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get_in_type(msh, cur_token->next);
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}
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int first_is_in_type(t_cmd *cmd)
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{
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t_cmd *cur_token;
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cur_token = cmd;
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while (cur_token && cur_token->cmd_type == CMD && cur_token->next)
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cur_token = cur_token->next;
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if ( is_input_type(cur_token) || cur_token->cmd_type == PIPE)
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return (1);
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return (0);
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}
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