minishell/parsing/redirection_utils.c
2023-12-12 17:32:54 +01:00

34 lines
1.3 KiB
C
Executable File

/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* redirection_utils.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: fgras-ca <fgras-ca@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2023/12/07 12:33:34 by fgras-ca #+# #+# */
/* Updated: 2023/12/10 13:29:36 by fgras-ca ### ########.fr */
/* */
/* ************************************************************************** */
#include "../minishell.h"
void save_standard_descriptors(t_redirection *redir)
{
redir->stdin_backup = dup(STDIN_FILENO);
redir->stdout_backup = dup(STDOUT_FILENO);
}
void restore_standard_descriptors(t_redirection *redir)
{
if (redir->stdin_backup != -1)
{
dup2(redir->stdin_backup, STDIN_FILENO);
close(redir->stdin_backup);
}
if (redir->stdout_backup != -1)
{
dup2(redir->stdout_backup, STDOUT_FILENO);
close(redir->stdout_backup);
}
}