Files
minishell/srcs/output_redirections.c

73 lines
2.2 KiB
C
Executable File

/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* output_redirections.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: marde-vr <marde-vr@42angouleme.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2024/03/05 19:10:52 by marde-vr #+# #+# */
/* Updated: 2024/04/03 15:09:52 by tomoron ### ########.fr */
/* */
/* ************************************************************************** */
#include "minishell.h"
void redirect_output(t_msh *msh)
{
if (msh->out_type != PIPE)
{
if (dup2(msh->out_fd, 1) < 0)
ft_exit(msh, 1);
}
else
{
if (dup2(msh->out_fd, 1) < 0)
ft_exit(msh, 1);
}
}
void open_out_file(t_msh *msh, t_cmd **cur_cmd, char *filename)
{
if (msh->out_type == RED_O)
msh->out_fd = open(filename, O_CREAT | O_WRONLY | O_TRUNC, 0644);
if (msh->out_type == RED_O_APP)
msh->out_fd = open(filename, O_CREAT | O_RDWR | O_APPEND, 0644);
if (msh->out_fd == -1)
{
g_return_code = 1;
ft_putstr_fd("minishell: ", 2);
perror(filename);
return ;
}
if ((*cur_cmd)->cmd_type != PIPE)
{
while ((*cur_cmd)->next && is_cmd_type((*cur_cmd)->next))
*cur_cmd = (*cur_cmd)->next;
if ((*cur_cmd)->next && is_output_type((*cur_cmd)->next))
get_out_type(msh, *cur_cmd);
}
}
void get_out_type(t_msh *msh, t_cmd *cmds)
{
t_cmd *cur_cmd;
t_token *filename;
msh->out_type = CMD;
msh->out_fd = 0;
cur_cmd = cmds;
while (cur_cmd && cur_cmd->next && !is_operand_type(cur_cmd))
cur_cmd = cur_cmd->next;
if (cur_cmd->cmd_type == CMD || cur_cmd->cmd_type == PAREN)
msh->out_type = 0;
else if(cur_cmd && !is_operand_type(cur_cmd))
{
msh->out_type = cur_cmd->cmd_type;
filename = parse_command(cur_cmd->value, msh->env);
if(!filename)
ft_exit(msh, 1);
open_out_file(msh, &cur_cmd, filename->value);
free_token(filename);
}
}