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yabtaour
GitHub Repository: yabtaour/Minishell-42
 Path: blob/main/execution/my_mess/my_exec.c
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/* ************************************************************************** */

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/*                                                                            */

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/*                                                        :::      ::::::::   */

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/*   my_exec.c                                          :+:      :+:    :+:   */

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/*                                                    +:+ +:+         +:+     */

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/*   By: ssabbaji <[email protected]>          +#+  +:+       +#+        */

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/*                                                +#+#+#+#+#+   +#+           */

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/*   Created: 2022/08/10 11:10:11 by ssabbaji          #+#    #+#             */

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/*   Updated: 2022/10/03 15:31:22 by ssabbaji         ###   ########.fr       */

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/*                                                                            */

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/* ************************************************************************** */

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#include "../../minishell.h"

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char	*generate_path(t_data *data, char **cmd, int i, int flag)

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{

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	char	*path;

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	path = NULL;

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	if (!flag)

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	{

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		path = ft_strjoin(data->paths[i], "/");

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		path = ft_strjoin(path, cmd[0]);

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	}

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	else if (flag == 1)

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		path = ft_strjoin(path, cmd[0]);

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	else

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	{

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		path = ft_strjoin(custom_getenv("PWD", data->lst_env), "/");

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		path = ft_strjoin(path, cmd[0]);

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	}

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	return (path);

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}

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int	check_access(t_data *data, char **cmd, int i, int flag)

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{

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	char	*path;

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	int		fd;

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	int		size;

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	size = 0;

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	fd = 0;

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	path = NULL;

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	path = generate_path(data, cmd, i, flag);

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	fd = access(path, F_OK | X_OK);

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	size = count_cmds(cmd);

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	cmd[size] = NULL;

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	if (fd == -1)

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		return (0);

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	else

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	{

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		if (data->lst_cmd->fd_in != 0)

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			close(data->lst_cmd->fd_in);

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		if (data->lst_cmd->fd_out != 1)

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			close(data->lst_cmd->fd_out);

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		execve(path, cmd, data->env);

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		perror("execve() error");

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	}

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	free(path);

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	return (1);

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}

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void	print_cmd_error(char *cmd, int flag)

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{

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	if (flag)

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	{

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		ft_putstr_fd("bash :", 2);

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		ft_putstr_fd(cmd, 2);

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		ft_putstr_fd(": command not found\n", 2);

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	}

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	else

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	{

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		ft_putstr_fd("bash :", 2);

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		ft_putstr_fd(cmd, 2);

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		ft_putstr_fd(": No such file or directory\n", 2);

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	}

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}

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int	check_nonabs(t_data *data, char **cmd)

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{

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	int	ret;

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	int	i;

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	i = -1;

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	ret = 0;

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	if (check_path(data->lst_env))

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	{

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		data->paths = ft_split(custom_getenv("PATH", data->lst_env), ':');

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		while (data->paths[++i] && ret != 1)

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			ret = check_access(data, cmd, i, 0);

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		if (!ret)

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		{

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			print_cmd_error(cmd[0], 1);

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			return (0);

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		}

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	}

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	else if (!check_access(data, cmd, 0, 3))

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	{

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		print_cmd_error(cmd[0], 0);

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		return (0);

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	}

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	return (1);

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}

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int	execution_2(t_data *data, t_cmd *lst_cmd)

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{

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	char	**cmd;

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	data->paths = NULL;

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	cmd = lst_cmd->cmd;

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	if (cmd[0][0] == '/' || cmd[0][0] == '.')

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		check_access(data, cmd, 0, 1);

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	if (check_nonabs(data, cmd))

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		g_vars.g_exit_stat = 0;

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	else

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		g_vars.g_exit_stat = 127;

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	return (g_vars.g_exit_stat);

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}

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