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ft_execution.c
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ft_execution.c
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_execution.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: mpizzolo <mpizzolo@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2023/03/10 10:41:20 by ralopez- #+# #+# */
/* Updated: 2023/05/25 09:47:10 by mpizzolo ### ########.fr */
/* */
/* ************************************************************************** */
#include "minishell.h"
int execute_builtin(t_command *cmd, t_inf *info, int exi)
{
int code;
code = 127;
if (!ft_strcmp(cmd->cmd, "echo"))
code = echo(cmd);
else if (!ft_strcmp(cmd->cmd, "cd"))
code = cd(info, cmd);
else if (!ft_strcmp(cmd->cmd, "pwd"))
code = pwd(info, cmd);
else if (!ft_strcmp(cmd->cmd, "export"))
code = export_binding(info, cmd);
else if (!ft_strcmp(cmd->cmd, "unset"))
code = unset(info, cmd);
else if (!ft_strcmp(cmd->cmd, "env")
|| !ft_strcmp(cmd->cmd, "/usr/bin/env"))
code = env(info);
else if (!ft_strcmp(cmd->cmd, "exit"))
code = ft_exit(cmd, info);
info->last_code = code;
if (exi)
exit(info->last_code);
return (code);
}
void execute_cmd(t_command *cmd)
{
char *cmd_original;
cmd_original = ft_strdup(cmd->cmd);
redir(cmd, &g_info);
if (cmd != NULL && is_builtin(cmd->cmd))
execute_builtin(cmd, &g_info, 1);
else
{
cmd->cmd = get_path(cmd->cmd, &g_info);
if (cmd->cmd == NULL)
{
g_info.last_code = display_error_path(cmd_original);
exit(g_info.last_code);
}
else if (execve(cmd->cmd, cmd->args, g_info.env) == -1)
{
g_info.last_code = msg("Execve", ": ", strerror(errno), errno);
exit(g_info.last_code);
}
g_info.last_code = 0;
if (cmd->cmd != NULL)
free(cmd->cmd);
}
}
int create_childs(t_inf *info)
{
t_command *tmp;
tmp = info->commands;
while (tmp)
{
info->pid = fork();
if (info->pid == -1)
info->last_code = msg("fork", ": ", strerror(errno), EXIT_FAILURE);
else if (info->pid == 0)
execute_cmd(tmp);
tmp = tmp->next;
}
return (wait_childs(info));
}
int execute_single_cmd(t_inf *info)
{
t_command *tmp;
tmp = info->commands;
execute_builtin(tmp, info, 0);
return (info->last_code);
}
int execute_commands(t_inf *info)
{
int code;
code = prepare_execution(info);
if (code != CMD_NOT_FOUND)
return (code);
if (num_cmds(info) == 1 && is_builtin(info->commands->cmd))
code = execute_single_cmd(info);
else
code = create_childs(info);
return (code);
}