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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* cmd.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: charles <charles@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2020/06/14 10:41:31 by charles #+# #+# */
/* Updated: 2020/09/14 17:18:05 by charles ### ########.fr */
/* */
/* ************************************************************************** */
#include "eval.h"
pid_t g_child_pid = -1;
int g_last_status = 0;
int wrapped_cmd(void *void_param)
{
t_fork_param_cmd *param;
int status;
param = void_param;
if (param->builtin != NULL)
return (param->builtin->func(param->argv, param->env));
else
{
status = execve(param->exec_path, param->argv, (char**)param->env->data);
if (status == -1)
{
if (errno == ENOEXEC)
return (0);
return (errorf_ret(126, "%s: %s\n", param->exec_path, strerror(errno)));
}
return (status);
}
}
int eval_cmd(int fds[2], t_env env, t_path path, t_ast *ast, pid_t *child_pid)
{
t_fork_param_cmd param;
char **argv;
int status;
if ((status = redir_extract(&ast->redirs, env, fds)) != 0)
return (status);
if ((argv = preprocess(&ast->cmd_argv, env)) == NULL)
return (EVAL_FATAL);
if (argv[0] == NULL)
return (0);
param.builtin = builtin_search_func(argv[0]);
if (param.builtin != NULL && !param.builtin->forked && child_pid == NULL)
return (param.builtin->func(argv, env));
if (param.builtin == NULL)
{
status = exec_search_path(path, env_search(env, "PATH"), argv[0], ¶m.exec_path);
if (status != 0)
{
if (status == 127)
errorf("%s: command not found\n", argv[0]);
ft_split_destroy(argv);
return (status);
}
if ((status = exec_path_check(param.exec_path)) != 0)
return (status);
}
param.argv = argv;
param.env = env;
status = fork_wrap(fds, ¶m, &wrapped_cmd, child_pid);
ft_split_destroy(argv);
g_last_status = status;
return (status);
}
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