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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* exec.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: charles <charles.cabergs@gmail.com> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2020/04/01 17:06:11 by charles #+# #+# */
/* Updated: 2020/09/14 19:48:49 by charles ### ########.fr */
/* */
/* ************************************************************************** */
/*
** \file exec.c
** \brief Executable name and path
*/
#include "eval.h"
/*
** \brief Check if executable path is valid
** \param exec_path Executable path
** \return status code
*/
int exec_path_check(char *exec_path)
{
struct stat statbuf;
if (stat(exec_path, &statbuf) == -1)
return (errorf_ret(127, "%s: %s\n", exec_path, strerror(errno)));
if (S_ISDIR(statbuf.st_mode))
return (errorf_ret(126, "%s: Is a directory\n", exec_path));
if (!(statbuf.st_mode & 0444))
return (errorf_ret(126, "%s: %s\n", exec_path, strerror(EACCES)));
return (0);
}
/*
** \brief Search executable name in path
** \param path Path hash table
** \param path_var Path environment string in case we need to update path
** \param exec_name Executable name to search
** \return Executable path or NULL if not found or path update error
*/
/* int exec_search_path(t_path path, char *path_var, char *exec_name, char **exec_path) */
/* { */
/* if (ft_strchr(exec_name, '/') != NULL) // TODO test recursive link */
/* { */
/* *exec_path = exec_name; */
/* return (0); */
/* } */
/* if (path_var == NULL) */
/* return (127); */
/* // TODO if PATH contain empty path, consider current directory files as cmd */
/* if ((*exec_path = ft_htget(path, exec_name)) == NULL) */
/* { */
/* if (path_update(path, path_var) == NULL) */
/* return (EVAL_FATAL); */
/* if ((*exec_path = ft_htget(path, exec_name)) == NULL) */
/* return (127); */
/* } */
/* return (0); */
/* } */
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