-
Notifications
You must be signed in to change notification settings - Fork 0
/
minishell2.c
95 lines (88 loc) · 2.17 KB
/
minishell2.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* minishell2.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: smbaabu <[email protected]> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2019/05/23 22:08:32 by smbaabu #+# #+# */
/* Updated: 2019/05/23 22:22:38 by smbaabu ### ########.fr */
/* */
/* ************************************************************************** */
#include "minishell.h"
int check_file_exec(char *path)
{
if (check_valid_path(path))
{
if (check_exec_path(path))
return (1);
else
{
permission_denied(path);
return (0);
}
}
else
{
ft_printf("minishell: no such file or directory: %s\n", path);
return (0);
}
}
void *no_exec(char *path, char *cmd)
{
free(path);
permission_denied(cmd);
return (NULL);
}
char *find_cmd_path(t_node *env_lst, char *cmd)
{
char **paths;
char *path;
int i;
path = NULL;
paths = get_paths(env_lst);
i = 0;
while (paths[i])
{
path = join_btwn(paths[i], cmd, "/");
if (check_valid_path(path))
{
free_all(paths);
if (check_exec_path(path))
return (path);
else
return (no_exec(path, cmd));
}
free(path);
i++;
}
free_all(paths);
ft_printf("%s: Command not found\n", cmd);
return (NULL);
}
void exec(t_node *env_lst, char **args)
{
char *path;
char **sh_environ;
sh_environ = NULL;
if (**args != '/' && !ft_startswith(*args, "./"))
path = find_cmd_path(env_lst, *args);
else if (check_file_exec(*args))
path = ft_strdup(*args);
else
path = NULL;
if (path)
{
if (fork() == 0)
{
sh_environ = convert(env_lst);
signal(SIGINT, SIG_DFL);
execve(path, args, sh_environ);
}
else
wait(NULL);
}
free(path);
if (sh_environ)
free_all(sh_environ);
}