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
|
/*
* Copyright (c) 2014 embedded brains GmbH. All rights reserved.
*
* embedded brains GmbH
* Dornierstr. 4
* 82178 Puchheim
* Germany
* <rtems@embedded-brains.de>
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <errno.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <rtems/shellconfig.h>
#include <rtems/stringto.h>
#include "internal.h"
static int usage(void)
{
puts(rtems_shell_CMDCHMOD_Command.usage);
return -1;
}
static void error(const char *s, int eno)
{
printf("%s: %s\n", s, strerror(eno));
}
static int rtems_shell_main_cmdchmod(int argc, char **argv)
{
if (argc >= 2) {
unsigned long mode;
rtems_status_code sc;
uid_t task_uid;
int i;
sc = rtems_string_to_unsigned_long(argv[1], &mode, NULL, 8);
if (sc != RTEMS_SUCCESSFUL) {
return usage();
}
task_uid = getuid();
for (i = 2; i < argc; ++i) {
const char *cmd = argv[i];
rtems_shell_cmd_t *shell_cmd = rtems_shell_lookup_cmd(cmd);
if (shell_cmd != NULL) {
if (task_uid == 0 || task_uid == shell_cmd->uid) {
shell_cmd->mode = mode
& (S_IRUSR | S_IXUSR | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH);
} else if (rtems_shell_can_see_cmd(shell_cmd)) {
error(cmd, EACCES);
} else {
error(cmd, ENOENT);
}
} else {
error(cmd, ENOENT);
}
}
} else {
return usage();
}
return 0;
}
rtems_shell_cmd_t rtems_shell_CMDCHMOD_Command = {
.name = "cmdchmod",
.usage = "cmdchmod OCTAL-MODE COMMAND...",
.topic = "misc",
.command = rtems_shell_main_cmdchmod
};
|
