Last change
on this file since 3637 was 2725, checked in by Bruno Cornec, 14 years ago |
- Update mindi-busybox to 1.18.3 to avoid problems with the tar command which is now failing on recent versions with busybox 1.7.3
|
-
Property svn:eol-style
set to
native
|
File size:
1003 bytes
|
Line | |
---|
1 | /* vi: set sw=4 ts=4: */
|
---|
2 | /*
|
---|
3 | * Check user and group names for illegal characters
|
---|
4 | *
|
---|
5 | * Copyright (C) 2008 Tito Ragusa <farmatito@tiscali.it>
|
---|
6 | *
|
---|
7 | * Licensed under GPLv2 or later, see file LICENSE in this source tree.
|
---|
8 | */
|
---|
9 |
|
---|
10 | #include "libbb.h"
|
---|
11 |
|
---|
12 | /* To avoid problems, the username should consist only of
|
---|
13 | * letters, digits, underscores, periods, at signs and dashes,
|
---|
14 | * and not start with a dash (as defined by IEEE Std 1003.1-2001).
|
---|
15 | * For compatibility with Samba machine accounts $ is also supported
|
---|
16 | * at the end of the username.
|
---|
17 | */
|
---|
18 |
|
---|
19 | void FAST_FUNC die_if_bad_username(const char *name)
|
---|
20 | {
|
---|
21 | /* 1st char being dash or dot isn't valid: */
|
---|
22 | goto skip;
|
---|
23 | /* For example, name like ".." can make adduser
|
---|
24 | * chown "/home/.." recursively - NOT GOOD
|
---|
25 | */
|
---|
26 |
|
---|
27 | do {
|
---|
28 | if (*name == '-' || *name == '.')
|
---|
29 | continue;
|
---|
30 | skip:
|
---|
31 | if (isalnum(*name)
|
---|
32 | || *name == '_'
|
---|
33 | || *name == '@'
|
---|
34 | || (*name == '$' && !name[1])
|
---|
35 | ) {
|
---|
36 | continue;
|
---|
37 | }
|
---|
38 | bb_error_msg_and_die("illegal character '%c'", *name);
|
---|
39 | } while (*++name);
|
---|
40 | }
|
---|
Note:
See
TracBrowser
for help on using the repository browser.