Annotation of /trunk/mkinitrd-magellan/busybox/libbb/setup_environment.c
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Revision 1123 -
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Wed Aug 18 21:56:57 2010 UTC (13 years, 9 months ago) by niro
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Wed Aug 18 21:56:57 2010 UTC (13 years, 9 months ago) by niro
File MIME type: text/plain
File size: 2805 byte(s)
-updated to busybox-1.17.1
1 | niro | 532 | /* vi: set sw=4 ts=4: */ |
2 | /* | ||
3 | * Copyright 1989 - 1991, Julianne Frances Haugh <jockgrrl@austin.rr.com> | ||
4 | * All rights reserved. | ||
5 | * | ||
6 | * Redistribution and use in source and binary forms, with or without | ||
7 | * modification, are permitted provided that the following conditions | ||
8 | * are met: | ||
9 | * 1. Redistributions of source code must retain the above copyright | ||
10 | * notice, this list of conditions and the following disclaimer. | ||
11 | * 2. Redistributions in binary form must reproduce the above copyright | ||
12 | * notice, this list of conditions and the following disclaimer in the | ||
13 | * documentation and/or other materials provided with the distribution. | ||
14 | * 3. Neither the name of Julianne F. Haugh nor the names of its contributors | ||
15 | * may be used to endorse or promote products derived from this software | ||
16 | * without specific prior written permission. | ||
17 | * | ||
18 | * THIS SOFTWARE IS PROVIDED BY JULIE HAUGH AND CONTRIBUTORS ``AS IS'' AND | ||
19 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
20 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | ||
21 | * ARE DISCLAIMED. IN NO EVENT SHALL JULIE HAUGH OR CONTRIBUTORS BE LIABLE | ||
22 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | ||
23 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | ||
24 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
25 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | ||
26 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | ||
27 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | ||
28 | * SUCH DAMAGE. | ||
29 | */ | ||
30 | |||
31 | #include "libbb.h" | ||
32 | |||
33 | niro | 1123 | void FAST_FUNC setup_environment(const char *shell, int flags, const struct passwd *pw) |
34 | niro | 816 | { |
35 | /* Change the current working directory to be the home directory | ||
36 | * of the user */ | ||
37 | if (chdir(pw->pw_dir)) { | ||
38 | niro | 1123 | xchdir((flags & SETUP_ENV_TO_TMP) ? "/tmp" : "/"); |
39 | niro | 816 | bb_error_msg("can't chdir to home directory '%s'", pw->pw_dir); |
40 | } | ||
41 | niro | 532 | |
42 | niro | 1123 | if (flags & SETUP_ENV_CLEARENV) { |
43 | niro | 532 | const char *term; |
44 | |||
45 | niro | 816 | /* Leave TERM unchanged. Set HOME, SHELL, USER, LOGNAME, PATH. |
46 | niro | 1123 | * Unset all other environment variables. */ |
47 | niro | 532 | term = getenv("TERM"); |
48 | clearenv(); | ||
49 | if (term) | ||
50 | xsetenv("TERM", term); | ||
51 | niro | 816 | xsetenv("PATH", (pw->pw_uid ? bb_default_path : bb_default_root_path)); |
52 | goto shortcut; | ||
53 | // No, gcc (4.2.1) is not clever enougn to do it itself. | ||
54 | //xsetenv("USER", pw->pw_name); | ||
55 | //xsetenv("LOGNAME", pw->pw_name); | ||
56 | //xsetenv("HOME", pw->pw_dir); | ||
57 | //xsetenv("SHELL", shell); | ||
58 | niro | 1123 | } else if (flags & SETUP_ENV_CHANGEENV) { |
59 | niro | 532 | /* Set HOME, SHELL, and if not becoming a super-user, |
60 | niro | 1123 | * USER and LOGNAME. */ |
61 | niro | 532 | if (pw->pw_uid) { |
62 | niro | 816 | shortcut: |
63 | niro | 532 | xsetenv("USER", pw->pw_name); |
64 | xsetenv("LOGNAME", pw->pw_name); | ||
65 | } | ||
66 | niro | 816 | xsetenv("HOME", pw->pw_dir); |
67 | xsetenv("SHELL", shell); | ||
68 | niro | 532 | } |
69 | } |