Annotation of /trunk/mkinitrd-magellan/busybox/coreutils/logname.c
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Sat Sep 1 22:45:15 2007 UTC (16 years, 8 months ago) by niro
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Sat Sep 1 22:45:15 2007 UTC (16 years, 8 months ago) by niro
File MIME type: text/plain
File size: 1102 byte(s)
-import if magellan mkinitrd; it is a fork of redhats mkinitrd-5.0.8 with all magellan patches and features; deprecates magellan-src/mkinitrd
1 | niro | 532 | /* vi: set sw=4 ts=4: */ |
2 | /* | ||
3 | * Mini logname implementation for busybox | ||
4 | * | ||
5 | * Copyright (C) 2000 Edward Betts <edward@debian.org>. | ||
6 | * | ||
7 | * Licensed under GPLv2 or later, see file LICENSE in this tarball for details. | ||
8 | */ | ||
9 | |||
10 | /* BB_AUDIT SUSv3 compliant */ | ||
11 | /* http://www.opengroup.org/onlinepubs/007904975/utilities/logname.html */ | ||
12 | |||
13 | /* Mar 16, 2003 Manuel Novoa III (mjn3@codepoet.org) | ||
14 | * | ||
15 | * SUSv3 specifies the string used is that returned from getlogin(). | ||
16 | * The previous implementation used getpwuid() for geteuid(), which | ||
17 | * is _not_ the same. Erik apparently made this change almost 3 years | ||
18 | * ago to avoid failing when no utmp was available. However, the | ||
19 | * correct course of action wrt SUSv3 for a failing getlogin() is | ||
20 | * a diagnostic message and an error return. | ||
21 | */ | ||
22 | |||
23 | #include <stdio.h> | ||
24 | #include <stdlib.h> | ||
25 | #include <unistd.h> | ||
26 | #include "busybox.h" | ||
27 | |||
28 | int logname_main(int argc, char ATTRIBUTE_UNUSED **argv) | ||
29 | { | ||
30 | const char *p; | ||
31 | |||
32 | if (argc > 1) { | ||
33 | bb_show_usage(); | ||
34 | } | ||
35 | |||
36 | if ((p = getlogin()) != NULL) { | ||
37 | puts(p); | ||
38 | fflush_stdout_and_exit(EXIT_SUCCESS); | ||
39 | } | ||
40 | |||
41 | bb_perror_msg_and_die("getlogin"); | ||
42 | } |