Contents 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 | /* 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 | } |