mirror of
https://github.com/sheumann/hush.git
synced 2024-10-31 19:04:47 +00:00
d069e5398d
text data bss dec hex filename 824641 458 6956 832055 cb237 busybox_old 824631 458 6956 832045 cb22d busybox_unstripped Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
44 lines
1.2 KiB
C
44 lines
1.2 KiB
C
/* vi: set sw=4 ts=4: */
|
|
/*
|
|
* Mini logname implementation for busybox
|
|
*
|
|
* Copyright (C) 2000 Edward Betts <edward@debian.org>.
|
|
*
|
|
* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
|
|
*/
|
|
|
|
/* BB_AUDIT SUSv3 compliant */
|
|
/* http://www.opengroup.org/onlinepubs/007904975/utilities/logname.html */
|
|
|
|
/* Mar 16, 2003 Manuel Novoa III (mjn3@codepoet.org)
|
|
*
|
|
* SUSv3 specifies the string used is that returned from getlogin().
|
|
* The previous implementation used getpwuid() for geteuid(), which
|
|
* is _not_ the same. Erik apparently made this change almost 3 years
|
|
* ago to avoid failing when no utmp was available. However, the
|
|
* correct course of action wrt SUSv3 for a failing getlogin() is
|
|
* a diagnostic message and an error return.
|
|
*/
|
|
|
|
#include "libbb.h"
|
|
|
|
/* This is a NOFORK applet. Be very careful! */
|
|
|
|
int logname_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
|
int logname_main(int argc, char **argv UNUSED_PARAM)
|
|
{
|
|
char buf[64];
|
|
|
|
if (argc > 1) {
|
|
bb_show_usage();
|
|
}
|
|
|
|
/* Using _r function - avoid pulling in static buffer from libc */
|
|
if (getlogin_r(buf, sizeof(buf)) == 0) {
|
|
puts(buf);
|
|
return fflush(stdout);
|
|
}
|
|
|
|
bb_perror_msg_and_die("getlogin");
|
|
}
|