mirror of
https://github.com/sheumann/hush.git
synced 2024-11-09 18:06:39 +00:00
43 lines
1.1 KiB
C
43 lines
1.1 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 <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include "busybox.h"
|
|
|
|
extern int logname_main(int argc, char ATTRIBUTE_UNUSED **argv)
|
|
{
|
|
const char *p;
|
|
|
|
if (argc > 1) {
|
|
bb_show_usage();
|
|
}
|
|
|
|
if ((p = getlogin()) != NULL) {
|
|
puts(p);
|
|
bb_fflush_stdout_and_exit(EXIT_SUCCESS);
|
|
}
|
|
|
|
bb_perror_msg_and_die("getlogin");
|
|
}
|