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/* Copyright (C) 2010-2020 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <pwd.h>
#include <unistd.h>
#include <not-cancel.h>
#define STATIC static
#define getlogin getlogin_fd0
#include <sysdeps/unix/getlogin.c>
#undef getlogin
/* Return the login name of the user, or NULL if it can't be determined.
The returned pointer, if not NULL, is good only until the next call. */
char *
getlogin (void)
{
int res = __getlogin_r_loginuid (name, sizeof (name));
if (res >= 0)
return res == 0 ? name : NULL;
return getlogin_fd0 ();
}
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