mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-10 23:30:07 +00:00
49 lines
1.5 KiB
C
49 lines
1.5 KiB
C
/* Reentrant function to return the current login name. Hurd version.
|
|
Copyright (C) 1996-2015 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
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#include <errno.h>
|
|
#include <unistd.h>
|
|
#include <hurd.h>
|
|
#include <string.h>
|
|
|
|
/* Return at most NAME_LEN characters of the login name of the user in NAME.
|
|
If it cannot be determined or some other error occurred, return the error
|
|
code. Otherwise return 0. */
|
|
int
|
|
getlogin_r (name, name_len)
|
|
char *name;
|
|
size_t name_len;
|
|
{
|
|
string_t login;
|
|
error_t err;
|
|
|
|
if (err = __USEPORT (PROC, __proc_getlogin (port, login)))
|
|
return errno = err;
|
|
|
|
size_t len = __strnlen (login, sizeof login - 1) + 1;
|
|
if (len > name_len)
|
|
{
|
|
errno = ERANGE;
|
|
return errno;
|
|
}
|
|
|
|
memcpy (name, login, len);
|
|
return 0;
|
|
}
|
|
libc_hidden_def (getlogin_r)
|