|
Packit Service |
0b5c9d |
/* Test for endpwent->getpwent crash for BZ #24695
|
|
Packit Service |
0b5c9d |
Copyright (C) 2019 Free Software Foundation, Inc.
|
|
Packit Service |
0b5c9d |
This file is part of the GNU C Library.
|
|
Packit Service |
0b5c9d |
|
|
Packit Service |
0b5c9d |
The GNU C Library is free software; you can redistribute it and/or
|
|
Packit Service |
0b5c9d |
modify it under the terms of the GNU Lesser General Public
|
|
Packit Service |
0b5c9d |
License as published by the Free Software Foundation; either
|
|
Packit Service |
0b5c9d |
version 2.1 of the License, or (at your option) any later version.
|
|
Packit Service |
0b5c9d |
|
|
Packit Service |
0b5c9d |
The GNU C Library is distributed in the hope that it will be useful,
|
|
Packit Service |
0b5c9d |
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
Packit Service |
0b5c9d |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Packit Service |
0b5c9d |
Lesser General Public License for more details.
|
|
Packit Service |
0b5c9d |
|
|
Packit Service |
0b5c9d |
You should have received a copy of the GNU Lesser General Public
|
|
Packit Service |
0b5c9d |
License along with the GNU C Library; if not, see
|
|
Packit Service |
0b5c9d |
<http://www.gnu.org/licenses/>. */
|
|
Packit Service |
0b5c9d |
|
|
Packit Service |
0b5c9d |
#include <stdlib.h>
|
|
Packit Service |
0b5c9d |
#include <string.h>
|
|
Packit Service |
0b5c9d |
#include <sys/types.h>
|
|
Packit Service |
0b5c9d |
#include <pwd.h>
|
|
Packit Service |
0b5c9d |
|
|
Packit Service |
0b5c9d |
#include <support/support.h>
|
|
Packit Service |
0b5c9d |
#include <support/check.h>
|
|
Packit Service |
0b5c9d |
|
|
Packit Service |
0b5c9d |
/* It is entirely allowed to start with a getpwent call without
|
|
Packit Service |
0b5c9d |
resetting the state of the service via a call to setpwent.
|
|
Packit Service |
0b5c9d |
You can also call getpwent more times than you have entries in
|
|
Packit Service |
0b5c9d |
the service, and it should not fail. This test iteratates the
|
|
Packit Service |
0b5c9d |
database once, gets to the end, and then attempts a second
|
|
Packit Service |
0b5c9d |
iteration to look for crashes. */
|
|
Packit Service |
0b5c9d |
|
|
Packit Service |
0b5c9d |
static void
|
|
Packit Service |
0b5c9d |
try_it (void)
|
|
Packit Service |
0b5c9d |
{
|
|
Packit Service |
0b5c9d |
struct passwd *pw;
|
|
Packit Service |
0b5c9d |
|
|
Packit Service |
0b5c9d |
/* setpwent is intentionally omitted here. The first call to
|
|
Packit Service |
0b5c9d |
getpwent detects that it's first and initializes. The second
|
|
Packit Service |
0b5c9d |
time try_it is called, this "first call" was not detected before
|
|
Packit Service |
0b5c9d |
the fix, and getpwent would crash. */
|
|
Packit Service |
0b5c9d |
|
|
Packit Service |
0b5c9d |
while ((pw = getpwent ()) != NULL)
|
|
Packit Service |
0b5c9d |
;
|
|
Packit Service |
0b5c9d |
|
|
Packit Service |
0b5c9d |
/* We only care if this segfaults or not. */
|
|
Packit Service |
0b5c9d |
endpwent ();
|
|
Packit Service |
0b5c9d |
}
|
|
Packit Service |
0b5c9d |
|
|
Packit Service |
0b5c9d |
static int
|
|
Packit Service |
0b5c9d |
do_test (void)
|
|
Packit Service |
0b5c9d |
{
|
|
Packit Service |
0b5c9d |
char *cmd;
|
|
Packit Service |
0b5c9d |
|
|
Packit Service |
0b5c9d |
cmd = xasprintf ("%s/makedb -o /var/db/passwd.db /var/db/passwd.in",
|
|
Packit Service |
0b5c9d |
support_bindir_prefix);
|
|
Packit Service |
0b5c9d |
system (cmd);
|
|
Packit Service |
0b5c9d |
free (cmd);
|
|
Packit Service |
0b5c9d |
|
|
Packit Service |
0b5c9d |
try_it ();
|
|
Packit Service |
0b5c9d |
try_it ();
|
|
Packit Service |
0b5c9d |
|
|
Packit Service |
0b5c9d |
return 0;
|
|
Packit Service |
0b5c9d |
}
|
|
Packit Service |
0b5c9d |
#include <support/test-driver.c>
|