117 lines
2.5 KiB
C
117 lines
2.5 KiB
C
/*
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*
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* Copyright (c) International Business Machines Corp., 2001
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
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* the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/*
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* NAME
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* chroot01.c
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*
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* DESCRIPTION
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* Testcase to check the whether chroot sets errno to EPERM.
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*
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* ALGORITHM
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* As a non-root user attempt to perform chroot() to a directory. The
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* chroot() call should fail with EPERM
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*
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* USAGE: <for command-line>
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* chroot01 [-c n] [-e] [-i n] [-I x] [-P x] [-t]
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* where, -c n : Run n copies concurrently.
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* -e : Turn on errno logging.
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* -i n : Execute test n times.
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* -I x : Execute test for x seconds.
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* -P x : Pause for x seconds between iterations.
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* -t : Turn on syscall timing.
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*
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* HISTORY
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* 07/2001 Ported by Wayne Boyer
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*
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* RESTRICTIONS
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* Must be run as non-root user.
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*/
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#include <stdio.h>
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#include <errno.h>
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#include "test.h"
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#include "safe_macros.h"
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#include <pwd.h>
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char *TCID = "chroot01";
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int TST_TOTAL = 1;
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int fail;
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char *path;
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char nobody_uid[] = "nobody";
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struct passwd *ltpuser;
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void setup(void);
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void cleanup(void);
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int main(int ac, char **av)
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{
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int lc;
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tst_parse_opts(ac, av, NULL, NULL);
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setup();
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for (lc = 0; TEST_LOOPING(lc); lc++) {
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tst_count = 0;
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TEST(chroot(path));
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if (TEST_RETURN != -1)
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tst_resm(TFAIL, "call succeeded unexpectedly");
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else if (errno != EPERM)
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tst_resm(TFAIL | TTERRNO, "chroot failed unexpectedly");
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else
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tst_resm(TPASS, "chroot set errno to EPERM.");
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}
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cleanup();
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tst_exit();
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}
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void setup(void)
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{
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tst_require_root();
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tst_tmpdir();
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path = tst_get_tmpdir();
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if ((ltpuser = getpwnam(nobody_uid)) == NULL)
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tst_brkm(TBROK | TERRNO, cleanup,
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"getpwnam(\"nobody\") failed");
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SAFE_SETEUID(cleanup, ltpuser->pw_uid);
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tst_sig(NOFORK, DEF_HANDLER, cleanup);
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TEST_PAUSE;
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}
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void cleanup(void)
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{
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SAFE_SETEUID(NULL, 0);
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free(path);
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tst_rmdir();
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}
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