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189 lines
4.9 KiB
189 lines
4.9 KiB
/*
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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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* Test Name: getresgid02
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*
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* Test Description:
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* Verify that getresgid() will be successful to get the real, effective
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* and saved user ids after calling process invokes setregid() to change
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* the effective/saved gids to that of specified user.
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*
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* Expected Result:
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* getresgid() should return with 0 value and the real/effective/saved
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* user ids should match the expected values.
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*
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* Algorithm:
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* Setup:
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* Setup signal handling.
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* Pause for SIGUSR1 if option specified.
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*
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* Test:
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* Loop if the proper options are given.
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* Execute system call
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* Check return code, if system call failed (return=-1)
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* Log the errno and Issue a FAIL message.
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* Otherwise,
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* Verify the Functionality of system call
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* if successful,
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* Issue Functionality-Pass message.
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* Otherwise,
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* Issue Functionality-Fail message.
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* Cleanup:
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* Print errno log and/or timing stats if options given
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*
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* Usage: <for command-line>
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* getresgid02 [-c n] [-f] [-i n] [-I x] [-P x] [-t]
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* where, -c n : Run n copies concurrently.
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* -f : Turn off functionality Testing.
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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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* This test should be run by 'super-user' (root) only.
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*
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*/
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#include <stdio.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <string.h>
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#include <signal.h>
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#include <pwd.h>
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#include "test.h"
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#include "compat_16.h"
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#define LTPUSER "nobody"
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char *TCID = "getresgid02";
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int TST_TOTAL = 1;
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GID_T pr_gid, pe_gid, ps_gid; /* calling process real/effective/saved gid */
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void setup(); /* Main setup function of test */
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void cleanup(); /* cleanup function for the test */
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int main(int ac, char **av)
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{
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int lc;
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GID_T real_gid, /* real/eff./saved user id from getresgid() */
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eff_gid, sav_gid;
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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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/*
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* Call getresgid() to get the real/effective/saved
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* user id's of the calling process after
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* setregid() in setup.
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*/
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TEST(GETRESGID(cleanup, &real_gid, &eff_gid, &sav_gid));
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if (TEST_RETURN == -1) {
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tst_resm(TFAIL, "getresgid() Failed, errno=%d : %s",
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TEST_ERRNO, strerror(TEST_ERRNO));
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continue;
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}
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/*
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* Verify the real/effective/saved gid
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* values returned by getresgid with the
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* expected values.
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*/
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if ((real_gid != pr_gid) || (eff_gid != pe_gid) ||
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(sav_gid != ps_gid)) {
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tst_resm(TFAIL, "real:%d, effective:%d, "
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"saved-user:%d ids differ",
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real_gid, eff_gid, sav_gid);
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} else {
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tst_resm(TPASS, "Functionality of getresgid() "
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"successful");
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}
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}
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cleanup();
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tst_exit();
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}
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/*
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* setup() - performs all ONE TIME setup for this test.
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* Get the real/effective/saved user id of the calling process.
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*/
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void setup(void)
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{
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struct passwd *user_id; /* passwd struct for test user */
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tst_require_root();
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tst_sig(NOFORK, DEF_HANDLER, cleanup);
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TEST_PAUSE;
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/* Real user-id of the calling process */
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pr_gid = getgid();
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/* Get effective gid of LTPUSER user from passwd file */
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if ((user_id = getpwnam(LTPUSER)) == NULL) {
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tst_brkm(TBROK, cleanup, "getpwnam(%s) Failed", LTPUSER);
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}
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/* Effective user-id of the test-user LTPUSER */
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pe_gid = user_id->pw_gid;
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/* Saved user-id of the test-user LTPUSER */
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ps_gid = user_id->pw_gid;
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/*
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* Set the effective user-id of the process to that of
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* test user LTPUSER
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* The real user id remains same as of caller.
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*/
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if (setregid(-1, ps_gid) < 0) {
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tst_brkm(TBROK, cleanup,
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"setregid(-1, %d) Fails, errno:%d : %s",
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ps_gid, errno, strerror(errno));
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}
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}
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/*
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* cleanup() - performs all ONE TIME cleanup for this test at
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* completion or premature exit.
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* Restore the test process gid to root.
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*/
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void cleanup(void)
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{
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/* Reset the effective/saved gid of the calling process */
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if (setregid(-1, pr_gid) < 0) {
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tst_brkm(TBROK, NULL, "resetting process effective gid failed");
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}
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}
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