171 lines
4.4 KiB
C
171 lines
4.4 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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* Test Name: fchmod03
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*
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* Test Description:
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* Verify that, fchmod(2) will succeed to change the mode of a file
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* and set the sticky bit on it if invoked by non-root (uid != 0)
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* process with the following constraints,
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* - the process is the owner of the file.
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* - the effective group ID or one of the supplementary group ID's of the
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* process is equal to the group ID of the file.
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*
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* Expected Result:
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* fchmod() should return value 0 on success and succeeds to change
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* the mode of specified file, sets sticky bit on it.
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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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* Create temporary directory.
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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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* Delete the temporary directory created.
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*
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* Usage: <for command-line>
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* fchmod03 [-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 'non-super-user' only.
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*
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*/
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#include <stdio.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <errno.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 "safe_macros.h"
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#include "fchmod.h"
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int fd; /* file descriptor for test file */
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char *TCID = "fchmod03";
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int TST_TOTAL = 1;
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char nobody_uid[] = "nobody";
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struct passwd *ltpuser;
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void setup(); /* Main setup function for the test */
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void cleanup(); /* Main cleanup function for the test */
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int main(int ac, char **av)
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{
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struct stat stat_buf; /* stat struct. */
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int lc;
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mode_t file_mode; /* mode permissions set on testfile */
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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(fchmod(fd, PERMS));
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if (TEST_RETURN == -1) {
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tst_resm(TFAIL | TTERRNO, "fchmod failed");
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continue;
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}
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/*
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* Get the file information using
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* fstat(2).
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*/
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if (fstat(fd, &stat_buf) == -1)
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tst_brkm(TFAIL | TERRNO, cleanup,
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"fstat failed");
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file_mode = stat_buf.st_mode;
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/* Verify STICKY BIT set on testfile */
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if ((file_mode & PERMS) != PERMS)
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tst_resm(TFAIL, "%s: Incorrect modes 0%3o, "
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"Expected 0777", TESTFILE, file_mode);
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else
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tst_resm(TPASS, "Functionality of fchmod(%d, "
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"%#o) successful", fd, PERMS);
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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_sig(NOFORK, DEF_HANDLER, cleanup);
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tst_require_root();
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ltpuser = getpwnam(nobody_uid);
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if (ltpuser == NULL)
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tst_brkm(TBROK | TERRNO, NULL, "getpwnam failed");
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SAFE_SETEUID(NULL, ltpuser->pw_uid);
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TEST_PAUSE;
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tst_tmpdir();
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/*
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* Create a test file under temporary directory with specified
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* mode permissios and set the ownership of the test file to the
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* uid/gid of guest user.
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*/
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if ((fd = open(TESTFILE, O_RDWR | O_CREAT, FILE_MODE)) == -1)
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tst_brkm(TBROK | TERRNO, cleanup, "open failed");
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}
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void cleanup(void)
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{
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if (close(fd) == -1)
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tst_resm(TWARN | TERRNO, "close failed");
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tst_rmdir();
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}
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