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      1 /*
      2  *   Copyright (C) Bull S.A. 2001
      3  *   Copyright (c) International Business Machines  Corp., 2001
      4  *
      5  *   This program is free software;  you can redistribute it and/or modify
      6  *   it under the terms of the GNU General Public License as published by
      7  *   the Free Software Foundation; either version 2 of the License, or
      8  *   (at your option) any later version.
      9  *
     10  *   This program is distributed in the hope that it will be useful,
     11  *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
     12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
     13  *   the GNU General Public License for more details.
     14  *
     15  *   You should have received a copy of the GNU General Public License
     16  *   along with this program;  if not, write to the Free Software
     17  *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
     18  */
     19 /*
     20  * Test Name: mknod09
     21  *
     22  * Test Description:
     23  *  Verify that, mknod() fails with -1 and sets errno to EINVAL if the mode is
     24  *  different than a normal file, device special file or FIFO.
     25  *
     26  * Expected Result:
     27  *  mknod() should fail with return value -1 and sets expected errno.
     28  *
     29  * Algorithm:
     30  *  Setup:
     31  *   Setup signal handling.
     32  *   Check id is super/root
     33  *   Pause for SIGUSR1 if option specified.
     34  *   Create temporary directory.
     35  *
     36  *  Test:
     37  *   Loop if the proper options are given.
     38  *   Execute system call
     39  *   Check return code, if system call failed (return=-1)
     40  *	if errno set == expected errno
     41  *		Issue sys call fails with expected return value and errno.
     42  *	Otherwise,
     43  *		Issue sys call fails with unexpected errno.
     44  *   Otherwise,
     45  *	Issue sys call returns unexpected value.
     46  *
     47  *  Cleanup:
     48  *   Print errno log and/or timing stats if options given
     49  *   Delete the temporary directory created.
     50  *
     51  * Usage:  <for command-line>
     52  *  mknod09 [-c n] [-e] [-f] [-i n] [-I x] [-P x] [-t]
     53  *     where,  -c n : Run n copies concurrently.
     54  *             -e   : Turn on errno logging.
     55  *             -f   : Turn off functionality Testing.
     56  *	       -i n : Execute test n times.
     57  *	       -I x : Execute test for x seconds.
     58  *	       -P x : Pause for x seconds between iterations.
     59  *	       -t   : Turn on syscall timing.
     60  *
     61  * HISTORY
     62  *	05/2002 Ported by Andr Merlier
     63  *
     64  * RESTRICTIONS:
     65  *  This test should be run by 'super-user' (root) only.
     66  *
     67  */
     68 
     69 #include <errno.h>
     70 #include <sys/stat.h>
     71 #include "test.h"
     72 
     73 #define MODE_RWX	S_IFMT	/* mode different from those expected */
     74 #define TNODE		"tnode"	/*pathname */
     75 
     76 char *TCID = "mknod09";
     77 int TST_TOTAL = 1;
     78 
     79 void setup();			/* setup function for the test */
     80 void cleanup();			/* cleanup function for the test */
     81 
     82 int main(int ac, char **av)
     83 {
     84 	int lc;
     85 	char *test_desc;	/* test specific error message */
     86 
     87 	tst_parse_opts(ac, av, NULL, NULL);
     88 
     89 	setup();
     90 
     91 	for (lc = 0; TEST_LOOPING(lc); lc++) {
     92 		test_desc = "EINVAL";
     93 
     94 		tst_count = 0;
     95 
     96 		/*
     97 		 * Call mknod(2) to test condition.
     98 		 * verify that it fails with -1 return value and
     99 		 * sets appropriate errno.
    100 		 */
    101 		TEST(mknod(TNODE, MODE_RWX, 0));
    102 
    103 		/* Check return code from mknod(2) */
    104 		if (TEST_RETURN != -1) {
    105 			tst_resm(TFAIL, "mknod() returned %ld,"
    106 				 "expected -1, errno=%d", TEST_RETURN,
    107 				 EINVAL);
    108 		} else {
    109 			if (TEST_ERRNO == EINVAL) {
    110 				tst_resm(TPASS, "mknod() fails with expected "
    111 					 "error EINVAL errno:%d", TEST_ERRNO);
    112 			} else {
    113 				tst_resm(TFAIL, "mknod() fails, %s, "
    114 					 "errno=%d, expected errno=%d",
    115 					 test_desc, TEST_ERRNO, EINVAL);
    116 			}
    117 		}
    118 	}
    119 
    120 	cleanup();
    121 
    122 	tst_exit();
    123 }
    124 
    125 /*
    126  * setup(void)
    127  */
    128 void setup(void)
    129 {
    130 	tst_require_root();
    131 
    132 	/* Capture unexpected signals */
    133 	tst_sig(NOFORK, DEF_HANDLER, cleanup);
    134 
    135 	TEST_PAUSE;
    136 
    137 	/* Make a temp dir and cd to it */
    138 	tst_tmpdir();
    139 }
    140 
    141 /*
    142  * cleanup()
    143  */
    144 void cleanup(void)
    145 {
    146 
    147 	tst_rmdir();
    148 
    149 }
    150