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      1 /*
      2  *
      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 /*
     21  * NAME
     22  *	uname02.c
     23  *
     24  * DESCRIPTION
     25  *	uname02 - call uname() with an invalid address to produce a failure
     26  *
     27  * ALGORITHM
     28  *	loop if that option was specified
     29  *	issue the system call
     30  *	check the errno value
     31  *	  issue a PASS message if we get EFAULT - errno 14
     32  *	otherwise, the tests fails
     33  *	  issue a FAIL message
     34  *	  break any remaining tests
     35  *	  call cleanup
     36  *
     37  * USAGE:  <for command-line>
     38  *  uname02 [-c n] [-e] [-i n] [-I x] [-p x] [-t]
     39  *		where,  -c n : Run n copies concurrently.
     40  *			-e   : Turn on errno logging.
     41  *			-i n : Execute test n times.
     42  *			-I x : Execute test for x seconds.
     43  *			-P x : Pause for x seconds between iterations.
     44  *			-t   : Turn on syscall timing.
     45  *
     46  * History
     47  *	07/2001 John George
     48  *		-Ported
     49  *
     50  * Restrictions
     51  *	none
     52  */
     53 
     54 #include "test.h"
     55 
     56 #include <errno.h>
     57 #include <sys/utsname.h>
     58 
     59 void cleanup(void);
     60 void setup(void);
     61 
     62 char *TCID = "uname02";
     63 int TST_TOTAL = 1;
     64 
     65 #if !defined(UCLINUX)
     66 
     67 int main(int ac, char **av)
     68 {
     69 	int lc;
     70 
     71 	tst_parse_opts(ac, av, NULL, NULL);
     72 
     73 	setup();		/* global setup */
     74 
     75 	for (lc = 0; TEST_LOOPING(lc); lc++) {
     76 		tst_count = 0;
     77 
     78 		/*
     79 		 * call the system call with the TEST() macro
     80 		 * send -1 for an illegal address
     81 		 */
     82 
     83 		TEST(uname((struct utsname *)-1));
     84 
     85 		if (TEST_RETURN == 0)
     86 			tst_resm(TFAIL, "call succeed when failure expected");
     87 
     88 		switch (TEST_ERRNO) {
     89 		case EFAULT:
     90 			tst_resm(TPASS | TTERRNO, "uname failed as expected");
     91 			break;
     92 		default:
     93 			tst_resm(TFAIL | TTERRNO, "uname failed unexpectedly");
     94 		}
     95 	}
     96 
     97 	cleanup();
     98 
     99 	tst_exit();
    100 
    101 }
    102 
    103 void setup(void)
    104 {
    105 
    106 	tst_sig(FORK, DEF_HANDLER, cleanup);
    107 
    108 	TEST_PAUSE;
    109 }
    110 
    111 void cleanup(void)
    112 {
    113 }
    114 #else
    115 int main(void)
    116 {
    117 	tst_resm(TCONF, NULL, "test is not available on uClinux");
    118 }
    119 #endif /* if !defined(UCLINUX) */
    120