234 lines
6.0 KiB
C
234 lines
6.0 KiB
C
/*
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* Copyright (c) Wipro Technologies Ltd, 2002. All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it would be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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*/
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/**********************************************************
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*
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* TEST IDENTIFIER : syslog12
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*
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* EXECUTED BY : root / superuser
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*
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* TEST TITLE : Checking error conditions for syslog(2)
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*
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* TEST CASE TOTAL : 7
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*
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* AUTHOR : Madhu T L <madhu.tarikere@wipro.com>
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*
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* SIGNALS
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* Uses SIGUSR1 to pause before test if option set.
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* (See the parse_opts(3) man page).
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*
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* DESCRIPTION
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* Verify that,
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* 1. syslog(2) fails with EINVAL for invalid type/command
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* 2. syslog(2) fails with EFAULT for buffer outside program's accessible
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* address space.
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* 3. syslog(2) fails with EINVAL for NULL buffer argument.
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* 4. syslog(2) fails with EINVAL for length arg. set to negative value.
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* 5. syslog(2) fails with EPERM for non-root user.
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* 6. syslog(2) fails with EINVAL for console level less than 0.
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* 7. syslog(2) fails with EINVAL for console level greater than 8.
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*
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* Setup:
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* Setup signal handling.
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* Test caller is superuser
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* Check existence of user nobody
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* Set expected errnos
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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 value and errno, if matching,
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* Issue PASS message
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* Otherwise,
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* Issue FAIL message
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*
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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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* syslog12 [-c n] [-e] [-f] [-h] [-i n] [-I x] [-p] [-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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* -f : Turn off functional testing
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* -h : Show help screen
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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 : Pause for SIGUSR1 before starting
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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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****************************************************************/
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#include <errno.h>
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#include <pwd.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <signal.h>
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#include <linux/unistd.h>
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#include <sys/syscall.h>
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#include "test.h"
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#include "safe_macros.h"
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#define EXP_RET_VAL -1
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struct test_case_t { /* test case structure */
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int type; /* 1st arg */
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char *buf; /* 2nd arg */
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int len; /* 3rd arg */
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int exp_errno; /* Expected errno */
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int (*setup) (void); /* Individual setup routine */
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void (*cleanup) (void); /* Individual cleanup routine */
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char *desc; /* Test description */
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};
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char *TCID = "syslog12";
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static int testno;
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static char buf;
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static struct passwd *ltpuser;
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static void setup(void);
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static void cleanup(void);
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static int setup1(void);
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static void cleanup1(void);
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#define syslog(arg1, arg2, arg3) syscall(__NR_syslog, arg1, arg2, arg3)
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static struct test_case_t tdat[] = {
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{100, &buf, 0, EINVAL, NULL, NULL, "invalid type/command"},
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{2, NULL, 0, EINVAL, NULL, NULL, "NULL buffer argument"},
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{3, &buf, -1, EINVAL, NULL, NULL, "negative length argument"},
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{2, &buf, 0, EPERM, setup1, cleanup1, "non-root user"},
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{8, &buf, -1, EINVAL, NULL, NULL, "console level less than 0"},
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{8, &buf, 9, EINVAL, NULL, NULL, "console level greater than 8"},
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};
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int TST_TOTAL = sizeof(tdat) / sizeof(tdat[0]);
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void timeout(int sig)
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{
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tst_resm(TWARN, "syslog() timeout after 1s"
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" for %s", tdat[testno].desc);
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}
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int main(int argc, char **argv)
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{
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int lc;
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struct sigaction sa;
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int ret;
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tst_parse_opts(argc, argv, NULL, NULL);
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setup();
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memset(&sa, 0, sizeof(struct sigaction));
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sa.sa_handler = timeout;
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sa.sa_flags = 0;
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sigaction(SIGALRM, &sa, NULL);
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for (lc = 0; TEST_LOOPING(lc); lc++) {
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/* reset tst_count in case we are looping */
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tst_count = 0;
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for (testno = 0; testno < TST_TOTAL; ++testno) {
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if (tdat[testno].setup && tdat[testno].setup()) {
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/* Setup failed, skip this testcase */
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continue;
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}
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alarm(1);
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TEST(syslog(tdat[testno].type, tdat[testno].buf,
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tdat[testno].len));
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alarm(0);
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/* syslog returns an int, so we need to turn the long
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* TEST_RETURN into an int to test with */
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ret = TEST_RETURN;
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if ((ret == EXP_RET_VAL) &&
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(TEST_ERRNO == tdat[testno].exp_errno)) {
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tst_resm(TPASS, "syslog() failed as expected"
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" for %s : errno %d",
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tdat[testno].desc, TEST_ERRNO);
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} else {
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tst_resm(TFAIL, "syslog() returned "
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"unexpected results for %s ; returned"
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" %d (expected %d), errno %d (expected"
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" %d)", tdat[testno].desc,
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ret, EXP_RET_VAL, TEST_ERRNO,
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tdat[testno].exp_errno);
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}
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if (tdat[testno].cleanup) {
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tdat[testno].cleanup();
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}
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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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int setup1(void)
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{
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/* Change effective user id to nodody */
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if (seteuid(ltpuser->pw_uid) == -1) {
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tst_resm(TBROK, "seteuid failed to set the effective"
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" uid to %d", ltpuser->pw_uid);
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return 1;
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}
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return 0;
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}
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void cleanup1(void)
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{
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/* Change effective user id to root */
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SAFE_SETEUID(NULL, 0);
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}
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/*
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* setup()
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* performs all ONE TIME setup for this test
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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_sig(NOFORK, DEF_HANDLER, cleanup);
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/* Check for nobody_uid user id */
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if ((ltpuser = getpwnam("nobody")) == NULL) {
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tst_brkm(TBROK, NULL, "nobody user id doesn't exist");
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}
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/* Pause if that option was specified
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* TEST_PAUSE contains the code to fork the test with the -c option.
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*/
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TEST_PAUSE;
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}
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/*
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* cleanup()
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* performs all ONE TIME cleanup for this test at
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* completion or premature exit
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*/
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void cleanup(void)
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{
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}
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