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