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Diffstat (limited to 'winsup/testsuite/winsup.api/ltp/getpgid02.c')
-rw-r--r-- | winsup/testsuite/winsup.api/ltp/getpgid02.c | 172 |
1 files changed, 172 insertions, 0 deletions
diff --git a/winsup/testsuite/winsup.api/ltp/getpgid02.c b/winsup/testsuite/winsup.api/ltp/getpgid02.c new file mode 100644 index 000000000..afb80f261 --- /dev/null +++ b/winsup/testsuite/winsup.api/ltp/getpgid02.c @@ -0,0 +1,172 @@ +/* + * + * Copyright (c) International Business Machines Corp., 2001 + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See + * the GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +/* + * NAME + * getpgid02.c + * + * DESCRIPTION + * Testcase to check the basic functionality of getpgid(). + * + * ALGORITHM + * test 1: Does getpgid(-99) and expects ESRCH. + * test 2: Searches an unused pid and expects ESRCH. + * + * USAGE: <for command-line> + * getpgid02 [-c n] [-e] [-i n] [-I x] [-P x] [-t] + * where, -c n : Run n copies concurrently. + * -e : Turn on errno logging. + * -i n : Execute test n times. + * -I x : Execute test for x seconds. + * -P x : Pause for x seconds between iterations. + * -t : Turn on syscall timing. + * + * HISTORY + * 07/2001 Ported by Wayne Boyer + * + * RESTRICTIONS + * none + */ + +#include <sys/types.h> +#include <errno.h> +#include <varargs.h> +#include <sys/wait.h> +#include <test.h> +#include <usctest.h> + +void setup(void); +void cleanup(void); + +char *TCID = "getpgid01"; +int TST_TOTAL = 2; +extern int Tst_count; + +int pgid_0, pgid_1; +#define BADPID -99 + +int exp_enos[]={ESRCH, 0}; + +struct test_case_t { + int *id; + int error; +} TC[] = { + /* The pid value is negative */ + {&pgid_0, ESRCH}, + + /* The pid value does not match any process */ + {&pgid_1, ESRCH} +}; + +main(int ac, char **av) +{ + int lc; /* loop counter */ + int i; + const char *msg; /* message returned by parse_opts */ + + /* parse standard options */ + if ((msg = parse_opts(ac, av, (option_t *)NULL, NULL)) != (char *)NULL){ + tst_brkm(TBROK, cleanup, "OPTION PARSING ERROR - %s", msg); + } + + setup(); + + /* set up the expected errnos */ + TEST_EXP_ENOS(exp_enos); + + /* check looping state if -i option given */ + for (lc = 0; TEST_LOOPING(lc); lc++) { + /* reset Tst_count in case we are looping */ + Tst_count = 0; + + + /* loop through the test cases */ + for (i = 0; i < TST_TOTAL; i++) { + + TEST(getpgid(*TC[i].id)); + + if (TEST_RETURN != -1) { + tst_resm(TFAIL, "call succeeded unexpectedly"); + continue; + } + + TEST_ERROR_LOG(TEST_ERRNO); + + if (TEST_ERRNO == TC[i].error) { + tst_resm(TPASS, "expected failure - " + "errno = %d : %s", TEST_ERRNO, + strerror(TEST_ERRNO)); + } else { + tst_resm(TFAIL, "unexpected error - %d : %s - " + "expected %d", TEST_ERRNO, + strerror(TEST_ERRNO), TC[i].error); + } + } + } + cleanup(); + + /*NOTREACHED*/ +} + +/* + * setup() - performs all ONE TIME setup for this test. + */ +void +setup() +{ + /* capture signals */ + tst_sig(NOFORK, DEF_HANDLER, cleanup); + + /* Pause if that option was specified */ + TEST_PAUSE; + + pgid_0 = BADPID; + + /* + * Find a pid that isn't currently being used. Start + * at 'our pid - 1' and go backwards until we find one. + * In this way, we can be reasonably sure that the pid + * we find won't be reused for a while as new pids are + * allocated counting up to PID_MAX. + */ + for (pgid_1 = getpid() - 1; --pgid_1 > 0; ) { + if (kill(pgid_1, 0) < 0 && errno == ESRCH) { + break; + } + } +} + + +/* + * cleanup() - performs all ONE TIME cleanup for this test at + * completion or premature exit. + */ +void +cleanup() +{ + /* + * print timing stats if that option was specified. + * print errno log if that option was specified. + */ + TEST_CLEANUP; + + /* exit with return code appropriate for results */ + tst_exit(); +} + |