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      1 /*
      2  * Copyright (c) International Business Machines  Corp., 2001
      3  *  07/2001 Ported by Wayne Boyer
      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 Foundation,
     17  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
     18  */
     19 /*
     20  * Test Description:
     21  *  pause() does not return due to receipt of SIGKILL signal and specified
     22  *  process should be terminated.
     23  */
     24 #include <unistd.h>
     25 #include <errno.h>
     26 #include <fcntl.h>
     27 #include <sys/wait.h>
     28 
     29 #include "test.h"
     30 #include "safe_macros.h"
     31 
     32 static pid_t cpid;
     33 
     34 char *TCID = "pause03";
     35 int TST_TOTAL = 1;
     36 
     37 static void do_child(void);
     38 static void setup(void);
     39 static void cleanup(void);
     40 
     41 int main(int ac, char **av)
     42 {
     43 	int lc;
     44 	int status;
     45 
     46 	tst_parse_opts(ac, av, NULL, NULL);
     47 #ifdef UCLINUX
     48 	maybe_run_child(&do_child, "");
     49 #endif
     50 
     51 	setup();
     52 
     53 	for (lc = 0; TEST_LOOPING(lc); lc++) {
     54 		tst_count = 0;
     55 
     56 		if ((cpid = FORK_OR_VFORK()) == -1)
     57 			tst_brkm(TBROK | TERRNO, NULL, "fork() failed");
     58 
     59 		if (cpid == 0) {
     60 #ifdef UCLINUX
     61 			if (self_exec(av[0], "") < 0)
     62 				tst_brkm(TBROK, cleanup, "self_exec failed");
     63 #else
     64 			do_child();
     65 #endif
     66 		}
     67 
     68 		TST_PROCESS_STATE_WAIT(cleanup, cpid, 'S');
     69 
     70 		kill(cpid, SIGKILL);
     71 
     72 		SAFE_WAIT(NULL, &status);
     73 
     74 		if (WIFSIGNALED(status) && WTERMSIG(status) == SIGKILL) {
     75 			tst_resm(TPASS, "pause() did not return after SIGKILL");
     76 			continue;
     77 		}
     78 
     79 		if (WIFSIGNALED(status)) {
     80 			tst_resm(TFAIL, "child killed by %s unexpectedly",
     81 			         tst_strsig(WTERMSIG(status)));
     82 			continue;
     83 		}
     84 
     85 		tst_resm(TFAIL, "child exited with %i", WEXITSTATUS(status));
     86 	}
     87 
     88 	cleanup();
     89 	tst_exit();
     90 
     91 }
     92 
     93 void do_child(void)
     94 {
     95 	TEST(pause());
     96 
     97 	tst_resm(TFAIL, "Unexpected return from pause()");
     98 
     99 	exit(0);
    100 }
    101 
    102 void setup(void)
    103 {
    104 	tst_sig(FORK, DEF_HANDLER, cleanup);
    105 
    106 	TEST_PAUSE;
    107 }
    108 
    109 
    110 void cleanup(void)
    111 {
    112 	kill(cpid, SIGKILL);
    113 }
    114