text: /*
   * Copyright (c) 2000 Silicon Graphics, Inc.  All Rights Reserved.
   *  AUTHOR          : Bob Clark
   *  CO-PILOT        : Barrie Kletscher
   *  DATE STARTED    : 9/26/86
   * Copyright (C) 2015 Cyril Hrubis <chrubis@suse.cz>
   *
   * 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.
   *
   * Further, this software is distributed without any warranty that it is
   * free of the rightful claim of any third person regarding infringement
   * or the like.  Any license provided herein, whether implied or
   * otherwise, applies only to this software file.  Patent licenses, if
   * any, provided herein do not apply to combinations of this program with
   * other software, or any other product whatsoever.
   *
   * 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.
   *
   * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
   * Mountain View, CA  94043, or:
   *
   * http://www.sgi.com
   *
   * For further information regarding this notice, see:
   *
   * http://oss.sgi.com/projects/GenInfo/NoticeExplan/
   */
  /*
   * TEST ITEMS
   *	1. sighold action to turn off the receipt of all signals was done
   *	   without error.
   *	2. After signals were held, and sent, no signals were trapped.
   */
  #define _XOPEN_SOURCE 500
  #include <errno.h>
  #include <signal.h>
  #include <string.h>
  #include <fcntl.h>
  #include <stdlib.h>
  #include <sys/types.h>
  #include <sys/wait.h>
  #include "test.h"
  #include "safe_macros.h"
  #include "lapi/signal.h"
  
  /* _XOPEN_SOURCE disables NSIG */
  #ifndef NSIG
  # define NSIG _NSIG
  #endif
  
  /* ensure NUMSIGS is defined */
  #ifndef NUMSIGS
  # define NUMSIGS NSIG
  #endif
  
  char *TCID = "sighold02";
  int TST_TOTAL = 2;
  
  static int pid;
  static void do_child(void);
  static void setup(void);
  static void cleanup(void);
  
  static int sigs_catched;
  static int sigs_map[NUMSIGS];
  
  static int skip_sig(int sig)
  {
  	if (sig >= __SIGRTMIN && sig < SIGRTMIN)
  		return 1;
  
  	switch (sig) {
  	case SIGCHLD:
  	case SIGKILL:
  	case SIGALRM:
  	case SIGSTOP:
  		return 1;
  	default:
  		return 0;
  	}
  }
  
  int main(int ac, char **av)
  {
  	int sig;
  	int lc;
  
  	tst_parse_opts(ac, av, NULL, NULL);
  
  #ifdef UCLINUX
  	maybe_run_child(&do_child, "");
  #endif
  
  	setup();
  
  	for (lc = 0; TEST_LOOPING(lc); lc++) {
  		if ((pid = FORK_OR_VFORK()) < 0) {
  			tst_brkm(TBROK | TERRNO, NULL, "fork() failed");
  		} else if (pid > 0) {
  			TST_SAFE_CHECKPOINT_WAIT(NULL, 0);
  
  			for (sig = 1; sig < NUMSIGS; sig++) {
  				if (skip_sig(sig))
  					continue;
  				SAFE_KILL(NULL, pid, sig);
  			}
  
  			TST_SAFE_CHECKPOINT_WAKE(NULL, 0);
  			tst_record_childstatus(cleanup, pid);
  		} else {
  
  #ifdef UCLINUX
  			if (self_exec(av[0], "") < 0) {
  				tst_brkm(TBROK | TERRNO, NULL,
  					 "self_exec() failed");
  			}
  #else
  			do_child();
  #endif
  		}
  	}
  
  	cleanup();
  	tst_exit();
  }
  
  static void handle_sigs(int sig)
  {
  	sigs_map[sig] = 1;
  	sigs_catched++;
  }
  
  void do_child(void)
  {
  	int cnt;
  	int sig;
  
  	/* set up signal handler routine */
  	for (sig = 1; sig < NUMSIGS; sig++) {
  		if (skip_sig(sig))
  			continue;
  
  		if (signal(sig, handle_sigs) == SIG_ERR) {
  			tst_resm(TBROK | TERRNO, "signal() %i(%s) failed",
  				 sig, tst_strsig(sig));
  		}
  	}
  
  	/* all set up to catch signals, now hold them */
  	for (cnt = 0, sig = 1; sig < NUMSIGS; sig++) {
  		if (skip_sig(sig))
  			continue;
  		cnt++;
  		TEST(sighold(sig));
  		if (TEST_RETURN != 0) {
  			tst_resm(TBROK | TTERRNO, "sighold() %i(%s) failed",
  				 sig, tst_strsig(sig));
  		}
  	}
  
  	TST_SAFE_CHECKPOINT_WAKE_AND_WAIT(NULL, 0);
  
  	if (!sigs_catched) {
  		tst_resm(TPASS, "All signals were hold");
  		tst_exit();
  	}
  
  	tst_resm(TFAIL, "Signal handler was executed");
  
  	for (sig = 1; sig < NUMSIGS; sig++) {
  		if (sigs_map[sig]) {
  			tst_resm(TINFO, "Signal %i(%s) catched",
  			         sig, tst_strsig(sig));
  		}
  	}
  
  	tst_exit();
  }
  
  static void setup(void)
  {
  	tst_sig(FORK, DEF_HANDLER, NULL);
  
  	tst_tmpdir();
  
  	TST_CHECKPOINT_INIT(tst_rmdir);
  
  	TEST_PAUSE;
  }
  
  static void cleanup(void)
  {
  	tst_rmdir();
  }
  