1  /* Test of fork updating child universe's pthread structures.
       2     Copyright (C) 2003-2023 Free Software Foundation, Inc.
       3     This file is part of the GNU C Library.
       4  
       5     The GNU C Library is free software; you can redistribute it and/or
       6     modify it under the terms of the GNU Lesser General Public
       7     License as published by the Free Software Foundation; either
       8     version 2.1 of the License, or (at your option) any later version.
       9  
      10     The GNU C Library 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 the GNU
      13     Lesser General Public License for more details.
      14  
      15     You should have received a copy of the GNU Lesser General Public
      16     License along with the GNU C Library; if not, see
      17     <https://www.gnu.org/licenses/>.  */
      18  
      19  #include <errno.h>
      20  #include <pthread.h>
      21  #include <stdio.h>
      22  #include <unistd.h>
      23  #include <sys/types.h>
      24  #include <sys/wait.h>
      25  #include <string.h>
      26  
      27  
      28  static int
      29  do_test (void)
      30  {
      31    pthread_t me = pthread_self ();
      32  
      33    pid_t pid = fork ();
      34  
      35    if (pid < 0)
      36      {
      37        printf ("fork: %m\n");
      38        return 1;
      39      }
      40  
      41    if (pid == 0)
      42      {
      43        int err = pthread_kill (me, SIGTERM);
      44        printf ("pthread_kill returned: %s\n", strerror (err));
      45        return 3;
      46      }
      47  
      48    int status;
      49    errno = 0;
      50    if (wait (&status) != pid)
      51      printf ("wait failed: %m\n");
      52    else if (WIFSIGNALED (status) && WTERMSIG (status) == SIGTERM)
      53      {
      54        printf ("child correctly died with SIGTERM\n");
      55        return 0;
      56      }
      57    else
      58      printf ("child died with bad status %#x\n", status);
      59  
      60    return 1;
      61  }
      62  
      63  #define TEST_FUNCTION do_test ()
      64  #include "../test-skeleton.c"