1  /* Copyright (C) 2003-2023 Free Software Foundation, Inc.
       2     This file is part of the GNU C Library.
       3  
       4     The GNU C Library is free software; you can redistribute it and/or
       5     modify it under the terms of the GNU Lesser General Public
       6     License as published by the Free Software Foundation; either
       7     version 2.1 of the License, or (at your option) any later version.
       8  
       9     The GNU C Library is distributed in the hope that it will be useful,
      10     but WITHOUT ANY WARRANTY; without even the implied warranty of
      11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      12     Lesser General Public License for more details.
      13  
      14     You should have received a copy of the GNU Lesser General Public
      15     License along with the GNU C Library; if not, see
      16     <https://www.gnu.org/licenses/>.  */
      17  
      18  #include <errno.h>
      19  #include <error.h>
      20  #include <pthread.h>
      21  #include <stdio.h>
      22  #include <stdlib.h>
      23  #include <string.h>
      24  #include <unistd.h>
      25  
      26  static void *
      27  dummy (void *x)
      28  {
      29    return NULL;
      30  }
      31  
      32  static char buf[sizeof "something\n"];
      33  
      34  static int
      35  do_test (void)
      36  {
      37    FILE *f;
      38    pthread_t p;
      39    int err;
      40  
      41    f = popen ("echo something", "r");
      42    if (f == NULL)
      43      error (EXIT_FAILURE, errno, "popen failed");
      44    if (fgets (buf, sizeof (buf), f) == NULL)
      45      error (EXIT_FAILURE, 0, "fgets failed");
      46    if (strcmp (buf, "something\n"))
      47      error (EXIT_FAILURE, 0, "read wrong data");
      48    if (pclose (f))
      49      error (EXIT_FAILURE, errno, "pclose returned non-zero");
      50    if ((err = pthread_create (&p, NULL, dummy, NULL)))
      51      error (EXIT_FAILURE, err, "pthread_create failed");
      52    if ((err = pthread_join (p, NULL)))
      53      error (EXIT_FAILURE, err, "pthread_join failed");
      54    exit (0);
      55  }
      56  
      57  #define TEST_FUNCTION do_test ()
      58  #include "../test-skeleton.c"