libio/tst-popen1.c

   1 #include <fcntl.h>
   2 #include <stdio.h>
   3
   4 static int
   5 do_test (void)
   6 {
   7   int res = 0;
   8
   9   FILE *fp = popen ("echo hello", "r");
  10   if (fp == NULL)
  11     {
  12       puts ("first popen failed");
  13       res = 1;
  14     }
  15   else
  16     {
  17       int fd = fileno (fp);
  18       if (fcntl (fd, F_GETFD) == FD_CLOEXEC)
  19         {
  20           puts ("first popen(\"r\") set FD_CLOEXEC");
  21           res = 1;
  22         }
  23
  24       fclose (fp);
  25     }
  26
  27   fp = popen ("echo hello", "re");
  28   if (fp == NULL)
  29     {
  30       puts ("second popen failed");
  31       res = 1;
  32     }
  33   else
  34     {
  35       int fd = fileno (fp);
  36       if (fcntl (fd, F_GETFD) != FD_CLOEXEC)
  37         {
  38           puts ("second popen(\"r\") did not set FD_CLOEXEC");
  39           res = 1;
  40         }
  41
  42       fclose (fp);
  43     }
  44
  45   return res;
  46 }
  47
  48 #define TEST_FUNCTION do_test ()
  49 #include "../test-skeleton.c"