Blame libio/tst-popen1.c

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#include <fcntl.h>
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#include <stdio.h>
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static int
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do_test (void)
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{
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  int res = 0;
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  FILE *fp = popen ("echo hello", "r");
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  if (fp == NULL)
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    {
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      puts ("first popen failed");
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      res = 1;
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    }
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  else
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    {
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      int fd = fileno (fp);
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      if (fcntl (fd, F_GETFD) == FD_CLOEXEC)
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	{
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	  puts ("first popen(\"r\") set FD_CLOEXEC");
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	  res = 1;
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	}
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      fclose (fp);
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    }
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  fp = popen ("echo hello", "re");
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  if (fp == NULL)
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    {
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      puts ("second popen failed");
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      res = 1;
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    }
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  else
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    {
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      int fd = fileno (fp);
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      if (fcntl (fd, F_GETFD) != FD_CLOEXEC)
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	{
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	  puts ("second popen(\"r\") did not set FD_CLOEXEC");
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	  res = 1;
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	}
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      fclose (fp);
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    }
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  return res;
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}
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#define TEST_FUNCTION do_test ()
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#include "../test-skeleton.c"