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#ifdef _LIBC
#include <ansidecl.h>
#endif
#include <stdio.h>
#include <unistd.h>
#include <string.h>

int stdio_block_read = 1, stdio_block_write = 1;

int
DEFUN(main, (argc, argv),
      int argc AND char **argv)
{
  FILE *f;
  int i;
  char buffer[31];

  while ((i = getopt (argc, argv, "rw")) != EOF)
    switch (i)
      {
      case 'r':
	stdio_block_read = 0;
	break;
      case 'w':
	stdio_block_write = 0;
	break;
      }

  f = fopen("/tmp/bugtest", "w+");
  for (i=0; i<9000; i++) {
    putc('x', f);
  }
  fseek(f, 8180L, 0);
  fwrite("Where does this text come from?", 1, 31, f);
  fseek(f, 8180L, 0);
  fread(buffer, 1, 31, f);
  fwrite(buffer, 1, 31, stdout);
  fclose(f);

  if (!memcmp (buffer, "Where does this text come from?", 31))
    {
      puts ("\nTest succeeded.");
      return 0;
    }
  else
    {
      puts ("\nTest FAILED!");
      return 1;
    }
}