[uCsimm] apparent memory leak in stdio

From: David Beckemeyer (david@corp.earthlink.net)
Date: Mon Jul 17 2000 - 02:41:06 EDT

It appears that there is some kind of memory leak in the standard
I/O libc.

Compile and run the following simple program and you will see
that it grows indefinately until it consumes all uClinux memory
(takes many hours/days to finally crash the uCsimm). Can you
see anything wrong with this program? Has anyone else seen
this behavior? Is there a work-around/fix?

This is with 2.0.381pre5 (from Rt-Control CD).

#include <stdio.h>

main ()
  FILE *fp;
  int i;

  i = 0;
  for (;;)
      fp = fopen ("/var/memtst", "w");
      if (fp)
          fprintf (fp, "%d\n", i);
          fclose (fp);
      sleep (5);
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