#include <stdio.h>
#include <stdlib.h>

void run_cgi_child()
{
#ifdef DEBUG_CGI
#ifdef OS2
  FILE *dbg = fopen("con", "w");
#else
  FILE *dbg = fopen("/dev/tty", "w");
#endif
#endif

#ifdef DEBUG_CGI
  fprintf(dbg, "Environment\n");
#endif

  if(rand() % 2)
    return; // ERROR: dbg is leaked

#ifdef DEBUG_CGI
  fclose(dbg);
#endif
  return;
}

void cgi_handler()
{
  run_cgi_child();
}

int main(void)
{
  cgi_handler();
  return 0;
}

. call modules/generators/mod_cgi.c:743:cgi_handler()
. 826: run_cgi_child()
.. call modules/generators/mod_cgi.c:371:run_cgi_child()
.. // if DEBUG_CGI and OS2 are enabled
.. 395: FILE *dbg = fopen("con", "w");
.. ERROR 467: return APR_EBADF;