atexit.c

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/* taken from wine exit.c */
#include <precomp.h>
 
/*********************************************************************
 *      __dllonexit (MSVCRT.@)
 */
_onexit_t CDECL __dllonexit(_onexit_t func, _onexit_t **start, _onexit_t **end)
{
   _onexit_t *tmp;
   size_t len;
 
  TRACE("(%p,%p,%p)\n", func, start, end);
 
  if (!start || !*start || !end || !*end)
  {
   FIXME("bad table\n");
   return NULL;
  }
 
  len = (*end - *start);
 
  TRACE("table start %p-%p, %d entries\n", *start, *end, len);
 
  if (++len <= 0)
    return NULL;
 
  tmp = realloc(*start, len * sizeof(_onexit_t));
  if (!tmp)
    return NULL;
  *start = tmp;
  *end = tmp + len;
  tmp[len - 1] = func;
  TRACE("new table start %p-%p, %d entries\n", *start, *end, len);
  return func;
}