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Re: Administrivia: List Announcement

From: Wynn Fenwick <wynn.fenwick(at)cgi.com>
Date: Tue May 13 2003 - 16:43:56 EDT


Xeno nailed that one but here's something I wondered...

The program uses malloc() then iterates through each memory location, assuming that malloc() would give them a contiguous block of memory.

> for (i = 0; i <= SIZE && p1[i] != '\0'; i++)

I believe there is an (incorrect) assumption that the memory returned by malloc() on Win32 is contiguous, unlike some UNIX boxen? Is there a neato non-portability vulnerability created by iterating through the string elements this way? or is it only vulnerable if you do something like this:

  char* p;
  p = &buf1;
  while (*p != '\0') buf1[i++] = *p++;

Wow... I haven't written C in a long time... I hope I don't embarrass myself...

W Received on Tue May 13 18:32:28 2003

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