On Thu, 15 May 2008 14:49:26 -0400
"Bob McConnell" <[EMAIL PROTECTED]> wrote:
> >>> My code so far:
> >>>
> >>> ----------------- tear along dotted line -----------------
> >>> tapFD = open ("/dev/tap0", O_RDWR);
> >>> if (tapFD < 0) {
> >>> fprintf (stderr, "Failed to open /dev/tap0: %d.\n", tapFD);
> >>> exit (2);
> >>> }
> >>>
> >>> fprintf (stderr, "Successfully opened /dev/tap0.\n");
> >>>
> >>> unsigned char * buffer = (unsigned char*)malloc(1514);
> >>> if (buffer = NULL) {
if (buffer == NULL) {
> >>> fprintf (stderr, "No memory available.\n");
> >>> close (tapFD);
> >>> exit(3);
> >>> }
>
> When I replace the malloc with an automatic array, the
> error goes away and I get the data I am looking for. i.e.:
>
> unsigned char buffer[1514];
>
> So why can't I use malloc to create that buffer?
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