Date: Fri, 16 May 2008 16:19:38 +0200 (CEST) From: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl> To: Steve Randall <srandall52@sbcglobal.net> Cc: freebsd-questions@freebsd.org Subject: Re: Unable to talk to tap(4) Message-ID: <20080516161816.M20005@wojtek.tensor.gdynia.pl> In-Reply-To: <20080516081903.333b342d@locust> References: <FF8482A96323694490C194BABEAC24A002B83B78@Email.cbord.com> <20080514234101.P2316@wojtek.tensor.gdynia.pl> <FF8482A96323694490C194BABEAC24A002B841D1@Email.cbord.com> <20080516081903.333b342d@locust>
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>>>>> unsigned char * buffer = (unsigned char*)malloc(1514);
is stdlib.h included (i'm asking for sure)?
>>>>> 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?
anyway not using malloc is good habit :) but it should work anyway.
try
buffer[0]=buffer[1513]=0;
to make sure page is actually allocated.
if this help - maybe tap driver is buggy.
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