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Date: Wed, 7 Sep 2005 20:18:36 +0200
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: "[ML] CygWin " <cygwin AT cygwin DOT com>
Subject: Re: happily messing up with raw devices (aka: lseek problems)
Message-ID: <20050907181836.GT5555@calimero.vinschen.de>
Reply-To: cygwin AT cygwin DOT com
Mail-Followup-To: "[ML] CygWin " <cygwin AT cygwin DOT com>
References: <431F266D DOT 3050604 AT lapo DOT it> <20050907174848 DOT GR5555 AT calimero DOT vinschen DOT de> <431F2D6D DOT 8000200 AT lapo DOT it>
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Try this:

On Sep  7 20:11, Lapo Luchini wrote:
> At the bare minumum it all boils down to:
> 
> % cat short.c
> #include <sys/stat.h>
> #include <errno.h>
> #include <fcntl.h>
> #include <stdio.h>

  #include <unistd.h>

> #define GAG_OFFSET 0x59BD
> main() {
>   char sect[512];
>   int dev, i;
>   dev = open("/dev/sdb", O_RDONLY | O_BINARY, 0);
>   if (dev < 0) perror("open");
>   i = lseek(dev, GAG_OFFSET & (~0x1FF), SEEK_SET);
>   if (i < 0) perror("seek");
> }
> % gcc -O -ggdb -o short short.c
> % ./short
> seek: Invalid argument

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Project Co-Leader          mailto:cygwin AT cygwin DOT com
Red Hat, Inc.

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