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Re: [Qemu-devel] [PATCH] give some useful error messages when tap open f
From: |
Michael Tokarev |
Subject: |
Re: [Qemu-devel] [PATCH] give some useful error messages when tap open fails |
Date: |
Fri, 23 Apr 2010 16:52:38 +0400 |
User-agent: |
Mozilla-Thunderbird 2.0.0.22 (X11/20090706) |
Kevin Wolf wrote:
> Am 22.04.2010 11:52, schrieb Markus Armbruster:
>> Michael Tokarev <address@hidden> writes:
>>
>>> In net/tap-linux.c, when manipulation of /dev/net/tun fails, it prints
>>> (with fprintf) something like this:
>>>
[]
>>> TFR(fd = open("/dev/net/tun", O_RDWR));
>>> if (fd < 0) {
>>> - fprintf(stderr, "warning: could not open /dev/net/tun: no virtual
>>> network emulation\n");
>>> + qemu_error("could not open /dev/net/tun: %m\n");
>>> return -1;
>
> I'm not sure where this %m is defined exactly (Linux specific? Maybe
> BSDs, too?), but it doesn't seem to work with mingw.
The file being patched is tap-linux.c.
I noted this in my first email.
Thanks!
/mjt