RE: ELDK glibc fcntl(socketFd, F_SETFL, flags) causes Seg Fault

["Christopher Dumoulin" <cdumoulin@ics-ltd.com>]

If that's your exact code, I notice you're not checking if the socket()
call succeeded. You may be calling fcntl with an invalid socket handle.

The first place I'd look is to make sure you've included 'Networking
Support', 'Unix domain sockets', maybe 'TCP/IP networking', and whatever
else you might need, when you configure your kernel.

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Message: 6
Date: Fri, 02 Feb 2007 08:30:18 +0100
From: Wolfgang Denk <wd@denx.de>
Subject: Re: ELDK glibc fcntl(socketFd, F_SETFL, flags) causes Seg
	Fault
To: Daniel Ng <daniel_ng11@lycos.com>
Cc: linuxppc-embedded@ozlabs.org
Message-ID: <20070202073018.C8710352B86@atlas.denx.de>
Content-Type: text/plain; charset=ISO-8859-1

In message <loom.20070201T073939-302@post.gmane.org> you wrote:
> 
> My application Seg Faults when I try to set flags for my socket fd.
> 
> First, I get the fd by calling socket():
> fd = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);
> 
> Then I try getting the fd flags:
> fcntl(fd, F_GETFL, flags)

Provide some working / crashing test code, i. e. a complete C program
with declarations etc.

Best regards,

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de
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