From: Julien Laganier <Julien.Laganier@Sun.COM>
To: Linux Mailing List <linux-kernel@vger.kernel.org>
Subject: Shared library interceptor/SIGSEGV
Date: Mon, 09 Jul 2001 16:11:45 +0200 [thread overview]
Message-ID: <3B49BBA1.4CAD3187@Sun.COM> (raw)
Hi folks,
I have written a library for intercepting outgoing network connections,
and redirecting them through a proxy server.
The user had to set LD_PRELOAD to load my library, and my library
redefine the connect() function for INET sockets. It also uses
dlsym(RTLD_NEXT, "connect") to get the location of the 'real' libc
connect.
The problem is : when I run some programs (like cat, which doesn't use
connect), it causes a SIGSEGV, and strace doesn't help me more! It seems
that the segmentation fault occurs after a 'certain' number of syscalls,
but I can't figure why.
Does anybody know where could be the bug ?
Tnx.
--
Julien Laganier
Student Intern
Sun Microsystem Laboratories
reply other threads:[~2001-07-09 14:12 UTC|newest]
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