fsanitize: member access within null pointer

[Kornel Benko]

Am Thu, 16 Dec 2021 13:38:43 +0100
schrieb Pavel Sanda <sanda at lyx.org>:

> On Tue, Dec 07, 2021 at 10:20:02PM -0500, Scott Kostyshak wrote:
> > Compiling master with Clang and fsanitize, I get the following when
> > LyX starts up (without doing anything else):
> > 
> >   /home/scott/lyxbuilds/master/repo/src/support/socktools.cpp:114:56: runtime error:
> > member access within null pointer of type 'struct sockaddr_un'
> > 
> > Can anyone take a look?  
> 
> Does changing sockaddr -> sockaddr_un in the critical line changes anything? P

/usr2/src/lyx/lyx-git/src/support/socktools.cpp:114:19: error: cannot initialize a
parameter of type 'const struct sockaddr *' with an rvalue of type 'sockaddr_un *'
        if ((::bind (fd, reinterpret_cast<sockaddr_un *>(&addr), SUN_LEN(&addr))) == -1) {
                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/x86_64-linux-gnu/sys/socket.h:112:49: note: passing argument to parameter
'__addr' here extern int bind (int __fd, __CONST_SOCKADDR_ARG __addr, socklen_t __len)

	Kornel
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