[mythtv] lirc_client.c sending empty CODE cmd to LIRC -> segfault
Michael T. Dean
mtdean at thirdcontact.com
Tue Feb 9 21:09:45 UTC 2010
On 02/09/2010 03:42 PM, David Kubicek wrote:
> I was just playing with the optional lircrcd LIRC daemon and it kept
> segfaulting on me. I found the bug in the daemon (latest CVS version),
> but the reason for this is MythTV sending an empty CODE command. Until
> the bug is fixed in either of these two applications, it'll break
> advanced LIRC configurations...
> I haven't looked into MythTV, so I have no patch for you, but I'll be
> sending a patch to LIRC people. If you actually want the patch and it
> would be integrated soon (e.i. not in 6 months:)) Well, the command
> packet is actually from lircd, but it really originates in MythTV.
> lircrcd: received command: "CODE 01007f0000000000 1e Down
> lircrcd: received command: "CODE 01007f0000000000 22 Down
> lircrcd: received command: "CODE "
> Segfault in lircrcd (not relevant for you):
> #0 0xb764af93 in strlen () from /lib/tls/i686/cmov/libc.so.6
> #1 0xb764acd5 in strdup () from /lib/tls/i686/cmov/libc.so.6
> #2 0x0804a121 in code_func (fd=-1217294348, message=0x0,
> arguments=0x0) at lircrcd.c:489
> #3 0x0804adbd in get_command (argc=2, argv=0xbfe70a04) at lircrcd.c:646
> #4 loop (argc=2, argv=0xbfe70a04) at lircrcd.c:737
> #5 main (argc=2, argv=0xbfe70a04) at lircrcd.c:1010
Are you sure it's not: http://svn.mythtv.org/trac/ticket/7653 ? Can you
test that patch and provide feedback on it?
Also, can you get a fix into lircrcd to accept line feeds properly (you
mentioned you're already planning to send a patch to the LIRC devs for
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