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tv_ctrlpt crashes after detecting a later version of tvcontrol service

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SF Bug Tracker #118, Creator: T.Iwamoto

	From:  gon3456@users.sf.net
	Steps to reproduce:
	1. Extracts and build libupnp-1.6.18
	$ tar -xjf /path/to/archive/libupnp-1.6.18.tar.bz2
	$ cd libupnp-1.6.18
	$ ./configure
	$ make
	2. Applies the attached patch and remake.
	$ patch -p1 < /path/to/patch/libupnp-1.6.18.patch
	$ make
	3. Run tv_device.
	$ cd upnp/sample
	$ ./tv_device
	4. Run tv_ctrlpt; the tv_ctrlpt crashes soon.
	$ ./tv_ctrlpt
	Segmentation fault (core dumped)
	This is an issue report about the sample program of control point.
	The tv_ctrlpt crashes after detecting a tvdevice that contains tvcontrol:2 or higher version of tvcontrol service.
	tv_ctrlpt should detect correctly such devices due to forward compatibility of control points with device.
	For more information about the compatibility, please refer the following document:
	DLNA Architectures and Protocols Part 1 2011 December - 7.3.2.1.3 (GUN:GZJXU)
	The attached patch changes the sample programs as below:
	- device: changes version of tvcontrol service from 1 to 2. This change may occur in the future.
	- cp: nothing changed: cp knows version 1 of tvcontrol service only.
	I know many vendors implements their control points based on the tv_ctrlpt, so I hope to fix this issue ASAP.

	==

	From: Yoichi NAKAYAMA
	SEGV is caused by strcpy with NULL argument.
	Attached patch will avoid SEGV in strcpy, but there may be other inconsistencies.

	> I know many vendors implements their control points based on the tv_ctrlpt,

	I don't think so. I think tv_ctrlpt is just a sample to be used with tv_device.

Signed-off-by: Marcelo Roberto Jimenez <mroberto@users.sourceforge.net>
(cherry picked from commit 1a28e8ff51)
This commit is contained in:
Yoichi Nakayama 2013-10-29 17:55:23 -02:00 committed by Marcelo Roberto Jimenez
parent 89d34af3bd
commit 9a8758399c
2 changed files with 45 additions and 0 deletions
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41
ChangeLog
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@ -357,6 +357,47 @@ Version 1.8.0
Version 1.6.19
*******************************************************************************
2012-06-19 Yoichi NAKAYAMA <yoichi.nakayama(at)gmail.com>
SF Bug Tracker #118, Creator: T.Iwamoto
tv_ctrlpt crashes after detecting a later version of tvcontrol service
From: gon3456@users.sf.net
Steps to reproduce:
1. Extracts and build libupnp-1.6.18
$ tar -xjf /path/to/archive/libupnp-1.6.18.tar.bz2
$ cd libupnp-1.6.18
$ ./configure
$ make
2. Applies the attached patch and remake.
$ patch -p1 < /path/to/patch/libupnp-1.6.18.patch
$ make
3. Run tv_device.
$ cd upnp/sample
$ ./tv_device
4. Run tv_ctrlpt; the tv_ctrlpt crashes soon.
$ ./tv_ctrlpt
Segmentation fault (core dumped)
This is an issue report about the sample program of control point.
The tv_ctrlpt crashes after detecting a tvdevice that contains tvcontrol:2 or higher version of tvcontrol service.
tv_ctrlpt should detect correctly such devices due to forward compatibility of control points with device.
For more information about the compatibility, please refer the following document:
DLNA Architectures and Protocols Part 1 2011 December - 7.3.2.1.3 (GUN:GZJXU)
The attached patch changes the sample programs as below:
- device: changes version of tvcontrol service from 1 to 2. This change may occur in the future.
- cp: nothing changed: cp knows version 1 of tvcontrol service only.
I know many vendors implements their control points based on the tv_ctrlpt, so I hope to fix this issue ASAP.
==
From: Yoichi NAKAYAMA
SEGV is caused by strcpy with NULL argument.
Attached patch will avoid SEGV in strcpy, but there may be other inconsistencies.
> I know many vendors implements their control points based on the tv_ctrlpt,
I don't think so. I think tv_ctrlpt is just a sample to be used with tv_device.
2013-10-28 Pino Toscano <pinotree(at)users.sourceforge.net>
Fix compilation on GNU/Hurd

4
upnp/sample/common/tv_ctrlpt.c
View File

@ -741,6 +741,10 @@ void TvCtrlPointAddDevice(
deviceNode->device.AdvrTimeOut = expires;
for (service = 0; service < TV_SERVICE_SERVCOUNT;
service++) {
if (serviceId[service] == NULL) {
/* not found */
continue;
}
strcpy(deviceNode->device.TvService[service].
ServiceId, serviceId[service]);
strcpy(deviceNode->device.TvService[service].