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upnpevents.c: properly handle urls in the form http://ip:port 

Fix buffer over-read in upnpevents.c with urls in the form http://ip:port
(without path).
Assume / when the path is empty

fixes #361
This commit is contained in:
Thomas Bernard 2019-04-09 22:06:21 +02:00
parent 922372bff3
commit 1ef1deec01
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2 changed files with 9 additions and 5 deletions
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5
miniupnpd/Changelog.txt
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@ -1,4 +1,7 @@
$Id: Changelog.txt,v 1.444 2019/04/03 16:25:53 nanard Exp $
$Id: Changelog.txt,v 1.446 2019/04/09 20:04:32 nanard Exp $
2019/04/09:
Fix buffer over-read in upnpevents.c with urls in the form http://ip:port
2019/04/05:
Fix memory leak in upnpreplyparse.c with NewPortListing element

9
miniupnpd/upnpevents.c
View File

@ -1,8 +1,8 @@
/* $Id: upnpevents.c,v 1.39 2018/03/12 22:41:54 nanard Exp $ */
/* $Id: upnpevents.c,v 1.42 2019/04/09 20:04:34 nanard Exp $ */
/* vim: tabstop=4 shiftwidth=4 noexpandtab
* MiniUPnP project
* http://miniupnp.free.fr/ or http://miniupnp.tuxfamily.org/
* (c) 2008-2018 Thomas Bernard
* (c) 2008-2019 Thomas Bernard
* This software is subject to the conditions detailed
* in the LICENCE file provided within the distribution */
@ -341,7 +341,7 @@ upnp_event_notify_connect(struct upnp_event_notify * obj)
i = 1;
p++;
port = (unsigned short)atoi(p);
while(*p != '/') {
while(*p != '\0' && *p != '/') {
if(i<7) obj->portstr[i++] = *p;
p++;
}
@ -454,7 +454,8 @@ static void upnp_event_prepare(struct upnp_event_notify * obj)
return;
}
obj->tosend = snprintf(obj->buffer, obj->buffersize, notifymsg,
obj->path, obj->addrstr, obj->portstr, l+2,
(obj->path[0] != '\0') ? obj->path : "/",
obj->addrstr, obj->portstr, l+2,
obj->sub->uuid, obj->sub->seq,
l, xml);
if (obj->tosend < 0) {