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anders_aj
Joined: 15 Feb 2013
Posts: 2
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 Posted: Fri Feb 15, 2013 11:51 am Post subject: upnpDiscover returns only one device, pNext is always null |
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Hi all
I am trying to use miniupnp to find my network cameras. I followed the guide from a post by Maya Posch. Can't link as this is my first post.
I got it working, except that the upnpDiscover function returns a device list where the pNext pointer is always null. I have 3 cameras connected, and it also differs which one is found. But always only 1 is found.
Here is my code:
| Code: | WSADATA wsaData;
int nResult = WSAStartup(MAKEWORD(2,2), &wsaData);
if(nResult != NO_ERROR) {
cout << "Winsock Error: " << nResult << endl;
}
UPNPDev * devlist = 0;
const char* multicastif = 0;
const char* minissdpdpath = 0;
int error;
devlist = upnpDiscover(3000, multicastif, minissdpdpath, 0, 0, &error);
cout << "error: " << error << endl;
for (; devlist != NULL; devlist = devlist->pNext)
{
cout << "device url: " << devlist->descURL << endl;
cout << "Next device: " << devlist->pNext << endl;
} |
Have any of you encountered this or what am I doing wrong?
Kind regards, Anders |
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miniupnp
Site Admin
Joined: 14 Apr 2007
Posts: 1587
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| Posted: Sat Feb 16, 2013 9:03 am Post subject: |
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upnpDiscover() is not designed to find all UPNP devices on the network.
You should modify the function in order to send the right M-SEARCH request for your devices, and wait sufficient time to get response for all.
_________________
Main miniUPnP author.
https://miniupnp.tuxfamily.org/ |
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miniupnp
Site Admin
Joined: 14 Apr 2007
Posts: 1587
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anders_aj
Joined: 15 Feb 2013
Posts: 2
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| Posted: Tue Feb 19, 2013 9:43 am Post subject: |
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| Cool thanks, I'll look into that. |
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