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Merge pull request #13995 from Cthulhu-throwaway/natt-fix

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(UPnP) Fix for zero-length datagrams
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LibretroAdmin 2022-06-01 07:37:28 +01:00 committed by GitHub
commit 6755eac963
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1 changed files with 5 additions and 1 deletions
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network/natt.c
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@ -194,8 +194,12 @@ bool natt_device_next(struct natt_discovery *discovery,
recvd = recvfrom(discovery->fd, buf, sizeof(buf), 0, recvd = recvfrom(discovery->fd, buf, sizeof(buf), 0,
(struct sockaddr *) &device->addr, &addr_size); (struct sockaddr *) &device->addr, &addr_size);
if (recvd <= 0) if (recvd < 0)
return false; return false;
/* Zero-length datagrams are valid, but we can't do anything with them.
Don't treat them as an error. */
if (!recvd)
return true;
/* Parse the data we received. /* Parse the data we received.
We are only looking for the 'Location' HTTP header. */ We are only looking for the 'Location' HTTP header. */