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Wifi: fix potential endian issues on bigendian in the DNS parsing code.

This commit is contained in:
luigi__ 2010-04-20 17:21:31 +00:00
parent 294e3e959c
commit 5a4f5f9614
1 changed files with 3 additions and 3 deletions
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6
desmume/src/wifi.cpp
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@ -2005,11 +2005,11 @@ void SoftAP_Reset()
static bool SoftAP_IsDNSRequestToWFC(u16 ethertype, u8* body) static bool SoftAP_IsDNSRequestToWFC(u16 ethertype, u8* body)
{ {
// Check the various headers... // Check the various headers...
if (htons(ethertype) != 0x0800) return false; // EtherType: IP if (ntohs(ethertype) != 0x0800) return false; // EtherType: IP
if (body[0] != 0x45) return false; // Version: 4, header len: 5 if (body[0] != 0x45) return false; // Version: 4, header len: 5
if (body[9] != 0x11) return false; // Protocol: UDP if (body[9] != 0x11) return false; // Protocol: UDP
if (htons(*(u16*)&body[22]) != 53) return false; // Dest. port: 53 (DNS) if (ntohs(*(u16*)&body[22]) != 53) return false; // Dest. port: 53 (DNS)
if ((*(u16*)&body[28+2]) & 0x8000) return false; // must be a query if (htons(ntohs(*(u16*)&body[28+2])) & 0x8000) return false; // must be a query
// Analyze each question // Analyze each question
u16 numquestions = htons(*(u16*)&body[28+4]); u16 numquestions = htons(*(u16*)&body[28+4]);