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correct implementation of GetMTUWindows for WindowsXP

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orignal 2019-11-12 11:35:59 -05:00
parent 651240113c
commit c3e3c091cc
1 changed files with 24 additions and 13 deletions
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37
libi2pd/util.cpp
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@ -61,17 +61,22 @@ namespace net
{
#ifdef WIN32
bool IsWindowsXPorLater()
{
OSVERSIONINFO osvi;
{
static bool isRequested = false;
static bool isXP = false;
if (!isRequested)
{
// request
OSVERSIONINFO osvi;
ZeroMemory(&osvi, sizeof(OSVERSIONINFO));
osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
GetVersionEx(&osvi);
ZeroMemory(&osvi, sizeof(OSVERSIONINFO));
osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
GetVersionEx(&osvi);
if (osvi.dwMajorVersion <= 5)
return true;
else
return false;
isXP = osvi.dwMajorVersion <= 5;
isRequested = true;
}
return isXP;
}
int GetMTUWindowsIpv4(sockaddr_in inputAddress, int fallback)
@ -202,7 +207,7 @@ namespace net
std::string localAddressUniversal = localAddress.to_string();
#endif
if (IsWindowsXPorLater())
bool isXP = IsWindowsXPorLater();
{
#define inet_pton inet_pton_xp
}
@ -210,13 +215,19 @@ namespace net
if(localAddress.is_v4())
{
sockaddr_in inputAddress;
inet_pton(AF_INET, localAddressUniversal.c_str(), &(inputAddress.sin_addr));
if (isXP)
inet_pton_xp(AF_INET, localAddressUniversal.c_str(), &(inputAddress.sin_addr));
else
inet_pton(AF_INET, localAddressUniversal.c_str(), &(inputAddress.sin_addr));
return GetMTUWindowsIpv4(inputAddress, fallback);
}
else if(localAddress.is_v6())
{
sockaddr_in6 inputAddress;
inet_pton(AF_INET6, localAddressUniversal.c_str(), &(inputAddress.sin6_addr));
sockaddr_in6 inputAddress;
if (isXP)
inet_pton_xp(AF_INET6, localAddressUniversal.c_str(), &(inputAddress.sin6_addr));
else
inet_pton(AF_INET6, localAddressUniversal.c_str(), &(inputAddress.sin6_addr));
return GetMTUWindowsIpv6(inputAddress, fallback);
} else {
LogPrint(eLogError, "NetIface: GetMTU(): address family is not supported");