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Don't allow ws2_32 access to apps with bad setup data

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svn path=/trunk/; revision=23595
This commit is contained in:
Ged Murphy
2006-08-17 16:44:54 +00:00
parent 22917c0ebe
commit 885da5be07
1 changed files with 48 additions and 2 deletions
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reactos/dll/win32/ws2_32/misc/dllmain.c
+48 -2
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@@ -76,16 +76,62 @@ EXPORT
WSAStartup(IN WORD wVersionRequested,
OUT LPWSADATA lpWSAData)
{
BYTE Low, High;
WS_DbgPrint(MAX_TRACE, ("WSAStartup of ws2_32.dll\n"));
if (!g_hInstDll)
return WSASYSNOTREADY;
if (lpWSAData == NULL)
return WSAEFAULT;
Low = LOWBYTE(wVersionRequested);
High = HIGHBYTE(wVersionRequested);
if (Low < 1)
{
WS_DbgPrint(MAX_TRACE, ("Bad winsock version requested, %d,%d", Low, High));
return WSAVERNOTSUPPORTED;
}
if (Low == 1)
{
if (High == 0)
{
lpWSAData->wVersion = wVersionRequested;
}
else
{
lpWSAData->wVersion = MAKEWORD(1, 1);
}
}
else if (Low == 2)
{
if (High <= 2)
{
lpWSAData->wVersion = MAKEWORD(2, High);
}
else
{
lpWSAData->wVersion = MAKEWORD(2, 2);
}
}
else
{
lpWSAData->wVersion = MAKEWORD(2, 2);
}
lpWSAData->wVersion = wVersionRequested;
lpWSAData->wHighVersion = 2;
lstrcpyA(lpWSAData->szDescription, "WinSock 2.0");
lpWSAData->wHighVersion = MAKEWORD(2,2);
lstrcpyA(lpWSAData->szDescription, "WinSock 2.2");
lstrcpyA(lpWSAData->szSystemStatus, "Running");
lpWSAData->iMaxSockets = 0;
lpWSAData->iMaxUdpDg = 0;
lpWSAData->lpVendorInfo = NULL;
/*FIXME: increment internal counter */
WSASETINITIALIZED;
return NO_ERROR;