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libfreerdp-core: improve encoding and decoding of GCC core data block

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This commit is contained in:
Marc-André Moreau 2014-01-24 13:03:37 -05:00
parent 21a259927a
commit 95634f3e4c
1 changed files with 15 additions and 3 deletions
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18
libfreerdp/core/gcc.c
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@ -834,26 +834,38 @@ BOOL gcc_read_server_core_data(wStream* s, rdpSettings* settings)
{
UINT32 version;
UINT32 clientRequestedProtocols;
UINT32 earlyCapabilityFlags;
if (Stream_GetRemainingLength(s) < 8)
if (Stream_GetRemainingLength(s) < 4)
return FALSE;
Stream_Read_UINT32(s, version); /* version */
Stream_Read_UINT32(s, clientRequestedProtocols); /* clientRequestedProtocols */
if (version == RDP_VERSION_4 && settings->RdpVersion > 4)
settings->RdpVersion = 4;
else if (version == RDP_VERSION_5_PLUS && settings->RdpVersion < 5)
settings->RdpVersion = 7;
if (Stream_GetRemainingLength(s) >= 4)
{
Stream_Read_UINT32(s, clientRequestedProtocols); /* clientRequestedProtocols */
}
if (Stream_GetRemainingLength(s) >= 4)
{
Stream_Read_UINT32(s, earlyCapabilityFlags); /* earlyCapabilityFlags */
}
return TRUE;
}
void gcc_write_server_core_data(wStream* s, rdpSettings* settings)
{
gcc_write_user_data_header(s, SC_CORE, 12);
gcc_write_user_data_header(s, SC_CORE, 16);
Stream_Write_UINT32(s, settings->RdpVersion == 4 ? RDP_VERSION_4 : RDP_VERSION_5_PLUS);
Stream_Write_UINT32(s, settings->RequestedProtocols); /* clientRequestedProtocols */
Stream_Write_UINT32(s, settings->EarlyCapabilityFlags); /* earlyCapabilityFlags */
}
/**