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//===-- StringExtractorGDBRemote.cpp ----------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// C Includes
#include <string.h>
// C++ Includes
// Other libraries and framework includes
// Project includes
#include "Utility/StringExtractorGDBRemote.h"
StringExtractorGDBRemote::ResponseType
StringExtractorGDBRemote::GetResponseType () const
{
if (m_packet.empty())
return eUnsupported;
switch (m_packet[0])
{
case 'E':
if (m_packet.size() == 3 &&
isxdigit(m_packet[1]) &&
isxdigit(m_packet[2]))
return eError;
break;
case 'O':
if (m_packet.size() == 2 && m_packet[1] == 'K')
return eOK;
break;
case '+':
if (m_packet.size() == 1)
return eAck;
break;
case '-':
if (m_packet.size() == 1)
return eNack;
break;
}
return eResponse;
}
StringExtractorGDBRemote::ServerPacketType
StringExtractorGDBRemote::GetServerPacketType () const
{
#define PACKET_MATCHES(s) ((packet_size == (sizeof(s)-1)) && (strcmp((packet_cstr),(s)) == 0))
#define PACKET_STARTS_WITH(s) ((packet_size >= (sizeof(s)-1)) && ::strncmp(packet_cstr, s, (sizeof(s)-1))==0)
// Empty is not a supported packet...
if (m_packet.empty())
return eServerPacketType_invalid;
const size_t packet_size = m_packet.size();
const char *packet_cstr = m_packet.c_str();
switch (m_packet[0])
{
case '\x03':
if (packet_size == 1) return eServerPacketType_interrupt;
break;
case '-':
if (packet_size == 1) return eServerPacketType_nack;
break;
case '+':
if (packet_size == 1) return eServerPacketType_ack;
break;
case 'A':
return eServerPacketType_A;
case 'Q':
switch (packet_cstr[1])
{
case 'E':
if (PACKET_STARTS_WITH ("QEnvironment:")) return eServerPacketType_QEnvironment;
break;
case 'S':
if (PACKET_MATCHES ("QStartNoAckMode")) return eServerPacketType_QStartNoAckMode;
else if (PACKET_STARTS_WITH ("QSetDisableASLR:")) return eServerPacketType_QSetDisableASLR;
else if (PACKET_STARTS_WITH ("QSetSTDIN:")) return eServerPacketType_QSetSTDIN;
else if (PACKET_STARTS_WITH ("QSetSTDOUT:")) return eServerPacketType_QSetSTDOUT;
else if (PACKET_STARTS_WITH ("QSetSTDERR:")) return eServerPacketType_QSetSTDERR;
else if (PACKET_STARTS_WITH ("QSetWorkingDir:")) return eServerPacketType_QSetWorkingDir;
break;
case 'L':
if (PACKET_STARTS_WITH ("QLaunchArch:")) return eServerPacketType_QLaunchArch;
break;
}
break;
case 'q':
switch (packet_cstr[1])
{
case 's':
if (PACKET_MATCHES ("qsProcessInfo")) return eServerPacketType_qsProcessInfo;
break;
case 'f':
if (PACKET_STARTS_WITH ("qfProcessInfo")) return eServerPacketType_qfProcessInfo;
break;
case 'C':
if (packet_size == 2) return eServerPacketType_qC;
break;
case 'G':
if (PACKET_STARTS_WITH ("qGroupName:")) return eServerPacketType_qGroupName;
break;
case 'H':
if (PACKET_MATCHES ("qHostInfo")) return eServerPacketType_qHostInfo;
break;
case 'K':
if (PACKET_STARTS_WITH ("qKillSpawnedProcess")) return eServerPacketType_qKillSpawnedProcess;
break;
case 'L':
if (PACKET_STARTS_WITH ("qLaunchGDBServer")) return eServerPacketType_qLaunchGDBServer;
if (PACKET_MATCHES ("qLaunchSuccess")) return eServerPacketType_qLaunchSuccess;
break;
case 'P':
if (PACKET_STARTS_WITH ("qProcessInfoPID:")) return eServerPacketType_qProcessInfoPID;
if (PACKET_STARTS_WITH ("qPlatform_RunCommand:")) return eServerPacketType_qPlatform_RunCommand;
if (PACKET_STARTS_WITH ("qPlatform_IO_MkDir:")) return eServerPacketType_qPlatform_IO_MkDir;
break;
case 'S':
if (PACKET_STARTS_WITH ("qSpeedTest:")) return eServerPacketType_qSpeedTest;
break;
case 'U':
if (PACKET_STARTS_WITH ("qUserName:")) return eServerPacketType_qUserName;
break;
}
break;
case 'v':
if (PACKET_STARTS_WITH("vFile:"))
{
if (PACKET_STARTS_WITH("vFile:open:")) return eServerPacketType_vFile_Open;
else if (PACKET_STARTS_WITH("vFile:close:")) return eServerPacketType_vFile_Close;
else if (PACKET_STARTS_WITH("vFile:pread")) return eServerPacketType_vFile_pRead;
else if (PACKET_STARTS_WITH("vFile:pwrite")) return eServerPacketType_vFile_pWrite;
else if (PACKET_STARTS_WITH("vFile:size")) return eServerPacketType_vFile_Size;
else if (PACKET_STARTS_WITH("vFile:exists")) return eServerPacketType_vFile_Exists;
else if (PACKET_STARTS_WITH("vFile:stat")) return eServerPacketType_vFile_Stat;
else if (PACKET_STARTS_WITH("vFile:mode")) return eServerPacketType_vFile_Mode;
else if (PACKET_STARTS_WITH("vFile:MD5")) return eServerPacketType_vFile_MD5;
}
break;
}
return eServerPacketType_unimplemented;
}
bool
StringExtractorGDBRemote::IsOKResponse() const
{
return GetResponseType () == eOK;
}
bool
StringExtractorGDBRemote::IsUnsupportedResponse() const
{
return GetResponseType () == eUnsupported;
}
bool
StringExtractorGDBRemote::IsNormalResponse() const
{
return GetResponseType () == eResponse;
}
bool
StringExtractorGDBRemote::IsErrorResponse() const
{
return GetResponseType () == eError &&
m_packet.size() == 3 &&
isxdigit(m_packet[1]) &&
isxdigit(m_packet[2]);
}
uint8_t
StringExtractorGDBRemote::GetError ()
{
if (GetResponseType() == eError)
{
SetFilePos(1);
return GetHexU8(255);
}
return 0;
}
size_t
StringExtractorGDBRemote::GetEscapedBinaryData (std::string &str)
{
str.clear();
char ch;
while (GetBytesLeft())
{
ch = GetChar();
if (ch == 0x7d)
ch = (GetChar() ^ 0x20);
str.append(1,ch);
}
return str.size();
}
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