MMDVMHost-Private/RemoteControl.cpp

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/*
* Copyright (C) 2019 by Jonathan Naylor G4KLX
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "RemoteControl.h"
#include "Log.h"
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#include <cstdio>
#include <cstdlib>
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#include <cassert>
#include <cstring>
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const unsigned int SET_MODE_ARGS = 2U;
const unsigned int ENABLE_ARGS = 2U;
const unsigned int DISABLE_ARGS = 2U;
const unsigned int PAGE_ARGS = 3U;
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const unsigned int CW_ARGS = 2U;
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const unsigned int BUFFER_LENGTH = 100U;
CRemoteControl::CRemoteControl(unsigned int port) :
m_socket(port),
m_command(RCD_NONE),
m_args()
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{
assert(port > 0U);
}
CRemoteControl::~CRemoteControl()
{
}
bool CRemoteControl::open()
{
return m_socket.open();
}
REMOTE_COMMAND CRemoteControl::getCommand()
{
m_command = RCD_NONE;
m_args.clear();
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char command[BUFFER_LENGTH];
char buffer[BUFFER_LENGTH];
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in_addr address;
unsigned int port;
int ret = m_socket.read((unsigned char*)buffer, BUFFER_LENGTH, address, port);
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if (ret > 0) {
buffer[ret] = '\0';
// Make a copy of the original command for logging.
::strcpy(command, buffer);
// Parse the original command into a vector of strings.
char* b = buffer;
char* p = NULL;
while ((p = ::strtok(b, " ")) != NULL) {
b = NULL;
m_args.push_back(std::string(p));
}
if (m_args.at(0U) == "mode" && m_args.size() >= SET_MODE_ARGS) {
// Mode command is in the form of "mode <mode> [<timeout>|fixed]"
if (m_args.at(1U) == "idle")
m_command = RCD_MODE_IDLE;
else if (m_args.at(1U) == "lockout")
m_command = RCD_MODE_LOCKOUT;
else if (m_args.at(1U) == "d-star")
m_command = RCD_MODE_DSTAR;
else if (m_args.at(1U) == "dmr")
m_command = RCD_MODE_DMR;
else if (m_args.at(1U) == "ysf")
m_command = RCD_MODE_YSF;
else if (m_args.at(1U) == "p25")
m_command = RCD_MODE_P25;
else if (m_args.at(1U) == "nxdn")
m_command = RCD_MODE_NXDN;
} else if (m_args.at(0U) == "enable" && m_args.size() >= ENABLE_ARGS) {
if (m_args.at(1U) == "dstar")
m_command = RCD_ENABLE_DSTAR;
else if (m_args.at(1U) == "dmr")
m_command = RCD_ENABLE_DMR;
else if (m_args.at(1U) == "ysf")
m_command = RCD_ENABLE_YSF;
else if (m_args.at(1U) == "p25")
m_command = RCD_ENABLE_P25;
else if (m_args.at(1U) == "nxdn")
m_command = RCD_ENABLE_NXDN;
else if (m_args.at(1U) == "fm")
m_command = RCD_ENABLE_FM;
} else if (m_args.at(0U) == "disable" && m_args.size() >= DISABLE_ARGS) {
if (m_args.at(1U) == "dstar")
m_command = RCD_DISABLE_DSTAR;
else if (m_args.at(1U) == "dmr")
m_command = RCD_DISABLE_DMR;
else if (m_args.at(1U) == "ysf")
m_command = RCD_DISABLE_YSF;
else if (m_args.at(1U) == "p25")
m_command = RCD_DISABLE_P25;
else if (m_args.at(1U) == "nxdn")
m_command = RCD_DISABLE_NXDN;
else if (m_args.at(1U) == "fm")
m_command = RCD_DISABLE_FM;
} else if (m_args.at(0U) == "page" && m_args.size() >= PAGE_ARGS) {
// Page command is in the form of "page <ric> <message>"
m_command = RCD_PAGE;
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} else if (m_args.at(0U) == "cw" && m_args.size() >= CW_ARGS) {
// CW command is in the form of "cw <message>"
m_command = RCD_CW;
}
if (m_command == RCD_NONE) {
m_args.clear();
LogWarning("Invalid remote command of \"%s\" received", command);
} else {
LogMessage("Valid remote command of \"%s\" received", command);
}
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}
return m_command;
}
unsigned int CRemoteControl::getArgCount() const
{
switch (m_command) {
case RCD_MODE_IDLE:
case RCD_MODE_LOCKOUT:
case RCD_MODE_DSTAR:
case RCD_MODE_DMR:
case RCD_MODE_YSF:
case RCD_MODE_P25:
case RCD_MODE_NXDN:
return m_args.size() - SET_MODE_ARGS;
case RCD_PAGE:
return m_args.size() - 1U;
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case RCD_CW:
return m_args.size() - 1U;
default:
return 0U;
}
}
std::string CRemoteControl::getArgString(unsigned int n) const
{
switch (m_command) {
case RCD_MODE_IDLE:
case RCD_MODE_LOCKOUT:
case RCD_MODE_DSTAR:
case RCD_MODE_DMR:
case RCD_MODE_YSF:
case RCD_MODE_P25:
case RCD_MODE_NXDN:
n += SET_MODE_ARGS;
break;
case RCD_PAGE:
n += 1U;
break;
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case RCD_CW:
n += 1U;
break;
default:
return "";
}
if (n >= m_args.size())
return "";
return m_args.at(n);
}
unsigned int CRemoteControl::getArgUInt(unsigned int n) const
{
return (unsigned int)::atoi(getArgString(n).c_str());
}
int CRemoteControl::getArgInt(unsigned int n) const
{
return ::atoi(getArgString(n).c_str());
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}
void CRemoteControl::close()
{
m_socket.close();
}