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[host] added option parsing to application

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This commit is contained in:
Geoffrey McRae
2017-11-16 20:53:22 +11:00
parent 71c6e5d317
commit 6eb40a1897
15 changed files with 462 additions and 94 deletions
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262
host/main.cpp
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@@ -17,70 +17,244 @@ Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <Windows.h>
#include "common\debug.h"
#include <Shlwapi.h>
#include "common\debug.h"
#include "vendor\getopt\getopt.h"
#include "CaptureFactory.h"
#include "Service.h"
#ifdef DEBUG
#include <io.h>
#include <fcntl.h>
#include <iostream>
#endif
int parseArgs(struct StartupArgs & args);
int run(struct StartupArgs & args);
void doHelp();
void doLicense();
bool consoleActive = false;
void setupConsole();
struct StartupArgs
{
bool foreground;
const char * captureDevice;
CaptureOptions captureOptions;
};
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, PSTR szCmdParam, int iCmdShow)
{
#ifdef DEBUG
struct StartupArgs args;
ZeroMemory(&args, sizeof(struct StartupArgs));
int ret = parseArgs(args);
if (ret == 0)
{
HANDLE _handle;
int _conout;
FILE * fp;
AllocConsole();
CONSOLE_SCREEN_BUFFER_INFO conInfo;
GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE), &conInfo);
conInfo.dwSize.Y = 500;
SetConsoleScreenBufferSize(GetStdHandle(STD_OUTPUT_HANDLE), conInfo.dwSize);
_handle = GetStdHandle(STD_INPUT_HANDLE);
_conout = _open_osfhandle((intptr_t)_handle, _O_TEXT);
fp = _fdopen(_conout, "r");
freopen_s(&fp, "CONIN$", "r", stdin);
_handle = GetStdHandle(STD_OUTPUT_HANDLE);
_conout = _open_osfhandle((intptr_t)_handle, _O_TEXT);
fp = _fdopen(_conout, "w");
freopen_s(&fp, "CONOUT$", "w", stdout);
_handle = GetStdHandle(STD_ERROR_HANDLE);
_conout = _open_osfhandle((intptr_t)_handle, _O_TEXT);
fp = _fdopen(_conout, "w");
freopen_s(&fp, "CONOUT$", "w", stderr);
std::ios::sync_with_stdio();
std::wcout.clear();
std::cout.clear();
std::wcerr.clear();
std::cerr.clear();
std::wcin.clear();
std::cin.clear();
ret = run(args);
if (ret != 0)
{
if (!args.foreground)
{
setupConsole();
fprintf(stderr, "An error occurred, re-run in forground mode (-f) for more information\n");
}
}
}
#endif
Service *svc = svc->Get();
if (!svc->Initialize())
if (consoleActive)
{
DEBUG_ERROR("Failed to initialize service");
fprintf(stderr, "\nPress enter to terminate...");
fflush(stderr);
getc(stdin);
}
return ret;
}
int run(struct StartupArgs & args)
{
if (args.foreground)
setupConsole();
ICapture * captureDevice;
if (args.captureDevice == NULL)
captureDevice = CaptureFactory::DetectDevice(&args.captureOptions);
else
{
captureDevice = CaptureFactory::GetDevice(args.captureDevice, &args.captureOptions);
if (!captureDevice)
{
setupConsole();
fprintf(stderr, "Failed to configure requested capture device\n");
return -1;
}
}
if (!captureDevice)
{
setupConsole();
fprintf(stderr, "Unable to configure a capture device\n");
return -1;
}
Service *svc = svc->Get();
if (!svc->Initialize(captureDevice))
return -1;
while (true)
if (!svc->Process())
break;
svc->DeInitialize();
#ifdef DEBUG
getc(stdin);
#endif
return 0;
}
int parseArgs(struct StartupArgs & args)
{
int c;
while((c = getopt(__argc, __argv, "hc:o:fl")) != -1)
{
switch (c)
{
case '?':
case 'h':
doHelp();
return -1;
case 'c':
{
const CaptureFactory::DeviceList deviceList = CaptureFactory::GetDevices();
bool found = false;
if (strcmp(optarg, "?") != 0)
{
for (CaptureFactory::DeviceList::const_iterator it = deviceList.begin(); it != deviceList.end(); ++it)
{
if (_strcmpi(optarg, (*it)->GetName()) == 0)
{
args.captureDevice = (*it)->GetName();
found = true;
break;
}
}
if (!found)
{
setupConsole();
fprintf(stderr, "Invalid capture device: %s\n\n", optarg);
}
}
if (!found)
{
setupConsole();
fprintf(stderr, "Available Capture Devices:\n\n");
for (CaptureFactory::DeviceList::const_iterator it = deviceList.begin(); it != deviceList.end(); ++it)
fprintf(stderr, " %s\n", (*it)->GetName());
return -1;
}
break;
}
case 'o':
{
args.captureOptions.push_back(optarg);
break;
}
case 'f':
args.foreground = true;
break;
case 'l':
doLicense();
return -1;
}
}
return 0;
}
void doHelp()
{
setupConsole();
const char *app = PathFindFileNameA(__argv[0]);
fprintf(stderr,
"Usage: %s [OPTION]...\n"
"Example: %s -c ?\n"
"\n"
" -h Print out this help\n"
" -c Specify the capture device to use or ? to list availble (device is probed if not specified)\n"
" -o Option to pass to the capture device, may be specified multiple times for extra options\n"
" -f Foreground mode\n"
" -l License information\n",
app,
app
);
}
void doLicense()
{
setupConsole();
fprintf(stderr,
"KVMGFX Client - A KVM Client for VGA Passthrough\n"
"Copyright(C) 2017 Geoffrey McRae <geoff@hostfission.com>\n"
"\n"
"This program is free software; you can redistribute it and / or modify it under\n"
"the terms of the GNU General Public License as published by the Free Software\n"
"Foundation; either version 2 of the License, or (at your option) any later\n"
"version.\n"
"\n"
"This program is distributed in the hope that it will be useful, but WITHOUT ANY\n"
"WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A\n"
"PARTICULAR PURPOSE.See the GNU General Public License for more details.\n"
"\n"
"You should have received a copy of the GNU General Public License along with\n"
"this program; if not, write to the Free Software Foundation, Inc., 59 Temple\n"
"Place, Suite 330, Boston, MA 02111 - 1307 USA\n"
);
}
void setupConsole()
{
if (consoleActive)
return;
HANDLE _handle;
int _conout;
FILE * fp;
AllocConsole();
CONSOLE_SCREEN_BUFFER_INFO conInfo;
GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE), &conInfo);
conInfo.dwSize.Y = 500;
SetConsoleScreenBufferSize(GetStdHandle(STD_OUTPUT_HANDLE), conInfo.dwSize);
_handle = GetStdHandle(STD_INPUT_HANDLE);
_conout = _open_osfhandle((intptr_t)_handle, _O_TEXT);
fp = _fdopen(_conout, "r");
freopen_s(&fp, "CONIN$", "r", stdin);
_handle = GetStdHandle(STD_OUTPUT_HANDLE);
_conout = _open_osfhandle((intptr_t)_handle, _O_TEXT);
fp = _fdopen(_conout, "w");
freopen_s(&fp, "CONOUT$", "w", stdout);
_handle = GetStdHandle(STD_ERROR_HANDLE);
_conout = _open_osfhandle((intptr_t)_handle, _O_TEXT);
fp = _fdopen(_conout, "w");
freopen_s(&fp, "CONOUT$", "w", stderr);
std::ios::sync_with_stdio();
std::wcout.clear();
std::cout.clear();
std::wcerr.clear();
std::cerr.clear();
std::wcin.clear();
std::cin.clear();
consoleActive = true;
}