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#include <Windows.h>
#include <Shlwapi.h>
#include <strsafe.h>
// Linker options
#pragma comment(lib, "User32.lib")
#pragma comment(lib, "shlwapi.lib")
#pragma comment(linker, "/SUBSYSTEM:windows /ENTRY:wmainCRTStartup")
#define NUM_MAX_PATH_BYTES sizeof(wchar_t) * MAX_PATH + 1
#define PROFILE_ARG L" -profile "
// Options that can be overridden at build time with -D
#ifndef B2G_NAME
#define B2G_NAME L"b2g.exe"
#endif
#ifndef GAIA_PATH
#define GAIA_PATH L"gaia\\profile"
#endif
void error(wchar_t* msg){
MessageBoxW(nullptr, msg, L"Error starting program", MB_OK | MB_ICONERROR);
}
/* This function takes a string which represents a windows path, orig.
* The file portion of the path is stripped off and replaced with the
* path component, file. This function returns a string which represents
* a windows path with the modifications requested and needs to be freed
* explicitly by the calling function.
*/
wchar_t* make_path_with_leaf_file_name(wchar_t* orig, wchar_t* file){
wchar_t* buffer = (wchar_t*) malloc(NUM_MAX_PATH_BYTES);
if (!buffer) {
return nullptr;
}
if (FAILED(StringCchCopyW(buffer, NUM_MAX_PATH_BYTES, orig))) {
error(L"Error copying string");
free(buffer);
buffer = nullptr;
}
PathRemoveFileSpecW(buffer);
if (!PathAppendW(buffer, file)) {
error(L"Unable to append file to directory");
free(buffer);
buffer = nullptr;
}
return buffer;
}
BOOL execute(wchar_t* binary_path, wchar_t* args, int cp_flags) {
STARTUPINFOW si;
PROCESS_INFORMATION pi;
ZeroMemory(&si, sizeof(si));
si.cb = sizeof(si);
ZeroMemory(&pi, sizeof(pi));
if (!CreateProcessW(
binary_path,
args,
nullptr,
nullptr,
FALSE,
cp_flags,
nullptr,
nullptr,
&si,
&pi)){
error(L"Could not execute program");
return FALSE;
}
WaitForInputIdle(pi.hProcess, 0);
CloseHandle(pi.hProcess);
CloseHandle(pi.hThread);
return true;
}
int wmain(int argc, wchar_t *argv[], wchar_t *envp[]){
int cp_flags;
wchar_t* b2g_path = make_path_with_leaf_file_name(argv[0], B2G_NAME);
wchar_t* profile_path = make_path_with_leaf_file_name(argv[0], GAIA_PATH);
// 10 chars for the ' -profile ' portion of the argument
wchar_t* args = (wchar_t*) malloc(2 * NUM_MAX_PATH_BYTES + wcslen(PROFILE_ARG));
if (FAILED(StringCchPrintfW(args, NUM_MAX_PATH_BYTES, L"\"%ws\"%ws\"%ws\"", b2g_path, PROFILE_ARG, profile_path))) {
error(L"Could not create argument string");
ExitProcess(1);
}
#ifdef SHOW_CONSOLE
cp_flags = 0;
#else
cp_flags = DETACHED_PROCESS;
#endif
if (!execute(b2g_path, args, cp_flags)) {
error(L"Failed to launch program");
}
free(profile_path);
free(b2g_path);
free(args);
profile_path = b2g_path = args = nullptr;
}
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