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