native/runner/runnerw/runnerw.cpp

   1 #include <windows.h>
   2 #include <stdio.h>
   3 #include <tlhelp32.h>
   4 #include <iostream>
   5 #include <string>
   6
   7 void PrintUsage() {
   8         printf("Usage: runnerw.exe <app> <args>\n");
   9         printf("where <app> is console application and <args> it's arguments.\n");
  10         printf("\n");
  11         printf(
  12                         "Runner invokes console application as a process with inherited input and output streams.\n");
  13         printf(
  14                         "Input stream is scanned for presence of 2 char 255(IAC) and 243(BRK) sequence and generates Ctrl-Break event in that case.\n");
  15         printf(
  16                         "Also in case of all type of event(Ctrl-C, Close, Shutdown etc) Ctrl-Break event is generated.\n");
  17
  18         exit(0);
  19 }
  20
  21 void ErrorMessage(char *str) {
  22
  23         LPVOID msg;
  24
  25         FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM,
  26                         NULL, GetLastError(), MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
  27                         (LPTSTR) &msg, 0, NULL);
  28
  29         printf("%s: %s\n", str, msg);
  30         LocalFree(msg);
  31 }
  32
  33 void CtrlBreak() {
  34         if (!GenerateConsoleCtrlEvent(CTRL_BREAK_EVENT, 0)) {
  35                 ErrorMessage("GenerateConsoleCtrlEvent");
  36         }
  37 }
  38
  39 BOOL is_iac = FALSE;
  40
  41 char IAC = 5;
  42 char BRK = 3;
  43
  44 BOOL Scan(char buf[], int count) {
  45         for (int i = 0; i < count; i++) {
  46                 if (is_iac) {
  47                         if (buf[i] == BRK) {
  48                                 CtrlBreak();
  49                                 return TRUE;
  50                         } else {
  51                                 is_iac = FALSE;
  52                         }
  53                 }
  54                 if (buf[i] == IAC) {
  55                         is_iac = TRUE;
  56                 }
  57         }
  58
  59         return FALSE;
  60 }
  61
  62 BOOL CtrlHandler(DWORD fdwCtrlType) {
  63         switch (fdwCtrlType) {
  64         case CTRL_C_EVENT:
  65         case CTRL_CLOSE_EVENT:
  66         case CTRL_LOGOFF_EVENT:
  67         case CTRL_SHUTDOWN_EVENT:
  68                 CtrlBreak();
  69                 return (TRUE);
  70         case CTRL_BREAK_EVENT:
  71                 return FALSE;
  72         default:
  73                 return FALSE;
  74         }
  75 }
  76
  77 struct StdInThreadParams
  78 {
  79         HANDLE hEvent;
  80         HANDLE write_stdin;
  81 };
  82
  83 DWORD WINAPI StdInThread(void *param)
  84 {
  85         StdInThreadParams *threadParams = (StdInThreadParams *) param;
  86         char buf[1];
  87         memset(buf, 0, sizeof(buf));
  88
  89         HANDLE hStdin = GetStdHandle(STD_INPUT_HANDLE);
  90         while(true)
  91         {
  92                 DWORD cbRead = 0;
  93                 DWORD cbWrite = 0;
  94
  95                 char c;
  96                 ReadFile(hStdin, &c, 1, &cbRead, NULL);
  97                 if (cbRead > 0)
  98                 {
  99                         buf[0] = c;
 100                         bool ctrlBroken = Scan(buf, 1);
 101                         WriteFile(threadParams->write_stdin, buf, 1, &cbWrite, NULL);
 102                         if (ctrlBroken)
 103                         {
 104                                 SetEvent(threadParams->hEvent);
 105                                 break;
 106                         }
 107                 }
 108         }
 109         return 0;
 110 }
 111
 112 int main(int argc, char * argv[]) {
 113         if (argc < 2) {
 114                 PrintUsage();
 115         }
 116
 117         std::string app(argv[1]);
 118         std::string args("");
 119
 120         for (int i = 2; i < argc; i++) {
 121                 args += " ";
 122                 if (strchr(argv [i], ' '))
 123                 {
 124                         args += "\"";
 125                         args += argv[i];
 126                         args += "\"";
 127                 }
 128                 else
 129                 {
 130                         args += argv[i];
 131                 }
 132         }
 133
 134         if (app.length() == 0) {
 135                 PrintUsage();
 136         }
 137
 138         STARTUPINFO si;
 139         SECURITY_ATTRIBUTES sa;
 140         PROCESS_INFORMATION pi;
 141
 142         HANDLE newstdin, write_stdin;
 143
 144         sa.lpSecurityDescriptor = NULL;
 145
 146         sa.nLength = sizeof(SECURITY_ATTRIBUTES);
 147         sa.bInheritHandle = true;
 148
 149         if (!CreatePipe(&newstdin, &write_stdin, &sa, 0)) {
 150                 ErrorMessage("CreatePipe");
 151                 exit(0);
 152         }
 153
 154         GetStartupInfo(&si);
 155
 156         si.dwFlags = STARTF_USESTDHANDLES;
 157         si.wShowWindow = SW_HIDE;
 158         si.hStdOutput = GetStdHandle(STD_OUTPUT_HANDLE);
 159         si.hStdError = GetStdHandle(STD_ERROR_HANDLE);
 160         si.hStdInput = newstdin;
 161
 162         char* c_app = new char[app.size() + 1];
 163         strcpy(c_app, app.c_str());
 164
 165         char* c_args = new char[args.size() + 1];
 166         strcpy(c_args, args.c_str());
 167
 168         SetConsoleCtrlHandler((PHANDLER_ROUTINE) CtrlHandler, TRUE);
 169
 170         if (!CreateProcess(c_app, // Application name
 171                         c_args, // Application arguments
 172                         NULL, NULL, TRUE, CREATE_DEFAULT_ERROR_MODE, NULL, NULL, &si, &pi)) {
 173                 ErrorMessage("CreateProcess");
 174                 CloseHandle(newstdin);
 175                 CloseHandle(write_stdin);
 176                 exit(0);
 177         }
 178
 179         unsigned long exit = 0;
 180         unsigned long b_read;
 181         unsigned long avail;
 182
 183         HANDLE threadEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
 184
 185         StdInThreadParams params;
 186         params.hEvent = threadEvent;
 187         params.write_stdin = write_stdin;
 188
 189         CreateThread(NULL, 0, &StdInThread, &params, 0, NULL);
 190
 191         HANDLE objects_to_wait[2];
 192         objects_to_wait[0] = threadEvent;
 193         objects_to_wait[1] = pi.hProcess;
 194
 195         while(true)
 196         {
 197                 int rc = WaitForMultipleObjects(2, objects_to_wait, FALSE, INFINITE);
 198                 if (rc == WAIT_OBJECT_0 + 1)
 199                 {
 200                         break;
 201                 }
 202         }
 203
 204         GetExitCodeProcess(pi.hProcess, &exit);
 205
 206         CloseHandle(pi.hThread);
 207         CloseHandle(pi.hProcess);
 208         CloseHandle(newstdin);
 209         CloseHandle(write_stdin);
 210         return exit;
 211 }