programs/start/start.c

   1 /*
   2  * Start a program using ShellExecuteEx, optionally wait for it to finish
   3  * Compatible with Microsoft's "c:\windows\command\start.exe"
   4  *
   5  * Copyright 2003 Dan Kegel
   6  * Copyright 2007 Lyutin Anatoly (Etersoft)
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  21  */
  22
  23 #include <windows.h>
  24 #include <winuser.h>
  25 #include <stdio.h>
  26 #include <stdlib.h>
  27 #include <shlobj.h>
  28
  29 #include <wine/unicode.h>
  30 #include <wine/debug.h>
  31
  32 #include "resources.h"
  33
  34 WINE_DEFAULT_DEBUG_CHANNEL(start);
  35
  36 /**
  37  Output given message to stdout without formatting.
  38 */
  39 static void output(const WCHAR *message)
  40 {
  41         DWORD count;
  42         DWORD   res;
  43         int    wlen = strlenW(message);
  44
  45         if (!wlen) return;
  46
  47         res = WriteConsoleW(GetStdHandle(STD_OUTPUT_HANDLE), message, wlen, &count, NULL);
  48
  49         /* If writing to console fails, assume its file
  50         i/o so convert to OEM codepage and output                  */
  51         if (!res)
  52         {
  53                 DWORD len;
  54                 char  *mesA;
  55                 /* Convert to OEM, then output */
  56                 len = WideCharToMultiByte( GetConsoleOutputCP(), 0, message, wlen, NULL, 0, NULL, NULL );
  57                 mesA = HeapAlloc(GetProcessHeap(), 0, len*sizeof(char));
  58                 if (!mesA) return;
  59                 WideCharToMultiByte( GetConsoleOutputCP(), 0, message, wlen, mesA, len, NULL, NULL );
  60                 WriteFile(GetStdHandle(STD_OUTPUT_HANDLE), mesA, len, &count, FALSE);
  61                 HeapFree(GetProcessHeap(), 0, mesA);
  62         }
  63 }
  64
  65 /**
  66  Output given message from string table,
  67  followed by ": ",
  68  followed by description of given GetLastError() value to stdout,
  69  followed by a trailing newline,
  70  then terminate.
  71 */
  72
  73 static void fatal_error(const WCHAR *msg, DWORD error_code)
  74 {
  75     LPVOID lpMsgBuf;
  76     int status;
  77     static const WCHAR colonsW[] = { ':', ' ', 0 };
  78     static const WCHAR newlineW[] = { '\n', 0 };
  79
  80     output(msg);
  81     output(colonsW);
  82     status = FormatMessageW(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM, NULL, error_code, 0, (LPWSTR) & lpMsgBuf, 0, NULL);
  83     if (!status)
  84     {
  85         WINE_ERR("FormatMessage failed\n");
  86     } else
  87     {
  88         output(lpMsgBuf);
  89         LocalFree((HLOCAL) lpMsgBuf);
  90         output(newlineW);
  91     }
  92     ExitProcess(1);
  93 }
  94
  95 static void fatal_string_error(int which, DWORD error_code)
  96 {
  97         WCHAR msg[2048];
  98
  99         if (!LoadStringW(GetModuleHandle(NULL), which,
 100                                         msg, sizeof(msg)/sizeof(WCHAR)))
 101                 WINE_ERR("LoadString failed, error %d\n", GetLastError());
 102
 103         fatal_error(msg, error_code);
 104 }
 105
 106 static void fatal_string(int which)
 107 {
 108         WCHAR msg[2048];
 109
 110         if (!LoadStringW(GetModuleHandle(NULL), which,
 111                                         msg, sizeof(msg)/sizeof(WCHAR)))
 112                 WINE_ERR("LoadString failed, error %d\n", GetLastError());
 113
 114         output(msg);
 115         ExitProcess(1);
 116 }
 117
 118 static void usage(void)
 119 {
 120         fatal_string(STRING_USAGE);
 121 }
 122
 123 static void license(void)
 124 {
 125         fatal_string(STRING_LICENSE);
 126 }
 127
 128 static WCHAR *build_args( int argc, WCHAR **argvW )
 129 {
 130         int i, wlen = 1;
 131         WCHAR *ret, *p;
 132         static const WCHAR FormatQuotesW[] = { ' ', '\"', '%', 's', '\"', 0 };
 133         static const WCHAR FormatW[] = { ' ', '%', 's', 0 };
 134
 135         for (i = 0; i < argc; i++ )
 136         {
 137                 wlen += strlenW(argvW[i]) + 1;
 138                 if (strchrW(argvW[i], ' '))
 139                         wlen += 2;
 140         }
 141         ret = HeapAlloc( GetProcessHeap(), 0, wlen*sizeof(WCHAR) );
 142         ret[0] = 0;
 143
 144         for (i = 0, p = ret; i < argc; i++ )
 145         {
 146                 if (strchrW(argvW[i], ' '))
 147                         p += sprintfW(p, FormatQuotesW, argvW[i]);
 148                 else
 149                         p += sprintfW(p, FormatW, argvW[i]);
 150         }
 151         return ret;
 152 }
 153
 154 static WCHAR *get_parent_dir(WCHAR* path)
 155 {
 156         WCHAR *last_slash;
 157         WCHAR *result;
 158         int len;
 159
 160         last_slash = strrchrW( path, '\\' );
 161         if (last_slash == NULL)
 162                 len = 1;
 163         else
 164                 len = last_slash - path + 1;
 165
 166         result = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
 167         CopyMemory(result, path, (len-1)*sizeof(WCHAR));
 168         result[len-1] = '\0';
 169
 170         return result;
 171 }
 172
 173 int wmain (int argc, WCHAR *argv[])
 174 {
 175         SHELLEXECUTEINFOW sei;
 176         WCHAR *args = NULL;
 177         int i;
 178         int unix_mode = 0;
 179         WCHAR *dos_filename = NULL;
 180         WCHAR *parent_directory = NULL;
 181         DWORD binary_type;
 182
 183         static const WCHAR openW[] = { 'o', 'p', 'e', 'n', 0 };
 184         static const WCHAR unixW[] = { 'u', 'n', 'i', 'x', 0 };
 185
 186         memset(&sei, 0, sizeof(sei));
 187         sei.cbSize = sizeof(sei);
 188         sei.lpVerb = openW;
 189         sei.nShow = SW_SHOWNORMAL;
 190         /* Dunno what these mean, but it looks like winMe's start uses them */
 191         sei.fMask = SEE_MASK_FLAG_DDEWAIT|
 192                     SEE_MASK_FLAG_NO_UI|
 193                     SEE_MASK_NO_CONSOLE;
 194
 195         /* Canonical Microsoft commandline flag processing:
 196          * flags start with /, are case insensitive,
 197          * and may be run together in same word.
 198          */
 199         for (i=1; i<argc; i++) {
 200                 int ci;
 201
 202                 if (argv[i][0] != '/')
 203                         break;
 204
 205                 /* Unix paths can start with / so we have to assume anything following /U is not a flag */
 206                 if (unix_mode)
 207                         break;
 208
 209                 /* Handle all options in this word */
 210                 for (ci=0; argv[i][ci]; ) {
 211                         /* Skip slash */
 212                         ci++;
 213                         switch(argv[i][ci]) {
 214                         case 'l':
 215                         case 'L':
 216                                 license();
 217                                 break;  /* notreached */
 218                         case 'm':
 219                         case 'M':
 220                                 if (argv[i][ci+1] == 'a' || argv[i][ci+1] == 'A')
 221                                         sei.nShow = SW_SHOWMAXIMIZED;
 222                                 else
 223                                         sei.nShow = SW_SHOWMINIMIZED;
 224                                 break;
 225                         case 'r':
 226                         case 'R':
 227                                 /* sei.nShow = SW_SHOWNORMAL; */
 228                                 break;
 229                         case 'u':
 230                         case 'U':
 231                                 if (strncmpiW(&argv[i][ci], unixW, 4) == 0)
 232                                         unix_mode = 1;
 233                                 else {
 234                                         WINE_ERR("Option '%s' not recognized\n", wine_dbgstr_w( argv[i]+ci-1));
 235                                         usage();
 236                                 }
 237                                 break;
 238                         case 'w':
 239                         case 'W':
 240                                 sei.fMask |= SEE_MASK_NOCLOSEPROCESS;
 241                                 break;
 242                         default:
 243                                 WINE_ERR("Option '%s' not recognized\n", wine_dbgstr_w( argv[i]+ci-1));
 244                                 usage();
 245                         }
 246                         /* Skip to next slash */
 247                         while (argv[i][ci] && (argv[i][ci] != '/'))
 248                                 ci++;
 249                 }
 250         }
 251
 252         if (i == argc)
 253                 usage();
 254
 255         sei.lpFile = argv[i++];
 256
 257         args = build_args( argc - i, &argv[i] );
 258         sei.lpParameters = args;
 259
 260         if (unix_mode) {
 261                 LPWSTR (*wine_get_dos_file_name_ptr)(LPCSTR);
 262                 char* multibyte_unixpath;
 263                 int multibyte_unixpath_len;
 264
 265                 wine_get_dos_file_name_ptr = (void*)GetProcAddress(GetModuleHandle("KERNEL32"), "wine_get_dos_file_name");
 266
 267                 if (!wine_get_dos_file_name_ptr)
 268                         fatal_string(STRING_UNIXFAIL);
 269
 270                 multibyte_unixpath_len = WideCharToMultiByte(CP_UNIXCP, 0, sei.lpFile, -1, NULL, 0, NULL, NULL);
 271                 multibyte_unixpath = HeapAlloc(GetProcessHeap(), 0, multibyte_unixpath_len);
 272
 273                 WideCharToMultiByte(CP_UNIXCP, 0, sei.lpFile, -1, multibyte_unixpath, multibyte_unixpath_len, NULL, NULL);
 274
 275                 dos_filename = wine_get_dos_file_name_ptr(multibyte_unixpath);
 276
 277                 HeapFree(GetProcessHeap(), 0, multibyte_unixpath);
 278
 279                 if (!dos_filename)
 280                         fatal_string(STRING_UNIXFAIL);
 281
 282                 sei.lpFile = dos_filename;
 283                 sei.lpDirectory = parent_directory = get_parent_dir(dos_filename);
 284
 285                 if (GetBinaryTypeW(sei.lpFile, &binary_type)) {
 286                     WCHAR *commandline;
 287                     STARTUPINFOW startup_info;
 288                     PROCESS_INFORMATION process_information;
 289                     static WCHAR commandlineformat[] = {'"','%','s','"','%','s',0};
 290
 291                     /* explorer on windows always quotes the filename when running a binary on windows (see bug 5224) so we have to use CreateProcessW in this case */
 292
 293                     commandline = HeapAlloc(GetProcessHeap(), 0, (strlenW(sei.lpFile)+3+strlenW(sei.lpParameters))*sizeof(WCHAR));
 294                     sprintfW(commandline, commandlineformat, sei.lpFile, sei.lpParameters);
 295
 296                     ZeroMemory(&startup_info, sizeof(startup_info));
 297                     startup_info.cb = sizeof(startup_info);
 298
 299                     if (!CreateProcessW(
 300                             NULL, /* lpApplicationName */
 301                             commandline, /* lpCommandLine */
 302                             NULL, /* lpProcessAttributes */
 303                             NULL, /* lpThreadAttributes */
 304                             FALSE, /* bInheritHandles */
 305                             CREATE_NEW_CONSOLE, /* dwCreationFlags */
 306                             NULL, /* lpEnvironment */
 307                             sei.lpDirectory, /* lpCurrentDirectory */
 308                             &startup_info, /* lpStartupInfo */
 309                             &process_information /* lpProcessInformation */ ))
 310                     {
 311                         fatal_string_error(STRING_EXECFAIL, GetLastError());
 312                     }
 313                     sei.hProcess = process_information.hProcess;
 314                 }
 315         }
 316         else if (!ShellExecuteExW(&sei))
 317                 fatal_string_error(STRING_EXECFAIL, GetLastError());
 318
 319         HeapFree( GetProcessHeap(), 0, args );
 320         HeapFree( GetProcessHeap(), 0, dos_filename );
 321         HeapFree( GetProcessHeap(), 0, parent_directory );
 322
 323         if (sei.fMask & SEE_MASK_NOCLOSEPROCESS) {
 324                 DWORD exitcode;
 325                 WaitForSingleObject(sei.hProcess, INFINITE);
 326                 GetExitCodeProcess(sei.hProcess, &exitcode);
 327                 ExitProcess(exitcode);
 328         }
 329
 330         ExitProcess(0);
 331 }