programs/uninstaller/main.c

   1 /*
   2  * Uninstaller
   3  *
   4  * Copyright 2000 Andreas Mohr
   5  * Copyright 2004 Hannu Valtonen
   6  * Copyright 2005 Jonathan Ernst
   7  *
   8  * This library 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 library 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 library; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  21  *
  22  */
  23
  24 #include <stdio.h>
  25 #include <string.h>
  26 #include <windows.h>
  27 #include <shlwapi.h>
  28 #include "resource.h"
  29 #include "regstr.h"
  30 #include "wine/debug.h"
  31
  32 WINE_DEFAULT_DEBUG_CHANNEL(uninstaller);
  33
  34 extern void WINAPI Control_RunDLL(HWND hWnd, HINSTANCE hInst, LPCSTR cmd, DWORD nCmdShow);
  35
  36 typedef struct {
  37     HKEY  root;
  38     WCHAR *key;
  39     WCHAR *descr;
  40     WCHAR *command;
  41     int active;
  42 } uninst_entry;
  43 static uninst_entry *entries = NULL;
  44 static unsigned int numentries = 0;
  45 static int list_need_update = 1;
  46 static int oldsel = -1;
  47 static WCHAR *sFilter;
  48
  49 static int FetchUninstallInformation(void);
  50 static void UninstallProgram(void);
  51 static int cmp_by_name(const void *a, const void *b);
  52
  53 static const WCHAR BackSlashW[] = { '\\', 0 };
  54 static const WCHAR DisplayNameW[] = {'D','i','s','p','l','a','y','N','a','m','e',0};
  55 static const WCHAR PathUninstallW[] = {
  56         'S','o','f','t','w','a','r','e','\\',
  57         'M','i','c','r','o','s','o','f','t','\\',
  58         'W','i','n','d','o','w','s','\\',
  59         'C','u','r','r','e','n','t','V','e','r','s','i','o','n','\\',
  60         'U','n','i','n','s','t','a','l','l',0 };
  61 static const WCHAR UninstallCommandlineW[] = {'U','n','i','n','s','t','a','l','l','S','t','r','i','n','g',0};
  62
  63
  64 /**
  65  * Used to output program list when used with --list
  66  */
  67 static void ListUninstallPrograms(void)
  68 {
  69     unsigned int i;
  70     int lenDescr, lenKey;
  71     char *descr;
  72     char *key;
  73
  74     FetchUninstallInformation();
  75
  76     for (i=0; i < numentries; i++)
  77     {
  78         lenDescr = WideCharToMultiByte(CP_UNIXCP, 0, entries[i].descr, -1, NULL, 0, NULL, NULL);
  79         lenKey = WideCharToMultiByte(CP_UNIXCP, 0, entries[i].key, -1, NULL, 0, NULL, NULL);
  80         descr = HeapAlloc(GetProcessHeap(), 0, lenDescr);
  81         key = HeapAlloc(GetProcessHeap(), 0, lenKey);
  82         WideCharToMultiByte(CP_UNIXCP, 0, entries[i].descr, -1, descr, lenDescr, NULL, NULL);
  83         WideCharToMultiByte(CP_UNIXCP, 0, entries[i].key, -1, key, lenKey, NULL, NULL);
  84         printf("%s|||%s\n", key, descr);
  85         HeapFree(GetProcessHeap(), 0, descr);
  86         HeapFree(GetProcessHeap(), 0, key);
  87     }
  88 }
  89
  90
  91 static void RemoveSpecificProgram(WCHAR *nameW)
  92 {
  93     unsigned int i;
  94     int lenName;
  95     char *name;
  96
  97     FetchUninstallInformation();
  98
  99     for (i=0; i < numentries; i++)
 100     {
 101         if (lstrcmpW(entries[i].key, nameW) == 0)
 102         {
 103             entries[i].active++;
 104             break;
 105         }
 106     }
 107
 108     if (i < numentries)
 109         UninstallProgram();
 110     else
 111     {
 112         lenName = WideCharToMultiByte(CP_UNIXCP, 0, nameW, -1, NULL, 0, NULL, NULL);
 113         name = HeapAlloc(GetProcessHeap(), 0, lenName);
 114         WideCharToMultiByte(CP_UNIXCP, 0, nameW, -1, name, lenName, NULL, NULL);
 115         fprintf(stderr, "Error: could not match application [%s]\n", name);
 116         HeapFree(GetProcessHeap(), 0, name);
 117     }
 118 }
 119
 120
 121 int wmain(int argc, WCHAR *argv[])
 122 {
 123     LPCWSTR token = NULL;
 124     static const WCHAR listW[] = { '-','-','l','i','s','t',0 };
 125     static const WCHAR removeW[] = { '-','-','r','e','m','o','v','e',0 };
 126     int i = 1;
 127
 128     while( i<argc )
 129     {
 130         token = argv[i++];
 131
 132         /* Handle requests just to list the applications */
 133         if( !lstrcmpW( token, listW ) )
 134         {
 135             ListUninstallPrograms();
 136             return 0;
 137         }
 138         else if( !lstrcmpW( token, removeW ) )
 139         {
 140             if( i >= argc )
 141             {
 142                 WINE_ERR( "The remove option requires a parameter.\n");
 143                 return 1;
 144             }
 145
 146             RemoveSpecificProgram( argv[i++] );
 147             return 0;
 148         }
 149         else
 150         {
 151             WINE_ERR( "unknown option %s\n",wine_dbgstr_w(token));
 152             return 1;
 153         }
 154     }
 155
 156     /* Start the GUI control panel */
 157     Control_RunDLL(GetDesktopWindow(), 0, "appwiz.cpl", SW_SHOW);
 158     return 1;
 159 }
 160
 161
 162 /**
 163  * Used to sort entries by name.
 164  */
 165 static int cmp_by_name(const void *a, const void *b)
 166 {
 167     return lstrcmpiW(((const uninst_entry *)a)->descr, ((const uninst_entry *)b)->descr);
 168 }
 169
 170
 171 /**
 172  * Fetch information from the uninstall key.
 173  */
 174 static int FetchFromRootKey(HKEY root)
 175 {
 176     HKEY hkeyUninst, hkeyApp;
 177     int i;
 178     DWORD sizeOfSubKeyName, displen, uninstlen;
 179     WCHAR subKeyName[256];
 180     WCHAR key_app[1024];
 181     WCHAR *p;
 182
 183     if (RegOpenKeyExW(root, PathUninstallW, 0, KEY_READ, &hkeyUninst) != ERROR_SUCCESS)
 184         return 0;
 185
 186     lstrcpyW(key_app, PathUninstallW);
 187     lstrcatW(key_app, BackSlashW);
 188     p = key_app+lstrlenW(PathUninstallW)+1;
 189
 190     sizeOfSubKeyName = 255;
 191     for (i=0; RegEnumKeyExW( hkeyUninst, i, subKeyName, &sizeOfSubKeyName, NULL, NULL, NULL, NULL ) != ERROR_NO_MORE_ITEMS; ++i)
 192     {
 193         lstrcpyW(p, subKeyName);
 194         RegOpenKeyExW(root, key_app, 0, KEY_READ, &hkeyApp);
 195         if ((RegQueryValueExW(hkeyApp, DisplayNameW, 0, 0, NULL, &displen) == ERROR_SUCCESS)
 196          && (RegQueryValueExW(hkeyApp, UninstallCommandlineW, 0, 0, NULL, &uninstlen) == ERROR_SUCCESS))
 197         {
 198             numentries++;
 199             entries = HeapReAlloc(GetProcessHeap(), 0, entries, numentries*sizeof(uninst_entry));
 200             entries[numentries-1].root = root;
 201             entries[numentries-1].key = HeapAlloc(GetProcessHeap(), 0, (lstrlenW(subKeyName)+1)*sizeof(WCHAR));
 202             lstrcpyW(entries[numentries-1].key, subKeyName);
 203             entries[numentries-1].descr = HeapAlloc(GetProcessHeap(), 0, displen);
 204             RegQueryValueExW(hkeyApp, DisplayNameW, 0, 0, (LPBYTE)entries[numentries-1].descr, &displen);
 205             entries[numentries-1].command = HeapAlloc(GetProcessHeap(), 0, uninstlen);
 206             entries[numentries-1].active = 0;
 207             RegQueryValueExW(hkeyApp, UninstallCommandlineW, 0, 0, (LPBYTE)entries[numentries-1].command, &uninstlen);
 208             WINE_TRACE("allocated entry #%d: %s (%s), %s\n",
 209             numentries, wine_dbgstr_w(entries[numentries-1].key), wine_dbgstr_w(entries[numentries-1].descr), wine_dbgstr_w(entries[numentries-1].command));
 210             if(sFilter != NULL && StrStrIW(entries[numentries-1].descr,sFilter)==NULL)
 211                 numentries--;
 212         }
 213         RegCloseKey(hkeyApp);
 214         sizeOfSubKeyName = 255;
 215     }
 216     RegCloseKey(hkeyUninst);
 217     return 1;
 218
 219 }
 220
 221 static int FetchUninstallInformation(void)
 222 {
 223     int rc;
 224
 225     numentries = 0;
 226     oldsel = -1;
 227     if (!entries)
 228         entries = HeapAlloc(GetProcessHeap(), 0, sizeof(uninst_entry));
 229
 230     rc = FetchFromRootKey(HKEY_LOCAL_MACHINE);
 231     rc |= FetchFromRootKey(HKEY_CURRENT_USER);
 232
 233     qsort(entries, numentries, sizeof(uninst_entry), cmp_by_name);
 234     return rc;
 235 }
 236
 237 static void UninstallProgram(void)
 238 {
 239     unsigned int i;
 240     WCHAR errormsg[1024];
 241     BOOL res;
 242     STARTUPINFOW si;
 243     PROCESS_INFORMATION info;
 244     DWORD exit_code;
 245     HKEY hkey;
 246     for (i=0; i < numentries; i++)
 247     {
 248         if (!(entries[i].active)) /* don't uninstall this one */
 249             continue;
 250         WINE_TRACE("uninstalling %s\n", wine_dbgstr_w(entries[i].descr));
 251         memset(&si, 0, sizeof(STARTUPINFOW));
 252         si.cb = sizeof(STARTUPINFOW);
 253         si.wShowWindow = SW_NORMAL;
 254         res = CreateProcessW(NULL, entries[i].command, NULL, NULL, FALSE, 0, NULL, NULL, &si, &info);
 255         if (res)
 256         {   /* wait for the process to exit */
 257             WaitForSingleObject(info.hProcess, INFINITE);
 258             res = GetExitCodeProcess(info.hProcess, &exit_code);
 259             WINE_TRACE("%d: %08x\n", res, exit_code);
 260         }
 261         else
 262         {
 263             WCHAR sAppName[MAX_STRING_LEN];
 264             WCHAR sUninstallFailed[MAX_STRING_LEN];
 265             HINSTANCE hInst = GetModuleHandleW(0);
 266
 267             LoadStringW(hInst, IDS_APPNAME, sAppName, sizeof(sAppName)/sizeof(WCHAR));
 268             LoadStringW(hInst, IDS_UNINSTALLFAILED, sUninstallFailed, sizeof(sUninstallFailed)/sizeof(WCHAR));
 269             wsprintfW(errormsg, sUninstallFailed, entries[i].command);
 270             if(MessageBoxW(0, errormsg, sAppName, MB_YESNO | MB_ICONQUESTION)==IDYES)
 271             {
 272                 /* delete the application's uninstall entry */
 273                 RegOpenKeyExW(entries[i].root, PathUninstallW, 0, KEY_READ, &hkey);
 274                 RegDeleteKeyW(hkey, entries[i].key);
 275                 RegCloseKey(hkey);
 276             }
 277         }
 278     }
 279     WINE_TRACE("finished uninstall phase.\n");
 280     list_need_update = 1;
 281 }