397 lines
10 KiB
C
397 lines
10 KiB
C
/*
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* Q&D Uninstaller (main.c)
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*
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* Copyright 2000 Andreas Mohr <a.mohr@mailto.de>
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* To be distributed under the Wine License
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <time.h>
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#include <windows.h>
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#include "main.h"
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#include "regstr.h"
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/* Work around a Wine bug which defines handles as UINT rather than LPVOID */
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#ifdef WINE_STRICT
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#define NULL_HANDLE NULL
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#else
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#define NULL_HANDLE 0
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#endif
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#ifdef DUMB_DEBUG
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#include <stdio.h>
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#define DEBUG(x) fprintf(stderr,x)
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#else
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#define DEBUG(x)
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#endif
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/* use multi-select listbox */
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#undef USE_MULTIPLESEL
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/* Delete uninstall registry key after execution.
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* This is probably a bad idea, because it's the
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* uninstall program that is supposed to do that.
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*/
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#undef DEL_REG_KEY
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char appname[18];
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static char about_string[] =
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"Windows program uninstaller (C) 2000 by Andreas Mohr <a.mohr@mailto.de>";
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static char program_description[] =
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"Welcome to the Wine uninstaller !\n\nThe purpose of this program is to let you get rid of all those fantastic programs that somehow manage to always take way too much space on your HDD :-)";
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typedef struct {
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char *key;
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char *descr;
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char *command;
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int active;
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} uninst_entry;
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uninst_entry *entries = NULL;
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int numentries = 0;
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struct {
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DWORD style;
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LPCSTR text;
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HWND hwnd;
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} button[] =
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{
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{ BS_PUSHBUTTON, "Add/Remove", 0 },
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{ BS_PUSHBUTTON, "About", 0 },
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{ BS_PUSHBUTTON, "Exit", 0 }
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};
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#define NUM (sizeof button/sizeof button[0])
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int GetUninstallStrings(void);
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void UninstallProgram(void);
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void ListUninstallPrograms(void)
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{
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int i;
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if (! GetUninstallStrings())
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exit(1);
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for (i=0; i < numentries; i++)
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printf("%s|||%s\n", entries[i].key, entries[i].descr);
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}
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void RemoveSpecificProgram(char *name)
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{
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int i;
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if (! GetUninstallStrings())
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exit(1);
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for (i=0; i < numentries; i++)
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{
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if (strcmp(entries[i].key, name) == 0)
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{
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entries[i].active++;
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break;
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}
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}
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if (i < numentries)
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UninstallProgram();
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else
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{
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fprintf(stderr, "Error: could not match program [%s]\n", name);
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}
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}
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int WINAPI WinMain( HINSTANCE hInst, HINSTANCE hPrevInst, LPSTR cmdline, int cmdshow )
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{
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MSG msg;
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WNDCLASS wc;
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HWND hWnd;
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/*------------------------------------------------------------------------
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** Handle requests just to list the programs
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**----------------------------------------------------------------------*/
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if (cmdline && strlen(cmdline) >= 6 && memcmp(cmdline, "--list", 6) == 0)
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{
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ListUninstallPrograms();
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return(0);
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}
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/*------------------------------------------------------------------------
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** Handle requests to remove one program
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**----------------------------------------------------------------------*/
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if (cmdline && strlen(cmdline) > 9 && memcmp(cmdline, "--remove ", 9) == 0)
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{
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RemoveSpecificProgram(cmdline + 9);
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return(0);
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}
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LoadString( hInst, IDS_APPNAME, appname, sizeof(appname));
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wc.style = 0;
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wc.lpfnWndProc = MainProc;
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wc.cbClsExtra = 0;
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wc.cbWndExtra = 0;
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wc.hInstance = hInst;
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wc.hIcon = LoadIcon( hInst, appname );
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wc.hCursor = LoadCursor( NULL_HANDLE, IDI_APPLICATION );
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wc.hbrBackground = (HBRUSH) GetStockObject( LTGRAY_BRUSH );
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wc.lpszMenuName = NULL;
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wc.lpszClassName = appname;
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if (!RegisterClass(&wc)) exit(1);
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hWnd = CreateWindow( appname, appname,
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WS_OVERLAPPEDWINDOW & ~WS_THICKFRAME & ~WS_MAXIMIZEBOX,
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CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
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NULL_HANDLE, NULL_HANDLE, hInst, NULL );
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if (!hWnd) exit(1);
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ShowWindow( hWnd, cmdshow );
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UpdateWindow( hWnd );
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while( GetMessage(&msg, NULL_HANDLE, 0, 0) ) {
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TranslateMessage( &msg );
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DispatchMessage( &msg );
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}
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return msg.wParam;
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}
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int GetUninstallStrings(void)
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{
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HKEY hkeyUninst, hkeyApp;
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int i;
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DWORD sizeOfSubKeyName=255, displen, uninstlen;
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char subKeyName[256];
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char key_app[1024];
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char *p;
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if ( RegOpenKeyEx(HKEY_LOCAL_MACHINE, REGSTR_PATH_UNINSTALL,
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0, KEY_READ, &hkeyUninst) != ERROR_SUCCESS )
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{
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MessageBox(0, "Uninstall registry key not available (yet), nothing to do !", appname, MB_OK);
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return 0;
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}
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strcpy(key_app, REGSTR_PATH_UNINSTALL);
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strcat(key_app, "\\");
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p = key_app+strlen(REGSTR_PATH_UNINSTALL)+1;
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for ( i=0;
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RegEnumKeyExA( hkeyUninst, i, subKeyName, &sizeOfSubKeyName,
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NULL, NULL, NULL, NULL ) != ERROR_NO_MORE_ITEMS;
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++i, sizeOfSubKeyName=255 )
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{
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strcpy(p, subKeyName);
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RegOpenKeyEx(HKEY_LOCAL_MACHINE, key_app, 0, KEY_READ, &hkeyApp);
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if ( (RegQueryValueEx(hkeyApp, REGSTR_VAL_UNINSTALLER_DISPLAYNAME,
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0, 0, NULL, &displen) == ERROR_SUCCESS)
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&& (RegQueryValueEx(hkeyApp, REGSTR_VAL_UNINSTALLER_COMMANDLINE,
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0, 0, NULL, &uninstlen) == ERROR_SUCCESS) )
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{
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numentries++;
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entries = HeapReAlloc(GetProcessHeap(), 0, entries, numentries*sizeof(uninst_entry));
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entries[numentries-1].key =
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HeapAlloc(GetProcessHeap(), 0, strlen(subKeyName)+1);
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strcpy(entries[numentries-1].key, subKeyName);
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entries[numentries-1].descr =
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HeapAlloc(GetProcessHeap(), 0, displen);
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RegQueryValueEx(hkeyApp, REGSTR_VAL_UNINSTALLER_DISPLAYNAME, 0, 0,
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entries[numentries-1].descr, &displen);
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entries[numentries-1].command =
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HeapAlloc(GetProcessHeap(), 0, uninstlen);
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entries[numentries-1].active = 0;
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RegQueryValueEx(hkeyApp, REGSTR_VAL_UNINSTALLER_COMMANDLINE, 0, 0,
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entries[numentries-1].command, &uninstlen);
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}
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RegCloseKey(hkeyApp);
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}
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RegCloseKey(hkeyUninst);
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return 1;
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}
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void UninstallProgram(void)
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{
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int i;
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char errormsg[1024];
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BOOL res;
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STARTUPINFO si;
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PROCESS_INFORMATION info;
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DWORD exit_code;
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#ifdef DEL_REG_KEY
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HKEY hkey;
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#endif
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for (i=0; i < numentries; i++)
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{
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if (!(entries[i].active)) /* don't uninstall this one */
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continue;
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memset(&si, 0, sizeof(STARTUPINFO));
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si.cb = sizeof(STARTUPINFO);
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si.wShowWindow = SW_NORMAL;
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res = CreateProcess(NULL, entries[i].command, NULL, NULL, FALSE, 0, NULL, NULL, &si, &info);
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if (res == TRUE)
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{ /* wait for the process to exit */
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WaitForSingleObject(info.hProcess, INFINITE);
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res = GetExitCodeProcess(info.hProcess, &exit_code);
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fprintf(stderr, "%d: %08lx\n", res, exit_code);
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#ifdef DEL_REG_KEY
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/* delete the program's uninstall entry */
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if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, REGSTR_PATH_UNINSTALL,
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0, KEY_READ, &hkey) == ERROR_SUCCESS)
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{
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RegDeleteKey(hkey, entries[i].key);
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RegCloseKey(hkey);
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}
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#endif
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}
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else
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{
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sprintf(errormsg, "Execution of uninstall command '%s' failed, perhaps due to missing executable.", entries[i].command);
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MessageBox(0, errormsg, appname, MB_OK);
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}
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}
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}
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LRESULT WINAPI MainProc( HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
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{
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HDC hdc;
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PAINTSTRUCT ps;
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TEXTMETRIC tm;
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int cxChar, cyChar, i, y, bx, by, maxx, maxy, wx, wy;
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static HWND hwndList = 0, hwndEdit = 0;
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DWORD style;
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RECT rect;
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switch( msg ) {
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case WM_CREATE:
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{
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if (!(GetUninstallStrings()))
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{
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PostQuitMessage(0);
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return 0;
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}
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hdc = GetDC(hWnd);
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GetTextMetrics(hdc, &tm);
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cxChar = tm.tmAveCharWidth;
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cyChar = tm.tmHeight + tm.tmExternalLeading;
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ReleaseDC(hWnd, hdc);
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/* FIXME: implement sorting and use LBS_SORT here ! */
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style = (WS_CHILD|WS_VISIBLE|LBS_STANDARD) & ~LBS_SORT;
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#ifdef USE_MULTIPLESEL
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style |= LBS_MULTIPLESEL;
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#endif
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bx = maxx = cxChar * 5;
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by = maxy = cyChar * 3;
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hwndList = CreateWindow("listbox", NULL,
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style,
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maxx, maxy,
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cxChar * 50 + GetSystemMetrics(SM_CXVSCROLL), cyChar * 20,
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hWnd, (HMENU) 1,
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(HINSTANCE)GetWindowLong(hWnd, GWL_HINSTANCE), NULL);
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GetWindowRect(hwndList, &rect);
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y = by;
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maxx += (rect.right - rect.left)*1.1;
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maxy += (rect.bottom - rect.top)*1.1;
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wx = 20*cxChar;
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wy = 7*cyChar/4;
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for (i=0; i < NUM; i++)
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{
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button[i].hwnd = CreateWindow("button", button[i].text,
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WS_CHILD|WS_VISIBLE|BS_PUSHBUTTON,
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maxx, y,
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wx, wy,
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hWnd, (HMENU)i,
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((LPCREATESTRUCT)lParam)->hInstance, NULL);
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if (!button[i].hwnd)
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PostQuitMessage(0);
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y += 2*cyChar;
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}
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CreateWindow("static", program_description,
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WS_CHILD|WS_VISIBLE|SS_LEFT,
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bx, maxy,
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cxChar * 50, wy,
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hWnd, (HMENU)1,
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((LPCREATESTRUCT)lParam)->hInstance, NULL);
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maxx += wx + cxChar * 5; /* button + right border */
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maxy += cyChar * 5 + cyChar * 2; /* static text + distance */
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CreateWindow("static", "command line to be executed:",
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WS_CHILD|WS_VISIBLE|SS_LEFT,
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bx, maxy,
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cxChar * 50, cyChar,
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hWnd, (HMENU)1,
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((LPCREATESTRUCT)lParam)->hInstance, NULL);
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maxy += cyChar;
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hwndEdit = CreateWindow("edit", NULL,
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WS_CHILD|WS_VISIBLE|WS_BORDER|ES_LEFT|ES_MULTILINE|ES_READONLY,
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bx, maxy, maxx-(2*bx), (cyChar*6)+4,
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hWnd, (HMENU)1,
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((LPCREATESTRUCT)lParam)->hInstance, NULL);
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maxy += (cyChar*6)+4 + cyChar * 3; /* edit ctrl + bottom border */
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SetWindowPos( hWnd, 0,
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0, 0, maxx, maxy,
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SWP_NOMOVE);
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return 0;
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}
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case WM_PAINT:
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{
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SendMessage(hwndList, LB_RESETCONTENT, 0, 0);
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SendMessage(hwndList, WM_SETREDRAW, FALSE, 0);
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for (i=0; i < numentries; i++)
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SendMessage(hwndList, LB_ADDSTRING, 0, (LPARAM)entries[i].descr);
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SendMessage(hwndList, WM_SETREDRAW, TRUE, 0);
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hdc = BeginPaint( hWnd, &ps );
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EndPaint( hWnd, &ps );
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return 0;
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}
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case WM_DESTROY:
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PostQuitMessage( 0 );
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return 0;
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case WM_COMMAND:
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if ((HWND)lParam == hwndList)
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{
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if (HIWORD(wParam) == LBN_SELCHANGE)
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{
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int sel = SendMessage(hwndList, LB_GETCURSEL, 0, 0);
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entries[sel].active ^= 1; /* toggle */
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SendMessage(hwndEdit, WM_SETTEXT, 0, (LPARAM)entries[sel].command);
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}
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}
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else
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if ((HWND)lParam == button[0].hwnd) /* Uninstall button */
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{
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UninstallProgram();
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/* update listbox */
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numentries = 0;
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GetUninstallStrings();
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InvalidateRect(hWnd, NULL, TRUE);
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UpdateWindow(hWnd);
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}
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else
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if ((HWND)lParam == button[1].hwnd) /* About button */
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MessageBox(0, about_string, "About", MB_OK);
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else
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if ((HWND)lParam == button[2].hwnd) /* Exit button */
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PostQuitMessage(0);
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return 0;
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}
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return( DefWindowProc( hWnd, msg, wParam, lParam ));
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}
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