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站长推荐:NSetup一键部署软件
一键式完成美化安装包制作，自动增量升级，数据统计，数字签名。应对各种复杂场景，脚本模块化拆分，常规复杂的脚本代码，图形化设置。无需专业的研发经验，轻松完成项目部署。(www.nsetup.cn)
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/* * Assoc.C - assoc internal command. * * * History: * * 14-Mar-2009 Lee C. Baker * - initial implementation * * 15-Mar-2009 Lee C. Baker * - Don't write to (or use) HKEY_CLASSES_ROOT directly * - Externalize strings * * TODO: * - PrintAllAssociations might could be optimized to not fetch all registry subkeys under 'Classes', just the ones that start with '.' * - Make sure that non-administrator users can list associations, and get appropriate error messages when they don't have sufficient * priveleges to perform an operation */ #ifdef INCLUDE_CMD_ASSOC static INT PrintAssociation(LPTSTR extension) { DWORD return_val; HKEY hKey = NULL, hInsideKey = NULL; DWORD fileTypeLength = 0; LPTSTR fileType = NULL; return_val = RegOpenKeyEx(HKEY_LOCAL_MACHINE, _T("SOFTWARE\\Classes"), 0, KEY_READ, &hKey); if(return_val != ERROR_SUCCESS) { RegCloseKey(hKey); return -1; } return_val = RegOpenKeyEx(hKey, extension, 0, KEY_READ, &hInsideKey); if(return_val != ERROR_SUCCESS) { RegCloseKey(hKey); RegCloseKey(hInsideKey); return 0; } /* obtain string length */ return_val = RegQueryValueEx(hInsideKey, NULL, NULL, NULL, NULL, &fileTypeLength); if(return_val == ERROR_FILE_NOT_FOUND) /* no default value, don't display */ { RegCloseKey(hInsideKey); RegCloseKey(hKey); return 0; } if(return_val != ERROR_SUCCESS) { RegCloseKey(hInsideKey); RegCloseKey(hKey); return -2; } fileType = cmd_alloc(fileTypeLength * sizeof(TCHAR)); /* obtain actual file type */ return_val = RegQueryValueEx(hInsideKey, NULL, NULL, NULL, (LPBYTE) fileType, &fileTypeLength); RegCloseKey(hInsideKey); RegCloseKey(hKey); if(return_val != ERROR_SUCCESS) { cmd_free(fileType); return -2; } if(fileTypeLength != 0) /* if there is a default key, display relevant information */ { ConOutPrintf(_T("%s=%s\r\n"), extension, fileType); } if(fileTypeLength) cmd_free(fileType); return 1; } static INT PrintAllAssociations() { DWORD return_val = 0; HKEY hKey = NULL; DWORD numKeys = 0; DWORD extLength = 0; LPTSTR extName = NULL; DWORD keyCtr = 0; return_val = RegOpenKeyEx(HKEY_LOCAL_MACHINE, _T("SOFTWARE\\Classes"), 0, KEY_READ, &hKey); if(return_val != ERROR_SUCCESS) { RegCloseKey(hKey); return -1; } return_val = RegQueryInfoKey(hKey, NULL, NULL, NULL, &numKeys, &extLength, NULL, NULL, NULL, NULL, NULL, NULL); if(return_val != ERROR_SUCCESS) { RegCloseKey(hKey); return -2; } extName = cmd_alloc(extLength * sizeof(TCHAR)); for(keyCtr = 0; keyCtr < numKeys; keyCtr++) { DWORD buffer_size = extLength; return_val = RegEnumKeyEx(hKey, keyCtr, extName, &buffer_size, NULL, NULL, NULL, NULL); if(return_val == ERROR_SUCCESS || return_val == ERROR_MORE_DATA) { if(*extName == _T('.')) PrintAssociation(extName); } else { cmd_free(extName); RegCloseKey(hKey); return -1; } } RegCloseKey(hKey); if(extName) cmd_free(extName); return numKeys; } static INT AddAssociation(LPTSTR extension, LPTSTR type) { DWORD return_val; HKEY hKey = NULL, insideKey = NULL; return_val = RegOpenKeyEx(HKEY_LOCAL_MACHINE, _T("SOFTWARE\\Classes"), 0, KEY_ALL_ACCESS, &hKey); if(return_val != ERROR_SUCCESS) return -1; return_val = RegCreateKeyEx(hKey, extension, 0, NULL, REG_OPTION_NON_VOLATILE, KEY_ALL_ACCESS, NULL, &insideKey, NULL); if(return_val != ERROR_SUCCESS) { RegCloseKey(hKey); return -1; } return_val = RegSetValueEx(insideKey, NULL, 0, REG_SZ, (LPBYTE)type, (_tcslen(type) + 1) * sizeof(TCHAR)); if(return_val != ERROR_SUCCESS) { RegCloseKey(insideKey); RegCloseKey(hKey); return -2; } RegCloseKey(insideKey); RegCloseKey(hKey); return 0; } static int RemoveAssociation(LPTSTR extension) { DWORD return_val; HKEY hKey; return_val = RegOpenKeyEx(HKEY_LOCAL_MACHINE, _T("SOFTWARE\\Classes"), 0, KEY_ALL_ACCESS, &hKey); if(return_val != ERROR_SUCCESS) return -1; return_val = RegDeleteKey(hKey, extension); if(return_val != ERROR_SUCCESS) { RegCloseKey(hKey); return -2; } RegCloseKey(hKey); return 0; } INT CommandAssoc (LPTSTR param) { /* print help */ if (!_tcsncmp (param, _T("/?"), 2)) { ConOutResPaging(TRUE,STRING_ASSOC_HELP); return 0; } nErrorLevel = 0; if(_tcslen(param) == 0) PrintAllAssociations(); else { LPTSTR lpEqualSign = _tcschr(param, _T('=')); if(lpEqualSign != NULL) { LPTSTR fileType = lpEqualSign + 1; LPTSTR extension = cmd_alloc((lpEqualSign - param + 1) * sizeof(TCHAR)); _tcsncpy(extension, param, lpEqualSign - param); extension[lpEqualSign - param] = (TCHAR)0; if(_tcslen(fileType) == 0) /* if the equal sign is the last character in the string, then delete the key */ { RemoveAssociation(extension); } else /* otherwise, add the key and print out the association*/ { AddAssociation( extension, fileType); PrintAssociation(extension); } cmd_free(extension); } else { /* no equal sign, print all associations */ INT retval = PrintAssociation(param); if(retval == 0) /* if nothing printed out */ ConOutResPrintf(STRING_ASSOC_ERROR, param); } } return 0; } #endif /* INCLUDE_CMD_ASSOC */ |
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