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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
import { AppConstants } from "resource://gre/modules/AppConstants.sys.mjs";
import { ctypes } from "resource://gre/modules/ctypes.sys.mjs";
const BYTE = ctypes.uint8_t;
const WORD = ctypes.uint16_t;
const DWORD = ctypes.uint32_t;
const WCHAR = ctypes.char16_t;
const BOOL = ctypes.int;
export var WindowsVersionInfo = {
UNKNOWN_VERSION_INFO: {
servicePackMajor: null,
servicePackMinor: null,
buildNumber: null,
},
/**
* Gets the service pack and build number on Windows platforms.
*
* @param opts {Object} keyword arguments
* @param opts.throwOnError {boolean} Optional, defaults to true. If set to
* false will return an object with keys set to null instead of throwing an
* error. If set to true, errors will be thrown instead.
* @throws If `throwOnError` is true and version information cannot be
* determined.
* @return {object} An object containing keys `servicePackMajor`,
* `servicePackMinor`, and `buildNumber`. If `throwOnError` is false, these
* values may be null.
*/
get({ throwOnError = true } = {}) {
function throwOrUnknown(err) {
if (throwOnError) {
throw err;
}
console.error(err);
return WindowsVersionInfo.UNKNOWN_VERSION_INFO;
}
if (AppConstants.platform !== "win") {
return throwOrUnknown(
WindowsVersionInfo.NotWindowsError(
`Cannot get Windows version info on platform ${AppConstants.platform}`
)
);
}
// This structure is described at:
// http://msdn.microsoft.com/en-us/library/ms724833%28v=vs.85%29.aspx
const SZCSDVERSIONLENGTH = 128;
const OSVERSIONINFOEXW = new ctypes.StructType("OSVERSIONINFOEXW", [
{ dwOSVersionInfoSize: DWORD },
{ dwMajorVersion: DWORD },
{ dwMinorVersion: DWORD },
{ dwBuildNumber: DWORD },
{ dwPlatformId: DWORD },
{ szCSDVersion: ctypes.ArrayType(WCHAR, SZCSDVERSIONLENGTH) },
{ wServicePackMajor: WORD },
{ wServicePackMinor: WORD },
{ wSuiteMask: WORD },
{ wProductType: BYTE },
{ wReserved: BYTE },
]);
let kernel32;
try {
kernel32 = ctypes.open("kernel32");
} catch (err) {
return throwOrUnknown(
new WindowsVersionInfo.CannotOpenKernelError(
`Unable to open kernel32! ${err}`
)
);
}
try {
let GetVersionEx = kernel32.declare(
"GetVersionExW",
ctypes.winapi_abi,
BOOL,
OSVERSIONINFOEXW.ptr
);
let winVer = OSVERSIONINFOEXW();
winVer.dwOSVersionInfoSize = OSVERSIONINFOEXW.size;
if (GetVersionEx(winVer.address()) === 0) {
throw new WindowsVersionInfo.GetVersionExError(
"Failure in GetVersionEx (returned 0)"
);
}
return {
servicePackMajor: winVer.wServicePackMajor,
servicePackMinor: winVer.wServicePackMinor,
buildNumber: winVer.dwBuildNumber,
};
} catch (err) {
return throwOrUnknown(err);
} finally {
if (kernel32) {
kernel32.close();
}
}
},
CannotOpenKernelError: class extends Error {},
GetVersionExError: class extends Error {},
NotWindowsError: class extends Error {},
};
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