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Add Windows support to g_get_os_info()
Most of the info returned is static, the only thing that changes is the OS version. This code relies on g_win32_check_windows_version() providing accurate information (hopefully, MS won't nix RtlGetVersion() on which we use for that) and supplements it with information from the registry for Windows >= 8.1.
This commit is contained in:
Руслан Ижбулатов
parent
d770e00d9c
commit
fc2f566a98
230
glib/gutils.c
230
glib/gutils.c
@ -1154,6 +1154,202 @@ g_set_application_name (const gchar *application_name)
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g_warning ("g_set_application_name() called multiple times");
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}
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#ifdef G_OS_WIN32
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/* For the past versions we can just
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* hardcode all the names.
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*/
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static const struct winver
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{
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gint major;
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gint minor;
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gint sp;
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const char *version;
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const char *spversion;
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} versions[] =
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{
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{6, 2, 0, "8", ""},
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{6, 1, 1, "7", " SP1"},
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{6, 1, 0, "7", ""},
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{6, 0, 2, "Vista", " SP2"},
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{6, 0, 1, "Vista", " SP1"},
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{6, 0, 0, "Vista", ""},
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{5, 1, 3, "XP", " SP3"},
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{5, 1, 2, "XP", " SP2"},
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{5, 1, 1, "XP", " SP1"},
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{5, 1, 0, "XP", ""},
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{0, 0, 0, NULL, NULL},
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};
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static gchar *
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get_registry_str (HKEY root_key, const wchar_t *path, const wchar_t *value_name)
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{
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HKEY key_handle;
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DWORD req_value_data_size;
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DWORD req_value_data_size2;
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LONG status;
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DWORD value_type_w;
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DWORD value_type_w2;
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char *req_value_data;
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gchar *result;
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status = RegOpenKeyExW (root_key, path, 0, KEY_READ, &key_handle);
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if (status != ERROR_SUCCESS)
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return NULL;
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req_value_data_size = 0;
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status = RegQueryValueExW (key_handle,
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value_name,
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NULL,
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&value_type_w,
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NULL,
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&req_value_data_size);
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if (status != ERROR_MORE_DATA && status != ERROR_SUCCESS)
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{
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RegCloseKey (key_handle);
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return NULL;
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}
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req_value_data = g_malloc (req_value_data_size);
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req_value_data_size2 = req_value_data_size;
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status = RegQueryValueExW (key_handle,
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value_name,
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NULL,
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&value_type_w2,
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(gpointer) req_value_data,
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&req_value_data_size2);
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result = NULL;
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if (status == ERROR_SUCCESS && value_type_w2 == REG_SZ)
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result = g_utf16_to_utf8 ((gunichar2 *) req_value_data,
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req_value_data_size / sizeof (gunichar2),
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NULL,
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NULL,
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NULL);
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g_free (req_value_data);
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RegCloseKey (key_handle);
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return result;
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}
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/* Windows 8.1 can be either plain or with Update 1,
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* depending on its build number (9200 or 9600).
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*/
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static gchar *
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get_windows_8_1_update (void)
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{
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gchar *current_build;
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gchar *result = NULL;
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current_build = get_registry_str (HKEY_LOCAL_MACHINE,
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L"SOFTWARE"
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L"\\Microsoft"
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L"\\Windows NT"
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L"\\CurrentVersion",
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L"CurrentBuild");
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if (current_build != NULL)
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{
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wchar_t *end;
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long build = wcstol ((const wchar_t *) current_build, &end, 10);
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if (build <= INT_MAX &&
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build >= INT_MIN &&
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errno == 0 &&
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*end == L'\0')
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{
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if (build >= 9600)
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result = g_strdup ("Update 1");
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}
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}
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g_clear_pointer (¤t_build, g_free);
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return result;
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}
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static gchar *
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get_windows_version (gboolean with_windows)
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{
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GString *version = g_string_new (NULL);
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if (g_win32_check_windows_version (10, 0, 0, G_WIN32_OS_ANY))
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{
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gchar *win10_release;
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g_string_append (version, "10");
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if (!g_win32_check_windows_version (10, 0, 0, G_WIN32_OS_WORKSTATION))
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g_string_append (version, " Server");
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/* Windows 10 is identified by its release number, such as
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* 1511, 1607, 1703, 1709, 1803, 1809 or 1903.
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* The first version of Windows 10 has no release number.
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*/
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win10_release = get_registry_str (HKEY_LOCAL_MACHINE,
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L"SOFTWARE"
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L"\\Microsoft"
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L"\\Windows NT"
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L"\\CurrentVersion",
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L"ReleaseId");
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if (win10_release != NULL)
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g_string_append_printf (version, " %s", win10_release);
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g_free (win10_release);
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}
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else if (g_win32_check_windows_version (6, 3, 0, G_WIN32_OS_ANY))
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{
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gchar *win81_update;
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g_string_append (version, "8.1");
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if (!g_win32_check_windows_version (6, 3, 0, G_WIN32_OS_WORKSTATION))
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g_string_append (version, " Server");
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win81_update = get_windows_8_1_update ();
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if (win81_update != NULL)
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g_string_append_printf (version, " %s", win81_update);
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g_free (win81_update);
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}
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else
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{
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gint i;
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for (i = 0; versions[i].major > 0; i++)
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{
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if (!g_win32_check_windows_version (versions[i].major, versions[i].minor, versions[i].sp, G_WIN32_OS_ANY))
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continue;
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g_string_append (version, versions[i].version);
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if (!g_win32_check_windows_version (versions[i].major, versions[i].minor, versions[i].sp, G_WIN32_OS_WORKSTATION))
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g_string_append (version, " Server");
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g_string_append (version, versions[i].spversion);
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}
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}
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if (version->len == 0)
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{
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g_string_free (version, TRUE);
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return NULL;
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}
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if (with_windows)
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g_string_prepend (version, "Windows ");
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return g_string_free (version, FALSE);
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}
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#endif
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/**
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* g_get_os_info:
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* @key_name: a key for the OS info being requested, for example %G_OS_INFO_KEY_NAME.
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@ -1236,7 +1432,39 @@ g_get_os_info (const gchar *key_name)
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return g_steal_pointer (&result);
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#elif defined (G_OS_WIN32)
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if (g_strcmp0 (key_name, G_OS_INFO_KEY_NAME) == 0)
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return g_strdup (_("Windows"));
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return g_strdup ("Windows");
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else if (g_strcmp0 (key_name, G_OS_INFO_KEY_ID) == 0)
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return g_strdup ("windows");
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else if (g_strcmp0 (key_name, G_OS_INFO_KEY_PRETTY_NAME) == 0)
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/* Windows XP SP2 or Windows 10 1903 or Windows 7 Server SP1 */
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return get_windows_version (TRUE);
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else if (g_strcmp0 (key_name, G_OS_INFO_KEY_VERSION) == 0)
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/* XP SP2 or 10 1903 or 7 Server SP1 */
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return get_windows_version (FALSE);
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else if (g_strcmp0 (key_name, G_OS_INFO_KEY_VERSION_ID) == 0)
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{
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/* xp_sp2 or 10_1903 or 7_server_sp1 */
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gchar *result;
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gchar *version = get_windows_version (FALSE);
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if (version == NULL)
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return NULL;
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result = g_ascii_strdown (version, -1);
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g_free (version);
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return g_strcanon (result, "abcdefghijklmnopqrstuvwxyz0123456789_-.", '_');
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}
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else if (g_strcmp0 (key_name, G_OS_INFO_KEY_HOME_URL) == 0)
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return g_strdup ("https://microsoft.com/windows/");
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else if (g_strcmp0 (key_name, G_OS_INFO_KEY_DOCUMENTATION_URL) == 0)
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return g_strdup ("https://docs.microsoft.com/");
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else if (g_strcmp0 (key_name, G_OS_INFO_KEY_SUPPORT_URL) == 0)
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return g_strdup ("https://support.microsoft.com/");
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else if (g_strcmp0 (key_name, G_OS_INFO_KEY_BUG_REPORT_URL) == 0)
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return g_strdup ("https://support.microsoft.com/contactus/");
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else if (g_strcmp0 (key_name, G_OS_INFO_KEY_PRIVACY_POLICY_URL) == 0)
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return g_strdup ("https://privacy.microsoft.com/");
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else
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return NULL;
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#endif
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