hexchat/plugins/sysinfo/win32/backend.c

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/* HexChat
* Copyright (c) 2011-2012 Berke Viktor.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <stdio.h>
#include <windows.h>
#include <wbemidl.h>
#include <glib.h>
#include "../format.h"
/* Cache the info for subsequent invocations of /SYSINFO */
static int cpu_arch = 0;
static char *os_name = NULL;
static char *cpu_info = NULL;
static char *vga_name = NULL;
static int command_callback (char *word[], char *word_eol[], void *user_data);
typedef enum
{
QUERY_WMI_OS,
QUERY_WMI_CPU,
QUERY_WMI_VGA,
QUERY_WMI_HDD,
} QueryWmiType;
void print_info (void);
int get_cpu_arch (void);
char *query_wmi (QueryWmiType mode);
char *read_os_name (IWbemClassObject *object);
char *read_cpu_info (IWbemClassObject *object);
char *read_vga_name (IWbemClassObject *object);
guint64 hdd_capacity;
guint64 hdd_free_space;
char *read_hdd_info (IWbemClassObject *object);
char *get_memory_info (void);
char *bstr_to_utf8 (BSTR bstr);
guint64 variant_to_uint64 (VARIANT *variant);
char *
sysinfo_backend_get_sound (void)
{
return NULL;
}
char *
sysinfo_backend_get_network (void)
{
return NULL;
}
char *
sysinfo_backend_get_uptime (void)
{
return sysinfo_format_uptime (GetTickCount64 () / 1000);
}
char *
sysinfo_backend_get_disk (void)
{
char *hdd_info;
/* HDD information is always loaded dynamically since it includes the current amount of free space */
hdd_capacity = 0;
hdd_free_space = 0;
hdd_info = query_wmi (QUERY_WMI_HDD);
if (hdd_info)
return sysinfo_format_disk (hdd_capacity, hdd_free_space);
return NULL;
}
char *
sysinfo_backend_get_cpu (void)
{
if (cpu_info == NULL)
cpu_info = query_wmi (QUERY_WMI_CPU);
return g_strdup (cpu_info);
}
char *
sysinfo_backend_get_memory (void)
{
/* Memory information is always loaded dynamically since it includes the current amount of free memory */
return get_memory_info ();
}
char *
sysinfo_backend_get_gpu (void)
{
if (vga_name == NULL)
vga_name = query_wmi (QUERY_WMI_VGA);
return g_strdup (vga_name);
}
char *
sysinfo_backend_get_os (void)
{
if (os_name == NULL)
os_name = query_wmi (QUERY_WMI_OS);
if (cpu_arch == 0)
cpu_arch = get_cpu_arch ();
return g_strdup_printf ("%s (x%d)", os_name, cpu_arch);
}
static int get_cpu_arch (void)
{
SYSTEM_INFO si;
GetNativeSystemInfo (&si);
if (si.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_AMD64)
{
return 64;
}
else
{
return 86;
}
}
/* http://msdn.microsoft.com/en-us/site/aa390423 */
static char *query_wmi (QueryWmiType type)
{
GString *result = NULL;
HRESULT hr;
IWbemLocator *locator = NULL;
BSTR namespaceName = NULL;
BSTR queryLanguageName = NULL;
BSTR query = NULL;
IWbemServices *namespace = NULL;
IUnknown *namespaceUnknown = NULL;
IEnumWbemClassObject *enumerator = NULL;
int i;
gboolean atleast_one_appended = FALSE;
hr = CoCreateInstance (&CLSID_WbemLocator, 0, CLSCTX_INPROC_SERVER, &IID_IWbemLocator, (LPVOID *) &locator);
if (FAILED (hr))
{
goto exit;
}
namespaceName = SysAllocString (L"root\\CIMV2");
hr = locator->lpVtbl->ConnectServer (locator, namespaceName, NULL, NULL, NULL, 0, NULL, NULL, &namespace);
if (FAILED (hr))
{
goto release_locator;
}
hr = namespace->lpVtbl->QueryInterface (namespace, &IID_IUnknown, &namespaceUnknown);
if (FAILED (hr))
{
goto release_namespace;
}
hr = CoSetProxyBlanket (namespaceUnknown, RPC_C_AUTHN_WINNT, RPC_C_AUTHZ_NONE, NULL, RPC_C_AUTHN_LEVEL_CALL, RPC_C_IMP_LEVEL_IMPERSONATE, NULL, EOAC_NONE);
if (FAILED (hr))
{
goto release_namespaceUnknown;
}
queryLanguageName = SysAllocString (L"WQL");
switch (type)
{
case QUERY_WMI_OS:
query = SysAllocString (L"SELECT Caption FROM Win32_OperatingSystem");
break;
case QUERY_WMI_CPU:
query = SysAllocString (L"SELECT Name, MaxClockSpeed FROM Win32_Processor");
break;
case QUERY_WMI_VGA:
query = SysAllocString (L"SELECT Name FROM Win32_VideoController");
break;
case QUERY_WMI_HDD:
query = SysAllocString (L"SELECT Name, Capacity, FreeSpace FROM Win32_Volume");
break;
default:
goto release_queryLanguageName;
}
hr = namespace->lpVtbl->ExecQuery (namespace, queryLanguageName, query, WBEM_FLAG_FORWARD_ONLY, NULL, &enumerator);
if (FAILED (hr))
{
goto release_query;
}
result = g_string_new ("");
for (i = 0;; i++)
{
ULONG numReturned = 0;
IWbemClassObject *object;
char *line;
hr = enumerator->lpVtbl->Next (enumerator, WBEM_INFINITE, 1, &object, &numReturned);
if (FAILED (hr) || numReturned == 0)
{
break;
}
switch (type)
{
case QUERY_WMI_OS:
line = read_os_name (object);
break;
case QUERY_WMI_CPU:
line = read_cpu_info (object);
break;
case QUERY_WMI_VGA:
line = read_vga_name (object);
break;
case QUERY_WMI_HDD:
line = read_hdd_info (object);
break;
default:
break;
}
object->lpVtbl->Release (object);
if (line != NULL)
{
if (atleast_one_appended)
{
g_string_append (result, ", ");
}
g_string_append (result, line);
g_free (line);
atleast_one_appended = TRUE;
}
}
enumerator->lpVtbl->Release (enumerator);
release_query:
SysFreeString (query);
release_queryLanguageName:
SysFreeString (queryLanguageName);
release_namespaceUnknown:
namespaceUnknown->lpVtbl->Release (namespaceUnknown);
release_namespace:
namespace->lpVtbl->Release (namespace);
release_locator:
locator->lpVtbl->Release (locator);
SysFreeString (namespaceName);
exit:
if (result == NULL)
{
return NULL;
}
return g_string_free (result, FALSE);
}
static char *read_os_name (IWbemClassObject *object)
{
HRESULT hr;
VARIANT caption_variant;
char *caption_utf8;
hr = object->lpVtbl->Get (object, L"Caption", 0, &caption_variant, NULL, NULL);
if (FAILED (hr))
{
return NULL;
}
caption_utf8 = bstr_to_utf8 (caption_variant.bstrVal);
VariantClear(&caption_variant);
if (caption_utf8 == NULL)
{
return NULL;
}
g_strchomp (caption_utf8);
return caption_utf8;
}
static char *read_cpu_info (IWbemClassObject *object)
{
HRESULT hr;
VARIANT name_variant;
char *name_utf8;
VARIANT max_clock_speed_variant;
guint cpu_freq_mhz;
char *result;
hr = object->lpVtbl->Get (object, L"Name", 0, &name_variant, NULL, NULL);
if (FAILED (hr))
{
return NULL;
}
name_utf8 = bstr_to_utf8 (name_variant.bstrVal);
VariantClear (&name_variant);
if (name_utf8 == NULL)
{
return NULL;
}
hr = object->lpVtbl->Get (object, L"MaxClockSpeed", 0, &max_clock_speed_variant, NULL, NULL);
if (FAILED (hr))
{
g_free (name_utf8);
return NULL;
}
cpu_freq_mhz = max_clock_speed_variant.uintVal;
VariantClear (&max_clock_speed_variant);
if (cpu_freq_mhz > 1000)
{
result = g_strdup_printf ("%s (%.2fGHz)", name_utf8, cpu_freq_mhz / 1000.f);
}
else
{
result = g_strdup_printf ("%s (%" G_GUINT32_FORMAT "MHz)", name_utf8, cpu_freq_mhz);
}
g_free (name_utf8);
return result;
}
static char *read_vga_name (IWbemClassObject *object)
{
HRESULT hr;
VARIANT name_variant;
char *name_utf8;
hr = object->lpVtbl->Get (object, L"Name", 0, &name_variant, NULL, NULL);
if (FAILED (hr))
{
return NULL;
}
name_utf8 = bstr_to_utf8 (name_variant.bstrVal);
VariantClear (&name_variant);
if (name_utf8 == NULL)
{
return NULL;
}
return g_strchomp (name_utf8);
}
static char *read_hdd_info (IWbemClassObject *object)
{
HRESULT hr;
VARIANT name_variant;
BSTR name_bstr;
gsize name_len;
VARIANT capacity_variant;
guint64 capacity;
VARIANT free_space_variant;
guint64 free_space;
hr = object->lpVtbl->Get (object, L"Name", 0, &name_variant, NULL, NULL);
if (FAILED (hr))
{
return NULL;
}
name_bstr = name_variant.bstrVal;
name_len = SysStringLen (name_variant.bstrVal);
if (name_len >= 4 && name_bstr[0] == L'\\' && name_bstr[1] == L'\\' && name_bstr[2] == L'?' && name_bstr[3] == L'\\')
{
// This is not a named volume. Skip it.
VariantClear (&name_variant);
return NULL;
}
VariantClear (&name_variant);
hr = object->lpVtbl->Get (object, L"Capacity", 0, &capacity_variant, NULL, NULL);
if (FAILED (hr))
{
return NULL;
}
capacity = variant_to_uint64 (&capacity_variant);
VariantClear (&capacity_variant);
if (capacity == 0)
{
return NULL;
}
hr = object->lpVtbl->Get (object, L"FreeSpace", 0, &free_space_variant, NULL, NULL);
if (FAILED (hr))
{
return NULL;
}
free_space = variant_to_uint64 (&free_space_variant);
VariantClear (&free_space_variant);
if (free_space == 0)
{
return NULL;
}
hdd_capacity += capacity;
hdd_free_space += free_space;
return NULL;
}
static char *get_memory_info (void)
{
MEMORYSTATUSEX meminfo = { 0 };
meminfo.dwLength = sizeof (meminfo);
if (!GlobalMemoryStatusEx (&meminfo))
{
return NULL;
}
return sysinfo_format_memory (meminfo.ullTotalPhys, meminfo.ullAvailPhys);
}
static char *bstr_to_utf8 (BSTR bstr)
{
return g_utf16_to_utf8 (bstr, SysStringLen (bstr), NULL, NULL, NULL);
}
static guint64 variant_to_uint64 (VARIANT *variant)
{
switch (V_VT (variant))
{
case VT_UI8:
return variant->ullVal;
case VT_BSTR:
return wcstoull (variant->bstrVal, NULL, 10);
default:
return 0;
}
}