programs/wmic/main.c

   1 /*
   2  * Copyright 2010 Louis Lenders
   3  * Copyright 2012 Hans Leidekker for CodeWeavers
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2.1 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  18  */
  19
  20 #define COBJMACROS
  21
  22 #include <stdio.h>
  23 #include "windows.h"
  24 #include "ocidl.h"
  25 #include "initguid.h"
  26 #include "objidl.h"
  27 #include "wbemcli.h"
  28 #include "wmic.h"
  29
  30 #include "wine/debug.h"
  31 #include "wine/unicode.h"
  32
  33 WINE_DEFAULT_DEBUG_CHANNEL(wmic);
  34
  35 static const WCHAR biosW[] =
  36     {'b','i','o','s',0};
  37 static const WCHAR computersystemW[] =
  38     {'c','o','m','p','u','t','e','r','s','y','s','t','e','m',0};
  39 static const WCHAR cpuW[] =
  40     {'c','p','u',0};
  41 static const WCHAR logicaldiskW[] =
  42     {'L','o','g','i','c','a','l','D','i','s','k',0};
  43 static const WCHAR nicW[] =
  44     {'n','i','c',0};
  45 static const WCHAR osW[] =
  46     {'o','s',0};
  47 static const WCHAR processW[] =
  48     {'p','r','o','c','e','s','s',0};
  49
  50 static const WCHAR win32_biosW[] =
  51     {'W','i','n','3','2','_','B','I','O','S',0};
  52 static const WCHAR win32_computersystemW[] =
  53     {'W','i','n','3','2','_','C','o','m','p','u','t','e','r','S','y','s','t','e','m',0};
  54 static const WCHAR win32_logicaldiskW[] =
  55     {'W','i','n','3','2','_','L','o','g','i','c','a','l','D','i','s','k',0};
  56 static const WCHAR win32_networkadapterW[] =
  57     {'W','i','n','3','2','_','N','e','t','w','o','r','k','A','d','a','p','t','e','r',0};
  58 static const WCHAR win32_operatingsystemW[] =
  59     {'W','i','n','3','2','_','O','p','e','r','a','t','i','n','g','S','y','s','t','e','m',0};
  60 static const WCHAR win32_processW[] =
  61     {'W','i','n','3','2','_','P','r','o','c','e','s','s',0};
  62 static const WCHAR win32_processorW[] =
  63     {'W','i','n','3','2','_','P','r','o','c','e','s','s','o','r',0};
  64
  65 static const struct
  66 {
  67     const WCHAR *alias;
  68     const WCHAR *class;
  69 }
  70 alias_map[] =
  71 {
  72     { biosW, win32_biosW },
  73     { computersystemW, win32_computersystemW },
  74     { cpuW, win32_processorW },
  75     { logicaldiskW, win32_logicaldiskW },
  76     { nicW, win32_networkadapterW },
  77     { osW, win32_operatingsystemW },
  78     { processW, win32_processW }
  79 };
  80
  81 static const WCHAR *find_class( const WCHAR *alias )
  82 {
  83     unsigned int i;
  84
  85     for (i = 0; i < ARRAY_SIZE(alias_map); i++)
  86     {
  87         if (!strcmpiW( alias, alias_map[i].alias )) return alias_map[i].class;
  88     }
  89     return NULL;
  90 }
  91
  92 static inline WCHAR *strdupW( const WCHAR *src )
  93 {
  94     WCHAR *dst;
  95     if (!src) return NULL;
  96     if (!(dst = HeapAlloc( GetProcessHeap(), 0, (strlenW( src ) + 1) * sizeof(WCHAR) ))) return NULL;
  97     strcpyW( dst, src );
  98     return dst;
  99 }
 100
 101 static WCHAR *find_prop( IWbemClassObject *class, const WCHAR *prop )
 102 {
 103     SAFEARRAY *sa;
 104     WCHAR *ret = NULL;
 105     LONG i, last_index = 0;
 106     BSTR str;
 107
 108     if (IWbemClassObject_GetNames( class, NULL, WBEM_FLAG_ALWAYS, NULL, &sa ) != S_OK) return NULL;
 109
 110     SafeArrayGetUBound( sa, 1, &last_index );
 111     for (i = 0; i <= last_index; i++)
 112     {
 113         SafeArrayGetElement( sa, &i, &str );
 114         if (!strcmpiW( str, prop ))
 115         {
 116             ret = strdupW( str );
 117             break;
 118         }
 119     }
 120     SafeArrayDestroy( sa );
 121     return ret;
 122 }
 123
 124 static int output_string( HANDLE handle, const WCHAR *msg, ... )
 125 {
 126     va_list va_args;
 127     int len;
 128     DWORD count;
 129     WCHAR buffer[8192];
 130
 131     va_start( va_args, msg );
 132     len = vsnprintfW( buffer, ARRAY_SIZE(buffer), msg, va_args );
 133     va_end( va_args );
 134
 135     if (!WriteConsoleW( handle, buffer, len, &count, NULL ))
 136         WriteFile( handle, buffer, len * sizeof(WCHAR), &count, FALSE );
 137
 138     return count;
 139 }
 140
 141 static int output_error( int msg )
 142 {
 143     static const WCHAR fmtW[] = {'%','s',0};
 144     WCHAR buffer[8192];
 145
 146     LoadStringW( GetModuleHandleW(NULL), msg, buffer, ARRAY_SIZE(buffer));
 147     return output_string( GetStdHandle(STD_ERROR_HANDLE), fmtW, buffer );
 148 }
 149
 150 static int output_header( const WCHAR *prop, ULONG column_width )
 151 {
 152     static const WCHAR bomW[] = {0xfeff}, fmtW[] = {'%','-','*','s','\r','\n',0};
 153     int len;
 154     DWORD count;
 155     WCHAR buffer[8192];
 156
 157     len = snprintfW( buffer, ARRAY_SIZE(buffer), fmtW, column_width, prop );
 158
 159     if (!WriteConsoleW( GetStdHandle(STD_OUTPUT_HANDLE), buffer, len, &count, NULL )) /* redirected */
 160     {
 161         WriteFile( GetStdHandle(STD_OUTPUT_HANDLE), bomW, sizeof(bomW), &count, FALSE );
 162         WriteFile( GetStdHandle(STD_OUTPUT_HANDLE), buffer, len * sizeof(WCHAR), &count, FALSE );
 163         count += sizeof(bomW);
 164     }
 165
 166     return count;
 167 }
 168
 169 static int output_line( const WCHAR *str, ULONG column_width )
 170 {
 171     static const WCHAR fmtW[] = {'%','-','*','s','\r','\n',0};
 172     return output_string( GetStdHandle(STD_OUTPUT_HANDLE), fmtW, column_width, str );
 173 }
 174
 175 static int query_prop( const WCHAR *class, const WCHAR *propname )
 176 {
 177     static const WCHAR select_allW[] = {'S','E','L','E','C','T',' ','*',' ','F','R','O','M',' ',0};
 178     static const WCHAR cimv2W[] = {'R','O','O','T','\\','C','I','M','V','2',0};
 179     static const WCHAR wqlW[] = {'W','Q','L',0};
 180     HRESULT hr;
 181     IWbemLocator *locator = NULL;
 182     IWbemServices *services = NULL;
 183     IEnumWbemClassObject *result = NULL;
 184     LONG flags = WBEM_FLAG_RETURN_IMMEDIATELY | WBEM_FLAG_FORWARD_ONLY;
 185     BSTR path = NULL, wql = NULL, query = NULL;
 186     WCHAR *prop = NULL;
 187     BOOL first = TRUE;
 188     int len, ret = -1;
 189     IWbemClassObject *obj;
 190     ULONG count, width = 0;
 191     VARIANT v;
 192
 193     WINE_TRACE("%s, %s\n", debugstr_w(class), debugstr_w(propname));
 194
 195     CoInitialize( NULL );
 196     CoInitializeSecurity( NULL, -1, NULL, NULL, RPC_C_AUTHN_LEVEL_DEFAULT,
 197                           RPC_C_IMP_LEVEL_IMPERSONATE, NULL, EOAC_NONE, NULL );
 198
 199     hr = CoCreateInstance( &CLSID_WbemLocator, NULL, CLSCTX_INPROC_SERVER, &IID_IWbemLocator,
 200                            (void **)&locator );
 201     if (hr != S_OK) goto done;
 202
 203     if (!(path = SysAllocString( cimv2W ))) goto done;
 204     hr = IWbemLocator_ConnectServer( locator, path, NULL, NULL, NULL, 0, NULL, NULL, &services );
 205     if (hr != S_OK) goto done;
 206
 207     len = strlenW( class ) + ARRAY_SIZE(select_allW);
 208     if (!(query = SysAllocStringLen( NULL, len ))) goto done;
 209     strcpyW( query, select_allW );
 210     strcatW( query, class );
 211
 212     if (!(wql = SysAllocString( wqlW ))) goto done;
 213     hr = IWbemServices_ExecQuery( services, wql, query, flags, NULL, &result );
 214     if (hr != S_OK) goto done;
 215
 216     for (;;) /* get column width */
 217     {
 218         IEnumWbemClassObject_Next( result, WBEM_INFINITE, 1, &obj, &count );
 219         if (!count) break;
 220
 221         if (!prop && !(prop = find_prop( obj, propname )))
 222         {
 223             output_error( STRING_INVALID_QUERY );
 224             goto done;
 225         }
 226         if (IWbemClassObject_Get( obj, prop, 0, &v, NULL, NULL ) == WBEM_S_NO_ERROR)
 227         {
 228             VariantChangeType( &v, &v, 0, VT_BSTR );
 229             width = max( strlenW( V_BSTR( &v ) ), width );
 230             VariantClear( &v );
 231         }
 232         IWbemClassObject_Release( obj );
 233     }
 234     width += 2;
 235
 236     IEnumWbemClassObject_Reset( result );
 237     for (;;)
 238     {
 239         IEnumWbemClassObject_Next( result, WBEM_INFINITE, 1, &obj, &count );
 240         if (!count) break;
 241
 242         if (first)
 243         {
 244             output_header( prop, width );
 245             first = FALSE;
 246         }
 247         if (IWbemClassObject_Get( obj, prop, 0, &v, NULL, NULL ) == WBEM_S_NO_ERROR)
 248         {
 249             VariantChangeType( &v, &v, 0, VT_BSTR );
 250             output_line( V_BSTR( &v ), width );
 251             VariantClear( &v );
 252         }
 253         IWbemClassObject_Release( obj );
 254     }
 255     ret = 0;
 256
 257 done:
 258     if (result) IEnumWbemClassObject_Release( result );
 259     if (services) IWbemServices_Release( services );
 260     if (locator) IWbemLocator_Release( locator );
 261     SysFreeString( path );
 262     SysFreeString( query );
 263     SysFreeString( wql );
 264     HeapFree( GetProcessHeap(), 0, prop );
 265     CoUninitialize();
 266     return ret;
 267 }
 268
 269 int wmain(int argc, WCHAR *argv[])
 270 {
 271     static const WCHAR getW[] = {'g','e','t',0};
 272     static const WCHAR quitW[] = {'q','u','i','t',0};
 273     static const WCHAR exitW[] = {'e','x','i','t',0};
 274     static const WCHAR pathW[] = {'p','a','t','h',0};
 275     static const WCHAR classW[] = {'c','l','a','s','s',0};
 276     static const WCHAR contextW[] = {'c','o','n','t','e','x','t',0};
 277     const WCHAR *class, *value;
 278     int i;
 279
 280     for (i = 1; i < argc && argv[i][0] == '/'; i++)
 281         WINE_FIXME( "command line switch %s not supported\n", debugstr_w(argv[i]) );
 282
 283     if (i >= argc)
 284         goto not_supported;
 285
 286     if (!strcmpiW( argv[i], quitW ) ||
 287         !strcmpiW( argv[i], exitW ))
 288     {
 289         return 0;
 290     }
 291
 292     if (!strcmpiW( argv[i], classW) ||
 293         !strcmpiW( argv[i], contextW ))
 294     {
 295         WINE_FIXME( "command %s not supported\n", debugstr_w(argv[i]) );
 296         goto not_supported;
 297     }
 298
 299     if (!strcmpiW( argv[i], pathW ))
 300     {
 301         if (++i >= argc)
 302         {
 303             output_error( STRING_INVALID_PATH );
 304             return 1;
 305         }
 306         class = argv[i];
 307     }
 308     else
 309     {
 310         class = find_class( argv[i] );
 311         if (!class)
 312         {
 313             output_error( STRING_ALIAS_NOT_FOUND );
 314             return 1;
 315         }
 316     }
 317
 318     if (++i >= argc)
 319         goto not_supported;
 320
 321     if (!strcmpiW( argv[i], getW ))
 322     {
 323         if (++i >= argc)
 324             goto not_supported;
 325         value = argv[i];
 326         return query_prop( class, value );
 327     }
 328
 329 not_supported:
 330     output_error( STRING_CMDLINE_NOT_SUPPORTED );
 331     return 1;
 332 }