setupapi: Fix for SetupGetIntField, with tests.

dlls/setupapi/parser.c

@@ -1711,21 +1711,26 @@ BOOL WINAPI SetupGetIntField( PINFCONTEXT context, DWORD index, PINT result )
     char *end, *buffer = localbuff;
     DWORD required;
     INT res;
-    BOOL ret = FALSE;
+    BOOL ret;
 
-    if (!SetupGetStringFieldA( context, index, localbuff, sizeof(localbuff), &required ))
+    if (!(ret = SetupGetStringFieldA( context, index, localbuff, sizeof(localbuff), &required )))
     {
         if (GetLastError() != ERROR_INSUFFICIENT_BUFFER) return FALSE;
         if (!(buffer = HeapAlloc( GetProcessHeap(), 0, required ))) return FALSE;
-        if (!SetupGetStringFieldA( context, index, buffer, required, NULL )) goto done;
+        if (!(ret = SetupGetStringFieldA( context, index, buffer, required, NULL ))) goto done;
     }
+    /* The call to SetupGetStringFieldA succeeded. If buffer is empty we have an optional field */
+    if (!*buffer) *result = 0;
+    else
+    {
         res = strtol( buffer, &end, 0 );
-    if (end != buffer && !*end)
+        if (end != buffer && !*end) *result = res;
+        else
         {
-        *result = res;
-        ret = TRUE;
+            SetLastError( ERROR_INVALID_DATA );
+            ret = FALSE;
+        }
     }
-    else SetLastError( ERROR_INVALID_DATA );
 
  done:
     if (buffer != localbuff) HeapFree( GetProcessHeap(), 0, buffer );

dlls/setupapi/tests/parser.c

@@ -475,6 +475,67 @@ static void test_pSetupGetField(void)
     SetupCloseInfFile( hinf );
 }
 
+static void test_SetupGetIntField(void)
+{
+    static const struct
+    {
+        const char *key;
+        const char *fields;
+        DWORD index;
+        INT value;
+        DWORD err;
+    } keys[] =
+    {
+    /* key     fields            index   expected int  errorcode */
+    {  "Key=", "48",             1,      48,           ERROR_SUCCESS },
+    {  "Key=", "48",             0,      -1,           ERROR_INVALID_DATA },
+    {  "123=", "48",             0,      123,          ERROR_SUCCESS },
+    {  "Key=", "0x4",            1,      4,            ERROR_SUCCESS },
+    {  "Key=", "Field1",         1,      -1,           ERROR_INVALID_DATA },
+    {  "Key=", "Field1,34",      2,      34,           ERROR_SUCCESS },
+    {  "Key=", "Field1,,Field3", 2,      0,            ERROR_SUCCESS },
+    {  "Key=", "Field1,",        2,      0,            ERROR_SUCCESS }
+    };
+    unsigned int i;
+
+    for (i = 0; i < sizeof(keys)/sizeof(keys[0]); i++)
+    {
+        HINF hinf;
+        char buffer[MAX_INF_STRING_LENGTH];
+        INFCONTEXT context;
+        UINT err;
+        BOOL retb;
+        INT intfield;
+
+        strcpy( buffer, STD_HEADER "[TestSection]\n" );
+        strcat( buffer, keys[i].key );
+        strcat( buffer, keys[i].fields );
+        hinf = test_file_contents( buffer, &err);
+        ok( hinf != NULL, "Expected valid INF file\n" );
+
+        SetupFindFirstLineA( hinf, "TestSection", "Key", &context );
+        SetLastError( 0xdeadbeef );
+        intfield = -1;
+        retb = SetupGetIntField( &context, keys[i].index, &intfield );
+        if ( keys[i].err == ERROR_SUCCESS )
+        {
+            ok( retb, "Expected success\n" );
+            ok( GetLastError() == ERROR_SUCCESS ||
+                GetLastError() == 0xdeadbeef /* win9x, NT4 */,
+                "Expected ERROR_SUCCESS or 0xdeadbeef, got %u\n", GetLastError() );
+        }
+        else
+        {
+            ok( !retb, "Expected failure\n" );
+            ok( GetLastError() == keys[i].err,
+                "Expected %d, got %u\n", keys[i].err, GetLastError() );
+        }
+        ok( intfield == keys[i].value, "Expected %d, got %d\n", keys[i].value, intfield );
+
+        SetupCloseInfFile( hinf );
+    }
+}
+
 static void test_GLE(void)
 {
     static const char *inf =
@@ -597,6 +658,7 @@ START_TEST(parser)
     test_key_names();
     test_close_inf_file();
     test_pSetupGetField();
+    test_SetupGetIntField();
     test_GLE();
     DeleteFileA( tmpfilename );
 }