Add export to query for blacklisted-ness.

chrome_elf/blacklist/blacklist.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome_elf/blacklist/blacklist.h"
 
 #include <assert.h>
 #include <string.h>
 
 #include <vector>
@@ skipping 207 matching lines @@
   int size = -1;
   while (blacklist::g_troublesome_dlls[++size] != NULL) {}
 
   return size;
 }
 
 bool IsBlacklistInitialized() {
   return g_blacklist_initialized;
 }
 
+int GetBlacklistIndex(const wchar_t* dll_name) {
+  for (int i = 0; i < kTroublesomeDllsMaxCount, g_troublesome_dlls[i]; ++i) {
+    if (_wcsicmp(dll_name, g_troublesome_dlls[i]) == 0)
+      return i;
+  }
+  return -1;
+}
+
 bool AddDllToBlacklist(const wchar_t* dll_name) {
   int blacklist_size = BlacklistSize();
   // We need to leave one space at the end for the null pointer.
   if (blacklist_size + 1 >= kTroublesomeDllsMaxCount)
     return false;
   for (int i = 0; i < blacklist_size; ++i) {
     if (!_wcsicmp(g_troublesome_dlls[i], dll_name))
       return true;
   }
 
@@ skipping 184 matching lines @@
       break;
     value_buffer[value_len - 1] = L'\0';
     AddDllToBlacklist(&value_buffer[0]);
   }
 
   ::RegCloseKey(key);
   return;
 }
 
 }  // namespace blacklist