Returns an error immediately without sending IPC message when a font family n...

skia/ext/SkFontHost_fontconfig_direct.cpp

 /* libs/graphics/ports/SkFontHost_fontconfig_direct.cpp
 **
 ** Copyright 2009, Google Inc.
 **
 ** Licensed under the Apache License, Version 2.0 (the "License");
 ** you may not use this file except in compliance with the License.
 ** You may obtain a copy of the License at
 **
 **     http://www.apache.org/licenses/LICENSE-2.0
 **
@@ skipping 28 matching lines @@
     return strcasecmp(family_cstr, "sans") == 0 ||
            strcasecmp(family_cstr, "serif") == 0 ||
            strcasecmp(family_cstr, "monospace") == 0;
 }
 
 bool FontConfigDirect::Match(std::string* result_family,
                              unsigned* result_fileid,
                              bool fileid_valid, unsigned fileid,
                              const std::string& family, bool* is_bold,
                              bool* is_italic) {
+    if (family.length() > kMaxFontFamilyLength)
+        return false;
+
     SkAutoMutexAcquire ac(mutex_);
     FcPattern* pattern = FcPatternCreate();
 
     FcValue fcvalue;
     if (fileid_valid) {
         const std::map<unsigned, std::string>::const_iterator
             i = fileid_to_filename_.find(fileid);
         if (i == fileid_to_filename_.end()) {
             FcPatternDestroy(pattern);
             return false;
@@ skipping 191 matching lines @@
 
 int FontConfigDirect::Open(unsigned fileid) {
     SkAutoMutexAcquire ac(mutex_);
     const std::map<unsigned, std::string>::const_iterator
         i = fileid_to_filename_.find(fileid);
     if (i == fileid_to_filename_.end())
         return -1;
 
     return open(i->second.c_str(), O_RDONLY);
 }