Merge pull request #62 from NesoK/_extract_record-patch

GeoIP_record_by_addr leads to a core dump on an empty database for 127.0.0.1
maxmind · Jul 13, 2015 · 36a5b8a · 36a5b8a
2 parents a80a149 + 032ab8d
commit 36a5b8a
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/libGeoIP/GeoIPCity.c b/libGeoIP/GeoIPCity.c
@@ -96,6 +96,10 @@ _extract_record(GeoIP * gi, unsigned int seek_record, int *next_record_ptr)
             return NULL;
         }
     }else {
+        if (gi->size <= record_pointer) {
+            /* such record does not exists in the cache */
+            return NULL;
+        }
         record_buf = gi->cache + (long)record_pointer;
     }