2 files changed, 11 insertions, 0 deletions
diff --git a/net/base/dns_util.cc b/net/base/dns_util.cc
index db5f606..87d1866 100644
--- a/net/base/dns_util.cc
+++ b/net/base/dns_util.cc
@@ -70,4 +70,12 @@ bool IsSTD3ASCIIValidCharacter(char c) {
   return true;
 }
 
+std::string TrimEndingDot(const std::string& host) {
+  std::string host_trimmed = host;
+  size_t len = host_trimmed.length();
+  if (len > 1 && host_trimmed[len - 1] == '.')
+    host_trimmed.erase(len - 1);
+  return host_trimmed;
+}
+
 }  // namespace net
diff --git a/net/base/dns_util.h b/net/base/dns_util.h
index 8eb98f2..f0d2051 100644
--- a/net/base/dns_util.h
+++ b/net/base/dns_util.h
@@ -20,6 +20,9 @@ bool DNSDomainFromDot(const std::string& dotted, std::string* out);
 // characters as given in RFC 3490, 4.1, 3(a)
 bool IsSTD3ASCIIValidCharacter(char c);
 
+// Returns the hostname by trimming the ending dot, if one exists.
+std::string TrimEndingDot(const std::string& host);
+
 }  // namespace net
 
 #endif  // NET_BASE_DNS_UTIL_H_