1 files changed, 43 insertions, 0 deletions
diff --git a/src/core/lib/gpr/host_port.h b/src/core/lib/gpr/host_port.h
new file mode 100644
index 0000000000..0bf0960f82
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+++ b/src/core/lib/gpr/host_port.h
@@ -0,0 +1,43 @@
+/*
+ *
+ * Copyright 2015 gRPC authors.
+ *
+ * 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
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#ifndef GRPC_CORE_LIB_GPR_HOST_PORT_H
+#define GRPC_CORE_LIB_GPR_HOST_PORT_H
+
+#include <grpc/support/port_platform.h>
+
+/** Given a host and port, creates a newly-allocated string of the form
+   "host:port" or "[ho:st]:port", depending on whether the host contains colons
+   like an IPv6 literal.  If the host is already bracketed, then additional
+   brackets will not be added.
+
+   Usage is similar to gpr_asprintf: returns the number of bytes written
+   (excluding the final '\0'), and *out points to a string which must later be
+   destroyed using gpr_free().
+
+   In the unlikely event of an error, returns -1 and sets *out to NULL. */
+int gpr_join_host_port(char** out, const char* host, int port);
+
+/** Given a name in the form "host:port" or "[ho:st]:port", split into hostname
+   and port number, into newly allocated strings, which must later be
+   destroyed using gpr_free().
+   Return 1 on success, 0 on failure. Guarantees *host and *port == NULL on
+   failure. */
+int gpr_split_host_port(const char* name, char** host, char** port);
+
+#endif /* GRPC_CORE_LIB_GPR_HOST_PORT_H */