s4:lib/socket: add socket_address_copy()

metze

2 files changed, 35 insertions, 0 deletions

diff --git a/source4/lib/socket/socket.c b/source4/lib/socket/socket.c
index 9d30e0a77ef..8e2f1683f22 100644
--- a/source4/lib/socket/socket.c
+++ b/source4/lib/socket/socket.c
@@ -426,6 +426,39 @@ _PUBLIC_ struct socket_address *socket_address_from_sockaddr(TALLOC_CTX *mem_ctx
 	return addr;
 }
 
+/* Copy a socket_address structure */
+struct socket_address *socket_address_copy(TALLOC_CTX *mem_ctx,
+					   const struct socket_address *oaddr)
+{
+	struct socket_address *addr = talloc_zero(mem_ctx, struct socket_address);
+	if (!addr) {
+		return NULL;
+	}
+	addr->family	= oaddr->family;
+	if (oaddr->addr) {
+		addr->addr	= talloc_strdup(addr, oaddr->addr);
+		if (!addr->addr) {
+			goto nomem;
+		}
+	}
+	addr->port	= oaddr->port;
+	if (oaddr->sockaddr) {
+		addr->sockaddr = (struct sockaddr *)talloc_memdup(addr,
+								  oaddr->sockaddr,
+								  oaddr->sockaddrlen);
+		if (!addr->sockaddr) {
+			goto nomem;
+		}
+		addr->sockaddrlen = oaddr->sockaddrlen;
+	}
+
+	return addr;
+
+nomem:
+	talloc_free(addr);
+	return NULL;
+}
+
 _PUBLIC_ const struct socket_ops *socket_getops_byname(const char *family, enum socket_type type)
 {
 	extern const struct socket_ops *socket_ipv4_ops(enum socket_type);
diff --git a/source4/lib/socket/socket.h b/source4/lib/socket/socket.h
index e9338127c4b..0f469e5ceb9 100644
--- a/source4/lib/socket/socket.h
+++ b/source4/lib/socket/socket.h
@@ -167,6 +167,8 @@ struct socket_address *socket_address_from_strings(TALLOC_CTX *mem_ctx,
 struct socket_address *socket_address_from_sockaddr(TALLOC_CTX *mem_ctx, 
 						    struct sockaddr *sockaddr, 
 						    size_t addrlen);
+struct socket_address *socket_address_copy(TALLOC_CTX *mem_ctx,
+					   const struct socket_address *oaddr);
 const struct socket_ops *socket_getops_byname(const char *name, enum socket_type type);
 bool allow_access(TALLOC_CTX *mem_ctx,
 		  const char **deny_list, const char **allow_list,