# Add ability to connect to UNIX socket and make it the default.

# Patch suitable for upstream use.

# This change was implemented in-house.

#

--- src/tspi/rpc/tcstp/rpc.c	2014-04-24 11:05:44.000000000 -0700

+++ src/tspi/rpc/tcstp/rpc.c	2016-04-22 15:08:53.058153900 -0700

@@ -477,6 +477,37 @@

 		goto exit;

 	}

+	if ((port_str == NULL) || (strlen(port_str) == 0) ||

+	    (strcmp(port_str, "0") == 0)) { /* use UNIX socket (default) */

+		struct sockaddr_un sock_addr;

+

+		*sd = socket(PF_UNIX, SOCK_STREAM, 0);

+		if (*sd == -1) {

+			LogError("socket(PF_UNIX): %s", strerror(errno));

+			result = TSPERR(TSS_E_COMM_FAILURE);

+			return (result);

+		}

+

+		memset(&sock_addr, 0, sizeof(sock_addr));

+		sock_addr.sun_family = AF_UNIX;

+		strncpy(sock_addr.sun_path, TCSD_DEFAULT_SOCKET,

+		    sizeof(sock_addr.sun_path));

+

+		LogDebug("Connecting to UNIX Domain socket %s",

+		    TCSD_DEFAULT_SOCKET);

+

+		if (connect(*sd, (struct sockaddr *) &sock_addr,

+		    sizeof (sock_addr))) {

+			LogError("connect: %s", strerror(errno));

+			result = TSPERR(TSS_E_COMM_FAILURE);

+			return (result);

+		}

+

+		return (TSS_SUCCESS);

+	} 

+

+	/* Use TCP/IP socket */

+

 	LogDebug("Retrieving address information from host: %s", (char *)hte->hostname);

 	rv = getaddrinfo((char *)hte->hostname, port_str,

 			&hints, &res);