Index: uspace/lib/socket/generic/socket_parse.c
===================================================================
--- uspace/lib/socket/generic/socket_parse.c	(revision b3631bc28ac6307c083b19e3b502538bf74cbae9)
+++ uspace/lib/socket/generic/socket_parse.c	(revision b3631bc28ac6307c083b19e3b502538bf74cbae9)
@@ -0,0 +1,122 @@
+/*
+ * Copyright (c) 2009 Lukas Mejdrech
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * - The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/** @addtogroup socket
+ * @{
+ */
+
+/** @file
+ * Command-line argument parsing functions related to networking.
+ */
+
+#include <socket_parse.h>
+#include <arg_parse.h>
+#include <errno.h>
+#include <str.h>
+#include <socket.h>
+
+/** Translate the character string to the address family number.
+ *
+ * @param[in]  name The address family name.
+ * @param[out] af   The corresponding address family number
+ *                  or EAFNOSUPPORTED.
+ *
+ * @return EOK on success.
+ * @return ENOTSUP on unsupported address family.
+ *
+ */
+int socket_parse_address_family(const char *name, int *af)
+{
+	if (str_lcmp(name, "AF_INET", 7) == 0) {
+		*af = AF_INET;
+		return EOK;
+	}
+	
+	if (str_lcmp(name, "AF_INET6", 8) == 0) {
+		*af = AF_INET6;
+		return EOK;
+	}
+	
+	*af = EAFNOSUPPORT;
+	return ENOTSUP;
+}
+
+/** Translate the character string to the protocol family number.
+ *
+ * @param[in]  name The protocol family name.
+ * @param[out] pf   The corresponding protocol family number
+ *                  or EPFNOSUPPORTED.
+ *
+ * @return EOK on success.
+ * @return ENOTSUP on unsupported protocol family.
+ *
+ */
+int socket_parse_protocol_family(const char *name, int *pf)
+{
+	if (str_lcmp(name, "PF_INET", 7) == 0) {
+		*pf = PF_INET;
+		return EOK;
+	}
+	
+	if (str_lcmp(name, "PF_INET6", 8) == 0) {
+		*pf = PF_INET6;
+		return EOK;
+	}
+	
+	*pf = EPFNOSUPPORT;
+	return ENOTSUP;
+}
+
+/** Translate the character string to the socket type number.
+ *
+ * @param[in]  name  The socket type name.
+ * @param[out] sockt The corresponding socket type number
+ *                   or ESOCKTNOSUPPORT.
+ *
+ * @return EOK on success.
+ * @return ENOTSUP on unsupported socket type.
+ *
+ */
+int socket_parse_socket_type(const char *name, int *sockt)
+{
+	if (str_lcmp(name, "SOCK_DGRAM", 11) == 0) {
+		*sockt = SOCK_DGRAM;
+		return EOK;
+	}
+	
+	if (str_lcmp(name, "SOCK_STREAM", 12) == 0) {
+		*sockt = SOCK_STREAM;
+		return EOK;
+	}
+	
+	*sockt = ESOCKTNOSUPPORT;
+	return ENOTSUP;
+}
+
+/** @}
+ */