Index: uspace/lib/c/include/inet/addr.h
===================================================================
--- uspace/lib/c/include/inet/addr.h	(revision 53e3950b8dbd2e01cd0a036711fe2760544ae3bf)
+++ uspace/lib/c/include/inet/addr.h	(revision 6a75c1348f4cecc4045deb137aaa5b67b4adf133)
@@ -111,6 +111,6 @@
 extern int inet_naddr_compare_mask(const inet_naddr_t *, const inet_addr_t *);
 
-extern int inet_addr_parse(const char *, inet_addr_t *);
-extern int inet_naddr_parse(const char *, inet_naddr_t *);
+extern int inet_addr_parse(const char *, inet_addr_t *, char **);
+extern int inet_naddr_parse(const char *, inet_naddr_t *, char **);
 
 extern int inet_addr_format(const inet_addr_t *, char **);
Index: uspace/lib/c/include/inet/dnsr.h
===================================================================
--- uspace/lib/c/include/inet/dnsr.h	(revision 53e3950b8dbd2e01cd0a036711fe2760544ae3bf)
+++ uspace/lib/c/include/inet/dnsr.h	(revision 6a75c1348f4cecc4045deb137aaa5b67b4adf133)
@@ -33,6 +33,6 @@
  */
 
-#ifndef LIBC_INET_DNSRES_H_
-#define LIBC_INET_DNSRES_H_
+#ifndef LIBC_INET_DNSR_H_
+#define LIBC_INET_DNSR_H_
 
 #include <inet/inet.h>
Index: uspace/lib/c/include/inet/endpoint.h
===================================================================
--- uspace/lib/c/include/inet/endpoint.h	(revision 53e3950b8dbd2e01cd0a036711fe2760544ae3bf)
+++ uspace/lib/c/include/inet/endpoint.h	(revision 6a75c1348f4cecc4045deb137aaa5b67b4adf133)
@@ -33,6 +33,6 @@
  */
 
-#ifndef LIBC_INET_ASSOC_H_
-#define LIBC_INET_ASSOC_H_
+#ifndef LIBC_INET_ENDPOINT_H_
+#define LIBC_INET_ENDPOINT_H_
 
 #include <stdint.h>
Index: uspace/lib/c/include/inet/host.h
===================================================================
--- uspace/lib/c/include/inet/host.h	(revision 6a75c1348f4cecc4045deb137aaa5b67b4adf133)
+++ uspace/lib/c/include/inet/host.h	(revision 6a75c1348f4cecc4045deb137aaa5b67b4adf133)
@@ -0,0 +1,52 @@
+/*
+ * Copyright (c) 2016 Jiri Svoboda
+ * 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 libc
+ * @{
+ */
+/** @file
+ */
+
+#ifndef LIBC_INET_HOST_H_
+#define LIBC_INET_HOST_H_
+
+#include <inet/addr.h>
+#include <inet/endpoint.h>
+#include <types/inet/hostport.h>
+
+extern int inet_host_parse(const char *, inet_host_t **, char **);
+extern int inet_host_format(inet_host_t *, char **);
+extern void inet_host_destroy(inet_host_t *);
+extern int inet_host_lookup_one(inet_host_t *, ip_ver_t, inet_addr_t *);
+extern int inet_host_plookup_one(const char *, ip_ver_t, inet_addr_t *,
+    char **, const char **);
+
+#endif
+
+/** @}
+ */
Index: uspace/lib/c/include/inet/hostname.h
===================================================================
--- uspace/lib/c/include/inet/hostname.h	(revision 6a75c1348f4cecc4045deb137aaa5b67b4adf133)
+++ uspace/lib/c/include/inet/hostname.h	(revision 6a75c1348f4cecc4045deb137aaa5b67b4adf133)
@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2016 Jiri Svoboda
+ * 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 libc
+ * @{
+ */
+/** @file
+ */
+
+#ifndef LIBC_INET_HOSTNAME_H_
+#define LIBC_INET_HOSTNAME_H_
+
+extern int inet_hostname_parse(const char *, char **, char **);
+
+#endif
+
+/** @}
+ */
Index: uspace/lib/c/include/inet/hostport.h
===================================================================
--- uspace/lib/c/include/inet/hostport.h	(revision 6a75c1348f4cecc4045deb137aaa5b67b4adf133)
+++ uspace/lib/c/include/inet/hostport.h	(revision 6a75c1348f4cecc4045deb137aaa5b67b4adf133)
@@ -0,0 +1,52 @@
+/*
+ * Copyright (c) 2016 Jiri Svoboda
+ * 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 libc
+ * @{
+ */
+/** @file
+ */
+
+#ifndef LIBC_INET_HOSTPORT_H_
+#define LIBC_INET_HOSTPORT_H_
+
+#include <inet/addr.h>
+#include <inet/endpoint.h>
+#include <types/inet/hostport.h>
+
+extern int inet_hostport_parse(const char *, inet_hostport_t **, char **);
+extern int inet_hostport_format(inet_hostport_t *, char **);
+extern void inet_hostport_destroy(inet_hostport_t *);
+extern int inet_hostport_lookup_one(inet_hostport_t *, ip_ver_t, inet_ep_t *);
+extern int inet_hostport_plookup_one(const char *, ip_ver_t, inet_ep_t *,
+    char **, const char **);
+
+#endif
+
+/** @}
+ */
Index: uspace/lib/c/include/types/inet/host.h
===================================================================
--- uspace/lib/c/include/types/inet/host.h	(revision 6a75c1348f4cecc4045deb137aaa5b67b4adf133)
+++ uspace/lib/c/include/types/inet/host.h	(revision 6a75c1348f4cecc4045deb137aaa5b67b4adf133)
@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) 2016 Jiri Svoboda
+ * 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 libc
+ * @{
+ */
+/** @file
+ */
+
+#ifndef LIBC_TYPES_INET_HOST_H_
+#define LIBC_TYPES_INET_HOST_H_
+
+#include <inet/addr.h>
+
+typedef enum {
+	/** Host name */
+	inet_host_name,
+	/** Host address */
+	inet_host_addr
+} inet_host_form_t;
+
+/** Internet host:port specification
+ *
+ * As in RFC 1738 Uniform Resouce Locators (URL) and RFC 2732 Format for
+ * literal IPv6 Addresses in URLs
+ */
+typedef struct {
+	/** Host form */
+	inet_host_form_t hform;
+
+	union {
+		/** Host name */
+		char *name;
+		/** Host address */
+		inet_addr_t addr;
+	} host;
+} inet_host_t;
+
+#endif
+
+/** @}
+ */
Index: uspace/lib/c/include/types/inet/hostport.h
===================================================================
--- uspace/lib/c/include/types/inet/hostport.h	(revision 6a75c1348f4cecc4045deb137aaa5b67b4adf133)
+++ uspace/lib/c/include/types/inet/hostport.h	(revision 6a75c1348f4cecc4045deb137aaa5b67b4adf133)
@@ -0,0 +1,65 @@
+/*
+ * Copyright (c) 2016 Jiri Svoboda
+ * 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 libc
+ * @{
+ */
+/** @file
+ */
+
+#ifndef LIBC_TYPES_INET_HOSTPORT_H_
+#define LIBC_TYPES_INET_HOSTPORT_H_
+
+#include <inet/addr.h>
+#include <stdint.h>
+#include <types/inet/host.h>
+
+/** Internet host:port specification
+ *
+ * As in RFC 1738 Uniform Resouce Locators (URL) and RFC 2732 Format for
+ * literal IPv6 Addresses in URLs
+ */
+typedef struct {
+	/** Host form */
+	inet_host_form_t hform;
+
+	union {
+		/** Host name */
+		char *name;
+		/** Host address */
+		inet_addr_t addr;
+	} host;
+
+	/** Port number of 0 if omitted */
+	uint16_t port;
+} inet_hostport_t;
+
+#endif
+
+/** @}
+ */
