diff --git a/.gitignore b/.gitignore
index 9ed661cf..afacb181 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,7 @@
 *.o
 *.so
 *.so.*
+*.a
 *.obj
 *.lib
 *.dll*
diff --git a/makefile b/makefile
index 63d9985c..94d34e8c 100755
--- a/makefile
+++ b/makefile
@@ -10,11 +10,11 @@
 #   print	           print the build settings
 
 PLAT?= linux
-PLATS= macosx linux win32 win64 mingw freebsd solaris
+PLATS= macosx linux win32 win64 mingw freebsd solaris psp
 
 all: $(PLAT)
 
-$(PLATS) none install install-unix local clean:
+$(PLATS) none install install-unix install-static local clean:
 	$(MAKE) -C src $@
 
 print:
diff --git a/src/config.h b/src/config.h
new file mode 100644
index 00000000..147bc87d
--- /dev/null
+++ b/src/config.h
@@ -0,0 +1,13 @@
+/*
+ *  This file is needed to compile PSP stubs
+ */
+
+#define STDC_HEADERS
+#define HAVE_STRING_H
+#define HAVE_MEMORY_H
+#define HAVE_STDLIB_H
+//#define ENABLE_PTHREAD
+//#define ENABLE_NLS
+#define HAVE_MEMCPY
+
+#include "netdb-compat.h"
\ No newline at end of file
diff --git a/src/getaddrinfo.c b/src/getaddrinfo.c
new file mode 100644
index 00000000..b9ccf2ac
--- /dev/null
+++ b/src/getaddrinfo.c
@@ -0,0 +1,593 @@
+/*
+ * Copyright (c) 2001, 02  Motoyuki Kasahara
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ * 3. Neither the name of the project nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``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 PROJECT OR CONTRIBUTORS 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.
+ */
+
+/*
+ * This program provides getaddrinfo() and getnameinfo() described in
+ * RFC2133, 2553 and 3493.  These functions are mainly used for IPv6
+ * application to resolve hostname or address.
+ * 
+ * This program is designed to be working on traditional IPv4 systems
+ * which don't have those functions.  Therefore, this implementation
+ * supports IPv4 only.
+ *
+ * This program is useful for application which should support both IPv6
+ * and traditional IPv4 systems.  Use genuine getaddrinfo() and getnameinfo()
+ * provided by system if the system supports IPv6.  Otherwise, use this
+ * implementation.
+ * 
+ * This program is intended to be used in combination with GNU Autoconf.
+ * 
+ * This program also provides freeaddrinfo() and gai_strerror().
+ *
+ * To use this program in your application, insert the following lines to
+ * C source files after including `sys/types.h', `sys/socket.h' and
+ * `netdb.h'.  `getaddrinfo.h' defines `struct addrinfo' and AI_, NI_,
+ * EAI_ macros.
+ * 
+ *    #ifndef HAVE_GETADDRINFO
+ *    #include "getaddrinfo.h"
+ *    #endif
+ * 
+ * Restriction:
+ *   getaddrinfo() and getnameinfo() of this program are NOT thread
+ *   safe, unless the cpp macro ENABLE_PTHREAD is defined.
+ */
+
+/*
+ * Add the following code to your configure.ac (or configure.in).
+ *   AC_C_CONST
+ *   AC_HEADER_STDC
+ *   AC_CHECK_HEADERS(string.h memory.h stdlib.h)
+ *   AC_CHECK_FUNCS(memcpy)
+ *   AC_REPLACE_FUNCS(memset)
+ *   AC_TYPE_SOCKLEN_T
+ *   AC_TYPE_IN_PORT_T
+ *   AC_DECL_H_ERRNO
+ *
+ *   AC_CHECK_FUNCS(getaddrinfo getnameinfo)
+ *   if test "$ac_cv_func_getaddrinfo$ac_cv_func_getnameinfo" != yesyes ; then
+ *       LIBOBJS="$LIBOBJS getaddrinfo.$ac_objext"
+ *   fi
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <sys/types.h>
+#include <stdio.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <netdb.h>
+
+#if defined(STDC_HEADERS) || defined(HAVE_STRING_H)
+#include <string.h>
+#if !defined(STDC_HEADERS) && defined(HAVE_MEMORY_H)
+#include <memory.h>
+#endif /* not STDC_HEADERS and HAVE_MEMORY_H */
+#else /* not STDC_HEADERS and not HAVE_STRING_H */
+#include <strings.h>
+#endif /* not STDC_HEADERS and not HAVE_STRING_H */
+
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+
+#ifdef ENABLE_PTHREAD
+#include <pthread.h>
+#endif
+
+#ifdef ENABLE_NLS
+#include <libintl.h>
+#endif
+
+#ifndef HAVE_MEMCPY
+#define memcpy(d, s, n) bcopy((s), (d), (n))
+#ifdef __STDC__
+void *memchr(const void *, int, size_t);
+int memcmp(const void *, const void *, size_t);
+void *memmove(void *, const void *, size_t);
+void *memset(void *, int, size_t);
+#else /* not __STDC__ */
+char *memchr();
+int memcmp();
+char *memmove();
+char *memset();
+#endif /* not __STDC__ */
+#endif /* not HAVE_MEMCPY */
+
+#ifndef H_ERRNO_DECLARED
+extern int h_errno;
+#endif
+
+#include "getaddrinfo.h"
+
+#ifdef ENABLE_NLS
+#define _(string) gettext(string)
+#ifdef gettext_noop
+#define N_(string) gettext_noop(string)
+#else
+#define N_(string) (string)
+#endif
+#else
+#define gettext(string) (string)
+#define _(string) (string)
+#define N_(string) (string)
+#endif
+
+/*
+ * Error messages for gai_strerror().
+ */
+static char *eai_errlist[] = {
+    N_("Success"),
+
+    /* EAI_ADDRFAMILY */
+    N_("Address family for hostname not supported"),
+
+    /* EAI_AGAIN */
+    N_("Temporary failure in name resolution"),
+
+    /* EAI_BADFLAGS */
+    N_("Invalid value for ai_flags"),
+
+    /* EAI_FAIL */
+    N_("Non-recoverable failure in name resolution"),
+
+    /* EAI_FAMILY */
+    N_("ai_family not supported"),                      
+
+    /* EAI_MEMORY */
+    N_("Memory allocation failure"),
+
+    /* EAI_NONAME */
+    N_("hostname nor servname provided, or not known"),
+
+    /* EAI_OVERFLOW */
+    N_("An argument buffer overflowed"),
+
+    /* EAI_SERVICE */
+    N_("servname not supported for ai_socktype"),
+
+    /* EAI_SOCKTYPE */
+    N_("ai_socktype not supported"),
+
+    /* EAI_SYSTEM */
+    N_("System error returned in errno")
+};
+
+/*
+ * Default hints for getaddrinfo().
+ */
+static struct addrinfo default_hints = {
+    0, PF_UNSPEC, 0, 0, 0, NULL, NULL, NULL
+};
+
+/*
+ * Mutex.
+ */
+#ifdef ENABLE_PTHREAD
+static pthread_mutex_t gai_mutex = PTHREAD_MUTEX_INITIALIZER;
+#endif
+
+/*
+ * Declaration of static functions.
+ */
+#ifdef __STDC__
+static int is_integer(const char *);
+static int is_address(const char *);
+static int itoa_length(int);
+#else
+static int is_integer();
+static int is_address();
+static int itoa_length();
+#endif
+
+/*
+ * gai_strerror().
+ */
+const char *
+gai_strerror(ecode)
+    int ecode;
+{
+    if (ecode < 0 || ecode > EAI_SYSTEM)
+	return _("Unknown error");
+
+    return gettext(eai_errlist[ecode]);
+}
+
+/*
+ * freeaddrinfo().
+ */
+void
+freeaddrinfo(ai)
+    struct addrinfo *ai;
+{
+    struct addrinfo *next_ai;
+
+    while (ai != NULL) {
+	if (ai->ai_canonname != NULL)
+	    free(ai->ai_canonname);
+	if (ai->ai_addr != NULL)
+	    free(ai->ai_addr);
+	next_ai = ai->ai_next;
+	free(ai);
+	ai = next_ai;
+    }
+}
+
+/*
+ * Return 1 if the string `s' represents an integer.
+ */
+static int
+is_integer(s)
+    const char *s;
+{
+    if (*s == '-' || *s == '+')
+	s++;
+    if (*s < '0' || '9' < *s)
+	return 0;
+
+    s++;
+    while ('0' <= *s && *s <= '9')
+	s++;
+
+    return (*s == '\0');
+}
+
+/*
+ * Return 1 if the string `s' represents an IPv4 address.
+ * Unlike inet_addr(), it doesn't permit malformed nortation such
+ * as "192.168".
+ */
+static int
+is_address(s)
+    const char *s;
+{
+    const static char delimiters[] = {'.', '.', '.', '\0'};
+    int i, j;
+    int octet;
+
+    for (i = 0; i < 4; i++) {
+	if (*s == '0' && *(s + 1) != delimiters[i])
+	    return 0;
+	for (j = 0, octet = 0; '0' <= *s && *s <= '9' && j < 3; s++, j++)
+	    octet = octet * 10 + (*s - '0');
+	if (j == 0 || octet > 255 || *s != delimiters[i])
+	    return 0;
+	s++;
+    }
+
+    return 1;
+}
+
+/*
+ * Calcurate length of the string `s', where `s' is set by
+ * sprintf(s, "%d", n).
+ */
+static int
+itoa_length(n)
+    int n;
+{
+    int result = 1;
+
+    if (n < 0) {
+	n = -n;
+	result++;
+    }
+
+    while (n >= 10) {
+	result++;
+	n /= 10;
+    }
+
+    return result;
+}
+
+/*
+ * getaddrinfo().
+ */
+int
+getaddrinfo(nodename, servname, hints, res)
+    const char *nodename;
+    const char *servname;
+    const struct addrinfo *hints;
+    struct addrinfo **res;
+{
+    struct addrinfo *head_res = NULL;
+    struct addrinfo *tail_res = NULL;
+    struct addrinfo *new_res;
+    struct sockaddr_in *sa_in;
+    struct in_addr **addr_list;
+    struct in_addr *addr_list_buf[2];
+    struct in_addr addr_buf;
+    struct in_addr **ap;
+    struct servent *servent;
+    struct hostent *hostent;
+    const char *canonname = NULL;
+    in_port_t port;
+    int saved_h_errno;
+    int result = 0;
+
+#ifdef ENABLE_PTHREAD
+    pthread_mutex_lock(&gai_mutex);
+#endif
+
+    saved_h_errno = h_errno;
+
+    if (nodename == NULL && servname == NULL) {
+	result = EAI_NONAME;
+	goto end;
+    }
+
+    if (hints != NULL) {
+	if (hints->ai_family != PF_INET && hints->ai_family != PF_UNSPEC) {
+	    result = EAI_FAMILY;
+	    goto end;
+	}
+	if (hints->ai_socktype != SOCK_DGRAM
+	    && hints->ai_socktype != SOCK_STREAM
+	    && hints->ai_socktype != 0) {
+	    result = EAI_SOCKTYPE;
+	    goto end;
+	}
+    } else {
+	hints = &default_hints;
+    }
+
+    if (servname != NULL) {
+	if (is_integer(servname))
+	    port = htons(atoi(servname));
+	else  {
+	    if (hints->ai_flags & AI_NUMERICSERV) {
+		result = EAI_NONAME;
+		goto end;
+	    }
+
+	    if (hints->ai_socktype == SOCK_DGRAM)
+		servent = getservbyname(servname, "udp");
+	    else if (hints->ai_socktype == SOCK_STREAM)
+		servent = getservbyname(servname, "tcp");
+	    else if (hints->ai_socktype == 0)
+		servent = getservbyname(servname, "tcp");
+	    else {
+		result = EAI_SOCKTYPE;
+		goto end;
+	    }
+
+	    if (servent == NULL) {
+		result = EAI_SERVICE;
+		goto end;
+	    }
+	    port = servent->s_port;
+	}
+    } else {
+	port = htons(0);
+    }
+
+    if (nodename != NULL) {
+	if (is_address(nodename)) {
+	    addr_buf.s_addr = inet_addr(nodename);
+	    addr_list_buf[0] = &addr_buf;
+	    addr_list_buf[1] = NULL;
+	    addr_list = addr_list_buf;
+
+	    if (hints->ai_flags & AI_CANONNAME
+		&& !(hints->ai_flags & AI_NUMERICHOST)) {
+		hostent = gethostbyaddr((char *)&addr_buf,
+		    sizeof(struct in_addr), AF_INET);
+		if (hostent != NULL)
+		    canonname = hostent->h_name;
+		else
+		    canonname = nodename;
+	    }
+	} else {
+	    if (hints->ai_flags & AI_NUMERICHOST) {
+		result = EAI_NONAME;
+		goto end;
+	    }
+
+	    hostent = gethostbyname(nodename);
+	    if (hostent == NULL) {
+		switch (h_errno) {
+		case HOST_NOT_FOUND:
+		case NO_DATA:
+		    result = EAI_NONAME;
+		    goto end;
+		case TRY_AGAIN:
+		    result = EAI_AGAIN;
+		    goto end;
+		default:
+		    result = EAI_FAIL;
+		    goto end;
+                }
+	    }
+	    addr_list = (struct in_addr **)hostent->h_addr_list;
+
+	    if (hints->ai_flags & AI_CANONNAME)
+		canonname = hostent->h_name;
+	}
+    } else {
+	if (hints->ai_flags & AI_PASSIVE)
+	    addr_buf.s_addr = htonl(INADDR_ANY);
+	else
+	    addr_buf.s_addr = htonl(0x7F000001);
+	addr_list_buf[0] = &addr_buf;
+	addr_list_buf[1] = NULL;
+	addr_list = addr_list_buf;
+    }
+
+    for (ap = addr_list; *ap != NULL; ap++) {
+	new_res = (struct addrinfo *)malloc(sizeof(struct addrinfo));
+	if (new_res == NULL) {
+	    if (head_res != NULL)
+		freeaddrinfo(head_res);
+	    result = EAI_MEMORY;
+	    goto end;
+	}
+
+	new_res->ai_family = PF_INET;
+	new_res->ai_socktype = hints->ai_socktype;
+	new_res->ai_protocol = hints->ai_protocol;
+	new_res->ai_addr = NULL;
+	new_res->ai_addrlen = sizeof(struct sockaddr_in);
+	new_res->ai_canonname = NULL;
+	new_res->ai_next = NULL;
+
+	new_res->ai_addr = (struct sockaddr *)
+	    malloc(sizeof(struct sockaddr_in));
+	if (new_res->ai_addr == NULL) {
+	    free(new_res);
+	    if (head_res != NULL)
+		freeaddrinfo(head_res);
+	    result = EAI_MEMORY;
+	    goto end;
+	}
+
+	sa_in = (struct sockaddr_in *)new_res->ai_addr;
+	memset(sa_in, 0, sizeof(struct sockaddr_in));
+	sa_in->sin_family = PF_INET;
+	sa_in->sin_port = port;
+	memcpy(&sa_in->sin_addr, *ap, sizeof(struct in_addr));
+
+	if (head_res == NULL)
+	    head_res = new_res;
+	else
+	    tail_res->ai_next = new_res;
+	tail_res = new_res;
+    }
+
+    if (canonname != NULL && head_res != NULL) {
+	head_res->ai_canonname = (char *)malloc(strlen(canonname) + 1);
+	if (head_res->ai_canonname != NULL)
+	    strcpy(head_res->ai_canonname, canonname);
+    }
+
+    *res = head_res;
+
+  end:
+    h_errno = saved_h_errno;
+#ifdef ENABLE_PTHREAD
+    pthread_mutex_unlock(&gai_mutex);
+#endif
+    return result;
+}
+
+/*
+ * getnameinfo().
+ */
+int
+getnameinfo(sa, salen, node, nodelen, serv, servlen, flags)
+    const struct sockaddr *sa;
+    socklen_t salen;
+    char *node;
+    socklen_t nodelen;
+    char *serv;
+    socklen_t servlen;
+    int flags;
+{
+    const struct sockaddr_in *sa_in = (const struct sockaddr_in *)sa;
+    struct hostent *hostent;
+    struct servent *servent;
+    char *ntoa_address;
+    int saved_h_errno;
+    int result = 0;
+
+#ifdef ENABLE_PTHREAD
+    pthread_mutex_lock(&gai_mutex);
+#endif
+
+    saved_h_errno = h_errno;
+
+    if (sa_in->sin_family != PF_INET) {
+	result = EAI_FAMILY;
+	goto end;
+    } else if (node == NULL && serv == NULL) {
+	result = EAI_NONAME;
+	goto end;
+    }
+
+    if (serv != NULL && servlen > 0) {
+	if (flags & NI_NUMERICSERV)
+	    servent = NULL;
+	else if (flags & NI_DGRAM)
+	    servent = getservbyport(sa_in->sin_port, "udp");
+	else
+	    servent = getservbyport(sa_in->sin_port, "tcp");
+
+	if (servent != NULL) {
+	    if (servlen <= strlen(servent->s_name)) {
+		result = EAI_OVERFLOW;
+		goto end;
+	    }
+	    strcpy(serv, servent->s_name);
+	} else {
+	    if (servlen <= itoa_length(ntohs(sa_in->sin_port))) {
+		result = EAI_OVERFLOW;
+		goto end;
+	    }
+	    sprintf(serv, "%d", ntohs(sa_in->sin_port));
+	}
+    }
+
+    if (node != NULL && nodelen > 0) {
+	if (flags & NI_NUMERICHOST)
+	    hostent = NULL;
+	else {
+	    hostent = gethostbyaddr((char *)&sa_in->sin_addr, 
+		sizeof(struct in_addr), AF_INET);
+	}
+	if (hostent != NULL) {
+	    if (nodelen <= strlen(hostent->h_name)) {
+		result = EAI_OVERFLOW;
+		goto end;
+	    }
+	    strcpy(node, hostent->h_name);
+	} else {
+	    if (flags & NI_NAMEREQD) {
+		result = EAI_NONAME;
+		goto end;
+	    }
+	    ntoa_address = inet_ntoa(sa_in->sin_addr);
+	    if (nodelen <= strlen(ntoa_address)) {
+		result = EAI_OVERFLOW;
+		goto end;
+	    }
+	    strcpy(node, ntoa_address);
+	}
+		
+    }
+
+  end:
+    h_errno = saved_h_errno;
+#ifdef ENABLE_PTHREAD
+    pthread_mutex_unlock(&gai_mutex);
+#endif
+    return result;
+}
+
diff --git a/src/getaddrinfo.h b/src/getaddrinfo.h
new file mode 100644
index 00000000..0d190a91
--- /dev/null
+++ b/src/getaddrinfo.h
@@ -0,0 +1,227 @@
+/*
+ * Copyright (c) 2001, 02  Motoyuki Kasahara
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ * 3. Neither the name of the project nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``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 PROJECT OR CONTRIBUTORS 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.
+ */
+
+#ifndef GETADDRINFO_H
+#define GETADDRINFO_H
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netdb.h>
+
+/********************************************************************/
+/*
+ * Undefine all the macros.
+ * <netdb.h> might defines some of them.
+ */
+#ifdef EAI_ADDRFAMILY
+#undef EAI_ADDRFAMILY
+#endif
+#ifdef EAI_AGAIN
+#undef EAI_AGAIN
+#endif
+#ifdef EAI_BADFLAGS
+#undef EAI_BADFLAGS
+#endif
+#ifdef EAI_FAIL
+#undef EAI_FAIL
+#endif
+#ifdef EAI_FAMILY
+#undef EAI_FAMILY
+#endif
+#ifdef EAI_MEMORY
+#undef EAI_MEMORY
+#endif
+#ifdef EAI_NONAME
+#undef EAI_NONAME
+#endif
+#ifdef EAI_OVERFLOW
+#undef EAI_OVERFLOW
+#endif
+#ifdef EAI_SERVICE
+#undef EAI_SERVICE
+#endif
+#ifdef EAI_SOCKTYPE
+#undef EAI_SOCKTYPE
+#endif
+#ifdef EAI_SYSTEM
+#undef EAI_SYSTEM
+#endif
+
+#ifdef AI_PASSIVE
+#undef AI_PASSIVE
+#endif
+#ifdef AI_CANONNAME
+#undef AI_CANONNAME
+#endif
+#ifdef AI_NUMERICHOST
+#undef AI_NUMERICHOST
+#endif
+#ifdef AI_NUMERICSERV
+#undef AI_NUMERICSERV
+#endif
+#ifdef AI_V4MAPPED
+#undef AI_V4MAPPED
+#endif
+#ifdef AI_ALL
+#undef AI_ALL
+#endif
+#ifdef AI_ADDRCONFIG
+#undef AI_ADDRCONFIG
+#endif
+#ifdef AI_DEFAULT
+#undef AI_DEFAULT
+#endif
+
+#ifdef NI_NOFQDN
+#undef NI_NOFQDN
+#endif
+#ifdef NI_NUMERICHOST
+#undef NI_NUMERICHOST
+#endif
+#ifdef NI_NAMEREQD
+#undef NI_NAMEREQD
+#endif
+#ifdef NI_NUMERICSERV
+#undef NI_NUMERICSERV
+#endif
+#ifdef NI_NUMERICSCOPE
+#undef NI_NUMERICSCOPE
+#endif
+
+#ifdef NI_DGRAM
+#undef NI_DGRAM
+#endif
+#ifdef NI_MAXHOST
+#undef NI_MAXHOST
+#endif
+#ifdef NI_MAXSERV
+#undef NI_MAXSERV
+#endif
+
+/*
+ * Fake struct and function names.
+ * <netdb.h> might declares all or some of them.
+ */
+#if defined(HAVE_GETADDRINFO) || defined(HAVE_GETNAMEINFO)
+#define addrinfo my_addrinfo
+#define gai_strerror my_gai_strerror
+#define freeaddrinfo my_freeaddrinfo
+#define getaddrinfo my_getaddrinfo
+#define getnameinfo my_getnameinfo
+#endif
+
+/********************************************************************/
+/*
+ * Error codes.
+ */
+#define EAI_ADDRFAMILY	1
+#define EAI_AGAIN	2
+#define EAI_BADFLAGS	3
+#define EAI_FAIL	4
+#define EAI_FAMILY	5
+#define EAI_MEMORY	6
+#define EAI_NONAME	7
+#define EAI_OVERFLOW	8
+#define EAI_SERVICE	9
+#define EAI_SOCKTYPE	10
+#define EAI_SYSTEM	11
+
+/*
+ * Flags for getaddrinfo().
+ */
+#define AI_ADDRCONFIG	0x0001
+#define AI_ALL		0x0002
+#define AI_CANONNAME	0x0004
+#define AI_NUMERICHOST	0x0008
+#define AI_NUMERICSERV	0x0010
+#define AI_PASSIVE	0x0020
+#define AI_V4MAPPED	0x0040
+#define AI_DEFAULT	(AI_V4MAPPED | AI_ADDRCONFIG)
+
+/*
+ * Flags for getnameinfo().
+ */
+#define NI_DGRAM	0x0001
+#define NI_NAMEREQD	0x0002
+#define NI_NOFQDN	0x0004
+#define NI_NUMERICHOST	0x0008
+#define NI_NUMERICSCOPE	0x0010
+#define NI_NUMERICSERV	0x0020
+
+/*
+ * Maximum length of FQDN and servie name for getnameinfo().
+ */
+#define NI_MAXHOST	1025
+#define NI_MAXSERV	32
+
+/*
+ * Address families and Protocol families.
+ */
+#ifndef AF_UNSPEC
+#define AF_UNSPEC AF_INET
+#endif
+#ifndef PF_UNSPEC
+#define PF_UNSPEC PF_INET
+#endif
+
+/*
+ * struct addrinfo.
+ */
+struct addrinfo {
+    int ai_flags;
+    int ai_family;
+    int ai_socktype;
+    int ai_protocol;
+    socklen_t ai_addrlen;
+    char *ai_canonname;
+    struct sockaddr *ai_addr;
+    struct addrinfo *ai_next;
+};
+
+/*
+ * Functions.
+ */
+#ifdef __STDC__
+const char *gai_strerror(int);
+void freeaddrinfo(struct addrinfo *);
+int getaddrinfo(const char *, const char *, const struct addrinfo *,
+    struct addrinfo **);
+int getnameinfo(const struct sockaddr *, socklen_t, char *, 
+    socklen_t, char *, socklen_t, int);
+#else
+const char *gai_strerror();
+void freeaddrinfo();
+int getaddrinfo();
+int getnameinfo();
+#endif
+
+#endif /* not GETADDRINFO_H */
diff --git a/src/inet.c b/src/inet.c
index afef5f45..efcfe3f9 100755
--- a/src/inet.c
+++ b/src/inet.c
@@ -9,6 +9,13 @@
 #include <stdlib.h>
 #include <string.h>
 
+#ifdef PSP
+int	gethostname (char *__name, size_t __len) {
+    snprintf(__name, __len, "psp");
+    return 0;
+}
+#endif
+
 /*=========================================================================*\
 * Internal function prototypes.
 \*=========================================================================*/
@@ -348,10 +355,12 @@ static void inet_pushresolved(lua_State *L, struct hostent *hp)
 \*-------------------------------------------------------------------------*/
 const char *inet_trycreate(p_socket ps, int family, int type, int protocol) {
     const char *err = socket_strerror(socket_create(ps, family, type, protocol));
+#ifdef IPV6_V6ONLY
     if (err == NULL && family == AF_INET6) {
         int yes = 1;
         setsockopt(*ps, IPPROTO_IPV6, IPV6_V6ONLY, (void *)&yes, sizeof(yes));
     }
+#endif
     return err;
 }
 
@@ -369,6 +378,7 @@ const char *inet_trydisconnect(p_socket ps, int family, p_timeout tm)
             return socket_strerror(socket_connect(ps, (SA *) &sin,
                 sizeof(sin), tm));
         }
+#ifndef NOIPV6
         case AF_INET6: {
             struct sockaddr_in6 sin6;
             struct in6_addr addrany = IN6ADDR_ANY_INIT;
@@ -378,6 +388,7 @@ const char *inet_trydisconnect(p_socket ps, int family, p_timeout tm)
             return socket_strerror(socket_connect(ps, (SA *) &sin6,
                 sizeof(sin6), tm));
         }
+#endif
     }
     return NULL;
 }
@@ -436,7 +447,9 @@ const char *inet_tryaccept(p_socket server, int family, p_socket client,
 	socklen_t len;
 	t_sockaddr_storage addr;
     switch (family) {
+#ifndef NOIPV6
         case AF_INET6: len = sizeof(struct sockaddr_in6); break;
+#endif
         case AF_INET: len = sizeof(struct sockaddr_in); break;
         default: len = sizeof(addr); break;
     }
@@ -524,9 +537,11 @@ int inet_pton(int af, const char *src, void *dst)
     if (af == AF_INET) {
         struct sockaddr_in *in = (struct sockaddr_in *) res->ai_addr;
         memcpy(dst, &in->sin_addr, sizeof(in->sin_addr));
+#ifndef NOIPV6
     } else if (af == AF_INET6) {
         struct sockaddr_in6 *in = (struct sockaddr_in6 *) res->ai_addr;
         memcpy(dst, &in->sin6_addr, sizeof(in->sin6_addr));
+#endif
     } else {
         ret = -1;
     }
diff --git a/src/inet.h b/src/inet.h
index 5618b61b..037ae748 100644
--- a/src/inet.h
+++ b/src/inet.h
@@ -18,6 +18,10 @@
 #include "socket.h"
 #include "timeout.h"
 
+#ifdef PSP
+#include "getaddrinfo.h"
+#endif
+
 #ifdef _WIN32
 #define LUASOCKET_INET_ATON
 #endif
diff --git a/src/makefile b/src/makefile
index 25b293c7..26c6a354 100755
--- a/src/makefile
+++ b/src/makefile
@@ -105,6 +105,19 @@ LUAPREFIX_solaris?=/usr/local
 CDIR_solaris?=lib/lua/$(LUAV)
 LDIR_solaris?=share/lua/$(LUAV)
 
+# LUAINC_psp:
+# LUALIB_psp:
+# where lua headers and libraries are found for psp builds
+ifeq ($(PLAT),psp)
+PSP_PREFIX=$(shell psp-config -P)
+endif
+LUAINC_psp?=$(PSP_PREFIX)/include
+LUAPREFIX_psp?=/psp
+CDIR_psp?=lib/lua/$(LUAV)
+LDIR_psp?=share/lua/$(LUAV)
+LUALIB_psp_base?=$(PSP_PREFIX)/lib
+LUALIB_psp=$(LUALIB_psp_base)/liblua.a
+
 # prefix: /usr/local /usr /opt/local /sw
 # the top of the default install tree
 prefix?=$(LUAPREFIX_$(PLAT))
@@ -153,7 +166,7 @@ print:
 #------
 # Supported platforms
 #
-PLATS= macosx linux win32 win64 mingw solaris
+PLATS= macosx linux win32 win64 mingw freebsd solaris psp
 
 #------
 # Compiler and linker settings
@@ -262,6 +275,26 @@ LDFLAGS_win64= //nologo //link //NOLOGO //DLL //INCREMENTAL:NO \
 LD_win64=cl
 SOCKET_win64=wsocket.obj
 
+#------
+# Compiler and linker settings
+# for PSP
+ifeq ($(PLAT),psp)
+PSPSDK=$(shell psp-config -p)
+endif
+
+SO_psp=a
+O_psp=o
+A_psp=a
+CC_psp=psp-gcc
+DEF_psp=-DLUASOCKET_$(DEBUG) -DUNIX_HAS_SUN_LEN
+CFLAGS_psp=$(LUAINC:%=-I%) $(PSPSDK:%=-I%)/include $(DEF) -Wall -Wshadow -Wextra \
+	-Wimplicit -O2 -ggdb3 -DHAVE_CONFIG_H -DSOCKET_SELECT -DNOIPV6
+LDFLAGS_psp=$(LUALIB) && mv templib.a 
+LD_psp=psp-ar rcs templib.a
+AR_psp=psp-ar rcs
+SOCKET_psp=usocket.o
+
+
 .SUFFIXES: .obj
 
 .c.obj:
@@ -279,6 +312,9 @@ MIME_SO=mime-$(MIME_V).$(SO)
 UNIX_SO=unix.$(SO)
 SERIAL_SO=serial.$(SO)
 SOCKET=$(SOCKET_$(PLAT))
+STATIC_LIB=libluasocket.$(A_$(PLAT))
+COMBINED_H=luasocket-combined.h
+TARGET_H=luasocket.h
 
 #------
 # Settings selected for platform
@@ -288,9 +324,17 @@ DEF=$(DEF_$(PLAT))
 CFLAGS=$(MYCFLAGS) $(CFLAGS_$(PLAT))
 LDFLAGS=$(MYLDFLAGS) $(LDFLAGS_$(PLAT))
 LD=$(LD_$(PLAT))
+AR=$(AR_$(PLAT))
 LUAINC= $(LUAINC_$(PLAT))
 LUALIB= $(LUALIB_$(PLAT))
 
+#------
+# Platform-specific modules
+#
+PLATFORM_OBJS_psp= \
+	netdb-compat.$(O) \
+	getaddrinfo.$(O)
+
 #------
 # Modules belonging to socket-core
 #
@@ -387,6 +431,9 @@ mingw:
 solaris:
 	$(MAKE) all-unix PLAT=solaris
 
+psp:
+	$(MAKE) static PLAT=psp
+
 none:
 	@echo "Please run"
 	@echo "   make PLATFORM"
@@ -395,7 +442,18 @@ none:
 
 all: $(SOCKET_SO) $(MIME_SO)
 
-$(SOCKET_SO): $(SOCKET_OBJS)
+static: $(STATIC_LIB) $(COMBINED_H)
+
+$(COMBINED_H): luasocket.h compat.h mime.h
+	sed '29,$$d' luasocket.h > $(COMBINED_H)
+	sed -e '1,2d' -e '$$d' compat.h >> $(COMBINED_H)
+	sed -n '30,$$p' luasocket.h >> $(COMBINED_H)
+	sed '11d' mime.h >> $(COMBINED_H)
+
+$(STATIC_LIB): $(PLATFORM_OBJS_$(PLAT)) $(SOCKET_OBJS) $(MIME_OBJS) $(UNIX_OBJS) $(SERIAL_OBJS)
+	$(AR) $@ $(PLATFORM_OBJS_$(PLAT)) $(SOCKET_OBJS) $(MIME_OBJS) $(UNIX_OBJS) $(SERIAL_OBJS)
+
+$(SOCKET_SO): $(PLATFORM_OBJS_$(PLAT)) $(SOCKET_OBJS)
 	$(LD) $(SOCKET_OBJS) $(LDFLAGS)$@
 
 $(MIME_SO): $(MIME_OBJS)
@@ -423,12 +481,22 @@ install-unix: install
 	$(INSTALL_EXEC) $(UNIX_SO) $(INSTALL_SOCKET_CDIR)/$(UNIX_SO)
 	$(INSTALL_EXEC) $(SERIAL_SO) $(INSTALL_SOCKET_CDIR)/$(SERIAL_SO)
 
+install-static:
+	$(INSTALL_DIR) $(INSTALL_TOP_LDIR)
+	$(INSTALL_DATA) $(TO_TOP_LDIR) $(INSTALL_TOP_LDIR)
+	$(INSTALL_DIR) $(INSTALL_SOCKET_LDIR)
+	$(INSTALL_DATA) $(TO_SOCKET_LDIR) $(INSTALL_SOCKET_LDIR)
+	$(INSTALL_DIR) $(INSTALL_TOP)/lib
+	$(INSTALL_EXEC) $(STATIC_LIB) $(INSTALL_TOP)/lib
+	$(INSTALL_DIR) $(INSTALL_TOP)/include
+	$(INSTALL_DATA) $(COMBINED_H) $(INSTALL_TOP)/include/$(TARGET_H)
+
 local:
 	$(MAKE) install INSTALL_TOP_CDIR=.. INSTALL_TOP_LDIR=..
 
 clean:
-	rm -f $(SOCKET_SO) $(SOCKET_OBJS) $(SERIAL_OBJS)
-	rm -f $(MIME_SO) $(UNIX_SO) $(SERIAL_SO) $(MIME_OBJS) $(UNIX_OBJS)
+	rm -f $(SOCKET_SO) $(PLATFORM_OBJS_$(PLAT)) $(SOCKET_OBJS) $(SERIAL_OBJS) $(COMBINED_H)
+	rm -f $(STATIC_LIB) $(MIME_SO) $(UNIX_SO) $(SERIAL_SO) $(MIME_OBJS) $(UNIX_OBJS)
 
 .PHONY: all $(PLATS) default clean echo none
 
@@ -459,3 +527,5 @@ unix.$(O): unix.c auxiliar.h socket.h io.h timeout.h usocket.h \
 	options.h unix.h buffer.h
 usocket.$(O): usocket.c socket.h io.h timeout.h usocket.h
 wsocket.$(O): wsocket.c socket.h io.h timeout.h usocket.h
+getaddrinfo.$(O): getaddrinfo.c getaddrinfo.h
+netdb-compat.$(O): netdb-compat.c netdb-compat.h
diff --git a/src/netdb-compat.c b/src/netdb-compat.c
new file mode 100644
index 00000000..61ba6b8f
--- /dev/null
+++ b/src/netdb-compat.c
@@ -0,0 +1,142 @@
+/*
+ *	symbian_stubs.c
+ *
+ *	Copyright (c) Nokia 2004-2005.  All rights reserved.
+ *      This code is licensed under the same terms as Perl itself.
+ *
+ *  netdb-compat.c
+ *  Copyright (c) Dima Pulkinen 2024
+ *
+ */
+
+#include "netdb-compat.h"
+#include <string.h>
+
+static const struct protoent protocols[] = {
+    { "tcp",	0,	 6 },
+    { "udp",	0,	17 }
+};
+
+/* The protocol field (the last) is left empty to save both space
+ * and time because practically all services have both tcp and udp
+ * allocations in IANA. */
+static const struct servent services[] = {
+    { "http",		0,	  80,	0 }, /* Optimization. */
+    { "https",		0,	 443,	0 },
+    { "imap",		0,	 143,	0 },
+    { "imaps",		0,	 993,   0 },
+    { "smtp",		0,	  25,	0 },
+    { "irc",		0,	 194,	0 },
+
+    { "ftp",		0,	  21,	0 },
+    { "ssh",		0,	  22,	0 },
+    { "tftp",		0,	  69,	0 },
+    { "pop3",		0,	 110,	0 },
+    { "sftp",		0,	 115,	0 },
+    { "nntp",		0,	 119,	0 },
+    { "ntp",		0,	 123,	0 },
+    { "snmp",		0,	 161,	0 },
+    { "ldap",		0,	 389,	0 },
+    { "rsync",		0,	 873,	0 },
+    { "socks",		0,	1080,	0 }
+};
+
+struct protoent* getprotobynumber(int number) {
+    int i;
+    for (i = 0; i < sizeof(protocols)/sizeof(struct protoent); i++)
+        if (protocols[i].p_proto == number)
+            return (struct protoent*)(&(protocols[i]));
+    return 0;
+}
+
+struct protoent* getprotobyname(const char* name) {
+    int i;
+    for (i = 0; i < sizeof(protocols)/sizeof(struct protoent); i++)
+        if (strcmp(name, protocols[i].p_name) == 0)
+            return (struct protoent*)(&(protocols[i]));
+    return 0;
+}
+    
+struct servent* getservbyname(const char* name, const char* proto) {
+    int i;
+    for (i = 0; i < sizeof(services)/sizeof(struct servent); i++)
+        if (strcmp(name, services[i].s_name) == 0)
+            return (struct servent*)(&(services[i]));
+    return 0;
+}
+
+struct servent* getservbyport(int port, const char* proto) {
+    int i;
+    for (i = 0; i < sizeof(services)/sizeof(struct servent); i++)
+        if (services[i].s_port == port)
+            return (struct servent*)(&(services[i]));
+    return 0;
+}
+
+/*
+ * Copyright (c) 1987, 1993
+ *    The Regents of the University of California.  All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
+ */
+
+/*
+ * Portions Copyright (c) 1996-1999 by Internet Software Consortium.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
+ * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
+ * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+ * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
+ * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+ * SOFTWARE.
+ */
+
+static const char *h_errlist[] =
+{
+	"Resolver Error 0 (no error)",
+	"Unknown host",				/* 1 HOST_NOT_FOUND */
+	"Host name lookup failure",		/* 2 TRY_AGAIN */
+	"Unknown server error",			/* 3 NO_RECOVERY */
+	"No address associated with name",	/* 4 NO_ADDRESS */
+};
+#define h_nerr (int)(sizeof h_errlist / sizeof h_errlist[0])
+
+
+const char *hstrerror(int err)
+{
+	if (err < 0)
+		return "Resolver internal error";
+	else if (err < h_nerr)
+		return h_errlist[err];
+	
+	return "Unknown resolver error";
+}
+
diff --git a/src/netdb-compat.h b/src/netdb-compat.h
new file mode 100644
index 00000000..af370b39
--- /dev/null
+++ b/src/netdb-compat.h
@@ -0,0 +1,55 @@
+/*
+ * Phoenix-RTOS
+ *
+ * libphoenix
+ *
+ * netdb.h
+ *
+ * Copyright 2018 Phoenix Systems
+ * Author: Jan Sikorski, Michal Miroslaw
+ *
+ * This file is part of Phoenix-RTOS.
+ *
+ * %LICENSE%
+ *
+ * netdb-compat.h
+ * Copyright (c) Dima Pulkinen 2024
+ *
+ */
+
+#ifndef _NETDB_COMPAT_H_
+#define _NETDB_COMPAT_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct servent {
+	char  *s_name;
+	char **s_aliases;
+	int    s_port;
+	char  *s_proto;
+};
+
+
+struct protoent {
+	char *p_name;
+	char **p_aliases;
+	int p_proto;
+};
+
+const char *hstrerror(int err);
+
+struct servent *getservbyname(const char *name, const char *proto);
+struct servent *getservbyport(int port, const char *proto);
+
+struct protoent *getprotobyname(const char *name);
+struct protoent *getprotobynumber(int proto);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif
diff --git a/src/options.c b/src/options.c
index 9dea6bda..399e5cae 100644
--- a/src/options.c
+++ b/src/options.c
@@ -12,7 +12,9 @@
 * Internal functions prototypes
 \*=========================================================================*/
 static int opt_setmembership(lua_State *L, p_socket ps, int level, int name);
+#if defined(IPV6_ADD_MEMBERSHIP) || defined(IPV6_DROP_MEMBERSHIP)
 static int opt_ip6_setmembership(lua_State *L, p_socket ps, int level, int name);
+#endif
 static int opt_setboolean(lua_State *L, p_socket ps, int level, int name);
 static int opt_getboolean(lua_State *L, p_socket ps, int level, int name);
 static int opt_setint(lua_State *L, p_socket ps, int level, int name);
@@ -243,6 +245,7 @@ int opt_set_tcp_defer_accept(lua_State *L, p_socket ps)
 #endif
 
 /*------------------------------------------------------*/
+#ifdef IPV6_UNICAST_HOPS
 int opt_set_ip6_unicast_hops(lua_State *L, p_socket ps)
 {
   return opt_setint(L, ps, IPPROTO_IPV6, IPV6_UNICAST_HOPS);
@@ -252,8 +255,10 @@ int opt_get_ip6_unicast_hops(lua_State *L, p_socket ps)
 {
   return opt_getint(L, ps, IPPROTO_IPV6, IPV6_UNICAST_HOPS);
 }
+#endif
 
 /*------------------------------------------------------*/
+#ifdef IPV6_MULTICAST_HOPS
 int opt_set_ip6_multicast_hops(lua_State *L, p_socket ps)
 {
   return opt_setint(L, ps, IPPROTO_IPV6, IPV6_MULTICAST_HOPS);
@@ -263,6 +268,7 @@ int opt_get_ip6_multicast_hops(lua_State *L, p_socket ps)
 {
   return opt_getint(L, ps, IPPROTO_IPV6, IPV6_MULTICAST_HOPS);
 }
+#endif
 
 /*------------------------------------------------------*/
 int opt_set_ip_multicast_loop(lua_State *L, p_socket ps)
@@ -276,6 +282,7 @@ int opt_get_ip_multicast_loop(lua_State *L, p_socket ps)
 }
 
 /*------------------------------------------------------*/
+#ifdef IPV6_MULTICAST_LOOP
 int opt_set_ip6_multicast_loop(lua_State *L, p_socket ps)
 {
     return opt_setboolean(L, ps, IPPROTO_IPV6, IPV6_MULTICAST_LOOP);
@@ -285,6 +292,7 @@ int opt_get_ip6_multicast_loop(lua_State *L, p_socket ps)
 {
     return opt_getboolean(L, ps, IPPROTO_IPV6, IPV6_MULTICAST_LOOP);
 }
+#endif
 
 /*------------------------------------------------------*/
 int opt_set_linger(lua_State *L, p_socket ps)
@@ -362,17 +370,22 @@ int opt_set_ip_drop_membersip(lua_State *L, p_socket ps)
 }
 
 /*------------------------------------------------------*/
+#ifdef IPV6_ADD_MEMBERSHIP
 int opt_set_ip6_add_membership(lua_State *L, p_socket ps)
 {
     return opt_ip6_setmembership(L, ps, IPPROTO_IPV6, IPV6_ADD_MEMBERSHIP);
 }
+#endif
 
+#ifdef IPV6_DROP_MEMBERSHIP
 int opt_set_ip6_drop_membersip(lua_State *L, p_socket ps)
 {
     return opt_ip6_setmembership(L, ps, IPPROTO_IPV6, IPV6_DROP_MEMBERSHIP);
 }
+#endif
 
 /*------------------------------------------------------*/
+#ifdef IPV6_V6ONLY
 int opt_get_ip6_v6only(lua_State *L, p_socket ps)
 {
     return opt_getboolean(L, ps, IPPROTO_IPV6, IPV6_V6ONLY);
@@ -382,6 +395,7 @@ int opt_set_ip6_v6only(lua_State *L, p_socket ps)
 {
     return opt_setboolean(L, ps, IPPROTO_IPV6, IPV6_V6ONLY);
 }
+#endif
 
 /*------------------------------------------------------*/
 int opt_get_error(lua_State *L, p_socket ps)
@@ -421,6 +435,7 @@ static int opt_setmembership(lua_State *L, p_socket ps, int level, int name)
     return opt_set(L, ps, level, name, (char *) &val, sizeof(val));
 }
 
+#if defined(IPV6_ADD_MEMBERSHIP) || defined(IPV6_DROP_MEMBERSHIP)
 static int opt_ip6_setmembership(lua_State *L, p_socket ps, int level, int name)
 {
     struct ipv6_mreq val;                   /* obj, opt-name, table */
@@ -446,6 +461,7 @@ static int opt_ip6_setmembership(lua_State *L, p_socket ps, int level, int name)
     }
     return opt_set(L, ps, level, name, (char *) &val, sizeof(val));
 }
+#endif
 
 static
 int opt_get(lua_State *L, p_socket ps, int level, int name, void *val, int* len)
diff --git a/src/options.h b/src/options.h
index 26d6f025..2331cce4 100644
--- a/src/options.h
+++ b/src/options.h
@@ -1,11 +1,11 @@
 #ifndef OPTIONS_H
 #define OPTIONS_H
 /*=========================================================================*\
-* Common option interface 
+* Common option interface
 * LuaSocket toolkit
 *
 * This module provides a common interface to socket options, used mainly by
-* modules UDP and TCP. 
+* modules UDP and TCP.
 \*=========================================================================*/
 
 #include "luasocket.h"
@@ -78,17 +78,23 @@ int opt_set_tcp_fastopen(lua_State *L, p_socket ps);
 int opt_set_tcp_fastopen_connect(lua_State *L, p_socket ps);
 #endif
 
+#ifdef IPV6_UNICAST_HOPS
 int opt_set_ip6_unicast_hops(lua_State *L, p_socket ps);
 int opt_get_ip6_unicast_hops(lua_State *L, p_socket ps);
+#endif
 
+#ifdef IPV6_MULTICAST_HOPS
 int opt_set_ip6_multicast_hops(lua_State *L, p_socket ps);
 int opt_get_ip6_multicast_hops(lua_State *L, p_socket ps);
+#endif
 
 int opt_set_ip_multicast_loop(lua_State *L, p_socket ps);
 int opt_get_ip_multicast_loop(lua_State *L, p_socket ps);
 
+#ifdef IPV6_MULTICAST_LOOP
 int opt_set_ip6_multicast_loop(lua_State *L, p_socket ps);
 int opt_get_ip6_multicast_loop(lua_State *L, p_socket ps);
+#endif
 
 int opt_set_linger(lua_State *L, p_socket ps);
 int opt_get_linger(lua_State *L, p_socket ps);
@@ -101,11 +107,17 @@ int opt_get_ip_multicast_if(lua_State *L, p_socket ps);
 int opt_set_ip_add_membership(lua_State *L, p_socket ps);
 int opt_set_ip_drop_membersip(lua_State *L, p_socket ps);
 
+#ifdef IPV6_ADD_MEMBERSHIP
 int opt_set_ip6_add_membership(lua_State *L, p_socket ps);
+#endif
+#ifdef IPV6_DROP_MEMBERSHIP
 int opt_set_ip6_drop_membersip(lua_State *L, p_socket ps);
+#endif
 
+#ifdef IPV6_V6ONLY
 int opt_set_ip6_v6only(lua_State *L, p_socket ps);
 int opt_get_ip6_v6only(lua_State *L, p_socket ps);
+#endif
 
 int opt_get_error(lua_State *L, p_socket ps);
 
diff --git a/src/psp-un.h b/src/psp-un.h
new file mode 100644
index 00000000..467af624
--- /dev/null
+++ b/src/psp-un.h
@@ -0,0 +1,59 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 1982, 1986, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
+ */
+
+/*
+ *  psp-un.h
+ *  Copyright (c) Dima Pulkinen 2024
+ */
+
+#ifndef _PSP_UN_H_
+#define _PSP_UN_H_
+
+#include <sys/socket.h>
+
+/*
+ * Historically, (struct sockaddr) needed to fit inside an mbuf.
+ * For this reason, UNIX domain sockets were therefore limited to
+ * 104 bytes. While this limit is no longer necessary, it is kept for
+ * binary compatibility reasons.
+ */
+#define	SUNPATHLEN	104
+
+/*
+ * Definitions for UNIX IPC domain.
+ */
+struct sockaddr_un {
+	unsigned char	sun_len;	/* sockaddr len including null */
+	sa_family_t	sun_family;	/* AF_UNIX */
+	char	sun_path[SUNPATHLEN];	/* path name (gag) */
+};
+
+#endif /* !_PSP_UN_H_ */
diff --git a/src/serial.c b/src/serial.c
index 21485d3e..688f1326 100644
--- a/src/serial.c
+++ b/src/serial.c
@@ -10,7 +10,11 @@
 #include "unix.h"
 
 #include <string.h>
+#ifndef PSP
 #include <sys/un.h>
+#else
+#include "psp-un.h"
+#endif
 
 /*
 Reuses userdata definition from unix.h, since it is useful for all
diff --git a/src/tcp.c b/src/tcp.c
index f0012064..87d078d4 100644
--- a/src/tcp.c
+++ b/src/tcp.c
@@ -107,7 +107,9 @@ static t_opt optset[] = {
 #ifdef TCP_KEEPINTVL
     {"tcp-keepintvl", opt_set_tcp_keepintvl},
 #endif
+#ifdef IPV6_V6ONLY
     {"ipv6-v6only", opt_set_ip6_v6only},
+#endif
     {"linger",      opt_set_linger},
 	{"recv-buffer-size",     opt_set_recv_buf_size},
 	{"send-buffer-size",     opt_set_send_buf_size},
diff --git a/src/udp.c b/src/udp.c
index 712ad50f..73de6450 100755
--- a/src/udp.c
+++ b/src/udp.c
@@ -80,12 +80,24 @@ static t_opt optset[] = {
     {"ip-multicast-loop",    opt_set_ip_multicast_loop},
     {"ip-add-membership",    opt_set_ip_add_membership},
     {"ip-drop-membership",   opt_set_ip_drop_membersip},
+#ifdef IPV6_UNICAST_HOPS
     {"ipv6-unicast-hops",    opt_set_ip6_unicast_hops},
+#endif
+#ifdef IPV6_MULTICAST_HOPS
     {"ipv6-multicast-hops",  opt_set_ip6_unicast_hops},
+#endif
+#ifdef IPV6_MULTICAST_LOOP
     {"ipv6-multicast-loop",  opt_set_ip6_multicast_loop},
+#endif
+#ifdef IPV6_ADD_MEMBERSHIP
     {"ipv6-add-membership",  opt_set_ip6_add_membership},
+#endif
+#ifdef IPV6_DROP_MEMBERSHIP
     {"ipv6-drop-membership", opt_set_ip6_drop_membersip},
+#endif
+#ifdef IPV6_V6ONLY
     {"ipv6-v6only",          opt_set_ip6_v6only},
+#endif
 	{"recv-buffer-size",     opt_set_recv_buf_size},
 	{"send-buffer-size",     opt_set_send_buf_size},
     {NULL,                   NULL}
@@ -100,10 +112,18 @@ static t_opt optget[] = {
     {"ip-multicast-if",      opt_get_ip_multicast_if},
     {"ip-multicast-loop",    opt_get_ip_multicast_loop},
     {"error",                opt_get_error},
+#ifdef IPV6_UNICAST_HOPS
     {"ipv6-unicast-hops",    opt_get_ip6_unicast_hops},
+#endif
+#ifdef IPV6_MULTICAST_HOPS
     {"ipv6-multicast-hops",  opt_get_ip6_unicast_hops},
+#endif
+#ifdef IPV6_MULTICAST_LOOP
     {"ipv6-multicast-loop",  opt_get_ip6_multicast_loop},
+#endif
+#ifdef IPV6_V6ONLY
     {"ipv6-v6only",          opt_get_ip6_v6only},
+#endif
 	{"recv-buffer-size",     opt_get_recv_buf_size},
 	{"send-buffer-size",     opt_get_send_buf_size},
     {NULL,                   NULL}
diff --git a/src/unixdgram.c b/src/unixdgram.c
index 69093d73..20c98292 100644
--- a/src/unixdgram.c
+++ b/src/unixdgram.c
@@ -12,7 +12,11 @@
 #include <string.h>
 #include <stdlib.h>
 
+#ifndef PSP
 #include <sys/un.h>
+#else
+#include "psp-un.h"
+#endif
 
 #define UNIXDGRAM_DATAGRAMSIZE 8192
 
diff --git a/src/unixstream.c b/src/unixstream.c
index 02aced9c..b5b0b8ad 100644
--- a/src/unixstream.c
+++ b/src/unixstream.c
@@ -10,7 +10,11 @@
 #include "unixstream.h"
 
 #include <string.h>
+#ifndef PSP
 #include <sys/un.h>
+#else
+#include "psp-un.h"
+#endif
 
 /*=========================================================================*\
 * Internal function prototypes
diff --git a/src/usocket.h b/src/usocket.h
index 45f2f99f..3e21b24a 100644
--- a/src/usocket.h
+++ b/src/usocket.h
@@ -29,7 +29,16 @@
 #include <arpa/inet.h>
 /* TCP options (nagle algorithm disable) */
 #include <netinet/tcp.h>
+#ifndef PSP
 #include <net/if.h>
+#else
+#include "getaddrinfo.h"
+
+#ifndef INET6_ADDRSTRLEN
+#define INET6_ADDRSTRLEN INET_ADDRSTRLEN
+#endif
+
+#endif
 
 #ifndef SO_REUSEPORT
 #define SO_REUSEPORT SO_REUSEADDR