--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/nspr/pr/src/io/prmapopt.c	Mon Jul 28 10:47:06 2014 +0200
@@ -0,0 +1,452 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+ * This file defines _PR_MapOptionName().  The purpose of putting
+ * _PR_MapOptionName() in a separate file is to work around a Winsock
+ * header file problem on Windows NT.
+ *
+ * On Windows NT, if we define _WIN32_WINNT to be 0x0400 (in order
+ * to use Service Pack 3 extensions), windows.h includes winsock2.h
+ * (instead of winsock.h), which doesn't define many socket options
+ * defined in winsock.h.
+ *
+ * We need the socket options defined in winsock.h.  So this file
+ * includes winsock.h, with _WIN32_WINNT undefined.
+ */
+
+#if defined(WINNT) || defined(__MINGW32__)
+#include <winsock.h>
+#endif
+
+/* MinGW doesn't define these in its winsock.h. */
+#ifdef __MINGW32__
+#ifndef IP_TTL
+#define IP_TTL 7
+#endif
+#ifndef IP_TOS
+#define IP_TOS 8
+#endif
+#endif
+
+#include "primpl.h"
+
+#ifdef HAVE_NETINET_TCP_H
+#include <netinet/tcp.h>  /* TCP_NODELAY, TCP_MAXSEG */
+#endif
+
+#ifndef _PR_PTHREADS
+
+PRStatus PR_CALLBACK _PR_SocketGetSocketOption(PRFileDesc *fd, PRSocketOptionData *data)
+{
+    PRStatus rv;
+    PRInt32 length;
+    PRInt32 level, name;
+
+    /*
+     * PR_SockOpt_Nonblocking is a special case that does not
+     * translate to a getsockopt() call
+     */
+    if (PR_SockOpt_Nonblocking == data->option)
+    {
+        data->value.non_blocking = fd->secret->nonblocking;
+        return PR_SUCCESS;
+    }
+
+    rv = _PR_MapOptionName(data->option, &level, &name);
+    if (PR_SUCCESS == rv)
+    {
+        switch (data->option)
+        {
+            case PR_SockOpt_Linger:
+            {
+#if !defined(XP_BEOS) || defined(BONE_VERSION)
+                struct linger linger;
+                length = sizeof(linger);
+                rv = _PR_MD_GETSOCKOPT(
+                    fd, level, name, (char *) &linger, &length);
+                if (PR_SUCCESS == rv)
+                {
+                    PR_ASSERT(sizeof(linger) == length);
+                    data->value.linger.polarity =
+                        (linger.l_onoff) ? PR_TRUE : PR_FALSE;
+                    data->value.linger.linger =
+                        PR_SecondsToInterval(linger.l_linger);
+                }
+                break;
+#else
+                PR_SetError( PR_NOT_IMPLEMENTED_ERROR, 0 );
+                return PR_FAILURE;
+#endif
+            }
+            case PR_SockOpt_Reuseaddr:
+            case PR_SockOpt_Keepalive:
+            case PR_SockOpt_NoDelay:
+            case PR_SockOpt_Broadcast:
+            {
+#ifdef WIN32 /* Winsock */
+                BOOL value;
+#else
+                PRIntn value;
+#endif
+                length = sizeof(value);
+                rv = _PR_MD_GETSOCKOPT(
+                    fd, level, name, (char*)&value, &length);
+                if (PR_SUCCESS == rv)
+                    data->value.reuse_addr = (0 == value) ? PR_FALSE : PR_TRUE;
+                break;
+            }
+            case PR_SockOpt_McastLoopback:
+            {
+#ifdef WIN32 /* Winsock */
+                BOOL bool;
+#else
+                PRUint8 bool;
+#endif
+                length = sizeof(bool);
+                rv = _PR_MD_GETSOCKOPT(
+                    fd, level, name, (char*)&bool, &length);
+                if (PR_SUCCESS == rv)
+                    data->value.mcast_loopback = (0 == bool) ? PR_FALSE : PR_TRUE;
+                break;
+            }
+            case PR_SockOpt_RecvBufferSize:
+            case PR_SockOpt_SendBufferSize:
+            case PR_SockOpt_MaxSegment:
+            {
+                PRIntn value;
+                length = sizeof(value);
+                rv = _PR_MD_GETSOCKOPT(
+                    fd, level, name, (char*)&value, &length);
+                if (PR_SUCCESS == rv)
+                    data->value.recv_buffer_size = value;
+                break;
+            }
+            case PR_SockOpt_IpTimeToLive:
+            case PR_SockOpt_IpTypeOfService:
+            {
+                /* These options should really be an int (or PRIntn). */
+                length = sizeof(PRUintn);
+                rv = _PR_MD_GETSOCKOPT(
+                    fd, level, name, (char*)&data->value.ip_ttl, &length);
+                break;
+            }
+            case PR_SockOpt_McastTimeToLive:
+            {
+#ifdef WIN32 /* Winsock */
+                int ttl;
+#else
+                PRUint8 ttl;
+#endif
+                length = sizeof(ttl);
+                rv = _PR_MD_GETSOCKOPT(
+                    fd, level, name, (char*)&ttl, &length);
+                if (PR_SUCCESS == rv)
+                    data->value.mcast_ttl = ttl;
+                break;
+            }
+#ifdef IP_ADD_MEMBERSHIP
+            case PR_SockOpt_AddMember:
+            case PR_SockOpt_DropMember:
+            {
+                struct ip_mreq mreq;
+                length = sizeof(mreq);
+                rv = _PR_MD_GETSOCKOPT(
+                    fd, level, name, (char*)&mreq, &length);
+                if (PR_SUCCESS == rv)
+                {
+                    data->value.add_member.mcaddr.inet.ip =
+                        mreq.imr_multiaddr.s_addr;
+                    data->value.add_member.ifaddr.inet.ip =
+                        mreq.imr_interface.s_addr;
+                }
+                break;
+            }
+#endif /* IP_ADD_MEMBERSHIP */
+            case PR_SockOpt_McastInterface:
+            {
+                /* This option is a struct in_addr. */
+                length = sizeof(data->value.mcast_if.inet.ip);
+                rv = _PR_MD_GETSOCKOPT(
+                    fd, level, name,
+                    (char*)&data->value.mcast_if.inet.ip, &length);
+                break;
+            }
+            default:
+                PR_NOT_REACHED("Unknown socket option");
+                break;
+        }  
+    }
+    return rv;
+}  /* _PR_SocketGetSocketOption */
+
+PRStatus PR_CALLBACK _PR_SocketSetSocketOption(PRFileDesc *fd, const PRSocketOptionData *data)
+{
+    PRStatus rv;
+    PRInt32 level, name;
+
+    /*
+     * PR_SockOpt_Nonblocking is a special case that does not
+     * translate to a setsockopt call.
+     */
+    if (PR_SockOpt_Nonblocking == data->option)
+    {
+#ifdef WINNT
+        PR_ASSERT((fd->secret->md.io_model_committed == PR_FALSE)
+            || (fd->secret->nonblocking == data->value.non_blocking));
+        if (fd->secret->md.io_model_committed
+            && (fd->secret->nonblocking != data->value.non_blocking))
+        {
+            /*
+             * On NT, once we have associated a socket with the io
+             * completion port, we can't disassociate it.  So we
+             * can't change the nonblocking option of the socket
+             * afterwards.
+             */
+            PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
+            return PR_FAILURE;
+        }
+#endif
+        fd->secret->nonblocking = data->value.non_blocking;
+        return PR_SUCCESS;
+    }
+
+    rv = _PR_MapOptionName(data->option, &level, &name);
+    if (PR_SUCCESS == rv)
+    {
+        switch (data->option)
+        {
+            case PR_SockOpt_Linger:
+            {
+#if !defined(XP_BEOS) || defined(BONE_VERSION)
+                struct linger linger;
+                linger.l_onoff = data->value.linger.polarity;
+                linger.l_linger = PR_IntervalToSeconds(data->value.linger.linger);
+                rv = _PR_MD_SETSOCKOPT(
+                    fd, level, name, (char*)&linger, sizeof(linger));
+                break;
+#else
+                PR_SetError( PR_NOT_IMPLEMENTED_ERROR, 0 );
+                return PR_FAILURE;
+#endif
+            }
+            case PR_SockOpt_Reuseaddr:
+            case PR_SockOpt_Keepalive:
+            case PR_SockOpt_NoDelay:
+            case PR_SockOpt_Broadcast:
+            {
+#ifdef WIN32 /* Winsock */
+                BOOL value;
+#else
+                PRIntn value;
+#endif
+                value = (data->value.reuse_addr) ? 1 : 0;
+                rv = _PR_MD_SETSOCKOPT(
+                    fd, level, name, (char*)&value, sizeof(value));
+                break;
+            }
+            case PR_SockOpt_McastLoopback:
+            {
+#ifdef WIN32 /* Winsock */
+                BOOL bool;
+#else
+                PRUint8 bool;
+#endif
+                bool = data->value.mcast_loopback ? 1 : 0;
+                rv = _PR_MD_SETSOCKOPT(
+                    fd, level, name, (char*)&bool, sizeof(bool));
+                break;
+            }
+            case PR_SockOpt_RecvBufferSize:
+            case PR_SockOpt_SendBufferSize:
+            case PR_SockOpt_MaxSegment:
+            {
+                PRIntn value = data->value.recv_buffer_size;
+                rv = _PR_MD_SETSOCKOPT(
+                    fd, level, name, (char*)&value, sizeof(value));
+                break;
+            }
+            case PR_SockOpt_IpTimeToLive:
+            case PR_SockOpt_IpTypeOfService:
+            {
+                /* These options should really be an int (or PRIntn). */
+                rv = _PR_MD_SETSOCKOPT(
+                    fd, level, name, (char*)&data->value.ip_ttl, sizeof(PRUintn));
+                break;
+            }
+            case PR_SockOpt_McastTimeToLive:
+            {
+#ifdef WIN32 /* Winsock */
+                int ttl;
+#else
+                PRUint8 ttl;
+#endif
+                ttl = data->value.mcast_ttl;
+                rv = _PR_MD_SETSOCKOPT(
+                    fd, level, name, (char*)&ttl, sizeof(ttl));
+                break;
+            }
+#ifdef IP_ADD_MEMBERSHIP
+            case PR_SockOpt_AddMember:
+            case PR_SockOpt_DropMember:
+            {
+                struct ip_mreq mreq;
+                mreq.imr_multiaddr.s_addr =
+                    data->value.add_member.mcaddr.inet.ip;
+                mreq.imr_interface.s_addr =
+                    data->value.add_member.ifaddr.inet.ip;
+                rv = _PR_MD_SETSOCKOPT(
+                    fd, level, name, (char*)&mreq, sizeof(mreq));
+                break;
+            }
+#endif /* IP_ADD_MEMBERSHIP */
+            case PR_SockOpt_McastInterface:
+            {
+                /* This option is a struct in_addr. */
+                rv = _PR_MD_SETSOCKOPT(
+                    fd, level, name, (char*)&data->value.mcast_if.inet.ip,
+                    sizeof(data->value.mcast_if.inet.ip));
+                break;
+            }
+            default:
+                PR_NOT_REACHED("Unknown socket option");
+                break;
+        }  
+    }
+    return rv;
+}  /* _PR_SocketSetSocketOption */
+
+#endif /* ! _PR_PTHREADS */
+
+/*
+ *********************************************************************
+ *********************************************************************
+ **
+ ** Make sure that the following is at the end of this file,
+ ** because we will be playing with macro redefines.
+ **
+ *********************************************************************
+ *********************************************************************
+ */
+
+/*
+ * Not every platform has all the socket options we want to
+ * support.  Some older operating systems such as SunOS 4.1.3
+ * don't have the IP multicast socket options.  Win32 doesn't
+ * have TCP_MAXSEG.
+ *
+ * To deal with this problem, we define the missing socket
+ * options as _PR_NO_SUCH_SOCKOPT.  _PR_MapOptionName() fails with
+ * PR_OPERATION_NOT_SUPPORTED_ERROR if a socket option not
+ * available on the platform is requested.
+ */
+
+/*
+ * Sanity check.  SO_LINGER and TCP_NODELAY should be available
+ * on all platforms.  Just to make sure we have included the
+ * appropriate header files.  Then any undefined socket options
+ * are really missing.
+ */
+
+#if !defined(SO_LINGER)
+#error "SO_LINGER is not defined"
+#endif
+
+#if !defined(TCP_NODELAY)
+#error "TCP_NODELAY is not defined"
+#endif
+
+/*
+ * Make sure the value of _PR_NO_SUCH_SOCKOPT is not
+ * a valid socket option.
+ */
+#define _PR_NO_SUCH_SOCKOPT -1
+
+#ifndef SO_KEEPALIVE
+#define SO_KEEPALIVE        _PR_NO_SUCH_SOCKOPT
+#endif
+
+#ifndef SO_SNDBUF
+#define SO_SNDBUF           _PR_NO_SUCH_SOCKOPT
+#endif
+
+#ifndef SO_RCVBUF
+#define SO_RCVBUF           _PR_NO_SUCH_SOCKOPT
+#endif
+
+#ifndef IP_MULTICAST_IF                 /* set/get IP multicast interface   */
+#define IP_MULTICAST_IF     _PR_NO_SUCH_SOCKOPT
+#endif
+
+#ifndef IP_MULTICAST_TTL                /* set/get IP multicast timetolive  */
+#define IP_MULTICAST_TTL    _PR_NO_SUCH_SOCKOPT
+#endif
+
+#ifndef IP_MULTICAST_LOOP               /* set/get IP multicast loopback    */
+#define IP_MULTICAST_LOOP   _PR_NO_SUCH_SOCKOPT
+#endif
+
+#ifndef IP_ADD_MEMBERSHIP               /* add  an IP group membership      */
+#define IP_ADD_MEMBERSHIP   _PR_NO_SUCH_SOCKOPT
+#endif
+
+#ifndef IP_DROP_MEMBERSHIP              /* drop an IP group membership      */
+#define IP_DROP_MEMBERSHIP  _PR_NO_SUCH_SOCKOPT
+#endif
+
+#ifndef IP_TTL                          /* set/get IP Time To Live          */
+#define IP_TTL              _PR_NO_SUCH_SOCKOPT
+#endif
+
+#ifndef IP_TOS                          /* set/get IP Type Of Service       */
+#define IP_TOS              _PR_NO_SUCH_SOCKOPT
+#endif
+
+#ifndef TCP_NODELAY                     /* don't delay to coalesce data     */
+#define TCP_NODELAY         _PR_NO_SUCH_SOCKOPT
+#endif
+
+#ifndef TCP_MAXSEG                      /* maxumum segment size for tcp     */
+#define TCP_MAXSEG          _PR_NO_SUCH_SOCKOPT
+#endif
+
+#ifndef SO_BROADCAST                 /* enable broadcast on udp sockets */
+#define SO_BROADCAST        _PR_NO_SUCH_SOCKOPT
+#endif
+
+PRStatus _PR_MapOptionName(
+    PRSockOption optname, PRInt32 *level, PRInt32 *name)
+{
+    static PRInt32 socketOptions[PR_SockOpt_Last] =
+    {
+        0, SO_LINGER, SO_REUSEADDR, SO_KEEPALIVE, SO_RCVBUF, SO_SNDBUF,
+        IP_TTL, IP_TOS, IP_ADD_MEMBERSHIP, IP_DROP_MEMBERSHIP,
+        IP_MULTICAST_IF, IP_MULTICAST_TTL, IP_MULTICAST_LOOP,
+        TCP_NODELAY, TCP_MAXSEG, SO_BROADCAST
+    };
+    static PRInt32 socketLevels[PR_SockOpt_Last] =
+    {
+        0, SOL_SOCKET, SOL_SOCKET, SOL_SOCKET, SOL_SOCKET, SOL_SOCKET,
+        IPPROTO_IP, IPPROTO_IP, IPPROTO_IP, IPPROTO_IP,
+        IPPROTO_IP, IPPROTO_IP, IPPROTO_IP,
+        IPPROTO_TCP, IPPROTO_TCP, SOL_SOCKET
+    };
+
+    if ((optname < PR_SockOpt_Linger)
+    || (optname >= PR_SockOpt_Last))
+    {
+        PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
+        return PR_FAILURE;
+    }
+
+    if (socketOptions[optname] == _PR_NO_SUCH_SOCKOPT)
+    {
+        PR_SetError(PR_OPERATION_NOT_SUPPORTED_ERROR, 0);
+        return PR_FAILURE;
+    }
+    *name = socketOptions[optname];
+    *level = socketLevels[optname];
+    return PR_SUCCESS;
+}  /* _PR_MapOptionName */