From 18b94b70dc27e56898d3a1c6be718fd2a1ed30e7 Mon Sep 17 00:00:00 2001
From: Valery Yatsko <darkwire.tl@gmail.com>
Date: Wed, 2 Apr 2008 17:00:18 +0400
Subject: [PATCH] replacing ssld with servlink

---
 Makefile.in          |    2 +-
 include/s_conf.h     |   36 +-
 servlink/.cvsignore  |    3 -
 servlink/.indent.pro |    1 -
 servlink/Makefile.in |   82 ----
 servlink/README      |   71 ---
 servlink/TODO        |    7 -
 servlink/control.c   |  129 -----
 servlink/control.h   |   57 ---
 servlink/io.c        |  657 -------------------------
 servlink/io.h        |   48 --
 servlink/servlink.c  |  121 -----
 servlink/servlink.h  |   83 ----
 ssld/Makefile.am     |   14 +
 ssld/Makefile.in     |  499 +++++++++++++++++++
 ssld/ssld.c          | 1096 ++++++++++++++++++++++++++++++++++++++++++
 16 files changed, 1630 insertions(+), 1276 deletions(-)
 delete mode 100644 servlink/.cvsignore
 delete mode 100644 servlink/.indent.pro
 delete mode 100644 servlink/Makefile.in
 delete mode 100644 servlink/README
 delete mode 100644 servlink/TODO
 delete mode 100644 servlink/control.c
 delete mode 100644 servlink/control.h
 delete mode 100644 servlink/io.c
 delete mode 100644 servlink/io.h
 delete mode 100644 servlink/servlink.c
 delete mode 100644 servlink/servlink.h
 create mode 100644 ssld/Makefile.am
 create mode 100644 ssld/Makefile.in
 create mode 100644 ssld/ssld.c

diff --git a/Makefile.in b/Makefile.in
index 7714844d..f86c522c 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -46,7 +46,7 @@ CFLAGS		= @CFLAGS@
 # the system one.
 #CFLAGS= -DNDEBUG -g -O2 -D"FD_SETSIZE=1024"
 SHELL=/bin/sh
-SUBDIRS=libratbox modules extensions src tools servlink doc help
+SUBDIRS=libratbox modules extensions src tools ssld doc help
 CLEANDIRS = ${SUBDIRS}
 RSA_FILES=rsa_respond/README rsa_respond/respond.c rsa_respond/Makefile
 
diff --git a/include/s_conf.h b/include/s_conf.h
index 3fa389dc..5b917481 100644
--- a/include/s_conf.h
+++ b/include/s_conf.h
@@ -54,22 +54,26 @@ struct ip_value
 extern FILE *conf_fbfile_in;
 extern char conf_line_in[256];
 
-struct ConfItem
-{
-	struct ConfItem *next;	/* list node pointer */
-	unsigned int status;	/* If CONF_ILLEGAL, delete when no clients */
-	unsigned int flags;
-	int clients;		/* Number of *LOCAL* clients using this */
-	char *name;		/* IRC name, nick, server name, or original u@h */
-	char *host;		/* host part of user@host */
-	char *passwd;		/* doubles as kline reason *ugh* */
-	char *spasswd;		/* Password to send. */
-	char *user;		/* user part of user@host */
-	int port;
-	time_t hold;		/* Hold action until this time (calendar time) */
-	char *className;	/* Name of class */
-	struct Class *c_class;	/* Class of connection */
-	rb_patricia_node_t *pnode;	/* Our patricia node */
+struct ConfItem
+{
+	unsigned int status;	/* If CONF_ILLEGAL, delete when no clients */
+	unsigned int flags;
+	int clients;		/* Number of *LOCAL* clients using this */
+
+	union
+	{
+		char *name;		/* IRC name, nick, server name, or original u@h */
+		const char *oper;
+	} info;
+
+	char *host;		/* host part of user@host */
+	char *passwd;		/* doubles as kline reason *ugh* */
+	char *spasswd;		/* Password to send. */
+	char *user;		/* user part of user@host */
+	int port;
+	time_t hold;		/* Hold action until this time (calendar time) */
+	struct Class *c_class;	/* Class of connection */
+	rb_patricia_node_t *pnode;
 };
 
 #define CONF_ILLEGAL            0x80000000
diff --git a/servlink/.cvsignore b/servlink/.cvsignore
deleted file mode 100644
index 224f7c65..00000000
--- a/servlink/.cvsignore
+++ /dev/null
@@ -1,3 +0,0 @@
-Makefile
-setup.h
-servlink
diff --git a/servlink/.indent.pro b/servlink/.indent.pro
deleted file mode 100644
index a4981660..00000000
--- a/servlink/.indent.pro
+++ /dev/null
@@ -1 +0,0 @@
--i8 -bli0 -ut -nsai -l100 -npcs
\ No newline at end of file
diff --git a/servlink/Makefile.in b/servlink/Makefile.in
deleted file mode 100644
index a0470123..00000000
--- a/servlink/Makefile.in
+++ /dev/null
@@ -1,82 +0,0 @@
-#
-# Makefile.in for servlink/src
-#
-# $Id: Makefile.in 1285 2006-05-05 15:03:53Z nenolod $
-#
-
-CC              = @CC@
-INSTALL         = @INSTALL@
-INSTALL_BIN     = @INSTALL_PROGRAM@
-INSTALL_DATA    = @INSTALL_DATA@
-INSTALL_SUID    = @INSTALL_PROGRAM@ -o root -m 4755
-RM              = @RM@
-LEX             = @LEX@
-LEXLIB          = @LEXLIB@
-CFLAGS          = @IRC_CFLAGS@ -DIRCD_PREFIX=\"@prefix@\"
-LDFLAGS         = @LDFLAGS@
-MKDEP           = @MKDEP@ -DIRCD_PREFIX=\"@prefix@\"
-MV              = @MV@
-RM              = @RM@
-prefix          = @prefix@
-exec_prefix     = @exec_prefix@
-bindir          = @bindir@
-libexecdir      = @libexecdir@
-confdir         = @confdir@
-localstatedir   = @localstatedir@
-
-ZIP_LIB		= @ZLIB_LD@
-
-IRCDLIBS        = @LIBS@ $(ZIP_LIB)
-
-INCLUDES        = -I. -I../include $(SSL_INCLUDES)
-CPPFLAGS        = ${INCLUDES} @CPPFLAGS@
-
-PROGS		= servlink
-
-SOURCES =     \
-  servlink.c  \
-  io.c        \
-  control.c
-  
-
-OBJECTS = ${SOURCES:.c=.o}
-
-all: servlink
-
-build: all
-
-servlink: ${OBJECTS}
-	${CC} ${CFLAGS} ${LDFLAGS} -o $@ ${OBJECTS} ${IRCDLIBS}
-
-install: build
-	@echo "ircd: installing servlink ($(PROGS))"
-	@for i in $(PROGS); do \
-                if test -f $(DESTDIR)$(bindir)/$$i; then \
-                        $(MV) $(DESTDIR)$(bindir)/$$i $(DESTDIR)$(bindir)/$$i.old; \
-                fi; \
-                $(INSTALL_BIN) $$i $(DESTDIR)$(bindir); \
-        done
-
-.c.o:
-	${CC} ${CPPFLAGS} ${CFLAGS} -c $<
-
-.PHONY: depend clean distclean
-depend:
-	@${MKDEP} ${CPPFLAGS} ${SOURCES} > .depend.tmp
-	@sed -e '/^# DO NOT DELETE THIS LINE/,$$d' <Makefile >Makefile.depend
-	@echo '# DO NOT DELETE THIS LINE!!!' >>Makefile.depend
-	@echo '# make depend needs it.' >>Makefile.depend
-	@cat .depend.tmp >>Makefile.depend
-	@mv Makefile.depend Makefile
-	@rm -f .depend.tmp
-
-clean:
-	${RM} -f *.o *~ *.core core servlink
-
-lint:
-	lint -aacgprxhH $(CPPFLAGS) -DIRCD_PREFIX=\"@prefix@\" $(SOURCES) >>../lint.out
-
-distclean: clean
-	${RM} -f Makefile
-
-# End of Makefile
diff --git a/servlink/README b/servlink/README
deleted file mode 100644
index 2ccfcd67..00000000
--- a/servlink/README
+++ /dev/null
@@ -1,71 +0,0 @@
-Servlink protocol documentation.
-$Id: README 1285 2006-05-05 15:03:53Z nenolod $
---------------
-
-After negotiating an incoming/outgoing server connection, the ircd will
-fork, then execve servlink, with fd 0 as one end of a control pipe and
-fd 1 as one end of a data pipe. fd 2 will be the socket connected to
-the remote server.
-
-The data pipe is used by the ircd to send/receive normal, decrypted,
-uncompressed IRC commands to/from the remote server.  The socket is used to
-send the (processed) data to the remote server, and receive the data from
-the remote server.
-
-The control pipe is used to activate encryption/compression and to set the
-encryption key/algorithm to be used.
-
-Format of control messages:
-
-<u8 command><optional data>
-
-data format:
-<u16 len><data>
-
-Commands:
-
-001 - SET_ZIP_OUT_LEVEL
-	data: yes
-	description:
-		set compression level (0 [use default, 6], or 1-9)
-
-002 - START_ZIP_OUT
-	data: no
-	description:
-		all data written to the data pipe will be compressed
-		prior to being sent to the remote server.
-
-003 - START_ZIP_IN
-	data: no
-	description:
-		all data not yet read from the slink program will be
-		decompressed before reading
-
-004 - INJECT_RECVQ
-	data: recvq
-
-	Used before INIT to inject any data read from the server fd which
-	should be pre-processed by servlink before being sent back
-	to the LOCAL_FD through the data fd.
-
-005 - INJECT_SENDQ
-	data: sendq
-
-	As above, but sent to remote server without processing.
-
-006 - INIT
-
-007 - ZIPSTATS
-	request to send ziplinks statistics reply.
-
-replies
-
-001 - ERROR
-	data: u32 len/char error[len]
-
-	fatal error message.
-
-002 - ZIPSTATS
-        data: u32 in/u32 in_wire/u32 out/u32 out_wire                           
-
-	ziplinks commpression statistics
diff --git a/servlink/TODO b/servlink/TODO
deleted file mode 100644
index 6fcefa16..00000000
--- a/servlink/TODO
+++ /dev/null
@@ -1,7 +0,0 @@
-Servlink todo list
-$Id: TODO 6 2005-09-10 01:02:21Z nenolod $
-------------------
-
-Fix any bugs that come up
-
-Think of improvements :)
diff --git a/servlink/control.c b/servlink/control.c
deleted file mode 100644
index 1f341a78..00000000
--- a/servlink/control.c
+++ /dev/null
@@ -1,129 +0,0 @@
-/************************************************************************
- *   IRC - Internet Relay Chat, servlink/servlink.c
- *
- *   This program is free software; you can redistribute it and/or modify
- *   it under the terms of the GNU General Public License as published by
- *   the Free Software Foundation; either version 1, or (at your option)
- *   any later version.
- *
- *   This program is distributed in the hope that it will be useful,
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *   GNU General Public License for more details.
- *
- *   You should have received a copy of the GNU General Public License
- *   along with this program; if not, write to the Free Software
- *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- *   $Id: control.c 1285 2006-05-05 15:03:53Z nenolod $
- */
-
-#include "setup.h"
-
-#include <sys/types.h>
-
-#include <assert.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <string.h>
-#ifdef HAVE_LIBZ
-#include <zlib.h>
-#endif
-
-#include "servlink.h"
-#include "io.h"
-#include "control.h"
-
-static cmd_handler cmd_set_zip_out_level;
-static cmd_handler cmd_start_zip_out;
-static cmd_handler cmd_start_zip_in;
-static cmd_handler cmd_init;
-
-struct command_def command_table[] = {
-	{CMD_SET_ZIP_OUT_LEVEL, cmd_set_zip_out_level, COMMAND_FLAG_DATA},
-	{CMD_START_ZIP_OUT, cmd_start_zip_out, 0},
-	{CMD_START_ZIP_IN, cmd_start_zip_in, 0},
-	{CMD_INJECT_RECVQ, process_recvq, COMMAND_FLAG_DATA},
-	{CMD_INJECT_SENDQ, process_sendq, COMMAND_FLAG_DATA},
-	{CMD_INIT, cmd_init, 0},
-	{CMD_ZIPSTATS, send_zipstats, 0},
-	{0, 0, 0}
-};
-
-void
-cmd_set_zip_out_level(struct ctrl_command *cmd)
-{
-#ifdef HAVE_LIBZ
-	out_state.zip_state.level = *cmd->data;
-	if((out_state.zip_state.level < -1) || (out_state.zip_state.level > 9))
-		send_error("invalid compression level %d", out_state.zip_state.level);
-#else
-	send_error("can't set compression level - no libz support!");
-#endif
-}
-
-void
-cmd_start_zip_out(struct ctrl_command *cmd)
-{
-#ifdef HAVE_LIBZ
-	int ret;
-
-	if(out_state.zip)
-		send_error("can't start compression - already started!");
-
-	out_state.zip_state.z_stream.total_in = 0;
-	out_state.zip_state.z_stream.total_out = 0;
-	out_state.zip_state.z_stream.zalloc = (alloc_func) 0;
-	out_state.zip_state.z_stream.zfree = (free_func) 0;
-	out_state.zip_state.z_stream.data_type = Z_ASCII;
-
-	if(out_state.zip_state.level <= 0)
-		out_state.zip_state.level = Z_DEFAULT_COMPRESSION;
-
-	if((ret = deflateInit(&out_state.zip_state.z_stream, out_state.zip_state.level)) != Z_OK)
-		send_error("deflateInit failed: %s", zError(ret));
-
-	out_state.zip = 1;
-#else
-	send_error("can't start compression - no libz support!");
-#endif
-}
-
-void
-cmd_start_zip_in(struct ctrl_command *cmd)
-{
-#ifdef HAVE_LIBZ
-	int ret;
-
-	if(in_state.zip)
-		send_error("can't start decompression - already started!");
-
-	in_state.zip_state.z_stream.total_in = 0;
-	in_state.zip_state.z_stream.total_out = 0;
-	in_state.zip_state.z_stream.zalloc = (alloc_func) 0;
-	in_state.zip_state.z_stream.zfree = (free_func) 0;
-	in_state.zip_state.z_stream.data_type = Z_ASCII;
-	if((ret = inflateInit(&in_state.zip_state.z_stream)) != Z_OK)
-		send_error("inflateInit failed: %s", zError(ret));
-	in_state.zip = 1;
-#else
-	send_error("can't start decompression - no libz support!");
-#endif
-}
-
-
-void
-cmd_init(struct ctrl_command *cmd)
-{
-	if(in_state.active || out_state.active)
-		send_error("CMD_INIT sent twice!");
-
-	in_state.active = 1;
-	out_state.active = 1;
-	CONTROL.read_cb = read_ctrl;
-	CONTROL.write_cb = NULL;
-	LOCAL.read_cb = read_data;
-	LOCAL.write_cb = NULL;
-	REMOTE.read_cb = read_net;
-	REMOTE.write_cb = NULL;
-}
diff --git a/servlink/control.h b/servlink/control.h
deleted file mode 100644
index 294eeb93..00000000
--- a/servlink/control.h
+++ /dev/null
@@ -1,57 +0,0 @@
-/************************************************************************
- *   IRC - Internet Relay Chat, servlink/control.h
- *
- *   This program is free software; you can redistribute it and/or modify
- *   it under the terms of the GNU General Public License as published by
- *   the Free Software Foundation; either version 1, or (at your option)
- *   any later version.
- *
- *   This program is distributed in the hope that it will be useful,
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *   GNU General Public License for more details.
- *
- *   You should have received a copy of the GNU General Public License
- *   along with this program; if not, write to the Free Software
- *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- *   $Id: control.h 1285 2006-05-05 15:03:53Z nenolod $
- */
-
-#ifndef INCLUDED_servlink_control_h
-#define INCLUDED_servlink_control_h
-
-#define CMD_SET_ZIP_OUT_LEVEL           1  /* data */
-#define CMD_START_ZIP_OUT               2
-#define CMD_START_ZIP_IN                3
-#define CMD_INJECT_RECVQ                4  /* data */
-#define CMD_INJECT_SENDQ                5  /* data */ 
-#define CMD_INIT                        6
-#define CMD_ZIPSTATS                    7
-
-#define RPL_ERROR                       1	/* data */
-#define RPL_ZIPSTATS                    2	/* data */
-
-/* flags */
-#define COMMAND_FLAG_DATA               0x0001	/* command has data
-						   following */
-struct ctrl_command
-{
-	int command;
-	int datalen;
-	int gotdatalen;
-	int readdata;
-	unsigned char *data;
-};
-
-typedef void cmd_handler(struct ctrl_command *);
-
-struct command_def
-{
-	unsigned int commandid;
-	cmd_handler *handler;
-	unsigned int flags;
-};
-
-extern struct command_def command_table[];
-#endif /* INCLUDED_servlink_control_h */
diff --git a/servlink/io.c b/servlink/io.c
deleted file mode 100644
index f4f91f2e..00000000
--- a/servlink/io.c
+++ /dev/null
@@ -1,657 +0,0 @@
-/************************************************************************
- *   IRC - Internet Relay Chat, servlink/io.c
- *
- *   This program is free software; you can redistribute it and/or modify
- *   it under the terms of the GNU General Public License as published by
- *   the Free Software Foundation; either version 1, or (at your option)
- *   any later version.
- *
- *   This program is distributed in the hope that it will be useful,
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *   GNU General Public License for more details.
- *
- *   You should have received a copy of the GNU General Public License
- *   along with this program; if not, write to the Free Software
- *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- *   $Id: io.c 3319 2007-03-29 20:03:06Z jilles $
- */
-
-#include "setup.h"
-
-#include <sys/types.h>
-#include <sys/socket.h>
-
-#include <assert.h>
-#include <errno.h>
-#include <string.h>
-#include <stdlib.h>
-#include <stdarg.h>
-#include <stdio.h>
-#include <unistd.h>
-
-#ifdef HAVE_LIBZ
-#include <zlib.h>
-#endif
-
-#include "servlink.h"
-#include "io.h"
-#include "control.h"
-
-static int check_error(int, int, int);
-
-static const char *
-fd_name(int fd)
-{
-	if(fd == CONTROL.fd)
-		return "control";
-	if(fd == LOCAL.fd)
-		return "data";
-	if(fd == REMOTE.fd)
-		return "network";
-
-	/* uh oh... */
-	return "unknown";
-}
-
-#if defined( HAVE_LIBZ )
-static unsigned char tmp_buf[BUFLEN];
-static unsigned char tmp2_buf[BUFLEN];
-#endif
-
-static unsigned char ctrl_buf[256] = "";
-static unsigned int ctrl_len = 0;
-static unsigned int ctrl_ofs = 0;
-
-void
-io_loop(int nfds)
-{
-	fd_set rfds;
-	fd_set wfds;
-	int i, ret;
-
-	/* loop forever */
-	for (;;)
-	{
-		FD_ZERO(&rfds);
-		FD_ZERO(&wfds);
-
-		for (i = 0; i < 3; i++)
-		{
-			if(fds[i].read_cb)
-				FD_SET(fds[i].fd, &rfds);
-			if(fds[i].write_cb)
-				FD_SET(fds[i].fd, &wfds);
-		}
-
-		/* we have <3 fds ever, so I don't think select is too painful */
-		ret = select(nfds, &rfds, &wfds, NULL, NULL);
-
-		if(ret < 0)
-		{
-			check_error(ret, IO_SELECT, -1);	/* exit on fatal errors */
-		}
-		else if(ret > 0)
-		{
-			/* call any callbacks */
-			for (i = 2; i >= 0; i--)
-			{
-				if(FD_ISSET(fds[i].fd, &rfds) && fds[i].read_cb)
-					(*fds[i].read_cb) ();
-				if(FD_ISSET(fds[i].fd, &wfds) && fds[i].write_cb)
-					(*fds[i].write_cb) ();
-			}
-		}
-	}
-}
-
-void
-send_data_blocking(int fd, unsigned char *data, int datalen)
-{
-	int ret;
-	fd_set wfds;
-
-	while (1)
-	{
-		ret = write(fd, data, datalen);
-
-		if(ret == datalen)
-			return;
-		else if(ret > 0)
-		{
-			data += ret;
-			datalen -= ret;
-		}
-
-		ret = check_error(ret, IO_WRITE, fd);
-
-		FD_ZERO(&wfds);
-		FD_SET(fd, &wfds);
-
-		/* sleep until we can write to the fd */
-		while (1)
-		{
-			ret = select(fd + 1, NULL, &wfds, NULL, NULL);
-
-			if(ret > 0)	/* break out so we can write */
-				break;
-
-			if(ret < 0)	/* error ? */
-				check_error(ret, IO_SELECT, fd);	/* exit on fatal errors */
-
-			/* loop on non-fatal errors */
-		}
-	}
-}
-
-/*
- * process_sendq:
- * 
- * used before CMD_INIT to pass contents of SendQ from ircd
- * to servlink.  This data must _not_ be encrypted/compressed.
- */
-void
-process_sendq(struct ctrl_command *cmd)
-{
-	send_data_blocking(REMOTE.fd, cmd->data, cmd->datalen);
-}
-
-/*
- * process_recvq:
- *
- * used before CMD_INIT to pass contents of RecvQ from ircd
- * to servlink.  This data must be decrypted/decopmressed before
- * sending back to the ircd.
- */
-void
-process_recvq(struct ctrl_command *cmd)
-{
-	int ret;
-	unsigned char *buf;
-	int blen;
-	unsigned char *data = cmd->data;
-	unsigned int datalen = cmd->datalen;
-
-	buf = data;
-	blen = datalen;
-	ret = -1;
-	if(datalen > READLEN)
-		send_error("Error processing INJECT_RECVQ - buffer too long (%d > %d)",
-			   datalen, READLEN);
-
-#ifdef HAVE_LIBZ
-	if(in_state.zip)
-	{
-		/* decompress data */
-		in_state.zip_state.z_stream.next_in = buf;
-		in_state.zip_state.z_stream.avail_in = blen;
-		in_state.zip_state.z_stream.next_out = tmp2_buf;
-		in_state.zip_state.z_stream.avail_out = BUFLEN;
-
-		buf = tmp2_buf;
-		while (in_state.zip_state.z_stream.avail_in)
-		{
-			if((ret = inflate(&in_state.zip_state.z_stream, Z_NO_FLUSH)) != Z_OK)
-			{
-				if(!strncmp("ERROR ", (char *)in_state.zip_state.z_stream.next_in, 6))
-					send_error("Received uncompressed ERROR");
-				else
-					send_error("Inflate failed: %s", zError(ret));
-			}
-			blen = BUFLEN - in_state.zip_state.z_stream.avail_out;
-
-			if(in_state.zip_state.z_stream.avail_in)
-			{
-				send_data_blocking(LOCAL.fd, buf, blen);
-				blen = 0;
-				in_state.zip_state.z_stream.next_out = buf;
-				in_state.zip_state.z_stream.avail_out = BUFLEN;
-			}
-		}
-
-		if(!blen)
-			return;
-	}
-#endif
-
-	send_data_blocking(LOCAL.fd, buf, blen);
-}
-
-void
-send_zipstats(struct ctrl_command *unused)
-{
-#ifdef HAVE_LIBZ
-	int i = 0;
-	int ret;
-	u_int32_t len;
-	if(!in_state.active || !out_state.active)
-		send_error("Error processing CMD_ZIPSTATS - link is not active!");
-	if(!in_state.zip || !out_state.zip)
-		send_error("Error processing CMD_ZIPSTATS - link is not compressed!");
-
-	ctrl_buf[i++] = RPL_ZIPSTATS;
-	ctrl_buf[i++] = 0;
-	ctrl_buf[i++] = 16;
-
-	len = (u_int32_t) in_state.zip_state.z_stream.total_out;
-	ctrl_buf[i++] = ((len >> 24) & 0xFF);
-	ctrl_buf[i++] = ((len >> 16) & 0xFF);
-	ctrl_buf[i++] = ((len >> 8) & 0xFF);
-	ctrl_buf[i++] = ((len) & 0xFF);
-
-	len = (u_int32_t) in_state.zip_state.z_stream.total_in;
-	ctrl_buf[i++] = ((len >> 24) & 0xFF);
-	ctrl_buf[i++] = ((len >> 16) & 0xFF);
-	ctrl_buf[i++] = ((len >> 8) & 0xFF);
-	ctrl_buf[i++] = ((len) & 0xFF);
-
-	len = (u_int32_t) out_state.zip_state.z_stream.total_in;
-	ctrl_buf[i++] = ((len >> 24) & 0xFF);
-	ctrl_buf[i++] = ((len >> 16) & 0xFF);
-	ctrl_buf[i++] = ((len >> 8) & 0xFF);
-	ctrl_buf[i++] = ((len) & 0xFF);
-
-	len = (u_int32_t) out_state.zip_state.z_stream.total_out;
-	ctrl_buf[i++] = ((len >> 24) & 0xFF);
-	ctrl_buf[i++] = ((len >> 16) & 0xFF);
-	ctrl_buf[i++] = ((len >> 8) & 0xFF);
-	ctrl_buf[i++] = ((len) & 0xFF);
-
-	in_state.zip_state.z_stream.total_in = 0;
-	in_state.zip_state.z_stream.total_out = 0;
-	out_state.zip_state.z_stream.total_in = 0;
-	out_state.zip_state.z_stream.total_out = 0;
-
-	ret = check_error(write(CONTROL.fd, ctrl_buf, i), IO_WRITE, CONTROL.fd);
-	if(ret < i)
-	{
-		/* write incomplete, register write cb */
-		CONTROL.write_cb = write_ctrl;
-		/*  deregister read_cb */
-		CONTROL.read_cb = NULL;
-		ctrl_ofs = ret;
-		ctrl_len = i - ret;
-		return;
-	}
-#else
-	send_error("can't send_zipstats -- no zlib support!");
-#endif
-}
-
-/* send_error
- *   - we ran into some problem, make a last ditch effort to 
- *     flush the control fd sendq, then (blocking) send an
- *     error message over the control fd.
- */
-void
-send_error(const char *message, ...)
-{
-	va_list args;
-	static int sending_error = 0;
-	struct linger linger_opt = { 1, 30 };	/* wait 30 seconds */
-	int len;
-
-	if(sending_error)
-		exit(1);	/* we did _try_ */
-
-	sending_error = 1;
-
-	if(ctrl_len)		/* attempt to flush any data we have... */
-	{
-		send_data_blocking(CONTROL.fd, (ctrl_buf + ctrl_ofs), ctrl_len);
-	}
-
-	/* prepare the message, in in_buf, since we won't be using it again.. */
-	in_state.buf[0] = RPL_ERROR;
-	in_state.buf[1] = 0;
-	in_state.buf[2] = 0;
-
-	va_start(args, message);
-	len = vsprintf((char *) in_state.buf + 3, message, args);
-	va_end(args);
-
-	in_state.buf[3 + len++] = '\0';
-	in_state.buf[1] = len >> 8;
-	in_state.buf[2] = len & 0xFF;
-	len += 3;
-
-	send_data_blocking(CONTROL.fd, in_state.buf, len);
-
-	/* XXX - is this portable?
-	 *       this obviously will fail on a non socket.. */
-	setsockopt(CONTROL.fd, SOL_SOCKET, SO_LINGER, &linger_opt, sizeof(struct linger));
-
-	/* well, we've tried... */
-	exit(1);		/* now abort */
-}
-
-/* read_ctrl
- *      called when a command is waiting on the control pipe
- */
-void
-read_ctrl(void)
-{
-	int ret;
-	unsigned char tmp[2];
-	unsigned char *len;
-	struct command_def *cdef;
-	static struct ctrl_command cmd = { 0, 0, 0, 0, NULL };
-
-	if(cmd.command == 0)	/* we don't have a command yet */
-	{
-		cmd.gotdatalen = 0;
-		cmd.datalen = 0;
-		cmd.readdata = 0;
-		cmd.data = NULL;
-
-		/* read the command */
-		if(!(ret = check_error(read(CONTROL.fd, tmp, 1), IO_READ, CONTROL.fd)))
-			return;
-
-		cmd.command = tmp[0];
-	}
-
-	for (cdef = command_table; cdef->commandid; cdef++)
-	{
-		if((int)cdef->commandid == cmd.command)
-			break;
-	}
-
-	if(!cdef->commandid)
-	{
-		send_error("Unsupported command (servlink/ircd out of sync?): %d", cmd.command);
-		/* NOTREACHED */
-	}
-
-	/* read datalen for commands including data */
-	if(cdef->flags & COMMAND_FLAG_DATA)
-	{
-		if(cmd.gotdatalen < 2)
-		{
-			len = tmp;
-			if(!(ret = check_error(read(CONTROL.fd, len,
-						    (2 - cmd.gotdatalen)), IO_READ, CONTROL.fd)))
-				return;
-
-			if(cmd.gotdatalen == 0)
-			{
-				cmd.datalen = len[0] << 8;
-				cmd.gotdatalen++;
-				ret--;
-				len++;
-			}
-			if(ret && (cmd.gotdatalen == 1))
-			{
-				cmd.datalen |= len[0];
-				cmd.gotdatalen++;
-				if(cmd.datalen > 0)
-					cmd.data = calloc(cmd.datalen, 1);
-			}
-		}
-	}
-
-	if(cmd.readdata < cmd.datalen)	/* try to get any remaining data */
-	{
-		if(!(ret = check_error(read(CONTROL.fd,
-					    (cmd.data + cmd.readdata),
-					    cmd.datalen - cmd.readdata), IO_READ, CONTROL.fd)))
-			return;
-
-		cmd.readdata += ret;
-		if(cmd.readdata < cmd.datalen)
-			return;
-	}
-
-	/* we now have the command and any data */
-	(*cdef->handler) (&cmd);
-
-	if(cmd.datalen > 0)
-		free(cmd.data);
-	cmd.command = 0;
-}
-
-void
-write_ctrl(void)
-{
-	int ret;
-
-	assert(ctrl_len);
-
-	if(!(ret = check_error(write(CONTROL.fd, (ctrl_buf + ctrl_ofs),
-				     ctrl_len), IO_WRITE, CONTROL.fd)))
-		return;		/* no data waiting */
-
-	ctrl_len -= ret;
-
-	if(!ctrl_len)
-	{
-		/* write completed, de-register write cb */
-		CONTROL.write_cb = NULL;
-		/* reregister read_cb */
-		CONTROL.read_cb = read_ctrl;
-		ctrl_ofs = 0;
-	}
-	else
-		ctrl_ofs += ret;
-}
-
-void
-read_data(void)
-{
-	int ret, ret2;
-	unsigned char *buf = out_state.buf;
-	int blen;
-	ret2 = -1;
-	assert(!out_state.len);
-
-#if defined(HAVE_LIBZ) 
-	if(out_state.zip || out_state.crypt)
-		buf = tmp_buf;
-#endif
-
-	while ((ret = check_error(read(LOCAL.fd, buf, READLEN), IO_READ, LOCAL.fd)))
-	{
-		blen = ret;
-#ifdef HAVE_LIBZ
-		if(out_state.zip)
-		{
-			out_state.zip_state.z_stream.next_in = buf;
-			out_state.zip_state.z_stream.avail_in = ret;
-
-			buf = out_state.buf;
-			out_state.zip_state.z_stream.next_out = buf;
-			out_state.zip_state.z_stream.avail_out = BUFLEN;
-			if(!(ret2 = deflate(&out_state.zip_state.z_stream,
-					    Z_PARTIAL_FLUSH)) == Z_OK)
-				send_error("error compressing outgoing data - deflate returned: %s",
-					   zError(ret2));
-
-			if(!out_state.zip_state.z_stream.avail_out)
-				send_error("error compressing outgoing data - avail_out == 0");
-			if(out_state.zip_state.z_stream.avail_in)
-				send_error("error compressing outgoing data - avail_in != 0");
-
-			blen = BUFLEN - out_state.zip_state.z_stream.avail_out;
-		}
-#endif
-
-
-		ret = check_error(write(REMOTE.fd, out_state.buf, blen), IO_WRITE, REMOTE.fd);
-		if(ret < blen)
-		{
-			/* write incomplete, register write cb */
-			REMOTE.write_cb = write_net;
-			/*  deregister read_cb */
-			LOCAL.read_cb = NULL;
-			out_state.ofs = ret;
-			out_state.len = blen - ret;
-			return;
-		}
-#if defined(HAVE_LIBZ) 
-		if(out_state.zip)
-			buf = tmp_buf;
-#endif
-	}
-
-}
-
-void
-write_net(void)
-{
-	int ret;
-
-	assert(out_state.len);
-
-	if(!(ret = check_error(write(REMOTE.fd,
-				     (out_state.buf + out_state.ofs),
-				     out_state.len), IO_WRITE, REMOTE.fd)))
-		return;		/* no data waiting */
-
-	out_state.len -= ret;
-
-	if(!out_state.len)
-	{
-		/* write completed, de-register write cb */
-		REMOTE.write_cb = NULL;
-		/* reregister read_cb */
-		LOCAL.read_cb = read_data;
-		out_state.ofs = 0;
-	}
-	else
-		out_state.ofs += ret;
-}
-
-void
-read_net(void)
-{
-	int ret;
-	int ret2;
-	unsigned char *buf = in_state.buf;
-	int blen;
-	ret2 = -1;
-	assert(!in_state.len);
-
-#if defined(HAVE_LIBZ)
-	if(in_state.zip)
-		buf = tmp_buf;
-#endif
-
-	while ((ret = check_error(read(REMOTE.fd, buf, READLEN), IO_READ, REMOTE.fd)))
-	{
-		blen = ret;
-#ifdef HAVE_LIBZ
-		if(in_state.zip)
-		{
-			/* decompress data */
-			in_state.zip_state.z_stream.next_in = buf;
-			in_state.zip_state.z_stream.avail_in = ret;
-			in_state.zip_state.z_stream.next_out = in_state.buf;
-			in_state.zip_state.z_stream.avail_out = BUFLEN;
-
-			while (in_state.zip_state.z_stream.avail_in)
-			{
-				if((ret2 = inflate(&in_state.zip_state.z_stream,
-						   Z_NO_FLUSH)) != Z_OK)
-				{
-					if(!strncmp("ERROR ", (char *)buf, 6))
-						send_error("Received uncompressed ERROR");
-					send_error("Inflate failed: %s", zError(ret2));
-				}
-				blen = BUFLEN - in_state.zip_state.z_stream.avail_out;
-
-				if(in_state.zip_state.z_stream.avail_in)
-				{
-					if(blen)
-					{
-						send_data_blocking(LOCAL.fd, in_state.buf, blen);
-						blen = 0;
-					}
-
-					in_state.zip_state.z_stream.next_out = in_state.buf;
-					in_state.zip_state.z_stream.avail_out = BUFLEN;
-				}
-			}
-
-			if(!blen)
-				return;	/* that didn't generate any decompressed input.. */
-		}
-#endif
-
-		ret = check_error(write(LOCAL.fd, in_state.buf, blen), IO_WRITE, LOCAL.fd);
-
-		if(ret < blen)
-		{
-			in_state.ofs = ret;
-			in_state.len = blen - ret;
-			/* write incomplete, register write cb */
-			LOCAL.write_cb = write_data;
-			/* deregister read_cb */
-			REMOTE.read_cb = NULL;
-			return;
-		}
-#if defined(HAVE_LIBZ)
-		if(in_state.zip)
-			buf = tmp_buf;
-#endif
-	}
-}
-
-void
-write_data(void)
-{
-	int ret;
-
-	assert(in_state.len);
-
-	if(!(ret = check_error(write(LOCAL.fd,
-				     (in_state.buf + in_state.ofs),
-				     in_state.len), IO_WRITE, LOCAL.fd)))
-		return;
-
-	in_state.len -= ret;
-
-	if(!in_state.len)
-	{
-		/* write completed, de-register write cb */
-		LOCAL.write_cb = NULL;
-		/* reregister read_cb */
-		REMOTE.read_cb = read_net;
-		in_state.ofs = 0;
-	}
-	else
-		in_state.ofs += ret;
-}
-
-int
-check_error(int ret, int io, int fd)
-{
-	if(ret > 0)		/* no error */
-		return ret;
-	if(ret == 0)		/* EOF */
-	{
-		send_error("%s failed on %s: EOF", IO_TYPE(io), FD_NAME(fd));
-		exit(1);	/* NOTREACHED */
-	}
-
-	/* ret == -1.. */
-	switch (errno)
-	{
-	case EINPROGRESS:
-	case EWOULDBLOCK:
-#if EAGAIN != EWOULDBLOCK
-	case EAGAIN:
-#endif
-	case EALREADY:
-	case EINTR:
-#ifdef ERESTART
-	case ERESTART:
-#endif
-		/* non-fatal error, 0 bytes read */
-		return 0;
-	}
-
-	/* fatal error */
-	send_error("%s failed on %s: %s", IO_TYPE(io), FD_NAME(fd), strerror(errno));
-	exit(1);		/* NOTREACHED */
-}
diff --git a/servlink/io.h b/servlink/io.h
deleted file mode 100644
index da2126a3..00000000
--- a/servlink/io.h
+++ /dev/null
@@ -1,48 +0,0 @@
-/************************************************************************
- *   IRC - Internet Relay Chat, servlink/io.h
- *
- *   This program is free software; you can redistribute it and/or modify
- *   it under the terms of the GNU General Public License as published by
- *   the Free Software Foundation; either version 1, or (at your option)
- *   any later version.
- *
- *   This program is distributed in the hope that it will be useful,
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *   GNU General Public License for more details.
- *
- *   You should have received a copy of the GNU General Public License
- *   along with this program; if not, write to the Free Software
- *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- *   $Id: io.h 6 2005-09-10 01:02:21Z nenolod $
- */
-
-#ifndef INCLUDED_servlink_io_h
-#define INCLUDED_servlink_io_h
-
-#include "control.h"
-
-#define IO_READ                 0
-#define IO_WRITE                1
-#define IO_SELECT               2
-
-#define IO_TYPE(io)     ((io==IO_SELECT)?"select": \
-                         ((io==IO_WRITE)?"write":"read"))
-
-#define FD_NAME(fd)     (fd_name(fd))
-
-extern void io_loop(int nfds);
-extern void write_data(void);
-extern void read_data(void);
-extern void write_ctrl(void);
-extern void read_ctrl(void);
-extern void write_net(void);
-extern void read_net(void);
-extern void send_error(const char *, ...);
-extern void send_data_blocking(int fd, unsigned char *data, int datalen);
-extern cmd_handler process_recvq;
-extern cmd_handler process_sendq;
-extern cmd_handler send_zipstats;
-
-#endif /* INCLUDED_servlink_io_h */
diff --git a/servlink/servlink.c b/servlink/servlink.c
deleted file mode 100644
index 1276200c..00000000
--- a/servlink/servlink.c
+++ /dev/null
@@ -1,121 +0,0 @@
-/************************************************************************
- *   IRC - Internet Relay Chat, servlink/servlink.c
- *
- *   This program is free software; you can redistribute it and/or modify
- *   it under the terms of the GNU General Public License as published by
- *   the Free Software Foundation; either version 1, or (at your option)
- *   any later version.
- *
- *   This program is distributed in the hope that it will be useful,
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *   GNU General Public License for more details.
- *
- *   You should have received a copy of the GNU General Public License
- *   along with this program; if not, write to the Free Software
- *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- *   $Id: servlink.c 6 2005-09-10 01:02:21Z nenolod $
- */
-
-#include "setup.h"
-
-#include <sys/types.h>
-#include <sys/time.h>
-#include <sys/socket.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <unistd.h>
-#include <fcntl.h>
-
-#ifdef HAVE_LIBZ
-#include <zlib.h>
-#endif
-
-#include "servlink.h"
-#include "io.h"
-#include "control.h"
-
-static void usage(void);
-
-struct slink_state in_state;
-struct slink_state out_state;
-
-struct fd_table fds[3] = {
-	{0, read_ctrl, NULL}, 	/* ctrl */
-	{0, NULL, NULL}, 	/* data */
-	{0, NULL, NULL},	/* net */
-};
-
-/* usage();
- *
- * Display usage message
- */
-static void
-usage(void)
-{
-	fprintf(stderr, "ircd-ratbox server link v1.2\n");
-	fprintf(stderr, "2004-03-02\n");
-	fprintf(stderr, "\n");
-	fprintf(stderr, "This program is called by the ircd-ratbox ircd.\n");
-	fprintf(stderr, "It cannot be used on its own.\n");
-	exit(1);
-}
-
-int
-main(int argc, char *argv[])
-{
-	int max_fd = 0;
-	int i, x;
-#ifdef SERVLINK_DEBUG
-	int GDBAttached = 0;
-
-	while (!GDBAttached)
-		sleep(1);
-#endif
-
-	/* Make sure we are running under ircd.. */
-	
-	if(argc != 4 || strcmp(argv[0], "-slink"))
-		usage();	/* exits */
-
-
-	for (i = 0; i < 3; i++)
-	{
-		fds[i].fd = atoi(argv[i + 1]);
-		if(fds[i].fd < 0)
-			exit(1);
-	}
-
-	for (i = 0; i < 3; i++)
-	{		
-		/* XXX: Hack alert...we need to do dup2() here for some dumb
-		 * platforms (Solaris) that don't like select using fds > 255
-		 */
-
-		if(fds[i].fd >= 255)
-		{
-			for(x = 0; x < 255; x++)
-			{
-				if(x != fds[0].fd && x != fds[1].fd && x != fds[2].fd)
-				{
-					if(dup2(fds[i].fd, x) < 0)
-						exit(1);
-					close(fds[i].fd);
-					fds[i].fd = x;
-					break;
-				}
-			}
-		}		
-		fcntl(fds[i].fd, F_SETFL, O_NONBLOCK);
-		if(fds[i].fd > max_fd)
-			max_fd = fds[i].fd;
-	}
-	
-	/* enter io loop */
-	io_loop(max_fd + 1);
-
-	/* NOTREACHED */
-	return (0);
-}				/* main() */
diff --git a/servlink/servlink.h b/servlink/servlink.h
deleted file mode 100644
index a0f37dea..00000000
--- a/servlink/servlink.h
+++ /dev/null
@@ -1,83 +0,0 @@
-/************************************************************************
- *   IRC - Internet Relay Chat, servlink/servlink.h
- *
- *   This program is free software; you can redistribute it and/or modify
- *   it under the terms of the GNU General Public License as published by
- *   the Free Software Foundation; either version 1, or (at your option)
- *   any later version.
- *
- *   This program is distributed in the hope that it will be useful,
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *   GNU General Public License for more details.
- *
- *   You should have received a copy of the GNU General Public License
- *   along with this program; if not, write to the Free Software
- *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- *   $Id: servlink.h 1285 2006-05-05 15:03:53Z nenolod $
- */
-
-#ifndef INCLUDED_servlink_servlink_h
-#define INCLUDED_servlink_servlink_h
-
-#include "setup.h"
-
-#ifdef HAVE_LIBZ
-#include <zlib.h>
-#endif
-
-/* do not use stdin/out/err, as it seems to break on solaris */
-#define CONTROL               fds[0]
-#define LOCAL                 fds[1]
-#define REMOTE                 fds[2]
-
-#undef  SERVLINK_DEBUG
-
-#define READLEN                  16384
-
-#ifdef HAVE_LIBZ
-#define BUFLEN                   READLEN * 6	/* allow for decompression */
-#else
-#define BUFLEN                   READLEN
-#endif
-
-
-#ifdef HAVE_LIBZ
-struct zip_state
-{
-	z_stream z_stream;
-	int level;		/* compression level */
-};
-#endif
-
-struct slink_state
-{
-	unsigned int crypt:1;
-	unsigned int zip:1;
-	unsigned int active:1;
-
-	unsigned char buf[BUFLEN * 2];
-	unsigned int ofs;
-	unsigned int len;
-
-#ifdef HAVE_LIBZ
-	struct zip_state zip_state;
-#endif
-};
-
-
-typedef void (io_callback) (void);
-
-struct fd_table
-{
-	int fd;
-	io_callback *read_cb;
-	io_callback *write_cb;
-};
-
-extern struct slink_state in_state;
-extern struct slink_state out_state;
-extern struct fd_table fds[3];
-
-#endif /* INCLUDED_servlink_servlink_h */
diff --git a/ssld/Makefile.am b/ssld/Makefile.am
new file mode 100644
index 00000000..f6aeb4c7
--- /dev/null
+++ b/ssld/Makefile.am
@@ -0,0 +1,14 @@
+#
+# $Id: Makefile.am 24818 2008-01-02 18:38:26Z androsyn $
+#
+bin_PROGRAMS = ssld
+AM_CFLAGS=$(WARNFLAGS)
+
+INCLUDES = -I../include -I../libratbox/include 
+
+
+ssld_SOURCES = ssld.c
+
+ssld_LDADD = ../libratbox/src/libratbox.la @ZLIB_LD@
+
+
diff --git a/ssld/Makefile.in b/ssld/Makefile.in
new file mode 100644
index 00000000..7504608c
--- /dev/null
+++ b/ssld/Makefile.in
@@ -0,0 +1,499 @@
+# Makefile.in generated by automake 1.10.1 from Makefile.am.
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+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
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+	  $(AUTOMAKE) --gnu  ssld/Makefile
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+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
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+	    || cp -p $$d/$$file $(distdir)/$$file \
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+	$(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	  install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	  `test -z '$(STRIP)' || \
+	    echo "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'"` install
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
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+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
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+clean-am: clean-binPROGRAMS clean-generic clean-libtool mostlyclean-am
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+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/ssld/ssld.c b/ssld/ssld.c
new file mode 100644
index 00000000..238201cb
--- /dev/null
+++ b/ssld/ssld.c
@@ -0,0 +1,1096 @@
+/*
+ *  ssld.c: The ircd-ratbox ssl/zlib helper daemon thingy
+ *  Copyright (C) 2007 Aaron Sethman <androsyn@ratbox.org>
+ *  Copyright (C) 2007 ircd-ratbox development team
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301
+ *  USA
+ *
+ *  $Id: ssld.c 25179 2008-03-30 16:34:57Z androsyn $
+ */
+
+
+#include "stdinc.h"
+
+#ifdef HAVE_ZLIB
+#include <zlib.h>
+#endif
+
+#define MAXPASSFD 4
+#ifndef READBUF_SIZE
+#define READBUF_SIZE 16384
+#endif
+
+static void setup_signals(void);
+
+static inline rb_int32_t buf_to_int32(char *buf)
+{
+	rb_int32_t x;
+	x = *buf << 24;
+	x |= *(++buf) << 16;
+	x |= *(++buf) << 8;
+	x |= *(++buf);
+	return x;
+}
+
+static inline void int32_to_buf(char *buf, rb_int32_t x)
+{
+	*(buf)   = x >> 24 & 0xFF;
+	*(++buf) = x >> 16 & 0xFF; 
+	*(++buf) = x >> 8 & 0xFF;
+	*(++buf) = x & 0xFF;
+	return;
+}
+
+static inline rb_uint16_t buf_to_uint16(char *buf)
+{
+	rb_uint16_t x;
+	x = *(buf) << 8;
+	x |= *(++buf);
+	return x;
+}
+
+static inline void uint16_to_buf(char *buf, rb_uint16_t x)
+{
+	*(buf) = x >> 8 & 0xFF;
+	*(++buf) = x & 0xFF;
+	return;
+}
+ 
+
+
+static char inbuf[READBUF_SIZE];
+static char outbuf[READBUF_SIZE];
+
+typedef struct _mod_ctl_buf
+{
+	rb_dlink_node node;
+	char *buf;
+	size_t buflen;
+	rb_fde_t *F[MAXPASSFD];
+	int nfds;
+} mod_ctl_buf_t;
+
+typedef struct _mod_ctl
+{
+	rb_dlink_node node;
+	int cli_count;
+	rb_fde_t *F;
+	rb_fde_t *F_pipe;
+	rb_dlink_list readq;
+	rb_dlink_list writeq;
+} mod_ctl_t;
+
+static mod_ctl_t *mod_ctl;
+
+
+#ifdef HAVE_ZLIB
+typedef struct _zlib_stream
+{
+	z_stream instream;
+	z_stream outstream;
+} zlib_stream_t;
+#endif
+
+typedef struct _conn
+{
+	rb_dlink_node node;
+	mod_ctl_t *ctl;
+	rawbuf_head_t *modbuf_out;
+	rawbuf_head_t *plainbuf_out;
+
+	rb_int32_t id;
+
+	rb_fde_t *mod_fd;
+	rb_fde_t *plain_fd;
+	unsigned long long mod_out;
+	unsigned long long mod_in;
+	unsigned long long plain_in;
+	unsigned long long plain_out;
+	rb_uint8_t flags;
+	void *stream;
+} conn_t;
+
+#define FLAG_SSL	0x01
+#define FLAG_ZIP	0x02
+#define FLAG_CORK	0x04
+#define FLAG_DEAD	0x08
+
+
+#define IsSSL(x) ((x)->flags & FLAG_SSL)
+#define IsZip(x) ((x)->flags & FLAG_ZIP)
+#define IsCork(x) ((x)->flags & FLAG_CORK)
+#define IsDead(x) ((x)->flags & FLAG_DEAD)
+
+#define SetSSL(x) ((x)->flags |= FLAG_SSL)
+#define SetZip(x) ((x)->flags |= FLAG_ZIP)
+#define SetCork(x) ((x)->flags |= FLAG_CORK)
+#define SetDead(x) ((x)->flags |= FLAG_DEAD)
+
+#define ClearSSL(x) ((x)->flags &= ~FLAG_SSL)
+#define ClearZip(x) ((x)->flags &= ~FLAG_ZIP)
+#define ClearCork(x) ((x)->flags &= ~FLAG_CORK)
+#define ClearDead(x) ((x)->flags &= ~FLAG_DEAD)
+
+#define NO_WAIT 0x0
+#define WAIT_PLAIN 0x1
+
+#define CONN_HASH_SIZE 2000
+#define connid_hash(x)	(&connid_hash_table[(x % CONN_HASH_SIZE)])
+
+static rb_dlink_list connid_hash_table[CONN_HASH_SIZE];
+static rb_dlink_list dead_list;
+
+static void conn_mod_write_sendq(rb_fde_t *, void *data);
+static void conn_plain_write_sendq(rb_fde_t *, void *data);
+static void mod_write_ctl(rb_fde_t *, void *data);
+static void conn_plain_read_cb(rb_fde_t * fd, void *data);
+static void mod_cmd_write_queue(mod_ctl_t *ctl, const void *data, size_t len);
+static const char *remote_closed = "Remote host closed the connection";
+static int ssl_ok;
+#ifdef HAVE_ZLIB
+static int zlib_ok = 1;
+#else
+static int zlib_ok = 0;
+#endif
+static void *
+ssld_alloc(void *unused, size_t count, size_t size)
+{
+	return rb_malloc(count * size);
+}
+
+static void
+ssld_free(void *unused, void *ptr)
+{
+	rb_free(ptr);	
+}
+
+static conn_t *
+conn_find_by_id(rb_int32_t id)
+{
+	rb_dlink_node *ptr;
+	conn_t *conn;
+
+	RB_DLINK_FOREACH(ptr, (connid_hash(id))->head)
+	{
+		conn = ptr->data;
+		if(conn->id == id && !IsDead(conn))
+			return conn;
+	}
+	return NULL;
+}
+
+static void
+conn_add_id_hash(conn_t * conn, rb_int32_t id)
+{
+	conn->id = id;
+	rb_dlinkAdd(conn, &conn->node, connid_hash(id));
+}
+
+static void
+free_conn(conn_t * conn)
+{
+	rb_free_rawbuffer(conn->modbuf_out);
+	rb_free_rawbuffer(conn->plainbuf_out);
+	if(IsZip(conn))
+	{
+		zlib_stream_t *stream = conn->stream;
+		inflateEnd(&stream->instream);
+		deflateEnd(&stream->outstream);		
+	}
+	rb_free(conn);
+}
+
+static void
+clean_dead_conns(void *unused)
+{
+	conn_t *conn;
+	rb_dlink_node *ptr, *next;
+	RB_DLINK_FOREACH_SAFE(ptr, next, dead_list.head)
+	{
+		conn = ptr->data;
+		free_conn(conn);
+	}
+	dead_list.tail = dead_list.head = NULL;
+}
+
+
+static void
+close_conn(conn_t * conn, int wait_plain, const char *fmt, ...)
+{
+	va_list ap;
+	char reason[128]; /* must always be under 250 bytes */
+	char buf[256];
+	int len;
+	if(IsDead(conn))
+		return;
+	
+	rb_rawbuf_flush(conn->modbuf_out, conn->mod_fd);
+	rb_rawbuf_flush(conn->plainbuf_out, conn->plain_fd);
+	rb_close(conn->mod_fd);
+	SetDead(conn);
+
+	if(!wait_plain || fmt == NULL)
+	{
+		rb_close(conn->plain_fd);
+	
+		if(conn->id >= 0)
+			rb_dlinkDelete(&conn->node, connid_hash(conn->id));
+		rb_dlinkAdd(conn, &conn->node, &dead_list);
+		return;
+	}
+	rb_setselect(conn->plain_fd, RB_SELECT_WRITE|RB_SELECT_READ, NULL, NULL);
+	va_start(ap, fmt);
+	rb_vsnprintf(reason, sizeof(reason), fmt, ap);
+	va_end(ap);
+
+	buf[0] = 'D';
+	int32_to_buf(&buf[1], conn->id);
+	strcpy(&buf[5], reason);
+	len = (strlen(reason) + 1) + 5;
+	mod_cmd_write_queue(conn->ctl, buf, len);
+}
+
+static conn_t *
+make_conn(mod_ctl_t *ctl, rb_fde_t * mod_fd, rb_fde_t * plain_fd)
+{
+	conn_t *conn = rb_malloc(sizeof(conn_t));
+	conn->ctl = ctl;
+	conn->modbuf_out = rb_new_rawbuffer();
+	conn->plainbuf_out = rb_new_rawbuffer();
+	conn->mod_fd = mod_fd;
+	conn->plain_fd = plain_fd;
+	conn->id = -1;
+	conn->stream = NULL;
+	rb_set_nb(mod_fd);
+	rb_set_nb(plain_fd);
+	return conn;
+}
+
+static void
+conn_mod_write_sendq(rb_fde_t * fd, void *data)
+{
+	conn_t *conn = data;
+	const char *err;
+	int retlen;
+	if(IsDead(conn))
+		return;
+
+	while ((retlen = rb_rawbuf_flush(conn->modbuf_out, fd)) > 0)
+		conn->mod_out += retlen;
+
+	if(retlen == 0 || (retlen < 0 && !rb_ignore_errno(errno)))
+	{
+		if(retlen == 0)
+			close_conn(conn, WAIT_PLAIN, "%s", remote_closed);
+		if(IsSSL(conn) && retlen == RB_RW_SSL_ERROR)
+			err = rb_get_ssl_strerror(conn->mod_fd);
+		else
+			err = strerror(errno);
+		close_conn(conn, WAIT_PLAIN, "Write error: %s", err);
+		return;
+	}
+	if(rb_rawbuf_length(conn->modbuf_out) > 0)
+	{
+		int flags = RB_SELECT_WRITE;
+		if(retlen == RB_RW_SSL_NEED_READ)
+			flags |= RB_SELECT_READ;
+
+		rb_setselect(conn->mod_fd, flags, conn_mod_write_sendq, conn);
+	}
+	else
+		rb_setselect(conn->mod_fd, RB_SELECT_WRITE, NULL, NULL);
+
+	if(IsCork(conn) && rb_rawbuf_length(conn->modbuf_out) == 0)
+	{
+		ClearCork(conn);
+		conn_plain_read_cb(conn->plain_fd, conn);
+	}
+
+}
+
+static void
+conn_mod_write(conn_t * conn, void *data, size_t len)
+{
+	if(IsDead(conn))	/* no point in queueing to a dead man */
+		return;
+	rb_rawbuf_append(conn->modbuf_out, data, len);
+}
+
+static void
+conn_plain_write(conn_t * conn, void *data, size_t len)
+{
+	if(IsDead(conn))	/* again no point in queueing to dead men */
+		return;
+	rb_rawbuf_append(conn->plainbuf_out, data, len);
+}
+
+static void
+mod_cmd_write_queue(mod_ctl_t * ctl, const void *data, size_t len)
+{
+	mod_ctl_buf_t *ctl_buf;
+	ctl_buf = rb_malloc(sizeof(mod_ctl_buf_t));
+	ctl_buf->buf = rb_malloc(len);
+	ctl_buf->buflen = len;
+	memcpy(ctl_buf->buf, data, len);
+	ctl_buf->nfds = 0;
+	rb_dlinkAddTail(ctl_buf, &ctl_buf->node, &ctl->writeq);
+	mod_write_ctl(ctl->F, ctl);
+}
+
+#ifdef HAVE_ZLIB
+static void
+common_zlib_deflate(conn_t * conn, void *buf, size_t len)
+{
+	int ret, have;
+	z_stream *outstream = &((zlib_stream_t *)conn->stream)->outstream;
+	outstream->next_in = buf;
+	outstream->avail_in = len;
+	outstream->next_out = (Bytef *) outbuf;
+	outstream->avail_out = sizeof(outbuf);
+
+	ret = deflate(outstream, Z_SYNC_FLUSH);
+	if(ret != Z_OK)
+	{
+		/* deflate error */
+		close_conn(conn, WAIT_PLAIN, "Deflate failed: %s", zError(ret));
+		return;
+	}
+	if(outstream->avail_out == 0)
+	{
+		/* avail_out empty */
+		close_conn(conn, WAIT_PLAIN, "error compressing data, avail_out == 0");
+		return;
+	}
+	if(outstream->avail_in != 0)
+	{
+		/* avail_in isn't empty...*/
+		close_conn(conn, WAIT_PLAIN, "error compressing data, avail_in != 0");
+		return;
+	}
+	have = sizeof(outbuf) - outstream->avail_out;
+	conn_mod_write(conn, outbuf, have);
+}
+
+static void
+common_zlib_inflate(conn_t * conn, void *buf, size_t len)
+{
+	int ret, have;
+	((zlib_stream_t *)conn->stream)->instream.next_in = buf;
+	((zlib_stream_t *)conn->stream)->instream.avail_in = len;
+	((zlib_stream_t *)conn->stream)->instream.next_out = (Bytef *) outbuf;
+	((zlib_stream_t *)conn->stream)->instream.avail_out = sizeof(outbuf);
+
+	while (((zlib_stream_t *)conn->stream)->instream.avail_in)
+	{
+		ret = inflate(&((zlib_stream_t *)conn->stream)->instream, Z_NO_FLUSH);
+		if(ret != Z_OK)
+		{
+			if(!strncmp("ERROR ", buf, 6))
+			{
+				close_conn(conn, WAIT_PLAIN, "Received uncompressed ERROR");
+				return;
+			}
+			close_conn(conn, WAIT_PLAIN, "Inflate failed: %s", zError(ret));
+			return;
+		}
+		have = sizeof(outbuf) - ((zlib_stream_t *)conn->stream)->instream.avail_out;
+
+		if(((zlib_stream_t *)conn->stream)->instream.avail_in)
+		{
+			conn_plain_write(conn, outbuf, have);
+			have = 0;
+			((zlib_stream_t *)conn->stream)->instream.next_out = (Bytef *) outbuf;
+			((zlib_stream_t *)conn->stream)->instream.avail_out = sizeof(outbuf);
+		}
+	}
+	if(have == 0)
+		return;
+
+	conn_plain_write(conn, outbuf, have);
+}
+#endif
+
+static int
+plain_check_cork(conn_t * conn)
+{
+	if(rb_rawbuf_length(conn->modbuf_out) >= 4096)
+	{
+		/* if we have over 4k pending outbound, don't read until 
+		 * we've cleared the queue */
+		SetCork(conn);
+		rb_setselect(conn->plain_fd, RB_SELECT_READ, NULL, NULL);
+		/* try to write */
+		conn_mod_write_sendq(conn->mod_fd, conn);
+		return 1;
+	}
+	return 0;
+}
+
+
+static void
+conn_plain_read_cb(rb_fde_t * fd, void *data)
+{
+	conn_t *conn = data;
+	int length = 0;
+	if(conn == NULL)
+		return;
+
+	if(IsDead(conn))
+		return;
+
+	if(plain_check_cork(conn))
+		return;
+
+	while (1)
+	{
+		if(IsDead(conn))
+			return;
+
+		length = rb_read(conn->plain_fd, inbuf, sizeof(inbuf));
+
+		if(length == 0 || (length < 0 && !rb_ignore_errno(errno)))
+		{
+			close_conn(conn, NO_WAIT, NULL);
+			return;
+		}
+
+		if(length < 0)
+		{
+			rb_setselect(conn->plain_fd, RB_SELECT_READ, conn_plain_read_cb, conn);
+			conn_mod_write_sendq(conn->mod_fd, conn);
+			return;
+		}
+		conn->plain_in += length;
+
+#ifdef HAVE_ZLIB
+		if(IsZip(conn))
+			common_zlib_deflate(conn, inbuf, length);
+		else
+#endif
+			conn_mod_write(conn, inbuf, length);
+		if(IsDead(conn))
+			return;
+		if(plain_check_cork(conn))
+			return;
+	}
+}
+
+static void
+conn_mod_read_cb(rb_fde_t * fd, void *data)
+{
+	conn_t *conn = data;
+	const char *err = remote_closed;
+	int length;
+	if(conn == NULL)
+		return;
+	if(IsDead(conn))
+		return;
+
+	while (1)
+	{
+		if(IsDead(conn))
+			return;
+
+		length = rb_read(conn->mod_fd, inbuf, sizeof(inbuf));
+
+		if(length == 0 || (length < 0 && !rb_ignore_errno(errno)))
+		{
+			if(length == 0) {
+				close_conn(conn, WAIT_PLAIN, "%s", remote_closed);
+				return;
+			}
+
+			if(IsSSL(conn) && length == RB_RW_SSL_ERROR)
+				err = rb_get_ssl_strerror(conn->mod_fd);
+			else
+				err = strerror(errno);
+			close_conn(conn, WAIT_PLAIN, "Read error: %s", err);
+			return;
+		}
+		if(length < 0)
+		{
+			int flags = RB_SELECT_READ;
+			if(length == RB_RW_SSL_NEED_WRITE)
+				flags |= RB_SELECT_WRITE;
+				
+			rb_setselect(conn->mod_fd, flags, conn_mod_read_cb, conn);
+			conn_plain_write_sendq(conn->plain_fd, conn);
+			return;
+		}	
+		conn->mod_in += length;
+#ifdef HAVE_ZLIB
+		if(IsZip(conn))
+			common_zlib_inflate(conn, inbuf, length);
+		else
+#endif
+			conn_plain_write(conn, inbuf, length);
+	}
+}
+
+static void
+conn_plain_write_sendq(rb_fde_t * fd, void *data)
+{
+	conn_t *conn = data;
+	int retlen;
+
+	if(IsDead(conn))
+		return;
+
+	while ((retlen = rb_rawbuf_flush(conn->plainbuf_out, fd)) > 0)
+	{
+		conn->plain_out += retlen;
+	}
+	if(retlen == 0 || (retlen < 0 && !rb_ignore_errno(errno)))
+	{
+		close_conn(data, NO_WAIT, NULL);
+		return;
+	}
+	
+
+	if(rb_rawbuf_length(conn->plainbuf_out) > 0)
+		rb_setselect(conn->plain_fd, RB_SELECT_WRITE, conn_plain_write_sendq, conn);
+	else
+		rb_setselect(conn->plain_fd, RB_SELECT_WRITE, NULL, NULL);
+}
+
+static int
+maxconn(void)
+{
+#if defined(RLIMIT_NOFILE) && defined(HAVE_SYS_RESOURCE_H)
+	struct rlimit limit;
+
+	if(!getrlimit(RLIMIT_NOFILE, &limit))
+	{
+		return limit.rlim_cur;
+	}
+#endif /* RLIMIT_FD_MAX */
+	return MAXCONNECTIONS;
+}
+
+static void
+ssl_process_accept_cb(rb_fde_t * F, int status, struct sockaddr *addr, rb_socklen_t len, void *data)
+{
+	conn_t *conn = data;
+	if(status == RB_OK)
+	{
+		conn_mod_read_cb(conn->mod_fd, conn);
+		conn_plain_read_cb(conn->plain_fd, conn);
+		return;
+	}
+	close_conn(conn, NO_WAIT, 0);
+	return;
+}
+
+static void
+ssl_process_connect_cb(rb_fde_t * F, int status, void *data)
+{
+	conn_t *conn = data;
+	if(status == RB_OK)
+	{
+		conn_mod_read_cb(conn->mod_fd, conn);
+		conn_plain_read_cb(conn->plain_fd, conn);
+		return;
+	}
+	close_conn(conn, NO_WAIT, 0);
+	return;
+}
+
+
+static void
+ssl_process_accept(mod_ctl_t * ctl, mod_ctl_buf_t * ctlb)
+{
+	conn_t *conn;
+	rb_int32_t id;
+
+	conn = make_conn(ctl, ctlb->F[0], ctlb->F[1]);
+
+	id = buf_to_int32(&ctlb->buf[1]);
+
+	if(id >= 0)
+		conn_add_id_hash(conn, id);
+	SetSSL(conn);
+
+	if(rb_get_type(conn->mod_fd) & RB_FD_UNKNOWN)
+	{
+		
+		rb_set_type(conn->mod_fd, RB_FD_SOCKET);
+	}
+	if(rb_get_type(conn->mod_fd) == RB_FD_UNKNOWN)
+		rb_set_type(conn->plain_fd, RB_FD_SOCKET);
+
+	rb_ssl_start_accepted(ctlb->F[0], ssl_process_accept_cb, conn, 10);
+}
+
+static void
+ssl_process_connect(mod_ctl_t * ctl, mod_ctl_buf_t * ctlb)
+{
+	conn_t *conn;
+	rb_int32_t id;
+	conn = make_conn(ctl, ctlb->F[0], ctlb->F[1]);
+
+	id = buf_to_int32(&ctlb->buf[1]);
+
+	if(id >= 0)
+		conn_add_id_hash(conn, id);
+	SetSSL(conn);
+
+	if(rb_get_type(conn->mod_fd) == RB_FD_UNKNOWN)
+		rb_set_type(conn->mod_fd, RB_FD_SOCKET);
+
+	if(rb_get_type(conn->mod_fd) == RB_FD_UNKNOWN)
+		rb_set_type(conn->plain_fd, RB_FD_SOCKET);
+
+
+	rb_ssl_start_connected(ctlb->F[0], ssl_process_connect_cb, conn, 10);
+}
+
+static void
+process_stats(mod_ctl_t * ctl, mod_ctl_buf_t * ctlb)
+{
+	char outstat[512];
+	conn_t *conn;
+	const char *odata;
+	rb_int32_t id;
+
+	id = buf_to_int32(&ctlb->buf[1]);
+
+	if(id < 0)
+		return;
+	
+	odata = &ctlb->buf[5];
+	conn = conn_find_by_id(id);
+
+	if(conn == NULL)
+		return;
+
+	rb_snprintf(outstat, sizeof(outstat), "S %s %llu %llu %llu %llu", odata,
+		    conn->plain_out, conn->mod_in, conn->plain_in, conn->mod_out);
+	conn->plain_out = 0;
+	conn->plain_in = 0;
+	conn->mod_in = 0;
+	conn->mod_out = 0;
+	mod_cmd_write_queue(ctl, outstat, strlen(outstat) + 1);	/* +1 is so we send the \0 as well */
+}
+
+#ifdef HAVE_ZLIB
+static void
+zlib_send_zip_ready(mod_ctl_t *ctl, conn_t *conn)
+{
+	char buf[5];
+	
+	buf[0] = 'R';
+	int32_to_buf(&buf[1], conn->id);
+	mod_cmd_write_queue(conn->ctl, buf, sizeof(buf));
+}
+
+static void
+zlib_process(mod_ctl_t * ctl, mod_ctl_buf_t * ctlb)
+{
+	rb_uint8_t level;
+	size_t recvqlen;
+	size_t hdr = (sizeof(rb_uint8_t) * 2) + sizeof(rb_int32_t);
+	void *recvq_start;
+	z_stream *instream, *outstream;
+	conn_t *conn;
+	rb_int32_t id;
+
+	conn = make_conn(ctl, ctlb->F[0], ctlb->F[1]);
+	if(rb_get_type(conn->mod_fd) == RB_FD_UNKNOWN)
+		rb_set_type(conn->mod_fd, RB_FD_SOCKET);
+
+	if(rb_get_type(conn->plain_fd) == RB_FD_UNKNOWN)
+		rb_set_type(conn->plain_fd, RB_FD_SOCKET);
+
+	id = buf_to_int32(&ctlb->buf[1]);
+	conn_add_id_hash(conn, id);
+
+	level = (rb_uint8_t) ctlb->buf[5];
+
+	recvqlen = ctlb->buflen - hdr;
+	recvq_start = &ctlb->buf[6];
+
+	SetZip(conn);
+	conn->stream = rb_malloc(sizeof(zlib_stream_t));
+	instream = &((zlib_stream_t *)conn->stream)->instream;
+	outstream = &((zlib_stream_t *)conn->stream)->outstream;
+	
+	instream->total_in = 0;
+	instream->total_out = 0;
+	instream->zalloc = (alloc_func) ssld_alloc;
+	instream->zfree = (free_func) ssld_free;
+	instream->data_type = Z_ASCII;
+	inflateInit(&((zlib_stream_t *)conn->stream)->instream);
+
+	outstream->total_in = 0;
+	outstream->total_out = 0;
+	outstream->zalloc = (alloc_func) ssld_alloc;
+	outstream->zfree = (free_func) ssld_free;
+	outstream->data_type = Z_ASCII;
+
+	if(level > 9)
+		level = Z_DEFAULT_COMPRESSION;
+
+	deflateInit(&((zlib_stream_t *)conn->stream)->outstream, level);
+	if(recvqlen > 0)
+		common_zlib_inflate(conn, recvq_start, recvqlen);
+	zlib_send_zip_ready(ctl, conn);
+	conn_mod_read_cb(conn->mod_fd, conn);
+	conn_plain_read_cb(conn->plain_fd, conn);
+	return;
+
+}
+#endif
+
+static void
+init_prng(mod_ctl_t * ctl, mod_ctl_buf_t * ctl_buf)
+{
+	char *path;
+	prng_seed_t seed_type;
+	
+	seed_type = (prng_seed_t)ctl_buf->buf[1];	
+	path = &ctl_buf->buf[2];
+	rb_init_prng(path, seed_type);
+}
+
+
+static void
+ssl_new_keys(mod_ctl_t * ctl, mod_ctl_buf_t * ctl_buf)
+{
+	char *buf;
+	char *cert, *key, *dhparam;
+
+	buf = &ctl_buf->buf[2];
+	cert = buf;
+	buf += strlen(cert) + 1;
+	key = buf;
+	buf += strlen(key) + 1;
+	dhparam = buf;
+	if(strlen(dhparam) == 0)
+		dhparam = NULL;
+
+	if(!rb_setup_ssl_server(cert, key, dhparam))
+	{
+		const char *invalid = "I";
+		mod_cmd_write_queue(ctl, invalid, strlen(invalid));
+		return;
+	} 
+}
+
+static void
+send_nossl_support(mod_ctl_t *ctl, mod_ctl_buf_t *ctlb)
+{
+	static const char *nossl_cmd = "N";
+	conn_t *conn;
+	rb_int32_t id;
+
+	if(ctlb != NULL)
+	{	
+		conn = make_conn(ctl, ctlb->F[0], ctlb->F[1]);
+		id = buf_to_int32(&ctlb->buf[1]);
+
+		if(id >= 0)
+			conn_add_id_hash(conn, id);
+		close_conn(conn, WAIT_PLAIN, "libratbox reports no SSL/TLS support");
+	} 
+	mod_cmd_write_queue(ctl, nossl_cmd, strlen(nossl_cmd));	
+}
+
+static void
+send_i_am_useless(mod_ctl_t *ctl)
+{
+	static const char *useless = "U";
+	mod_cmd_write_queue(ctl, useless, strlen(useless));
+}
+
+static void
+send_nozlib_support(mod_ctl_t *ctl, mod_ctl_buf_t *ctlb)
+{
+	static const char *nozlib_cmd = "z";
+	conn_t *conn;
+	rb_int32_t id;
+	if(ctlb != NULL)
+	{
+		conn = make_conn(ctl, ctlb->F[0], ctlb->F[1]);
+		id = buf_to_int32(&ctlb->buf[1]);
+
+		if(id >= 0)
+			conn_add_id_hash(conn, id);
+		close_conn(conn, WAIT_PLAIN, "libratbox reports no zlib support");
+	} 
+	mod_cmd_write_queue(ctl, nozlib_cmd, strlen(nozlib_cmd));
+}
+
+static void
+mod_process_cmd_recv(mod_ctl_t * ctl)
+{
+	rb_dlink_node *ptr, *next;
+	mod_ctl_buf_t *ctl_buf;
+
+	RB_DLINK_FOREACH_SAFE(ptr, next, ctl->readq.head)
+	{
+		ctl_buf = ptr->data;
+
+		switch (*ctl_buf->buf)
+		{
+		case 'A':
+			{
+				if(!ssl_ok)
+				{
+					send_nossl_support(ctl, ctl_buf);
+					break;
+				}
+				ssl_process_accept(ctl, ctl_buf);
+				break;
+			}
+		case 'C':
+			{
+				if(!ssl_ok)
+				{
+					send_nossl_support(ctl, ctl_buf);
+					break;
+				}
+				ssl_process_connect(ctl, ctl_buf);
+				break;
+			}
+
+		case 'K':
+			{
+				if(!ssl_ok)
+				{
+					send_nossl_support(ctl, ctl_buf);
+					break;
+				}
+				ssl_new_keys(ctl, ctl_buf);
+				break;
+			}
+		case 'I':
+				init_prng(ctl, ctl_buf);
+				break;
+		case 'S':
+			{
+				process_stats(ctl, ctl_buf);
+				break;
+			}
+#ifdef HAVE_ZLIB
+		case 'Z':
+			{
+				/* just zlib only */
+				zlib_process(ctl, ctl_buf);
+				break;
+			}
+#else
+		case 'Y':
+		case 'Z':
+			send_nozlib_support(ctl);
+			break;
+			
+#endif
+		default:
+			break;
+			/* Log unknown commands */
+		}
+		rb_dlinkDelete(ptr, &ctl->readq);
+		rb_free(ctl_buf->buf);
+		rb_free(ctl_buf);
+	}
+
+}
+
+
+
+static void
+mod_read_ctl(rb_fde_t * F, void *data)
+{
+	mod_ctl_buf_t *ctl_buf;
+	mod_ctl_t *ctl = data;
+	int retlen;
+
+	do
+	{
+		ctl_buf = rb_malloc(sizeof(mod_ctl_buf_t));
+		ctl_buf->buf = rb_malloc(READBUF_SIZE);
+		ctl_buf->buflen = READBUF_SIZE;
+		retlen = rb_recv_fd_buf(ctl->F, ctl_buf->buf, ctl_buf->buflen, ctl_buf->F,
+					MAXPASSFD);
+		if(retlen <= 0)
+		{
+			rb_free(ctl_buf->buf);
+			rb_free(ctl_buf);
+		}
+		else
+		{
+			ctl_buf->buflen = retlen;
+			rb_dlinkAddTail(ctl_buf, &ctl_buf->node, &ctl->readq);
+		}
+	}
+	while (retlen > 0);
+
+	if(retlen == 0 || (retlen < 0 && !rb_ignore_errno(errno)))
+		exit(0);
+
+	mod_process_cmd_recv(ctl);
+	rb_setselect(ctl->F, RB_SELECT_READ, mod_read_ctl, ctl);
+}
+
+static void
+mod_write_ctl(rb_fde_t * F, void *data)
+{
+	mod_ctl_t *ctl = data;
+	mod_ctl_buf_t *ctl_buf;
+	rb_dlink_node *ptr, *next;
+	int retlen, x;
+
+	RB_DLINK_FOREACH_SAFE(ptr, next, ctl->writeq.head)
+	{
+		ctl_buf = ptr->data;
+		retlen = rb_send_fd_buf(ctl->F, ctl_buf->F, ctl_buf->nfds, ctl_buf->buf,
+					ctl_buf->buflen);
+		if(retlen > 0)
+		{
+			rb_dlinkDelete(ptr, &ctl->writeq);
+			for (x = 0; x < ctl_buf->nfds; x++)
+				rb_close(ctl_buf->F[x]);
+			rb_free(ctl_buf->buf);
+			rb_free(ctl_buf);
+
+		}
+		if(retlen == 0 || (retlen < 0 && !rb_ignore_errno(errno)))
+			exit(0);			
+		
+		rb_setselect(ctl->F, RB_SELECT_WRITE, mod_write_ctl, ctl);
+	}
+}
+
+
+static void
+read_pipe_ctl(rb_fde_t * F, void *data)
+{
+	int retlen;
+	while ((retlen = rb_read(F, inbuf, sizeof(inbuf))) > 0)
+	{
+		;;		/* we don't do anything with the pipe really, just care if the other process dies.. */
+	}
+	if(retlen == 0 || (retlen < 0 && !rb_ignore_errno(errno)))
+		exit(0);
+	rb_setselect(F, RB_SELECT_READ, read_pipe_ctl, NULL);
+
+}
+
+int
+main(int argc, char **argv)
+{
+	const char *s_ctlfd, *s_pipe;
+	int ctlfd, pipefd, x, maxfd;
+	maxfd = maxconn();
+	s_ctlfd = getenv("CTL_FD");
+	s_pipe = getenv("CTL_PIPE");
+
+	if(s_ctlfd == NULL || s_pipe == NULL)
+	{
+		fprintf(stderr, "This is ircd-ratbox ssld.  You know you aren't supposed to run me directly?\n");
+		fprintf(stderr, "You get an Id tag for this: $Id: ssld.c 25179 2008-03-30 16:34:57Z androsyn $\n");
+		fprintf(stderr, "Have a nice life\n");
+		exit(1);
+	}
+
+	ctlfd = atoi(s_ctlfd);
+	pipefd = atoi(s_pipe);
+
+	for (x = 0; x < maxfd; x++)
+	{
+		if(x != ctlfd && x != pipefd && x > 2)
+			close(x);
+	}
+
+#if 0
+	x = open("/dev/null", O_RDWR);
+	if(x >= 0)
+	{
+		if(ctlfd != 0 && pipefd != 0)
+			dup2(x, 0);
+		if(ctlfd != 1 && pipefd != 1)
+			dup2(x, 1);
+		if(ctlfd != 2 && pipefd != 2)
+			dup2(x, 2);
+		if(x > 2)
+			close(x);
+	}
+#endif
+	setup_signals();
+	rb_lib_init(NULL, NULL, NULL, 0, maxfd, 1024, 4096);
+	rb_init_rawbuffers(1024);
+	ssl_ok = rb_supports_ssl();		
+
+	mod_ctl = rb_malloc(sizeof(mod_ctl_t));
+	mod_ctl->F = rb_open(ctlfd, RB_FD_SOCKET, "ircd control socket");
+	mod_ctl->F_pipe = rb_open(pipefd, RB_FD_PIPE, "ircd pipe");
+	rb_set_nb(mod_ctl->F);
+	rb_set_nb(mod_ctl->F_pipe);
+	rb_event_addish("clean_dead_conns", clean_dead_conns, NULL, 10);
+	read_pipe_ctl(mod_ctl->F_pipe, NULL);
+	mod_read_ctl(mod_ctl->F, mod_ctl);
+	if(!zlib_ok && !ssl_ok)
+	{
+		/* this is really useless... */
+		send_i_am_useless(mod_ctl);
+		/* sleep until the ircd kills us */
+		rb_sleep(2<<30, 0);
+		exit(1);
+	}
+
+	if(!zlib_ok)
+		send_nozlib_support(mod_ctl, NULL);
+	if(!ssl_ok)
+		send_nossl_support(mod_ctl, NULL);
+	rb_lib_loop(0);
+	return 0;
+}
+
+
+
+static void
+dummy_handler(int sig)
+{
+	return;
+}
+
+static void
+setup_signals()
+{
+	struct sigaction act;
+
+	act.sa_flags = 0;
+	act.sa_handler = SIG_IGN;
+	sigemptyset(&act.sa_mask);
+	sigaddset(&act.sa_mask, SIGPIPE);
+	sigaddset(&act.sa_mask, SIGALRM);
+#ifdef SIGTRAP
+	sigaddset(&act.sa_mask, SIGTRAP);
+#endif
+
+#ifdef SIGWINCH
+	sigaddset(&act.sa_mask, SIGWINCH);
+	sigaction(SIGWINCH, &act, 0);
+#endif
+	sigaction(SIGPIPE, &act, 0);
+#ifdef SIGTRAP
+	sigaction(SIGTRAP, &act, 0);
+#endif
+
+	act.sa_handler = dummy_handler;
+	sigaction(SIGALRM, &act, 0);
+}
+