packages: sort network related packages into package/network/

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@33688 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 0 insertions, 3065 deletions

diff --git a/package/ppp/patches/500-add-pptp-plugin.patch b/package/ppp/patches/500-add-pptp-plugin.patch
deleted file mode 100644
index d984e1b162..0000000000
--- a/package/ppp/patches/500-add-pptp-plugin.patch
+++ /dev/null
@@ -1,3065 +0,0 @@
---- a/configure
-+++ b/configure
-@@ -195,7 +195,7 @@ if [ -d "$ksrc" ]; then
-     mkmkf $ksrc/Makedefs$compiletype Makedefs.com
-     for dir in pppd pppstats chat pppdump pppd/plugins pppd/plugins/rp-pppoe \
- 	       pppd/plugins/radius pppd/plugins/pppoatm \
--	       pppd/plugins/pppol2tp; do
-+	       pppd/plugins/pppol2tp pppd/plugins/pptp ; do
- 	mkmkf $dir/Makefile.$makext $dir/Makefile
-     done
-     if [ -f $ksrc/Makefile.$makext$archvariant ]; then
---- a/pppd/plugins/Makefile.linux
-+++ b/pppd/plugins/Makefile.linux
-@@ -9,7 +9,7 @@ BINDIR = $(DESTDIR)/sbin
- MANDIR = $(DESTDIR)/share/man/man8
- LIBDIR = $(DESTDIR)/lib/pppd/$(VERSION)
- 
--SUBDIRS := rp-pppoe pppoatm pppol2tp
-+SUBDIRS := rp-pppoe pppoatm pppol2tp pptp
- # Uncomment the next line to include the radius authentication plugin
- SUBDIRS += radius
- PLUGINS := minconn.so passprompt.so passwordfd.so winbind.so
---- /dev/null
-+++ b/pppd/plugins/pptp/Makefile.linux
-@@ -0,0 +1,31 @@
-+#
-+# This program may be distributed according to the terms of the GNU
-+# General Public License, version 2 or (at your option) any later version.
-+#
-+# $Id: Makefile.linux,v 1.9 2012/05/04 21:48:00 dgolle Exp $
-+#***********************************************************************
-+
-+DESTDIR = $(INSTROOT)@DESTDIR@
-+LIBDIR = $(DESTDIR)/lib/pppd/$(PPPDVERSION)
-+
-+PPPDVERSION = $(shell awk -F '"' '/VERSION/ { print $$2; }' ../../patchlevel.h)
-+
-+INSTALL	= install
-+
-+COPTS=-O2 -g
-+CFLAGS  = $(COPTS) -I. -I../.. -I../../../include -fPIC -DPPPD_VERSION=\"$(PPPDVERSION)\"
-+all: pptp.so
-+
-+%.o: %.c
-+	$(CC) $(CFLAGS) -c -o $@ $<
-+
-+pptp.so: dirutil.o orckit_quirks.o pptp.o pptp_callmgr.o pptp_ctrl.o pptp_quirks.o util.o vector.o
-+	$(CC) -o pptp.so -shared dirutil.o orckit_quirks.o pptp.o pptp_callmgr.o pptp_ctrl.o pptp_quirks.o util.o vector.o
-+
-+install: all
-+	$(INSTALL) -d -m 755 $(LIBDIR)
-+	$(INSTALL) -c -m 4550 pptp.so $(LIBDIR)
-+
-+clean:
-+	rm -f *.o *.so
-+
---- /dev/null
-+++ b/pppd/plugins/pptp/dirutil.c
-@@ -0,0 +1,68 @@
-+/* dirutil.c ... directory utilities.
-+ *               C. Scott Ananian <cananian@alumni.princeton.edu>
-+ *
-+ * $Id: dirutil.c,v 1.2 2003/06/17 17:25:47 reink Exp $
-+ */
-+
-+#include <sys/stat.h>
-+#include <sys/types.h>
-+#include <unistd.h>
-+#include <string.h>
-+#include <stdlib.h>
-+#include "dirutil.h"
-+
-+/* Returned malloc'ed string representing basename */
-+char *basenamex(char *pathname)
-+{
-+    char *dup = strdup(pathname);
-+    char *ptr = strrchr(stripslash(dup), '/');
-+    if (ptr == NULL) return dup;
-+    ptr = strdup(ptr+1);
-+    free(dup);
-+    return ptr;
-+}
-+
-+/* Return malloc'ed string representing directory name (no trailing slash) */
-+char *dirnamex(char *pathname)
-+{
-+    char *dup = strdup(pathname);
-+    char *ptr = strrchr(stripslash(dup), '/');
-+    if (ptr == NULL) { free(dup); return strdup("."); }
-+    if (ptr == dup && dup[0] == '/') ptr++;
-+    *ptr = '\0';
-+    return dup;
-+}
-+
-+/* In-place modify a string to remove trailing slashes.  Returns arg.
-+ * stripslash("/") returns "/";
-+ */
-+char *stripslash(char *pathname) {
-+    int len = strlen(pathname);
-+    while (len > 1 && pathname[len - 1] == '/')
-+        pathname[--len] = '\0';
-+    return pathname;
-+}
-+
-+/* ensure dirname exists, creating it if necessary. */
-+int make_valid_path(char *dir, mode_t mode)
-+{
-+    struct stat st;
-+    char *tmp = NULL, *path = stripslash(strdup(dir));
-+    int retval;
-+    if (stat(path, &st) == 0) { /* file exists */
-+        if (S_ISDIR(st.st_mode)) { retval = 1; goto end; }
-+        else { retval = 0; goto end; } /* not a directory.  Oops. */
-+    }
-+    /* Directory doesn't exist.  Let's make it. */
-+    /*   Make parent first. */
-+    if (!make_valid_path(tmp = dirnamex(path), mode)) { retval = 0; goto end; }
-+    /*   Now make this 'un. */
-+    if (mkdir(path, mode) < 0) { retval = 0; goto end; }
-+    /* Success. */
-+    retval = 1;
-+
-+end:
-+    if (tmp != NULL) free(tmp);
-+    if (path != NULL) free(path);
-+    return retval;
-+}
---- /dev/null
-+++ b/pppd/plugins/pptp/dirutil.h
-@@ -0,0 +1,14 @@
-+/* dirutil.h ... directory utilities.
-+ *               C. Scott Ananian <cananian@alumni.princeton.edu>
-+ *
-+ * $Id: dirutil.h,v 1.1.1.1 2000/12/23 08:19:51 scott Exp $
-+ */
-+
-+/* Returned malloc'ed string representing basename */
-+char *basenamex(char *pathname);
-+/* Return malloc'ed string representing directory name (no trailing slash) */
-+char *dirnamex(char *pathname);
-+/* In-place modify a string to remove trailing slashes.  Returns arg. */
-+char *stripslash(char *pathname);
-+/* ensure dirname exists, creating it if necessary. */
-+int make_valid_path(char *dirname, mode_t mode);
---- /dev/null
-+++ b/pppd/plugins/pptp/orckit_quirks.c
-@@ -0,0 +1,86 @@
-+/* orckit_quirks.c ...... fix quirks in orckit adsl modems
-+ *                        mulix <mulix@actcom.co.il>
-+ *
-+ * $Id: orckit_quirks.c,v 1.3 2002/03/01 01:23:36 quozl Exp $
-+ */
-+
-+#include <string.h>
-+#include <sys/types.h>
-+#include <netinet/in.h>
-+#include "pptp_msg.h"
-+#include "pptp_options.h"
-+#include "pptp_ctrl.h"
-+#include "util.h"
-+
-+
-+
-+/* return 0 on success, non zero otherwise */
-+int
-+orckit_atur3_build_hook(struct pptp_out_call_rqst* packet)
-+{
-+    unsigned int name_length = 10;
-+
-+    struct pptp_out_call_rqst fixed_packet = {
-+	PPTP_HEADER_CTRL(PPTP_OUT_CALL_RQST),
-+	0, /* hton16(call->callid) */
-+	0, /* hton16(call->sernum) */
-+	hton32(PPTP_BPS_MIN), hton32(PPTP_BPS_MAX),
-+	hton32(PPTP_BEARER_DIGITAL), hton32(PPTP_FRAME_ANY),
-+	hton16(PPTP_WINDOW), 0, hton16(name_length), 0,
-+	{'R','E','L','A','Y','_','P','P','P','1',0}, {0}
-+    };
-+
-+    if (!packet)
-+	return -1;
-+
-+    memcpy(packet, &fixed_packet, sizeof(*packet));
-+
-+    return 0;
-+}
-+
-+/* return 0 on success, non zero otherwise */
-+int
-+orckit_atur3_set_link_hook(struct pptp_set_link_info* packet,
-+			   int peer_call_id)
-+{
-+    struct pptp_set_link_info fixed_packet = {
-+	PPTP_HEADER_CTRL(PPTP_SET_LINK_INFO),
-+	hton16(peer_call_id),
-+	0,
-+	0xffffffff,
-+	0xffffffff};
-+
-+    if (!packet)
-+	return -1;
-+
-+    memcpy(packet, &fixed_packet, sizeof(*packet));
-+    return 0;
-+}
-+
-+/* return 0 on success, non 0 otherwise */
-+int
-+orckit_atur3_start_ctrl_conn_hook(struct pptp_start_ctrl_conn* packet)
-+{
-+    struct pptp_start_ctrl_conn fixed_packet = {
-+	{0}, /* we'll set the header later */
-+	hton16(PPTP_VERSION), 0, 0,
-+	hton32(PPTP_FRAME_ASYNC), hton32(PPTP_BEARER_ANALOG),
-+	hton16(0) /* max channels */,
-+	hton16(0x6021),
-+	{'R','E','L','A','Y','_','P','P','P','1',0}, /* hostname */
-+	{'M','S',' ','W','i','n',' ','N','T',0} /* vendor */
-+    };
-+
-+    if (!packet)
-+	return -1;
-+
-+    /* grab the header from the original packet, since we dont
-+       know if this is a request or a reply */
-+    memcpy(&fixed_packet.header, &packet->header, sizeof(struct pptp_header));
-+
-+    /* and now overwrite the full packet, effectively preserving the header */
-+    memcpy(packet, &fixed_packet, sizeof(*packet));
-+    return 0;
-+}
-+
-+
---- /dev/null
-+++ b/pppd/plugins/pptp/orckit_quirks.h
-@@ -0,0 +1,27 @@
-+/* orckit_quirks.h ...... fix quirks in orckit adsl modems
-+ *                        mulix <mulix@actcom.co.il>
-+ *
-+ * $Id: orckit_quirks.h,v 1.2 2001/11/23 03:42:51 quozl Exp $
-+ */
-+
-+#ifndef INC_ORCKIT_QUIRKS_H_
-+#define INC_ORCKIT_QUIRKS_H_
-+
-+#include "pptp_options.h"
-+#include "pptp_ctrl.h"
-+#include "pptp_msg.h"
-+
-+/* return 0 on success, non zero otherwise */
-+int
-+orckit_atur3_build_hook(struct pptp_out_call_rqst* packt);
-+
-+/* return 0 on success, non zero otherwise */
-+int
-+orckit_atur3_set_link_hook(struct pptp_set_link_info* packet,
-+			   int peer_call_id);
-+
-+/* return 0 on success, non zero otherwise */
-+int
-+orckit_atur3_start_ctrl_conn_hook(struct pptp_start_ctrl_conn* packet);
-+
-+#endif /* INC_ORCKIT_QUIRKS_H_ */
---- /dev/null
-+++ b/pppd/plugins/pptp/pppd-pptp.8
-@@ -0,0 +1,68 @@
-+.\" manual page [] for PPTP plugin for pppd 2.4
-+.\" $Id: pppd-pptp.8,v 1.0 2007/10/17 13:27:17 kad Exp $
-+.\" SH section heading
-+.\" SS subsection heading
-+.\" LP paragraph
-+.\" IP indented paragraph
-+.\" TP hanging label
-+.TH PPPD-PPTP 8
-+.SH NAME
-+pptp.so \- PPTP VPN plugin for
-+.BR pppd (8)
-+.SH SYNOPSIS
-+.B pppd
-+[
-+.I options
-+]
-+plugin pptp.so
-+.SH DESCRIPTION
-+.LP
-+The PPTP plugin for pppd performs interaction with pptp kernel module
-+and has built-in call manager (client part of PPTP).
-+It pasees necessary paremeters from \fIoptions\fR into kernel module 
-+to configure ppp-pptp channel. If it runs in client mode, then additionally 
-+call manager starts up. PPTPD daemon automaticaly invokes this plugin
-+in server mode and passes necessary options, so additional configuration
-+is not needed.
-+
-+.SH OPTIONS for client mode
-+The PPTP plugin introduces one additional pppd option:
-+.TP
-+.BI "pptp_server " server " (required)"
-+Specifies ip address or hostname of pptp server.
-+.TP
-+.BI "pptp_window " packets " (optional)"
-+The amount of sliding window size. 
-+Set to 0 to turn off sliding window.
-+    to 3-10 for low speed connections.
-+    to >10 for hi speed connections.
-+Default is 50
-+.TP
-+.BI "pptp_phone " phone " (optional)"
-+The phone string that sended to pptp server.
-+.SH USAGE
-+Sample configuration file:
-+.nf
-+plugin "pptp.so"
-+pptp_server 192.168.0.1
-+pptp_window 100
-+name myname
-+remotename pptp
-+noauth
-+refuse-eap
-+refuse-chap
-+refuse-mschap
-+nobsdcomp
-+nodeflate
-+novj
-+novjccomp
-+require-mppe-128
-+lcp-echo-interval 20
-+lcp-echo-failure  3
-+.fi
-+
-+.SH SEE ALSO
-+.BR pppd (8) "  " pptpd (8) "  " pptpd.conf (5)
-+
-+.SH AUTHOR
-+xeb xeb@mail.ru
---- /dev/null
-+++ b/pppd/plugins/pptp/pptp.c
-@@ -0,0 +1,323 @@
-+/***************************************************************************
-+ *   Copyright (C) 2006 by Kozlov D. <xeb@mail.ru>                         *
-+ *   some cleanup done (C) 2012 by Daniel Golle <dgolle@allnet.de>         *
-+ *                                                                         *
-+ *   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.,                                       *
-+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
-+ ***************************************************************************/
-+
-+#define PPTP_VERSION "1.00"
-+
-+#ifdef HAVE_CONFIG_H
-+#include <config.h>
-+#endif
-+
-+#include <netinet/in.h>
-+#include <arpa/inet.h>
-+#include <sys/un.h>
-+#include <netdb.h>
-+#include <stdio.h>
-+#include <string.h>
-+#include <stdlib.h>
-+#include <syslog.h>
-+#include <unistd.h>
-+#include <signal.h>
-+#include <errno.h>
-+#include <fcntl.h>
-+#include <sys/wait.h>
-+#include <sys/ioctl.h>
-+
-+#include "pppd.h"
-+#include "fsm.h"
-+#include "lcp.h"
-+#include "ipcp.h"
-+#include "ccp.h"
-+#include "pathnames.h"
-+
-+#include "pptp_callmgr.h"
-+#include <net/if.h>
-+#include <net/ethernet.h>
-+#include <linux/if_pppox.h>
-+
-+#include <stdio.h>
-+#include <stdlib.h>
-+
-+
-+
-+extern char** environ;
-+
-+char pppd_version[] = PPPD_VERSION;
-+extern int new_style_driver;
-+
-+
-+char *pptp_server = NULL;
-+char *pptp_client = NULL;
-+char *pptp_phone = NULL;
-+int pptp_window=50;
-+int pptp_sock=-1;
-+struct in_addr localbind = { INADDR_NONE };
-+
-+static int callmgr_sock;
-+static int pptp_fd;
-+int call_ID;
-+
-+static int open_callmgr(int call_id,struct in_addr inetaddr, char *phonenr,int window);
-+static void launch_callmgr(int call_is,struct in_addr inetaddr, char *phonenr,int window);
-+static int get_call_id(int sock, pid_t gre, pid_t pppd, u_int16_t *peer_call_id);
-+
-+static option_t Options[] =
-+{
-+    { "pptp_server", o_string, &pptp_server,
-+      "PPTP Server" },
-+    { "pptp_client", o_string, &pptp_client,
-+      "PPTP Client" },
-+    { "pptp_sock",o_int, &pptp_sock,
-+      "PPTP socket" },
-+    { "pptp_phone", o_string, &pptp_phone,
-+      "PPTP Phone number" },
-+    { "pptp_window",o_int, &pptp_window,
-+      "PPTP window" },
-+    { NULL }
-+};
-+
-+static int pptp_connect(void);
-+static void pptp_disconnect(void);
-+
-+struct channel pptp_channel = {
-+    options: Options,
-+    check_options: NULL,
-+    connect: &pptp_connect,
-+    disconnect: &pptp_disconnect,
-+    establish_ppp: &generic_establish_ppp,
-+    disestablish_ppp: &generic_disestablish_ppp,
-+    close: NULL,
-+    cleanup: NULL
-+};
-+
-+static int pptp_start_server(void)
-+{
-+	pptp_fd=pptp_sock;
-+	sprintf(ppp_devnam,"pptp (%s)",pptp_client);
-+
-+	return pptp_fd;
-+}
-+static int pptp_start_client(void)
-+{
-+	socklen_t len;
-+	struct sockaddr_pppox src_addr,dst_addr;
-+	struct hostent *hostinfo;
-+
-+	hostinfo=gethostbyname(pptp_server);
-+  if (!hostinfo)
-+	{
-+		error("PPTP: Unknown host %s\n", pptp_server);
-+		return -1;
-+	}
-+	dst_addr.sa_addr.pptp.sin_addr=*(struct in_addr*)hostinfo->h_addr;
-+	{
-+		int sock;
-+		struct sockaddr_in addr;
-+		len=sizeof(addr);
-+		addr.sin_addr=dst_addr.sa_addr.pptp.sin_addr;
-+		addr.sin_family=AF_INET;
-+		addr.sin_port=htons(1700);
-+		sock=socket(AF_INET,SOCK_DGRAM,0);
-+		if (connect(sock,(struct sockaddr*)&addr,sizeof(addr)))
-+		{
-+			close(sock);
-+			error("PPTP: connect failed (%s)\n",strerror(errno));
-+			return -1;
-+		}
-+		getsockname(sock,(struct sockaddr*)&addr,&len);
-+		src_addr.sa_addr.pptp.sin_addr=addr.sin_addr;
-+		close(sock);
-+	}
-+
-+	src_addr.sa_family=AF_PPPOX;
-+	src_addr.sa_protocol=PX_PROTO_PPTP;
-+	src_addr.sa_addr.pptp.call_id=0;
-+
-+	dst_addr.sa_family=AF_PPPOX;
-+	dst_addr.sa_protocol=PX_PROTO_PPTP;
-+	dst_addr.sa_addr.pptp.call_id=0;
-+
-+	pptp_fd=socket(AF_PPPOX,SOCK_STREAM,PX_PROTO_PPTP);
-+	if (pptp_fd<0)
-+	{
-+		error("PPTP: failed to create PPTP socket (%s)\n",strerror(errno));
-+		return -1;
-+	}
-+	if (bind(pptp_fd,(struct sockaddr*)&src_addr,sizeof(src_addr)))
-+	{
-+		close(pptp_fd);
-+		error("PPTP: failed to bind PPTP socket (%s)\n",strerror(errno));
-+		return -1;
-+	}
-+	len=sizeof(src_addr);
-+	getsockname(pptp_fd,(struct sockaddr*)&src_addr,&len);
-+	call_ID=src_addr.sa_addr.pptp.call_id;
-+
-+  do {
-+        /*
-+         * Open connection to call manager (Launch call manager if necessary.)
-+         */
-+        callmgr_sock = open_callmgr(src_addr.sa_addr.pptp.call_id,dst_addr.sa_addr.pptp.sin_addr, pptp_phone, pptp_window);
-+	if (callmgr_sock<0)
-+	{
-+		close(pptp_fd);
-+		return -1;
-+        }
-+        /* Exchange PIDs, get call ID */
-+    } while (get_call_id(callmgr_sock, getpid(), getpid(), &dst_addr.sa_addr.pptp.call_id) < 0);
-+
-+	if (connect(pptp_fd,(struct sockaddr*)&dst_addr,sizeof(dst_addr)))
-+	{
-+		close(callmgr_sock);
-+		close(pptp_fd);
-+		error("PPTP: failed to connect PPTP socket (%s)\n",strerror(errno));
-+		return -1;
-+	}
-+
-+	sprintf(ppp_devnam,"pptp (%s)",pptp_server);
-+
-+	return pptp_fd;
-+}
-+static int pptp_connect(void)
-+{
-+	if ((!pptp_server && !pptp_client) || (pptp_server && pptp_client))
-+	{
-+		fatal("PPTP: unknown mode (you must specify pptp_server or pptp_client option)");
-+		return -1;
-+	}
-+
-+	if (pptp_server) return pptp_start_client();
-+	return pptp_start_server();
-+}
-+
-+static void pptp_disconnect(void)
-+{
-+	if (pptp_server) close(callmgr_sock);
-+	close(pptp_fd);
-+}
-+
-+static int open_callmgr(int call_id,struct in_addr inetaddr, char *phonenr,int window)
-+{
-+    /* Try to open unix domain socket to call manager. */
-+    struct sockaddr_un where;
-+    const int NUM_TRIES = 3;
-+    int i, fd;
-+    pid_t pid;
-+    int status;
-+    /* Open socket */
-+    if ((fd = socket(AF_UNIX, SOCK_STREAM, 0)) < 0)
-+    {
-+        fatal("Could not create unix domain socket: %s", strerror(errno));
-+    }
-+    /* Make address */
-+    callmgr_name_unixsock(&where, inetaddr, localbind);
-+    for (i = 0; i < NUM_TRIES; i++)
-+    {
-+        if (connect(fd, (struct sockaddr *) &where, sizeof(where)) < 0)
-+        {
-+            /* couldn't connect.  We'll have to launch this guy. */
-+
-+            unlink (where.sun_path);
-+
-+            /* fork and launch call manager process */
-+            switch (pid = fork())
-+            {
-+                case -1: /* failure */
-+                    fatal("fork() to launch call manager failed.");
-+                case 0: /* child */
-+                {
-+                    /* close the pty and gre in the call manager */
-+                    close(fd);
-+                    close(pptp_fd);
-+                    launch_callmgr(call_id,inetaddr,phonenr,window);
-+                }
-+                default: /* parent */
-+                    waitpid(pid, &status, 0);
-+                    if (status!= 0)
-+		    {
-+			close(fd);
-+			error("Call manager exited with error %d", status);
-+			return -1;
-+		    }
-+                    break;
-+            }
-+            sleep(1);
-+        }
-+        else return fd;
-+    }
-+    close(fd);
-+    error("Could not launch call manager after %d tries.", i);
-+    return -1;   /* make gcc happy */
-+}
-+
-+/*** call the call manager main ***********************************************/
-+static void launch_callmgr(int call_id,struct in_addr inetaddr, char *phonenr,int window)
-+{
-+    dbglog("pptp: call manager for %s\n", inet_ntoa(inetaddr));
-+    dbglog("window size:\t%d\n",window);
-+    if (phonenr) dbglog("phone number:\t'%s'\n",phonenr);
-+    dbglog("call id:\t%d\n",call_id);
-+    exit(callmgr_main(inetaddr, phonenr, window, call_id));
-+}
-+
-+/*** exchange data with the call manager  *************************************/
-+/* XXX need better error checking XXX */
-+static int get_call_id(int sock, pid_t gre, pid_t pppd,
-+		u_int16_t *peer_call_id)
-+{
-+    u_int16_t m_call_id, m_peer_call_id;
-+    /* write pid's to socket */
-+    /* don't bother with network byte order, because pid's are meaningless
-+     * outside the local host.
-+     */
-+    int rc;
-+    rc = write(sock, &gre, sizeof(gre));
-+    if (rc != sizeof(gre))
-+        return -1;
-+    rc = write(sock, &pppd, sizeof(pppd));
-+    if (rc != sizeof(pppd))
-+        return -1;
-+    rc = read(sock,  &m_call_id, sizeof(m_call_id));
-+    if (rc != sizeof(m_call_id))
-+        return -1;
-+    rc = read(sock,  &m_peer_call_id, sizeof(m_peer_call_id));
-+    if (rc != sizeof(m_peer_call_id))
-+        return -1;
-+    /*
-+     * XXX FIXME ... DO ERROR CHECKING & TIME-OUTS XXX
-+     * (Rhialto: I am assuming for now that timeouts are not relevant
-+     * here, because the read and write calls would return -1 (fail) when
-+     * the peer goes away during the process. We know it is (or was)
-+     * running because the connect() call succeeded.)
-+     * (James: on the other hand, if the route to the peer goes away, we
-+     * wouldn't get told by read() or write() for quite some time.)
-+     */
-+    *peer_call_id = m_peer_call_id;
-+    return 0;
-+}
-+
-+void plugin_init(void)
-+{
-+    add_options(Options);
-+
-+    info("PPTP plugin version %s", PPTP_VERSION);
-+
-+    the_channel = &pptp_channel;
-+    modem = 0;
-+}
---- /dev/null
-+++ b/pppd/plugins/pptp/pptp_callmgr.c
-@@ -0,0 +1,381 @@
-+/* pptp_callmgr.c ... Call manager for PPTP connections.
-+ *                    Handles TCP port 1723 protocol.
-+ *                    C. Scott Ananian <cananian@alumni.princeton.edu>
-+ *
-+ * $Id: pptp_callmgr.c,v 1.20 2005/03/31 07:42:39 quozl Exp $
-+ */
-+#include <signal.h>
-+#include <sys/time.h>
-+#include <sys/types.h>
-+#include <sys/stat.h>
-+#include <sys/socket.h>
-+#include <netinet/in.h>
-+#include <arpa/inet.h>
-+#include <sys/un.h>
-+#include <unistd.h>
-+#include <stdlib.h>
-+#include <string.h>
-+#include <assert.h>
-+#include <setjmp.h>
-+#include <stdio.h>
-+#include <errno.h>
-+#include "pptp_callmgr.h"
-+#include "pptp_ctrl.h"
-+#include "pptp_msg.h"
-+#include "dirutil.h"
-+#include "vector.h"
-+#include "util.h"
-+#include "pppd.h"
-+
-+extern struct in_addr localbind; /* from pptp.c */
-+extern int call_ID;
-+
-+int open_inetsock(struct in_addr inetaddr);
-+int open_unixsock(struct in_addr inetaddr);
-+void close_inetsock(int fd, struct in_addr inetaddr);
-+void close_unixsock(int fd, struct in_addr inetaddr);
-+
-+sigjmp_buf callmgr_env;
-+
-+void callmgr_sighandler(int sig) {
-+    /* TODO: according to signal(2), siglongjmp() is unsafe used here */
-+    siglongjmp (callmgr_env, 1);
-+}
-+
-+void callmgr_do_nothing(int sig) {
-+    /* do nothing signal handler */
-+}
-+
-+struct local_callinfo {
-+    int unix_sock;
-+    pid_t pid[2];
-+};
-+
-+struct local_conninfo {
-+    VECTOR * call_list;
-+    fd_set * call_set;
-+};
-+
-+/* Call callback */
-+void call_callback(PPTP_CONN *conn, PPTP_CALL *call, enum call_state state)
-+{
-+    struct local_callinfo *lci;
-+    struct local_conninfo *conninfo;
-+    u_int16_t call_id[2];
-+    switch(state) {
-+        case CALL_OPEN_DONE:
-+            /* okey dokey.  This means that the call_id and peer_call_id are
-+             * now valid, so lets send them on to our friends who requested
-+             * this call.  */
-+            lci = pptp_call_closure_get(conn, call); assert(lci != NULL);
-+            pptp_call_get_ids(conn, call, &call_id[0], &call_id[1]);
-+            write(lci->unix_sock, &call_id, sizeof(call_id));
-+            /* Our duty to the fatherland is now complete. */
-+            break;
-+        case CALL_OPEN_FAIL:
-+        case CALL_CLOSE_RQST:
-+        case CALL_CLOSE_DONE:
-+            /* don't need to do anything here, except make sure tables
-+             * are sync'ed */
-+            dbglog("Closing connection (call state)");
-+            conninfo = pptp_conn_closure_get(conn);
-+            lci = pptp_call_closure_get(conn, call);
-+            assert(lci != NULL && conninfo != NULL);
-+            if (vector_contains(conninfo->call_list, lci->unix_sock)) {
-+                vector_remove(conninfo->call_list, lci->unix_sock);
-+                close(lci->unix_sock);
-+                FD_CLR(lci->unix_sock, conninfo->call_set);
-+            }
-+            break;
-+        default:
-+            dbglog("Unhandled call callback state [%d].", (int) state);
-+            break;
-+    }
-+}
-+
-+/******************************************************************************
-+ * NOTE ABOUT 'VOLATILE':
-+ * several variables here get a volatile qualifier to silence warnings
-+ * from older (before 3.0) gccs. if the longjmp stuff is removed,
-+ * the volatile qualifiers should be removed as well.
-+ *****************************************************************************/
-+
-+/*** Call Manager *************************************************************/
-+int callmgr_main(struct in_addr inetaddr, char phonenr[], int window, int pcallid)
-+{
-+    int inet_sock, unix_sock;
-+    fd_set call_set;
-+    PPTP_CONN * conn;
-+    VECTOR * call_list;
-+    int max_fd = 0;
-+    volatile int first = 1;
-+    int retval;
-+    int i;
-+    if (pcallid>0) call_ID=pcallid;
-+
-+    /* Step 1: Open sockets. */
-+    if ((inet_sock = open_inetsock(inetaddr)) < 0)
-+        fatal("Could not open control connection to %s", inet_ntoa(inetaddr));
-+    dbglog("control connection");
-+    if ((unix_sock = open_unixsock(inetaddr)) < 0)
-+        fatal("Could not open unix socket for %s", inet_ntoa(inetaddr));
-+    /* Step 1b: FORK and return status to calling process. */
-+    dbglog("unix_sock");
-+
-+    switch (fork()) {
-+        case 0: /* child. stick around. */
-+            break;
-+        case -1: /* failure.  Fatal. */
-+            fatal("Could not fork.");
-+        default: /* Parent. Return status to caller. */
-+            exit(0);
-+    }
-+    /* re-open stderr as /dev/null to release it */
-+    file2fd("/dev/null", "wb", STDERR_FILENO);
-+    /* Step 1c: Clean up unix socket on TERM */
-+    if (sigsetjmp(callmgr_env, 1) != 0)
-+        goto cleanup;
-+    signal(SIGINT, callmgr_sighandler);
-+    signal(SIGTERM, callmgr_sighandler);
-+    signal(SIGPIPE, callmgr_do_nothing);
-+    signal(SIGUSR1, callmgr_do_nothing); /* signal state change
-+                                            wake up accept */
-+    /* Step 2: Open control connection and register callback */
-+    if ((conn = pptp_conn_open(inet_sock, 1, NULL/* callback */)) == NULL) {
-+        close(unix_sock); close(inet_sock); fatal("Could not open connection.");
-+    }
-+    FD_ZERO(&call_set);
-+    call_list = vector_create();
-+    {
-+        struct local_conninfo *conninfo = malloc(sizeof(*conninfo));
-+        if (conninfo == NULL) {
-+            close(unix_sock); close(inet_sock); fatal("No memory.");
-+        }
-+        conninfo->call_list = call_list;
-+        conninfo->call_set  = &call_set;
-+        pptp_conn_closure_put(conn, conninfo);
-+    }
-+    if (sigsetjmp(callmgr_env, 1) != 0) goto shutdown;
-+    /* Step 3: Get FD_SETs */
-+    max_fd = unix_sock;
-+    do {
-+        int rc;
-+        fd_set read_set = call_set, write_set;
-+        FD_ZERO (&write_set);
-+        if (pptp_conn_established(conn)) {
-+	  FD_SET (unix_sock, &read_set);
-+	  if (unix_sock > max_fd) max_fd = unix_sock;
-+	}
-+        pptp_fd_set(conn, &read_set, &write_set, &max_fd);
-+        for (; max_fd > 0 ; max_fd--) {
-+            if (FD_ISSET (max_fd, &read_set) ||
-+                    FD_ISSET (max_fd, &write_set))
-+                break;
-+        }
-+        /* Step 4: Wait on INET or UNIX event */
-+        if ((rc = select(max_fd + 1, &read_set, &write_set, NULL, NULL)) <0) {
-+	  if (errno == EBADF) break;
-+	  /* a signal or somesuch. */
-+	  continue;
-+	}
-+        /* Step 5a: Handle INET events */
-+        rc = pptp_dispatch(conn, &read_set, &write_set);
-+	if (rc < 0)
-+	    break;
-+        /* Step 5b: Handle new connection to UNIX socket */
-+        if (FD_ISSET(unix_sock, &read_set)) {
-+            /* New call! */
-+            struct sockaddr_un from;
-+            int len = sizeof(from);
-+            PPTP_CALL * call;
-+            struct local_callinfo *lci;
-+            int s;
-+            /* Accept the socket */
-+            FD_CLR (unix_sock, &read_set);
-+            if ((s = accept(unix_sock, (struct sockaddr *) &from, &len)) < 0) {
-+                warn("Socket not accepted: %s", strerror(errno));
-+                goto skip_accept;
-+            }
-+            /* Allocate memory for local call information structure. */
-+            if ((lci = malloc(sizeof(*lci))) == NULL) {
-+                warn("Out of memory."); close(s); goto skip_accept;
-+            }
-+            lci->unix_sock = s;
-+            /* Give the initiator time to write the PIDs while we open
-+             * the call */
-+            call = pptp_call_open(conn, call_ID,call_callback, phonenr,window);
-+            /* Read and store the associated pids */
-+            read(s, &lci->pid[0], sizeof(lci->pid[0]));
-+            read(s, &lci->pid[1], sizeof(lci->pid[1]));
-+            /* associate the local information with the call */
-+            pptp_call_closure_put(conn, call, (void *) lci);
-+            /* The rest is done on callback. */
-+            /* Keep alive; wait for close */
-+            retval = vector_insert(call_list, s, call); assert(retval);
-+            if (s > max_fd) max_fd = s;
-+            FD_SET(s, &call_set);
-+            first = 0;
-+        }
-+skip_accept: /* Step 5c: Handle socket close */
-+        for (i = 0; i < max_fd + 1; i++)
-+            if (FD_ISSET(i, &read_set)) {
-+                /* close it */
-+                PPTP_CALL * call;
-+                retval = vector_search(call_list, i, &call);
-+                if (retval) {
-+                    struct local_callinfo *lci =
-+                        pptp_call_closure_get(conn, call);
-+                    dbglog("Closing connection (unhandled)");
-+                    free(lci);
-+                    /* soft shutdown.  Callback will do hard shutdown later */
-+                    pptp_call_close(conn, call);
-+                    vector_remove(call_list, i);
-+                }
-+                FD_CLR(i, &call_set);
-+                close(i);
-+            }
-+    } while (vector_size(call_list) > 0 || first);
-+shutdown:
-+    {
-+        int rc;
-+        fd_set read_set, write_set;
-+        struct timeval tv;
-+	signal(SIGINT, callmgr_do_nothing);
-+	signal(SIGTERM, callmgr_do_nothing);
-+        /* warn("Shutdown"); */
-+        /* kill all open calls */
-+        for (i = 0; i < vector_size(call_list); i++) {
-+            PPTP_CALL *call = vector_get_Nth(call_list, i);
-+            dbglog("Closing connection (shutdown)");
-+            pptp_call_close(conn, call);
-+        }
-+        /* attempt to dispatch these messages */
-+        FD_ZERO(&read_set);
-+        FD_ZERO(&write_set);
-+        pptp_fd_set(conn, &read_set, &write_set, &max_fd);
-+	tv.tv_sec = 0;
-+	tv.tv_usec = 0;
-+	select(max_fd + 1, &read_set, &write_set, NULL, &tv);
-+        rc = pptp_dispatch(conn, &read_set, &write_set);
-+	if (rc > 0) {
-+	  /* wait for a respond, a timeout because there might not be one */
-+	  FD_ZERO(&read_set);
-+	  FD_ZERO(&write_set);
-+	  pptp_fd_set(conn, &read_set, &write_set, &max_fd);
-+	  tv.tv_sec = 2;
-+	  tv.tv_usec = 0;
-+	  select(max_fd + 1, &read_set, &write_set, NULL, &tv);
-+	  rc = pptp_dispatch(conn, &read_set, &write_set);
-+	  if (rc > 0) {
-+	    if (i > 0) sleep(2);
-+	    /* no more open calls.  Close the connection. */
-+	    pptp_conn_close(conn, PPTP_STOP_LOCAL_SHUTDOWN);
-+	    /* wait for a respond, a timeout because there might not be one */
-+	    FD_ZERO(&read_set);
-+	    FD_ZERO(&write_set);
-+	    pptp_fd_set(conn, &read_set, &write_set, &max_fd);
-+	    tv.tv_sec = 2;
-+	    tv.tv_usec = 0;
-+	    select(max_fd + 1, &read_set, &write_set, NULL, &tv);
-+	    pptp_dispatch(conn, &read_set, &write_set);
-+	    if (rc > 0) sleep(2);
-+	  }
-+	}
-+        /* with extreme prejudice */
-+        pptp_conn_destroy(conn);
-+        vector_destroy(call_list);
-+    }
-+cleanup:
-+    signal(SIGINT, callmgr_do_nothing);
-+    signal(SIGTERM, callmgr_do_nothing);
-+    close_inetsock(inet_sock, inetaddr);
-+    close_unixsock(unix_sock, inetaddr);
-+    return 0;
-+}
-+
-+/*** open_inetsock ************************************************************/
-+int open_inetsock(struct in_addr inetaddr)
-+{
-+    struct sockaddr_in dest, src;
-+    int s;
-+    dest.sin_family = AF_INET;
-+    dest.sin_port   = htons(PPTP_PORT);
-+    dest.sin_addr   = inetaddr;
-+    if ((s = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
-+        warn("socket: %s", strerror(errno));
-+        return s;
-+    }
-+    if (localbind.s_addr != INADDR_NONE) {
-+        bzero(&src, sizeof(src));
-+        src.sin_family = AF_INET;
-+        src.sin_addr   = localbind;
-+        if (bind(s, (struct sockaddr *) &src, sizeof(src)) != 0) {
-+            warn("bind: %s", strerror(errno));
-+            close(s); return -1;
-+        }
-+    }
-+    if (connect(s, (struct sockaddr *) &dest, sizeof(dest)) < 0) {
-+        warn("connect: %s", strerror(errno));
-+        close(s); return -1;
-+    }
-+    return s;
-+}
-+
-+/*** open_unixsock ************************************************************/
-+int open_unixsock(struct in_addr inetaddr)
-+{
-+    struct sockaddr_un where;
-+    struct stat st;
-+    char *dir;
-+    int s;
-+    if ((s = socket(AF_UNIX, SOCK_STREAM, 0)) < 0) {
-+        warn("socket: %s", strerror(errno));
-+        return s;
-+    }
-+    callmgr_name_unixsock( &where, inetaddr, localbind);
-+    if (stat(where.sun_path, &st) >= 0)
-+    {
-+        warn("Call manager for %s is already running.", inet_ntoa(inetaddr));
-+        close(s); return -1;
-+    }
-+   /* Make sure path is valid. */
-+    dir = dirnamex(where.sun_path);
-+    if (!make_valid_path(dir, 0770))
-+        fatal("Could not make path to %s: %s", where.sun_path, strerror(errno));
-+    free(dir);
-+    if (bind(s, (struct sockaddr *) &where, sizeof(where)) < 0) {
-+        warn("bind: %s", strerror(errno));
-+        close(s); return -1;
-+    }
-+    chmod(where.sun_path, 0777);
-+    listen(s, 127);
-+    return s;
-+}
-+
-+/*** close_inetsock ***********************************************************/
-+void close_inetsock(int fd, struct in_addr inetaddr)
-+{
-+    close(fd);
-+}
-+
-+/*** close_unixsock ***********************************************************/
-+void close_unixsock(int fd, struct in_addr inetaddr)
-+{
-+    struct sockaddr_un where;
-+    close(fd);
-+    callmgr_name_unixsock(&where, inetaddr, localbind);
-+    unlink(where.sun_path);
-+}
-+
-+/*** make a unix socket address ***********************************************/
-+void callmgr_name_unixsock(struct sockaddr_un *where,
-+			   struct in_addr inetaddr,
-+			   struct in_addr localbind)
-+{
-+    char localaddr[16], remoteaddr[16];
-+    where->sun_family = AF_UNIX;
-+    strncpy(localaddr,  inet_ntoa(localbind), 16);
-+    strncpy(remoteaddr, inet_ntoa(inetaddr),  16);
-+    snprintf(where->sun_path, sizeof(where->sun_path),
-+            PPTP_SOCKET_PREFIX "%s:%i", remoteaddr,call_ID);
-+}
---- /dev/null
-+++ b/pppd/plugins/pptp/pptp_callmgr.h
-@@ -0,0 +1,17 @@
-+/* pptp_callmgr.h ... Call manager for PPTP connections.
-+ *                    Handles TCP port 1723 protocol.
-+ *                    C. Scott Ananian <cananian@alumni.princeton.edu>
-+ *
-+ * $Id: pptp_callmgr.h,v 1.3 2003/02/17 00:22:17 quozl Exp $
-+ */
-+
-+#define PPTP_SOCKET_PREFIX "/var/run/pptp/"
-+
-+int callmgr_main(struct in_addr inetaddr,
-+		char phonenr[],
-+		int window,
-+		int pcallid);
-+
-+void callmgr_name_unixsock(struct sockaddr_un *where,
-+			   struct in_addr inetaddr,
-+			   struct in_addr localbind);
---- /dev/null
-+++ b/pppd/plugins/pptp/pptp_ctrl.c
-@@ -0,0 +1,1077 @@
-+/* pptp_ctrl.c ... handle PPTP control connection.
-+ *                 C. Scott Ananian <cananian@alumni.princeton.edu>
-+ *
-+ * $Id: pptp_ctrl.c,v 1.31 2005/03/31 07:42:39 quozl Exp $
-+ */
-+
-+#include <errno.h>
-+#include <sys/time.h>
-+#include <sys/types.h>
-+#include <sys/socket.h>
-+#include <netinet/in.h>
-+#include <unistd.h>
-+#include <stdlib.h>
-+#include <assert.h>
-+#include <signal.h>
-+#include <string.h>
-+#include <ctype.h>
-+#include <fcntl.h>
-+#include "pptp_msg.h"
-+#include "pptp_ctrl.h"
-+#include "pptp_options.h"
-+#include "vector.h"
-+#include "util.h"
-+#include "pptp_quirks.h"
-+
-+/* BECAUSE OF SIGNAL LIMITATIONS, EACH PROCESS CAN ONLY MANAGE ONE
-+ * CONNECTION.  SO THIS 'PPTP_CONN' STRUCTURE IS A BIT MISLEADING.
-+ * WE'LL KEEP CONNECTION-SPECIFIC INFORMATION IN THERE ANYWAY (AS
-+ * OPPOSED TO USING GLOBAL VARIABLES), BUT BEWARE THAT THE ENTIRE
-+ * UNIX SIGNAL-HANDLING SEMANTICS WOULD HAVE TO CHANGE (OR THE
-+ * TIME-OUT CODE DRASTICALLY REWRITTEN) BEFORE YOU COULD DO A
-+ * PPTP_CONN_OPEN MORE THAN ONCE PER PROCESS AND GET AWAY WITH IT.
-+ */
-+
-+/* This structure contains connection-specific information that the
-+ * signal handler needs to see.  Thus, it needs to be in a global
-+ * variable.  If you end up using pthreads or something (why not
-+ * just processes?), this would have to be placed in a thread-specific
-+ * data area, using pthread_get|set_specific, etc., so I've
-+ * conveniently encapsulated it for you.
-+ * [linux threads will have to support thread-specific signals
-+ *  before this would work at all, which, as of this writing
-+ *  (linux-threads v0.6, linux kernel 2.1.72), it does not.]
-+ */
-+
-+/* Globals */
-+
-+/* control the number of times echo packets will be logged */
-+static int nlogecho = 10;
-+
-+static struct thread_specific {
-+    struct sigaction old_sigaction; /* evil signals */
-+    PPTP_CONN * conn;
-+} global;
-+
-+#define INITIAL_BUFSIZE 512 /* initial i/o buffer size. */
-+
-+struct PPTP_CONN {
-+    int inet_sock;
-+    /* Connection States */
-+    enum {
-+        CONN_IDLE, CONN_WAIT_CTL_REPLY, CONN_WAIT_STOP_REPLY, CONN_ESTABLISHED
-+    } conn_state; /* on startup: CONN_IDLE */
-+    /* Keep-alive states */
-+    enum {
-+        KA_NONE, KA_OUTSTANDING
-+    } ka_state;  /* on startup: KA_NONE */
-+    /* Keep-alive ID; monotonically increasing (watch wrap-around!) */
-+    u_int32_t ka_id; /* on startup: 1 */
-+    /* Other properties. */
-+    u_int16_t version;
-+    u_int16_t firmware_rev;
-+    u_int8_t  hostname[64], vendor[64];
-+    /* XXX these are only PNS properties, currently XXX */
-+    /* Call assignment information. */
-+    u_int16_t call_serial_number;
-+    VECTOR *call;
-+    void * closure;
-+    pptp_conn_cb callback;
-+    /******* IO buffers ******/
-+    char * read_buffer, *write_buffer;
-+    size_t read_alloc,   write_alloc;
-+    size_t read_size,    write_size;
-+};
-+
-+struct PPTP_CALL {
-+    /* Call properties */
-+    enum {
-+        PPTP_CALL_PAC, PPTP_CALL_PNS
-+    } call_type;
-+    union {
-+        enum pptp_pac_state {
-+            PAC_IDLE, PAC_WAIT_REPLY, PAC_ESTABLISHED, PAC_WAIT_CS_ANS
-+        } pac;
-+        enum pptp_pns_state {
-+            PNS_IDLE, PNS_WAIT_REPLY, PNS_ESTABLISHED, PNS_WAIT_DISCONNECT
-+        } pns;
-+    } state;
-+    u_int16_t call_id, peer_call_id;
-+    u_int16_t sernum;
-+    u_int32_t speed;
-+    /* For user data: */
-+    pptp_call_cb callback;
-+    void * closure;
-+};
-+
-+
-+/* PPTP error codes: ----------------------------------------------*/
-+
-+/* (General Error Codes) */
-+static const struct {
-+    const char *name, *desc;
-+} pptp_general_errors[] = {
-+#define PPTP_GENERAL_ERROR_NONE                 0
-+    { "(None)", "No general error" },
-+#define PPTP_GENERAL_ERROR_NOT_CONNECTED        1
-+    { "(Not-Connected)", "No control connection exists yet for this "
-+        "PAC-PNS pair" },
-+#define PPTP_GENERAL_ERROR_BAD_FORMAT           2
-+    { "(Bad-Format)", "Length is wrong or Magic Cookie value is incorrect" },
-+#define PPTP_GENERAL_ERROR_BAD_VALUE            3
-+    { "(Bad-Value)", "One of the field values was out of range or "
-+            "reserved field was non-zero" },
-+#define PPTP_GENERAL_ERROR_NO_RESOURCE          4
-+    { "(No-Resource)", "Insufficient resources to handle this command now" },
-+#define PPTP_GENERAL_ERROR_BAD_CALLID           5
-+    { "(Bad-Call ID)", "The Call ID is invalid in this context" },
-+#define PPTP_GENERAL_ERROR_PAC_ERROR            6
-+    { "(PAC-Error)", "A generic vendor-specific error occured in the PAC" }
-+};
-+
-+#define  MAX_GENERAL_ERROR ( sizeof(pptp_general_errors) / \
-+        sizeof(pptp_general_errors[0]) - 1)
-+
-+/* Outgoing Call Reply Result Codes */
-+static const char *pptp_out_call_reply_result[] = {
-+/* 0 */	"Unknown Result Code",
-+/* 1 */	"Connected",
-+/* 2 */	"General Error",
-+/* 3 */	"No Carrier Detected",
-+/* 4 */	"Busy Signal",
-+/* 5 */	"No Dial Tone",
-+/* 6 */	"Time Out",
-+/* 7 */	"Not Accepted, Call is administratively prohibited" };
-+
-+#define MAX_OUT_CALL_REPLY_RESULT 7
-+
-+/* Call Disconnect Notify  Result Codes */
-+static const char *pptp_call_disc_ntfy[] = {
-+/* 0 */	"Unknown Result Code",
-+/* 1 */	"Lost Carrier",
-+/* 2 */	"General Error",
-+/* 3 */	"Administrative Shutdown",
-+/* 4 */	"(your) Request" };
-+
-+#define MAX_CALL_DISC_NTFY 4
-+
-+/* Call Disconnect Notify  Result Codes */
-+static const char *pptp_start_ctrl_conn_rply[] = {
-+/* 0 */	"Unknown Result Code",
-+/* 1 */	"Successful Channel Establishment",
-+/* 2 */	"General Error",
-+/* 3 */	"Command Channel Already Exists",
-+/* 4 */	"Requester is not Authorized" };
-+
-+#define MAX_START_CTRL_CONN_REPLY 4
-+
-+/* timing options */
-+int idle_wait = PPTP_TIMEOUT;
-+int max_echo_wait = PPTP_TIMEOUT;
-+
-+/* Local prototypes */
-+static void pptp_reset_timer(void);
-+static void pptp_handle_timer();
-+/* Write/read as much as we can without blocking. */
-+int pptp_write_some(PPTP_CONN * conn);
-+int pptp_read_some(PPTP_CONN * conn);
-+/* Make valid packets from read_buffer */
-+int pptp_make_packet(PPTP_CONN * conn, void **buf, size_t *size);
-+/* Add packet to write_buffer */
-+int pptp_send_ctrl_packet(PPTP_CONN * conn, void * buffer, size_t size);
-+/* Dispatch packets (general) */
-+int pptp_dispatch_packet(PPTP_CONN * conn, void * buffer, size_t size);
-+/* Dispatch packets (control messages) */
-+int ctrlp_disp(PPTP_CONN * conn, void * buffer, size_t size);
-+/* Set link info, for pptp servers that need it.
-+   this is a noop, unless the user specified a quirk and
-+   there's a set_link hook defined in the quirks table
-+   for that quirk */
-+void pptp_set_link(PPTP_CONN * conn, int peer_call_id);
-+
-+/*** log error information in control packets *********************************/
-+static void ctrlp_error( int result, int error, int cause,
-+        const char *result_text[], int max_result)
-+{
-+    if( cause >= 0)
-+        warn("Result code is %d '%s'. Error code is %d, Cause code is %d",
-+                result, result_text[result <= max_result ?  result : 0], error,
-+                cause );
-+    else
-+        warn("Reply result code is %d '%s'. Error code is %d",
-+                result, result_text[result <= max_result ?  result : 0], error);
-+    if ((error > 0) && (error <= MAX_GENERAL_ERROR)){
-+        if( result != PPTP_RESULT_GENERAL_ERROR )
-+            warn("Result code is something else then \"general error\", "
-+                    "so the following error is probably bogus.");
-+        warn("Error is '%s', Error message: '%s'",
-+                pptp_general_errors[error].name,
-+                pptp_general_errors[error].desc);
-+    }
-+}
-+
-+static const char *ctrl_msg_types[] = {
-+         "invalid control message type",
-+/*         (Control Connection Management) */
-+         "Start-Control-Connection-Request",            /* 1 */
-+         "Start-Control-Connection-Reply",              /* 2 */
-+         "Stop-Control-Connection-Request",             /* 3 */
-+         "Stop-Control-Connection-Reply",               /* 4 */
-+         "Echo-Request",                                /* 5 */
-+         "Echo-Reply",                                  /* 6 */
-+/*         (Call Management) */
-+         "Outgoing-Call-Request",                       /* 7 */
-+         "Outgoing-Call-Reply",                         /* 8 */
-+         "Incoming-Call-Request",                       /* 9 */
-+         "Incoming-Call-Reply",                        /* 10 */
-+         "Incoming-Call-Connected",                    /* 11 */
-+         "Call-Clear-Request",                         /* 12 */
-+         "Call-Disconnect-Notify",                     /* 13 */
-+/*         (Error Reporting) */
-+         "WAN-Error-Notify",                           /* 14 */
-+/*         (PPP Session Control) */
-+         "Set-Link-Info"                              /* 15 */
-+};
-+#define MAX_CTRLMSG_TYPE 15
-+
-+/*** report a sent packet ****************************************************/
-+static void ctrlp_rep( void * buffer, int size, int isbuff)
-+{
-+    struct pptp_header *packet = buffer;
-+    unsigned int type;
-+    if(size < sizeof(struct pptp_header)) return;
-+    type = ntoh16(packet->ctrl_type);
-+    /* FIXME: do not report sending echo requests as long as they are
-+     * sent in a signal handler. This may dead lock as the syslog call
-+     * is not reentrant */
-+    if( type ==  PPTP_ECHO_RQST ) return;
-+    /* don't keep reporting sending of echo's */
-+    if( (type == PPTP_ECHO_RQST || type == PPTP_ECHO_RPLY) && nlogecho <= 0 ) return;
-+    dbglog("%s control packet type is %d '%s'\n",isbuff ? "Buffered" : "Sent",
-+            type, ctrl_msg_types[type <= MAX_CTRLMSG_TYPE ? type : 0]);
-+
-+}
-+
-+
-+
-+/* Open new pptp_connection.  Returns NULL on failure. */
-+PPTP_CONN * pptp_conn_open(int inet_sock, int isclient, pptp_conn_cb callback)
-+{
-+    PPTP_CONN *conn;
-+    /* Allocate structure */
-+    if ((conn = malloc(sizeof(*conn))) == NULL) return NULL;
-+    if ((conn->call = vector_create()) == NULL) { free(conn); return NULL; }
-+    /* Initialize */
-+    conn->inet_sock = inet_sock;
-+    conn->conn_state = CONN_IDLE;
-+    conn->ka_state  = KA_NONE;
-+    conn->ka_id     = 1;
-+    conn->call_serial_number = 0;
-+    conn->callback  = callback;
-+    /* Create I/O buffers */
-+    conn->read_size = conn->write_size = 0;
-+    conn->read_alloc = conn->write_alloc = INITIAL_BUFSIZE;
-+    conn->read_buffer =
-+        malloc(sizeof(*(conn->read_buffer)) * conn->read_alloc);
-+    conn->write_buffer =
-+        malloc(sizeof(*(conn->write_buffer)) * conn->write_alloc);
-+    if (conn->read_buffer == NULL || conn->write_buffer == NULL) {
-+        if (conn->read_buffer  != NULL) free(conn->read_buffer);
-+        if (conn->write_buffer != NULL) free(conn->write_buffer);
-+        vector_destroy(conn->call); free(conn); return NULL;
-+    }
-+    /* Make this socket non-blocking. */
-+    fcntl(conn->inet_sock, F_SETFL, O_NONBLOCK);
-+    /* Request connection from server, if this is a client */
-+    if (isclient) {
-+        struct pptp_start_ctrl_conn packet = {
-+            PPTP_HEADER_CTRL(PPTP_START_CTRL_CONN_RQST),
-+            hton16(PPTP_VERSION), 0, 0,
-+            hton32(PPTP_FRAME_CAP), hton32(PPTP_BEARER_CAP),
-+            hton16(PPTP_MAX_CHANNELS), hton16(PPTP_FIRMWARE_VERSION),
-+            PPTP_HOSTNAME, PPTP_VENDOR
-+        };
-+        /* fix this packet, if necessary */
-+        int idx, rc;
-+        idx = get_quirk_index();
-+        if (idx != -1 && pptp_fixups[idx].start_ctrl_conn) {
-+            if ((rc = pptp_fixups[idx].start_ctrl_conn(&packet)))
-+                warn("calling the start_ctrl_conn hook failed (%d)", rc);
-+        }
-+        if (pptp_send_ctrl_packet(conn, &packet, sizeof(packet)))
-+            conn->conn_state = CONN_WAIT_CTL_REPLY;
-+        else
-+            return NULL; /* could not send initial start request. */
-+    }
-+    /* Set up interval/keep-alive timer */
-+    /*   First, register handler for SIGALRM */
-+    sigpipe_create();
-+    sigpipe_assign(SIGALRM);
-+    global.conn = conn;
-+    /* Reset event timer */
-+    pptp_reset_timer();
-+    /* all done. */
-+    return conn;
-+}
-+
-+int pptp_conn_established(PPTP_CONN *conn) {
-+  return (conn->conn_state == CONN_ESTABLISHED);
-+}
-+
-+/* This currently *only* works for client call requests.
-+ * We need to do something else to allocate calls for incoming requests.
-+ */
-+PPTP_CALL * pptp_call_open(PPTP_CONN * conn, int call_id,pptp_call_cb callback,
-+        char *phonenr,int window)
-+{
-+    PPTP_CALL * call;
-+    int idx, rc;
-+    /* Send off the call request */
-+    struct pptp_out_call_rqst packet = {
-+        PPTP_HEADER_CTRL(PPTP_OUT_CALL_RQST),
-+        0,0, /*call_id, sernum */
-+        hton32(PPTP_BPS_MIN), hton32(PPTP_BPS_MAX),
-+        hton32(PPTP_BEARER_CAP), hton32(PPTP_FRAME_CAP),
-+        hton16(window), 0, 0, 0, {0}, {0}
-+    };
-+    assert(conn && conn->call);
-+    assert(conn->conn_state == CONN_ESTABLISHED);
-+    /* Assign call id */
-+    if (!call_id && !vector_scan(conn->call, 0, PPTP_MAX_CHANNELS - 1, &call_id))
-+        /* no more calls available! */
-+        return NULL;
-+    /* allocate structure. */
-+    if ((call = malloc(sizeof(*call))) == NULL) return NULL;
-+    /* Initialize call structure */
-+    call->call_type = PPTP_CALL_PNS;
-+    call->state.pns = PNS_IDLE;
-+    call->call_id   = (u_int16_t) call_id;
-+    call->sernum    = conn->call_serial_number++;
-+    call->callback  = callback;
-+    call->closure   = NULL;
-+    packet.call_id = htons(call->call_id);
-+    packet.call_sernum = htons(call->sernum);
-+    /* if we have a quirk, build a new packet to fit it */
-+    idx = get_quirk_index();
-+    if (idx != -1 && pptp_fixups[idx].out_call_rqst_hook) {
-+        if ((rc = pptp_fixups[idx].out_call_rqst_hook(&packet)))
-+            warn("calling the out_call_rqst hook failed (%d)", rc);
-+    }
-+    /* fill in the phone number if it was specified */
-+    if (phonenr) {
-+        strncpy(packet.phone_num, phonenr, sizeof(packet.phone_num));
-+        packet.phone_len = strlen(phonenr);
-+        if( packet.phone_len > sizeof(packet.phone_num))
-+            packet.phone_len = sizeof(packet.phone_num);
-+        packet.phone_len = hton16 (packet.phone_len);
-+    }
-+    if (pptp_send_ctrl_packet(conn, &packet, sizeof(packet))) {
-+        pptp_reset_timer();
-+        call->state.pns = PNS_WAIT_REPLY;
-+        /* and add it to the call vector */
-+        vector_insert(conn->call, call_id, call);
-+        return call;
-+    } else { /* oops, unsuccessful. Deallocate. */
-+        free(call);
-+        return NULL;
-+    }
-+}
-+
-+/*** pptp_call_close **********************************************************/
-+void pptp_call_close(PPTP_CONN * conn, PPTP_CALL * call)
-+{
-+    struct pptp_call_clear_rqst rqst = {
-+        PPTP_HEADER_CTRL(PPTP_CALL_CLEAR_RQST), 0, 0
-+    };
-+    assert(conn && conn->call); assert(call);
-+    assert(vector_contains(conn->call, call->call_id));
-+    /* haven't thought about PAC yet */
-+    assert(call->call_type == PPTP_CALL_PNS);
-+    assert(call->state.pns != PNS_IDLE);
-+    rqst.call_id = hton16(call->call_id);
-+    /* don't check state against WAIT_DISCONNECT... allow multiple disconnect
-+     * requests to be made.
-+     */
-+    pptp_send_ctrl_packet(conn, &rqst, sizeof(rqst));
-+    pptp_reset_timer();
-+    call->state.pns = PNS_WAIT_DISCONNECT;
-+    /* call structure will be freed when we have confirmation of disconnect. */
-+}
-+
-+/*** hard close ***************************************************************/
-+void pptp_call_destroy(PPTP_CONN *conn, PPTP_CALL *call)
-+{
-+    assert(conn && conn->call); assert(call);
-+    assert(vector_contains(conn->call, call->call_id));
-+    /* notify */
-+    if (call->callback != NULL) call->callback(conn, call, CALL_CLOSE_DONE);
-+    /* deallocate */
-+    vector_remove(conn->call, call->call_id);
-+    free(call);
-+}
-+
-+/*** this is a soft close *****************************************************/
-+void pptp_conn_close(PPTP_CONN * conn, u_int8_t close_reason)
-+{
-+    struct pptp_stop_ctrl_conn rqst = {
-+        PPTP_HEADER_CTRL(PPTP_STOP_CTRL_CONN_RQST),
-+        hton8(close_reason), 0, 0
-+    };
-+    int i;
-+    assert(conn && conn->call);
-+    /* avoid repeated close attempts */
-+    if (conn->conn_state == CONN_IDLE || conn->conn_state == CONN_WAIT_STOP_REPLY)
-+        return;
-+    /* close open calls, if any */
-+    for (i = 0; i < vector_size(conn->call); i++)
-+        pptp_call_close(conn, vector_get_Nth(conn->call, i));
-+    /* now close connection */
-+    info("Closing PPTP connection");
-+    pptp_send_ctrl_packet(conn, &rqst, sizeof(rqst));
-+    pptp_reset_timer(); /* wait 60 seconds for reply */
-+    conn->conn_state = CONN_WAIT_STOP_REPLY;
-+    return;
-+}
-+
-+/*** this is a hard close *****************************************************/
-+void pptp_conn_destroy(PPTP_CONN * conn)
-+{
-+    int i;
-+    assert(conn != NULL); assert(conn->call != NULL);
-+    /* destroy all open calls */
-+    for (i = 0; i < vector_size(conn->call); i++)
-+        pptp_call_destroy(conn, vector_get_Nth(conn->call, i));
-+    /* notify */
-+    if (conn->callback != NULL) conn->callback(conn, CONN_CLOSE_DONE);
-+    sigpipe_close();
-+    close(conn->inet_sock);
-+    /* deallocate */
-+    vector_destroy(conn->call);
-+    free(conn);
-+}
-+
-+/*** Deal with messages, in a non-blocking manner
-+ * Add file descriptors used by pptp to fd_set.
-+ */
-+void pptp_fd_set(PPTP_CONN * conn, fd_set * read_set, fd_set * write_set,
-+                 int * max_fd)
-+{
-+    assert(conn && conn->call);
-+    /* Add fd to write_set if there are outstanding writes. */
-+    if (conn->write_size > 0)
-+        FD_SET(conn->inet_sock, write_set);
-+    /* Always add fd to read_set. (always want something to read) */
-+    FD_SET(conn->inet_sock, read_set);
-+    if (*max_fd < conn->inet_sock) *max_fd = conn->inet_sock;
-+    /* Add signal pipe file descriptor to set */
-+    int sig_fd = sigpipe_fd();
-+    FD_SET(sig_fd, read_set);
-+    if (*max_fd < sig_fd) *max_fd = sig_fd;
-+}
-+
-+/*** handle any pptp file descriptors set in fd_set, and clear them ***********/
-+int pptp_dispatch(PPTP_CONN * conn, fd_set * read_set, fd_set * write_set)
-+{
-+    int r = 0;
-+    assert(conn && conn->call);
-+    /* Check for signals */
-+    if (FD_ISSET(sigpipe_fd(), read_set)) {
-+        if (sigpipe_read() == SIGALRM) pptp_handle_timer();
-+	FD_CLR(sigpipe_fd(), read_set);
-+    }
-+    /* Check write_set could be set. */
-+    if (FD_ISSET(conn->inet_sock, write_set)) {
-+        FD_CLR(conn->inet_sock, write_set);
-+        if (conn->write_size > 0)
-+            r = pptp_write_some(conn);/* write as much as we can without blocking */
-+    }
-+    /* Check read_set */
-+    if (r >= 0 && FD_ISSET(conn->inet_sock, read_set)) {
-+        void *buffer; size_t size;
-+        FD_CLR(conn->inet_sock, read_set);
-+        r = pptp_read_some(conn); /* read as much as we can without blocking */
-+	if (r < 0)
-+	    return r;
-+        /* make packets of the buffer, while we can. */
-+        while (r >= 0 && pptp_make_packet(conn, &buffer, &size)) {
-+            r = pptp_dispatch_packet(conn, buffer, size);
-+            free(buffer);
-+        }
-+    }
-+    /* That's all, folks.  Simple, eh? */
-+    return r;
-+}
-+
-+/*** Non-blocking write *******************************************************/
-+int pptp_write_some(PPTP_CONN * conn) {
-+    ssize_t retval;
-+    assert(conn && conn->call);
-+    retval = write(conn->inet_sock, conn->write_buffer, conn->write_size);
-+    if (retval < 0) { /* error. */
-+        if (errno == EAGAIN || errno == EINTR) {
-+            return 0;
-+        } else { /* a real error */
-+            warn("write error: %s", strerror(errno));
-+	    return -1;
-+        }
-+    }
-+    assert(retval <= conn->write_size);
-+    conn->write_size -= retval;
-+    memmove(conn->write_buffer, conn->write_buffer + retval, conn->write_size);
-+    ctrlp_rep(conn->write_buffer, retval, 0);
-+    return 0;
-+}
-+
-+/*** Non-blocking read ********************************************************/
-+int pptp_read_some(PPTP_CONN * conn)
-+{
-+    ssize_t retval;
-+    assert(conn && conn->call);
-+    if (conn->read_size == conn->read_alloc) { /* need to alloc more memory */
-+        char *new_buffer = realloc(conn->read_buffer,
-+                sizeof(*(conn->read_buffer)) * conn->read_alloc * 2);
-+        if (new_buffer == NULL) {
-+            warn("Out of memory"); return -1;
-+        }
-+        conn->read_alloc *= 2;
-+        conn->read_buffer = new_buffer;
-+    }
-+    retval = read(conn->inet_sock, conn->read_buffer + conn->read_size,
-+            conn->read_alloc  - conn->read_size);
-+    if (retval == 0) {
-+        warn("read returned zero, peer has closed");
-+        return -1;
-+    }
-+    if (retval < 0) {
-+        if (errno == EINTR || errno == EAGAIN)
-+	    return 0;
-+        else { /* a real error */
-+            warn("read error: %s", strerror(errno));
-+            return -1;
-+        }
-+    }
-+    conn->read_size += retval;
-+    assert(conn->read_size <= conn->read_alloc);
-+    return 0;
-+}
-+
-+/*** Packet formation *********************************************************/
-+int pptp_make_packet(PPTP_CONN * conn, void **buf, size_t *size)
-+{
-+    struct pptp_header *header;
-+    size_t bad_bytes = 0;
-+    assert(conn && conn->call); assert(buf != NULL); assert(size != NULL);
-+    /* Give up unless there are at least sizeof(pptp_header) bytes */
-+    while ((conn->read_size-bad_bytes) >= sizeof(struct pptp_header)) {
-+        /* Throw out bytes until we have a valid header. */
-+        header = (struct pptp_header *) (conn->read_buffer + bad_bytes);
-+        if (ntoh32(header->magic) != PPTP_MAGIC) goto throwitout;
-+        if (ntoh16(header->reserved0) != 0)
-+            warn("reserved0 field is not zero! (0x%x) Cisco feature? \n",
-+                    ntoh16(header->reserved0));
-+        if (ntoh16(header->length) < sizeof(struct pptp_header)) goto throwitout;
-+        if (ntoh16(header->length) > PPTP_CTRL_SIZE_MAX) goto throwitout;
-+        /* well.  I guess it's good. Let's see if we've got it all. */
-+        if (ntoh16(header->length) > (conn->read_size-bad_bytes))
-+            /* nope.  Let's wait until we've got it, then. */
-+            goto flushbadbytes;
-+        /* One last check: */
-+        if ((ntoh16(header->pptp_type) == PPTP_MESSAGE_CONTROL) &&
-+                (ntoh16(header->length) !=
-+                         PPTP_CTRL_SIZE(ntoh16(header->ctrl_type))))
-+            goto throwitout;
-+        /* well, I guess we've got it. */
-+        *size = ntoh16(header->length);
-+        *buf = malloc(*size);
-+        if (*buf == NULL) { warn("Out of memory."); return 0; /* ack! */ }
-+        memcpy(*buf, conn->read_buffer + bad_bytes, *size);
-+        /* Delete this packet from the read_buffer. */
-+        conn->read_size -= (bad_bytes + *size);
-+        memmove(conn->read_buffer, conn->read_buffer + bad_bytes + *size,
-+                conn->read_size);
-+        if (bad_bytes > 0)
-+            warn("%lu bad bytes thrown away.", (unsigned long) bad_bytes);
-+        return 1;
-+throwitout:
-+        bad_bytes++;
-+    }
-+flushbadbytes:
-+    /* no more packets.  Let's get rid of those bad bytes */
-+    conn->read_size -= bad_bytes;
-+    memmove(conn->read_buffer, conn->read_buffer + bad_bytes, conn->read_size);
-+    if (bad_bytes > 0)
-+        warn("%lu bad bytes thrown away.", (unsigned long) bad_bytes);
-+    return 0;
-+}
-+
-+/*** pptp_send_ctrl_packet ****************************************************/
-+int pptp_send_ctrl_packet(PPTP_CONN * conn, void * buffer, size_t size)
-+{
-+    assert(conn && conn->call); assert(buffer);
-+    if( conn->write_size > 0) pptp_write_some( conn);
-+    if( conn->write_size == 0) {
-+        ssize_t retval;
-+        retval = write(conn->inet_sock, buffer, size);
-+        if (retval < 0) { /* error. */
-+            if (errno == EAGAIN || errno == EINTR) {
-+                /* ignore */;
-+                retval = 0;
-+            } else { /* a real error */
-+                warn("write error: %s", strerror(errno));
-+                pptp_conn_destroy(conn); /* shut down fast. */
-+                return 0;
-+            }
-+        }
-+        ctrlp_rep( buffer, retval, 0);
-+        size -= retval;
-+        if( size <= 0) return 1;
-+    }
-+    /* Shove anything not written into the write buffer */
-+    if (conn->write_size + size > conn->write_alloc) { /* need more memory */
-+        char *new_buffer = realloc(conn->write_buffer,
-+                sizeof(*(conn->write_buffer)) * conn->write_alloc * 2);
-+        if (new_buffer == NULL) {
-+            warn("Out of memory"); return 0;
-+        }
-+        conn->write_alloc *= 2;
-+        conn->write_buffer = new_buffer;
-+    }
-+    memcpy(conn->write_buffer + conn->write_size, buffer, size);
-+    conn->write_size += size;
-+    ctrlp_rep( buffer,size,1);
-+    return 1;
-+}
-+
-+/*** Packet Dispatch **********************************************************/
-+int pptp_dispatch_packet(PPTP_CONN * conn, void * buffer, size_t size)
-+{
-+    int r = 0;
-+    struct pptp_header *header = (struct pptp_header *)buffer;
-+    assert(conn && conn->call); assert(buffer);
-+    assert(ntoh32(header->magic) == PPTP_MAGIC);
-+    assert(ntoh16(header->length) == size);
-+    switch (ntoh16(header->pptp_type)) {
-+        case PPTP_MESSAGE_CONTROL:
-+            r = ctrlp_disp(conn, buffer, size);
-+            break;
-+        case PPTP_MESSAGE_MANAGE:
-+            /* MANAGEMENT messages aren't even part of the spec right now. */
-+            dbglog("PPTP management message received, but not understood.");
-+            break;
-+        default:
-+            dbglog("Unknown PPTP control message type received: %u",
-+                    (unsigned int) ntoh16(header->pptp_type));
-+            break;
-+    }
-+    return r;
-+}
-+
-+/*** log echo request/replies *************************************************/
-+static void logecho( int type)
-+{
-+    /* hack to stop flooding the log files (the most interesting part is right
-+     * after the connection built-up) */
-+    if( nlogecho > 0) {
-+        dbglog("Echo Re%s received.", type == PPTP_ECHO_RQST ? "quest" :"ply");
-+        if( --nlogecho == 0)
-+            dbglog("no more Echo Reply/Request packets will be reported.");
-+    }
-+}
-+
-+/*** pptp_dispatch_ctrl_packet ************************************************/
-+int ctrlp_disp(PPTP_CONN * conn, void * buffer, size_t size)
-+{
-+    struct pptp_header *header = (struct pptp_header *)buffer;
-+    u_int8_t close_reason = PPTP_STOP_NONE;
-+    assert(conn && conn->call); assert(buffer);
-+    assert(ntoh32(header->magic) == PPTP_MAGIC);
-+    assert(ntoh16(header->length) == size);
-+    assert(ntoh16(header->pptp_type) == PPTP_MESSAGE_CONTROL);
-+    if (size < PPTP_CTRL_SIZE(ntoh16(header->ctrl_type))) {
-+        warn("Invalid packet received [type: %d; length: %d].",
-+                (int) ntoh16(header->ctrl_type), (int) size);
-+        return 0;
-+    }
-+    switch (ntoh16(header->ctrl_type)) {
-+        /* ----------- STANDARD Start-Session MESSAGES ------------ */
-+        case PPTP_START_CTRL_CONN_RQST:
-+        {
-+            struct pptp_start_ctrl_conn *packet =
-+                (struct pptp_start_ctrl_conn *) buffer;
-+            struct pptp_start_ctrl_conn reply = {
-+                PPTP_HEADER_CTRL(PPTP_START_CTRL_CONN_RPLY),
-+                hton16(PPTP_VERSION), 0, 0,
-+                hton32(PPTP_FRAME_CAP), hton32(PPTP_BEARER_CAP),
-+                hton16(PPTP_MAX_CHANNELS), hton16(PPTP_FIRMWARE_VERSION),
-+                PPTP_HOSTNAME, PPTP_VENDOR };
-+            int idx, rc;
-+            dbglog("Received Start Control Connection Request");
-+            /* fix this packet, if necessary */
-+            idx = get_quirk_index();
-+            if (idx != -1 && pptp_fixups[idx].start_ctrl_conn) {
-+                if ((rc = pptp_fixups[idx].start_ctrl_conn(&reply)))
-+                    warn("calling the start_ctrl_conn hook failed (%d)", rc);
-+            }
-+            if (conn->conn_state == CONN_IDLE) {
-+                if (ntoh16(packet->version) < PPTP_VERSION) {
-+                    /* Can't support this (earlier) PPTP_VERSION */
-+                    reply.version = packet->version;
-+                    /* protocol version not supported */
-+                    reply.result_code = hton8(5);
-+                    pptp_send_ctrl_packet(conn, &reply, sizeof(reply));
-+                    pptp_reset_timer(); /* give sender a chance for a retry */
-+                } else { /* same or greater version */
-+                    if (pptp_send_ctrl_packet(conn, &reply, sizeof(reply))) {
-+                        conn->conn_state = CONN_ESTABLISHED;
-+                        dbglog("server connection ESTABLISHED.");
-+                        pptp_reset_timer();
-+                    }
-+                }
-+            }
-+            break;
-+        }
-+        case PPTP_START_CTRL_CONN_RPLY:
-+        {
-+            struct pptp_start_ctrl_conn *packet =
-+                (struct pptp_start_ctrl_conn *) buffer;
-+            dbglog("Received Start Control Connection Reply");
-+            if (conn->conn_state == CONN_WAIT_CTL_REPLY) {
-+                /* XXX handle collision XXX [see rfc] */
-+                if (ntoh16(packet->version) != PPTP_VERSION) {
-+                    if (conn->callback != NULL)
-+                        conn->callback(conn, CONN_OPEN_FAIL);
-+                    close_reason = PPTP_STOP_PROTOCOL;
-+                    goto pptp_conn_close;
-+                }
-+                if (ntoh8(packet->result_code) != 1 &&
-+                    /* J'ai change le if () afin que la connection ne se ferme
-+                     * pas pour un "rien" :p adel@cybercable.fr -
-+                     *
-+                     * Don't close the connection if the result code is zero
-+                     * (feature found in certain ADSL modems)
-+                     */
-+                        ntoh8(packet->result_code) != 0) {
-+                    dbglog("Negative reply received to our Start Control "
-+                            "Connection Request");
-+                    ctrlp_error(packet->result_code, packet->error_code,
-+                            -1, pptp_start_ctrl_conn_rply,
-+                            MAX_START_CTRL_CONN_REPLY);
-+                    if (conn->callback != NULL)
-+                        conn->callback(conn, CONN_OPEN_FAIL);
-+                    close_reason = PPTP_STOP_PROTOCOL;
-+                    goto pptp_conn_close;
-+                }
-+                conn->conn_state = CONN_ESTABLISHED;
-+                /* log session properties */
-+                conn->version      = ntoh16(packet->version);
-+                conn->firmware_rev = ntoh16(packet->firmware_rev);
-+                memcpy(conn->hostname, packet->hostname, sizeof(conn->hostname));
-+                memcpy(conn->vendor, packet->vendor, sizeof(conn->vendor));
-+                pptp_reset_timer(); /* 60 seconds until keep-alive */
-+                dbglog("Client connection established.");
-+                if (conn->callback != NULL)
-+                    conn->callback(conn, CONN_OPEN_DONE);
-+            } /* else goto pptp_conn_close; */
-+            break;
-+        }
-+            /* ----------- STANDARD Stop-Session MESSAGES ------------ */
-+        case PPTP_STOP_CTRL_CONN_RQST:
-+        {
-+            /* conn_state should be CONN_ESTABLISHED, but it could be
-+             * something else */
-+            struct pptp_stop_ctrl_conn reply = {
-+                PPTP_HEADER_CTRL(PPTP_STOP_CTRL_CONN_RPLY),
-+                hton8(1), hton8(PPTP_GENERAL_ERROR_NONE), 0
-+            };
-+            dbglog("Received Stop Control Connection Request.");
-+            if (conn->conn_state == CONN_IDLE) break;
-+            if (pptp_send_ctrl_packet(conn, &reply, sizeof(reply))) {
-+                if (conn->callback != NULL)
-+                    conn->callback(conn, CONN_CLOSE_RQST);
-+                conn->conn_state = CONN_IDLE;
-+		return -1;
-+            }
-+            break;
-+        }
-+        case PPTP_STOP_CTRL_CONN_RPLY:
-+        {
-+            dbglog("Received Stop Control Connection Reply.");
-+            /* conn_state should be CONN_WAIT_STOP_REPLY, but it
-+             * could be something else */
-+            if (conn->conn_state == CONN_IDLE) break;
-+            conn->conn_state = CONN_IDLE;
-+	    return -1;
-+        }
-+            /* ----------- STANDARD Echo/Keepalive MESSAGES ------------ */
-+        case PPTP_ECHO_RPLY:
-+        {
-+            struct pptp_echo_rply *packet =
-+                (struct pptp_echo_rply *) buffer;
-+            logecho( PPTP_ECHO_RPLY);
-+            if ((conn->ka_state == KA_OUTSTANDING) &&
-+                    (ntoh32(packet->identifier) == conn->ka_id)) {
-+                conn->ka_id++;
-+                conn->ka_state = KA_NONE;
-+                pptp_reset_timer();
-+            }
-+            break;
-+        }
-+        case PPTP_ECHO_RQST:
-+        {
-+            struct pptp_echo_rqst *packet =
-+                (struct pptp_echo_rqst *) buffer;
-+            struct pptp_echo_rply reply = {
-+                PPTP_HEADER_CTRL(PPTP_ECHO_RPLY),
-+                packet->identifier, /* skip hton32(ntoh32(id)) */
-+                hton8(1), hton8(PPTP_GENERAL_ERROR_NONE), 0
-+            };
-+            logecho( PPTP_ECHO_RQST);
-+            pptp_send_ctrl_packet(conn, &reply, sizeof(reply));
-+            pptp_reset_timer();
-+            break;
-+        }
-+            /* ----------- OUTGOING CALL MESSAGES ------------ */
-+        case PPTP_OUT_CALL_RQST:
-+        {
-+            struct pptp_out_call_rqst *packet =
-+                (struct pptp_out_call_rqst *)buffer;
-+            struct pptp_out_call_rply reply = {
-+                PPTP_HEADER_CTRL(PPTP_OUT_CALL_RPLY),
-+                0 /* callid */, packet->call_id, 1, PPTP_GENERAL_ERROR_NONE, 0,
-+                hton32(PPTP_CONNECT_SPEED),
-+                hton16(PPTP_WINDOW), hton16(PPTP_DELAY), 0
-+            };
-+            dbglog("Received Outgoing Call Request.");
-+            /* XXX PAC: eventually this should make an outgoing call. XXX */
-+            reply.result_code = hton8(7); /* outgoing calls verboten */
-+            pptp_send_ctrl_packet(conn, &reply, sizeof(reply));
-+            break;
-+        }
-+        case PPTP_OUT_CALL_RPLY:
-+        {
-+            struct pptp_out_call_rply *packet =
-+                (struct pptp_out_call_rply *)buffer;
-+            PPTP_CALL * call;
-+            u_int16_t callid = ntoh16(packet->call_id_peer);
-+            dbglog("Received Outgoing Call Reply.");
-+            if (!vector_search(conn->call, (int) callid, &call)) {
-+                dbglog("PPTP_OUT_CALL_RPLY received for non-existant call: "
-+                        "peer call ID (us)  %d call ID (them) %d.",
-+                        callid, ntoh16(packet->call_id));
-+                break;
-+            }
-+            if (call->call_type != PPTP_CALL_PNS) {
-+                dbglog("Ack!  How did this call_type get here?"); /* XXX? */
-+                break;
-+            }
-+            if (call->state.pns != PNS_WAIT_REPLY) {
-+                warn("Unexpected(?) Outgoing Call Reply will be ignored.");
-+                break;
-+            }
-+            /* check for errors */
-+            if (packet->result_code != 1) {
-+                /* An error.  Log it verbosely. */
-+                dbglog("Our outgoing call request [callid %d] has not been "
-+                        "accepted.", (int) callid);
-+                ctrlp_error(packet->result_code, packet->error_code,
-+                        packet->cause_code, pptp_out_call_reply_result,
-+                        MAX_OUT_CALL_REPLY_RESULT);
-+                call->state.pns = PNS_IDLE;
-+                if (call->callback != NULL)
-+                    call->callback(conn, call, CALL_OPEN_FAIL);
-+                pptp_call_destroy(conn, call);
-+            } else {
-+                /* connection established */
-+                call->state.pns = PNS_ESTABLISHED;
-+                call->peer_call_id = ntoh16(packet->call_id);
-+                call->speed        = ntoh32(packet->speed);
-+                pptp_reset_timer();
-+                /* call pptp_set_link. unless the user specified a quirk
-+                   and this quirk has a set_link hook, this is a noop */
-+                pptp_set_link(conn, call->peer_call_id);
-+                if (call->callback != NULL)
-+                    call->callback(conn, call, CALL_OPEN_DONE);
-+                dbglog("Outgoing call established (call ID %u, peer's "
-+                        "call ID %u).\n", call->call_id, call->peer_call_id);
-+            }
-+            break;
-+        }
-+            /* ----------- INCOMING CALL MESSAGES ------------ */
-+            /* XXX write me XXX */
-+            /* ----------- CALL CONTROL MESSAGES ------------ */
-+        case PPTP_CALL_CLEAR_RQST:
-+        {
-+            struct pptp_call_clear_rqst *packet =
-+                (struct pptp_call_clear_rqst *)buffer;
-+            struct pptp_call_clear_ntfy reply = {
-+                PPTP_HEADER_CTRL(PPTP_CALL_CLEAR_NTFY), packet->call_id,
-+                1, PPTP_GENERAL_ERROR_NONE, 0, 0, {0}
-+            };
-+            dbglog("Received Call Clear Request.");
-+            if (vector_contains(conn->call, ntoh16(packet->call_id))) {
-+                PPTP_CALL * call;
-+                vector_search(conn->call, ntoh16(packet->call_id), &call);
-+                if (call->callback != NULL)
-+                    call->callback(conn, call, CALL_CLOSE_RQST);
-+                pptp_send_ctrl_packet(conn, &reply, sizeof(reply));
-+                pptp_call_destroy(conn, call);
-+                dbglog("Call closed (RQST) (call id %d)", (int) call->call_id);
-+            }
-+            break;
-+        }
-+        case PPTP_CALL_CLEAR_NTFY:
-+        {
-+            struct pptp_call_clear_ntfy *packet =
-+                (struct pptp_call_clear_ntfy *)buffer;
-+            dbglog("Call disconnect notification received (call id %d)",
-+                    ntoh16(packet->call_id));
-+            if (vector_contains(conn->call, ntoh16(packet->call_id))) {
-+                PPTP_CALL * call;
-+                ctrlp_error(packet->result_code, packet->error_code,
-+                        packet->cause_code, pptp_call_disc_ntfy,
-+                        MAX_CALL_DISC_NTFY);
-+                vector_search(conn->call, ntoh16(packet->call_id), &call);
-+                pptp_call_destroy(conn, call);
-+            }
-+            /* XXX we could log call stats here XXX */
-+            /* XXX not all servers send this XXX */
-+            break;
-+        }
-+        case PPTP_SET_LINK_INFO:
-+        {
-+            /* I HAVE NO CLUE WHAT TO DO IF send_accm IS NOT 0! */
-+            /* this is really dealt with in the HDLC deencapsulation, anyway. */
-+            struct pptp_set_link_info *packet =
-+                (struct pptp_set_link_info *)buffer;
-+            /* log it. */
-+            dbglog("PPTP_SET_LINK_INFO received from peer_callid %u",
-+                    (unsigned int) ntoh16(packet->call_id_peer));
-+            dbglog("  send_accm is %08lX, recv_accm is %08lX",
-+                    (unsigned long) ntoh32(packet->send_accm),
-+                    (unsigned long) ntoh32(packet->recv_accm));
-+            if (!(ntoh32(packet->send_accm) == 0 &&
-+                    ntoh32(packet->recv_accm) == 0))
-+                warn("Non-zero Async Control Character Maps are not supported!");
-+            break;
-+        }
-+        default:
-+            dbglog("Unrecognized Packet %d received.",
-+                    (int) ntoh16(((struct pptp_header *)buffer)->ctrl_type));
-+            /* goto pptp_conn_close; */
-+            break;
-+    }
-+    return 0;
-+pptp_conn_close:
-+    warn("pptp_conn_close(%d)", (int) close_reason);
-+    pptp_conn_close(conn, close_reason);
-+    return 0;
-+}
-+
-+/*** pptp_set_link **************************************************************/
-+void pptp_set_link(PPTP_CONN* conn, int peer_call_id)
-+{
-+    int idx, rc;
-+    /* if we need to send a set_link packet because of buggy
-+       hardware or pptp server, do it now */
-+    if ((idx = get_quirk_index()) != -1 && pptp_fixups[idx].set_link_hook) {
-+        struct pptp_set_link_info packet;
-+        if ((rc = pptp_fixups[idx].set_link_hook(&packet, peer_call_id)))
-+            warn("calling the set_link hook failed (%d)", rc);
-+        if (pptp_send_ctrl_packet(conn, &packet, sizeof(packet))) {
-+            pptp_reset_timer();
-+        }
-+    }
-+}
-+
-+/*** Get info from call structure *********************************************/
-+/* NOTE: The peer_call_id is undefined until we get a server response. */
-+void pptp_call_get_ids(PPTP_CONN * conn, PPTP_CALL * call,
-+		       u_int16_t * call_id, u_int16_t * peer_call_id)
-+{
-+    assert(conn != NULL); assert(call != NULL);
-+    *call_id = call->call_id;
-+    *peer_call_id = call->peer_call_id;
-+}
-+
-+/*** pptp_call_closure_put ****************************************************/
-+void   pptp_call_closure_put(PPTP_CONN * conn, PPTP_CALL * call, void *cl)
-+{
-+    assert(conn != NULL); assert(call != NULL);
-+    call->closure = cl;
-+}
-+
-+/*** pptp_call_closure_get ****************************************************/
-+void * pptp_call_closure_get(PPTP_CONN * conn, PPTP_CALL * call)
-+{
-+    assert(conn != NULL); assert(call != NULL);
-+    return call->closure;
-+}
-+
-+/*** pptp_conn_closure_put ****************************************************/
-+void   pptp_conn_closure_put(PPTP_CONN * conn, void *cl)
-+{
-+    assert(conn != NULL);
-+    conn->closure = cl;
-+}
-+
-+/*** pptp_conn_closure_get ****************************************************/
-+void * pptp_conn_closure_get(PPTP_CONN * conn)
-+{
-+    assert(conn != NULL);
-+    return conn->closure;
-+}
-+
-+/*** Reset keep-alive timer ***************************************************/
-+static void pptp_reset_timer(void)
-+{
-+    const struct itimerval tv = { {  0, 0 },   /* stop on time-out */
-+        { idle_wait, 0 } };
-+    if (idle_wait) setitimer(ITIMER_REAL, &tv, NULL);
-+}
-+
-+
-+/*** Handle keep-alive timer **************************************************/
-+static void pptp_handle_timer()
-+{
-+    int i;
-+    /* "Keep Alives and Timers, 1": check connection state */
-+    if (global.conn->conn_state != CONN_ESTABLISHED) {
-+        if (global.conn->conn_state == CONN_WAIT_STOP_REPLY)
-+            /* hard close. */
-+            pptp_conn_destroy(global.conn);
-+        else /* soft close */
-+            pptp_conn_close(global.conn, PPTP_STOP_NONE);
-+    }
-+    /* "Keep Alives and Timers, 2": check echo status */
-+    if (global.conn->ka_state == KA_OUTSTANDING) {
-+        /* no response to keep-alive */
-+        info("closing control connection due to missing echo reply");
-+	pptp_conn_close(global.conn, PPTP_STOP_NONE);
-+    } else { /* ka_state == NONE */ /* send keep-alive */
-+        struct pptp_echo_rqst rqst = {
-+            PPTP_HEADER_CTRL(PPTP_ECHO_RQST), hton32(global.conn->ka_id) };
-+        pptp_send_ctrl_packet(global.conn, &rqst, sizeof(rqst));
-+        global.conn->ka_state = KA_OUTSTANDING;
-+    }
-+    /* check incoming/outgoing call states for !IDLE && !ESTABLISHED */
-+    for (i = 0; i < vector_size(global.conn->call); i++) {
-+        PPTP_CALL * call = vector_get_Nth(global.conn->call, i);
-+        if (call->call_type == PPTP_CALL_PNS) {
-+            if (call->state.pns == PNS_WAIT_REPLY) {
-+                /* send close request */
-+                pptp_call_close(global.conn, call);
-+                assert(call->state.pns == PNS_WAIT_DISCONNECT);
-+            } else if (call->state.pns == PNS_WAIT_DISCONNECT) {
-+                /* hard-close the call */
-+                pptp_call_destroy(global.conn, call);
-+            }
-+        } else if (call->call_type == PPTP_CALL_PAC) {
-+            if (call->state.pac == PAC_WAIT_REPLY) {
-+                /* XXX FIXME -- drop the PAC connection XXX */
-+            } else if (call->state.pac == PAC_WAIT_CS_ANS) {
-+                /* XXX FIXME -- drop the PAC connection XXX */
-+            }
-+        }
-+    }
-+    pptp_reset_timer();
-+}
---- /dev/null
-+++ b/pppd/plugins/pptp/pptp_ctrl.h
-@@ -0,0 +1,57 @@
-+/* pptp_ctrl.h ... handle PPTP control connection.
-+ *                 C. Scott Ananian <cananian@alumni.princeton.edu>
-+ *
-+ * $Id: pptp_ctrl.h,v 1.5 2004/11/09 01:42:32 quozl Exp $
-+ */
-+
-+#ifndef INC_PPTP_CTRL_H
-+#define INC_PPTP_CTRL_H
-+#include <sys/types.h>
-+
-+typedef struct PPTP_CONN PPTP_CONN;
-+typedef struct PPTP_CALL PPTP_CALL;
-+
-+enum call_state { CALL_OPEN_RQST,  CALL_OPEN_DONE, CALL_OPEN_FAIL,
-+		  CALL_CLOSE_RQST, CALL_CLOSE_DONE };
-+enum conn_state { CONN_OPEN_RQST,  CONN_OPEN_DONE, CONN_OPEN_FAIL,
-+		  CONN_CLOSE_RQST, CONN_CLOSE_DONE };
-+
-+typedef void (*pptp_call_cb)(PPTP_CONN*, PPTP_CALL*, enum call_state);
-+typedef void (*pptp_conn_cb)(PPTP_CONN*, enum conn_state);
-+
-+/* if 'isclient' is true, then will send 'conn open' packet to other host.
-+ * not necessary if this is being opened by a server process after
-+ * receiving a conn_open packet from client.
-+ */
-+PPTP_CONN * pptp_conn_open(int inet_sock, int isclient,
-+			   pptp_conn_cb callback);
-+PPTP_CALL * pptp_call_open(PPTP_CONN * conn, int call_id,
-+			   pptp_call_cb callback, char *phonenr,int window);
-+int pptp_conn_established(PPTP_CONN * conn);
-+/* soft close.  Will callback on completion. */
-+void pptp_call_close(PPTP_CONN * conn, PPTP_CALL * call);
-+/* hard close. */
-+void pptp_call_destroy(PPTP_CONN *conn, PPTP_CALL *call);
-+/* soft close.  Will callback on completion. */
-+void pptp_conn_close(PPTP_CONN * conn, u_int8_t close_reason);
-+/* hard close */
-+void pptp_conn_destroy(PPTP_CONN * conn);
-+
-+/* Add file descriptors used by pptp to fd_set. */
-+void pptp_fd_set(PPTP_CONN * conn, fd_set * read_set, fd_set * write_set, int *max_fd);
-+/* handle any pptp file descriptors set in fd_set, and clear them */
-+int pptp_dispatch(PPTP_CONN * conn, fd_set * read_set, fd_set * write_set);
-+
-+/* Get info about connection, call */
-+void pptp_call_get_ids(PPTP_CONN * conn, PPTP_CALL * call,
-+		       u_int16_t * call_id, u_int16_t * peer_call_id);
-+/* Arbitrary user data about this call/connection.
-+ * It is the caller's responsibility to free this data before calling
-+ * pptp_call|conn_close()
-+ */
-+void * pptp_conn_closure_get(PPTP_CONN * conn);
-+void   pptp_conn_closure_put(PPTP_CONN * conn, void *cl);
-+void * pptp_call_closure_get(PPTP_CONN * conn, PPTP_CALL * call);
-+void   pptp_call_closure_put(PPTP_CONN * conn, PPTP_CALL * call, void *cl);
-+
-+#endif /* INC_PPTP_CTRL_H */
---- /dev/null
-+++ b/pppd/plugins/pptp/pptp_msg.h
-@@ -0,0 +1,303 @@
-+/*  pptp.h:  packet structures and magic constants for the PPTP protocol 
-+ *           C. Scott Ananian <cananian@alumni.princeton.edu>            
-+ *
-+ * $Id: pptp_msg.h,v 1.3 2003/02/15 10:37:21 quozl Exp $
-+ */
-+
-+#ifndef INC_PPTP_H
-+#define INC_PPTP_H
-+
-+/* Grab definitions of int16, int32, etc. */
-+#include <sys/types.h>
-+/* define "portable" htons, etc. */
-+#define hton8(x)  (x)
-+#define ntoh8(x)  (x)
-+#define hton16(x) htons(x)
-+#define ntoh16(x) ntohs(x)
-+#define hton32(x) htonl(x)
-+#define ntoh32(x) ntohl(x)
-+
-+/* PPTP magic numbers: ----------------------------------------- */
-+
-+#define PPTP_MAGIC 0x1A2B3C4D /* Magic cookie for PPTP datagrams */
-+#define PPTP_PORT  1723       /* PPTP TCP port number            */
-+#define PPTP_PROTO 47         /* PPTP IP protocol number         */
-+
-+/* Control Connection Message Types: --------------------------- */
-+
-+#define PPTP_MESSAGE_CONTROL		1
-+#define PPTP_MESSAGE_MANAGE		2
-+
-+/* Control Message Types: -------------------------------------- */
-+
-+/* (Control Connection Management) */
-+#define PPTP_START_CTRL_CONN_RQST	1
-+#define PPTP_START_CTRL_CONN_RPLY	2
-+#define PPTP_STOP_CTRL_CONN_RQST	3
-+#define PPTP_STOP_CTRL_CONN_RPLY	4
-+#define PPTP_ECHO_RQST			5
-+#define PPTP_ECHO_RPLY			6
-+
-+/* (Call Management) */
-+#define PPTP_OUT_CALL_RQST		7
-+#define PPTP_OUT_CALL_RPLY		8
-+#define PPTP_IN_CALL_RQST		9
-+#define PPTP_IN_CALL_RPLY		10
-+#define PPTP_IN_CALL_CONNECT		11
-+#define PPTP_CALL_CLEAR_RQST		12
-+#define PPTP_CALL_CLEAR_NTFY		13
-+
-+/* (Error Reporting) */
-+#define PPTP_WAN_ERR_NTFY		14
-+
-+/* (PPP Session Control) */
-+#define PPTP_SET_LINK_INFO		15
-+
-+/* PPTP version information: --------------------------------------*/
-+#define PPTP_VERSION_STRING	"1.00"
-+#define PPTP_VERSION		0x100
-+#define PPTP_FIRMWARE_STRING	"0.01"
-+#define PPTP_FIRMWARE_VERSION	0x001
-+
-+/* PPTP capabilities: ---------------------------------------------*/
-+
-+/* (Framing capabilities for msg sender) */
-+#define PPTP_FRAME_ASYNC	1
-+#define PPTP_FRAME_SYNC		2
-+#define PPTP_FRAME_ANY          3
-+
-+/* (Bearer capabilities for msg sender) */
-+#define PPTP_BEARER_ANALOG	1
-+#define PPTP_BEARER_DIGITAL 	2
-+#define PPTP_BEARER_ANY		3
-+
-+#define PPTP_RESULT_GENERAL_ERROR 2
-+
-+/* (Reasons to close a connection) */
-+#define PPTP_STOP_NONE		  1 /* no good reason                        */
-+#define PPTP_STOP_PROTOCOL	  2 /* can't support peer's protocol version */
-+#define PPTP_STOP_LOCAL_SHUTDOWN  3 /* requester is being shut down          */
-+
-+/* PPTP datagram structures (all data in network byte order): ----------*/
-+
-+struct pptp_header {
-+  u_int16_t length;	  /* message length in octets, including header */
-+  u_int16_t pptp_type;	  /* PPTP message type. 1 for control message.  */
-+  u_int32_t magic;	  /* this should be PPTP_MAGIC.                 */
-+  u_int16_t ctrl_type;	  /* Control message type (0-15)                */
-+  u_int16_t reserved0;	  /* reserved.  MUST BE ZERO.                   */
-+};
-+
-+struct pptp_start_ctrl_conn { /* for control message types 1 and 2 */
-+  struct pptp_header header;
-+
-+  u_int16_t version;      /* PPTP protocol version.  = PPTP_VERSION     */
-+  u_int8_t  result_code;  /* these two fields should be zero on rqst msg*/
-+  u_int8_t  error_code;   /* 0 unless result_code==2 (General Error)    */
-+  u_int32_t framing_cap;  /* Framing capabilities                       */
-+  u_int32_t bearer_cap;   /* Bearer Capabilities                        */
-+  u_int16_t max_channels; /* Maximum Channels (=0 for PNS, PAC ignores) */
-+  u_int16_t firmware_rev; /* Firmware or Software Revision              */
-+  u_int8_t  hostname[64]; /* Host Name (64 octets, zero terminated)     */
-+  u_int8_t  vendor[64];   /* Vendor string (64 octets, zero term.)      */
-+  /* MS says that end of hostname/vendor fields should be filled with   */
-+  /* octets of value 0, but Win95 PPTP driver doesn't do this.          */
-+};
-+
-+struct pptp_stop_ctrl_conn { /* for control message types 3 and 4 */
-+  struct pptp_header header;
-+
-+  u_int8_t reason_result; /* reason for rqst, result for rply          */
-+  u_int8_t error_code;	  /* MUST be 0, unless rply result==2 (general err)*/
-+  u_int16_t reserved1;    /* MUST be 0                                */
-+};
-+
-+struct pptp_echo_rqst { /* for control message type 5 */
-+  struct pptp_header header;
-+  u_int32_t identifier;   /* arbitrary value set by sender which is used */
-+                          /* to match up reply and request               */
-+};
-+
-+struct pptp_echo_rply { /* for control message type 6 */
-+  struct pptp_header header;
-+  u_int32_t identifier;	  /* should correspond to id of rqst             */
-+  u_int8_t result_code;
-+  u_int8_t error_code;    /* =0, unless result_code==2 (general error)   */
-+  u_int16_t reserved1;    /* MUST BE ZERO                                */
-+};
-+
-+struct pptp_out_call_rqst { /* for control message type 7 */
-+  struct pptp_header header;
-+  u_int16_t call_id;	  /* Call ID (unique id used to multiplex data)  */
-+  u_int16_t call_sernum;  /* Call Serial Number (used for logging)       */
-+  u_int32_t bps_min;      /* Minimum BPS (lowest acceptable line speed)  */
-+  u_int32_t bps_max;	  /* Maximum BPS (highest acceptable line speed) */
-+  u_int32_t bearer;	  /* Bearer type                                 */
-+  u_int32_t framing;      /* Framing type                                */
-+  u_int16_t recv_size;	  /* Recv. Window Size (no. of buffered packets) */
-+  u_int16_t delay;	  /* Packet Processing Delay (in 1/10 sec)       */
-+  u_int16_t phone_len;	  /* Phone Number Length (num. of valid digits)  */
-+  u_int16_t reserved1;    /* MUST BE ZERO				 */
-+  u_int8_t  phone_num[64]; /* Phone Number (64 octets, null term.)       */
-+  u_int8_t subaddress[64]; /* Subaddress (64 octets, null term.)         */
-+};
-+
-+struct pptp_out_call_rply { /* for control message type 8 */
-+  struct pptp_header header;
-+  u_int16_t call_id;      /* Call ID (used to multiplex data over tunnel)*/
-+  u_int16_t call_id_peer; /* Peer's Call ID (call_id of pptp_out_call_rqst)*/
-+  u_int8_t  result_code;  /* Result Code (1 is no errors)                */
-+  u_int8_t  error_code;   /* Error Code (=0 unless result_code==2)       */
-+  u_int16_t cause_code;   /* Cause Code (addt'l failure information)     */
-+  u_int32_t speed;        /* Connect Speed (in BPS)                      */
-+  u_int16_t recv_size;    /* Recv. Window Size (no. of buffered packets) */
-+  u_int16_t delay;	  /* Packet Processing Delay (in 1/10 sec)       */
-+  u_int32_t channel;      /* Physical Channel ID (for logging)           */
-+};
-+
-+struct pptp_in_call_rqst { /* for control message type 9 */
-+  struct pptp_header header;
-+  u_int16_t call_id;	  /* Call ID (unique id used to multiplex data)  */
-+  u_int16_t call_sernum;  /* Call Serial Number (used for logging)       */
-+  u_int32_t bearer;	  /* Bearer type                                 */
-+  u_int32_t channel;      /* Physical Channel ID (for logging)           */
-+  u_int16_t dialed_len;   /* Dialed Number Length (# of valid digits)    */
-+  u_int16_t dialing_len;  /* Dialing Number Length (# of valid digits)   */
-+  u_int8_t dialed_num[64]; /* Dialed Number (64 octets, zero term.)      */
-+  u_int8_t dialing_num[64]; /* Dialing Number (64 octets, zero term.)    */
-+  u_int8_t subaddress[64];  /* Subaddress (64 octets, zero term.)        */
-+};
-+
-+struct pptp_in_call_rply { /* for control message type 10 */
-+  struct pptp_header header;
-+  u_int16_t call_id;      /* Call ID (used to multiplex data over tunnel)*/
-+  u_int16_t call_id_peer; /* Peer's Call ID (call_id of pptp_out_call_rqst)*/
-+  u_int8_t  result_code;  /* Result Code (1 is no errors)                */
-+  u_int8_t  error_code;   /* Error Code (=0 unless result_code==2)       */
-+  u_int16_t recv_size;    /* Recv. Window Size (no. of buffered packets) */
-+  u_int16_t delay;	  /* Packet Processing Delay (in 1/10 sec)       */
-+  u_int16_t reserved1;    /* MUST BE ZERO                                */
-+};
-+
-+struct pptp_in_call_connect { /* for control message type 11 */
-+  struct pptp_header header;
-+  u_int16_t call_id_peer; /* Peer's Call ID (call_id of pptp_out_call_rqst)*/
-+  u_int16_t reserved1;    /* MUST BE ZERO                                */
-+  u_int32_t speed;        /* Connect Speed (in BPS)                      */
-+  u_int16_t recv_size;    /* Recv. Window Size (no. of buffered packets) */
-+  u_int16_t delay;	  /* Packet Processing Delay (in 1/10 sec)       */
-+  u_int32_t framing;      /* Framing type                                */
-+};
-+
-+struct pptp_call_clear_rqst { /* for control message type 12 */
-+  struct pptp_header header;
-+  u_int16_t call_id;      /* Call ID (used to multiplex data over tunnel)*/
-+  u_int16_t reserved1;    /* MUST BE ZERO                                */
-+};
-+
-+struct pptp_call_clear_ntfy { /* for control message type 13 */
-+  struct pptp_header header;
-+  u_int16_t call_id;      /* Call ID (used to multiplex data over tunnel)*/
-+  u_int8_t  result_code;  /* Result Code                                 */
-+  u_int8_t  error_code;   /* Error Code (=0 unless result_code==2)       */
-+  u_int16_t cause_code;   /* Cause Code (for ISDN, is Q.931 cause code)  */
-+  u_int16_t reserved1;    /* MUST BE ZERO                                */
-+  u_int8_t call_stats[128]; /* Call Statistics: 128 octets, ascii, 0-term */
-+};
-+
-+struct pptp_wan_err_ntfy {    /* for control message type 14 */
-+  struct pptp_header header;
-+  u_int16_t call_id_peer; /* Peer's Call ID (call_id of pptp_out_call_rqst)*/
-+  u_int16_t reserved1;    /* MUST BE ZERO                                */
-+  u_int32_t crc_errors;   /* CRC errors 				 */
-+  u_int32_t frame_errors; /* Framing errors 				 */
-+  u_int32_t hard_errors;  /* Hardware overruns 				 */
-+  u_int32_t buff_errors;  /* Buffer overruns				 */
-+  u_int32_t time_errors;  /* Time-out errors				 */
-+  u_int32_t align_errors; /* Alignment errors				 */
-+};
-+
-+struct pptp_set_link_info {   /* for control message type 15 */
-+  struct pptp_header header;
-+  u_int16_t call_id_peer; /* Peer's Call ID (call_id of pptp_out_call_rqst) */
-+  u_int16_t reserved1;    /* MUST BE ZERO                                   */
-+  u_int32_t send_accm;    /* Send ACCM (for PPP packets; default 0xFFFFFFFF)*/
-+  u_int32_t recv_accm;    /* Receive ACCM (for PPP pack.;default 0xFFFFFFFF)*/
-+};
-+
-+/* helpful #defines: -------------------------------------------- */
-+#define pptp_isvalid_ctrl(header, type, length) \
-+ (!( ( ntoh16(((struct pptp_header *)header)->length)    < (length)  ) ||   \
-+     ( ntoh16(((struct pptp_header *)header)->pptp_type) !=(type)    ) ||   \
-+     ( ntoh32(((struct pptp_header *)header)->magic)     !=PPTP_MAGIC) ||   \
-+     ( ntoh16(((struct pptp_header *)header)->ctrl_type) > PPTP_SET_LINK_INFO) || \
-+     ( ntoh16(((struct pptp_header *)header)->reserved0) !=0         ) ))
-+
-+#define PPTP_HEADER_CTRL(type)  \
-+{ hton16(PPTP_CTRL_SIZE(type)), \
-+  hton16(PPTP_MESSAGE_CONTROL), \
-+  hton32(PPTP_MAGIC),           \
-+  hton16(type), 0 }             
-+
-+#define PPTP_CTRL_SIZE(type) ( \
-+(type==PPTP_START_CTRL_CONN_RQST)?sizeof(struct pptp_start_ctrl_conn):	\
-+(type==PPTP_START_CTRL_CONN_RPLY)?sizeof(struct pptp_start_ctrl_conn):	\
-+(type==PPTP_STOP_CTRL_CONN_RQST )?sizeof(struct pptp_stop_ctrl_conn):	\
-+(type==PPTP_STOP_CTRL_CONN_RPLY )?sizeof(struct pptp_stop_ctrl_conn):	\
-+(type==PPTP_ECHO_RQST           )?sizeof(struct pptp_echo_rqst):	\
-+(type==PPTP_ECHO_RPLY           )?sizeof(struct pptp_echo_rply):	\
-+(type==PPTP_OUT_CALL_RQST       )?sizeof(struct pptp_out_call_rqst):	\
-+(type==PPTP_OUT_CALL_RPLY       )?sizeof(struct pptp_out_call_rply):	\
-+(type==PPTP_IN_CALL_RQST        )?sizeof(struct pptp_in_call_rqst):	\
-+(type==PPTP_IN_CALL_RPLY        )?sizeof(struct pptp_in_call_rply):	\
-+(type==PPTP_IN_CALL_CONNECT     )?sizeof(struct pptp_in_call_connect):	\
-+(type==PPTP_CALL_CLEAR_RQST     )?sizeof(struct pptp_call_clear_rqst):	\
-+(type==PPTP_CALL_CLEAR_NTFY     )?sizeof(struct pptp_call_clear_ntfy):	\
-+(type==PPTP_WAN_ERR_NTFY        )?sizeof(struct pptp_wan_err_ntfy):	\
-+(type==PPTP_SET_LINK_INFO       )?sizeof(struct pptp_set_link_info):	\
-+0)
-+#define max(a,b) (((a)>(b))?(a):(b))
-+#define PPTP_CTRL_SIZE_MAX (			\
-+max(sizeof(struct pptp_start_ctrl_conn),	\
-+max(sizeof(struct pptp_echo_rqst),		\
-+max(sizeof(struct pptp_echo_rply),		\
-+max(sizeof(struct pptp_out_call_rqst),		\
-+max(sizeof(struct pptp_out_call_rply),		\
-+max(sizeof(struct pptp_in_call_rqst),		\
-+max(sizeof(struct pptp_in_call_rply),		\
-+max(sizeof(struct pptp_in_call_connect),	\
-+max(sizeof(struct pptp_call_clear_rqst),	\
-+max(sizeof(struct pptp_call_clear_ntfy),	\
-+max(sizeof(struct pptp_wan_err_ntfy),		\
-+max(sizeof(struct pptp_set_link_info), 0)))))))))))))
-+
-+
-+/* gre header structure: -------------------------------------------- */
-+
-+#define PPTP_GRE_PROTO  0x880B
-+#define PPTP_GRE_VER    0x1
-+
-+#define PPTP_GRE_FLAG_C	0x80
-+#define PPTP_GRE_FLAG_R	0x40
-+#define PPTP_GRE_FLAG_K	0x20
-+#define PPTP_GRE_FLAG_S	0x10
-+#define PPTP_GRE_FLAG_A	0x80
-+
-+#define PPTP_GRE_IS_C(f) ((f)&PPTP_GRE_FLAG_C)
-+#define PPTP_GRE_IS_R(f) ((f)&PPTP_GRE_FLAG_R)
-+#define PPTP_GRE_IS_K(f) ((f)&PPTP_GRE_FLAG_K)
-+#define PPTP_GRE_IS_S(f) ((f)&PPTP_GRE_FLAG_S)
-+#define PPTP_GRE_IS_A(f) ((f)&PPTP_GRE_FLAG_A)
-+
-+struct pptp_gre_header {
-+  u_int8_t flags;		/* bitfield */
-+  u_int8_t ver;			/* should be PPTP_GRE_VER (enhanced GRE) */
-+  u_int16_t protocol;		/* should be PPTP_GRE_PROTO (ppp-encaps) */
-+  u_int16_t payload_len;	/* size of ppp payload, not inc. gre header */
-+  u_int16_t call_id;		/* peer's call_id for this session */
-+  u_int32_t seq;		/* sequence number.  Present if S==1 */
-+  u_int32_t ack;		/* seq number of highest packet recieved by */
-+  				/*  sender in this session */
-+};
-+
-+#endif /* INC_PPTP_H */
---- /dev/null
-+++ b/pppd/plugins/pptp/pptp_options.h
-@@ -0,0 +1,41 @@
-+/* pptp_options.h ...... various constants used in the PPTP protocol.
-+ *                       #define STANDARD to emulate NT 4.0 exactly.
-+ *                       C. Scott Ananian <cananian@alumni.princeton.edu>
-+ *
-+ * $Id: pptp_options.h,v 1.3 2004/11/09 01:42:32 quozl Exp $
-+ */
-+
-+#ifndef INC_PPTP_OPTIONS_H
-+#define INC_PPTP_OPTIONS_H
-+
-+#undef  PPTP_FIRMWARE_STRING
-+#undef  PPTP_FIRMWARE_VERSION
-+#define PPTP_BUF_MAX 65536
-+#define PPTP_TIMEOUT 60 /* seconds */
-+extern int idle_wait;
-+extern int max_echo_wait;
-+#define PPTP_CONNECT_SPEED 1000000000
-+#define PPTP_WINDOW 3
-+#define PPTP_DELAY  0
-+#define PPTP_BPS_MIN 2400
-+#define PPTP_BPS_MAX 1000000000
-+
-+#ifndef STANDARD
-+#define PPTP_MAX_CHANNELS 65535
-+#define PPTP_FIRMWARE_STRING "0.01"
-+#define PPTP_FIRMWARE_VERSION 0x001
-+#define PPTP_HOSTNAME {'l','o','c','a','l',0}
-+#define PPTP_VENDOR   {'c','a','n','a','n','i','a','n',0}
-+#define PPTP_FRAME_CAP  PPTP_FRAME_ANY
-+#define PPTP_BEARER_CAP PPTP_BEARER_ANY
-+#else
-+#define PPTP_MAX_CHANNELS 5
-+#define PPTP_FIRMWARE_STRING "0.01"
-+#define PPTP_FIRMWARE_VERSION 0
-+#define PPTP_HOSTNAME {'l','o','c','a','l',0}
-+#define PPTP_VENDOR   {'N','T',0}
-+#define PPTP_FRAME_CAP  2
-+#define PPTP_BEARER_CAP 1
-+#endif
-+
-+#endif /* INC_PPTP_OPTIONS_H */
---- /dev/null
-+++ b/pppd/plugins/pptp/pptp_quirks.c
-@@ -0,0 +1,54 @@
-+/* pptp_quirks.c ...... various options to fix quirks found in buggy adsl modems
-+ *                      mulix <mulix@actcom.co.il>
-+ *
-+ * $Id: pptp_quirks.c,v 1.2 2001/11/23 03:42:51 quozl Exp $
-+ */
-+
-+#include <string.h>
-+#include "orckit_quirks.h"
-+#include "pptp_quirks.h"
-+
-+static int quirk_index = -1;
-+
-+struct pptp_fixup pptp_fixups[] = {
-+    {BEZEQ_ISRAEL, ORCKIT, ORCKIT_ATUR3,
-+     orckit_atur3_build_hook,
-+     orckit_atur3_start_ctrl_conn_hook,
-+     orckit_atur3_set_link_hook}
-+};
-+
-+static int fixups_sz = sizeof(pptp_fixups)/sizeof(pptp_fixups[0]);
-+
-+/* return 0 on success, non 0 otherwise */
-+int set_quirk_index(int index)
-+{
-+    if (index >= 0 && index < fixups_sz) {
-+	quirk_index = index;
-+	return 0;
-+    }
-+
-+    return -1;
-+}
-+
-+int get_quirk_index()
-+{
-+    return quirk_index;
-+}
-+
-+/* return the index for this isp in the quirks table, -1 if not found */
-+int find_quirk(const char* isp_name)
-+{
-+    int i = 0;
-+    if (isp_name) {
-+	while (i < fixups_sz && pptp_fixups[i].isp) {
-+	    if (!strcmp(pptp_fixups[i].isp, isp_name)) {
-+		return i;
-+	    }
-+	    ++i;
-+	}
-+    }
-+
-+    return -1;
-+}
-+
-+
---- /dev/null
-+++ b/pppd/plugins/pptp/pptp_quirks.h
-@@ -0,0 +1,59 @@
-+/* pptp_quirks.h ...... various options to fix quirks found in buggy adsl modems
-+ *                      mulix <mulix@actcom.co.il>
-+ *
-+ * $Id: pptp_quirks.h,v 1.1 2001/11/20 06:30:10 quozl Exp $
-+ */
-+
-+#ifndef INC_PPTP_QUIRKS_H
-+#define INC_PPTP_QUIRKS_H
-+
-+/* isp defs - correspond to slots in the fixups table */
-+#define BEZEQ_ISRAEL "BEZEQ_ISRAEL"
-+
-+/* vendor defs */
-+
-+#define ORCKIT 1
-+#define ALCATEL 2
-+
-+/* device defs */
-+
-+#define ORCKIT_ATUR2 1
-+#define ORCKIT_ATUR3 2
-+
-+#include "pptp_msg.h"
-+#include "pptp_ctrl.h"
-+
-+struct pptp_fixup {
-+    const char* isp;    /* which isp? e.g. Bezeq in Israel */
-+    int vendor; /* which vendor? e.g. Orckit */
-+    int device; /* which device? e.g. Orckit Atur3 */
-+
-+    /* use this hook to build your own out call request packet */
-+    int (*out_call_rqst_hook)(struct pptp_out_call_rqst* packet);
-+
-+    /* use this hook to build your own start control connection packet */
-+    /* note that this hook is called from two different places, depending
-+       on whether this is a request or reply */
-+    int (*start_ctrl_conn)(struct pptp_start_ctrl_conn* packet);
-+
-+    /* use this hook if you need to send a 'set_link' packet once
-+       the connection is established */
-+    int (*set_link_hook)(struct pptp_set_link_info* packet,
-+			 int peer_call_id);
-+};
-+
-+extern struct pptp_fixup pptp_fixups[];
-+
-+/* find the index for this isp in the quirks table */
-+/* return the index on success, -1 if not found */
-+int find_quirk(const char* isp_name);
-+
-+/* set the global quirk index. return 0 on success, non 0 otherwise */
-+int set_quirk_index(int index);
-+
-+/* get the global quirk index. return the index on success,
-+   -1 if no quirk is defined */
-+int get_quirk_index();
-+
-+
-+#endif /* INC_PPTP_QUIRKS_H */
---- /dev/null
-+++ b/pppd/plugins/pptp/util.c
-@@ -0,0 +1,109 @@
-+/* util.c ....... error message utilities.
-+ *                C. Scott Ananian <cananian@alumni.princeton.edu>
-+ *
-+ * $Id: util.c,v 1.11 2005/08/22 00:49:48 quozl Exp $
-+ */
-+
-+#include <stdio.h>
-+#include <stdarg.h>
-+#include <syslog.h>
-+#include <unistd.h>
-+#include <stdlib.h>
-+#include "util.h"
-+
-+#define MAKE_STRING(label) 				\
-+va_list ap;						\
-+char buf[256], string[256];				\
-+va_start(ap, format);					\
-+vsnprintf(buf, sizeof(buf), format, ap);		\
-+snprintf(string, sizeof(string), "%s %s[%s:%s:%d]: %s",	\
-+	 log_string, label, func, file, line, buf);	\
-+va_end(ap)
-+
-+/*** connect a file to a file descriptor **************************************/
-+int file2fd(const char *path, const char *mode, int fd)
-+{
-+    int ok = 0;
-+    FILE *file = NULL;
-+    file = fopen(path, mode);
-+    if (file != NULL && dup2(fileno(file), fd) != -1)
-+        ok = 1;
-+    if (file) fclose(file);
-+    return ok;
-+}
-+
-+/* signal to pipe delivery implementation */
-+#include <unistd.h>
-+#include <fcntl.h>
-+#include <signal.h>
-+#include <string.h>
-+
-+/* pipe private to process */
-+static int sigpipe[2];
-+
-+/* create a signal pipe, returns 0 for success, -1 with errno for failure */
-+int sigpipe_create()
-+{
-+  int rc;
-+  
-+  rc = pipe(sigpipe);
-+  if (rc < 0) return rc;
-+  
-+  fcntl(sigpipe[0], F_SETFD, FD_CLOEXEC);
-+  fcntl(sigpipe[1], F_SETFD, FD_CLOEXEC);
-+  
-+#ifdef O_NONBLOCK
-+#define FLAG_TO_SET O_NONBLOCK
-+#else
-+#ifdef SYSV
-+#define FLAG_TO_SET O_NDELAY
-+#else /* BSD */
-+#define FLAG_TO_SET FNDELAY
-+#endif
-+#endif
-+  
-+  rc = fcntl(sigpipe[1], F_GETFL);
-+  if (rc != -1)
-+    rc = fcntl(sigpipe[1], F_SETFL, rc | FLAG_TO_SET);
-+  if (rc < 0) return rc;
-+  return 0;
-+#undef FLAG_TO_SET
-+}
-+
-+/* generic handler for signals, writes signal number to pipe */
-+void sigpipe_handler(int signum)
-+{
-+  write(sigpipe[1], &signum, sizeof(signum));
-+  signal(signum, sigpipe_handler);
-+}
-+
-+/* assign a signal number to the pipe */
-+void sigpipe_assign(int signum)
-+{
-+  struct sigaction sa;
-+
-+  memset(&sa, 0, sizeof(sa));
-+  sa.sa_handler = sigpipe_handler;
-+  sigaction(signum, &sa, NULL);
-+}
-+
-+/* return the signal pipe read file descriptor for select(2) */
-+int sigpipe_fd()
-+{
-+  return sigpipe[0];
-+}
-+
-+/* read and return the pending signal from the pipe */
-+int sigpipe_read()
-+{
-+  int signum;
-+  read(sigpipe[0], &signum, sizeof(signum));
-+  return signum;
-+}
-+
-+void sigpipe_close()
-+{
-+  close(sigpipe[0]);
-+  close(sigpipe[1]);
-+}
-+
---- /dev/null
-+++ b/pppd/plugins/pptp/util.h
-@@ -0,0 +1,31 @@
-+/* util.h ....... error message utilities.
-+ *                C. Scott Ananian <cananian@alumni.princeton.edu>
-+ *
-+ * $Id: util.h,v 1.6 2005/03/10 01:18:20 quozl Exp $
-+ */
-+
-+#ifndef INC_UTIL_H
-+#define INC_UTIL_H
-+
-+int file2fd(const char *path, const char *mode, int fd);
-+
-+/* signal to pipe delivery implementation */
-+
-+/* create a signal pipe, returns 0 for success, -1 with errno for failure */
-+int sigpipe_create();
-+
-+/* generic handler for signals, writes signal number to pipe */
-+void sigpipe_handler(int signum);
-+
-+/* assign a signal number to the pipe */
-+void sigpipe_assign(int signum);
-+
-+/* return the signal pipe read file descriptor for select(2) */
-+int sigpipe_fd();
-+
-+/* read and return the pending signal from the pipe */
-+int sigpipe_read();
-+
-+void sigpipe_close();
-+
-+#endif /* INC_UTIL_H */
---- /dev/null
-+++ b/pppd/plugins/pptp/vector.c
-@@ -0,0 +1,209 @@
-+/* vector.c ..... store a vector of PPTP_CALL information and search it
-+ *                efficiently.
-+ *                C. Scott Ananian <cananian@alumni.princeton.edu>
-+ *
-+ * $Id: vector.c,v 1.3 2003/06/17 10:12:55 reink Exp $
-+ */
-+
-+#include <stdlib.h>
-+#include <string.h>
-+#include <assert.h>
-+#include "pptp_ctrl.h"
-+#include "vector.h"
-+/* #define VECTOR_DEBUG */
-+#ifndef TRUE
-+#define TRUE 1
-+#endif
-+#ifndef FALSE
-+#define FALSE 0
-+#endif
-+
-+struct vector_item {
-+    int key;
-+    PPTP_CALL *call;
-+};
-+
-+struct vector_struct {
-+    struct vector_item *item;
-+    int size;
-+    int alloc;
-+#ifdef VECTOR_DEBUG
-+    int key_max;
-+#endif
-+};
-+
-+static struct vector_item *binary_search(VECTOR *v, int key);
-+
-+/*** vector_create ************************************************************/
-+VECTOR *vector_create()
-+{
-+    const int INITIAL_SIZE = 4;
-+
-+    VECTOR *v = malloc(sizeof(*v));
-+    if (v == NULL) return v;
-+
-+    v->size = 0;
-+    v->alloc = INITIAL_SIZE;
-+    v->item = malloc(sizeof(*(v->item)) * (v->alloc));
-+#ifdef VECTOR_DEBUG
-+    v->key_max = -1;
-+#endif
-+    if (v->item == NULL) { free(v); return NULL; }
-+    else return v;
-+}
-+
-+/*** vector_destroy ***********************************************************/
-+void vector_destroy(VECTOR *v)
-+{
-+    free(v->item);
-+#ifdef VECTOR_DEBUG
-+    v->item = NULL;
-+#endif
-+    free(v);
-+}
-+
-+/*** vector_size **************************************************************/
-+int vector_size(VECTOR *v)
-+{
-+    assert(v != NULL);
-+    return v->size;
-+}
-+
-+/*** vector_insert*************************************************************
-+ * nice thing about file descriptors is that we are assured by POSIX 
-+ * that they are monotonically increasing.
-+ */
-+int vector_insert(VECTOR *v, int key, PPTP_CALL * call)
-+{
-+    int i;
-+    assert(v != NULL && call != NULL);
-+    assert(!vector_contains(v, key));
-+#ifdef VECTOR_DEBUG
-+    assert(v->key_max < key);
-+#endif
-+    if (!(v->size < v->alloc)) {
-+        void *tmp = realloc(v->item, sizeof(*(v->item)) * 2 * v->alloc);
-+        if (tmp != NULL) {
-+            v->alloc *= 2;
-+            v->item = tmp;
-+        } else return FALSE; /* failed to alloc memory. */
-+    }
-+    assert(v->size < v->alloc);
-+    /* for safety, we make this work in the general case;
-+     * but this is optimized for adding call to the end of the vector.
-+     */
-+    for(i = v->size - 1; i >= 0; i--)
-+        if (v->item[i].key < key)
-+            break;
-+    /* insert after item i */
-+    memmove(&v->item[i + 2], &v->item[i + 1],
-+            (v->size - i - 1) * sizeof(*(v->item)));
-+    v->item[i + 1].key  = key;
-+    v->item[i + 1].call = call;
-+    v->size++;
-+#ifdef VECTOR_DEBUG
-+    if (v->key_max < key) /* ie, always. */
-+        v->key_max = key;
-+#endif
-+    return TRUE;
-+}
-+
-+/*** vector_remove ************************************************************/
-+int  vector_remove(VECTOR *v, int key)
-+{
-+    struct vector_item *tmp;
-+    assert(v != NULL);
-+    if ((tmp =binary_search(v,key)) == NULL) return FALSE;
-+    assert(tmp >= v->item && tmp < v->item + v->size);
-+    memmove(tmp, tmp + 1, (v->size - (v->item - tmp) - 1) * sizeof(*(v->item)));
-+    v->size--;
-+    return TRUE;
-+}
-+
-+/*** vector_search ************************************************************/
-+int  vector_search(VECTOR *v, int key, PPTP_CALL **call)
-+{
-+    struct vector_item *tmp;
-+    assert(v != NULL);
-+    tmp = binary_search(v, key);
-+    if (tmp ==NULL) return FALSE;
-+    *call = tmp->call;
-+    return TRUE;
-+}
-+
-+/*** vector_contains **********************************************************/
-+int  vector_contains(VECTOR *v, int key)
-+{
-+    assert(v != NULL);
-+    return (binary_search(v, key) != NULL);
-+}
-+
-+/*** vector_item **************************************************************/
-+static struct vector_item *binary_search(VECTOR *v, int key)
-+{
-+    int l,r,x;
-+    l = 0;
-+    r = v->size - 1;
-+    while (r >= l) {
-+        x = (l + r)/2;
-+        if (key <  v->item[x].key) r = x - 1; else l = x + 1;
-+        if (key == v->item[x].key) return &(v->item[x]);
-+    }
-+    return NULL;
-+}
-+
-+/*** vector_scan ***************************************************************
-+ * Hmm.  Let's be fancy and use a binary search for the first
-+ * unused key, taking advantage of the list is stored sorted; ie
-+ * we can look at pointers and keys at two different locations, 
-+ * and if (ptr1 - ptr2) = (key1 - key2) then all the slots
-+ * between ptr1 and ptr2 are filled.  Note that ptr1-ptr2 should
-+ * never be greater than key1-key2 (no duplicate keys!)... we
-+ * check for this.
-+ */
-+int vector_scan(VECTOR *v, int lo, int hi, int *key)
-+{
-+    int l,r,x;
-+    assert(v != NULL);
-+    assert(key != NULL);
-+    if ((v->size<1) || (lo < v->item[0].key)) { *key = lo; return TRUE; }
-+    /* our array bounds */
-+    l = 0;  r = v->size - 1;
-+    while (r > l) {
-+        /* check for a free spot right after l */
-+        if (v->item[l].key + 1 < v->item[l + 1].key) { /* found it! */
-+            *key = v->item[l].key + 1;
-+            return TRUE;
-+        }
-+        /* no dice. Let's see if the free spot is before or after the midpoint */
-+        x = (l + r)/2;
-+        /* Okay, we have right (r), left (l) and the probe (x). */
-+        assert(x - l <= v->item[x].key - v->item[l].key);
-+        assert(r - x <= v->item[r].key - v->item[x].key);
-+        if (x - l < v->item[x].key - v->item[l].key)
-+            /* room between l and x */
-+            r = x;
-+        else /* no room between l and x */
-+            if (r - x < v->item[r].key - v->item[x].key)
-+                /* room between x and r */
-+                l = x;
-+            else /* no room between x and r, either */
-+                break; /* game over, man. */
-+    }
-+    /* no room found in already allocated space.  Check to see if
-+     * there's free space above allocated entries. */
-+    if (v->item[v->size - 1].key < hi) {
-+        *key = v->item[v->size - 1].key + 1;
-+        return TRUE;
-+    }
-+    /* outta luck */
-+    return FALSE;
-+}
-+
-+/*** vector_get_Nth ***********************************************************/
-+PPTP_CALL * vector_get_Nth(VECTOR *v, int n)
-+{
-+    assert(v != NULL);
-+    assert(0 <= n && n < vector_size(v));
-+    return v->item[n].call;
-+}
---- /dev/null
-+++ b/pppd/plugins/pptp/vector.h
-@@ -0,0 +1,31 @@
-+/* vector.h ..... store a vector of PPTP_CALL information and search it
-+ *                efficiently.
-+ *                C. Scott Ananian <cananian@alumni.princeton.edu>
-+ *
-+ * $Id: vector.h,v 1.1.1.1 2000/12/23 08:19:51 scott Exp $
-+ */
-+
-+#ifndef INC_VECTOR_H
-+#define INC_VECTOR_H
-+
-+#include "pptp_ctrl.h" /* for definition of PPTP_CALL */
-+
-+typedef struct vector_struct VECTOR;
-+
-+VECTOR *vector_create();
-+void vector_destroy(VECTOR *v);
-+
-+int vector_size(VECTOR *v);
-+
-+/* vector_insert and vector_search return TRUE on success, FALSE on failure. */
-+int  vector_insert(VECTOR *v, int key, PPTP_CALL * call);
-+int  vector_remove(VECTOR *v, int key);
-+int  vector_search(VECTOR *v, int key, PPTP_CALL ** call);
-+/* vector_contains returns FALSE if not found, TRUE if found. */
-+int  vector_contains(VECTOR *v, int key);
-+/* find first unused key. Returns TRUE on success, FALSE if no. */
-+int  vector_scan(VECTOR *v, int lo, int hi, int *key);
-+/* get a specific PPTP_CALL ... useful only when iterating. */
-+PPTP_CALL * vector_get_Nth(VECTOR *v, int n);
-+
-+#endif /* INC_VECTOR_H */