--- old/usr/src/cmd/ssh/sshd/servconf.c	Tue Aug 16 19:27:17 2016
+++ /dev/null	Tue Aug 16 19:26:53 2016
@@ -1,1497 +0,0 @@
-/*
- * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
- *                    All rights reserved
- *
- * As far as I am concerned, the code I have written for this software
- * can be used freely for any purpose.  Any derived versions of this
- * software must be clearly marked as such, and if the derived work is
- * incompatible with the protocol description in the RFC file, it must be
- * called by a name other than "ssh" or "Secure Shell".
- */
-/*
- * Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved.
- * Copyright 2013 Joyent, Inc.  All rights reserved.
- */
-
-#include "includes.h"
-RCSID("$OpenBSD: servconf.c,v 1.115 2002/09/04 18:52:42 stevesk Exp $");
-
-#ifdef HAVE_DEFOPEN
-#include <deflt.h>
-#endif /* HAVE_DEFOPEN */
-
-#if defined(KRB4)
-#include <krb.h>
-#endif
-#if defined(KRB5)
-#ifdef HEIMDAL
-#include <krb.h>
-#else
-/* Bodge - but then, so is using the kerberos IV KEYFILE to get a Kerberos V
- * keytab */
-#define KEYFILE "/etc/krb5.keytab"
-#endif
-#endif
-#ifdef AFS
-#include <kafs.h>
-#endif
-
-#include "ssh.h"
-#include "log.h"
-#include "buffer.h"
-#include "servconf.h"
-#include "xmalloc.h"
-#include "compat.h"
-#include "pathnames.h"
-#include "tildexpand.h"
-#include "misc.h"
-#include "cipher.h"
-#include "kex.h"
-#include "mac.h"
-#include "auth.h"
-#include "match.h"
-#include "groupaccess.h"
-
-static void add_listen_addr(ServerOptions *, char *, u_short);
-static void add_one_listen_addr(ServerOptions *, char *, u_short);
-
-extern Buffer cfg;
-
-/* AF_UNSPEC or AF_INET or AF_INET6 */
-extern int IPv4or6;
-
-/*
- * Initializes the server options to their initial (unset) values. Some of those
- * that stay unset after the command line options and configuration files are
- * read are set to their default values in fill_default_server_options().
- */
-void
-initialize_server_options(ServerOptions *options)
-{
-	(void) memset(options, 0, sizeof(*options));
-
-	/* Standard Options */
-	options->num_ports = 0;
-	options->ports_from_cmdline = 0;
-	options->listen_addrs = NULL;
-	options->num_host_key_files = 0;
-	options->pid_file = NULL;
-	options->server_key_bits = -1;
-	options->login_grace_time = -1;
-	options->key_regeneration_time = -1;
-	options->permit_root_login = PERMIT_NOT_SET;
-	options->ignore_rhosts = -1;
-	options->ignore_user_known_hosts = -1;
-	options->print_motd = -1;
-	options->print_lastlog = -1;
-	options->x11_forwarding = -1;
-	options->x11_display_offset = -1;
-	options->x11_use_localhost = -1;
-	options->xauth_location = NULL;
-	options->strict_modes = -1;
-	options->keepalives = -1;
-	options->log_facility = SYSLOG_FACILITY_NOT_SET;
-	options->log_level = SYSLOG_LEVEL_NOT_SET;
-	options->rhosts_authentication = -1;
-	options->rhosts_rsa_authentication = -1;
-	options->hostbased_authentication = -1;
-	options->hostbased_uses_name_from_packet_only = -1;
-	options->rsa_authentication = -1;
-	options->pubkey_authentication = -1;
-#ifdef GSSAPI
-	options->gss_authentication = -1;
-	options->gss_keyex = -1;
-	options->gss_store_creds = -1;
-	options->gss_use_session_ccache = -1;
-	options->gss_cleanup_creds = -1;
-#endif
-#if defined(KRB4) || defined(KRB5)
-	options->kerberos_authentication = -1;
-	options->kerberos_or_local_passwd = -1;
-	options->kerberos_ticket_cleanup = -1;
-#endif
-#if defined(AFS) || defined(KRB5)
-	options->kerberos_tgt_passing = -1;
-#endif
-#ifdef AFS
-	options->afs_token_passing = -1;
-#endif
-	options->password_authentication = -1;
-	options->kbd_interactive_authentication = -1;
-	options->challenge_response_authentication = -1;
-	options->pam_authentication_via_kbd_int = -1;
-	options->permit_empty_passwd = -1;
-	options->permit_user_env = -1;
-	options->compression = -1;
-	options->allow_tcp_forwarding = -1;
-	options->num_allow_users = 0;
-	options->num_deny_users = 0;
-	options->num_allow_groups = 0;
-	options->num_deny_groups = 0;
-	options->ciphers = NULL;
-	options->macs = NULL;
-	options->protocol = SSH_PROTO_UNKNOWN;
-	options->gateway_ports = -1;
-	options->num_subsystems = 0;
-	options->max_startups_begin = -1;
-	options->max_startups_rate = -1;
-	options->max_startups = -1;
-	options->banner = NULL;
-	options->verify_reverse_mapping = -1;
-	options->client_alive_interval = -1;
-	options->client_alive_count_max = -1;
-	options->authorized_keys_file = NULL;
-	options->authorized_keys_file2 = NULL;
-
-	options->max_auth_tries = -1;
-	options->max_auth_tries_log = -1;
-
-	options->max_init_auth_tries = -1;
-	options->max_init_auth_tries_log = -1;
-
-	options->lookup_client_hostnames = -1;
-	options->use_openssl_engine = -1;
-	options->chroot_directory = NULL;
-	options->pre_userauth_hook = NULL;
-	options->pam_service_name = NULL;
-	options->pam_service_prefix = NULL;
-}
-
-#ifdef HAVE_DEFOPEN
-/*
- * Reads /etc/default/login and defaults several ServerOptions:
- *
- * PermitRootLogin
- * PermitEmptyPasswords
- * LoginGraceTime
- *
- * CONSOLE=*      -> PermitRootLogin=without-password
- * #CONSOLE=*     -> PermitRootLogin=yes
- *
- * PASSREQ=YES    -> PermitEmptyPasswords=no
- * PASSREQ=NO     -> PermitEmptyPasswords=yes
- * #PASSREQ=*     -> PermitEmptyPasswords=no
- *
- * TIMEOUT=<secs> -> LoginGraceTime=<secs>
- * #TIMEOUT=<secs> -> LoginGraceTime=300
- */
-static
-void
-deflt_fill_default_server_options(ServerOptions *options)
-{
-	int	flags;
-	char	*ptr;
-
-	if (defopen(_PATH_DEFAULT_LOGIN))
-		return;
-
-	/* Ignore case */
-	flags = defcntl(DC_GETFLAGS, 0);
-	TURNOFF(flags, DC_CASE);
-	(void) defcntl(DC_SETFLAGS, flags);
-
-	if (options->permit_root_login == PERMIT_NOT_SET &&
-	    (ptr = defread("CONSOLE=")) != NULL)
-		options->permit_root_login = PERMIT_NO_PASSWD;
-
-	if (options->permit_empty_passwd == -1 &&
-	    (ptr = defread("PASSREQ=")) != NULL) {
-		if (strcasecmp("YES", ptr) == 0)
-			options->permit_empty_passwd = 0;
-		else if (strcasecmp("NO", ptr) == 0)
-			options->permit_empty_passwd = 1;
-	}
-
-	if (options->max_init_auth_tries == -1 &&
-	    (ptr = defread("RETRIES=")) != NULL) {
-		options->max_init_auth_tries = atoi(ptr);
-	}
-
-	if (options->max_init_auth_tries_log == -1 &&
-	    (ptr = defread("SYSLOG_FAILED_LOGINS=")) != NULL) {
-		options->max_init_auth_tries_log = atoi(ptr);
-	}
-
-	if (options->login_grace_time == -1) {
-		if ((ptr = defread("TIMEOUT=")) != NULL)
-			options->login_grace_time = (unsigned)atoi(ptr);
-		else
-			options->login_grace_time = 300;
-	}
-
-	(void) defopen((char *)NULL);
-}
-#endif /* HAVE_DEFOPEN */
-
-void
-fill_default_server_options(ServerOptions *options)
-{
-
-#ifdef HAVE_DEFOPEN
-	deflt_fill_default_server_options(options);
-#endif /* HAVE_DEFOPEN */
-
-	/* Standard Options */
-	if (options->protocol == SSH_PROTO_UNKNOWN)
-		options->protocol = SSH_PROTO_1|SSH_PROTO_2;
-	if (options->num_host_key_files == 0) {
-		/* fill default hostkeys for protocols */
-		if (options->protocol & SSH_PROTO_1)
-			options->host_key_files[options->num_host_key_files++] =
-			    _PATH_HOST_KEY_FILE;
-#ifndef GSSAPI
-		/* With GSS keyex we can run v2 w/ no host keys */
-		if (options->protocol & SSH_PROTO_2) {
-			options->host_key_files[options->num_host_key_files++] =
-			    _PATH_HOST_RSA_KEY_FILE;
-			options->host_key_files[options->num_host_key_files++] =
-			    _PATH_HOST_DSA_KEY_FILE;
-		}
-#endif /* GSSAPI */
-	}
-	if (options->num_ports == 0)
-		options->ports[options->num_ports++] = SSH_DEFAULT_PORT;
-	if (options->listen_addrs == NULL)
-		add_listen_addr(options, NULL, 0);
-	if (options->pid_file == NULL)
-		options->pid_file = _PATH_SSH_DAEMON_PID_FILE;
-	if (options->server_key_bits == -1)
-		options->server_key_bits = 768;
-	if (options->login_grace_time == -1)
-		options->login_grace_time = 120;
-	if (options->key_regeneration_time == -1)
-		options->key_regeneration_time = 3600;
-	if (options->permit_root_login == PERMIT_NOT_SET)
-		options->permit_root_login = PERMIT_YES;
-	if (options->ignore_rhosts == -1)
-		options->ignore_rhosts = 1;
-	if (options->ignore_user_known_hosts == -1)
-		options->ignore_user_known_hosts = 0;
-	if (options->print_motd == -1)
-		options->print_motd = 1;
-	if (options->print_lastlog == -1)
-		options->print_lastlog = 1;
-	if (options->x11_forwarding == -1)
-		options->x11_forwarding = 1;
-	if (options->x11_display_offset == -1)
-		options->x11_display_offset = 10;
-	if (options->x11_use_localhost == -1)
-		options->x11_use_localhost = 1;
-	if (options->xauth_location == NULL)
-		options->xauth_location = _PATH_XAUTH;
-	if (options->strict_modes == -1)
-		options->strict_modes = 1;
-	if (options->keepalives == -1)
-		options->keepalives = 1;
-	if (options->log_facility == SYSLOG_FACILITY_NOT_SET)
-		options->log_facility = SYSLOG_FACILITY_AUTH;
-	if (options->log_level == SYSLOG_LEVEL_NOT_SET)
-		options->log_level = SYSLOG_LEVEL_INFO;
-	if (options->rhosts_authentication == -1)
-		options->rhosts_authentication = 0;
-	if (options->rhosts_rsa_authentication == -1)
-		options->rhosts_rsa_authentication = 0;
-	if (options->hostbased_authentication == -1)
-		options->hostbased_authentication = 0;
-	if (options->hostbased_uses_name_from_packet_only == -1)
-		options->hostbased_uses_name_from_packet_only = 0;
-	if (options->rsa_authentication == -1)
-		options->rsa_authentication = 1;
-	if (options->pubkey_authentication == -1)
-		options->pubkey_authentication = 1;
-#ifdef GSSAPI
-	if (options->gss_authentication == -1)
-		options->gss_authentication = 1;
-	if (options->gss_keyex == -1)
-		options->gss_keyex = 1;
-	if (options->gss_store_creds == -1)
-		options->gss_store_creds = 1;
-	if (options->gss_use_session_ccache == -1)
-		options->gss_use_session_ccache = 1;
-	if (options->gss_cleanup_creds == -1)
-		options->gss_cleanup_creds = 1;
-#endif
-#if defined(KRB4) || defined(KRB5)
-	if (options->kerberos_authentication == -1)
-		options->kerberos_authentication = 0;
-	if (options->kerberos_or_local_passwd == -1)
-		options->kerberos_or_local_passwd = 1;
-	if (options->kerberos_ticket_cleanup == -1)
-		options->kerberos_ticket_cleanup = 1;
-#endif
-#if defined(AFS) || defined(KRB5)
-	if (options->kerberos_tgt_passing == -1)
-		options->kerberos_tgt_passing = 0;
-#endif
-#ifdef AFS
-	if (options->afs_token_passing == -1)
-		options->afs_token_passing = 0;
-#endif
-	if (options->password_authentication == -1)
-		options->password_authentication = 1;
-	/*
-	 * options->pam_authentication_via_kbd_int has intentionally no default
-	 * value since we do not need it.
-	 */
-	if (options->kbd_interactive_authentication == -1)
-		options->kbd_interactive_authentication = 1;
-	if (options->challenge_response_authentication == -1)
-		options->challenge_response_authentication = 1;
-	if (options->permit_empty_passwd == -1)
-		options->permit_empty_passwd = 0;
-	if (options->permit_user_env == -1)
-		options->permit_user_env = 0;
-	if (options->compression == -1)
-		options->compression = 1;
-	if (options->allow_tcp_forwarding == -1)
-		options->allow_tcp_forwarding = 1;
-	if (options->gateway_ports == -1)
-		options->gateway_ports = 0;
-	if (options->max_startups == -1)
-		options->max_startups = 10;
-	if (options->max_startups_rate == -1)
-		options->max_startups_rate = 100;		/* 100% */
-	if (options->max_startups_begin == -1)
-		options->max_startups_begin = options->max_startups;
-	if (options->verify_reverse_mapping == -1)
-		options->verify_reverse_mapping = 0;
-	if (options->client_alive_interval == -1)
-		options->client_alive_interval = 0;
-	if (options->client_alive_count_max == -1)
-		options->client_alive_count_max = 3;
-	if (options->authorized_keys_file2 == NULL) {
-		/* authorized_keys_file2 falls back to authorized_keys_file */
-		if (options->authorized_keys_file != NULL)
-			options->authorized_keys_file2 = options->authorized_keys_file;
-		else
-			options->authorized_keys_file2 = _PATH_SSH_USER_PERMITTED_KEYS2;
-	}
-	if (options->authorized_keys_file == NULL)
-		options->authorized_keys_file = _PATH_SSH_USER_PERMITTED_KEYS;
-
-	if (options->max_auth_tries == -1)
-		options->max_auth_tries = AUTH_FAIL_MAX;
-	if (options->max_auth_tries_log == -1)
-		options->max_auth_tries_log = options->max_auth_tries / 2;
-
-	if (options->max_init_auth_tries == -1)
-		options->max_init_auth_tries = AUTH_FAIL_MAX;
-	if (options->max_init_auth_tries_log == -1)
-		options->max_init_auth_tries_log = options->max_init_auth_tries / 2;
-
-	if (options->lookup_client_hostnames == -1)
-		options->lookup_client_hostnames = 1;
-	if (options->use_openssl_engine == -1)
-		options->use_openssl_engine = 1;
-	if (options->pam_service_prefix == NULL)
-		options->pam_service_prefix = _SSH_PAM_SERVICE_PREFIX;
-	if (options->pam_service_name == NULL)
-		options->pam_service_name = NULL;
-}
-
-/* Keyword tokens. */
-typedef enum {
-	sBadOption,		/* == unknown option */
-	/* Portable-specific options */
-	sPAMAuthenticationViaKbdInt,
-	/* Standard Options */
-	sPort, sHostKeyFile, sServerKeyBits, sLoginGraceTime, sKeyRegenerationTime,
-	sPermitRootLogin, sLogFacility, sLogLevel,
-	sRhostsAuthentication, sRhostsRSAAuthentication, sRSAAuthentication,
-#ifdef GSSAPI
-	sGssAuthentication, sGssKeyEx, sGssStoreDelegCreds,
-	sGssUseSessionCredCache, sGssCleanupCreds,
-#endif /* GSSAPI */
-#if defined(KRB4) || defined(KRB5)
-	sKerberosAuthentication, sKerberosOrLocalPasswd, sKerberosTicketCleanup,
-#endif
-#if defined(AFS) || defined(KRB5)
-	sKerberosTgtPassing,
-#endif
-#ifdef AFS
-	sAFSTokenPassing,
-#endif
-	sChallengeResponseAuthentication,
-	sPasswordAuthentication, sKbdInteractiveAuthentication, sListenAddress,
-	sPrintMotd, sPrintLastLog, sIgnoreRhosts,
-	sX11Forwarding, sX11DisplayOffset, sX11UseLocalhost,
-	sStrictModes, sEmptyPasswd, sKeepAlives,
-	sPermitUserEnvironment, sUseLogin, sAllowTcpForwarding, sCompression,
-	sAllowUsers, sDenyUsers, sAllowGroups, sDenyGroups,
-	sIgnoreUserKnownHosts, sCiphers, sMacs, sProtocol, sPidFile,
-	sGatewayPorts, sPubkeyAuthentication, sXAuthLocation, sSubsystem, sMaxStartups,
-	sBanner, sVerifyReverseMapping, sHostbasedAuthentication,
-	sHostbasedUsesNameFromPacketOnly, sClientAliveInterval,
-	sClientAliveCountMax, sAuthorizedKeysFile, sAuthorizedKeysFile2,
-	sMaxAuthTries, sMaxAuthTriesLog, sUsePrivilegeSeparation,
-	sLookupClientHostnames, sUseOpenSSLEngine, sChrootDirectory,
-	sPreUserauthHook, sMatch, sPAMServicePrefix, sPAMServiceName,
-	sDeprecated
-} ServerOpCodes;
-
-#define SSHCFG_GLOBAL	0x01	/* allowed in main section of sshd_config */
-#define SSHCFG_MATCH	0x02	/* allowed inside a Match section */
-#define SSHCFG_ALL	(SSHCFG_GLOBAL|SSHCFG_MATCH)
-
-/* Textual representation of the tokens. */
-static struct {
-	const char *name;
-	ServerOpCodes opcode;
-	u_int flags;
-} keywords[] = {
-	/* Portable-specific options */
-	{ "PAMAuthenticationViaKbdInt", sPAMAuthenticationViaKbdInt, SSHCFG_GLOBAL },
-	/* Standard Options */
-	{ "port", sPort, SSHCFG_GLOBAL },
-	{ "hostkey", sHostKeyFile, SSHCFG_GLOBAL },
-	{ "hostdsakey", sHostKeyFile, SSHCFG_GLOBAL },			/* alias */
-	{ "pidfile", sPidFile, SSHCFG_GLOBAL },
-	{ "serverkeybits", sServerKeyBits, SSHCFG_GLOBAL },
-	{ "logingracetime", sLoginGraceTime, SSHCFG_GLOBAL },
-	{ "keyregenerationinterval", sKeyRegenerationTime, SSHCFG_GLOBAL },
-	{ "permitrootlogin", sPermitRootLogin, SSHCFG_ALL },
-	{ "syslogfacility", sLogFacility, SSHCFG_GLOBAL },
-	{ "loglevel", sLogLevel, SSHCFG_GLOBAL },
-	{ "rhostsauthentication", sRhostsAuthentication, SSHCFG_GLOBAL },
-	{ "rhostsrsaauthentication", sRhostsRSAAuthentication, SSHCFG_ALL },
-	{ "hostbasedauthentication", sHostbasedAuthentication, SSHCFG_ALL },
-	{ "hostbasedusesnamefrompacketonly", sHostbasedUsesNameFromPacketOnly },
-	{ "rsaauthentication", sRSAAuthentication, SSHCFG_ALL },
-	{ "pubkeyauthentication", sPubkeyAuthentication, SSHCFG_ALL },
-	{ "dsaauthentication", sPubkeyAuthentication, SSHCFG_GLOBAL },	/* alias */
-#ifdef GSSAPI
-	{ "gssapiauthentication", sGssAuthentication, SSHCFG_ALL },
-	{ "gssapikeyexchange", sGssKeyEx,   SSHCFG_GLOBAL },
-	{ "gssapistoredelegatedcredentials", sGssStoreDelegCreds, SSHCFG_GLOBAL },
-	{ "gssauthentication", sGssAuthentication, SSHCFG_GLOBAL },	/* alias */
-	{ "gsskeyex", sGssKeyEx, SSHCFG_GLOBAL },	/* alias */
-	{ "gssstoredelegcreds", sGssStoreDelegCreds, SSHCFG_GLOBAL },	/* alias */
-#ifndef SUNW_GSSAPI
-	{ "gssusesessionccache", sGssUseSessionCredCache, SSHCFG_GLOBAL },
-	{ "gssusesessioncredcache", sGssUseSessionCredCache, SSHCFG_GLOBAL },
-	{ "gsscleanupcreds", sGssCleanupCreds, SSHCFG_GLOBAL },
-#endif /* SUNW_GSSAPI */
-#endif
-#if defined(KRB4) || defined(KRB5)
-	{ "kerberosauthentication", sKerberosAuthentication, SSHCFG_ALL },
-	{ "kerberosorlocalpasswd", sKerberosOrLocalPasswd, SSHCFG_GLOBAL },
-	{ "kerberosticketcleanup", sKerberosTicketCleanup, SSHCFG_GLOBAL },
-#endif
-#if defined(AFS) || defined(KRB5)
-	{ "kerberostgtpassing", sKerberosTgtPassing, SSHCFG_GLOBAL },
-#endif
-#ifdef AFS
-	{ "afstokenpassing", sAFSTokenPassing, SSHCFG_GLOBAL },
-#endif
-	{ "passwordauthentication", sPasswordAuthentication, SSHCFG_ALL },
-	{ "kbdinteractiveauthentication", sKbdInteractiveAuthentication, SSHCFG_ALL },
-	{ "challengeresponseauthentication", sChallengeResponseAuthentication, SSHCFG_GLOBAL },
-	{ "skeyauthentication", sChallengeResponseAuthentication, SSHCFG_GLOBAL }, /* alias */
-	{ "checkmail", sDeprecated, SSHCFG_GLOBAL },
-	{ "listenaddress", sListenAddress, SSHCFG_GLOBAL },
-	{ "printmotd", sPrintMotd, SSHCFG_GLOBAL },
-	{ "printlastlog", sPrintLastLog, SSHCFG_GLOBAL },
-	{ "ignorerhosts", sIgnoreRhosts, SSHCFG_GLOBAL },
-	{ "ignoreuserknownhosts", sIgnoreUserKnownHosts, SSHCFG_GLOBAL },
-	{ "x11forwarding", sX11Forwarding, SSHCFG_ALL },
-	{ "x11displayoffset", sX11DisplayOffset, SSHCFG_ALL },
-	{ "x11uselocalhost", sX11UseLocalhost, SSHCFG_ALL },
-	{ "xauthlocation", sXAuthLocation, SSHCFG_GLOBAL },
-	{ "strictmodes", sStrictModes, SSHCFG_GLOBAL },
-	{ "permitemptypasswords", sEmptyPasswd, SSHCFG_ALL },
-	{ "permituserenvironment", sPermitUserEnvironment, SSHCFG_GLOBAL },
-	{ "uselogin", sUseLogin, SSHCFG_GLOBAL },
-	{ "compression", sCompression, SSHCFG_GLOBAL },
-	{ "tcpkeepalive", sKeepAlives, SSHCFG_GLOBAL },
-	{ "keepalive", sKeepAlives, SSHCFG_GLOBAL },		/* obsolete */
-	{ "allowtcpforwarding", sAllowTcpForwarding, SSHCFG_ALL },
-	{ "allowusers", sAllowUsers, SSHCFG_GLOBAL },
-	{ "denyusers", sDenyUsers, SSHCFG_GLOBAL },
-	{ "allowgroups", sAllowGroups, SSHCFG_GLOBAL },
-	{ "denygroups", sDenyGroups, SSHCFG_GLOBAL },
-	{ "ciphers", sCiphers, SSHCFG_GLOBAL },
-	{ "macs", sMacs, SSHCFG_GLOBAL},
-	{ "protocol", sProtocol,SSHCFG_GLOBAL },
-	{ "gatewayports", sGatewayPorts, SSHCFG_ALL },
-	{ "subsystem", sSubsystem, SSHCFG_GLOBAL},
-	{ "maxstartups", sMaxStartups, SSHCFG_GLOBAL },
-	{ "banner", sBanner, SSHCFG_ALL },
-	{ "verifyreversemapping", sVerifyReverseMapping, SSHCFG_GLOBAL },
-	{ "reversemappingcheck", sVerifyReverseMapping,SSHCFG_GLOBAL },
-	{ "clientaliveinterval", sClientAliveInterval, SSHCFG_GLOBAL },
-	{ "clientalivecountmax", sClientAliveCountMax, SSHCFG_GLOBAL },
-	{ "authorizedkeysfile", sAuthorizedKeysFile, SSHCFG_GLOBAL },
-	{ "authorizedkeysfile2", sAuthorizedKeysFile2, SSHCFG_GLOBAL },
-	{ "maxauthtries", sMaxAuthTries, SSHCFG_ALL },
-	{ "maxauthtrieslog", sMaxAuthTriesLog, SSHCFG_GLOBAL },
-	{ "useprivilegeseparation", sUsePrivilegeSeparation, SSHCFG_GLOBAL },
-	{ "lookupclienthostnames", sLookupClientHostnames, SSHCFG_GLOBAL },
-	{ "useopensslengine", sUseOpenSSLEngine, SSHCFG_GLOBAL },
-	{ "chrootdirectory", sChrootDirectory, SSHCFG_ALL },
-	{ "preuserauthhook", sPreUserauthHook, SSHCFG_ALL},
-	{ "match", sMatch, SSHCFG_ALL },
-	{ "pamserviceprefix", sPAMServicePrefix, SSHCFG_GLOBAL },
-	{ "pamservicename", sPAMServiceName, SSHCFG_GLOBAL },
-
-	{ NULL, sBadOption, 0 }
-};
-
-/*
- * Returns the number of the token pointed to by cp or sBadOption.
- */
-
-static ServerOpCodes
-parse_token(const char *cp, const char *filename,
-	    int linenum, u_int *flags)
-{
-	u_int i;
-
-	for (i = 0; keywords[i].name; i++)
-		if (strcasecmp(cp, keywords[i].name) == 0) {
-			*flags = keywords[i].flags;
-			return keywords[i].opcode;
-		}
-
-	error("%s: line %d: Bad configuration option: %s",
-	    filename, linenum, cp);
-	return sBadOption;
-}
-
-static void
-add_listen_addr(ServerOptions *options, char *addr, u_short port)
-{
-	int i;
-
-	if (options->num_ports == 0)
-		options->ports[options->num_ports++] = SSH_DEFAULT_PORT;
-	if (port == 0)
-		for (i = 0; i < options->num_ports; i++)
-			add_one_listen_addr(options, addr, options->ports[i]);
-	else
-		add_one_listen_addr(options, addr, port);
-}
-
-static void
-add_one_listen_addr(ServerOptions *options, char *addr, u_short port)
-{
-	struct addrinfo hints, *ai, *aitop;
-	char strport[NI_MAXSERV];
-	int gaierr;
-
-	(void) memset(&hints, 0, sizeof(hints));
-	hints.ai_family = IPv4or6;
-	hints.ai_socktype = SOCK_STREAM;
-	hints.ai_flags = (addr == NULL) ? AI_PASSIVE : 0;
-	(void) snprintf(strport, sizeof strport, "%u", port);
-	if ((gaierr = getaddrinfo(addr, strport, &hints, &aitop)) != 0)
-		fatal("bad addr or host: %s (%s)",
-		    addr ? addr : "<NULL>",
-		    gai_strerror(gaierr));
-	for (ai = aitop; ai->ai_next; ai = ai->ai_next)
-		;
-	ai->ai_next = options->listen_addrs;
-	options->listen_addrs = aitop;
-}
-
-/*
- * The strategy for the Match blocks is that the config file is parsed twice.
- *
- * The first time is at startup.  activep is initialized to 1 and the
- * directives in the global context are processed and acted on.  Hitting a
- * Match directive unsets activep and the directives inside the block are
- * checked for syntax only.
- *
- * The second time is after a connection has been established but before
- * authentication.  activep is initialized to 2 and global config directives
- * are ignored since they have already been processed.  If the criteria in a
- * Match block is met, activep is set and the subsequent directives
- * processed and actioned until EOF or another Match block unsets it.  Any
- * options set are copied into the main server config.
- *
- * Potential additions/improvements:
- *  - Add Match support for pre-kex directives, eg Protocol, Ciphers.
- *
- *  - Add a Tag directive (idea from David Leonard) ala pf, eg:
- *	Match Address 192.168.0.*
- *		Tag trusted
- *	Match Group wheel
- *		Tag trusted
- *	Match Tag trusted
- *		AllowTcpForwarding yes
- *		GatewayPorts clientspecified
- *		[...]
- *
- *  - Add a PermittedChannelRequests directive
- *	Match Group shell
- *		PermittedChannelRequests session,forwarded-tcpip
- */
-
-static int
-match_cfg_line_group(const char *grps, int line, const char *user)
-{
-	int result = 0;
-	struct passwd *pw;
-
-	if (user == NULL)
-		goto out;
-
-	if ((pw = getpwnam(user)) == NULL) {
-		debug("Can't match group at line %d because user %.100s does "
-		    "not exist", line, user);
-	} else if (ga_init(pw->pw_name, pw->pw_gid) == 0) {
-		debug("Can't Match group because user %.100s not in any group "
-		    "at line %d", user, line);
-	} else if (ga_match_pattern_list(grps) != 1) {
-		debug("user %.100s does not match group list %.100s at line %d",
-		    user, grps, line);
-	} else {
-		debug("user %.100s matched group list %.100s at line %d", user,
-		    grps, line);
-		result = 1;
-	}
-out:
-	ga_free();
-	return result;
-}
-
-static int
-match_cfg_line(char **condition, int line, const char *user, const char *host,
-    const char *address)
-{
-	int result = 1;
-	char *arg, *attrib, *cp = *condition;
-	size_t len;
-
-	if (user == NULL)
-		debug3("checking syntax for 'Match %s'", cp);
-	else
-		debug3("checking match for '%s' user %s host %s addr %s", cp,
-		    user ? user : "(null)", host ? host : "(null)",
-		    address ? address : "(null)");
-
-	while ((attrib = strdelim(&cp)) != NULL && *attrib != '\0') {
-		if ((arg = strdelim(&cp)) == NULL || *arg == '\0') {
-			error("Missing Match criteria for %s", attrib);
-			return -1;
-		}
-		len = strlen(arg);
-		if (strcasecmp(attrib, "user") == 0) {
-			if (!user) {
-				result = 0;
-				continue;
-			}
-			if (match_pattern_list(user, arg, len, 0) != 1)
-				result = 0;
-			else
-				debug("user %.100s matched 'User %.100s' at "
-				    "line %d", user, arg, line);
-		} else if (strcasecmp(attrib, "group") == 0) {
-			switch (match_cfg_line_group(arg, line, user)) {
-			case -1:
-				return -1;
-			case 0:
-				result = 0;
-			}
-		} else if (strcasecmp(attrib, "host") == 0) {
-			if (!host) {
-				result = 0;
-				continue;
-			}
-			if (match_hostname(host, arg, len) != 1)
-				result = 0;
-			else
-				debug("connection from %.100s matched 'Host "
-				    "%.100s' at line %d", host, arg, line);
-		} else if (strcasecmp(attrib, "address") == 0) {
-			switch (addr_match_list(address, arg)) {
-			case 1:
-				debug("connection from %.100s matched 'Address "
-				    "%.100s' at line %d", address, arg, line);
-				break;
-			case 0:
-			case -1:
-				result = 0;
-				break;
-			case -2:
-				return -1;
-			}
-		} else {
-			error("Unsupported Match attribute %s", attrib);
-			return -1;
-		}
-	}
-	if (user != NULL)
-		debug3("match %sfound", result ? "" : "not ");
-	*condition = cp;
-	return result;
-}
-
-#define WHITESPACE " \t\r\n"
-
-int
-process_server_config_line(ServerOptions *options, char *line,
-    const char *filename, int linenum, int *activep, const char *user,
-    const char *host, const char *address)
-{
-	char *cp, **charptr, *arg, *p;
-	int cmdline = 0, *intptr, value, n;
-	ServerOpCodes opcode;
-	u_int i, flags = 0;
-	size_t len;
-
-	cp = line;
-	arg = strdelim(&cp);
-	/* Ignore leading whitespace */
-	if (*arg == '\0')
-		arg = strdelim(&cp);
-	if (!arg || !*arg || *arg == '#')
-		return 0;
-	intptr = NULL;
-	charptr = NULL;
-	opcode = parse_token(arg, filename, linenum, &flags);
-
-	if (activep == NULL) { /* We are processing a command line directive */
-		cmdline = 1;
-		activep = &cmdline;
-	}
-	if (*activep && opcode != sMatch)
-		debug3("%s:%d setting %s %s", filename, linenum, arg, cp);
-	if (*activep == 0 && !(flags & SSHCFG_MATCH)) {
-		if (user == NULL) {
-			fatal("%s line %d: Directive '%s' is not allowed "
-			    "within a Match block", filename, linenum, arg);
-		} else { /* this is a directive we have already processed */
-			while (arg)
-				arg = strdelim(&cp);
-			return 0;
-		}
-	}
-
-	switch (opcode) {
-	/* Portable-specific options */
-	case sPAMAuthenticationViaKbdInt:
-		log("%s line %d: PAMAuthenticationViaKbdInt has been "
-		    "deprecated. You should use KbdInteractiveAuthentication "
-		    "instead (which defaults to \"yes\").", filename, linenum);
-		intptr = &options->pam_authentication_via_kbd_int;
-		goto parse_flag;
-
-	/* Standard Options */
-	case sBadOption:
-		return -1;
-	case sPort:
-		/* ignore ports from configfile if cmdline specifies ports */
-		if (options->ports_from_cmdline)
-			return 0;
-		if (options->listen_addrs != NULL)
-			fatal("%s line %d: ports must be specified before "
-			    "ListenAddress.", filename, linenum);
-		if (options->num_ports >= MAX_PORTS)
-			fatal("%s line %d: too many ports.",
-			    filename, linenum);
-		arg = strdelim(&cp);
-		if (!arg || *arg == '\0')
-			fatal("%s line %d: missing port number.",
-			    filename, linenum);
-		options->ports[options->num_ports++] = a2port(arg);
-		if (options->ports[options->num_ports-1] == 0)
-			fatal("%s line %d: Badly formatted port number.",
-			    filename, linenum);
-		break;
-
-	case sServerKeyBits:
-		intptr = &options->server_key_bits;
-parse_int:
-		arg = strdelim(&cp);
-		if (!arg || *arg == '\0')
-			fatal("%s line %d: missing integer value.",
-			    filename, linenum);
-		value = atoi(arg);
-		if (*activep && *intptr == -1)
-			*intptr = value;
-		break;
-
-	case sLoginGraceTime:
-		intptr = &options->login_grace_time;
-parse_time:
-		arg = strdelim(&cp);
-		if (!arg || *arg == '\0')
-			fatal("%s line %d: missing time value.",
-			    filename, linenum);
-		if ((value = convtime(arg)) == -1)
-			fatal("%s line %d: invalid time value.",
-			    filename, linenum);
-		if (*intptr == -1)
-			*intptr = value;
-		break;
-
-	case sKeyRegenerationTime:
-		intptr = &options->key_regeneration_time;
-		goto parse_time;
-
-	case sListenAddress:
-		arg = strdelim(&cp);
-		if (!arg || *arg == '\0' || strncmp(arg, "[]", 2) == 0)
-			fatal("%s line %d: missing inet addr.",
-			    filename, linenum);
-		if (*arg == '[') {
-			if ((p = strchr(arg, ']')) == NULL)
-				fatal("%s line %d: bad ipv6 inet addr usage.",
-				    filename, linenum);
-			arg++;
-			(void) memmove(p, p+1, strlen(p+1)+1);
-		} else if (((p = strchr(arg, ':')) == NULL) ||
-			    (strchr(p+1, ':') != NULL)) {
-			add_listen_addr(options, arg, 0);
-			break;
-		}
-		if (*p == ':') {
-			u_short port;
-
-			p++;
-			if (*p == '\0')
-				fatal("%s line %d: bad inet addr:port usage.",
-				    filename, linenum);
-			else {
-				*(p-1) = '\0';
-				if ((port = a2port(p)) == 0)
-					fatal("%s line %d: bad port number.",
-					    filename, linenum);
-				add_listen_addr(options, arg, port);
-			}
-		} else if (*p == '\0')
-			add_listen_addr(options, arg, 0);
-		else
-			fatal("%s line %d: bad inet addr usage.",
-			    filename, linenum);
-		break;
-
-	case sHostKeyFile:
-		intptr = &options->num_host_key_files;
-		if (*intptr >= MAX_HOSTKEYS)
-			fatal("%s line %d: too many host keys specified (max %d).",
-			    filename, linenum, MAX_HOSTKEYS);
-		charptr = &options->host_key_files[*intptr];
-parse_filename:
-		arg = strdelim(&cp);
-		if (!arg || *arg == '\0')
-			fatal("%s line %d: missing file name.",
-			    filename, linenum);
-		if (*activep && *charptr == NULL) {
-			*charptr = tilde_expand_filename(arg, getuid());
-			/* increase optional counter */
-			if (intptr != NULL)
-				*intptr = *intptr + 1;
-		}
-		break;
-
-	case sPidFile:
-		charptr = &options->pid_file;
-		goto parse_filename;
-
-	case sPermitRootLogin:
-		intptr = &options->permit_root_login;
-		arg = strdelim(&cp);
-		if (!arg || *arg == '\0')
-			fatal("%s line %d: missing yes/"
-			    "without-password/forced-commands-only/no "
-			    "argument.", filename, linenum);
-		value = 0;	/* silence compiler */
-		if (strcmp(arg, "without-password") == 0)
-			value = PERMIT_NO_PASSWD;
-		else if (strcmp(arg, "forced-commands-only") == 0)
-			value = PERMIT_FORCED_ONLY;
-		else if (strcmp(arg, "yes") == 0)
-			value = PERMIT_YES;
-		else if (strcmp(arg, "no") == 0)
-			value = PERMIT_NO;
-		else
-			fatal("%s line %d: Bad yes/"
-			    "without-password/forced-commands-only/no "
-			    "argument: %s", filename, linenum, arg);
-		if (*activep && *intptr == -1)
-			*intptr = value;
-		break;
-
-	case sIgnoreRhosts:
-		intptr = &options->ignore_rhosts;
-parse_flag:
-		arg = strdelim(&cp);
-		if (!arg || *arg == '\0')
-			fatal("%s line %d: missing yes/no argument.",
-			    filename, linenum);
-		value = 0;	/* silence compiler */
-		if (strcmp(arg, "yes") == 0)
-			value = 1;
-		else if (strcmp(arg, "no") == 0)
-			value = 0;
-		else
-			fatal("%s line %d: Bad yes/no argument: %s",
-				filename, linenum, arg);
-		if (*activep && *intptr == -1)
-			*intptr = value;
-		break;
-
-	case sIgnoreUserKnownHosts:
-		intptr = &options->ignore_user_known_hosts;
-		goto parse_flag;
-
-	case sRhostsAuthentication:
-		intptr = &options->rhosts_authentication;
-		goto parse_flag;
-
-	case sRhostsRSAAuthentication:
-		intptr = &options->rhosts_rsa_authentication;
-		goto parse_flag;
-
-	case sHostbasedAuthentication:
-		intptr = &options->hostbased_authentication;
-		goto parse_flag;
-
-	case sHostbasedUsesNameFromPacketOnly:
-		intptr = &options->hostbased_uses_name_from_packet_only;
-		goto parse_flag;
-
-	case sRSAAuthentication:
-		intptr = &options->rsa_authentication;
-		goto parse_flag;
-
-	case sPubkeyAuthentication:
-		intptr = &options->pubkey_authentication;
-		goto parse_flag;
-#ifdef GSSAPI
-	case sGssAuthentication:
-		intptr = &options->gss_authentication;
-		goto parse_flag;
-	case sGssKeyEx:
-		intptr = &options->gss_keyex;
-		goto parse_flag;
-	case sGssStoreDelegCreds:
-		intptr = &options->gss_keyex;
-		goto parse_flag;
-#ifndef SUNW_GSSAPI
-	case sGssUseSessionCredCache:
-		intptr = &options->gss_use_session_ccache;
-		goto parse_flag;
-	case sGssCleanupCreds:
-		intptr = &options->gss_cleanup_creds;
-		goto parse_flag;
-#endif /* SUNW_GSSAPI */
-#endif /* GSSAPI */
-#if defined(KRB4) || defined(KRB5)
-	case sKerberosAuthentication:
-		intptr = &options->kerberos_authentication;
-		goto parse_flag;
-
-	case sKerberosOrLocalPasswd:
-		intptr = &options->kerberos_or_local_passwd;
-		goto parse_flag;
-
-	case sKerberosTicketCleanup:
-		intptr = &options->kerberos_ticket_cleanup;
-		goto parse_flag;
-#endif
-#if defined(AFS) || defined(KRB5)
-	case sKerberosTgtPassing:
-		intptr = &options->kerberos_tgt_passing;
-		goto parse_flag;
-#endif
-#ifdef AFS
-	case sAFSTokenPassing:
-		intptr = &options->afs_token_passing;
-		goto parse_flag;
-#endif
-
-	case sPasswordAuthentication:
-		intptr = &options->password_authentication;
-		goto parse_flag;
-
-	case sKbdInteractiveAuthentication:
-		intptr = &options->kbd_interactive_authentication;
-		goto parse_flag;
-
-	case sChallengeResponseAuthentication:
-		intptr = &options->challenge_response_authentication;
-		goto parse_flag;
-
-	case sPrintMotd:
-		intptr = &options->print_motd;
-		goto parse_flag;
-
-	case sPrintLastLog:
-		log("%s line %d: ignoring PrintLastLog option value."
-		    " This option is always on.", filename, linenum);
-		while (arg)
-			arg = strdelim(&cp);
-		break;
-
-	case sX11Forwarding:
-		intptr = &options->x11_forwarding;
-		goto parse_flag;
-
-	case sX11DisplayOffset:
-		intptr = &options->x11_display_offset;
-		goto parse_int;
-
-	case sX11UseLocalhost:
-		intptr = &options->x11_use_localhost;
-		goto parse_flag;
-
-	case sXAuthLocation:
-		charptr = &options->xauth_location;
-		goto parse_filename;
-
-	case sStrictModes:
-		intptr = &options->strict_modes;
-		goto parse_flag;
-
-	case sKeepAlives:
-		intptr = &options->keepalives;
-		goto parse_flag;
-
-	case sEmptyPasswd:
-		intptr = &options->permit_empty_passwd;
-		goto parse_flag;
-
-	case sPermitUserEnvironment:
-		intptr = &options->permit_user_env;
-		goto parse_flag;
-
-	case sUseLogin:
-		log("%s line %d: ignoring UseLogin option value."
-		    " This option is always off.", filename, linenum);
-		while (arg)
-			arg = strdelim(&cp);
-		break;
-
-	case sCompression:
-		intptr = &options->compression;
-		goto parse_flag;
-
-	case sGatewayPorts:
-		intptr = &options->gateway_ports;
-		arg = strdelim(&cp);
-		if (!arg || *arg == '\0')
-			fatal("%s line %d: missing yes/no/clientspecified "
-			    "argument.", filename, linenum);
-		value = 0;	/* silence compiler */
-		if (strcmp(arg, "clientspecified") == 0)
-			value = 2;
-		else if (strcmp(arg, "yes") == 0)
-			value = 1;
-		else if (strcmp(arg, "no") == 0)
-			value = 0;
-		else
-			fatal("%s line %d: Bad yes/no/clientspecified "
-			    "argument: %s", filename, linenum, arg);
-		if (*activep && *intptr == -1)
-			*intptr = value;
-		break;
-
-	case sVerifyReverseMapping:
-		intptr = &options->verify_reverse_mapping;
-		goto parse_flag;
-
-	case sLogFacility:
-		intptr = (int *) &options->log_facility;
-		arg = strdelim(&cp);
-		value = log_facility_number(arg);
-		if (value == SYSLOG_FACILITY_NOT_SET)
-			fatal("%.200s line %d: unsupported log facility '%s'",
-			    filename, linenum, arg ? arg : "<NONE>");
-		if (*intptr == -1)
-			*intptr = (SyslogFacility) value;
-		break;
-
-	case sLogLevel:
-		intptr = (int *) &options->log_level;
-		arg = strdelim(&cp);
-		value = log_level_number(arg);
-		if (value == SYSLOG_LEVEL_NOT_SET)
-			fatal("%.200s line %d: unsupported log level '%s'",
-			    filename, linenum, arg ? arg : "<NONE>");
-		if (*intptr == -1)
-			*intptr = (LogLevel) value;
-		break;
-
-	case sAllowTcpForwarding:
-		intptr = &options->allow_tcp_forwarding;
-		goto parse_flag;
-
-	case sUsePrivilegeSeparation:
-		log("%s line %d: ignoring UsePrivilegeSeparation option value."
-		    " This option is always on.", filename, linenum);
-		while (arg)
-			arg = strdelim(&cp);
-		break;
-
-	case sAllowUsers:
-		while (((arg = strdelim(&cp)) != NULL) && *arg != '\0') {
-			if (options->num_allow_users >= MAX_ALLOW_USERS)
-				fatal("%s line %d: too many allow users.",
-				    filename, linenum);
-			options->allow_users[options->num_allow_users++] =
-			    xstrdup(arg);
-		}
-		break;
-
-	case sDenyUsers:
-		while (((arg = strdelim(&cp)) != NULL) && *arg != '\0') {
-			if (options->num_deny_users >= MAX_DENY_USERS)
-				fatal( "%s line %d: too many deny users.",
-				    filename, linenum);
-			options->deny_users[options->num_deny_users++] =
-			    xstrdup(arg);
-		}
-		break;
-
-	case sAllowGroups:
-		while (((arg = strdelim(&cp)) != NULL) && *arg != '\0') {
-			if (options->num_allow_groups >= MAX_ALLOW_GROUPS)
-				fatal("%s line %d: too many allow groups.",
-				    filename, linenum);
-			options->allow_groups[options->num_allow_groups++] =
-			    xstrdup(arg);
-		}
-		break;
-
-	case sDenyGroups:
-		while (((arg = strdelim(&cp)) != NULL) && *arg != '\0') {
-			if (options->num_deny_groups >= MAX_DENY_GROUPS)
-				fatal("%s line %d: too many deny groups.",
-				    filename, linenum);
-			options->deny_groups[options->num_deny_groups++] = xstrdup(arg);
-		}
-		break;
-
-	case sCiphers:
-		arg = strdelim(&cp);
-		if (!arg || *arg == '\0')
-			fatal("%s line %d: Missing argument.", filename, linenum);
-		if (!ciphers_valid(arg))
-			fatal("%s line %d: Bad SSH2 cipher spec '%s'.",
-			    filename, linenum, arg ? arg : "<NONE>");
-		if (options->ciphers == NULL)
-			options->ciphers = xstrdup(arg);
-		break;
-
-	case sMacs:
-		arg = strdelim(&cp);
-		if (!arg || *arg == '\0')
-			fatal("%s line %d: Missing argument.", filename, linenum);
-		if (!mac_valid(arg))
-			fatal("%s line %d: Bad SSH2 mac spec '%s'.",
-			    filename, linenum, arg ? arg : "<NONE>");
-		if (options->macs == NULL)
-			options->macs = xstrdup(arg);
-		break;
-
-	case sProtocol:
-		intptr = &options->protocol;
-		arg = strdelim(&cp);
-		if (!arg || *arg == '\0')
-			fatal("%s line %d: Missing argument.", filename, linenum);
-		value = proto_spec(arg);
-		if (value == SSH_PROTO_UNKNOWN)
-			fatal("%s line %d: Bad protocol spec '%s'.",
-			    filename, linenum, arg ? arg : "<NONE>");
-		if (*intptr == SSH_PROTO_UNKNOWN)
-			*intptr = value;
-		break;
-
-	case sSubsystem:
-		if (options->num_subsystems >= MAX_SUBSYSTEMS) {
-			fatal("%s line %d: too many subsystems defined.",
-			    filename, linenum);
-		}
-		arg = strdelim(&cp);
-		if (!arg || *arg == '\0')
-			fatal("%s line %d: Missing subsystem name.",
-			    filename, linenum);
-		if (!*activep) {
-			arg = strdelim(&cp);
-			break;
-		}
-		for (i = 0; i < options->num_subsystems; i++)
-			if (strcmp(arg, options->subsystem_name[i]) == 0)
-				fatal("%s line %d: Subsystem '%s' already defined.",
-				    filename, linenum, arg);
-		options->subsystem_name[options->num_subsystems] = xstrdup(arg);
-		arg = strdelim(&cp);
-		if (!arg || *arg == '\0')
-			fatal("%s line %d: Missing subsystem command.",
-			    filename, linenum);
-		options->subsystem_command[options->num_subsystems] = xstrdup(arg);
-
-		/*
-		 * Collect arguments (separate to executable), including the
-		 * name of the executable, in a way that is easier to parse
-		 * later.
-		 */
-		p = xstrdup(arg);
-		len = strlen(p) + 1;
-		while ((arg = strdelim(&cp)) != NULL && *arg != '\0') {
-			len += 1 + strlen(arg);
-			p = xrealloc(p, len);
-			strlcat(p, " ", len);
-			strlcat(p, arg, len);
-		}
-		options->subsystem_args[options->num_subsystems] = p;
-		options->num_subsystems++;
-		break;
-
-	case sMaxStartups:
-		arg = strdelim(&cp);
-		if (!arg || *arg == '\0')
-			fatal("%s line %d: Missing MaxStartups spec.",
-			    filename, linenum);
-		if ((n = sscanf(arg, "%d:%d:%d",
-		    &options->max_startups_begin,
-		    &options->max_startups_rate,
-		    &options->max_startups)) == 3) {
-			if (options->max_startups_begin >
-			    options->max_startups ||
-			    options->max_startups_rate > 100 ||
-			    options->max_startups_rate < 1)
-				fatal("%s line %d: Illegal MaxStartups spec.",
-				    filename, linenum);
-		} else if (n != 1)
-			fatal("%s line %d: Illegal MaxStartups spec.",
-			    filename, linenum);
-		else
-			options->max_startups = options->max_startups_begin;
-		break;
-
-	case sBanner:
-		charptr = &options->banner;
-		goto parse_filename;
-	/*
-	 * These options can contain %X options expanded at
-	 * connect time, so that you can specify paths like:
-	 *
-	 * AuthorizedKeysFile	/etc/ssh_keys/%u
-	 */
-	case sAuthorizedKeysFile:
-	case sAuthorizedKeysFile2:
-		charptr = (opcode == sAuthorizedKeysFile) ?
-		    &options->authorized_keys_file :
-		    &options->authorized_keys_file2;
-		goto parse_filename;
-
-	case sClientAliveInterval:
-		intptr = &options->client_alive_interval;
-		goto parse_time;
-
-	case sClientAliveCountMax:
-		intptr = &options->client_alive_count_max;
-		goto parse_int;
-
-	case sMaxAuthTries:
-		intptr = &options->max_auth_tries;
-		goto parse_int;
-
-	case sMaxAuthTriesLog:
-		intptr = &options->max_auth_tries_log;
-		goto parse_int;
-
-	case sLookupClientHostnames:
-		intptr = &options->lookup_client_hostnames;
-		goto parse_flag;
-
-	case sUseOpenSSLEngine:
-		intptr = &options->use_openssl_engine;
-		goto parse_flag;
-
-	case sChrootDirectory:
-		charptr = &options->chroot_directory;
-
-		arg = strdelim(&cp);
-		if (arg == NULL || *arg == '\0')
-			fatal("%s line %d: missing directory name for "
-			    "ChrootDirectory.", filename, linenum);
-		if (*activep && *charptr == NULL)
-			*charptr = xstrdup(arg);
-		break;
-
-	case sPreUserauthHook:
-		charptr = &options->pre_userauth_hook;
-		goto parse_filename;
-
-	case sMatch:
-		if (cmdline)
-			fatal("Match directive not supported as a command-line "
-			   "option");
-		value = match_cfg_line(&cp, linenum, user, host, address);
-		if (value < 0)
-			fatal("%s line %d: Bad Match condition", filename,
-			    linenum);
-		*activep = value;
-		break;
-
-	case sDeprecated:
-		log("%s line %d: Deprecated option %s",
-		    filename, linenum, arg);
-		while (arg)
-		    arg = strdelim(&cp);
-		break;
-
-	case sPAMServicePrefix:
-		arg = strdelim(&cp);
-		if (!arg || *arg == '\0')
-			fatal("%s line %d: Missing argument.",
-			    filename, linenum);
-		if (options->pam_service_name != NULL)
-			fatal("%s line %d: PAMServiceName and PAMServicePrefix "
-			    "are mutually exclusive.", filename, linenum);
-		if (options->pam_service_prefix == NULL)
-			options->pam_service_prefix = xstrdup(arg);
-		break;
-
-	case sPAMServiceName:
-		arg = strdelim(&cp);
-		if (!arg || *arg == '\0')
-			fatal("%s line %d: Missing argument.",
-			    filename, linenum);
-		if (options->pam_service_prefix != NULL)
-			fatal("%s line %d: PAMServiceName and PAMServicePrefix "
-			    "are mutually exclusive.", filename, linenum);
-		if (options->pam_service_name == NULL)
-			options->pam_service_name = xstrdup(arg);
-		break;
-
-	default:
-		fatal("%s line %d: Missing handler for opcode %s (%d)",
-		    filename, linenum, arg, opcode);
-	}
-	if ((arg = strdelim(&cp)) != NULL && *arg != '\0')
-		fatal("%s line %d: garbage at end of line; \"%.200s\".",
-		    filename, linenum, arg);
-	return 0;
-}
-
-
-/* Reads the server configuration file. */
-
-void
-load_server_config(const char *filename, Buffer *conf)
-{
-	char line[1024], *cp;
-	FILE *f;
-
-	debug2("%s: filename %s", __func__, filename);
-	if ((f = fopen(filename, "r")) == NULL) {
-		perror(filename);
-		exit(1);
-	}
-	buffer_clear(conf);
-	while (fgets(line, sizeof(line), f)) {
-		/*
-		 * Trim out comments and strip whitespace
-		 * NB - preserve newlines, they are needed to reproduce
-		 * line numbers later for error messages
-		 */
-		if ((cp = strchr(line, '#')) != NULL)
-			memcpy(cp, "\n", 2);
-		cp = line + strspn(line, " \t\r");
-
-		buffer_append(conf, cp, strlen(cp));
-	}
-	buffer_append(conf, "\0", 1);
-	fclose(f);
-	debug2("%s: done config len = %d", __func__, buffer_len(conf));
-}
-
-void
-parse_server_match_config(ServerOptions *options, const char *user,
-    const char *host, const char *address)
-{
-	ServerOptions mo;
-
-	initialize_server_options(&mo);
-	parse_server_config(&mo, "reprocess config", &cfg, user, host, address);
-	copy_set_server_options(options, &mo, 0);
-}
-
-
-
-/* Helper macros */
-#define M_CP_INTOPT(n) do {\
-	if (src->n != -1) \
-		dst->n = src->n; \
-} while (0)
-#define M_CP_STROPT(n) do {\
-	if (src->n != NULL) { \
-		if (dst->n != NULL) \
-			xfree(dst->n); \
-		dst->n = src->n; \
-	} \
-} while(0)
-
-/*
- * Copy any supported values that are set.
- *
- * If the preauth flag is set, we do not bother copying the the string or
- * array values that are not used pre-authentication, because any that we
- * do use must be explictly sent in mm_getpwnamallow().
- */
-void
-copy_set_server_options(ServerOptions *dst, ServerOptions *src, int preauth)
-{
-	M_CP_INTOPT(password_authentication);
-	M_CP_INTOPT(gss_authentication);
-	M_CP_INTOPT(rsa_authentication);
-	M_CP_INTOPT(pubkey_authentication);
-	M_CP_INTOPT(hostbased_authentication);
-	M_CP_INTOPT(kbd_interactive_authentication);
-	M_CP_INTOPT(permit_root_login);
-	M_CP_INTOPT(permit_empty_passwd);
-	M_CP_INTOPT(allow_tcp_forwarding);
-	M_CP_INTOPT(gateway_ports);
-	M_CP_INTOPT(x11_display_offset);
-	M_CP_INTOPT(x11_forwarding);
-	M_CP_INTOPT(x11_use_localhost);
-	M_CP_INTOPT(max_auth_tries);
-	M_CP_STROPT(banner);
-
-	if (preauth)
-		return;
-	M_CP_STROPT(chroot_directory);
-}
-
-#undef M_CP_INTOPT
-#undef M_CP_STROPT
-
-void
-parse_server_config(ServerOptions *options, const char *filename, Buffer *conf,
-    const char *user, const char *host, const char *address)
-{
-	int active, linenum, bad_options = 0;
-	char *cp, *obuf, *cbuf;
-
-	debug2("%s: config %s len %d", __func__, filename, buffer_len(conf));
-
-	obuf = cbuf = xstrdup(buffer_ptr(conf));
-	active = user ? 0 : 1;
-	linenum = 1;
-	while ((cp = strsep(&cbuf, "\n")) != NULL) {
-		if (process_server_config_line(options, cp, filename,
-		    linenum++, &active, user, host, address) != 0)
-			bad_options++;
-	}
-	xfree(obuf);
-	if (bad_options > 0)
-		fatal("%s: terminating, %d bad configuration options",
-		    filename, bad_options);
-}
-
-
-/*
- * Note that "none" is a special path having the same affect on sshd
- * configuration as not specifying ChrootDirectory at all.
- */
-int
-chroot_requested(char *chroot_directory)
-{
-	return (chroot_directory != NULL &&
-	    strcasecmp(chroot_directory, "none") != 0);
-}
