Hopefully things did not get mixed around too much. It compiles under

Linux and works. So that is at least a good sign. =) 20010122 - (bal) OpenBSD Resync - markus@cvs.openbsd.org 2001/01/19 12:45:26 GMT 2001 by markus [servconf.c ssh.h sshd.c] only auth-chall.c needs #ifdef SKEY - markus@cvs.openbsd.org 2001/01/19 15:55:10 GMT 2001 by markus [auth-krb4.c auth-options.c auth-rh-rsa.c auth-rhosts.c auth-rsa.c auth1.c auth2.c channels.c clientloop.c dh.c dispatch.c nchan.c packet.c pathname.h readconf.c scp.c servconf.c serverloop.c session.c ssh-add.c ssh-keygen.c ssh-keyscan.c ssh.c ssh.h ssh1.h sshconnect1.c sshd.c ttymodes.c] move ssh1 definitions to ssh1.h, pathnames to pathnames.h - markus@cvs.openbsd.org 2001/01/19 16:48:14 [sshd.8] fix typo; from stevesk@ - markus@cvs.openbsd.org 2001/01/19 16:50:58 [ssh-dss.c] clear and free digest, make consistent with other code (use dlen); from stevesk@ - markus@cvs.openbsd.org 2001/01/20 15:55:20 GMT 2001 by markus [auth-options.c auth-options.h auth-rsa.c auth2.c] pass the filename to auth_parse_options() - markus@cvs.openbsd.org 2001/01/20 17:59:40 GMT 2001 [readconf.c] fix SIGSEGV from -o ""; problem noted by jehsom@togetherweb.com - stevesk@cvs.openbsd.org 2001/01/20 18:20:29 [sshconnect2.c] dh_new_group() does not return NULL. ok markus@ - markus@cvs.openbsd.org 2001/01/20 21:33:42 [ssh-add.c] do not loop forever if askpass does not exist; from andrew@pimlott.ne.mediaone.net - djm@cvs.openbsd.org 2001/01/20 23:00:56 [servconf.c] Check for NULL return from strdelim; ok markus - djm@cvs.openbsd.org 2001/01/20 23:02:07 [readconf.c] KNF; ok markus - jakob@cvs.openbsd.org 2001/01/21 9:00:33 [ssh-keygen.1] remove -R flag; ok markus@ - markus@cvs.openbsd.org 2001/01/21 19:05:40 [atomicio.c automicio.h auth-chall.c auth-krb4.c auth-options.c auth-options.h auth-passwd.c auth-rh-rsa.c auth-rhosts.c auth-rsa.c auth.c auth.h auth1.c auth2-chall.c auth2.c authfd.c authfile.c bufaux.c bufaux.h buffer.c canahost.c canahost.h channels.c cipher.c cli.c clientloop.c clientloop.h compat.c compress.c deattack.c dh.c dispatch.c groupaccess.c hmac.c hostfile.c kex.c key.c key.h log-client.c log-server.c log.c log.h login.c login.h match.c misc.c misc.h nchan.c packet.c pty.c radix.h readconf.c readpass.c readpass.h rsa.c scp.c servconf.c serverloop.c serverloop.h session.c sftp-server.c ssh-add.c ssh-agent.c ssh-dss.c ssh-keygen.c ssh-keyscan.c ssh-rsa.c ssh.c ssh.h sshconnect.c sshconnect.h sshconnect1.c sshconnect2.c sshd.c tildexpand.c tildexpand.h ttysmodes.c uidswap.c xmalloc.c] split ssh.h and try to cleanup the #include mess. remove unnecessary #includes. rename util.[ch] -> misc.[ch] - (bal) renamed 'PIDDIR' to '_PATH_SSH_PIDDIR' to match OpenBSD tree - (bal) Moved #ifdef KRB4 in auth-krb4.c above the #include to resolve conflict when compiling for non-kerb install - (bal) removed the #ifdef SKEY in auth1.c to match Markus' changes on 1/19.
2001-01-22 05:34:40 +00:00 · 2001-01-22 05:34:40 +00:00 · 226cfa0378
parent 401d58f361
commit 226cfa0378
91 changed files with 1170 additions and 846 deletions
--- a/63
+++ b/63
@ -1,3 +1,66 @@
+20010122
+ - (bal) OpenBSD Resync
+   - markus@cvs.openbsd.org 2001/01/19 12:45:26 GMT 2001 by markus
+     [servconf.c ssh.h sshd.c]
+     only auth-chall.c needs #ifdef SKEY
+   - markus@cvs.openbsd.org 2001/01/19 15:55:10 GMT 2001 by markus
+     [auth-krb4.c auth-options.c auth-rh-rsa.c auth-rhosts.c auth-rsa.c
+      auth1.c auth2.c channels.c clientloop.c dh.c dispatch.c nchan.c
+      packet.c pathname.h readconf.c scp.c servconf.c serverloop.c
+      session.c ssh-add.c ssh-keygen.c ssh-keyscan.c ssh.c ssh.h
+      ssh1.h sshconnect1.c sshd.c ttymodes.c]
+     move ssh1 definitions to ssh1.h, pathnames to pathnames.h
+   - markus@cvs.openbsd.org 2001/01/19 16:48:14
+     [sshd.8]
+     fix typo; from stevesk@
+   - markus@cvs.openbsd.org 2001/01/19 16:50:58
+     [ssh-dss.c]
+     clear and free digest, make consistent with other code (use dlen); from 
+     stevesk@
+   - markus@cvs.openbsd.org 2001/01/20 15:55:20 GMT 2001 by markus
+     [auth-options.c auth-options.h auth-rsa.c auth2.c]
+     pass the filename to auth_parse_options()
+   - markus@cvs.openbsd.org 2001/01/20 17:59:40 GMT 2001 
+     [readconf.c]
+     fix SIGSEGV from -o ""; problem noted by jehsom@togetherweb.com
+   - stevesk@cvs.openbsd.org 2001/01/20 18:20:29
+     [sshconnect2.c]
+     dh_new_group() does not return NULL.  ok markus@
+   - markus@cvs.openbsd.org 2001/01/20 21:33:42
+     [ssh-add.c]
+     do not loop forever if askpass does not exist; from 
+     andrew@pimlott.ne.mediaone.net
+   - djm@cvs.openbsd.org 2001/01/20 23:00:56
+     [servconf.c]
+     Check for NULL return from strdelim; ok markus
+   - djm@cvs.openbsd.org 2001/01/20 23:02:07
+     [readconf.c]
+     KNF; ok markus
+   - jakob@cvs.openbsd.org 2001/01/21 9:00:33
+     [ssh-keygen.1]
+     remove -R flag; ok markus@
+   - markus@cvs.openbsd.org 2001/01/21 19:05:40
+     [atomicio.c automicio.h auth-chall.c auth-krb4.c auth-options.c
+      auth-options.h auth-passwd.c auth-rh-rsa.c auth-rhosts.c auth-rsa.c
+      auth.c auth.h auth1.c auth2-chall.c auth2.c authfd.c authfile.c
+      bufaux.c  bufaux.h buffer.c canahost.c canahost.h channels.c
+      cipher.c cli.c clientloop.c clientloop.h compat.c compress.c
+      deattack.c dh.c dispatch.c groupaccess.c hmac.c hostfile.c kex.c
+      key.c key.h log-client.c log-server.c log.c log.h login.c login.h
+      match.c misc.c misc.h nchan.c packet.c pty.c radix.h readconf.c
+      readpass.c readpass.h rsa.c scp.c servconf.c serverloop.c serverloop.h
+      session.c sftp-server.c ssh-add.c ssh-agent.c ssh-dss.c ssh-keygen.c
+      ssh-keyscan.c ssh-rsa.c ssh.c ssh.h sshconnect.c sshconnect.h 
+      sshconnect1.c sshconnect2.c sshd.c tildexpand.c tildexpand.h
+      ttysmodes.c uidswap.c xmalloc.c]
+     split ssh.h and try to cleanup the #include mess. remove unnecessary 
+     #includes.  rename util.[ch] -> misc.[ch]
+ - (bal) renamed 'PIDDIR' to '_PATH_SSH_PIDDIR' to match OpenBSD tree
+ - (bal) Moved #ifdef KRB4 in auth-krb4.c above the #include to resolve 
+   conflict when compiling for non-kerb install
+ - (bal) removed the #ifdef SKEY in auth1.c to match Markus' changes
+   on 1/19.
+
 20010120
 - (bal) OpenBSD Resync
   - markus@cvs.openbsd.org 2001/01/19 12:45:26
--- a/Makefile.in
+++ b/Makefile.in
@ -37,7 +37,7 @@ INSTALL_SSH_PRNG_CMDS=@INSTALL_SSH_PRNG_CMDS@

 TARGETS=ssh$(EXEEXT) sshd$(EXEEXT) ssh-add$(EXEEXT) ssh-keygen$(EXEEXT) ssh-keyscan${EXEEXT} ssh-agent$(EXEEXT) scp$(EXEEXT) $(SFTP-SERVER)

-LIBSSH_OBJS=atomicio.o authfd.o authfile.o bufaux.o buffer.o canohost.o channels.o cipher.o cli.o compat.o compress.o crc32.o cygwin_util.o deattack.o dispatch.o hmac.o hostfile.o key.o kex.o log.o match.o mpaux.o nchan.o packet.o radix.o rijndael.o entropy.o readpass.o rsa.o ssh-dss.o ssh-rsa.o tildexpand.o ttymodes.o uidswap.o util.o uuencode.o xmalloc.o 
+LIBSSH_OBJS=atomicio.o authfd.o authfile.o bufaux.o buffer.o canohost.o channels.o cipher.o cli.o compat.o compress.o crc32.o cygwin_util.o deattack.o dispatch.o hmac.o hostfile.o key.o kex.o log.o match.o misc.o mpaux.o nchan.o packet.o radix.o rijndael.o entropy.o readpass.o rsa.o ssh-dss.o ssh-rsa.o tildexpand.o ttymodes.o uidswap.o uuencode.o xmalloc.o 

 LIBOPENBSD_COMPAT_OBJS=bsd-arc4random.o bsd-base64.o bsd-bindresvport.o bsd-daemon.o bsd-getcwd.o bsd-getgrouplist.o bsd-inet_aton.o bsd-inet_ntoa.o bsd-misc.o bsd-mktemp.o bsd-realpath.o bsd-rresvport.o bsd-setenv.o bsd-sigaction.o bsd-snprintf.o bsd-strlcat.o bsd-strlcpy.o bsd-strmode.o bsd-strsep.o bsd-strtok.o bsd-vis.o bsd-setproctitle.o bsd-waitpid.o fake-getaddrinfo.o fake-getnameinfo.o next-posix.o

--- a/acconfig.h
+++ b/acconfig.h
@ -268,7 +268,7 @@
 #undef USER_PATH

 /* Specify location of ssh.pid */
-#undef PIDDIR
+#undef _PATH_SSH_PIDDIR

 /* Use IPv4 for connection by default, IPv6 can still if explicity asked */
 #undef IPV4_DEFAULT
--- a/atomicio.c
+++ b/atomicio.c
@ -24,10 +24,10 @@
 */

 #include "includes.h"
-RCSID("$OpenBSD: atomicio.c,v 1.7 2000/10/18 18:04:02 markus Exp $");
+RCSID("$OpenBSD: atomicio.c,v 1.8 2001/01/21 19:05:40 markus Exp $");

 #include "xmalloc.h"
-#include "ssh.h"
+#include "atomicio.h"

 /*
 * ensure all of data on socket comes through. f==read || f==write
--- a/atomicio.h
+++ b/atomicio.h
@ -0,0 +1,29 @@
+/*
+ * Copyright (c) 1995,1999 Theo de Raadt
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * Ensure all of data on socket comes through. f==read || f==write
+ */
+ssize_t	atomicio(ssize_t (*f)(), int fd, void *s, size_t n);
--- a/auth-chall.c
+++ b/auth-chall.c
@ -23,9 +23,8 @@
 */

 #include "includes.h"
-RCSID("$OpenBSD: auth-chall.c,v 1.2 2001/01/19 12:45:26 markus Exp $");
+RCSID("$OpenBSD: auth-chall.c,v 1.3 2001/01/21 19:05:41 markus Exp $");

-#include "ssh.h"
 #include "auth.h"

 #ifdef SKEY
--- a/auth-krb4.c
+++ b/auth-krb4.c
@ -23,14 +23,18 @@
 */

 #include "includes.h"
-#include "packet.h"
-#include "xmalloc.h"
-#include "ssh.h"
-#include "servconf.h"
-
-RCSID("$OpenBSD: auth-krb4.c,v 1.20 2000/12/19 23:17:54 markus Exp $");
+RCSID("$OpenBSD: auth-krb4.c,v 1.22 2001/01/21 19:05:41 markus Exp $");

 #ifdef KRB4
+#include "ssh.h"
+#include "ssh1.h"
+#include "packet.h"
+#include "xmalloc.h"
+#include "log.h"
+#include "servconf.h"
+#include "auth.h"
+#include "radix.h"
+
 char *ticket = NULL;

 extern ServerOptions options;
--- a/auth-options.c
+++ b/auth-options.c
@ -10,12 +10,14 @@
 */

 #include "includes.h"
-RCSID("$OpenBSD: auth-options.c,v 1.8 2001/01/13 18:38:00 markus Exp $");
+RCSID("$OpenBSD: auth-options.c,v 1.11 2001/01/21 19:05:41 markus Exp $");

-#include "ssh.h"
 #include "packet.h"
 #include "xmalloc.h"
 #include "match.h"
+#include "log.h"
+#include "canohost.h"
+#include "auth-options.h"

 /* Flags set authorized_keys flags */
 int no_port_forwarding_flag = 0;
@ -48,9 +50,12 @@ auth_clear_options(void)
 	}
 }

-/* return 1 if access is granted, 0 if not. side effect: sets key option flags */
+/*
+ * return 1 if access is granted, 0 if not.
+ * side effect: sets key option flags
+ */
 int
-auth_parse_options(struct passwd *pw, char *options, u_long linenum)
+auth_parse_options(struct passwd *pw, char *options, char *file, u_long linenum)
 {
 	const char *cp;
 	if (!options)
@ -106,9 +111,9 @@ auth_parse_options(struct passwd *pw, char *options, u_long linenum)
 			}
 			if (!*options) {
 				debug("%.100s, line %lu: missing end quote",
-				    SSH_USER_PERMITTED_KEYS, linenum);
+				    file, linenum);
 				packet_send_debug("%.100s, line %lu: missing end quote",
-				    SSH_USER_PERMITTED_KEYS, linenum);
+				    file, linenum);
 				continue;
 			}
 			forced_command[i] = 0;
@ -136,9 +141,9 @@ auth_parse_options(struct passwd *pw, char *options, u_long linenum)
 			}
 			if (!*options) {
 				debug("%.100s, line %lu: missing end quote",
-				    SSH_USER_PERMITTED_KEYS, linenum);
+				    file, linenum);
 				packet_send_debug("%.100s, line %lu: missing end quote",
-				    SSH_USER_PERMITTED_KEYS, linenum);
+				    file, linenum);
 				continue;
 			}
 			s[i] = 0;
@ -170,9 +175,9 @@ auth_parse_options(struct passwd *pw, char *options, u_long linenum)
 			}
 			if (!*options) {
 				debug("%.100s, line %lu: missing end quote",
-				    SSH_USER_PERMITTED_KEYS, linenum);
+				    file, linenum);
 				packet_send_debug("%.100s, line %lu: missing end quote",
-				    SSH_USER_PERMITTED_KEYS, linenum);
+				    file, linenum);
 				continue;
 			}
 			patterns[i] = 0;
@ -219,9 +224,9 @@ next_option:

 bad_option:
 	log("Bad options in %.100s file, line %lu: %.50s",
-	    SSH_USER_PERMITTED_KEYS, linenum, options);
+	    file, linenum, options);
 	packet_send_debug("Bad options in %.100s file, line %lu: %.50s",
-	    SSH_USER_PERMITTED_KEYS, linenum, options);
+	    file, linenum, options);
 	/* deny access */
 	return 0;
 }
--- a/auth-options.h
+++ b/auth-options.h
@ -11,10 +11,17 @@
 * called by a name other than "ssh" or "Secure Shell".
 */

-/* $OpenBSD: auth-options.h,v 1.6 2000/12/19 23:17:55 markus Exp $ */
+/* $OpenBSD: auth-options.h,v 1.8 2001/01/21 19:05:42 markus Exp $ */

 #ifndef AUTH_OPTIONS_H
 #define AUTH_OPTIONS_H
+
+/* Linked list of custom environment strings */
+struct envstring {
+	struct envstring *next;
+	char   *s;
+};
+
 /* Flags that may be set in authorized_keys options. */
 extern int no_port_forwarding_flag;
 extern int no_agent_forwarding_flag;
@ -23,8 +30,14 @@ extern int no_pty_flag;
 extern char *forced_command;
 extern struct envstring *custom_environment;

-/* return 1 if access is granted, 0 if not. side effect: sets key option flags */
-int	auth_parse_options(struct passwd *pw, char *options, u_long linenum);
+/*
+ * return 1 if access is granted, 0 if not.
+ * side effect: sets key option flags
+ */
+int
+auth_parse_options(struct passwd *pw, char *options, char *file,
+    u_long linenum);
+
 /* reset options flags */
 void	auth_clear_options(void);

--- a/auth-pam.c
+++ b/auth-pam.c
@ -27,9 +27,12 @@
 #ifdef USE_PAM
 #include "ssh.h"
 #include "xmalloc.h"
+#include "log.h"
 #include "servconf.h"
+#include "canohost.h"
+#include "readpass.h"

-RCSID("$Id: auth-pam.c,v 1.21 2001/01/19 04:46:38 djm Exp $");
+RCSID("$Id: auth-pam.c,v 1.22 2001/01/22 05:34:40 mouring Exp $");

 #define NEW_AUTHTOK_MSG \
 	"Warning: Your password has expired, please change it now"
--- a/auth-passwd.c
+++ b/auth-passwd.c
@ -36,15 +36,14 @@
 */

 #include "includes.h"
-RCSID("$OpenBSD: auth-passwd.c,v 1.19 2001/01/18 16:59:59 markus Exp $");
+RCSID("$OpenBSD: auth-passwd.c,v 1.20 2001/01/21 19:05:42 markus Exp $");

 #if !defined(USE_PAM) && !defined(HAVE_OSF_SIA)

 #include "packet.h"
-#include "ssh.h"
-#include "servconf.h"
 #include "xmalloc.h"
-
+#include "log.h"
+#include "servconf.h"
 #include "auth.h"

 #ifdef WITH_AIXAUTHENTICATE
--- a/auth-rh-rsa.c
+++ b/auth-rh-rsa.c
@ -13,18 +13,19 @@
 */

 #include "includes.h"
-RCSID("$OpenBSD: auth-rh-rsa.c,v 1.19 2000/12/21 15:10:16 markus Exp $");
+RCSID("$OpenBSD: auth-rh-rsa.c,v 1.21 2001/01/21 19:05:42 markus Exp $");

 #include "packet.h"
-#include "ssh.h"
 #include "xmalloc.h"
 #include "uidswap.h"
+#include "log.h"
 #include "servconf.h"
-
-#include <openssl/rsa.h>
-#include <openssl/dsa.h>
 #include "key.h"
 #include "hostfile.h"
+#include "pathnames.h"
+#include "auth.h"
+#include "tildexpand.h"
+#include "canohost.h"

 /*
 * Tries to authenticate the user using the .rhosts file and the host using
@ -59,15 +60,15 @@ auth_rhosts_rsa(struct passwd *pw, const char *client_user, RSA *client_host_key
 	found = key_new(KEY_RSA1);

 	/* Check if we know the host and its host key. */
-	host_status = check_host_in_hostfile(SSH_SYSTEM_HOSTFILE, canonical_hostname,
+	host_status = check_host_in_hostfile(_PATH_SSH_SYSTEM_HOSTFILE, canonical_hostname,
 	    client_key, found, NULL);

 	/* Check user host file unless ignored. */
 	if (host_status != HOST_OK && !options.ignore_user_known_hosts) {
 		struct stat st;
-		char *user_hostfile = tilde_expand_filename(SSH_USER_HOSTFILE, pw->pw_uid);
+		char *user_hostfile = tilde_expand_filename(_PATH_SSH_USER_HOSTFILE, pw->pw_uid);
 		/*
-		 * Check file permissions of SSH_USER_HOSTFILE, auth_rsa()
+		 * Check file permissions of _PATH_SSH_USER_HOSTFILE, auth_rsa()
 		 * did already check pw->pw_dir, but there is a race XXX
 		 */
 		if (options.strict_modes &&
--- a/auth-rhosts.c
+++ b/auth-rhosts.c
@ -14,13 +14,15 @@
 */

 #include "includes.h"
-RCSID("$OpenBSD: auth-rhosts.c,v 1.17 2000/12/19 23:17:55 markus Exp $");
+RCSID("$OpenBSD: auth-rhosts.c,v 1.19 2001/01/21 19:05:42 markus Exp $");

 #include "packet.h"
-#include "ssh.h"
 #include "xmalloc.h"
 #include "uidswap.h"
+#include "pathnames.h"
+#include "log.h"
 #include "servconf.h"
+#include "canohost.h"

 /*
 * This function processes an rhosts-style file (.rhosts, .shosts, or
@ -177,8 +179,8 @@ auth_rhosts(struct passwd *pw, const char *client_user)

 	/* Deny if The user has no .shosts or .rhosts file and there are no system-wide files. */
 	if (!rhosts_files[rhosts_file_index] &&
-	    stat("/etc/hosts.equiv", &st) < 0 &&
-	    stat(SSH_HOSTS_EQUIV, &st) < 0)
+	    stat(_PATH_RHOSTS_EQUIV, &st) < 0 &&
+	    stat(_PATH_SSH_HOSTS_EQUIV, &st) < 0)
 		return 0;

 	hostname = get_canonical_hostname();
@ -192,10 +194,10 @@ auth_rhosts(struct passwd *pw, const char *client_user)
 					  hostname, ipaddr);
 			return 1;
 		}
-		if (check_rhosts_file(SSH_HOSTS_EQUIV, hostname, ipaddr, client_user,
+		if (check_rhosts_file(_PATH_SSH_HOSTS_EQUIV, hostname, ipaddr, client_user,
 				      pw->pw_name)) {
 			packet_send_debug("Accepted for %.100s [%.100s] by %.100s.",
-				      hostname, ipaddr, SSH_HOSTS_EQUIV);
+				      hostname, ipaddr, _PATH_SSH_HOSTS_EQUIV);
 			return 1;
 		}
 	}
--- a/auth-rsa.c
+++ b/auth-rsa.c
@ -14,21 +14,23 @@
 */

 #include "includes.h"
-RCSID("$OpenBSD: auth-rsa.c,v 1.34 2000/12/19 23:17:55 markus Exp $");
-
-#include "rsa.h"
-#include "packet.h"
-#include "xmalloc.h"
-#include "ssh.h"
-#include "mpaux.h"
-#include "uidswap.h"
-#include "match.h"
-#include "servconf.h"
-#include "auth-options.h"
+RCSID("$OpenBSD: auth-rsa.c,v 1.38 2001/01/21 19:05:42 markus Exp $");

 #include <openssl/rsa.h>
 #include <openssl/md5.h>

+#include "rsa.h"
+#include "packet.h"
+#include "xmalloc.h"
+#include "ssh1.h"
+#include "mpaux.h"
+#include "uidswap.h"
+#include "match.h"
+#include "auth-options.h"
+#include "pathnames.h"
+#include "log.h"
+#include "servconf.h"
+#include "auth.h"

 /* import */
 extern ServerOptions options;
@ -120,7 +122,7 @@ auth_rsa_challenge_dialog(RSA *pk)
 int
 auth_rsa(struct passwd *pw, BIGNUM *client_n)
 {
-	char line[8192], file[1024];
+	char line[8192], file[MAXPATHLEN];
 	int authenticated;
 	u_int bits;
 	FILE *f;
@ -137,7 +139,7 @@ auth_rsa(struct passwd *pw, BIGNUM *client_n)

 	/* The authorized keys. */
 	snprintf(file, sizeof file, "%.500s/%.100s", pw->pw_dir,
-		 SSH_USER_PERMITTED_KEYS);
+		 _PATH_SSH_USER_PERMITTED_KEYS);

 	/* Fail quietly if file does not exist */
 	if (stat(file, &st) < 0) {
@ -165,10 +167,10 @@ auth_rsa(struct passwd *pw, BIGNUM *client_n)
 				 "bad ownership or modes for '%s'.", pw->pw_name, file);
 			fail = 1;
 		} else {
-			/* Check path to SSH_USER_PERMITTED_KEYS */
+			/* Check path to _PATH_SSH_USER_PERMITTED_KEYS */
 			int i;
 			static const char *check[] = {
-				"", SSH_USER_DIR, NULL
+				"", _PATH_SSH_USER_DIR, NULL
 			};
 			for (i = 0; check[i]; i++) {
 				snprintf(line, sizeof line, "%.500s/%.100s", pw->pw_dir, check[i]);
@ -235,9 +237,9 @@ auth_rsa(struct passwd *pw, BIGNUM *client_n)
 		/* Parse the key from the line. */
 		if (!auth_rsa_read_key(&cp, &bits, pk->e, pk->n)) {
 			debug("%.100s, line %lu: bad key syntax",
-			      SSH_USER_PERMITTED_KEYS, linenum);
+			    file, linenum);
 			packet_send_debug("%.100s, line %lu: bad key syntax",
-					  SSH_USER_PERMITTED_KEYS, linenum);
+			    file, linenum);
 			continue;
 		}
 		/* cp now points to the comment part. */
@ -257,7 +259,7 @@ auth_rsa(struct passwd *pw, BIGNUM *client_n)
 		 * If our options do not allow this key to be used,
 		 * do not send challenge.
 		 */
-		if (!auth_parse_options(pw, options, linenum))
+		if (!auth_parse_options(pw, options, file, linenum))
 			continue;

 		/* Perform the challenge-response dialog for this key. */
--- a/auth.c
+++ b/auth.c
@ -23,13 +23,8 @@
 */

 #include "includes.h"
-RCSID("$OpenBSD: auth.c,v 1.13 2001/01/18 16:59:59 markus Exp $");
+RCSID("$OpenBSD: auth.c,v 1.14 2001/01/21 19:05:43 markus Exp $");

-#include "xmalloc.h"
-#include "ssh.h"
-#include "match.h"
-#include "servconf.h"
-#include "groupaccess.h"
 #ifdef HAVE_LOGIN_H
 #include <login.h>
 #endif
@ -37,8 +32,14 @@ RCSID("$OpenBSD: auth.c,v 1.13 2001/01/18 16:59:59 markus Exp $");
 #include <shadow.h>
 #endif /* defined(HAVE_SHADOW_H) && !defined(DISABLE_SHADOW) */

+#include "xmalloc.h"
+#include "match.h"
+#include "groupaccess.h"
+#include "log.h"
+#include "servconf.h"
 #include "auth.h"
 #include "auth-options.h"
+#include "canohost.h"

 /* import */
 extern ServerOptions options;
--- a/auth.h
+++ b/auth.h
@ -21,11 +21,13 @@
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
- * $OpenBSD: auth.h,v 1.9 2001/01/18 16:59:59 markus Exp $
+ * $OpenBSD: auth.h,v 1.10 2001/01/21 19:05:43 markus Exp $
 */
 #ifndef AUTH_H
 #define AUTH_H

+#include <openssl/rsa.h>
+
 typedef struct Authctxt Authctxt;
 struct Authctxt {
 	int success;
@ -39,6 +41,68 @@ struct Authctxt {
 	char *style;
 };

+/*
+ * Tries to authenticate the user using the .rhosts file.  Returns true if
+ * authentication succeeds.  If ignore_rhosts is non-zero, this will not
+ * consider .rhosts and .shosts (/etc/hosts.equiv will still be used).
+ */
+int     auth_rhosts(struct passwd * pw, const char *client_user);
+
+/*
+ * Tries to authenticate the user using the .rhosts file and the host using
+ * its host key.  Returns true if authentication succeeds.
+ */
+int
+auth_rhosts_rsa(struct passwd * pw, const char *client_user, RSA* client_host_key);
+
+/*
+ * Tries to authenticate the user using password.  Returns true if
+ * authentication succeeds.
+ */
+int     auth_password(struct passwd * pw, const char *password);
+
+/*
+ * Performs the RSA authentication dialog with the client.  This returns 0 if
+ * the client could not be authenticated, and 1 if authentication was
+ * successful.  This may exit if there is a serious protocol violation.
+ */
+int     auth_rsa(struct passwd * pw, BIGNUM * client_n);
+
+/*
+ * Parses an RSA key (number of bits, e, n) from a string.  Moves the pointer
+ * over the key.  Skips any whitespace at the beginning and at end.
+ */
+int     auth_rsa_read_key(char **cpp, u_int *bitsp, BIGNUM * e, BIGNUM * n);
+
+/*
+ * Performs the RSA authentication challenge-response dialog with the client,
+ * and returns true (non-zero) if the client gave the correct answer to our
+ * challenge; returns zero if the client gives a wrong answer.
+ */
+int     auth_rsa_challenge_dialog(RSA *pk);
+
+#ifdef KRB4
+#include <krb.h>
+/*
+ * Performs Kerberos v4 mutual authentication with the client. This returns 0
+ * if the client could not be authenticated, and 1 if authentication was
+ * successful.  This may exit if there is a serious protocol violation.
+ */
+int     auth_krb4(const char *server_user, KTEXT auth, char **client);
+int     krb4_init(uid_t uid);
+void    krb4_cleanup_proc(void *ignore);
+int	auth_krb4_password(struct passwd * pw, const char *password);
+
+#ifdef AFS
+#include <kafs.h>
+
+/* Accept passed Kerberos v4 ticket-granting ticket and AFS tokens. */
+int     auth_kerberos_tgt(struct passwd * pw, const char *string);
+int     auth_afs_token(struct passwd * pw, const char *token_string);
+#endif				/* AFS */
+
+#endif				/* KRB4 */
+
 #include "auth-pam.h"
 #include "auth2-pam.h"

--- a/auth1.c
+++ b/auth1.c
@ -10,7 +10,7 @@
 */

 #include "includes.h"
-RCSID("$OpenBSD: auth1.c,v 1.11 2001/01/18 16:59:59 markus Exp $");
+RCSID("$OpenBSD: auth1.c,v 1.13 2001/01/21 19:05:43 markus Exp $");

 #ifdef HAVE_OSF_SIA
 # include <sia.h>
@ -19,10 +19,11 @@ RCSID("$OpenBSD: auth1.c,v 1.11 2001/01/18 16:59:59 markus Exp $");

 #include "xmalloc.h"
 #include "rsa.h"
-#include "ssh.h"
+#include "ssh1.h"
 #include "packet.h"
 #include "buffer.h"
 #include "mpaux.h"
+#include "log.h"
 #include "servconf.h"
 #include "compat.h"
 #include "auth.h"
@ -278,11 +279,6 @@ do_authloop(Authctxt *authctxt)
 			xfree(password);
 			break;

-#ifdef SKEY			/* ISSUE: Is this right?  we don't define
-					having skey_authentication in
-					servconf.h by default so I assume
-					we need to deal with this via #ifdef
-					in some reasonable way */
 		case SSH_CMSG_AUTH_TIS:
 			debug("rcvd SSH_CMSG_AUTH_TIS");
 			if (options.skey_authentication == 1) {
@ -297,6 +293,7 @@ do_authloop(Authctxt *authctxt)
 				}
 			}
 			break;
+
 		case SSH_CMSG_AUTH_TIS_RESPONSE:
 			debug("rcvd SSH_CMSG_AUTH_TIS_RESPONSE");
 			if (options.skey_authentication == 1) {
@ -308,7 +305,6 @@ do_authloop(Authctxt *authctxt)
 				xfree(response);
 			}
 			break;
-#endif					/* ISSUE: End of wrong SKEY defines */

 		default:
 			/*
--- a/auth2-chall.c
+++ b/auth2-chall.c
@ -22,14 +22,14 @@
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 #include "includes.h"
-RCSID("$OpenBSD: auth2-chall.c,v 1.1 2001/01/18 17:12:43 markus Exp $");
+RCSID("$OpenBSD: auth2-chall.c,v 1.2 2001/01/21 19:05:43 markus Exp $");

-#include "ssh.h"
 #include "ssh2.h"
 #include "auth.h"
 #include "packet.h"
 #include "xmalloc.h"
 #include "dispatch.h"
+#include "log.h"

 void send_userauth_into_request(Authctxt *authctxt, char *challenge, int echo);
 void input_userauth_info_response(int type, int plen, void *ctxt);
--- a/auth2-pam.c
+++ b/auth2-pam.c
@ -1,14 +1,16 @@
 #include "includes.h"
-RCSID("$Id: auth2-pam.c,v 1.5 2001/01/19 05:37:32 mouring Exp $");
+RCSID("$Id: auth2-pam.c,v 1.6 2001/01/22 05:34:40 mouring Exp $");

 #ifdef USE_PAM
+#include <security/pam_appl.h>
+
 #include "ssh.h"
 #include "ssh2.h"
 #include "auth.h"
 #include "packet.h"
 #include "xmalloc.h"
 #include "dispatch.h"
-#include <security/pam_appl.h>
+#include "log.h"

 struct {
 	int finished, num_received, num_expected;
@ -31,7 +33,6 @@ int
 auth2_pam(Authctxt *authctxt)
 {
 	int retval = -1;
-	char *method = "PAM";

 	if (authctxt->user == NULL)
 		fatal("auth2_pam: internal error: no user");
--- a/auth2.c
+++ b/auth2.c
@ -23,34 +23,34 @@
 */

 #include "includes.h"
-RCSID("$OpenBSD: auth2.c,v 1.28 2001/01/18 17:00:00 markus Exp $");
+RCSID("$OpenBSD: auth2.c,v 1.32 2001/01/21 19:05:44 markus Exp $");

 #ifdef HAVE_OSF_SIA
 # include <sia.h>
 # include <siad.h>
 #endif

-#include <openssl/dsa.h>
-#include <openssl/rsa.h>
 #include <openssl/evp.h>

+#include "ssh2.h"
 #include "xmalloc.h"
 #include "rsa.h"
-#include "ssh.h"
 #include "pty.h"
 #include "packet.h"
 #include "buffer.h"
+#include "log.h"
 #include "servconf.h"
 #include "compat.h"
 #include "channels.h"
 #include "bufaux.h"
-#include "ssh2.h"
 #include "auth.h"
 #include "session.h"
 #include "dispatch.h"
 #include "auth.h"
+#include "cipher.h"
 #include "key.h"
 #include "kex.h"
+#include "pathnames.h"

 #include "uidswap.h"
 #include "auth-options.h"
@ -583,7 +583,7 @@ authmethod_lookup(const char *name)
 int
 user_key_allowed(struct passwd *pw, Key *key)
 {
-	char line[8192], file[1024];
+	char line[8192], file[MAXPATHLEN];
 	int found_key = 0;
 	FILE *f;
 	u_long linenum = 0;
@ -598,7 +598,7 @@ user_key_allowed(struct passwd *pw, Key *key)

 	/* The authorized keys. */
 	snprintf(file, sizeof file, "%.500s/%.100s", pw->pw_dir,
-	    SSH_USER_PERMITTED_KEYS2);
+	    _PATH_SSH_USER_PERMITTED_KEYS2);

 	/* Fail quietly if file does not exist */
 	if (stat(file, &st) < 0) {
@ -626,10 +626,10 @@ user_key_allowed(struct passwd *pw, Key *key)
 			    key_type(key), pw->pw_name, file);
 			fail = 1;
 		} else {
-			/* Check path to SSH_USER_PERMITTED_KEYS */
+			/* Check path to _PATH_SSH_USER_PERMITTED_KEYS */
 			int i;
 			static const char *check[] = {
-				"", SSH_USER_DIR, NULL
+				"", _PATH_SSH_USER_DIR, NULL
 			};
 			for (i = 0; check[i]; i++) {
 				snprintf(line, sizeof line, "%.500s/%.100s",
@ -686,7 +686,7 @@ user_key_allowed(struct passwd *pw, Key *key)
 			}
 		}
 		if (key_equal(found, key) &&
-		    auth_parse_options(pw, options, linenum) == 1) {
+		    auth_parse_options(pw, options, file, linenum) == 1) {
 			found_key = 1;
 			debug("matching key found: file %s, line %ld",
 			    file, linenum);
--- a/authfd.c
+++ b/authfd.c
@ -35,7 +35,9 @@
 */

 #include "includes.h"
-RCSID("$OpenBSD: authfd.c,v 1.32 2000/12/20 19:37:21 markus Exp $");
+RCSID("$OpenBSD: authfd.c,v 1.33 2001/01/21 19:05:44 markus Exp $");
+
+#include <openssl/evp.h>

 #include "ssh.h"
 #include "rsa.h"
@ -43,14 +45,14 @@ RCSID("$OpenBSD: authfd.c,v 1.32 2000/12/20 19:37:21 markus Exp $");
 #include "bufaux.h"
 #include "xmalloc.h"
 #include "getput.h"
-
-#include <openssl/rsa.h>
-#include <openssl/dsa.h>
-#include <openssl/evp.h>
 #include "key.h"
 #include "authfd.h"
+#include "cipher.h"
 #include "kex.h"
 #include "compat.h"
+#include "log.h"
+#include "atomicio.h"
+#include "authfd.h"

 /* helper */
 int	decode_reply(int type);
--- a/authfile.c
+++ b/authfile.c
@ -36,20 +36,19 @@
 */

 #include "includes.h"
-RCSID("$OpenBSD: authfile.c,v 1.24 2000/12/20 19:26:56 markus Exp $");
+RCSID("$OpenBSD: authfile.c,v 1.25 2001/01/21 19:05:44 markus Exp $");

-#include <openssl/bn.h>
-#include <openssl/dsa.h>
-#include <openssl/rsa.h>
 #include <openssl/err.h>
-#include <openssl/pem.h>
 #include <openssl/evp.h>
+#include <openssl/pem.h>

+#include "cipher.h"
 #include "xmalloc.h"
 #include "buffer.h"
 #include "bufaux.h"
-#include "ssh.h"
 #include "key.h"
+#include "ssh.h"
+#include "log.h"

 /* Version identification string for identity files. */
 #define AUTHFILE_ID_STRING "SSH PRIVATE KEY FILE FORMAT 1.1\n"
--- a/bufaux.c
+++ b/bufaux.c
@ -37,13 +37,13 @@
 */

 #include "includes.h"
-RCSID("$OpenBSD: bufaux.c,v 1.16 2001/01/16 23:58:08 deraadt Exp $");
+RCSID("$OpenBSD: bufaux.c,v 1.17 2001/01/21 19:05:45 markus Exp $");

-#include "ssh.h"
 #include <openssl/bn.h>
 #include "bufaux.h"
 #include "xmalloc.h"
 #include "getput.h"
+#include "log.h"

 /*
 * Stores an BIGNUM in the buffer with a 2-byte msb first bit count, followed
--- a/bufaux.h
+++ b/bufaux.h
@ -10,12 +10,13 @@
 * called by a name other than "ssh" or "Secure Shell".
 */

-/* RCSID("$OpenBSD: bufaux.h,v 1.10 2001/01/10 22:56:22 markus Exp $"); */
+/* RCSID("$OpenBSD: bufaux.h,v 1.11 2001/01/21 19:05:45 markus Exp $"); */

 #ifndef BUFAUX_H
 #define BUFAUX_H

 #include "buffer.h"
+#include <openssl/bn.h>

 /*
 * Stores an BIGNUM in the buffer with a 2-byte msb first bit count, followed
--- a/buffer.c
+++ b/buffer.c
@ -12,11 +12,11 @@
 */

 #include "includes.h"
-RCSID("$OpenBSD: buffer.c,v 1.9 2000/12/19 23:17:55 markus Exp $");
+RCSID("$OpenBSD: buffer.c,v 1.10 2001/01/21 19:05:45 markus Exp $");

 #include "xmalloc.h"
 #include "buffer.h"
-#include "ssh.h"
+#include "log.h"

 /* Initializes the buffer structure. */

--- a/canohost.c
+++ b/canohost.c
@ -12,11 +12,11 @@
 */

 #include "includes.h"
-RCSID("$OpenBSD: canohost.c,v 1.17 2000/12/19 23:17:55 markus Exp $");
+RCSID("$OpenBSD: canohost.c,v 1.18 2001/01/21 19:05:45 markus Exp $");

 #include "packet.h"
 #include "xmalloc.h"
-#include "ssh.h"
+#include "log.h"

 /*
 * Return the canonical name of the host at the other end of the socket. The
--- a/canohost.h
+++ b/canohost.h
@ -0,0 +1,36 @@
+/*
+ * Author: Tatu Ylonen <ylo@cs.hut.fi>
+ * 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".
+ */
+/*
+ * Returns the name of the machine at the other end of the socket.  The
+ * returned string should be freed by the caller.
+ */
+char   *get_remote_hostname(int socket);
+
+/*
+ * Return the canonical name of the host in the other side of the current
+ * connection (as returned by packet_get_connection).  The host name is
+ * cached, so it is efficient to call this several times.
+ */
+const char *get_canonical_hostname(void);
+
+/*
+ * Returns the remote IP address as an ascii string.  The value need not be
+ * freed by the caller.
+ */
+const char *get_remote_ipaddr(void);
+
+/* Returns the port number of the peer of the socket. */
+int     get_peer_port(int sock);
+
+/* Returns the port number of the remote/local host. */
+int     get_remote_port(void);
+int	get_local_port(void);
--- a/channels.c
+++ b/channels.c
@ -40,24 +40,24 @@
 */

 #include "includes.h"
-RCSID("$OpenBSD: channels.c,v 1.80 2001/01/08 22:03:23 markus Exp $");
+RCSID("$OpenBSD: channels.c,v 1.82 2001/01/21 19:05:46 markus Exp $");
+
+#include <openssl/rsa.h>
+#include <openssl/dsa.h>

 #include "ssh.h"
+#include "ssh1.h"
+#include "ssh2.h"
 #include "packet.h"
 #include "xmalloc.h"
 #include "buffer.h"
 #include "uidswap.h"
-#include "readconf.h"
-#include "servconf.h"
-
+#include "log.h"
+#include "misc.h"
 #include "channels.h"
 #include "nchan.h"
 #include "compat.h"
-
-#include "ssh2.h"
-
-#include <openssl/rsa.h>
-#include <openssl/dsa.h>
+#include "canohost.h"
 #include "key.h"
 #include "authfd.h"

@ -130,6 +130,9 @@ static int all_opens_permitted = 0;
 /* This is set to true if both sides support SSH_PROTOFLAG_HOST_IN_FWD_OPEN. */
 static int have_hostname_in_open = 0;

+/* AF_UNSPEC or AF_INET or AF_INET6 */
+extern int IPv4or6;
+
 /* Sets specific protocol options. */

 void
--- a/cipher.c
+++ b/cipher.c
@ -35,10 +35,11 @@
 */

 #include "includes.h"
-RCSID("$OpenBSD: cipher.c,v 1.41 2000/12/19 23:17:56 markus Exp $");
+RCSID("$OpenBSD: cipher.c,v 1.42 2001/01/21 19:05:46 markus Exp $");

-#include "ssh.h"
 #include "xmalloc.h"
+#include "log.h"
+#include "cipher.h"

 #include <openssl/md5.h>

--- a/cli.c
+++ b/cli.c
@ -1,8 +1,8 @@
 #include "includes.h"
-RCSID("$OpenBSD: cli.c,v 1.5 2001/01/08 08:50:29 markus Exp $");
+RCSID("$OpenBSD: cli.c,v 1.6 2001/01/21 19:05:47 markus Exp $");

 #include "xmalloc.h"
-#include "ssh.h"
+#include "log.h"

 static int cli_input = -1;
 static int cli_output = -1;
--- a/clientloop.c
+++ b/clientloop.c
@ -59,27 +59,25 @@
 */

 #include "includes.h"
-RCSID("$OpenBSD: clientloop.c,v 1.43 2001/01/13 19:14:08 markus Exp $");
+RCSID("$OpenBSD: clientloop.c,v 1.45 2001/01/21 19:05:47 markus Exp $");

-#include "xmalloc.h"
 #include "ssh.h"
+#include "ssh1.h"
+#include "ssh2.h"
+#include "xmalloc.h"
 #include "packet.h"
 #include "buffer.h"
-#include "readconf.h"
-
-#include "ssh2.h"
 #include "compat.h"
 #include "channels.h"
 #include "dispatch.h"
-
 #include "buffer.h"
 #include "bufaux.h"
-
-#include <openssl/dsa.h>
-#include <openssl/rsa.h>
 #include "key.h"
-#include "authfd.h"
+#include "log.h"
+#include "readconf.h"
 #include "clientloop.h"
+#include "authfd.h"
+#include "atomicio.h"

 /* import options */
 extern Options options;
--- a/clientloop.h
+++ b/clientloop.h
@ -1,3 +1,14 @@
+/*
+ * Author: Tatu Ylonen <ylo@cs.hut.fi>
+ * 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 Markus Friedl.  All rights reserved.
 *
@ -21,4 +32,8 @@
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
+
 void	clientloop_set_session_ident(int id);
+
+/* Client side main loop for the interactive session. */
+int     client_loop(int have_pty, int escape_char, int id);
--- a/compat.c
+++ b/compat.c
@ -25,10 +25,6 @@
 #include "includes.h"
 RCSID("$OpenBSD: compat.c,v 1.33 2001/01/08 22:29:05 markus Exp $");

-#include "ssh.h"
-#include "packet.h"
-#include "xmalloc.h"
-#include "compat.h"
 #ifdef HAVE_LIBPCRE
 #  include <pcreposix.h>
 #else /* Use native regex libraries */
@ -43,6 +39,11 @@ RCSID("$OpenBSD: compat.c,v 1.33 2001/01/08 22:29:05 markus Exp $");
 #  endif
 #endif /* HAVE_LIBPCRE */

+#include "packet.h"
+#include "xmalloc.h"
+#include "compat.h"
+#include "log.h"
+
 int compat13 = 0;
 int compat20 = 0;
 int datafellows = 0;
--- a/compress.c
+++ b/compress.c
@ -12,9 +12,9 @@
 */

 #include "includes.h"
-RCSID("$OpenBSD: compress.c,v 1.11 2000/12/20 19:37:21 markus Exp $");
+RCSID("$OpenBSD: compress.c,v 1.12 2001/01/21 19:05:48 markus Exp $");

-#include "ssh.h"
+#include "log.h"
 #include "buffer.h"
 #include "zlib.h"

--- a/configure.in
+++ b/configure.in
@ -1382,7 +1382,7 @@ if test ! -d $piddir ; then
 	esac
 fi

-AC_DEFINE_UNQUOTED(PIDDIR, "$piddir")
+AC_DEFINE_UNQUOTED(_PATH_SSH_PIDDIR, "$piddir")
 AC_SUBST(piddir)

 dnl allow user to disable some login recording features
--- a/deattack.c
+++ b/deattack.c
@ -1,4 +1,4 @@
-/*	$OpenBSD: deattack.c,v 1.11 2000/12/19 23:17:56 markus Exp $	*/
+/*	$OpenBSD: deattack.c,v 1.12 2001/01/21 19:05:48 markus Exp $	*/

 /*
 * Cryptographic attack detector for ssh - source code
@ -21,7 +21,7 @@

 #include "includes.h"
 #include "deattack.h"
-#include "ssh.h"
+#include "log.h"
 #include "crc32.h"
 #include "getput.h"
 #include "xmalloc.h"
--- a/dh.c
+++ b/dh.c
@ -23,7 +23,7 @@
 */

 #include "includes.h"
-RCSID("$OpenBSD: dh.c,v 1.4 2001/01/15 21:43:51 markus Exp $");
+RCSID("$OpenBSD: dh.c,v 1.6 2001/01/21 19:05:49 markus Exp $");

 #include "xmalloc.h"

@ -31,10 +31,13 @@ RCSID("$OpenBSD: dh.c,v 1.4 2001/01/15 21:43:51 markus Exp $");
 #include <openssl/dh.h>
 #include <openssl/evp.h>

-#include "ssh.h"
 #include "buffer.h"
+#include "cipher.h"
 #include "kex.h"
 #include "dh.h"
+#include "pathnames.h"
+#include "log.h"
+#include "misc.h"

 int
 parse_prime(int linenum, char *line, struct dhgroup *dhg)
@ -100,9 +103,9 @@ choose_dh(int minbits)
 	int linenum;
 	struct dhgroup dhg;

-	f = fopen(DH_PRIMES, "r");
+	f = fopen(_PATH_DH_PRIMES, "r");
 	if (!f) {
-		log("WARNING: %s does not exist, using old prime", DH_PRIMES);
+		log("WARNING: %s does not exist, using old prime", _PATH_DH_PRIMES);
 		return (dh_new_group1());
 	}

@ -126,13 +129,13 @@ choose_dh(int minbits)
 	fclose (f);

 	if (bestcount == 0) {
-		log("WARNING: no primes in %s, using old prime", DH_PRIMES);
+		log("WARNING: no primes in %s, using old prime", _PATH_DH_PRIMES);
 		return (dh_new_group1());
 	}

-	f = fopen(DH_PRIMES, "r");
+	f = fopen(_PATH_DH_PRIMES, "r");
 	if (!f) {
-		fatal("WARNING: %s dissappeared, giving up", DH_PRIMES);
+		fatal("WARNING: %s dissappeared, giving up", _PATH_DH_PRIMES);
 	}

 	linenum = 0;
--- a/dispatch.c
+++ b/dispatch.c
@ -22,8 +22,10 @@
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 #include "includes.h"
-RCSID("$OpenBSD: dispatch.c,v 1.5 2000/09/21 11:25:34 markus Exp $");
-#include "ssh.h"
+RCSID("$OpenBSD: dispatch.c,v 1.7 2001/01/21 19:05:49 markus Exp $");
+
+#include "ssh1.h"
+#include "log.h"
 #include "dispatch.h"
 #include "packet.h"

--- a/entropy.c
+++ b/entropy.c
@ -24,9 +24,6 @@

 #include "includes.h"

-#include "ssh.h"
-#include "xmalloc.h"
-
 #include <openssl/rand.h>
 #include <openssl/sha.h>

@ -35,7 +32,12 @@
 # include <floatingpoint.h>
 #endif /* HAVE_FLOATINGPOINT_H */

-RCSID("$Id: entropy.c,v 1.23 2001/01/16 22:37:15 djm Exp $");
+#include "ssh.h"
+#include "xmalloc.h"
+#include "atomicio.h"
+#include "log.h"
+
+RCSID("$Id: entropy.c,v 1.24 2001/01/22 05:34:41 mouring Exp $");

 #ifndef offsetof
 # define offsetof(type, member) ((size_t) &((type *)0)->member)
--- a/groupaccess.c
+++ b/groupaccess.c
@ -25,9 +25,9 @@
 #include "includes.h"

 #include "groupaccess.h"
-#include "ssh.h"
 #include "xmalloc.h"
 #include "match.h"
+#include "log.h"

 static int ngroups;
 static char *groups_byname[NGROUPS_MAX + 1];	/* +1 for base/primary group */
--- a/hmac.c
+++ b/hmac.c
@ -23,11 +23,11 @@
 */

 #include "includes.h"
-RCSID("$OpenBSD: hmac.c,v 1.5 2000/12/19 23:17:56 markus Exp $");
+RCSID("$OpenBSD: hmac.c,v 1.6 2001/01/21 19:05:49 markus Exp $");

 #include "xmalloc.h"
-#include "ssh.h"
 #include "getput.h"
+#include "log.h"

 #include <openssl/hmac.h>

--- a/hostfile.c
+++ b/hostfile.c
@ -36,15 +36,13 @@
 */

 #include "includes.h"
-RCSID("$OpenBSD: hostfile.c,v 1.23 2000/12/21 15:10:16 markus Exp $");
+RCSID("$OpenBSD: hostfile.c,v 1.24 2001/01/21 19:05:49 markus Exp $");

 #include "packet.h"
 #include "match.h"
-#include "ssh.h"
-#include <openssl/rsa.h>
-#include <openssl/dsa.h>
 #include "key.h"
 #include "hostfile.h"
+#include "log.h"

 /*
 * Parses an RSA (number of bits, e, n) or DSA key from a string.  Moves the
--- a/kex.c
+++ b/kex.c
@ -23,18 +23,7 @@
 */

 #include "includes.h"
-RCSID("$OpenBSD: kex.c,v 1.17 2001/01/08 21:48:17 markus Exp $");
-
-#include "ssh.h"
-#include "ssh2.h"
-#include "xmalloc.h"
-#include "buffer.h"
-#include "bufaux.h"
-#include "packet.h"
-#include "compat.h"
-
-#include <openssl/bn.h>
-#include <openssl/dh.h>
+RCSID("$OpenBSD: kex.c,v 1.18 2001/01/21 19:05:49 markus Exp $");

 #include <openssl/crypto.h>
 #include <openssl/bio.h>
@ -42,8 +31,16 @@ RCSID("$OpenBSD: kex.c,v 1.17 2001/01/08 21:48:17 markus Exp $");
 #include <openssl/dh.h>
 #include <openssl/pem.h>

+#include "ssh2.h"
+#include "xmalloc.h"
+#include "buffer.h"
+#include "bufaux.h"
+#include "packet.h"
+#include "compat.h"
+#include "cipher.h"
 #include "kex.h"
 #include "key.h"
+#include "log.h"

 #define KEX_COOKIE_LEN	16

--- a/key.c
+++ b/key.c
@ -31,12 +31,11 @@
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
-
 #include "includes.h"
-#include "ssh.h"
-#include <openssl/rsa.h>
-#include <openssl/dsa.h>
+RCSID("$OpenBSD: key.c,v 1.15 2001/01/21 19:05:50 markus Exp $");
+
 #include <openssl/evp.h>
+
 #include "xmalloc.h"
 #include "key.h"
 #include "rsa.h"
@ -45,8 +44,7 @@
 #include "uuencode.h"
 #include "buffer.h"
 #include "bufaux.h"
-
-RCSID("$OpenBSD: key.c,v 1.14 2001/01/16 19:20:06 markus Exp $");
+#include "log.h"

 Key *
 key_new(int type)
--- a/key.h
+++ b/key.h
@ -24,6 +24,9 @@
 #ifndef KEY_H
 #define KEY_H

+#include <openssl/rsa.h>
+#include <openssl/dsa.h>
+
 typedef struct Key Key;
 enum types {
 	KEY_RSA1,
--- a/log-client.c
+++ b/log-client.c
@ -36,10 +36,10 @@
 */

 #include "includes.h"
-RCSID("$OpenBSD: log-client.c,v 1.14 2001/01/18 16:20:21 markus Exp $");
+RCSID("$OpenBSD: log-client.c,v 1.15 2001/01/21 19:05:50 markus Exp $");

 #include "xmalloc.h"
-#include "ssh.h"
+#include "log.h"

 static LogLevel log_level = SYSLOG_LEVEL_INFO;

--- a/log-server.c
+++ b/log-server.c
@ -36,12 +36,12 @@
 */

 #include "includes.h"
-RCSID("$OpenBSD: log-server.c,v 1.19 2001/01/18 16:20:21 markus Exp $");
+RCSID("$OpenBSD: log-server.c,v 1.20 2001/01/21 19:05:50 markus Exp $");

 #include <syslog.h>
 #include "packet.h"
 #include "xmalloc.h"
-#include "ssh.h"
+#include "log.h"

 static LogLevel log_level = SYSLOG_LEVEL_INFO;
 static int log_on_stderr = 0;
--- a/log.c
+++ b/log.c
@ -36,9 +36,9 @@
 */

 #include "includes.h"
-RCSID("$OpenBSD: log.c,v 1.14 2001/01/18 16:20:21 markus Exp $");
+RCSID("$OpenBSD: log.c,v 1.15 2001/01/21 19:05:51 markus Exp $");

-#include "ssh.h"
+#include "log.h"
 #include "xmalloc.h"

 /* Fatal messages.  This function never returns. */
--- a/log.h
+++ b/log.h
@ -0,0 +1,76 @@
+/*
+ * Author: Tatu Ylonen <ylo@cs.hut.fi>
+ * 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".
+ */
+
+#ifndef SSH_LOG_H
+#define SSH_LOG_H
+
+/* Supported syslog facilities and levels. */
+typedef enum {
+	SYSLOG_FACILITY_DAEMON,
+	SYSLOG_FACILITY_USER,
+	SYSLOG_FACILITY_AUTH,
+#ifdef LOG_AUTHPRIV
+        SYSLOG_FACILITY_AUTHPRIV,
+#endif
+	SYSLOG_FACILITY_LOCAL0,
+	SYSLOG_FACILITY_LOCAL1,
+	SYSLOG_FACILITY_LOCAL2,
+	SYSLOG_FACILITY_LOCAL3,
+	SYSLOG_FACILITY_LOCAL4,
+	SYSLOG_FACILITY_LOCAL5,
+	SYSLOG_FACILITY_LOCAL6,
+	SYSLOG_FACILITY_LOCAL7
+}       SyslogFacility;
+
+typedef enum {
+	SYSLOG_LEVEL_QUIET,
+	SYSLOG_LEVEL_FATAL,
+	SYSLOG_LEVEL_ERROR,
+	SYSLOG_LEVEL_INFO,
+	SYSLOG_LEVEL_VERBOSE,
+	SYSLOG_LEVEL_DEBUG1,
+	SYSLOG_LEVEL_DEBUG2,
+	SYSLOG_LEVEL_DEBUG3
+}       LogLevel;
+/* Initializes logging. */
+void    log_init(char *av0, LogLevel level, SyslogFacility facility, int on_stderr);
+
+/* Logging implementation, depending on server or client */
+void    do_log(LogLevel level, const char *fmt, va_list args);
+
+/* name to facility/level */
+SyslogFacility log_facility_number(char *name);
+LogLevel log_level_number(char *name);
+
+/* Output a message to syslog or stderr */
+void    fatal(const char *fmt,...) __attribute__((format(printf, 1, 2)));
+void    error(const char *fmt,...) __attribute__((format(printf, 1, 2)));
+void    log(const char *fmt,...) __attribute__((format(printf, 1, 2)));
+void    verbose(const char *fmt,...) __attribute__((format(printf, 1, 2)));
+void    debug(const char *fmt,...) __attribute__((format(printf, 1, 2)));
+void    debug2(const char *fmt,...) __attribute__((format(printf, 1, 2)));
+void    debug3(const char *fmt,...) __attribute__((format(printf, 1, 2)));
+
+/* same as fatal() but w/o logging */
+void    fatal_cleanup(void);
+
+/*
+ * Registers a cleanup function to be called by fatal()/fatal_cleanup()
+ * before exiting. It is permissible to call fatal_remove_cleanup for the
+ * function itself from the function.
+ */
+void    fatal_add_cleanup(void (*proc) (void *context), void *context);
+
+/* Removes a cleanup function to be called at fatal(). */
+void    fatal_remove_cleanup(void (*proc) (void *context), void *context);
+
+#endif
--- a/login.c
+++ b/login.c
@ -39,7 +39,7 @@
 */

 #include "includes.h"
-RCSID("$OpenBSD: login.c,v 1.16 2000/12/19 23:17:57 markus Exp $");
+RCSID("$OpenBSD: login.c,v 1.17 2001/01/21 19:05:51 markus Exp $");

 #include "loginrec.h"

--- a/login.h
+++ b/login.h
@ -0,0 +1,38 @@
+/*
+ * Author: Tatu Ylonen <ylo@cs.hut.fi>
+ * 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".
+ */
+#ifndef LOGIN_H
+#define LOGIN_H
+
+/*
+ * Returns the time when the user last logged in.  Returns 0 if the
+ * information is not available.  This must be called before record_login.
+ * The host from which the user logged in is stored in buf.
+ */
+u_long
+get_last_login_time(uid_t uid, const char *logname,
+    char *buf, u_int bufsize);
+
+/*
+ * Records that the user has logged in.  This does many things normally done
+ * by login(1).
+ */
+void
+record_login(pid_t pid, const char *ttyname, const char *user, uid_t uid,
+    const char *host, struct sockaddr *addr);
+
+/*
+ * Records that the user has logged out.  This does many thigs normally done
+ * by login(1) or init.
+ */
+void    record_logout(pid_t pid, const char *ttyname);
+
+#endif
--- a/loginrec.c
+++ b/loginrec.c
@ -160,8 +160,10 @@
 #include "ssh.h"
 #include "xmalloc.h"
 #include "loginrec.h"
+#include "log.h"
+#include "atomicio.h"

-RCSID("$Id: loginrec.c,v 1.29 2000/12/28 00:07:07 mouring Exp $");
+RCSID("$Id: loginrec.c,v 1.30 2001/01/22 05:34:42 mouring Exp $");

 #ifdef HAVE_UTIL_H
 #  include <util.h>
--- a/match.c
+++ b/match.c
@ -12,9 +12,9 @@
 */

 #include "includes.h"
-RCSID("$OpenBSD: match.c,v 1.10 2000/12/19 23:17:57 markus Exp $");
+RCSID("$OpenBSD: match.c,v 1.11 2001/01/21 19:05:52 markus Exp $");

-#include "ssh.h"
+#include "match.h"

 /*
 * Returns true if the given string matches the pattern (which may contain ?
--- a/misc.c
+++ b/misc.c
@ -28,6 +28,7 @@
 RCSID("$OpenBSD: util.c,v 1.6 2000/10/27 07:32:19 markus Exp $");

 #include "ssh.h"
+#include "log.h"

 char *
 chop(char *s)
--- a/misc.h
+++ b/misc.h
@ -0,0 +1,19 @@
+/*
+ * Author: Tatu Ylonen <ylo@cs.hut.fi>
+ * 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".
+ */
+/* remove newline at end of string */
+char	*chop(char *s);
+
+/* return next token in configuration line */
+char	*strdelim(char **s);
+
+/* set filedescriptor to non-blocking */
+void	set_nonblock(int fd);
--- a/nchan.c
+++ b/nchan.c
@ -23,17 +23,16 @@
 */

 #include "includes.h"
-RCSID("$OpenBSD: nchan.c,v 1.20 2000/11/06 23:04:56 markus Exp $");
-
-#include "ssh.h"
+RCSID("$OpenBSD: nchan.c,v 1.22 2001/01/21 19:05:52 markus Exp $");

+#include "ssh1.h"
+#include "ssh2.h"
 #include "buffer.h"
 #include "packet.h"
 #include "channels.h"
 #include "nchan.h"
-
-#include "ssh2.h"
 #include "compat.h"
+#include "log.h"

 /* functions manipulating channel states */
 /*
--- a/packet.c
+++ b/packet.c
@ -37,13 +37,12 @@
 */

 #include "includes.h"
-RCSID("$OpenBSD: packet.c,v 1.44 2001/01/13 18:36:45 markus Exp $");
+RCSID("$OpenBSD: packet.c,v 1.46 2001/01/21 19:05:53 markus Exp $");

 #include "xmalloc.h"
 #include "buffer.h"
 #include "packet.h"
 #include "bufaux.h"
-#include "ssh.h"
 #include "crc32.h"
 #include "getput.h"

@ -52,6 +51,7 @@ RCSID("$OpenBSD: packet.c,v 1.44 2001/01/13 18:36:45 markus Exp $");
 #include "channels.h"

 #include "compat.h"
+#include "ssh1.h"
 #include "ssh2.h"

 #include <openssl/bn.h>
@ -61,6 +61,8 @@ RCSID("$OpenBSD: packet.c,v 1.44 2001/01/13 18:36:45 markus Exp $");
 #include "cipher.h"
 #include "kex.h"
 #include "hmac.h"
+#include "log.h"
+#include "canohost.h"

 #ifdef PACKET_DEBUG
 #define DBG(x) x
--- a/pathnames.h
+++ b/pathnames.h
@ -0,0 +1,136 @@
+/*
+ * Author: Tatu Ylonen <ylo@cs.hut.fi>
+ * 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".
+ */
+
+#ifndef ETCDIR
+#define ETCDIR				"/etc"
+#endif
+
+#ifndef _PATH_SSH_PIDDIR
+#define _PATH_SSH_PIDDIR		"/var/run"
+#endif
+
+/*
+ * System-wide file containing host keys of known hosts.  This file should be
+ * world-readable.
+ */
+#define _PATH_SSH_SYSTEM_HOSTFILE	ETCDIR "/ssh_known_hosts"
+#define _PATH_SSH_SYSTEM_HOSTFILE2	ETCDIR "/ssh_known_hosts2"
+
+/*
+ * Of these, ssh_host_key must be readable only by root, whereas ssh_config
+ * should be world-readable.
+ */
+#define _PATH_HOST_KEY_FILE		ETCDIR "/ssh_host_key"
+#define _PATH_SERVER_CONFIG_FILE	ETCDIR "/sshd_config"
+#define _PATH_HOST_CONFIG_FILE		ETCDIR "/ssh_config"
+#define _PATH_HOST_DSA_KEY_FILE		ETCDIR "/ssh_host_dsa_key"
+#define _PATH_DH_PRIMES			ETCDIR "/primes"
+
+#define _PATH_SSH_PROGRAM		"/usr/bin/ssh"
+
+/*
+ * The process id of the daemon listening for connections is saved here to
+ * make it easier to kill the correct daemon when necessary.
+ */
+#define _PATH_SSH_DAEMON_PID_FILE	_PATH_SSH_PIDDIR "/sshd.pid"
+
+/*
+ * The directory in user\'s home directory in which the files reside. The
+ * directory should be world-readable (though not all files are).
+ */
+#define _PATH_SSH_USER_DIR		".ssh"
+
+/*
+ * Per-user file containing host keys of known hosts.  This file need not be
+ * readable by anyone except the user him/herself, though this does not
+ * contain anything particularly secret.
+ */
+#define _PATH_SSH_USER_HOSTFILE		"~/.ssh/known_hosts"
+#define _PATH_SSH_USER_HOSTFILE2	"~/.ssh/known_hosts2"
+
+/*
+ * Name of the default file containing client-side authentication key. This
+ * file should only be readable by the user him/herself.
+ */
+#define _PATH_SSH_CLIENT_IDENTITY	".ssh/identity"
+#define _PATH_SSH_CLIENT_ID_DSA		".ssh/id_dsa"
+#define _PATH_SSH_CLIENT_ID_RSA		".ssh/id_rsa"
+
+/*
+ * Configuration file in user\'s home directory.  This file need not be
+ * readable by anyone but the user him/herself, but does not contain anything
+ * particularly secret.  If the user\'s home directory resides on an NFS
+ * volume where root is mapped to nobody, this may need to be world-readable.
+ */
+#define _PATH_SSH_USER_CONFFILE		".ssh/config"
+
+/*
+ * File containing a list of those rsa keys that permit logging in as this
+ * user.  This file need not be readable by anyone but the user him/herself,
+ * but does not contain anything particularly secret.  If the user\'s home
+ * directory resides on an NFS volume where root is mapped to nobody, this
+ * may need to be world-readable.  (This file is read by the daemon which is
+ * running as root.)
+ */
+#define _PATH_SSH_USER_PERMITTED_KEYS	".ssh/authorized_keys"
+#define _PATH_SSH_USER_PERMITTED_KEYS2	".ssh/authorized_keys2"
+
+/*
+ * Per-user and system-wide ssh "rc" files.  These files are executed with
+ * /bin/sh before starting the shell or command if they exist.  They will be
+ * passed "proto cookie" as arguments if X11 forwarding with spoofing is in
+ * use.  xauth will be run if neither of these exists.
+ */
+#define _PATH_SSH_USER_RC		".ssh/rc"
+#define _PATH_SSH_SYSTEM_RC		ETCDIR "/sshrc"
+
+/*
+ * Ssh-only version of /etc/hosts.equiv.  Additionally, the daemon may use
+ * ~/.rhosts and /etc/hosts.equiv if rhosts authentication is enabled.
+ */
+#define _PATH_SSH_HOSTS_EQUIV		ETCDIR "/shosts.equiv"
+#define _PATH_RHOSTS_EQUIV		"/etc/hosts.equiv"
+
+/*
+ * Default location of askpass
+ */
+#define _PATH_SSH_ASKPASS_DEFAULT	"/usr/X11R6/bin/ssh-askpass"
+
+/* for scp */
+#ifndef _PATH_CP
+#define _PATH_CP			"cp"
+#endif
+
+/* path to login program */
+#ifndef LOGIN_PROGRAM
+# ifdef LOGIN_PROGRAM_FALLBACK
+#  define LOGIN_PROGRAM         LOGIN_PROGRAM_FALLBACK
+# else
+#  define LOGIN_PROGRAM         "/usr/bin/login"
+# endif
+#endif /* LOGIN_PROGRAM */
+
+/* Askpass program define */
+#ifndef ASKPASS_PROGRAM
+#define ASKPASS_PROGRAM         "/usr/lib/ssh/ssh-askpass"
+#endif /* ASKPASS_PROGRAM */
+
+/*
+ * Relevant only when using builtin PRNG.
+ */
+#ifndef SSH_PRNG_SEED_FILE
+# define SSH_PRNG_SEED_FILE      SSH_USER_DIR"/prng_seed"
+#endif /* SSH_PRNG_SEED_FILE */
+#ifndef SSH_PRNG_COMMAND_FILE
+# define SSH_PRNG_COMMAND_FILE   ETCDIR "/ssh_prng_cmds"
+#endif /* SSH_PRNG_COMMAND_FILE */
+
--- a/pty.c
+++ b/pty.c
@ -12,14 +12,14 @@
 */

 #include "includes.h"
-RCSID("$OpenBSD: pty.c,v 1.19 2000/12/20 20:00:34 markus Exp $");
+RCSID("$OpenBSD: pty.c,v 1.20 2001/01/21 19:05:53 markus Exp $");

 #ifdef HAVE_UTIL_H
 # include <util.h>
 #endif /* HAVE_UTIL_H */

 #include "pty.h"
-#include "ssh.h"
+#include "log.h"

 /* Pty allocated with _getpty gets broken if we do I_PUSH:es to it. */
 #if defined(HAVE__GETPTY) || defined(HAVE_OPENPTY)
--- a/radix.h
+++ b/radix.h
@ -0,0 +1,26 @@
+/*
+ * Copyright (c) 1999 Dug Song.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+int     creds_to_radix(CREDENTIALS * creds, u_char *buf, size_t buflen);
+int     radix_to_creds(const char *buf, CREDENTIALS * creds);
--- a/readconf.c
+++ b/readconf.c
@ -12,13 +12,17 @@
 */

 #include "includes.h"
-RCSID("$OpenBSD: readconf.c,v 1.54 2001/01/18 16:20:22 markus Exp $");
+RCSID("$OpenBSD: readconf.c,v 1.58 2001/01/21 19:05:53 markus Exp $");

 #include "ssh.h"
-#include "readconf.h"
-#include "match.h"
 #include "xmalloc.h"
 #include "compat.h"
+#include "cipher.h"
+#include "pathnames.h"
+#include "log.h"
+#include "readconf.h"
+#include "match.h"
+#include "misc.h"

 /* Format of the configuration file:

@ -247,7 +251,7 @@ process_config_line(Options *options, const char *host,
 	/* Ignore leading whitespace. */
 	if (*keyword == '\0')
 		keyword = strdelim(&s);
-	if (!*keyword || *keyword == '\n' || *keyword == '#')
+	if (keyword == NULL || !*keyword || *keyword == '\n' || *keyword == '#')
 		return 0;

 	opcode = parse_token(keyword, filename, linenum);
@ -599,8 +603,7 @@ parse_int:
 	}

 	/* Check that there is no garbage at end of line. */
-	if ((arg = strdelim(&s)) != NULL && *arg != '\0')
-	{
+	if ((arg = strdelim(&s)) != NULL && *arg != '\0') {
 		fatal("%.200s line %d: garbage at end of line; \"%.200s\".",
 		      filename, linenum, arg);
 	}
@ -782,27 +785,27 @@ fill_default_options(Options * options)
 	if (options->num_identity_files == 0) {
 		if (options->protocol & SSH_PROTO_1) {
 			options->identity_files[options->num_identity_files] =
-			    xmalloc(2 + strlen(SSH_CLIENT_IDENTITY) + 1);
+			    xmalloc(2 + strlen(_PATH_SSH_CLIENT_IDENTITY) + 1);
 			sprintf(options->identity_files[options->num_identity_files++],
-			    "~/%.100s", SSH_CLIENT_IDENTITY);
+			    "~/%.100s", _PATH_SSH_CLIENT_IDENTITY);
 		}
 		if (options->protocol & SSH_PROTO_2) {
 			options->identity_files[options->num_identity_files] =
-			    xmalloc(2 + strlen(SSH_CLIENT_ID_DSA) + 1);
+			    xmalloc(2 + strlen(_PATH_SSH_CLIENT_ID_DSA) + 1);
 			sprintf(options->identity_files[options->num_identity_files++],
-			    "~/%.100s", SSH_CLIENT_ID_DSA);
+			    "~/%.100s", _PATH_SSH_CLIENT_ID_DSA);
 		}
 	}
 	if (options->escape_char == -1)
 		options->escape_char = '~';
 	if (options->system_hostfile == NULL)
-		options->system_hostfile = SSH_SYSTEM_HOSTFILE;
+		options->system_hostfile = _PATH_SSH_SYSTEM_HOSTFILE;
 	if (options->user_hostfile == NULL)
-		options->user_hostfile = SSH_USER_HOSTFILE;
+		options->user_hostfile = _PATH_SSH_USER_HOSTFILE;
 	if (options->system_hostfile2 == NULL)
-		options->system_hostfile2 = SSH_SYSTEM_HOSTFILE2;
+		options->system_hostfile2 = _PATH_SSH_SYSTEM_HOSTFILE2;
 	if (options->user_hostfile2 == NULL)
-		options->user_hostfile2 = SSH_USER_HOSTFILE2;
+		options->user_hostfile2 = _PATH_SSH_USER_HOSTFILE2;
 	if (options->log_level == (LogLevel) - 1)
 		options->log_level = SYSLOG_LEVEL_INFO;
 	/* options->proxy_command should not be set by default */
--- a/readpass.c
+++ b/readpass.c
@ -32,10 +32,9 @@
 */

 #include "includes.h"
-RCSID("$OpenBSD: readpass.c,v 1.12 2000/10/11 20:14:39 markus Exp $");
+RCSID("$OpenBSD: readpass.c,v 1.13 2001/01/21 19:05:54 markus Exp $");

 #include "xmalloc.h"
-#include "ssh.h"
 #include "cli.h"

 /*
--- a/readpass.h
+++ b/readpass.h
@ -0,0 +1,18 @@
+/*
+ * Author: Tatu Ylonen <ylo@cs.hut.fi>
+ * 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".
+ */
+
+/*
+ * Reads a passphrase from /dev/tty with echo turned off.  Returns the
+ * passphrase (allocated with xmalloc).  Exits if EOF is encountered. If
+ * from_stdin is true, the passphrase will be read from stdin instead.
+ */
+char   *read_passphrase(char *prompt, int from_stdin);
--- a/rsa.c
+++ b/rsa.c
@ -60,10 +60,10 @@
 */

 #include "includes.h"
-RCSID("$OpenBSD: rsa.c,v 1.18 2000/12/19 23:17:57 markus Exp $");
+RCSID("$OpenBSD: rsa.c,v 1.19 2001/01/21 19:05:54 markus Exp $");

 #include "rsa.h"
-#include "ssh.h"
+#include "log.h"
 #include "xmalloc.h"

 void
--- a/scp.c
+++ b/scp.c
@ -75,14 +75,12 @@
 */

 #include "includes.h"
-RCSID("$OpenBSD: scp.c,v 1.49 2001/01/13 18:03:07 markus Exp $");
+RCSID("$OpenBSD: scp.c,v 1.51 2001/01/21 19:05:55 markus Exp $");

-#include "ssh.h"
 #include "xmalloc.h"
-
-#ifndef _PATH_CP
-#define _PATH_CP "cp"
-#endif
+#include "atomicio.h"
+#include "pathnames.h"
+#include "log.h"

 #ifdef HAVE___PROGNAME
 extern char *__progname;
@ -130,7 +128,7 @@ int verbose_mode = 0;
 int showprogress = 1;

 /* This is the program to execute for the secured connection. ("ssh" or -S) */
-char *ssh_program = SSH_PROGRAM;
+char *ssh_program = _PATH_SSH_PROGRAM;

 /* This is the list of arguments that scp passes to ssh */
 struct {
--- a/servconf.c
+++ b/servconf.c
@ -10,16 +10,32 @@
 */

 #include "includes.h"
-RCSID("$OpenBSD: servconf.c,v 1.59 2001/01/19 12:45:26 markus Exp $");
+RCSID("$OpenBSD: servconf.c,v 1.62 2001/01/21 19:05:55 markus Exp $");
+
+#ifdef KRB4
+#include <krb.h>
+#endif
+#ifdef AFS
+#include <kafs.h>
+#endif

 #include "ssh.h"
+#include "log.h"
 #include "servconf.h"
 #include "xmalloc.h"
 #include "compat.h"
+#include "pathnames.h"
+#include "tildexpand.h"
+#include "misc.h"
+#include "cipher.h"
+

 /* add listen address */
 void add_listen_addr(ServerOptions *options, char *addr);

+/* AF_UNSPEC or AF_INET or AF_INET6 */
+extern int IPv4or6;
+
 /* Initializes the server options to their default values. */

 void
@ -87,16 +103,16 @@ fill_default_server_options(ServerOptions *options)
 	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++] = HOST_KEY_FILE;
+			options->host_key_files[options->num_host_key_files++] = _PATH_HOST_KEY_FILE;
 		if (options->protocol & SSH_PROTO_2)
-			options->host_key_files[options->num_host_key_files++] = HOST_DSA_KEY_FILE;
+			options->host_key_files[options->num_host_key_files++] = _PATH_HOST_DSA_KEY_FILE;
 	}
 	if (options->num_ports == 0)
 		options->ports[options->num_ports++] = SSH_DEFAULT_PORT;
 	if (options->listen_addrs == NULL)
 		add_listen_addr(options, NULL);
 	if (options->pid_file == NULL)
-		options->pid_file = SSH_DAEMON_PID_FILE;
+		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)
@ -281,7 +297,6 @@ parse_token(const char *cp, const char *filename,
 void
 add_listen_addr(ServerOptions *options, char *addr)
 {
-	extern int IPv4or6;
 	struct addrinfo hints, *ai, *aitop;
 	char strport[NI_MAXSERV];
 	int gaierr;
@ -332,7 +347,7 @@ read_server_config(ServerOptions *options, const char *filename)
 		/* Ignore leading whitespace */
 		if (*arg == '\0')
 			arg = strdelim(&cp);
-		if (!*arg || *arg == '#')
+		if (!arg || !*arg || *arg == '#')
 			continue;
 		intptr = NULL;
 		charptr = NULL;
--- a/serverloop.c
+++ b/serverloop.c
@ -35,22 +35,24 @@
 */

 #include "includes.h"
-RCSID("$OpenBSD: serverloop.c,v 1.40 2001/01/18 17:00:00 markus Exp $");
+RCSID("$OpenBSD: serverloop.c,v 1.42 2001/01/21 19:05:55 markus Exp $");

 #include "xmalloc.h"
-#include "ssh.h"
 #include "packet.h"
 #include "buffer.h"
+#include "log.h"
 #include "servconf.h"
 #include "pty.h"
 #include "channels.h"
-
 #include "compat.h"
+#include "ssh1.h"
 #include "ssh2.h"
 #include "auth.h"
 #include "session.h"
 #include "dispatch.h"
 #include "auth-options.h"
+#include "serverloop.h"
+#include "misc.h"

 extern ServerOptions options;

--- a/serverloop.h
+++ b/serverloop.h
@ -0,0 +1,20 @@
+/*
+ * Author: Tatu Ylonen <ylo@cs.hut.fi>
+ * 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".
+ */
+/*
+ * Performs the interactive session.  This handles data transmission between
+ * the client and the program.  Note that the notion of stdin, stdout, and
+ * stderr in this function is sort of reversed: this function writes to stdin
+ * (of the child program), and reads from stdout and stderr (of the child
+ * program).
+ */
+void    server_loop(pid_t pid, int fdin, int fdout, int fderr);
+void    server_loop2(void);
--- a/session.c
+++ b/session.c
@ -33,24 +33,29 @@
 */

 #include "includes.h"
-RCSID("$OpenBSD: session.c,v 1.49 2001/01/18 17:00:00 markus Exp $");
+RCSID("$OpenBSD: session.c,v 1.51 2001/01/21 19:05:56 markus Exp $");

-#include "xmalloc.h"
 #include "ssh.h"
+#include "ssh1.h"
+#include "ssh2.h"
+#include "xmalloc.h"
 #include "pty.h"
 #include "packet.h"
 #include "buffer.h"
 #include "mpaux.h"
-#include "servconf.h"
 #include "uidswap.h"
 #include "compat.h"
 #include "channels.h"
 #include "nchan.h"
-
 #include "bufaux.h"
-#include "ssh2.h"
 #include "auth.h"
 #include "auth-options.h"
+#include "pathnames.h"
+#include "log.h"
+#include "servconf.h"
+#include "login.h"
+#include "serverloop.h"
+#include "canohost.h"

 #ifdef WITH_IRIX_PROJECT
 #include <proj.h>
@ -1333,28 +1338,28 @@ do_child(const char *command, struct passwd * pw, const char *term,
 	 * in this order).
 	 */
 	if (!options.use_login) {
-		if (stat(SSH_USER_RC, &st) >= 0) {
+		if (stat(_PATH_SSH_USER_RC, &st) >= 0) {
 			if (debug_flag)
-				fprintf(stderr, "Running %s %s\n", _PATH_BSHELL, SSH_USER_RC);
+				fprintf(stderr, "Running %s %s\n", _PATH_BSHELL, _PATH_SSH_USER_RC);

-			f = popen(_PATH_BSHELL " " SSH_USER_RC, "w");
+			f = popen(_PATH_BSHELL " " _PATH_SSH_USER_RC, "w");
 			if (f) {
 				if (auth_proto != NULL && auth_data != NULL)
 					fprintf(f, "%s %s\n", auth_proto, auth_data);
 				pclose(f);
 			} else
-				fprintf(stderr, "Could not run %s\n", SSH_USER_RC);
-		} else if (stat(SSH_SYSTEM_RC, &st) >= 0) {
+				fprintf(stderr, "Could not run %s\n", _PATH_SSH_USER_RC);
+		} else if (stat(_PATH_SSH_SYSTEM_RC, &st) >= 0) {
 			if (debug_flag)
-				fprintf(stderr, "Running %s %s\n", _PATH_BSHELL, SSH_SYSTEM_RC);
+				fprintf(stderr, "Running %s %s\n", _PATH_BSHELL, _PATH_SSH_SYSTEM_RC);

-			f = popen(_PATH_BSHELL " " SSH_SYSTEM_RC, "w");
+			f = popen(_PATH_BSHELL " " _PATH_SSH_SYSTEM_RC, "w");
 			if (f) {
 				if (auth_proto != NULL && auth_data != NULL)
 					fprintf(f, "%s %s\n", auth_proto, auth_data);
 				pclose(f);
 			} else
-				fprintf(stderr, "Could not run %s\n", SSH_SYSTEM_RC);
+				fprintf(stderr, "Could not run %s\n", _PATH_SSH_SYSTEM_RC);
 		} else if (options.xauth_location != NULL) {
 			/* Add authority data to .Xauthority if appropriate. */
 			if (auth_proto != NULL && auth_data != NULL) {
--- a/sftp-server.c
+++ b/sftp-server.c
@ -22,12 +22,12 @@
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 #include "includes.h"
-RCSID("$OpenBSD: sftp-server.c,v 1.13 2001/01/16 20:54:27 markus Exp $");
+RCSID("$OpenBSD: sftp-server.c,v 1.14 2001/01/21 19:05:56 markus Exp $");

-#include "ssh.h"
 #include "buffer.h"
 #include "bufaux.h"
 #include "getput.h"
+#include "log.h"
 #include "xmalloc.h"

 #include "sftp.h"
--- a/ssh-add.c
+++ b/ssh-add.c
@ -35,18 +35,19 @@
 */

 #include "includes.h"
-RCSID("$OpenBSD: ssh-add.c,v 1.24 2001/01/13 18:14:13 markus Exp $");
+RCSID("$OpenBSD: ssh-add.c,v 1.27 2001/01/21 19:05:56 markus Exp $");

 #include <openssl/evp.h>
-#include <openssl/rsa.h>
-#include <openssl/dsa.h>

-#include "rsa.h"
 #include "ssh.h"
+#include "rsa.h"
+#include "log.h"
 #include "xmalloc.h"
 #include "key.h"
 #include "authfd.h"
 #include "authfile.h"
+#include "pathnames.h"
+#include "readpass.h"

 #ifdef HAVE___PROGNAME
 extern char *__progname;
@ -103,6 +104,8 @@ ssh_askpass(char *askpass, char *msg)
 	int p[2], status;
 	char buf[1024];

+	if (fflush(stdout) != 0)
+		error("ssh_askpass: fflush: %s", strerror(errno));
 	if (askpass == NULL)
 		fatal("internal error: askpass undefined");
 	if (pipe(p) < 0)
@ -117,9 +120,7 @@ ssh_askpass(char *askpass, char *msg)
 		fatal("ssh_askpass: exec(%s): %s", askpass, strerror(errno));
 	}
 	close(p[1]);
-	buf[0] = '\0';
-	atomicio(read, p[0], buf, sizeof buf);
-	len = strlen(buf);
+	len = read(p[0], buf, sizeof buf);
 	close(p[0]);
 	while (waitpid(pid, &status, 0) < 0)
 		if (errno != EINTR)
@ -166,7 +167,7 @@ add_file(AuthenticationConnection *ac, const char *filename)
 		if (getenv(SSH_ASKPASS_ENV))
 			askpass = getenv(SSH_ASKPASS_ENV);
 		else
-			askpass = SSH_ASKPASS_DEFAULT;
+			askpass = _PATH_SSH_ASKPASS_DEFAULT;
 	}

 	/* At first, try empty passphrase */
@ -291,7 +292,7 @@ main(int argc, char **argv)
 			ssh_close_authentication_connection(ac);
 			exit(1);
 		}
-		snprintf(buf, sizeof buf, "%s/%s", pw->pw_dir, SSH_CLIENT_IDENTITY);
+		snprintf(buf, sizeof buf, "%s/%s", pw->pw_dir, _PATH_SSH_CLIENT_IDENTITY);
 		if (deleting)
 			delete_file(ac, buf);
 		else
--- a/ssh-agent.c
+++ b/ssh-agent.c
@ -1,4 +1,4 @@
-/*	$OpenBSD: ssh-agent.c,v 1.45 2000/12/19 23:17:58 markus Exp $	*/
+/*	$OpenBSD: ssh-agent.c,v 1.47 2001/01/21 19:05:56 markus Exp $	*/

 /*
 * Author: Tatu Ylonen <ylo@cs.hut.fi>
@ -37,7 +37,10 @@
 */

 #include "includes.h"
-RCSID("$OpenBSD: ssh-agent.c,v 1.45 2000/12/19 23:17:58 markus Exp $");
+RCSID("$OpenBSD: ssh-agent.c,v 1.47 2001/01/21 19:05:56 markus Exp $");
+
+#include <openssl/evp.h>
+#include <openssl/md5.h>

 #include "ssh.h"
 #include "rsa.h"
@ -47,15 +50,12 @@ RCSID("$OpenBSD: ssh-agent.c,v 1.45 2000/12/19 23:17:58 markus Exp $");
 #include "packet.h"
 #include "getput.h"
 #include "mpaux.h"
-
-#include <openssl/evp.h>
-#include <openssl/md5.h>
-#include <openssl/dsa.h>
-#include <openssl/rsa.h>
 #include "key.h"
 #include "authfd.h"
+#include "cipher.h"
 #include "kex.h"
 #include "compat.h"
+#include "log.h"

 typedef struct {
 	int fd;
@ -97,6 +97,8 @@ extern char *__progname;
 char *__progname;
 #endif

+int	prepare_select(fd_set **, fd_set **, int *);
+
 void
 idtab_init(void)
 {
@ -293,7 +295,7 @@ process_remove_identity(SocketEntry *e, int version)

 		if (bits != key_size(key))
 			log("Warning: identity keysize mismatch: actual %d, announced %d",
-			      key_size(key), bits);
+			    key_size(key), bits);
 		break;
 	case 2:
 		blob = buffer_get_string(&e->input, &blen);
@ -388,7 +390,7 @@ process_add_identity(SocketEntry *e, int version)
 	switch (version) {
 	case 1:
 		k = key_new_private(KEY_RSA1);
-		buffer_get_int(&e->input);		 	/* ignored */
+		buffer_get_int(&e->input);			/* ignored */
 		buffer_get_bignum(&e->input, k->rsa->n);
 		buffer_get_bignum(&e->input, k->rsa->e);
 		buffer_get_bignum(&e->input, k->rsa->d);
@ -403,7 +405,7 @@ process_add_identity(SocketEntry *e, int version)
 		break;
 	case 2:
 		type_name = buffer_get_string(&e->input, NULL);
-                type = key_type_from_name(type_name);
+		type = key_type_from_name(type_name);
 		xfree(type_name);
 		switch(type) {
 		case KEY_DSA:
@ -556,17 +558,17 @@ new_socket(int type, int fd)
 	buffer_init(&sockets[old_alloc].output);
 }

-void
-prepare_select(fd_set *readset, fd_set *writeset)
+int
+prepare_select(fd_set **fdrp, fd_set **fdwp, int *fdl)
 {
-	u_int i;
-	for (i = 0; i < sockets_alloc; i++)
+	u_int i, sz;
+	int n = 0;
+
+	for (i = 0; i < sockets_alloc; i++) {
 		switch (sockets[i].type) {
 		case AUTH_SOCKET:
 		case AUTH_CONNECTION:
-			FD_SET(sockets[i].fd, readset);
-			if (buffer_len(&sockets[i].output) > 0)
-				FD_SET(sockets[i].fd, writeset);
+			n = MAX(n, sockets[i].fd);
 			break;
 		case AUTH_UNUSED:
 			break;
@ -574,6 +576,34 @@ prepare_select(fd_set *readset, fd_set *writeset)
 			fatal("Unknown socket type %d", sockets[i].type);
 			break;
 		}
+	}
+
+	sz = howmany(n+1, NFDBITS) * sizeof(fd_mask);
+	if (*fdrp == NULL || n > *fdl) {
+		if (*fdrp)
+			free(*fdrp);
+		if (*fdwp)
+			free(*fdwp);
+		*fdrp = xmalloc(sz);
+		*fdwp = xmalloc(sz);
+		*fdl = n;
+	}
+	memset(*fdrp, 0, sz);
+	memset(*fdwp, 0, sz);
+
+	for (i = 0; i < sockets_alloc; i++) {
+		switch (sockets[i].type) {
+		case AUTH_SOCKET:
+		case AUTH_CONNECTION:
+			FD_SET(sockets[i].fd, *fdrp);
+			if (buffer_len(&sockets[i].output) > 0)
+				FD_SET(sockets[i].fd, *fdwp);
+			break;
+		default:
+			break;
+		}
+	}
+	return (1);
 }

 void
@ -592,7 +622,8 @@ after_select(fd_set *readset, fd_set *writeset)
 		case AUTH_SOCKET:
 			if (FD_ISSET(sockets[i].fd, readset)) {
 				slen = sizeof(sunaddr);
-				sock = accept(sockets[i].fd, (struct sockaddr *) & sunaddr, &slen);
+				sock = accept(sockets[i].fd,
+				    (struct sockaddr *) &sunaddr, &slen);
 				if (sock < 0) {
 					perror("accept from AUTH_SOCKET");
 					break;
@ -603,8 +634,9 @@ after_select(fd_set *readset, fd_set *writeset)
 		case AUTH_CONNECTION:
 			if (buffer_len(&sockets[i].output) > 0 &&
 			    FD_ISSET(sockets[i].fd, writeset)) {
-				len = write(sockets[i].fd, buffer_ptr(&sockets[i].output),
-					 buffer_len(&sockets[i].output));
+				len = write(sockets[i].fd,
+				    buffer_ptr(&sockets[i].output),
+				    buffer_len(&sockets[i].output));
 				if (len <= 0) {
 					shutdown(sockets[i].fd, SHUT_RDWR);
 					close(sockets[i].fd);
@ -637,12 +669,15 @@ after_select(fd_set *readset, fd_set *writeset)
 void
 check_parent_exists(int sig)
 {
+	int save_errno = errno;
+
 	if (parent_pid != -1 && kill(parent_pid, 0) < 0) {
 		/* printf("Parent has died - Authentication agent exiting.\n"); */
 		exit(1);
 	}
 	signal(SIGALRM, check_parent_exists);
 	alarm(10);
+	errno = save_errno;
 }

 void
@ -664,14 +699,13 @@ usage()
 {
 	fprintf(stderr, "ssh-agent version %s\n", SSH_VERSION);
 	fprintf(stderr, "Usage: %s [-c | -s] [-k] [command {args...]]\n",
-		__progname);
+            __progname);
 	exit(1);
 }

 int
 main(int ac, char **av)
 {
-	fd_set readset, writeset;
 	int sock, c_flag = 0, k_flag = 0, s_flag = 0, ch;
 	struct sockaddr_un sunaddr;
 #ifdef HAVE_SETRLIMIT
@ -680,6 +714,7 @@ main(int ac, char **av)
 	pid_t pid;
 	char *shell, *format, *pidstr, pidstrbuf[1 + 3 * sizeof pid];
 	extern int optind;
+	fd_set *readsetp = NULL, *writesetp = NULL;

 	__progname = get_progname(av[0]);
 	init_rng();
@ -722,14 +757,13 @@ main(int ac, char **av)
 		pidstr = getenv(SSH_AGENTPID_ENV_NAME);
 		if (pidstr == NULL) {
 			fprintf(stderr, "%s not set, cannot kill agent\n",
-				SSH_AGENTPID_ENV_NAME);
+			    SSH_AGENTPID_ENV_NAME);
 			exit(1);
 		}
 		pid = atoi(pidstr);
-		if (pid < 1) {	/* XXX PID_MAX check too */
-		/* Yes, PID_MAX check please */
+		if (pid < 1) {
 			fprintf(stderr, "%s=\"%s\", which is not a good PID\n",
-				SSH_AGENTPID_ENV_NAME, pidstr);
+			    SSH_AGENTPID_ENV_NAME, pidstr);
 			exit(1);
 		}
 		if (kill(pid, SIGTERM) == -1) {
@ -751,7 +785,7 @@ main(int ac, char **av)
 		exit(1);
 	}
 	snprintf(socket_name, sizeof socket_name, "%s/agent.%d", socket_dir,
-		 parent_pid);
+	    parent_pid);

 	/*
 	 * Create socket early so it will exist before command gets run from
@ -773,6 +807,7 @@ main(int ac, char **av)
 		perror("listen");
 		cleanup_exit(1);
 	}
+
 	/*
 	 * Fork, and have the parent execute the command, if any, or present
 	 * the socket data.  The child continues as the authentication agent.
@ -788,9 +823,9 @@ main(int ac, char **av)
 		if (ac == 0) {
 			format = c_flag ? "setenv %s %s;\n" : "%s=%s; export %s;\n";
 			printf(format, SSH_AUTHSOCKET_ENV_NAME, socket_name,
-			       SSH_AUTHSOCKET_ENV_NAME);
+			    SSH_AUTHSOCKET_ENV_NAME);
 			printf(format, SSH_AGENTPID_ENV_NAME, pidstrbuf,
-			       SSH_AGENTPID_ENV_NAME);
+			    SSH_AGENTPID_ENV_NAME);
 			printf("echo Agent pid %d;\n", pid);
 			exit(0);
 		}
@ -834,15 +869,13 @@ main(int ac, char **av)
 	signal(SIGHUP, cleanup_exit);
 	signal(SIGTERM, cleanup_exit);
 	while (1) {
-		FD_ZERO(&readset);
-		FD_ZERO(&writeset);
-		prepare_select(&readset, &writeset);
-		if (select(max_fd + 1, &readset, &writeset, NULL, NULL) < 0) {
+		prepare_select(&readsetp, &writesetp, &max_fd);
+		if (select(max_fd + 1, readsetp, writesetp, NULL, NULL) < 0) {
 			if (errno == EINTR)
 				continue;
 			exit(1);
 		}
-		after_select(&readset, &writeset);
+		after_select(readsetp, writesetp);
 	}
 	/* NOTREACHED */
 }
--- a/ssh-dss.c
+++ b/ssh-dss.c
@ -23,19 +23,16 @@
 */

 #include "includes.h"
-RCSID("$OpenBSD: ssh-dss.c,v 1.2 2000/12/19 23:17:58 markus Exp $");
+RCSID("$OpenBSD: ssh-dss.c,v 1.4 2001/01/21 19:05:57 markus Exp $");
+
+#include <openssl/bn.h>
+#include <openssl/evp.h>

-#include "ssh.h"
 #include "xmalloc.h"
 #include "buffer.h"
 #include "bufaux.h"
 #include "compat.h"
-
-#include <openssl/bn.h>
-#include <openssl/rsa.h>
-#include <openssl/dsa.h>
-#include <openssl/evp.h>
-
+#include "log.h"
 #include "key.h"

 #define INTBLOB_LEN	20
@ -54,7 +51,7 @@ ssh_dss_sign(
 	EVP_MD_CTX md;
 	u_int rlen;
 	u_int slen;
-	u_int len;
+	u_int len, dlen;
 	u_char sigblob[SIGBLOB_LEN];
 	Buffer b;

@ -62,15 +59,18 @@ ssh_dss_sign(
 		error("ssh_dss_sign: no DSA key");
 		return -1;
 	}
-	digest = xmalloc(evp_md->md_size);
+	dlen = evp_md->md_size;
+	digest = xmalloc(dlen);
 	EVP_DigestInit(&md, evp_md);
 	EVP_DigestUpdate(&md, data, datalen);
 	EVP_DigestFinal(&md, digest, NULL);

-	sig = DSA_do_sign(digest, evp_md->md_size, key->dsa);
+	sig = DSA_do_sign(digest, dlen, key->dsa);
 	if (sig == NULL) {
 		fatal("ssh_dss_sign: cannot sign");
 	}
+	memset(digest, 0, dlen);
+	xfree(digest);

 	rlen = BN_num_bytes(sig->r);
 	slen = BN_num_bytes(sig->s);
--- a/ssh-keygen.1
+++ b/ssh-keygen.1
@ -71,8 +71,6 @@
 .Nm ssh-keygen
 .Fl l
 .Op Fl f Ar input_keyfile
-.Nm ssh-keygen
-.Fl R
 .Sh DESCRIPTION
 .Nm
 generates and manages authentication keys for
@ -172,10 +170,6 @@ Provides the new comment.
 Provides the new passphrase.
 .It Fl P Ar passphrase
 Provides the (old) passphrase.
-.It Fl R
-If RSA support is functional, immediately exits with code 0.  If RSA
-support is not functional, exits with code 1.  This flag will be
-removed once the RSA patent expires.
 .It Fl x
 This option will read a private
 OpenSSH DSA format file and print a SSH2-compatible public key to stdout.
--- a/ssh-keygen.c
+++ b/ssh-keygen.c
@ -12,22 +12,20 @@
 */

 #include "includes.h"
-RCSID("$OpenBSD: ssh-keygen.c,v 1.39 2001/01/13 18:03:07 markus Exp $");
+RCSID("$OpenBSD: ssh-keygen.c,v 1.41 2001/01/21 19:05:57 markus Exp $");

 #include <openssl/evp.h>
 #include <openssl/pem.h>
-#include <openssl/rsa.h>
-#include <openssl/dsa.h>

-#include "ssh.h"
 #include "xmalloc.h"
 #include "key.h"
-#include "rsa.h"
 #include "authfile.h"
 #include "uuencode.h"
-
 #include "buffer.h"
 #include "bufaux.h"
+#include "pathnames.h"
+#include "log.h"
+#include "readpass.h"

 /* Number of bits in the RSA/DSA key.  This value can be changed on the command line. */
 int bits = 1024;
@ -87,13 +85,13 @@ ask_filename(struct passwd *pw, const char *prompt)

 	switch (key_type_from_name(key_type_name)) {
 	case KEY_RSA1:
-		name = SSH_CLIENT_IDENTITY;
+		name = _PATH_SSH_CLIENT_IDENTITY;
 		break;
 	case KEY_DSA:
-		name = SSH_CLIENT_ID_DSA;
+		name = _PATH_SSH_CLIENT_ID_DSA;
 		break;
 	case KEY_RSA:
-		name = SSH_CLIENT_ID_RSA;
+		name = _PATH_SSH_CLIENT_ID_RSA;
 		break;
 	default:
 		fprintf(stderr, "bad key type");
@ -757,7 +755,7 @@ main(int ac, char **av)
 		ask_filename(pw, "Enter file in which to save the key");

 	/* Create ~/.ssh directory if it doesn\'t already exist. */
-	snprintf(dotsshdir, sizeof dotsshdir, "%s/%s", pw->pw_dir, SSH_USER_DIR);
+	snprintf(dotsshdir, sizeof dotsshdir, "%s/%s", pw->pw_dir, _PATH_SSH_USER_DIR);
 	if (strstr(identity_file, dotsshdir) != NULL &&
 	    stat(dotsshdir, &st) < 0) {
 		if (mkdir(dotsshdir, 0700) < 0)
--- a/ssh-keyscan.c
+++ b/ssh-keyscan.c
@ -8,7 +8,7 @@
 */

 #include "includes.h"
-RCSID("$OpenBSD: ssh-keyscan.c,v 1.9 2001/01/13 18:12:47 markus Exp $");
+RCSID("$OpenBSD: ssh-keyscan.c,v 1.11 2001/01/21 19:05:57 markus Exp $");

 #if defined(HAVE_SYS_QUEUE_H)  &&  !defined(HAVE_BOGUS_SYS_QUEUE_H)
 #include <sys/queue.h>
@ -18,14 +18,14 @@ RCSID("$OpenBSD: ssh-keyscan.c,v 1.9 2001/01/13 18:12:47 markus Exp $");
 #include <errno.h>

 #include <openssl/bn.h>
-#include <openssl/rsa.h>
-#include <openssl/dsa.h>

 #include "xmalloc.h"
 #include "ssh.h"
+#include "ssh1.h"
 #include "key.h"
 #include "buffer.h"
 #include "bufaux.h"
+#include "log.h"

 static int argno = 1;		/* Number of argument currently being parsed */

--- a/ssh-rsa.c
+++ b/ssh-rsa.c
@ -23,18 +23,15 @@
 */

 #include "includes.h"
-RCSID("$OpenBSD: ssh-rsa.c,v 1.4 2001/01/16 19:20:06 markus Exp $");
-
-#include "ssh.h"
-#include "xmalloc.h"
-#include "buffer.h"
-#include "bufaux.h"
+RCSID("$OpenBSD: ssh-rsa.c,v 1.5 2001/01/21 19:05:58 markus Exp $");

 #include <openssl/evp.h>
-#include <openssl/dsa.h>
-#include <openssl/rsa.h>
 #include <openssl/err.h>

+#include "xmalloc.h"
+#include "log.h"
+#include "buffer.h"
+#include "bufaux.h"
 #include "key.h"

 /* RSASSA-PKCS1-v1_5 (PKCS #1 v2.0 signature) with SHA1 */
--- a/ssh.c
+++ b/ssh.c
@ -39,27 +39,31 @@
 */

 #include "includes.h"
-RCSID("$OpenBSD: ssh.c,v 1.82 2001/01/15 21:40:10 markus Exp $");
+RCSID("$OpenBSD: ssh.c,v 1.84 2001/01/21 19:05:58 markus Exp $");

 #include <openssl/evp.h>
-#include <openssl/dsa.h>
-#include <openssl/rsa.h>
 #include <openssl/err.h>

-#include "xmalloc.h"
 #include "ssh.h"
-#include "packet.h"
-#include "buffer.h"
-#include "readconf.h"
-#include "uidswap.h"
-
+#include "ssh1.h"
 #include "ssh2.h"
 #include "compat.h"
+#include "cipher.h"
+#include "xmalloc.h"
+#include "packet.h"
+#include "buffer.h"
+#include "uidswap.h"
 #include "channels.h"
 #include "key.h"
 #include "authfd.h"
 #include "authfile.h"
+#include "pathnames.h"
 #include "clientloop.h"
+#include "log.h"
+#include "readconf.h"
+#include "sshconnect.h"
+#include "tildexpand.h"
+#include "misc.h"

 #ifdef HAVE___PROGNAME
 extern char *__progname;
@ -555,11 +559,11 @@ main(int ac, char **av)
 	log_init(av[0], options.log_level, SYSLOG_FACILITY_USER, 0);

 	/* Read per-user configuration file. */
-	snprintf(buf, sizeof buf, "%.100s/%.100s", pw->pw_dir, SSH_USER_CONFFILE);
+	snprintf(buf, sizeof buf, "%.100s/%.100s", pw->pw_dir, _PATH_SSH_USER_CONFFILE);
 	read_config_file(buf, host, &options);

 	/* Read systemwide configuration file. */
-	read_config_file(HOST_CONFIG_FILE, host, &options);
+	read_config_file(_PATH_HOST_CONFIG_FILE, host, &options);

 	/* Fill configuration defaults. */
 	fill_default_options(&options);
@ -624,7 +628,7 @@ main(int ac, char **av)
 		host_private_key = RSA_new();
 		k.type = KEY_RSA1;
 		k.rsa = host_private_key;
-		if (load_private_key(HOST_KEY_FILE, "", &k, NULL))
+		if (load_private_key(_PATH_HOST_KEY_FILE, "", &k, NULL))
 			host_private_key_loaded = 1;
 	}
 	/*
@ -648,7 +652,7 @@ main(int ac, char **av)
 	 * Now that we are back to our own permissions, create ~/.ssh
 	 * directory if it doesn\'t already exist.
 	 */
-	snprintf(buf, sizeof buf, "%.100s/%.100s", pw->pw_dir, SSH_USER_DIR);
+	snprintf(buf, sizeof buf, "%.100s/%.100s", pw->pw_dir, _PATH_SSH_USER_DIR);
 	if (stat(buf, &st) < 0)
 		if (mkdir(buf, 0700) < 0)
 			error("Could not create directory '%.200s'.", buf);
--- a/ssh.h
+++ b/ssh.h
@ -3,8 +3,6 @@
 * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
 *                    All rights reserved
 *
- * Generic header file for ssh.
- *
 * 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
@ -12,7 +10,7 @@
 * called by a name other than "ssh" or "Secure Shell".
 */

-/* RCSID("$OpenBSD: ssh.h,v 1.59 2001/01/19 12:45:27 markus Exp $"); */
+/* RCSID("$OpenBSD: ssh.h,v 1.61 2001/01/21 19:05:59 markus Exp $"); */

 #ifndef SSH_H
 #define SSH_H
@ -26,8 +24,9 @@
 #ifdef HAVE_SYS_SELECT_H
 # include <sys/select.h>
 #endif
-#include "rsa.h"
-#include "cipher.h"
+
+//#include "rsa.h"
+//#include "cipher.h"

 /* Cipher used for encrypting authentication files. */
 #define SSH_AUTHFILE_CIPHER	SSH_CIPHER_3DES
@ -68,138 +67,21 @@
 # define SSHD_PAM_SERVICE       "sshd"
 #endif

-#ifndef ETCDIR
-#define ETCDIR			"/etc"
-#endif /* ETCDIR */
-
-#ifndef PIDDIR
-#define PIDDIR			"/var/run"
-#endif /* PIDDIR */
-
 /*
- * System-wide file containing host keys of known hosts.  This file should be
- * world-readable.
+ * Name of the environment variable containing the pathname of the
+ * authentication socket.
 */
-#define SSH_SYSTEM_HOSTFILE	ETCDIR "/ssh_known_hosts"
-#define SSH_SYSTEM_HOSTFILE2	ETCDIR "/ssh_known_hosts2"
-
-/*
- * Of these, ssh_host_key must be readable only by root, whereas ssh_config
- * should be world-readable.
- */
-#define HOST_KEY_FILE		ETCDIR "/ssh_host_key"
-#define SERVER_CONFIG_FILE	ETCDIR "/sshd_config"
-#define HOST_CONFIG_FILE	ETCDIR "/ssh_config"
-#define HOST_DSA_KEY_FILE	ETCDIR "/ssh_host_dsa_key"
-#define DH_PRIMES		ETCDIR "/primes"
-
-#ifndef SSH_PROGRAM
-#define SSH_PROGRAM			"/usr/bin/ssh"
-#endif /* SSH_PROGRAM */
-
-#ifndef LOGIN_PROGRAM
-# ifdef LOGIN_PROGRAM_FALLBACK
-#  define LOGIN_PROGRAM		LOGIN_PROGRAM_FALLBACK
-# else
-#  define LOGIN_PROGRAM		"/usr/bin/login"
-# endif
-#endif /* LOGIN_PROGRAM */
-
-#ifndef ASKPASS_PROGRAM
-#define ASKPASS_PROGRAM		"/usr/lib/ssh/ssh-askpass"
-#endif /* ASKPASS_PROGRAM */
-
-/*
- * The process id of the daemon listening for connections is saved here to
- * make it easier to kill the correct daemon when necessary.
- */
-#define SSH_DAEMON_PID_FILE	PIDDIR "/sshd.pid"
-
-/*
- * The directory in user\'s home directory in which the files reside. The
- * directory should be world-readable (though not all files are).
- */
-#define SSH_USER_DIR		".ssh"
-
-/*
- * Relevant only when using builtin PRNG.
- */
-#ifndef SSH_PRNG_SEED_FILE
-# define SSH_PRNG_SEED_FILE      SSH_USER_DIR"/prng_seed"
-#endif /* SSH_PRNG_SEED_FILE */
-#ifndef SSH_PRNG_COMMAND_FILE
-# define SSH_PRNG_COMMAND_FILE   ETCDIR "/ssh_prng_cmds"
-#endif /* SSH_PRNG_COMMAND_FILE */
-
-/*
- * Per-user file containing host keys of known hosts.  This file need not be
- * readable by anyone except the user him/herself, though this does not
- * contain anything particularly secret.
- */
-#define SSH_USER_HOSTFILE	"~/.ssh/known_hosts"
-#define SSH_USER_HOSTFILE2	"~/.ssh/known_hosts2"
-
-/*
- * Name of the default file containing client-side authentication key. This
- * file should only be readable by the user him/herself.
- */
-#define SSH_CLIENT_IDENTITY	".ssh/identity"
-#define SSH_CLIENT_ID_DSA	".ssh/id_dsa"
-#define SSH_CLIENT_ID_RSA	".ssh/id_rsa"
-
-/*
- * Configuration file in user\'s home directory.  This file need not be
- * readable by anyone but the user him/herself, but does not contain anything
- * particularly secret.  If the user\'s home directory resides on an NFS
- * volume where root is mapped to nobody, this may need to be world-readable.
- */
-#define SSH_USER_CONFFILE	".ssh/config"
-
-/*
- * File containing a list of those rsa keys that permit logging in as this
- * user.  This file need not be readable by anyone but the user him/herself,
- * but does not contain anything particularly secret.  If the user\'s home
- * directory resides on an NFS volume where root is mapped to nobody, this
- * may need to be world-readable.  (This file is read by the daemon which is
- * running as root.)
- */
-#define SSH_USER_PERMITTED_KEYS	".ssh/authorized_keys"
-#define SSH_USER_PERMITTED_KEYS2	".ssh/authorized_keys2"
-
-/*
- * Per-user and system-wide ssh "rc" files.  These files are executed with
- * /bin/sh before starting the shell or command if they exist.  They will be
- * passed "proto cookie" as arguments if X11 forwarding with spoofing is in
- * use.  xauth will be run if neither of these exists.
- */
-#define SSH_USER_RC		".ssh/rc"
-#define SSH_SYSTEM_RC		ETCDIR "/sshrc"
-
-/*
- * Ssh-only version of /etc/hosts.equiv.  Additionally, the daemon may use
- * ~/.rhosts and /etc/hosts.equiv if rhosts authentication is enabled.
- */
-#define SSH_HOSTS_EQUIV		ETCDIR "/shosts.equiv"
+#define SSH_AGENTPID_ENV_NAME "SSH_AGENT_PID"

 /*
 * Name of the environment variable containing the pathname of the
 * authentication socket.
 */
-#define SSH_AUTHSOCKET_ENV_NAME	"SSH_AUTH_SOCK"
+#define SSH_AUTHSOCKET_ENV_NAME "SSH_AUTH_SOCK"

 /*
- * Name of the environment variable containing the pathname of the
- * authentication socket.
+ * Environment variable for overwriting the default location of askpass
 */
-#define SSH_AGENTPID_ENV_NAME	"SSH_AGENT_PID"
-
-/*
- * Default path to ssh-askpass used by ssh-add,
- * environment variable for overwriting the default location
- */
-#ifndef SSH_ASKPASS_DEFAULT
-# define SSH_ASKPASS_DEFAULT	"/usr/X11R6/bin/ssh-askpass"
-#endif
 #define SSH_ASKPASS_ENV		"SSH_ASKPASS"

 /*
@ -217,339 +99,4 @@
 /* Name of Kerberos service for SSH to use. */
 #define KRB4_SERVICE_NAME		"rcmd"

-/*
- * Authentication methods.  New types can be added, but old types should not
- * be removed for compatibility.  The maximum allowed value is 31.
- */
-#define SSH_AUTH_RHOSTS		1
-#define SSH_AUTH_RSA		2
-#define SSH_AUTH_PASSWORD	3
-#define SSH_AUTH_RHOSTS_RSA	4
-#define SSH_AUTH_TIS		5
-#define SSH_AUTH_KERBEROS	6
-#define SSH_PASS_KERBEROS_TGT	7
-				/* 8 to 15 are reserved */
-#define SSH_PASS_AFS_TOKEN	21
-
-/* Protocol flags.  These are bit masks. */
-#define SSH_PROTOFLAG_SCREEN_NUMBER	1	/* X11 forwarding includes screen */
-#define SSH_PROTOFLAG_HOST_IN_FWD_OPEN	2	/* forwarding opens contain host */
-
-/*
- * Definition of message types.  New values can be added, but old values
- * should not be removed or without careful consideration of the consequences
- * for compatibility.  The maximum value is 254; value 255 is reserved for
- * future extension.
- */
-/* Message name */			/* msg code */	/* arguments */
-#define SSH_MSG_NONE				0	/* no message */
-#define SSH_MSG_DISCONNECT			1	/* cause (string) */
-#define SSH_SMSG_PUBLIC_KEY			2	/* ck,msk,srvk,hostk */
-#define SSH_CMSG_SESSION_KEY			3	/* key (BIGNUM) */
-#define SSH_CMSG_USER				4	/* user (string) */
-#define SSH_CMSG_AUTH_RHOSTS			5	/* user (string) */
-#define SSH_CMSG_AUTH_RSA			6	/* modulus (BIGNUM) */
-#define SSH_SMSG_AUTH_RSA_CHALLENGE		7	/* int (BIGNUM) */
-#define SSH_CMSG_AUTH_RSA_RESPONSE		8	/* int (BIGNUM) */
-#define SSH_CMSG_AUTH_PASSWORD			9	/* pass (string) */
-#define SSH_CMSG_REQUEST_PTY		        10	/* TERM, tty modes */
-#define SSH_CMSG_WINDOW_SIZE		        11	/* row,col,xpix,ypix */
-#define SSH_CMSG_EXEC_SHELL			12	/* */
-#define SSH_CMSG_EXEC_CMD			13	/* cmd (string) */
-#define SSH_SMSG_SUCCESS			14	/* */
-#define SSH_SMSG_FAILURE			15	/* */
-#define SSH_CMSG_STDIN_DATA			16	/* data (string) */
-#define SSH_SMSG_STDOUT_DATA			17	/* data (string) */
-#define SSH_SMSG_STDERR_DATA			18	/* data (string) */
-#define SSH_CMSG_EOF				19	/* */
-#define SSH_SMSG_EXITSTATUS			20	/* status (int) */
-#define SSH_MSG_CHANNEL_OPEN_CONFIRMATION	21	/* channel (int) */
-#define SSH_MSG_CHANNEL_OPEN_FAILURE		22	/* channel (int) */
-#define SSH_MSG_CHANNEL_DATA			23	/* ch,data (int,str) */
-#define SSH_MSG_CHANNEL_CLOSE			24	/* channel (int) */
-#define SSH_MSG_CHANNEL_CLOSE_CONFIRMATION	25	/* channel (int) */
-/*      SSH_CMSG_X11_REQUEST_FORWARDING         26         OBSOLETE */
-#define SSH_SMSG_X11_OPEN			27	/* channel (int) */
-#define SSH_CMSG_PORT_FORWARD_REQUEST		28	/* p,host,hp (i,s,i) */
-#define SSH_MSG_PORT_OPEN			29	/* ch,h,p (i,s,i) */
-#define SSH_CMSG_AGENT_REQUEST_FORWARDING	30	/* */
-#define SSH_SMSG_AGENT_OPEN			31	/* port (int) */
-#define SSH_MSG_IGNORE				32	/* string */
-#define SSH_CMSG_EXIT_CONFIRMATION		33	/* */
-#define SSH_CMSG_X11_REQUEST_FORWARDING		34	/* proto,data (s,s) */
-#define SSH_CMSG_AUTH_RHOSTS_RSA		35	/* user,mod (s,mpi) */
-#define SSH_MSG_DEBUG				36	/* string */
-#define SSH_CMSG_REQUEST_COMPRESSION		37	/* level 1-9 (int) */
-#define SSH_CMSG_MAX_PACKET_SIZE		38	/* size 4k-1024k (int) */
-#define SSH_CMSG_AUTH_TIS			39	/* we use this for s/key */
-#define SSH_SMSG_AUTH_TIS_CHALLENGE		40	/* challenge (string) */
-#define SSH_CMSG_AUTH_TIS_RESPONSE		41	/* response (string) */
-#define SSH_CMSG_AUTH_KERBEROS			42	/* (KTEXT) */
-#define SSH_SMSG_AUTH_KERBEROS_RESPONSE		43	/* (KTEXT) */
-#define SSH_CMSG_HAVE_KERBEROS_TGT		44	/* credentials (s) */
-#define SSH_CMSG_HAVE_AFS_TOKEN			65	/* token (s) */
-
-/*------------ definitions for login.c -------------*/
-
-/*
- * Returns the time when the user last logged in.  Returns 0 if the
- * information is not available.  This must be called before record_login.
- * The host from which the user logged in is stored in buf.
- */
-u_long
-get_last_login_time(uid_t uid, const char *logname,
-    char *buf, u_int bufsize);
-
-/*
- * Records that the user has logged in.  This does many things normally done
- * by login(1).
- */
-void
-record_login(pid_t pid, const char *ttyname, const char *user, uid_t uid,
-    const char *host, struct sockaddr *addr);
-
-/*
- * Records that the user has logged out.  This does many thigs normally done
- * by login(1) or init.
- */
-void    record_logout(pid_t pid, const char *ttyname);
-
-/*------------ definitions for sshconnect.c ----------*/
-
-/*
- * Opens a TCP/IP connection to the remote server on the given host.  If port
- * is 0, the default port will be used.  If anonymous is zero, a privileged
- * port will be allocated to make the connection. This requires super-user
- * privileges if anonymous is false. Connection_attempts specifies the
- * maximum number of tries, one per second.  This returns true on success,
- * and zero on failure.  If the connection is successful, this calls
- * packet_set_connection for the connection.
- */
-int
-ssh_connect(const char *host, struct sockaddr_storage * hostaddr,
-    u_short port, int connection_attempts,
-    int anonymous, uid_t original_real_uid,
-    const char *proxy_command);
-
-/*
- * Starts a dialog with the server, and authenticates the current user on the
- * server.  This does not need any extra privileges.  The basic connection to
- * the server must already have been established before this is called. If
- * login fails, this function prints an error and never returns. This
- * initializes the random state, and leaves it initialized (it will also have
- * references from the packet module).
- */
-
-void
-ssh_login(int host_key_valid, RSA * host_key, const char *host,
-    struct sockaddr * hostaddr, uid_t original_real_uid);
-
-/*------------ Definitions for various authentication methods. -------*/
-
-/*
- * Tries to authenticate the user using the .rhosts file.  Returns true if
- * authentication succeeds.  If ignore_rhosts is non-zero, this will not
- * consider .rhosts and .shosts (/etc/hosts.equiv will still be used).
- */
-int     auth_rhosts(struct passwd * pw, const char *client_user);
-
-/*
- * Tries to authenticate the user using the .rhosts file and the host using
- * its host key.  Returns true if authentication succeeds.
- */
-int
-auth_rhosts_rsa(struct passwd * pw, const char *client_user, RSA* client_host_key);
-
-/*
- * Tries to authenticate the user using password.  Returns true if
- * authentication succeeds.
- */
-int     auth_password(struct passwd * pw, const char *password);
-
-/*
- * Performs the RSA authentication dialog with the client.  This returns 0 if
- * the client could not be authenticated, and 1 if authentication was
- * successful.  This may exit if there is a serious protocol violation.
- */
-int     auth_rsa(struct passwd * pw, BIGNUM * client_n);
-
-/*
- * Parses an RSA key (number of bits, e, n) from a string.  Moves the pointer
- * over the key.  Skips any whitespace at the beginning and at end.
- */
-int     auth_rsa_read_key(char **cpp, u_int *bitsp, BIGNUM * e, BIGNUM * n);
-
-/*
- * Returns the name of the machine at the other end of the socket.  The
- * returned string should be freed by the caller.
- */
-char   *get_remote_hostname(int socket);
-
-/*
- * Return the canonical name of the host in the other side of the current
- * connection (as returned by packet_get_connection).  The host name is
- * cached, so it is efficient to call this several times.
- */
-const char *get_canonical_hostname(void);
-
-/*
- * Returns the remote IP address as an ascii string.  The value need not be
- * freed by the caller.
- */
-const char *get_remote_ipaddr(void);
-
-/* Returns the port number of the peer of the socket. */
-int     get_peer_port(int sock);
-
-/* Returns the port number of the remote/local host. */
-int     get_remote_port(void);
-int	get_local_port(void);
-
-
-/*
- * Performs the RSA authentication challenge-response dialog with the client,
- * and returns true (non-zero) if the client gave the correct answer to our
- * challenge; returns zero if the client gives a wrong answer.
- */
-int     auth_rsa_challenge_dialog(RSA *pk);
-
-/*
- * Reads a passphrase from /dev/tty with echo turned off.  Returns the
- * passphrase (allocated with xmalloc).  Exits if EOF is encountered. If
- * from_stdin is true, the passphrase will be read from stdin instead.
- */
-char   *read_passphrase(const char *prompt, int from_stdin);
-
-
-/*------------ Definitions for logging. -----------------------*/
-
-/* Supported syslog facilities and levels. */
-typedef enum {
-	SYSLOG_FACILITY_DAEMON,
-	SYSLOG_FACILITY_USER,
-	SYSLOG_FACILITY_AUTH,
-#ifdef LOG_AUTHPRIV
-	SYSLOG_FACILITY_AUTHPRIV,
-#endif
-	SYSLOG_FACILITY_LOCAL0,
-	SYSLOG_FACILITY_LOCAL1,
-	SYSLOG_FACILITY_LOCAL2,
-	SYSLOG_FACILITY_LOCAL3,
-	SYSLOG_FACILITY_LOCAL4,
-	SYSLOG_FACILITY_LOCAL5,
-	SYSLOG_FACILITY_LOCAL6,
-	SYSLOG_FACILITY_LOCAL7
-}       SyslogFacility;
-
-typedef enum {
-	SYSLOG_LEVEL_QUIET,
-	SYSLOG_LEVEL_FATAL,
-	SYSLOG_LEVEL_ERROR,
-	SYSLOG_LEVEL_INFO,
-	SYSLOG_LEVEL_VERBOSE,
-	SYSLOG_LEVEL_DEBUG1,
-	SYSLOG_LEVEL_DEBUG2,
-	SYSLOG_LEVEL_DEBUG3
-}       LogLevel;
-/* Initializes logging. */
-void    log_init(char *av0, LogLevel level, SyslogFacility facility, int on_stderr);
-
-/* Logging implementation, depending on server or client */
-void    do_log(LogLevel level, const char *fmt, va_list args);
-
-/* name to facility/level */
-SyslogFacility log_facility_number(char *name);
-LogLevel log_level_number(char *name);
-
-/* Output a message to syslog or stderr */
-void    fatal(const char *fmt,...) __attribute__((format(printf, 1, 2)));
-void    error(const char *fmt,...) __attribute__((format(printf, 1, 2)));
-void    log(const char *fmt,...) __attribute__((format(printf, 1, 2)));
-void    verbose(const char *fmt,...) __attribute__((format(printf, 1, 2)));
-void    debug(const char *fmt,...) __attribute__((format(printf, 1, 2)));
-void    debug2(const char *fmt,...) __attribute__((format(printf, 1, 2)));
-void    debug3(const char *fmt,...) __attribute__((format(printf, 1, 2)));
-
-/* same as fatal() but w/o logging */
-void    fatal_cleanup(void);
-
-/*
- * Registers a cleanup function to be called by fatal()/fatal_cleanup()
- * before exiting. It is permissible to call fatal_remove_cleanup for the
- * function itself from the function.
- */
-void    fatal_add_cleanup(void (*proc) (void *context), void *context);
-
-/* Removes a cleanup function to be called at fatal(). */
-void    fatal_remove_cleanup(void (*proc) (void *context), void *context);
-
-/* ---- misc */
-
-/*
- * Expands tildes in the file name.  Returns data allocated by xmalloc.
- * Warning: this calls getpw*.
- */
-char   *tilde_expand_filename(const char *filename, uid_t my_uid);
-
-/* remove newline at end of string */
-char	*chop(char *s);
-
-/* return next token in configuration line */
-char	*strdelim(char **s);
-
-/* set filedescriptor to non-blocking */
-void	set_nonblock(int fd);
-
-/*
- * Performs the interactive session.  This handles data transmission between
- * the client and the program.  Note that the notion of stdin, stdout, and
- * stderr in this function is sort of reversed: this function writes to stdin
- * (of the child program), and reads from stdout and stderr (of the child
- * program).
- */
-void    server_loop(pid_t pid, int fdin, int fdout, int fderr);
-void    server_loop2(void);
-
-/* Client side main loop for the interactive session. */
-int     client_loop(int have_pty, int escape_char, int id);
-
-/* Linked list of custom environment strings (see auth-rsa.c). */
-struct envstring {
-	struct envstring *next;
-	char   *s;
-};
-
-/*
- * Ensure all of data on socket comes through. f==read || f==write
- */
-ssize_t	atomicio(ssize_t (*f)(), int fd, void *s, size_t n);
-
-#ifdef KRB4
-#include <krb.h>
-/*
- * Performs Kerberos v4 mutual authentication with the client. This returns 0
- * if the client could not be authenticated, and 1 if authentication was
- * successful.  This may exit if there is a serious protocol violation.
- */
-int     auth_krb4(const char *server_user, KTEXT auth, char **client);
-int     krb4_init(uid_t uid);
-void    krb4_cleanup_proc(void *ignore);
-int	auth_krb4_password(struct passwd * pw, const char *password);
-
-#ifdef AFS
-#include <kafs.h>
-
-/* Accept passed Kerberos v4 ticket-granting ticket and AFS tokens. */
-int     auth_kerberos_tgt(struct passwd * pw, const char *string);
-int     auth_afs_token(struct passwd * pw, const char *token_string);
-
-int     creds_to_radix(CREDENTIALS * creds, u_char *buf, size_t buflen);
-int     radix_to_creds(const char *buf, CREDENTIALS * creds);
-#endif				/* AFS */
-
-#endif				/* KRB4 */
-
-/* AF_UNSPEC or AF_INET or AF_INET6 */
-extern int IPv4or6;
-
 #endif				/* SSH_H */
--- a/ssh1.h
+++ b/ssh1.h
@ -0,0 +1,84 @@
+/*
+ * Author: Tatu Ylonen <ylo@cs.hut.fi>
+ * 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".
+ */
+
+/*
+ * Definition of message types.  New values can be added, but old values
+ * should not be removed or without careful consideration of the consequences
+ * for compatibility.  The maximum value is 254; value 255 is reserved for
+ * future extension.
+ */
+/* Message name */			/* msg code */	/* arguments */
+#define SSH_MSG_NONE				0	/* no message */
+#define SSH_MSG_DISCONNECT			1	/* cause (string) */
+#define SSH_SMSG_PUBLIC_KEY			2	/* ck,msk,srvk,hostk */
+#define SSH_CMSG_SESSION_KEY			3	/* key (BIGNUM) */
+#define SSH_CMSG_USER				4	/* user (string) */
+#define SSH_CMSG_AUTH_RHOSTS			5	/* user (string) */
+#define SSH_CMSG_AUTH_RSA			6	/* modulus (BIGNUM) */
+#define SSH_SMSG_AUTH_RSA_CHALLENGE		7	/* int (BIGNUM) */
+#define SSH_CMSG_AUTH_RSA_RESPONSE		8	/* int (BIGNUM) */
+#define SSH_CMSG_AUTH_PASSWORD			9	/* pass (string) */
+#define SSH_CMSG_REQUEST_PTY		        10	/* TERM, tty modes */
+#define SSH_CMSG_WINDOW_SIZE		        11	/* row,col,xpix,ypix */
+#define SSH_CMSG_EXEC_SHELL			12	/* */
+#define SSH_CMSG_EXEC_CMD			13	/* cmd (string) */
+#define SSH_SMSG_SUCCESS			14	/* */
+#define SSH_SMSG_FAILURE			15	/* */
+#define SSH_CMSG_STDIN_DATA			16	/* data (string) */
+#define SSH_SMSG_STDOUT_DATA			17	/* data (string) */
+#define SSH_SMSG_STDERR_DATA			18	/* data (string) */
+#define SSH_CMSG_EOF				19	/* */
+#define SSH_SMSG_EXITSTATUS			20	/* status (int) */
+#define SSH_MSG_CHANNEL_OPEN_CONFIRMATION	21	/* channel (int) */
+#define SSH_MSG_CHANNEL_OPEN_FAILURE		22	/* channel (int) */
+#define SSH_MSG_CHANNEL_DATA			23	/* ch,data (int,str) */
+#define SSH_MSG_CHANNEL_CLOSE			24	/* channel (int) */
+#define SSH_MSG_CHANNEL_CLOSE_CONFIRMATION	25	/* channel (int) */
+/*      SSH_CMSG_X11_REQUEST_FORWARDING         26         OBSOLETE */
+#define SSH_SMSG_X11_OPEN			27	/* channel (int) */
+#define SSH_CMSG_PORT_FORWARD_REQUEST		28	/* p,host,hp (i,s,i) */
+#define SSH_MSG_PORT_OPEN			29	/* ch,h,p (i,s,i) */
+#define SSH_CMSG_AGENT_REQUEST_FORWARDING	30	/* */
+#define SSH_SMSG_AGENT_OPEN			31	/* port (int) */
+#define SSH_MSG_IGNORE				32	/* string */
+#define SSH_CMSG_EXIT_CONFIRMATION		33	/* */
+#define SSH_CMSG_X11_REQUEST_FORWARDING		34	/* proto,data (s,s) */
+#define SSH_CMSG_AUTH_RHOSTS_RSA		35	/* user,mod (s,mpi) */
+#define SSH_MSG_DEBUG				36	/* string */
+#define SSH_CMSG_REQUEST_COMPRESSION		37	/* level 1-9 (int) */
+#define SSH_CMSG_MAX_PACKET_SIZE		38	/* size 4k-1024k (int) */
+#define SSH_CMSG_AUTH_TIS			39	/* we use this for s/key */
+#define SSH_SMSG_AUTH_TIS_CHALLENGE		40	/* challenge (string) */
+#define SSH_CMSG_AUTH_TIS_RESPONSE		41	/* response (string) */
+#define SSH_CMSG_AUTH_KERBEROS			42	/* (KTEXT) */
+#define SSH_SMSG_AUTH_KERBEROS_RESPONSE		43	/* (KTEXT) */
+#define SSH_CMSG_HAVE_KERBEROS_TGT		44	/* credentials (s) */
+#define SSH_CMSG_HAVE_AFS_TOKEN			65	/* token (s) */
+
+/*
+ * Authentication methods.  New types can be added, but old types should not
+ * be removed for compatibility.  The maximum allowed value is 31.
+ */
+#define SSH_AUTH_RHOSTS		1
+#define SSH_AUTH_RSA		2
+#define SSH_AUTH_PASSWORD	3
+#define SSH_AUTH_RHOSTS_RSA	4
+#define SSH_AUTH_TIS		5
+#define SSH_AUTH_KERBEROS	6
+#define SSH_PASS_KERBEROS_TGT	7
+				/* 8 to 15 are reserved */
+#define SSH_PASS_AFS_TOKEN	21
+
+/* Protocol flags.  These are bit masks. */
+#define SSH_PROTOFLAG_SCREEN_NUMBER	1	/* X11 forwarding includes screen */
+#define SSH_PROTOFLAG_HOST_IN_FWD_OPEN	2	/* forwarding opens contain host */
+
--- a/sshconnect.c
+++ b/sshconnect.c
@ -13,23 +13,24 @@
 */

 #include "includes.h"
-RCSID("$OpenBSD: sshconnect.c,v 1.90 2001/01/13 18:32:50 markus Exp $");
+RCSID("$OpenBSD: sshconnect.c,v 1.91 2001/01/21 19:05:59 markus Exp $");

 #include <openssl/bn.h>
-#include <openssl/dsa.h>
-#include <openssl/rsa.h>

+#include "ssh.h"
 #include "xmalloc.h"
 #include "rsa.h"
-#include "ssh.h"
 #include "buffer.h"
 #include "packet.h"
 #include "uidswap.h"
 #include "compat.h"
-#include "readconf.h"
 #include "key.h"
 #include "sshconnect.h"
 #include "hostfile.h"
+#include "log.h"
+#include "readconf.h"
+#include "atomicio.h"
+#include "misc.h"

 char *client_version_string = NULL;
 char *server_version_string = NULL;
@ -37,6 +38,9 @@ char *server_version_string = NULL;
 extern Options options;
 extern char *__progname;

+/* AF_UNSPEC or AF_INET or AF_INET6 */
+extern int IPv4or6;
+
 /*
 * Connect to the given ssh server using a proxy command.
 */
--- a/sshconnect.h
+++ b/sshconnect.h
@ -23,6 +23,34 @@
 */
 #ifndef SSHCONNECT_H
 #define SSHCONNECT_H
+/*
+ * Opens a TCP/IP connection to the remote server on the given host.  If port
+ * is 0, the default port will be used.  If anonymous is zero, a privileged
+ * port will be allocated to make the connection. This requires super-user
+ * privileges if anonymous is false. Connection_attempts specifies the
+ * maximum number of tries, one per second.  This returns true on success,
+ * and zero on failure.  If the connection is successful, this calls
+ * packet_set_connection for the connection.
+ */
+int
+ssh_connect(const char *host, struct sockaddr_storage * hostaddr,
+    u_short port, int connection_attempts,
+    int anonymous, uid_t original_real_uid,
+    const char *proxy_command);
+
+/*
+ * Starts a dialog with the server, and authenticates the current user on the
+ * server.  This does not need any extra privileges.  The basic connection to
+ * the server must already have been established before this is called. If
+ * login fails, this function prints an error and never returns. This
+ * initializes the random state, and leaves it initialized (it will also have
+ * references from the packet module).
+ */
+
+void
+ssh_login(int host_key_valid, RSA * host_key, const char *host,
+    struct sockaddr * hostaddr, uid_t original_real_uid);
+

 void
 check_host_key(char *host, struct sockaddr *hostaddr, Key *host_key,
--- a/sshconnect1.c
+++ b/sshconnect1.c
@ -13,25 +13,36 @@
 */

 #include "includes.h"
-RCSID("$OpenBSD: sshconnect1.c,v 1.16 2001/01/18 17:00:00 markus Exp $");
+RCSID("$OpenBSD: sshconnect1.c,v 1.18 2001/01/21 19:06:00 markus Exp $");

 #include <openssl/bn.h>
-#include <openssl/dsa.h>
-#include <openssl/rsa.h>
 #include <openssl/evp.h>

+#ifdef KRB4
+#include <krb.h>
+#include "radix.h"
+#endif
+#ifdef AFS
+#include <kafs.h>
+#endif
+
+#include "ssh.h"
+#include "ssh1.h"
 #include "xmalloc.h"
 #include "rsa.h"
-#include "ssh.h"
 #include "buffer.h"
 #include "packet.h"
 #include "mpaux.h"
 #include "uidswap.h"
+#include "log.h"
 #include "readconf.h"
 #include "key.h"
 #include "authfd.h"
 #include "sshconnect.h"
 #include "authfile.h"
+#include "readpass.h"
+#include "cipher.h"
+#include "canohost.h"

 /* Session id for the current session. */
 u_char session_id[16];
--- a/sshconnect2.c
+++ b/sshconnect2.c
@ -23,25 +23,23 @@
 */

 #include "includes.h"
-RCSID("$OpenBSD: sshconnect2.c,v 1.35 2001/01/04 22:21:26 markus Exp $");
+RCSID("$OpenBSD: sshconnect2.c,v 1.37 2001/01/21 19:06:00 markus Exp $");

 #include <openssl/bn.h>
-#include <openssl/rsa.h>
-#include <openssl/dsa.h>
 #include <openssl/md5.h>
 #include <openssl/dh.h>
 #include <openssl/hmac.h>

 #include "ssh.h"
+#include "ssh2.h"
 #include "xmalloc.h"
 #include "rsa.h"
 #include "buffer.h"
 #include "packet.h"
 #include "uidswap.h"
 #include "compat.h"
-#include "readconf.h"
 #include "bufaux.h"
-#include "ssh2.h"
+#include "cipher.h"
 #include "kex.h"
 #include "myproposal.h"
 #include "key.h"
@ -50,6 +48,9 @@ RCSID("$OpenBSD: sshconnect2.c,v 1.35 2001/01/04 22:21:26 markus Exp $");
 #include "cli.h"
 #include "dispatch.h"
 #include "authfd.h"
+#include "log.h"
+#include "readconf.h"
+#include "readpass.h"

 void ssh_dh1_client(Kex *, char *, struct sockaddr *, Buffer *, Buffer *);
 void ssh_dhgex_client(Kex *, char *, struct sockaddr *, Buffer *, Buffer *);
@ -332,8 +333,7 @@ ssh_dhgex_client(Kex *kex, char *host, struct sockaddr *hostaddr,
 	if ((g = BN_new()) == NULL)
 		fatal("BN_new");
 	packet_get_bignum2(g, &dlen);
-	if ((dh = dh_new_group(g, p)) == NULL)
-		fatal("dh_new_group");
+	dh = dh_new_group(g, p);

 	dh_gen_key(dh);

--- a/sshd.8
+++ b/sshd.8
@ -34,7 +34,7 @@
 .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 .\"
-.\" $OpenBSD: sshd.8,v 1.82 2001/01/18 16:20:22 markus Exp $
+.\" $OpenBSD: sshd.8,v 1.83 2001/01/19 16:48:14 markus Exp $
 .Dd September 25, 1999
 .Dt SSHD 8
 .Os
@ -394,7 +394,7 @@ Specifies the file containing the private host keys (default
 used by SSH protocol versions 1 and 2.
 Note that
 .Nm
-if this file is group/world-accessible.
+will refuse to use a file if it is group/world-accessible.
 It is possible to have multiple host key files.
 .Dq rsa1
 keys are used for version 1 and
--- a/sshd.c
+++ b/sshd.c
@ -40,32 +40,36 @@
 */

 #include "includes.h"
-RCSID("$OpenBSD: sshd.c,v 1.153 2001/01/19 12:45:27 markus Exp $");
+RCSID("$OpenBSD: sshd.c,v 1.155 2001/01/21 19:06:00 markus Exp $");

+#include <openssl/dh.h>
+#include <openssl/bn.h>
+#include <openssl/hmac.h>
+
+#include "ssh.h"
+#include "ssh1.h"
+#include "ssh2.h"
 #include "xmalloc.h"
 #include "rsa.h"
-#include "ssh.h"
 #include "pty.h"
 #include "packet.h"
 #include "mpaux.h"
+#include "log.h"
 #include "servconf.h"
 #include "uidswap.h"
 #include "compat.h"
 #include "buffer.h"
-
-#include "ssh2.h"
-#include <openssl/dh.h>
-#include <openssl/bn.h>
-#include <openssl/hmac.h>
+#include "cipher.h"
 #include "kex.h"
-#include <openssl/dsa.h>
-#include <openssl/rsa.h>
 #include "key.h"
 #include "dh.h"
-
-#include "auth.h"
 #include "myproposal.h"
 #include "authfile.h"
+#include "pathnames.h"
+#include "atomicio.h"
+#include "canohost.h"
+#include "auth.h"
+#include "misc.h"

 #ifdef LIBWRAP
 #include <tcpd.h>
@ -88,7 +92,7 @@ char *__progname;
 ServerOptions options;

 /* Name of the server configuration file. */
-char *config_file_name = SERVER_CONFIG_FILE;
+char *config_file_name = _PATH_SERVER_CONFIG_FILE;

 /*
 * Flag indicating whether IPv4 or IPv6.  This can be set on the command line.
@ -643,7 +647,7 @@ main(int ac, char **av)
 			fprintf(stderr, "sshd version %s\n", SSH_VERSION);
 			fprintf(stderr, "Usage: %s [options]\n", __progname);
 			fprintf(stderr, "Options:\n");
-			fprintf(stderr, "  -f file    Configuration file (default %s)\n", SERVER_CONFIG_FILE);
+			fprintf(stderr, "  -f file    Configuration file (default %s)\n", _PATH_SERVER_CONFIG_FILE);
 			fprintf(stderr, "  -d         Debugging mode (multiple -d means more debugging)\n");
 			fprintf(stderr, "  -i         Started from inetd\n");
 			fprintf(stderr, "  -D         Do not fork into daemon mode\n");
@ -653,7 +657,7 @@ main(int ac, char **av)
 			fprintf(stderr, "  -g seconds Grace period for authentication (default: 600)\n");
 			fprintf(stderr, "  -b bits    Size of server RSA key (default: 768 bits)\n");
 			fprintf(stderr, "  -h file    File from which to read host key (default: %s)\n",
-			    HOST_KEY_FILE);
+			    _PATH_HOST_KEY_FILE);
 			fprintf(stderr, "  -u len     Maximum hostname length for utmp recording\n");
 			fprintf(stderr, "  -4         Use IPv4 only\n");
 			fprintf(stderr, "  -6         Use IPv6 only\n");
--- a/tildexpand.c
+++ b/tildexpand.c
@ -11,10 +11,10 @@
 */

 #include "includes.h"
-RCSID("$OpenBSD: tildexpand.c,v 1.9 2000/12/19 23:17:59 markus Exp $");
+RCSID("$OpenBSD: tildexpand.c,v 1.10 2001/01/21 19:06:01 markus Exp $");

 #include "xmalloc.h"
-#include "ssh.h"
+#include "log.h"

 /*
 * Expands tildes in the file name.  Returns data allocated by xmalloc.
--- a/tildexpand.h
+++ b/tildexpand.h
@ -0,0 +1,17 @@
+/*
+ * Author: Tatu Ylonen <ylo@cs.hut.fi>
+ * 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".
+ */
+
+/*
+ * Expands tildes in the file name.  Returns data allocated by xmalloc.
+ * Warning: this calls getpw*.
+ */
+char   *tilde_expand_filename(const char *filename, uid_t my_uid);
--- a/ttymodes.c
+++ b/ttymodes.c
@ -15,10 +15,11 @@
 */

 #include "includes.h"
-RCSID("$OpenBSD: ttymodes.c,v 1.8 2000/09/07 20:27:55 deraadt Exp $");
+RCSID("$OpenBSD: ttymodes.c,v 1.10 2001/01/21 19:06:01 markus Exp $");

 #include "packet.h"
-#include "ssh.h"
+#include "log.h"
+#include "ssh1.h"

 #define TTY_OP_END	0
 #define TTY_OP_ISPEED	192	/* int follows */
--- a/uidswap.c
+++ b/uidswap.c
@ -12,9 +12,9 @@
 */

 #include "includes.h"
-RCSID("$OpenBSD: uidswap.c,v 1.12 2000/12/29 10:48:56 markus Exp $");
+RCSID("$OpenBSD: uidswap.c,v 1.13 2001/01/21 19:06:01 markus Exp $");

-#include "ssh.h"
+#include "log.h"
 #include "uidswap.h"

 /*
--- a/xmalloc.c
+++ b/xmalloc.c
@ -13,9 +13,10 @@
 */

 #include "includes.h"
-RCSID("$OpenBSD: xmalloc.c,v 1.8 2000/09/07 20:27:55 deraadt Exp $");
+RCSID("$OpenBSD: xmalloc.c,v 1.9 2001/01/21 19:06:02 markus Exp $");

-#include "ssh.h"
+#include "xmalloc.h"
+#include "log.h"

 void *
 xmalloc(size_t size)