vendor/openssl/0.9.7c-patch1

8 files changed, 0 insertions, 1789 deletions

diff --git a/crypto/openssl/demos/easy_tls/Makefile b/crypto/openssl/demos/easy_tls/Makefile
deleted file mode 100644
index 208070074c02..000000000000
--- a/crypto/openssl/demos/easy_tls/Makefile
+++ /dev/null
@@ -1,123 +0,0 @@
-# Makefile for easy-tls example application (rudimentary client and server)
-# $Id: Makefile,v 1.2 2001/09/18 09:15:40 bodo Exp $
-
-SOLARIS_CFLAGS=-Wall -pedantic -g -O2
-SOLARIS_LIBS=-lxnet
-
-LINUX_CFLAGS=-Wall -pedantic -g -O2
-LINUX_LIBS=
-
-
-auto-all:
-	case `uname -s` in \
-	SunOS) echo Using SunOS configuration; \
-	  make SYSCFLAGS="$(SOLARIS_CFLAGS)" SYSLIBS="$(SOLARIS_LIBS)" all;; \
-	Linux) echo Using Linux configuration; \
-	  make SYSCFLAGS="$(LINUX_CFLAGS)" SYSLIBS="$(LINUX_LIBS)" all;; \
-	*) echo "unknown system"; exit 1;; \
-	esac
-
-all: test TAGS
-
-# For adapting this Makefile to a different system, only the following
-# definitions should need customizing:
-
-OPENSSLDIR=../..
-CC=gcc
-
-SYSCFLAGS=whatever
-SYSLIBS=whatever
-
-
-#############################################################################
-#
-# SSLeay/OpenSSL imports
-#
-# OPENSSLDIR (set above) can be either the directory where OpenSSL is
-# installed or the directory where it was compiled.
-
-# We rely on having a new OpenSSL release where include files
-# have names like <openssl/ssl.h> (not just <ssl.h>).
-OPENSSLINCLUDES=-I$(OPENSSLDIR)/include
-
-# libcrypto.a and libssl.a are directly in $(OPENSSLDIR) if this is
-# the compile directory, or in $(OPENSSLDIR)/lib if we use an installed
-# library.  With the following definition, we can handle either case.
-OPENSSLLIBS=-L$(OPENSSLDIR) -L$(OPENSSLDIR)/lib -lssl -lcrypto
-
-
-#############################################################################
-#
-# Stuff for handling the source files
-#
-
-SOURCES=easy-tls.c test.c
-HEADERS=easy-tls.h test.h
-DOCSandEXAMPLESetc=Makefile cert.pem cacerts.pem
-EVERYTHING=$(SOURCES) $(HEADERS) $(DOCSandEXAMPLESetc)
-
-ls: ls-l
-ls-l:
-	ls -l $(EVERYTHING)
-# For RCS:
-tag:
-	-rcs -n_`date +%y%m%d`: $(EVERYTHING)
-	rcs -nMYTAG $(EVERYTHING)
-	rcs -nMYTAG: $(EVERYTHING)
-diff:
-	-rcsdiff -rMYTAG -u $(EVERYTHING)
-today:
-	-rcsdiff -r_`date +%y%m%d` -u $(EVERYTHING)
-ident:
-	for a in $(EVERYTHING); do ident $$a; done
-
-# Distribution .tar:
-easy-tls.tar.gz: $(EVERYTHING)
-	tar cvf - $(EVERYTHING) | \
-	gzip -9 > easy-tls.tar.gz
-
-# Working .tar:
-tls.tgz: $(EVERYTHING)
-	tar cfv - `find . -type f -a ! -name '*.tgz' -a ! -name '*.tar.gz'` | \
-	gzip -9 > tls.tgz
-
-# For emacs:
-etags: TAGS
-TAGS: $(SOURCES) $(HEADERS)
-	-etags $(SOURCES) $(HEADERS)
-
-
-#############################################################################
-#
-# Compilation
-#
-# The following definitions are system dependent (and hence defined
-# at the beginning of this Makefile, where they are more easily found):
-
-### CC=gcc
-### SYSCFLAGS=-Wall -pedantic -g -O2
-### SYSLIBS=-lxnet
-
-EXTRACFLAGS=-DTLS_APP=\"test.h\"
-# EXTRACFLAGS=-DTLS_APP=\"test.h\" -DDEBUG_TLS
-
-#
-# The rest shouldn't need to be touched.
-#
-LDFLAGS=$(SYSLIBS) $(OPENSSLLIBS)
-INCLUDES=$(OPENSSLINCLUDES)
-CFLAGS=$(SYSCFLAGS) $(EXTRACFLAGS) $(INCLUDES)
-
-OBJS=easy-tls.o test.o
-
-clean:
-	@rm -f test
-	@rm -f TAGS
-	@rm -f *.o
-	@rm -f core
-
-test: $(OBJS)
-	$(CC) $(OBJS) $(LDFLAGS) -o test
-
-test.o: $(HEADERS)
-easy-tls.o: $(HEADERS)
diff --git a/crypto/openssl/demos/easy_tls/README b/crypto/openssl/demos/easy_tls/README
deleted file mode 100644
index 816a58009c86..000000000000
--- a/crypto/openssl/demos/easy_tls/README
+++ /dev/null
@@ -1,65 +0,0 @@
-easy_tls - generic SSL/TLS proxy
-========
-
-(... and example for non-blocking SSL/TLS I/O multiplexing.)
-
-
-  easy_tls.c, easy_tls.h:
-
-     Small generic SSL/TLS proxy library: With a few function calls,
-     an application socket will be replaced by a pipe handled by a
-     separate SSL/TLS proxy process.  This allows easily adding
-     SSL/TLS support to many programs not originally designed for it.
-
-     [Actually easy_tls.c is not a proper library: Customization
-     requires defining preprocessor macros while compiling it.
-     This is quite confusing, so I'll probably change it.]
-
-     These files may be used under the OpenSSL license.
-
-
-
-  test.c, test.h, Makefile, cert.pem, cacerts.pem:
-
-     Rudimentary example program using the easy_tls library, and
-     example key and certificates for it.  Usage examples:
-
-       $ ./test 8443     # create server listening at port 8443
-       $ ./test 127.0.0.1 8443  # create client, connect to port 8443
-                                # at IP address 127.0.0.1
-
-     'test' will not automatically do SSL/TLS, or even read or write
-     data -- it must be told to do so on input lines starting
-     with a command letter.  'W' means write a line, 'R' means
-     read a line, 'C' means close the connection, 'T' means
-     start an SSL/TLS proxy.  E.g. (user input tagged with '*'):
-
-     * R
-       <<< 220 mail.example.net
-     * WSTARTTLS
-       >>> STARTTLS
-     * R
-       <<< 220 Ready to start TLS
-     * T
-       test_process_init(fd = 3, client_p = 1, apparg = (nil))
-       +++ `E:self signed certificate in certificate chain'
-       +++ `<... certificate info ...>'
-     * WHELO localhost
-       >>> HELO localhost
-       R
-       <<< 250 mail.example.net
-
-     You can even do SSL/TLS over SSL/TLS over SSL/TLS ... by using
-     'T' multiple times.  I have no idea why you would want to though.
-
-
-This code is rather old.  When I find time I will update anything that
-should be changed, and improve code comments.  To compile the sample
-program 'test' on platforms other then Linux or Solaris, you will have
-to edit the Makefile.
-
-As noted above, easy_tls.c will be changed to become a library one
-day, which means that future revisions will not be fully compatible to
-the current version.
-
-Bodo Möller <bodo@openssl.org>
diff --git a/crypto/openssl/demos/easy_tls/cacerts.pem b/crypto/openssl/demos/easy_tls/cacerts.pem
deleted file mode 100644
index acc70baf19dd..000000000000
--- a/crypto/openssl/demos/easy_tls/cacerts.pem
+++ /dev/null
@@ -1,18 +0,0 @@
-$Id: cacerts.pem,v 1.1 2001/09/17 19:06:57 bodo Exp $
-
-issuer= /C=AU/ST=Queensland/O=CryptSoft Pty Ltd/CN=Test PCA (1024 bit)
-subject=/C=AU/ST=Queensland/O=CryptSoft Pty Ltd/CN=Test CA (1024 bit)
------BEGIN CERTIFICATE-----
-MIICJjCCAY8CAQAwDQYJKoZIhvcNAQEEBQAwXDELMAkGA1UEBhMCQVUxEzARBgNV
-BAgTClF1ZWVuc2xhbmQxGjAYBgNVBAoTEUNyeXB0U29mdCBQdHkgTHRkMRwwGgYD
-VQQDExNUZXN0IFBDQSAoMTAyNCBiaXQpMB4XDTk3MDYwOTEzNTc0M1oXDTAxMDYw
-OTEzNTc0M1owWzELMAkGA1UEBhMCQVUxEzARBgNVBAgTClF1ZWVuc2xhbmQxGjAY
-BgNVBAoTEUNyeXB0U29mdCBQdHkgTHRkMRswGQYDVQQDExJUZXN0IENBICgxMDI0
-IGJpdCkwgZ8wDQYJKoZIhvcNAQEBBQADgY0AMIGJAoGBAKO7o8t116VP6cgybTsZ
-DCZhr95nYlZuya3aCi1IKoztqwWnjbmDFIriOqGFPrZQ+moMETC9D59iRW/dFXSv
-1F65ka/XY2hLh9exCCo7XuUcDs53Qp3bI3AmMqHjgzE8oO3ajyJAzJkTTOUecQU2
-mw/gI4tMM0LqWMQS7luTy4+xAgMBAAEwDQYJKoZIhvcNAQEEBQADgYEAM7achv3v
-hLQJcv/65eGEpBXM40ZDVoFQFFJWaY5p883HTqLB1x4FdzsXHH0QKBTcKpWwqyu4
-YDm3fb8oDugw72bCzfyZK/zVZPR/hVlqI/fvU109Qoc+7oPvIXWky71HfcK6ZBCA
-q30KIqGM/uoM60INq97qjDmCJapagcNBGQs=
------END CERTIFICATE-----
diff --git a/crypto/openssl/demos/easy_tls/cert.pem b/crypto/openssl/demos/easy_tls/cert.pem
deleted file mode 100644
index 364fe10d5b9b..000000000000
--- a/crypto/openssl/demos/easy_tls/cert.pem
+++ /dev/null
@@ -1,31 +0,0 @@
-$Id: cert.pem,v 1.1 2001/09/17 19:06:57 bodo Exp $
-
-Example certificate and key.
-
------BEGIN CERTIFICATE-----
-MIIB1jCCAT8CAQEwDQYJKoZIhvcNAQEEBQAwRTELMAkGA1UEBhMCQVUxEzARBgNV
-BAgTClNvbWUtU3RhdGUxITAfBgNVBAoTGEludGVybmV0IFdpZGdpdHMgUHR5IEx0
-ZDAeFw05OTA1MDEwMTI2MzVaFw05OTA1MzEwMTI2MzVaMCIxCzAJBgNVBAYTAkRF
-MRMwEQYDVQQDEwpUZXN0c2VydmVyMIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKB
-gQD6I3oDKiexwwlkzjar69AIFnVUaG85LtCege2R+CtIDlkQYw68/8MbT3ou0pdF
-AcL9IGiYY3Y0SHM9PqF00RO1MCtNpqTnF3ScLpbmggGjKilmWYn2ai7emdjMjXVL
-tzWW2xGgIGATWQN32KgfJng4jXi1UjEiyLhkw0Zf1I/ggwIDAQABMA0GCSqGSIb3
-DQEBBAUAA4GBAMgM+sbAk8DfjSfa+Rf2gcGXmbrvZAzKzC+5RU3kaq/NyxIXAGco
-9dZjozzWfN/xuGup5boFk+KrP+xdgsaqGHsyzlgEoqz4ekqLjQeVbnoj339hVFU9
-MhPi6JULPxjXKumjfX2LLNkikW5puz8Df3UiX0EiaJvd7EwP8J75tiUT
------END CERTIFICATE-----
------BEGIN RSA PRIVATE KEY-----
-MIICXQIBAAKBgQD6I3oDKiexwwlkzjar69AIFnVUaG85LtCege2R+CtIDlkQYw68
-/8MbT3ou0pdFAcL9IGiYY3Y0SHM9PqF00RO1MCtNpqTnF3ScLpbmggGjKilmWYn2
-ai7emdjMjXVLtzWW2xGgIGATWQN32KgfJng4jXi1UjEiyLhkw0Zf1I/ggwIDAQAB
-AoGANST8c1etf1MU19oIO5aqaE19OCXIG7oakNLCCtVTPMfvnE+vffBJH7BPIUuU
-4BBzwRv1nQrkvk72TPjVjOAu81B1SStKQueun2flVuYxp9NyupNWCBley4QdohlP
-I92ml2tzTSPmNIoA6jdGyNzFcGchapRRmejsC39F1RUbHQECQQD9KX81Wt8ZOrri
-dWiEXja1L3X8Bkb9vvUjVMQDTJJPxBJjehC6eurgE6PP6SJD5p/f3RHPCcLr8tSM
-D4P/OpKhAkEA/PFNlhIZUDKK6aTvG2mn7qQ5phbadOoyN1Js3ttWG5OMOZ6b/QlC
-Wvp84h44506BIlv+Tg2YAI0AdBUrf7oEowJAM4joAVd/ROaEtqbJ4PBA2L9RmD06
-5FqkEk4mHLnQqvYx/BgUIbH18ClvVlqSBBqFfw/EmU3WZSuogt6Bs0ocIQJBAOxB
-AoPiYcxbeQ5kZIVJOXaX49SzUdaUDNVJYrEBUzsspHQJJo/Avz606kJVkjbSR6Ft
-JWmIHuqcyMikIV4KxFsCQQCU2evoVjVsqkkbHi7W28f73PGBsyu0KIwlK7nu4h08
-Daf7TAI+A6jW/WRUsJ6dFhUYi7/Jvkcdrlnbgm2fxziX
------END RSA PRIVATE KEY-----
diff --git a/crypto/openssl/demos/easy_tls/easy-tls.c b/crypto/openssl/demos/easy_tls/easy-tls.c
deleted file mode 100644
index 9c1d98293960..000000000000
--- a/crypto/openssl/demos/easy_tls/easy-tls.c
+++ /dev/null
@@ -1,1240 +0,0 @@
-/* -*- Mode: C; c-file-style: "bsd" -*- */
-/*
- * easy-tls.c -- generic TLS proxy.
- * $Id: easy-tls.c,v 1.2.2.2 2002/03/05 09:06:57 bodo Exp $
- */
-/*
- (c) Copyright 1999 Bodo Moeller.  All rights reserved.
-
- This is free software; you can redistributed and/or modify it
- unter the terms of either
-   -  the GNU General Public License as published by the
-      Free Software Foundation, version 1, or (at your option)
-      any later version,
- or
-   -  the following license:
-*/
-/*
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that each of the following
- * conditions is met:
- *
- * 1. Redistributions qualify as "freeware" or "Open Source Software" under
- *    one of the following terms:
- * 
- *    (a) Redistributions are made at no charge beyond the reasonable cost of
- *        materials and delivery.
- * 
- *    (b) Redistributions are accompanied by a copy of the Source Code
- *        or by an irrevocable offer to provide a copy of the Source Code
- *        for up to three years at the cost of materials and delivery.
- *        Such redistributions must allow further use, modification, and
- *        redistribution of the Source Code under substantially the same
- *        terms as this license.
- *
- * 2. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer. 
- *
- * 3. 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.
- *
- * 4. All advertising materials mentioning features or use of this
- *    software must display the following acknowledgment:
- *    "This product includes software developed by Bodo Moeller."
- *    (If available, substitute umlauted o for oe.)
- *
- * 5. Redistributions of any form whatsoever must retain the following
- *    acknowledgment:
- *    "This product includes software developed by Bodo Moeller."
- *
- * THIS SOFTWARE IS PROVIDED BY BODO MOELLER ``AS IS'' AND ANY
- * EXPRESSED 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 BODO MOELLER OR
- * HIS CONTRIBUTORS 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.
- */
-/*
- * Attribution for OpenSSL library:
- *
- * This product includes cryptographic software written by Eric Young
- * (eay@cryptsoft.com).  This product includes software written by Tim
- * Hudson (tjh@cryptsoft.com).
- * This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit. (http://www.openssl.org/)
- */
-
-static char const rcsid[] =
-"$Id: easy-tls.c,v 1.2.2.2 2002/03/05 09:06:57 bodo Exp $";
-
-#include <assert.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <limits.h>
-#include <stdarg.h>
-#include <stdio.h>
-#include <string.h>
-#include <sys/select.h>
-#include <sys/socket.h>
-#include <sys/stat.h>
-#include <sys/time.h>
-#include <sys/types.h>
-#include <sys/utsname.h>
-#include <unistd.h>
-
-#include <openssl/crypto.h>
-#include <openssl/dh.h>
-#include <openssl/dsa.h>
-#include <openssl/err.h>
-#include <openssl/evp.h>
-#include <openssl/opensslv.h>
-#include <openssl/pem.h>
-#include <openssl/rand.h>
-#ifndef NO_RSA
- #include <openssl/rsa.h>
-#endif
-#include <openssl/ssl.h>
-#include <openssl/x509.h>
-#include <openssl/x509_vfy.h>
-
-#if OPENSSL_VERSION_NUMBER < 0x00904000L /* 0.9.4-dev */
-# error "This program needs OpenSSL 0.9.4 or later."
-#endif
-
-#include "easy-tls.h" /* include after <openssl/ssl.h> if both are needed */
-
-#if TLS_INFO_SIZE > PIPE_BUF
-# if PIPE_BUF < 512
-#  error "PIPE_BUF < 512" /* non-POSIX */
-# endif
-# error "TLS_INFO_SIZE > PIPE_BUF"
-#endif
-
-/*****************************************************************************/
-
-#ifdef TLS_APP
-# include TLS_APP
-#endif
-
-/* Applications can define:
- *   TLS_APP_PROCESS_INIT -- void ...(int fd, int client_p, void *apparg)
- *   TLS_CUMULATE_ERRORS 
- *   TLS_ERROR_BUFSIZ
- *   TLS_APP_ERRFLUSH -- void ...(int child_p, char *, size_t, void *apparg)
- */
-
-#ifndef TLS_APP_PROCESS_INIT
-# define TLS_APP_PROCESS_INIT(fd, client_p, apparg) ((void) 0)
-#endif
-
-#ifndef TLS_ERROR_BUFSIZ
-# define TLS_ERROR_BUFSIZ (10*160)
-#endif
-#if TLS_ERROR_BUFSIZ < 2 /* {'\n',0} */
-# error "TLS_ERROR_BUFSIZE is too small."
-#endif
-
-#ifndef TLS_APP_ERRFLUSH
-# define TLS_APP_ERRFLUSH tls_app_errflush
-static void
-tls_app_errflush(int child_p, char *errbuf, size_t num, void *apparg)
-{
-    fputs(errbuf, stderr);
-}
-#endif
-
-/*****************************************************************************/
-
-#ifdef DEBUG_TLS
-# define DEBUG_MSG(x) fprintf(stderr,"  %s\n",x)
-# define DEBUG_MSG2(x,y) fprintf(stderr, "  %s: %d\n",x,y)
-static int tls_loop_count = 0;
-static int tls_select_count = 0;
-#else
-# define DEBUG_MSG(x) (void)0
-# define DEBUG_MSG2(x,y) (void)0
-#endif
-
-static void tls_rand_seed_uniquely(void);
-static void tls_proxy(int clear_fd, int tls_fd, int info_fd, SSL_CTX *ctx, int client_p);
-static int tls_socket_nonblocking(int fd);
-
-static int tls_child_p = 0;
-static void *tls_child_apparg;
-
-
-struct tls_start_proxy_args
-tls_start_proxy_defaultargs(void)
-{
-    struct tls_start_proxy_args ret;
-
-    ret.fd = -1;
-    ret.client_p = -1;
-    ret.ctx = NULL;
-    ret.pid = NULL;
-    ret.infofd = NULL;
-    
-    return ret;
-}
-
-/* Slice in TLS proxy process at fd.
- * Return value:
- *   0    ok  (*pid is set to child's PID if pid != NULL),
- *   < 0  look at errno
- *   > 0  other error
- *   (return value encodes place of error)
- *
- */
-int
-tls_start_proxy(struct tls_start_proxy_args a, void *apparg)
-{
-    int fds[2] = {-1, -1};
-    int infofds[2] = {-1, -1};
-    int r, getfd, getfl;
-    int ret;
-
-    DEBUG_MSG2("tls_start_proxy fd", a.fd);
-    DEBUG_MSG2("tls_start_proxy client_p", a.client_p);
-
-    if (a.fd == -1 || a.client_p == -1 || a.ctx == NULL)
-	return 1;
-
-    if (a.pid != NULL) {
-	*a.pid = 0;
-    }
-    if (a.infofd != NULL) {
-	*a.infofd = -1;
-    }
-
-    r = socketpair(AF_UNIX, SOCK_STREAM, 0, fds);
-    if (r == -1)
-	return -1;
-    if (a.fd >= FD_SETSIZE || fds[0] >= FD_SETSIZE) {
-	ret = 2;
-	goto err;
-    }
-    if (a.infofd != NULL) {
-	r = pipe(infofds);
-	if (r == -1) {
-	    ret = -3;
-	    goto err;
-	}
-    }
-
-    r = fork();
-    if (r == -1) {
-	ret = -4;
-	goto err;
-    }
-    if (r == 0) {
-	DEBUG_MSG("fork");
-	tls_child_p = 1;
-	tls_child_apparg = apparg;
-	close(fds[1]);
-	if (infofds[0] != -1)
-	    close(infofds[0]);
-	TLS_APP_PROCESS_INIT(a.fd, a.client_p, apparg);
-	DEBUG_MSG("TLS_APP_PROCESS_INIT");
-	tls_proxy(fds[0], a.fd, infofds[1], a.ctx, a.client_p);
-	exit(0);
-    }
-    if (a.pid != NULL)
-	*a.pid = r;
-    if (infofds[1] != -1) {
-	close(infofds[1]);
-	infofds[1] = -1;
-    }
-    /* install fds[1] in place of fd: */
-    close(fds[0]);
-    fds[0] = -1;
-    getfd = fcntl(a.fd, F_GETFD);
-    getfl = fcntl(a.fd, F_GETFL);
-    r = dup2(fds[1], a.fd);
-    close(fds[1]);
-    fds[1] = -1;
-    if (r == -1) {
-	ret = -5;
-	goto err;
-    }
-    if (getfd != 1)
-	fcntl(a.fd, F_SETFD, getfd);
-    if (getfl & O_NONBLOCK)
-	(void)tls_socket_nonblocking(a.fd);
-    if (a.infofd != NULL)
-	*a.infofd = infofds[0];
-    return 0;
-    
-  err:
-    if (fds[0] != -1)
-	close(fds[0]);
-    if (fds[1] != -1)
-	close(fds[1]);
-    if (infofds[0] != -1)
-	close(infofds[0]);
-    if (infofds[1] != -1)
-	close(infofds[1]);
-    return ret;
-}
-
-/*****************************************************************************/
-
-static char errbuf[TLS_ERROR_BUFSIZ];
-static size_t errbuf_i = 0;
-
-static void
-tls_errflush(void *apparg)
-{
-    if (errbuf_i == 0)
-	return;
-    
-    assert(errbuf_i < sizeof errbuf);
-    assert(errbuf[errbuf_i] == 0);
-    if (errbuf_i == sizeof errbuf - 1) {
-	/* make sure we have a newline, even if string has been truncated */
-	errbuf[errbuf_i - 1] = '\n';
-    }
-
-    /* TLS_APP_ERRFLUSH may modify the string as needed,
-     * e.g. substitute other characters for \n for convenience */
-    TLS_APP_ERRFLUSH(tls_child_p, errbuf, errbuf_i, apparg);
-
-    errbuf_i = 0;
-}
-
-static void
-tls_errprintf(int flush, void *apparg, const char *fmt, ...)
-{
-    va_list args;
-    int r;
-    
-    if (errbuf_i < sizeof errbuf - 1) {
-	size_t n;
-
-	va_start(args, fmt);
-	n = (sizeof errbuf) - errbuf_i;
-	r = vsnprintf(errbuf + errbuf_i, n, fmt, args);
-	if (r >= n)
-	    r = n - 1;
-	if (r >= 0) {
-	    errbuf_i += r;
-	} else {
-	    errbuf_i = sizeof errbuf - 1;
-	    errbuf[errbuf_i] = '\0';
-	}
-	assert(errbuf_i < sizeof errbuf);
-	assert(errbuf[errbuf_i] == 0);
-    }
-#ifndef TLS_CUMULATE_ERRORS
-    tls_errflush(apparg);
-#else
-    if (flush)
-	tls_errflush(apparg);
-#endif
-}
-
-/* app_prefix.. are for additional information provided by caller.
- * If OpenSSL error queue is empty, print default_text ("???" if NULL).
- */
-static char *
-tls_openssl_errors(const char *app_prefix_1, const char *app_prefix_2, const char *default_text, void *apparg)
-{
-    static char reasons[255];
-    size_t reasons_i;
-    unsigned long err;
-    const char *file;
-    int line;
-    const char *data;
-    int flags;
-    char *errstring;
-    int printed_something = 0;
-    
-    reasons_i = 0;
-
-    assert(app_prefix_1 != NULL);
-    assert(app_prefix_2 != NULL);
-
-    if (default_text == NULL)
-	default_text = "?""?""?";
-    
-    while ((err = ERR_get_error_line_data(&file,&line,&data,&flags)) != 0) {
-	if (reasons_i < sizeof reasons) {
-	    size_t n;
-	    int r;
-
-	    n = (sizeof reasons) - reasons_i;
-	    r = snprintf(reasons + reasons_i, n, "%s%s", (reasons_i > 0 ? ", " : ""), ERR_reason_error_string(err));
-	    if (r >= n)
-		r = n - 1;
-	    if (r >= 0) {
-		reasons_i += r;
-	    } else {
-		reasons_i = sizeof reasons;
-	    }
-	    assert(reasons_i <= sizeof reasons);
-	}
-	
-	errstring = ERR_error_string(err, NULL);
-	assert(errstring != NULL);
-	tls_errprintf(0, apparg, "OpenSSL error%s%s: %s:%s:%d:%s\n", app_prefix_1, app_prefix_2, errstring, file, line, (flags & ERR_TXT_STRING) ? data : "");
-	printed_something = 1;
-    }
-
-    if (!printed_something) {
-	assert(reasons_i == 0);
-	snprintf(reasons, sizeof reasons, "%s", default_text);
-	tls_errprintf(0, apparg, "OpenSSL error%s%s: %s\n", app_prefix_1, app_prefix_2, default_text);
-    }
-
-#ifdef TLS_CUMULATE_ERRORS    
-    tls_errflush(apparg);
-#endif
-    assert(errbuf_i == 0);
-
-    return reasons;
-}
-
-/*****************************************************************************/
-
-static int tls_init_done = 0;
-
-static int
-tls_init(void *apparg)
-{
-    if (tls_init_done)
-	return 0;
-    
-    SSL_load_error_strings();
-    if (!SSL_library_init() /* aka SSLeay_add_ssl_algorithms() */ ) {
-	tls_errprintf(1, apparg, "SSL_library_init failed.\n");
-	return -1;
-    }
-    tls_init_done = 1;
-    tls_rand_seed();
-    return 0;
-}
-
-/*****************************************************************************/
-
-static void
-tls_rand_seed_uniquely(void)
-{
-    struct {
-	pid_t pid;
-	time_t time;
-	void *stack;
-    } data;
-
-    data.pid = getpid();
-    data.time = time(NULL);
-    data.stack = (void *)&data;
-
-    RAND_seed((const void *)&data, sizeof data);
-}
-
-void
-tls_rand_seed(void)
-{
-    struct {
-	struct utsname uname;
-	int uname_1;
-	int uname_2;
-	uid_t uid;
-	uid_t euid;
-	gid_t gid;
-	gid_t egid;
-    } data;
-    
-    data.uname_1 = uname(&data.uname);
-    data.uname_2 = errno; /* Let's hope that uname fails randomly :-) */
-
-    data.uid = getuid();
-    data.euid = geteuid();
-    data.gid = getgid();
-    data.egid = getegid();
-    
-    RAND_seed((const void *)&data, sizeof data);
-    tls_rand_seed_uniquely();
-}
-
-static int tls_rand_seeded_p = 0;
-
-#define my_MIN_SEED_BYTES 256 /* struct stat can be larger than 128 */
-int
-tls_rand_seed_from_file(const char *filename, size_t n, void *apparg)
-{
-    /* Seed OpenSSL's random number generator from file.
-       Try to read n bytes if n > 0, whole file if n == 0. */
-
-    int r;
-
-    if (tls_init(apparg) == -1)
-	return -1;
-    tls_rand_seed();
-
-    r = RAND_load_file(filename, (n > 0 && n < LONG_MAX) ? (long)n : LONG_MAX);
-    /* r is the number of bytes filled into the random number generator,
-     * which are taken from "stat(filename, ...)" in addition to the
-     * file contents.
-     */
-    assert(1 < my_MIN_SEED_BYTES);
-    /* We need to detect at least those cases when the file does not exist
-     * at all.  With current versions of OpenSSL, this should do it: */
-    if (n == 0)
-	n = my_MIN_SEED_BYTES;
-    if (r < n) {
-	tls_errprintf(1, apparg, "rand_seed_from_file: could not read %d bytes from %s.\n", n, filename);
-	return -1;
-    } else {
-	tls_rand_seeded_p = 1;
-	return 0;
-    }
-}
-
-void
-tls_rand_seed_from_memory(const void *buf, size_t n)
-{
-    size_t i = 0;
-    
-    while (i < n) {
-	size_t rest = n - i;
-	int chunk = rest < INT_MAX ? (int)rest : INT_MAX;
-	RAND_seed((const char *)buf + i, chunk);
-	i += chunk;
-    }
-    tls_rand_seeded_p = 1;
-}
-
-
-/*****************************************************************************/
-
-struct tls_x509_name_string {
-    char str[100];
-};
-
-static void
-tls_get_x509_subject_name_oneline(X509 *cert, struct tls_x509_name_string *namestring)
-{
-    X509_NAME *name;
-
-    if (cert == NULL) {
-	namestring->str[0] = '\0';
-	return;
-    }
-    
-    name = X509_get_subject_name(cert); /* does not increment any reference counter */
-
-    assert(sizeof namestring->str >= 4); /* "?" or "...", plus 0 */
-    
-    if (name == NULL) {
-	namestring->str[0] = '?';
-	namestring->str[1] = 0;
-    } else {
-	size_t len;
-
-	X509_NAME_oneline(name, namestring->str, sizeof namestring->str);
-	len = strlen(namestring->str);
-	assert(namestring->str[len] == 0);
-	assert(len < sizeof namestring->str);
-
-	if (len+1 == sizeof namestring->str) {
-	    /* (Probably something was cut off.)
-	     * Does not really work -- X509_NAME_oneline truncates after
-	     * name components, we cannot tell from the result whether
-	     * anything is missing. */
-
-	    assert(namestring->str[len] == 0);
-	    namestring->str[--len] = '.';
-	    namestring->str[--len] = '.';
-	    namestring->str[--len] = '.';
-	}
-    }
-}
-
-/*****************************************************************************/
-
-/* to hinder OpenSSL from asking for passphrases */
-static int
-no_passphrase_callback(char *buf, int num, int w, void *arg)
-{
-    return -1;
-}
-
-#if OPENSSL_VERSION_NUMBER >= 0x00907000L
-static int
-verify_dont_fail_cb(X509_STORE_CTX *c, void *unused_arg)
-#else
-static int
-verify_dont_fail_cb(X509_STORE_CTX *c)
-#endif
-{
-    int i;
-    
-    i = X509_verify_cert(c); /* sets c->error */
-#if OPENSSL_VERSION_NUMBER >= 0x00905000L /* don't allow unverified
-					   * certificates -- they could
-					   * survive session reuse, but
-					   * OpenSSL < 0.9.5-dev does not
-					   * preserve their verify_result */
-    if (i == 0)
-	return 1;
-    else
-#endif
-	return i;
-}
-
-static DH *tls_dhe1024 = NULL; /* generating these takes a while, so do it just once */
-
-void
-tls_set_dhe1024(int i, void *apparg)
-{
-    DSA *dsaparams;
-    DH *dhparams;
-    const char *seed[] = { ";-)  :-(  :-)  :-(  ",
-			   ";-)  :-(  :-)  :-(  ",
-			   "Random String no. 12",
-			   ";-)  :-(  :-)  :-(  ",
-			   "hackers have even mo", /* from jargon file */
-    };
-    unsigned char seedbuf[20];
-    
-    tls_init(apparg);
-    if (i >= 0) {
-	i %= sizeof seed / sizeof seed[0];
-	assert(strlen(seed[i]) == 20);
-	memcpy(seedbuf, seed[i], 20);
-	dsaparams = DSA_generate_parameters(1024, seedbuf, 20, NULL, NULL, 0, NULL);
-    } else {
-	/* random parameters (may take a while) */
-	dsaparams = DSA_generate_parameters(1024, NULL, 0, NULL, NULL, 0, NULL);
-    }
-    
-    if (dsaparams == NULL) {
-	tls_openssl_errors("", "", NULL, apparg);
-	return;
-    }
-    dhparams = DSA_dup_DH(dsaparams);
-    DSA_free(dsaparams);
-    if (dhparams == NULL) {
-	tls_openssl_errors("", "", NULL, apparg);
-	return;
-    }
-    if (tls_dhe1024 != NULL)
-	DH_free(tls_dhe1024);
-    tls_dhe1024 = dhparams;
-}
-
-struct tls_create_ctx_args
-tls_create_ctx_defaultargs(void)
-{
-	struct tls_create_ctx_args ret;
-
-	ret.client_p = 0;
-	ret.certificate_file = NULL;
-	ret.key_file = NULL;
-	ret.ca_file = NULL;
-	ret.verify_depth = -1;
-	ret.fail_unless_verified = 0;
-	ret.export_p = 0;
-
-	return ret;
-}
-
-SSL_CTX *
-tls_create_ctx(struct tls_create_ctx_args a, void *apparg)
-{
-    int r;
-    static long context_num = 0;
-    SSL_CTX *ret;
-    const char *err_pref_1 = "", *err_pref_2 = "";
-    
-    if (tls_init(apparg) == -1)
-	return NULL;
-
-    ret = SSL_CTX_new((a.client_p? SSLv23_client_method:SSLv23_server_method)());
-
-    if (ret == NULL)
-	goto err;
-
-    SSL_CTX_set_default_passwd_cb(ret, no_passphrase_callback);
-    SSL_CTX_set_mode(ret, SSL_MODE_ENABLE_PARTIAL_WRITE);
-    
-    if ((a.certificate_file != NULL) || (a.key_file != NULL)) {
-	if (a.key_file == NULL) {
-	    tls_errprintf(1, apparg, "Need a key file.\n");
-	    goto err_return;
-	}
-	if (a.certificate_file == NULL) {
-	    tls_errprintf(1, apparg, "Need a certificate chain file.\n");
-	    goto err_return;
-	}
-	
-	if (!SSL_CTX_use_PrivateKey_file(ret, a.key_file, SSL_FILETYPE_PEM))
-	    goto err;
-	if (!tls_rand_seeded_p) {
-	    /* particularly paranoid people may not like this --
-	     * so provide your own random seeding before calling this */
-	    if (tls_rand_seed_from_file(a.key_file, 0, apparg) == -1)
-		goto err_return;
-	}
-	if (!SSL_CTX_use_certificate_chain_file(ret, a.certificate_file))
-	    goto err;
-	if (!SSL_CTX_check_private_key(ret)) {
-	    tls_errprintf(1, apparg, "Private key \"%s\" does not match certificate \"%s\".\n", a.key_file, a.certificate_file);
-	    goto err_peek;
-	}
-    }
-    
-    if ((a.ca_file != NULL) || (a.verify_depth > 0)) {
-	context_num++;
-	r = SSL_CTX_set_session_id_context(ret, (const void *)&context_num, (unsigned int)sizeof context_num);
-	if (!r)
-	    goto err;
-	
-	SSL_CTX_set_verify(ret, SSL_VERIFY_PEER | (a.fail_unless_verified ? SSL_VERIFY_FAIL_IF_NO_PEER_CERT : 0), 0);
-	if (!a.fail_unless_verified)
-	    SSL_CTX_set_cert_verify_callback(ret, verify_dont_fail_cb, NULL);
-	    
-	if (a.verify_depth > 0)
-	    SSL_CTX_set_verify_depth(ret, a.verify_depth);
-	
-	if (a.ca_file != NULL) {
-	    r = SSL_CTX_load_verify_locations(ret, a.ca_file, NULL /* no CA-directory */); /* does not report failure if file does not exist ... */
-	    if (!r) {
-		err_pref_1 = " while processing certificate file ";
-		err_pref_2 = a.ca_file;
-		goto err;
-	    }
-	    
-	    if (!a.client_p) {
-		/* SSL_load_client_CA_file is a misnomer, it just creates a list of CNs. */
-		SSL_CTX_set_client_CA_list(ret, SSL_load_client_CA_file(a.ca_file));
-		/* SSL_CTX_set_client_CA_list does not have a return value;
-		 * it does not really need one, but make sure
-		 * (we really test if SSL_load_client_CA_file worked) */
-		if (SSL_CTX_get_client_CA_list(ret) == NULL) {
-		    tls_errprintf(1, apparg, "Could not set client CA list from \"%s\".\n", a.ca_file);
-		    goto err_peek;
-		}
-	    }
-	}
-    }
-    
-    if (!a.client_p) {
-	if (tls_dhe1024 == NULL) {
-	    int i;
-
-	    RAND_bytes((unsigned char *) &i, sizeof i);
-	    /* make sure that i is non-negative -- pick one of the provided
-	     * seeds */
-	    if (i < 0)
-		i = -i;
-	    if (i < 0)
-		i = 0;
-	    tls_set_dhe1024(i, apparg);
-	    if (tls_dhe1024 == NULL)
-		goto err_return;
-	}
-	
-	if (!SSL_CTX_set_tmp_dh(ret, tls_dhe1024))
-	    goto err;
-
-	/* avoid small subgroup attacks: */
-	SSL_CTX_set_options(ret, SSL_OP_SINGLE_DH_USE);
-    }
-	
-#ifndef NO_RSA
-    if (!a.client_p && a.export_p) {
-	RSA *tmpkey;
-
-	tmpkey = RSA_generate_key(512, RSA_F4, 0, NULL);
-	if (tmpkey == NULL)
-	    goto err;
-	if (!SSL_CTX_set_tmp_rsa(ret, tmpkey)) {
-	    RSA_free(tmpkey);
-	    goto err;
-	}
-	RSA_free(tmpkey); /* SSL_CTX_set_tmp_rsa uses a duplicate. */
-    }
-#endif
-	
-    return ret;
-    
- err_peek:
-    if (!ERR_peek_error())
-	goto err_return;
- err:
-    tls_openssl_errors(err_pref_1, err_pref_2, NULL, apparg);
- err_return:
-    if (ret != NULL)
-	SSL_CTX_free(ret);
-    return NULL;
-}
-
-
-/*****************************************************************************/
-
-static int
-tls_socket_nonblocking(int fd)
-{
-    int v, r;
-
-    v = fcntl(fd, F_GETFL, 0);
-    if (v == -1) {
-	if (errno == EINVAL)
-	    return 0; /* already shut down -- ignore */
-	return -1;
-    }
-    r = fcntl(fd, F_SETFL, v | O_NONBLOCK);
-    if (r == -1) {
-	if (errno == EINVAL)
-	    return 0; /* already shut down -- ignore */
-	return -1;
-    }
-    return 0;
-}
-
-static int
-max(int a, int b)
-{
-    return a > b ? a : b;
-}
-
-static void
-tls_sockets_select(int read_select_1, int read_select_2, int write_select_1, int write_select_2, int seconds /* timeout, -1 means no timeout */)
-{
-    int maxfd, n;
-    fd_set reads, writes;
-    struct timeval timeout;
-    struct timeval *timeout_p;
-    
-    assert(read_select_1 >= -1 && read_select_2 >= -1 && write_select_1 >= -1 && write_select_2 >= -1);
-    assert(read_select_1 < FD_SETSIZE && read_select_2 < FD_SETSIZE -1 && write_select_1 < FD_SETSIZE -1 && write_select_2 < FD_SETSIZE -1);
-
-    maxfd = max(max(read_select_1, read_select_2), max(write_select_1, write_select_2));
-    assert(maxfd >= 0);
-
-    FD_ZERO(&reads);
-    FD_ZERO(&writes);
-    
-    for(n = 0; n < 4; ++n) {
-	int i = n % 2;
-	int w = n >= 2;
-	/* loop over all (i, w) in {0,1}x{0,1} */
-	int fd;
-	
-	if (i == 0 && w == 0)
-	    fd = read_select_1;
-	else if (i == 1 && w == 0)
-	    fd = read_select_2;
-	else if (i == 0 && w == 1)
-	    fd = write_select_1;
-	else {
-	    assert(i == 1 && w == 1);
-	    fd = write_select_2;
-	}
-	
-	if (fd >= 0) {
-	    if (w == 0)
-		FD_SET(fd, &reads);
-	    else /* w == 1 */
-		FD_SET(fd, &writes);
-	}
-    }
-
-    if (seconds >= 0) {
-	timeout.tv_sec = seconds;
-	timeout.tv_usec = 0;
-	timeout_p = &timeout;
-    } else 
-	timeout_p = NULL;
-
-    DEBUG_MSG2("select no.", ++tls_select_count);
-    select(maxfd + 1, &reads, &writes, (fd_set *) NULL, timeout_p);
-    DEBUG_MSG("cont.");
-}
-
-/*****************************************************************************/
-
-#define TUNNELBUFSIZE (16*1024)
-struct tunnelbuf {
-    char buf[TUNNELBUFSIZE];
-    size_t len;
-    size_t offset;
-};
-
-static int tls_connect_attempt(SSL *, int *write_select, int *read_select, int *closed, int *progress, const char **err_pref);
-
-static int tls_accept_attempt(SSL *, int *write_select, int *read_select, int *closed, int *progress, const char **err_pref);
-
-static int tls_write_attempt(SSL *, struct tunnelbuf *, int *write_select, int *read_select, int *closed, int *progress, const char **err_pref);
-
-static int tls_read_attempt(SSL *, struct tunnelbuf *, int *write_select, int *read_select, int *closed, int *progress, const char **err_pref);
-
-static int write_attempt(int fd, struct tunnelbuf *, int *select, int *closed, int *progress);
-
-static int read_attempt(int fd, struct tunnelbuf *, int *select, int *closed, int *progress);
-
-static void write_info(SSL *ssl, int *info_fd)
-{
-    if (*info_fd != -1) {
-	long v;
-	int v_ok;
-	struct tls_x509_name_string peer;
-	char infobuf[TLS_INFO_SIZE];
-	int r;
-
-	DEBUG_MSG("write_info");
-	v = SSL_get_verify_result(ssl);
-	v_ok = (v == X509_V_OK) ? 'A' : 'E'; /* Auth./Error */
-	{
-	    X509 *peercert;
-
-	    peercert = SSL_get_peer_certificate(ssl);
-	    tls_get_x509_subject_name_oneline(peercert, &peer);
-	    if (peercert != NULL)
-		X509_free(peercert);
-	}
-	if (peer.str[0] == '\0')
-	    v_ok = '0'; /* no cert at all */
-	else
-	    if (strchr(peer.str, '\n')) {
-		/* should not happen, but make sure */
-		*strchr(peer.str, '\n') = '\0';
-	    }
-	r = snprintf(infobuf, sizeof infobuf, "%c:%s\n%s\n", v_ok, X509_verify_cert_error_string(v), peer.str);
-	DEBUG_MSG2("snprintf", r);
-	if (r == -1 || r >= sizeof infobuf)
-	    r = sizeof infobuf - 1;
-	write(*info_fd, infobuf, r);
-	close (*info_fd);
-	*info_fd = -1;
-    }
-}
-
-
-/* tls_proxy expects that all fds are closed after return */
-static void
-tls_proxy(int clear_fd, int tls_fd, int info_fd, SSL_CTX *ctx, int client_p)
-{
-    struct tunnelbuf clear_to_tls, tls_to_clear;
-    SSL *ssl;
-    BIO *rbio, *wbio;
-    int closed, in_handshake;
-    const char *err_pref_1 = "", *err_pref_2 = "";
-    const char *err_def = NULL;
-
-    assert(clear_fd != -1);
-    assert(tls_fd != -1);
-    assert(clear_fd < FD_SETSIZE);
-    assert(tls_fd < FD_SETSIZE);
-    /* info_fd may be -1 */
-    assert(ctx != NULL);
-
-    tls_rand_seed_uniquely();
-
-    tls_socket_nonblocking(clear_fd);
-    DEBUG_MSG2("clear_fd", clear_fd);
-    tls_socket_nonblocking(tls_fd);
-    DEBUG_MSG2("tls_fd", tls_fd);
-
-    ssl = SSL_new(ctx);
-    if (ssl == NULL)
-	goto err;
-    DEBUG_MSG("SSL_new");
-    if (!SSL_set_fd(ssl, tls_fd))
-	goto err;
-    rbio = SSL_get_rbio(ssl);
-    wbio = SSL_get_wbio(ssl); /* should be the same, but who cares */
-    assert(rbio != NULL);
-    assert(wbio != NULL);
-    if (client_p)
-	SSL_set_connect_state(ssl);
-    else
-	SSL_set_accept_state(ssl);
-    
-    closed = 0;
-    in_handshake = 1;
-    tls_to_clear.len = 0;
-    tls_to_clear.offset = 0;
-    clear_to_tls.len = 0;
-    clear_to_tls.offset = 0;
-
-    err_def = "I/O error";
-    
-    /* loop finishes as soon as we detect that one side closed;
-     * when all (program and OS) buffers have enough space,
-     * the data from the last succesful read in each direction is transferred
-     * before close */
-    do {
-	int clear_read_select = 0, clear_write_select = 0,
-	    tls_read_select = 0, tls_write_select = 0,
-	    progress = 0;
-	int r;
-	unsigned long num_read = BIO_number_read(rbio),
-	    num_written = BIO_number_written(wbio);
-
-	DEBUG_MSG2("loop iteration", ++tls_loop_count);
-
-	if (in_handshake) {
-	    DEBUG_MSG("in_handshake");
-	    if (client_p)
-		r = tls_connect_attempt(ssl, &tls_write_select, &tls_read_select, &closed, &progress, &err_pref_1);
-	    else
-		r = tls_accept_attempt(ssl, &tls_write_select, &tls_read_select, &closed, &progress, &err_pref_1);
-	    if (r != 0) {
-		write_info(ssl, &info_fd);
-		goto err;
-	    }
-	    if (closed)
-		goto err_return;
-	    if (!SSL_in_init(ssl)) {
-		in_handshake = 0;
-		write_info(ssl, &info_fd);
-	    }
-	}
-	
-	if (clear_to_tls.len != 0 && !in_handshake) {
-	    assert(!closed);
-	    
-	    r = tls_write_attempt(ssl, &clear_to_tls, &tls_write_select, &tls_read_select, &closed, &progress, &err_pref_1);
-	    if (r != 0)
-		goto err;
-	    if (closed) {
-		assert(progress);
-		tls_to_clear.offset = 0;
-		tls_to_clear.len = 0;
-	    }
-	}
-	
-	if (tls_to_clear.len != 0) {
-	    assert(!closed);
-
-	    r = write_attempt(clear_fd, &tls_to_clear, &clear_write_select, &closed, &progress);
-	    if (r != 0)
-		goto err_return;
-	    if (closed) {
-		assert(progress);
-		clear_to_tls.offset = 0;
-		clear_to_tls.len = 0;
-	    }
-	}
-	
-	if (!closed) {
-	    if (clear_to_tls.offset + clear_to_tls.len < sizeof clear_to_tls.buf) {
-		r = read_attempt(clear_fd, &clear_to_tls, &clear_read_select, &closed, &progress);
-		if (r != 0)
-		    goto err_return;
-		if (closed) {
-		    r = SSL_shutdown(ssl);
-		    DEBUG_MSG2("SSL_shutdown", r);
-		}
-	    }
-	}
-	
-	if (!closed && !in_handshake) {
-	    if (tls_to_clear.offset + tls_to_clear.len < sizeof tls_to_clear.buf) {
-		r = tls_read_attempt(ssl, &tls_to_clear, &tls_write_select, &tls_read_select, &closed, &progress, &err_pref_1);
-		if (r != 0)
-		    goto err;
-		if (closed) {
-		    r = SSL_shutdown(ssl);
-		    DEBUG_MSG2("SSL_shutdown", r);
-		}
-	    }
-	}
-
-	if (!progress) {
-	    DEBUG_MSG("!progress?");
-	    if (num_read != BIO_number_read(rbio) || num_written != BIO_number_written(wbio))
-		progress = 1;
-
-	    if (!progress) {
-		DEBUG_MSG("!progress");
-		assert(clear_read_select || tls_read_select || clear_write_select || tls_write_select);
-		tls_sockets_select(clear_read_select ? clear_fd : -1, tls_read_select ? tls_fd : -1, clear_write_select ? clear_fd : -1, tls_write_select ? tls_fd : -1, -1);
-	    }
-	}
-    } while (!closed);
-    return;
-
- err:
-    tls_openssl_errors(err_pref_1, err_pref_2, err_def, tls_child_apparg);
- err_return:
-    return;
-}
-
-
-static int
-tls_get_error(SSL *ssl, int r, int *write_select, int *read_select, int *closed, int *progress)
-{
-    int err = SSL_get_error(ssl, r);
-
-    if (err == SSL_ERROR_NONE) {
-	assert(r > 0);
-	*progress = 1;
-	return 0;
-    }
-
-    assert(r <= 0);
-
-    switch (err) {
-    case SSL_ERROR_ZERO_RETURN:
-	assert(r == 0);
-	*closed = 1;
-	*progress = 1;
-	return 0;
-
-    case SSL_ERROR_WANT_WRITE:
-	*write_select = 1;
-	return 0;
-	
-    case SSL_ERROR_WANT_READ:
-	*read_select = 1;
-	return 0;
-    }
-
-    return -1;
-}
-
-static int
-tls_connect_attempt(SSL *ssl, int *write_select, int *read_select, int *closed, int *progress, const char **err_pref)
-{
-    int n, r;
-
-    DEBUG_MSG("tls_connect_attempt");
-    n = SSL_connect(ssl);
-    DEBUG_MSG2("SSL_connect",n);
-    r = tls_get_error(ssl, n, write_select, read_select, closed, progress);
-    if (r == -1)
-	*err_pref = " during SSL_connect";
-    return r;
-}
-
-static int
-tls_accept_attempt(SSL *ssl, int *write_select, int *read_select, int *closed, int *progress, const char **err_pref)
-{
-    int n, r;
-
-    DEBUG_MSG("tls_accept_attempt");
-    n = SSL_accept(ssl);
-    DEBUG_MSG2("SSL_accept",n);
-    r = tls_get_error(ssl, n, write_select, read_select, closed, progress);
-    if (r == -1)
-	*err_pref = " during SSL_accept";
-    return r;
-}
-
-static int
-tls_write_attempt(SSL *ssl, struct tunnelbuf *buf, int *write_select, int *read_select, int *closed, int *progress, const char **err_pref)
-{
-    int n, r;
-
-    DEBUG_MSG("tls_write_attempt");
-    n = SSL_write(ssl, buf->buf + buf->offset, buf->len);
-    DEBUG_MSG2("SSL_write",n);
-    r = tls_get_error(ssl, n, write_select, read_select, closed, progress);
-    if (n > 0) {
-	buf->len -= n;
-	assert(buf->len >= 0);
-	if (buf->len == 0)
-	    buf->offset = 0;
-	else
-	    buf->offset += n;
-    }
-    if (r == -1)
-	*err_pref = " during SSL_write";
-    return r;
-}
-
-static int
-tls_read_attempt(SSL *ssl, struct tunnelbuf *buf, int *write_select, int *read_select, int *closed, int *progress, const char **err_pref)
-{
-    int n, r;
-    size_t total;
-
-    DEBUG_MSG("tls_read_attempt");
-    total = buf->offset + buf->len;
-    assert(total < sizeof buf->buf);
-    n = SSL_read(ssl, buf->buf + total, (sizeof buf->buf) - total);
-    DEBUG_MSG2("SSL_read",n);
-    r = tls_get_error(ssl, n, write_select, read_select, closed, progress);
-    if (n > 0) {
-	buf->len += n;
-	assert(buf->offset + buf->len <= sizeof buf->buf);
-    }
-    if (r == -1)
-	*err_pref = " during SSL_read";
-    return r;
-}
-
-static int
-get_error(int r, int *select, int *closed, int *progress)
-{
-    if (r >= 0) {
-	*progress = 1;
-	if (r == 0)
-	    *closed = 1;
-	return 0;
-    } else {
-	assert(r == -1);
-	if (errno == EAGAIN || errno == EWOULDBLOCK) {
-	    *select = 1;
-	    return 0;
-	} else if (errno == EPIPE) {
-	    *progress = 1;
-	    *closed = 1;
-	    return 0;
-	} else
-	    return -1;
-    }
-}
-
-static int write_attempt(int fd, struct tunnelbuf *buf, int *select, int *closed, int *progress)
-{
-    int n, r;
-
-    DEBUG_MSG("write_attempt");
-    n = write(fd, buf->buf + buf->offset, buf->len);
-    DEBUG_MSG2("write",n);
-    r = get_error(n, select, closed, progress);
-    if (n > 0) {
-	buf->len -= n;
-	assert(buf->len >= 0);
-	if (buf->len == 0)
-	    buf->offset = 0;
-	else
-	    buf->offset += n;
-    }
-    if (r == -1)
-	tls_errprintf(1, tls_child_apparg, "write error: %s\n", strerror(errno));
-    return r;
-}
-    
-static int
-read_attempt(int fd, struct tunnelbuf *buf, int *select, int *closed, int *progress)
-{
-    int n, r;
-    size_t total;
-
-    DEBUG_MSG("read_attempt");
-    total = buf->offset + buf->len;
-    assert(total < sizeof buf->buf);
-    n = read(fd, buf->buf + total, (sizeof buf->buf) - total);
-    DEBUG_MSG2("read",n);
-    r = get_error(n, select, closed, progress);
-    if (n > 0) {
-	buf->len += n;
-	assert(buf->offset + buf->len <= sizeof buf->buf);
-    }
-    if (r == -1)
-	tls_errprintf(1, tls_child_apparg, "read error: %s\n", strerror(errno));
-    return r;
-}
diff --git a/crypto/openssl/demos/easy_tls/easy-tls.h b/crypto/openssl/demos/easy_tls/easy-tls.h
deleted file mode 100644
index 52b298e65471..000000000000
--- a/crypto/openssl/demos/easy_tls/easy-tls.h
+++ /dev/null
@@ -1,57 +0,0 @@
-/* -*- Mode: C; c-file-style: "bsd" -*- */
-/*
- * easy-tls.h -- generic TLS proxy.
- * $Id: easy-tls.h,v 1.1 2001/09/17 19:06:59 bodo Exp $
- */
-/*
- * (c) Copyright 1999 Bodo Moeller.  All rights reserved.
- */
-
-#ifndef HEADER_TLS_H
-#define HEADER_TLS_H
-
-#ifndef HEADER_SSL_H
-typedef struct ssl_ctx_st SSL_CTX;
-#endif
-
-#define TLS_INFO_SIZE 512 /* max. # of bytes written to infofd */
-
-void tls_set_dhe1024(int i, void* apparg);
-/* Generate DHE parameters:
- * i >= 0 deterministic (i selects seed), i < 0 random (may take a while).
- * tls_create_ctx calls this with random non-negative i if the application
- * has never called it.*/
-
-void tls_rand_seed(void);
-int tls_rand_seed_from_file(const char *filename, size_t n, void *apparg);
-void tls_rand_seed_from_memory(const void *buf, size_t n);
-
-struct tls_create_ctx_args 
-{
-    int client_p;
-    const char *certificate_file;
-    const char *key_file;
-    const char *ca_file;
-    int verify_depth;
-    int fail_unless_verified;
-    int export_p;
-};
-struct tls_create_ctx_args tls_create_ctx_defaultargs(void);
-/* struct tls_create_ctx_args is similar to a conventional argument list,
- * but it can provide default values and allows for future extension. */
-SSL_CTX *tls_create_ctx(struct tls_create_ctx_args, void *apparg);
-
-struct tls_start_proxy_args
-{
-    int fd;
-    int client_p;
-    SSL_CTX *ctx;
-    pid_t *pid;
-    int *infofd;
-};
-struct tls_start_proxy_args tls_start_proxy_defaultargs(void);
-/* tls_start_proxy return value *MUST* be checked!
- * 0 means ok, otherwise we've probably run out of some resources. */
-int tls_start_proxy(struct tls_start_proxy_args, void *apparg);
-
-#endif
diff --git a/crypto/openssl/demos/easy_tls/test.c b/crypto/openssl/demos/easy_tls/test.c
deleted file mode 100644
index 21f679afd1ab..000000000000
--- a/crypto/openssl/demos/easy_tls/test.c
+++ /dev/null
@@ -1,244 +0,0 @@
-/* test.c */
-/* $Id: test.c,v 1.1 2001/09/17 19:06:59 bodo Exp $ */
-
-#define L_PORT 9999
-#define C_PORT 443
-
-#include <arpa/inet.h>
-#include <assert.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <netinet/in.h>
-#include <netinet/tcp.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <sys/select.h>
-#include <sys/socket.h>
-#include <unistd.h>
-
-#include "test.h"
-#include "easy-tls.h"
-
-void
-test_process_init(int fd, int client_p, void *apparg)
-{
-    fprintf(stderr, "test_process_init(fd = %d, client_p = %d, apparg = %p)\n", fd, client_p, apparg);
-}
-
-void
-test_errflush(int child_p, char *errbuf, size_t num, void *apparg)
-{
-    fputs(errbuf, stderr);
-}
-
-
-int
-main(int argc, char *argv[])
-{
-    int s, fd, r;
-    FILE *conn_in;
-    FILE *conn_out;
-    char buf[256];
-    SSL_CTX *ctx;
-    int client_p = 0;
-    int port;
-    int tls = 0;
-    char infobuf[TLS_INFO_SIZE + 1];
-
-    if (argc > 1 && argv[1][0] == '-') {
-	fputs("Usage: test [port]                   -- server\n"
-	      "       test num.num.num.num [port]   -- client\n",
-	      stderr);
-	exit(1);
-    }
-
-    if (argc > 1) {
-	if (strchr(argv[1], '.')) {
-	    client_p = 1;
-	}
-    }
-    
-    fputs(client_p ? "Client\n" : "Server\n", stderr);
-    
-    {
-	struct tls_create_ctx_args a = tls_create_ctx_defaultargs();
-	a.client_p = client_p;
-	a.certificate_file = "cert.pem";
-	a.key_file = "cert.pem";
-	a.ca_file = "cacerts.pem";
-	
-	ctx = tls_create_ctx(a, NULL);
-	if (ctx == NULL)
-	    exit(1);
-    }
-    
-    s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
-    if (s == -1) {
-	perror("socket");
-	exit(1);
-    }
-    
-    if (client_p) {
-	struct sockaddr_in addr;
-	size_t addr_len = sizeof addr;
-	    
-	addr.sin_family = AF_INET;
-	assert(argc > 1);
-	if (argc > 2)
-	    sscanf(argv[2], "%d", &port);
-	else
-	    port = C_PORT;
-	addr.sin_port = htons(port);
-	addr.sin_addr.s_addr = inet_addr(argv[1]);
-	    
-	r = connect(s, &addr, addr_len);
-	if (r != 0) {
-	    perror("connect");
-	    exit(1);
-	}
-	fd = s;
-	fprintf(stderr, "Connect (fd = %d).\n", fd);
-    } else {
-	/* server */
-	{
-	    int i = 1;
-
-	    r = setsockopt(s, SOL_SOCKET, SO_REUSEADDR, (void *) &i, sizeof i);
-	    if (r == -1) {
-		perror("setsockopt");
-		exit(1);
-	    }
-	}
-	
-	{
-	    struct sockaddr_in addr;
-	    size_t addr_len = sizeof addr;
-	    
-	    if (argc > 1)
-		sscanf(argv[1], "%d", &port);
-	    else
-		port = L_PORT;
-	    addr.sin_family = AF_INET;
-	    addr.sin_port = htons(port);
-	    addr.sin_addr.s_addr = INADDR_ANY;
-	    
-	    r = bind(s, &addr, addr_len);
-	    if (r != 0) {
-		perror("bind");
-		exit(1);
-	    }
-	}
-    
-	r = listen(s, 1);
-	if (r == -1) {
-	    perror("listen");
-	    exit(1);
-	}
-
-	fprintf(stderr, "Listening at port %i.\n", port);
-	
-	fd = accept(s, NULL, 0);
-	if (fd == -1) {
-	    perror("accept");
-	    exit(1);
-	}
-	
-	fprintf(stderr, "Accept (fd = %d).\n", fd);
-    }
-
-    conn_in = fdopen(fd, "r");
-    if (conn_in == NULL) {
-	perror("fdopen");
-	exit(1);
-    }
-    conn_out = fdopen(fd, "w");
-    if (conn_out == NULL) {
-	perror("fdopen");
-	exit(1);
-    }
-
-    setvbuf(conn_in, NULL, _IOLBF, 256);
-    setvbuf(conn_out, NULL, _IOLBF, 256);
-	
-    while (fgets(buf, sizeof buf, stdin) != NULL) {
-	if (buf[0] == 'W') {
-	    fprintf(conn_out, "%.*s\r\n", (int)(strlen(buf + 1) - 1), buf + 1);
-	    fprintf(stderr, ">>> %.*s\n", (int)(strlen(buf + 1) - 1), buf + 1);
-	} else if (buf[0] == 'C') {
-	    fprintf(stderr, "Closing.\n");
-	    fclose(conn_in);
-	    fclose(conn_out);
-	    exit(0);
-	} else if (buf[0] == 'R') {
-	    int lines = 0;
-
-	    sscanf(buf + 1, "%d", &lines);
-	    do {
-		if (fgets(buf, sizeof buf, conn_in) == NULL) {
-		    if (ferror(conn_in)) {
-			fprintf(stderr, "ERROR\n");
-			exit(1);
-		    }
-		    fprintf(stderr, "CLOSED\n");
-		    return 0;
-		}
-		fprintf(stderr, "<<< %s", buf);
-	    } while (--lines > 0);
-	} else if (buf[0] == 'T') {
-	    int infofd;
-
-	    tls++;
-	    {
-		struct tls_start_proxy_args a = tls_start_proxy_defaultargs();
-		a.fd = fd;
-		a.client_p = client_p;
-		a.ctx = ctx;
-		a.infofd = &infofd;
-		r = tls_start_proxy(a, NULL);
-	    }
-	    assert(r != 1);
-	    if (r != 0) {
-		fprintf(stderr, "tls_start_proxy failed: %d\n", r);
-		switch (r) {
-		case -1:
-		    fputs("socketpair", stderr); break;
-		case 2:
-		    fputs("FD_SETSIZE exceeded", stderr); break;
-		case -3:
-		    fputs("pipe", stderr); break;
-		case -4:
-		    fputs("fork", stderr); break;
-		case -5:
-		    fputs("dup2", stderr); break;
-		default:
-		    fputs("?", stderr);
-		}
-		if (r < 0)
-		    perror("");
-		else
-		    fputc('\n', stderr);
-		exit(1);
-	    }
-	    
-	    r = read(infofd, infobuf, sizeof infobuf - 1);
-	    if (r > 0) {
-		const char *info = infobuf;
-		const char *eol;
-		
-		infobuf[r] = '\0';
-		while ((eol = strchr(info, '\n')) != NULL) {
-		    fprintf(stderr, "+++ `%.*s'\n", eol - info, info);
-		    info = eol+1;
-		}
-		close (infofd);
-	    }
-	} else {
-	    fprintf(stderr, "W...  write line to network\n"
-		    "R[n]  read line (n lines) from network\n"
-		    "C     close\n"
-		    "T     start %sTLS proxy\n", tls ? "another " : "");
-	}
-    }
-    return 0;
-}
diff --git a/crypto/openssl/demos/easy_tls/test.h b/crypto/openssl/demos/easy_tls/test.h
deleted file mode 100644
index dda667843f61..000000000000
--- a/crypto/openssl/demos/easy_tls/test.h
+++ /dev/null
@@ -1,11 +0,0 @@
-/* test.h */
-/* $Id: test.h,v 1.1 2001/09/17 19:07:00 bodo Exp $ */
-
-
-void test_process_init(int fd, int client_p, void *apparg);
-#define TLS_APP_PROCESS_INIT test_process_init
-
-#undef TLS_CUMULATE_ERRORS
-
-void test_errflush(int child_p, char *errbuf, size_t num, void *apparg);
-#define TLS_APP_ERRFLUSH test_errflush