OpenVMS Source Code Demos
S_CLIENT.C
Notes:
- The following program is executed whenever a VMS user types the DCL command
openssl s_client
- Compaq source code kit: COMPAQ_SSL_SOURCES_V11A.EXE
- The following program contains undocumented modifications made by, or for, Compaq Computer
Corporation
- This kit does not contain any copyright notices by Compaq Computer Corporation
- Original program source kit: OpenSSL 0.9.6b
- In VMS, a programmer is not allowed to employ socket i/o
routines to do non-network i/o (e.g. terminal devices like stdin)
- Notice how this programmer employed routine TerminalSocket()
to open a connection to stdin (the keyboard) via a socket. This way, the
programmer is able to employ the UNIX I/O statement select()
to wait for i/o from multiple sockets including stdin.
These changes are highlighted in yellow.
- All of the HP-modified SSL Kits from HP-OpenSSL-1.2 running through
HP-OpenSSL-1.4-453 have a problem where s_client.c is able to send an
encrypted message to the far-end server, but unable to display the received
response. The cause for this is a missing VMS conditional statement in those
code bases which I have highlighted here in
purple just before the statement "i=write" (the statement which was
not being executed in later HP code bases)
/* apps/s_client.c */
/* Copyright (C) 1995-1998 Eric Young ([email protected])
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young ([email protected]).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson ([email protected]).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* 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 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young ([email protected])"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson ([email protected])"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``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 OR 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.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifdef NO_STDIO
#define APPS_WIN16
#endif
/* With IPv6, it looks like Digital has mixed up the proper order of
recursive header file inclusion, resulting in the compiler complaining
that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
is needed to have fileno() declared correctly... So let's define u_int */
#if defined(VMS) && defined(__DECC) && !defined(__U_INT)
#define __U_INT
typedef unsigned int u_int;
#endif
#define USE_SOCKETS
#include "apps.h"
#include <openssl/x509.h>
#include <openssl/ssl.h>
#include <openssl/err.h>
#include <openssl/pem.h>
#include <openssl/rand.h>
#include <openssl/engine.h>
#include "s_apps.h"
#ifdef WINDOWS
#include <conio.h>
#endif
#ifdef VMS
#include "term_sock.h"
#endif
#if (defined(VMS) && __VMS_VER < 70000000)
/* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
#undef FIONBIO
#endif
#undef PROG
#define PROG s_client_main
/*#define SSL_HOST_NAME "www.netscape.com" */
/*#define SSL_HOST_NAME "193.118.187.102" */
#define SSL_HOST_NAME "localhost"
/*#define TEST_CERT "client.pem" */ /* no default cert. */
#undef BUFSIZZ
#define BUFSIZZ 1024*8
extern int verify_depth;
extern int verify_error;
#ifdef FIONBIO
static int c_nbio=0;
#endif
static int c_Pause=0;
static int c_debug=0;
static int c_showcerts=0;
static void sc_usage(void);
static void print_stuff(BIO *berr,SSL *con,int full);
static BIO *bio_c_out=NULL;
static int c_quiet=0;
static int c_ign_eof=0;
static void sc_usage(void)
{
BIO_printf(bio_err,"usage: s_client args\n");
BIO_printf(bio_err,"\n");
BIO_printf(bio_err," -host host - use -connect instead\n");
BIO_printf(bio_err," -port port - use -connect instead\n");
BIO_printf(bio_err," -connect host:port - who to connect to (default is %s:%s)\n",SSL_HOST_NAME,PORT_STR);
BIO_printf(bio_err," -verify arg - turn on peer certificate verification\n");
BIO_printf(bio_err," -cert arg - certificate file to use, PEM format assumed\n");
BIO_printf(bio_err," -key arg - Private key file to use, PEM format assumed, in cert file if\n");
BIO_printf(bio_err," not specified but cert file is.\n");
BIO_printf(bio_err," -CApath arg - PEM format directory of CA's\n");
BIO_printf(bio_err," -CAfile arg - PEM format file of CA's\n");
BIO_printf(bio_err," -reconnect - Drop and re-make the connection with the same Session-ID\n");
BIO_printf(bio_err," -pause - sleep(1) after each read(2) and write(2) system call\n");
BIO_printf(bio_err," -showcerts - show all certificates in the chain\n");
BIO_printf(bio_err," -debug - extra output\n");
BIO_printf(bio_err," -nbio_test - more ssl protocol testing\n");
BIO_printf(bio_err," -state - print the 'ssl' states\n");
#ifdef FIONBIO
BIO_printf(bio_err," -nbio - Run with non-blocking IO\n");
#endif
BIO_printf(bio_err," -crlf - convert LF from terminal into CRLF\n");
BIO_printf(bio_err," -quiet - no s_client output\n");
BIO_printf(bio_err," -ign_eof - ignore input eof (default when -quiet)\n");
BIO_printf(bio_err," -ssl2 - just use SSLv2\n");
BIO_printf(bio_err," -ssl3 - just use SSLv3\n");
BIO_printf(bio_err," -tls1 - just use TLSv1\n");
BIO_printf(bio_err," -no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n");
BIO_printf(bio_err," -bugs - Switch on all SSL implementation bug workarounds\n");
BIO_printf(bio_err," -cipher - preferred cipher to use, use the 'openssl ciphers'\n");
BIO_printf(bio_err," command to see what is available\n");
BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
BIO_printf(bio_err," -engine id - Initialise and use the specified engine\n");
}
int MAIN(int, char **);
int MAIN(int argc, char **argv)
{
int off=0;
SSL *con=NULL,*con2=NULL;
int s,k,width,state=0;
char *cbuf=NULL,*sbuf=NULL;
int cbuf_len,cbuf_off;
int sbuf_len,sbuf_off;
fd_set readfds,writefds;
short port=PORT;
int full_log=1;
char *host=SSL_HOST_NAME;
char *cert_file=NULL,*key_file=NULL;
char *CApath=NULL,*CAfile=NULL,*cipher=NULL;
int reconnect=0,badop=0,verify=SSL_VERIFY_NONE,bugs=0;
int crlf=0;
int write_tty,read_tty,write_ssl,read_ssl,tty_on,ssl_pending;
SSL_CTX *ctx=NULL;
int ret=1,in_init=1,i,nbio_test=0;
int prexit = 0;
SSL_METHOD *meth=NULL;
BIO *sbio;
char *inrand=NULL;
char *engine_id=NULL;
ENGINE *e=NULL;
#ifdef WINDOWS
struct timeval tv;
#endif
#ifdef VMS
int stdin_sock;
TerminalSocket (TERM_SOCK_CREATE, &stdin_sock);
#endif
#if !defined(NO_SSL2) && !defined(NO_SSL3)
meth=SSLv23_client_method();
#elif !defined(NO_SSL3)
meth=SSLv3_client_method();
#elif !defined(NO_SSL2)
meth=SSLv2_client_method();
#endif
apps_startup();
c_Pause=0;
c_quiet=0;
c_ign_eof=0;
c_debug=0;
c_showcerts=0;
if (bio_err == NULL)
bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
if ( ((cbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
((sbuf=OPENSSL_malloc(BUFSIZZ)) == NULL))
{
BIO_printf(bio_err,"out of memory\n");
goto end;
}
verify_depth=0;
verify_error=X509_V_OK;
#ifdef FIONBIO
c_nbio=0;
#endif
argc--;
argv++;
while (argc >= 1)
{
if (strcmp(*argv,"-host") == 0)
{
if (--argc < 1) goto bad;
host= *(++argv);
}
else if (strcmp(*argv,"-port") == 0)
{
if (--argc < 1) goto bad;
port=atoi(*(++argv));
if (port == 0) goto bad;
}
else if (strcmp(*argv,"-connect") == 0)
{
if (--argc < 1) goto bad;
if (!extract_host_port(*(++argv),&host,NULL,&port))
goto bad;
}
else if (strcmp(*argv,"-verify") == 0)
{
verify=SSL_VERIFY_PEER;
if (--argc < 1) goto bad;
verify_depth=atoi(*(++argv));
BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
}
else if (strcmp(*argv,"-cert") == 0)
{
if (--argc < 1) goto bad;
cert_file= *(++argv);
}
else if (strcmp(*argv,"-prexit") == 0)
prexit=1;
else if (strcmp(*argv,"-crlf") == 0)
crlf=1;
else if (strcmp(*argv,"-quiet") == 0)
{
c_quiet=1;
c_ign_eof=1;
}
else if (strcmp(*argv,"-ign_eof") == 0)
c_ign_eof=1;
else if (strcmp(*argv,"-pause") == 0)
c_Pause=1;
else if (strcmp(*argv,"-debug") == 0)
c_debug=1;
else if (strcmp(*argv,"-showcerts") == 0)
c_showcerts=1;
else if (strcmp(*argv,"-nbio_test") == 0)
nbio_test=1;
else if (strcmp(*argv,"-state") == 0)
state=1;
#ifndef NO_SSL2
else if (strcmp(*argv,"-ssl2") == 0)
meth=SSLv2_client_method();
#endif
#ifndef NO_SSL3
else if (strcmp(*argv,"-ssl3") == 0)
meth=SSLv3_client_method();
#endif
#ifndef NO_TLS1
else if (strcmp(*argv,"-tls1") == 0)
meth=TLSv1_client_method();
#endif
else if (strcmp(*argv,"-bugs") == 0)
bugs=1;
else if (strcmp(*argv,"-key") == 0)
{
if (--argc < 1) goto bad;
key_file= *(++argv);
}
else if (strcmp(*argv,"-reconnect") == 0)
{
reconnect=5;
}
else if (strcmp(*argv,"-CApath") == 0)
{
if (--argc < 1) goto bad;
CApath= *(++argv);
}
else if (strcmp(*argv,"-CAfile") == 0)
{
if (--argc < 1) goto bad;
CAfile= *(++argv);
}
else if (strcmp(*argv,"-no_tls1") == 0)
off|=SSL_OP_NO_TLSv1;
else if (strcmp(*argv,"-no_ssl3") == 0)
off|=SSL_OP_NO_SSLv3;
else if (strcmp(*argv,"-no_ssl2") == 0)
off|=SSL_OP_NO_SSLv2;
else if (strcmp(*argv,"-cipher") == 0)
{
if (--argc < 1) goto bad;
cipher= *(++argv);
}
#ifdef FIONBIO
else if (strcmp(*argv,"-nbio") == 0)
{ c_nbio=1; }
#endif
else if (strcmp(*argv,"-rand") == 0)
{
if (--argc < 1) goto bad;
inrand= *(++argv);
}
else if (strcmp(*argv,"-engine") == 0)
{
if (--argc < 1) goto bad;
engine_id = *(++argv);
}
else
{
BIO_printf(bio_err,"unknown option %s\n",*argv);
badop=1;
break;
}
argc--;
argv++;
}
if (badop)
{
bad:
sc_usage();
goto end;
}
if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
&& !RAND_status())
{
BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n\n");
}
if (inrand != NULL)
BIO_printf(bio_err,"%ld semi-random bytes loaded\n\n",
app_RAND_load_files(inrand));
if (bio_c_out == NULL)
{
if (c_quiet)
{
bio_c_out=BIO_new(BIO_s_null());
}
else
{
if (bio_c_out == NULL)
bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE);
}
}
OpenSSL_add_ssl_algorithms();
SSL_load_error_strings();
if (engine_id != NULL)
{
if((e = ENGINE_by_id(engine_id)) == NULL)
{
BIO_printf(bio_err,"invalid engine\n");
ERR_print_errors(bio_err);
goto end;
}
if (c_debug)
{
ENGINE_ctrl(e, ENGINE_CTRL_SET_LOGSTREAM,
0, bio_err, 0);
}
if(!ENGINE_set_default(e, ENGINE_METHOD_ALL))
{
BIO_printf(bio_err,"can't use that engine\n");
ERR_print_errors(bio_err);
goto end;
}
BIO_printf(bio_err,"engine \"%s\" set.\n\n", engine_id);
ENGINE_free(e);
}
ctx=SSL_CTX_new(meth);
if (ctx == NULL)
{
ERR_print_errors(bio_err);
goto end;
}
if (bugs)
SSL_CTX_set_options(ctx,SSL_OP_ALL|off);
else
SSL_CTX_set_options(ctx,off);
if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
if (cipher != NULL)
if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
BIO_printf(bio_err,"error setting cipher list\n");
ERR_print_errors(bio_err);
goto end;
}
#if 0
else
SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER"));
#endif
SSL_CTX_set_verify(ctx,verify,verify_callback);
if (!set_cert_stuff(ctx,cert_file,key_file))
goto end;
if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
(!SSL_CTX_set_default_verify_paths(ctx)))
{
/* BIO_printf(bio_err,"error setting default verify locations\n"); */
ERR_print_errors(bio_err);
/* goto end; */
}
con=SSL_new(ctx);
/* SSL_set_cipher_list(con,"RC4-MD5"); */
re_start:
if (init_client(&s,host,port) == 0)
{
BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error());
SHUTDOWN(s);
goto end;
}
BIO_printf(bio_c_out,"CONNECTED(%08X)\n\n",s);
#ifdef FIONBIO
if (c_nbio)
{
unsigned long l=1;
BIO_printf(bio_c_out,"turning on non blocking io\n");
if (BIO_socket_ioctl(s,FIONBIO,&l) < 0)
{
ERR_print_errors(bio_err);
goto end;
}
}
#endif
if (c_Pause & 0x01) con->debug=1;
sbio=BIO_new_socket(s,BIO_NOCLOSE);
if (nbio_test)
{
BIO *test;
test=BIO_new(BIO_f_nbio_test());
sbio=BIO_push(test,sbio);
}
if (c_debug)
{
con->debug=1;
BIO_set_callback(sbio,bio_dump_cb);
BIO_set_callback_arg(sbio,bio_c_out);
}
SSL_set_bio(con,sbio,sbio);
SSL_set_connect_state(con);
/* ok, lets connect */
#ifdef VMS
if (stdin_sock > SSL_get_fd(con))
width=stdin_sock+1;
else
#endif
width=SSL_get_fd(con)+1;
read_tty=1;
write_tty=0;
tty_on=0;
read_ssl=1;
write_ssl=1;
cbuf_len=0;
cbuf_off=0;
sbuf_len=0;
sbuf_off=0;
for (;;)
{
FD_ZERO(&readfds);
FD_ZERO(&writefds);
if (SSL_in_init(con) && !SSL_total_renegotiations(con))
{
in_init=1;
tty_on=0;
}
else
{
tty_on=1;
if (in_init)
{
in_init=0;
print_stuff(bio_c_out,con,full_log);
if (full_log > 0) full_log--;
if (reconnect)
{
reconnect--;
BIO_printf(bio_c_out,"drop connection and then reconnect\n");
SSL_shutdown(con);
SSL_set_connect_state(con);
SHUTDOWN(SSL_get_fd(con));
goto re_start;
}
}
}
ssl_pending = read_ssl && SSL_pending(con);
if (!ssl_pending)
{
#ifndef WINDOWS
if (tty_on)
{
#ifdef VMS
if (read_tty) FD_SET(stdin_sock,&readfds);
#else
if (read_tty) FD_SET(fileno(stdin),&readfds);
if (write_tty) FD_SET(fileno(stdout),&writefds);
#endif
}
if (read_ssl)
FD_SET(SSL_get_fd(con),&readfds);
if (write_ssl)
FD_SET(SSL_get_fd(con),&writefds);
#else
if(!tty_on || !write_tty) {
if (read_ssl)
FD_SET(SSL_get_fd(con),&readfds);
if (write_ssl)
FD_SET(SSL_get_fd(con),&writefds);
}
#endif
/* printf("mode tty(%d %d%d) ssl(%d%d)\n",
tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
/* Note: under VMS with SOCKETSHR the second parameter
* is currently of type (int *) whereas under other
* systems it is (void *) if you don't have a cast it
* will choke the compiler: if you do have a cast then
* you can either go for (int *) or (void *).
*/
#ifdef WINDOWS
/* Under Windows we make the assumption that we can
* always write to the tty: therefore if we need to
* write to the tty we just fall through. Otherwise
* we timeout the select every second and see if there
* are any keypresses. Note: this is a hack, in a proper
* Windows application we wouldn't do this.
*/
i=0;
if(!write_tty) {
if(read_tty) {
tv.tv_sec = 1;
tv.tv_usec = 0;
i=select(width,(void *)&readfds,(void *)&writefds,
NULL,&tv);
if(!i && (!((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) || !read_tty) ) continue;
} else i=select(width,(void *)&readfds,(void *)&writefds,
NULL,NULL);
}
#else
i=select(width,(void *)&readfds,(void *)&writefds,
NULL,NULL);
#endif
if ( i < 0)
{
BIO_printf(bio_err,"bad select %d\n",
get_last_socket_error());
goto shut;
/* goto end; */
}
}
if (!ssl_pending && FD_ISSET(SSL_get_fd(con),&writefds))
{
k=SSL_write(con,&(cbuf[cbuf_off]),
(unsigned int)cbuf_len);
switch (SSL_get_error(con,k))
{
case SSL_ERROR_NONE:
cbuf_off+=k;
cbuf_len-=k;
if (k <= 0) goto end;
/* we have done a write(con,NULL,0); */
if (cbuf_len <= 0)
{
read_tty=1;
write_ssl=0;
}
else /* if (cbuf_len > 0) */
{
read_tty=0;
write_ssl=1;
}
break;
case SSL_ERROR_WANT_WRITE:
BIO_printf(bio_c_out,"write W BLOCK\n");
write_ssl=1;
read_tty=0;
break;
case SSL_ERROR_WANT_READ:
BIO_printf(bio_c_out,"write R BLOCK\n");
write_tty=0;
read_ssl=1;
write_ssl=0;
break;
case SSL_ERROR_WANT_X509_LOOKUP:
BIO_printf(bio_c_out,"write X BLOCK\n");
break;
case SSL_ERROR_ZERO_RETURN:
if (cbuf_len != 0)
{
BIO_printf(bio_c_out,"shutdown\n");
goto shut;
}
else
{
read_tty=1;
write_ssl=0;
break;
}
case SSL_ERROR_SYSCALL:
if ((k != 0) || (cbuf_len != 0))
{
BIO_printf(bio_err,"write:errno=%d\n",
get_last_socket_error());
goto shut;
}
else
{
read_tty=1;
write_ssl=0;
}
break;
case SSL_ERROR_SSL:
ERR_print_errors(bio_err);
goto shut;
}
}
#if defined(WINDOWS) || defined(VMS)
/* Assume Windows & VMS can always write */
else if (!ssl_pending && write_tty)
#else
else if (!ssl_pending && FD_ISSET(fileno(stdout),&writefds))
#endif
{
#ifdef CHARSET_EBCDIC
ascii2ebcdic(&(sbuf[sbuf_off]),&(sbuf[sbuf_off]),sbuf_len);
#endif
i=write(fileno(stdout),&(sbuf[sbuf_off]),sbuf_len);
if (i <= 0)
{
BIO_printf(bio_c_out,"DONE\n");
goto shut;
/* goto end; */
}
sbuf_len-=i;;
sbuf_off+=i;
if (sbuf_len <= 0)
{
read_ssl=1;
write_tty=0;
}
}
else if (ssl_pending || FD_ISSET(SSL_get_fd(con),&readfds))
{
#ifdef RENEG
{ static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } }
#endif
#if 1
k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ );
#else
/* Demo for pending and peek :-) */
k=SSL_read(con,sbuf,16);
{ char zbuf[10240];
printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240));
}
#endif
switch (SSL_get_error(con,k))
{
case SSL_ERROR_NONE:
if (k <= 0)
goto end;
sbuf_off=0;
sbuf_len=k;
read_ssl=0;
write_tty=1;
break;
case SSL_ERROR_WANT_WRITE:
BIO_printf(bio_c_out,"read W BLOCK\n");
write_ssl=1;
read_tty=0;
break;
case SSL_ERROR_WANT_READ:
BIO_printf(bio_c_out,"read R BLOCK\n\n");
write_tty=0;
read_ssl=1;
if ((read_tty == 0) && (write_ssl == 0))
write_ssl=1;
break;
case SSL_ERROR_WANT_X509_LOOKUP:
BIO_printf(bio_c_out,"read X BLOCK\n");
break;
case SSL_ERROR_SYSCALL:
BIO_printf(bio_err,"read:errno=%d\n",get_last_socket_error());
goto shut;
case SSL_ERROR_ZERO_RETURN:
BIO_printf(bio_c_out,"closed\n");
goto shut;
case SSL_ERROR_SSL:
ERR_print_errors(bio_err);
goto shut;
/* break; */
}
}
#ifdef WINDOWS
else if ((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0)))
#else
#ifdef VMS
else if (FD_ISSET(stdin_sock,&readfds))
#else
else if (FD_ISSET(fileno(stdin),&readfds))
#endif
#endif
{
if (crlf)
{
int j, lf_num;
#ifdef VMS
i=recv(stdin_sock,cbuf,BUFSIZZ/2,0);
#else
i=read(fileno(stdin),cbuf,BUFSIZZ/2);
#endif
lf_num = 0;
/* both loops are skipped when i <= 0 */
for (j = 0; j < i; j++)
if (cbuf[j] == '\n')
lf_num++;
for (j = i-1; j >= 0; j--)
{
cbuf[j+lf_num] = cbuf[j];
if (cbuf[j] == '\n')
{
lf_num--;
i++;
cbuf[j+lf_num] = '\r';
}
}
assert(lf_num == 0);
}
else
#ifdef VMS
i=recv(stdin_sock,cbuf,BUFSIZZ,0);
#else
i=read(fileno(stdin),cbuf,BUFSIZZ);
#endif
if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q')))
{
BIO_printf(bio_err,"DONE\n");
goto shut;
}
if ((!c_ign_eof) && (cbuf[0] == 'R'))
{
BIO_printf(bio_err,"RENEGOTIATING\n");
SSL_renegotiate(con);
cbuf_len=0;
}
else
{
cbuf_len=i;
cbuf_off=0;
#ifdef CHARSET_EBCDIC
ebcdic2ascii(cbuf, cbuf, i);
#endif
}
write_ssl=1;
read_tty=0;
}
}
shut:
SSL_shutdown(con);
SHUTDOWN(SSL_get_fd(con));
ret=0;
end:
if(prexit) print_stuff(bio_c_out,con,1);
if (con != NULL) SSL_free(con);
if (con2 != NULL) SSL_free(con2);
if (ctx != NULL) SSL_CTX_free(ctx);
if (cbuf != NULL) { memset(cbuf,0,BUFSIZZ); OPENSSL_free(cbuf); }
if (sbuf != NULL) { memset(sbuf,0,BUFSIZZ); OPENSSL_free(sbuf); }
if (bio_c_out != NULL)
{
BIO_free(bio_c_out);
bio_c_out=NULL;
}
#ifdef VMS
TerminalSocket (TERM_SOCK_DELETE, &stdin_sock);
#endif
EXIT(ret);
}
static void print_stuff(BIO *bio, SSL *s, int full)
{
X509 *peer=NULL;
char *p;
static char *space=" ";
char buf[BUFSIZ];
STACK_OF(X509) *sk;
STACK_OF(X509_NAME) *sk2;
SSL_CIPHER *c;
X509_NAME *xn;
int j,i;
if (full)
{
int got_a_chain = 0;
sk=SSL_get_peer_cert_chain(s);
if (sk != NULL)
{
got_a_chain = 1; /* we don't have it for SSL2 (yet) */
BIO_printf(bio,"---\nCertificate chain\n");
for (i=0; i<sk_X509_num(sk); i++)
{
X509_NAME_oneline(X509_get_subject_name(
sk_X509_value(sk,i)),buf,BUFSIZ);
BIO_printf(bio,"%2d s:%s\n",i,buf);
X509_NAME_oneline(X509_get_issuer_name(
sk_X509_value(sk,i)),buf,BUFSIZ);
BIO_printf(bio," i:%s\n\n",buf);
if (c_showcerts)
PEM_write_bio_X509(bio,sk_X509_value(sk,i));
}
}
BIO_printf(bio,"---\n");
peer=SSL_get_peer_certificate(s);
if (peer != NULL)
{
BIO_printf(bio,"Server certificate\n");
if (!(c_showcerts && got_a_chain)) /* Redundant if we showed the whole chain */
PEM_write_bio_X509(bio,peer);
X509_NAME_oneline(X509_get_subject_name(peer),
buf,BUFSIZ);
BIO_printf(bio,"subject=%s\n",buf);
X509_NAME_oneline(X509_get_issuer_name(peer),
buf,BUFSIZ);
BIO_printf(bio,"issuer=%s\n",buf);
}
else
BIO_printf(bio,"no peer certificate available\n");
sk2=SSL_get_client_CA_list(s);
if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0))
{
BIO_printf(bio,"---\nAcceptable client certificate CA names\n");
for (i=0; i<sk_X509_NAME_num(sk2); i++)
{
xn=sk_X509_NAME_value(sk2,i);
X509_NAME_oneline(xn,buf,sizeof(buf));
BIO_write(bio,buf,strlen(buf));
BIO_write(bio,"\n",1);
}
}
else
{
BIO_printf(bio,"---\nNo client certificate CA names sent\n");
}
p=SSL_get_shared_ciphers(s,buf,BUFSIZ);
if (p != NULL)
{
/* This works only for SSLv2. In later protocol
* versions, the client does not know what other
* ciphers (in addition to the one to be used
* in the current connection) the server supports. */
BIO_printf(bio,"---\nCiphers common between both SSL endpoints:\n");
j=i=0;
while (*p)
{
if (*p == ':')
{
BIO_write(bio,space,15-j%25);
i++;
j=0;
BIO_write(bio,((i%3)?" ":"\n"),1);
}
else
{
BIO_write(bio,p,1);
j++;
}
p++;
}
BIO_write(bio,"\n",1);
}
BIO_printf(bio,"---\nSSL handshake has read %ld bytes and written %ld bytes\n",
BIO_number_read(SSL_get_rbio(s)),
BIO_number_written(SSL_get_wbio(s)));
}
BIO_printf(bio,((s->hit)?"---\nReused, ":"---\nNew, "));
c=SSL_get_current_cipher(s);
BIO_printf(bio,"%s, Cipher is %s\n\n",
SSL_CIPHER_get_version(c),
SSL_CIPHER_get_name(c));
if (peer != NULL) {
EVP_PKEY *pktmp;
pktmp = X509_get_pubkey(peer);
BIO_printf(bio,"Server public key is %d bit\n",
EVP_PKEY_bits(pktmp));
EVP_PKEY_free(pktmp);
}
SSL_SESSION_print(bio,SSL_get_session(s));
BIO_printf(bio,"---\n\n");
if (peer != NULL)
X509_free(peer);
/* flush, or debugging output gets mixed with http response */
BIO_flush(bio);
}