2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
74 #define PROG s_client_main
76 /*#define SSL_HOST_NAME "www.netscape.com" */
77 /*#define SSL_HOST_NAME "193.118.187.102" */
78 #define SSL_HOST_NAME "localhost"
80 /*#define TEST_CERT "client.pem" */ /* no default cert. */
83 #define BUFSIZZ 1024*8
85 extern int verify_depth
;
86 extern int verify_error
;
93 static int c_showcerts
=0;
96 static void sc_usage(void);
97 static void print_stuff(BIO
*berr
,SSL
*con
,int full
);
99 static void sc_usage();
100 static void print_stuff();
103 static BIO
*bio_c_out
=NULL
;
104 static int c_quiet
=0;
106 static void sc_usage(void)
108 BIO_printf(bio_err
,"usage: s_client args\n");
109 BIO_printf(bio_err
,"\n");
110 BIO_printf(bio_err
," -host host - use -connect instead\n");
111 BIO_printf(bio_err
," -port port - use -connect instead\n");
112 BIO_printf(bio_err
," -connect host:port - who to connect to (default is %s:%s)\n",SSL_HOST_NAME
,PORT_STR
);
114 BIO_printf(bio_err
," -verify arg - turn on peer certificate verification\n");
115 BIO_printf(bio_err
," -cert arg - certificate file to use, PEM format assumed\n");
116 BIO_printf(bio_err
," -key arg - Private key file to use, PEM format assumed, in cert file if\n");
117 BIO_printf(bio_err
," not specified but cert file is.\n");
118 BIO_printf(bio_err
," -CApath arg - PEM format directory of CA's\n");
119 BIO_printf(bio_err
," -CAfile arg - PEM format file of CA's\n");
120 BIO_printf(bio_err
," -reconnect - Drop and re-make the connection with the same Session-ID\n");
121 BIO_printf(bio_err
," -pause - sleep(1) after each read(2) and write(2) system call\n");
122 BIO_printf(bio_err
," -showcerts - show all certificates in the chain\n");
123 BIO_printf(bio_err
," -debug - extra output\n");
124 BIO_printf(bio_err
," -nbio_test - more ssl protocol testing\n");
125 BIO_printf(bio_err
," -state - print the 'ssl' states\n");
127 BIO_printf(bio_err
," -nbio - Run with non-blocking IO\n");
129 BIO_printf(bio_err
," -quiet - no s_client output\n");
130 BIO_printf(bio_err
," -ssl2 - just use SSLv2\n");
131 BIO_printf(bio_err
," -ssl3 - just use SSLv3\n");
132 BIO_printf(bio_err
," -tls1 - just use TLSv1\n");
133 BIO_printf(bio_err
," -no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n");
134 BIO_printf(bio_err
," -bugs - Switch on all SSL implementation bug workarounds\n");
135 BIO_printf(bio_err
," -cipher - prefered cipher to use, use the 'openssl ciphers'\n");
136 BIO_printf(bio_err
," command to see what is available\n");
140 int MAIN(int argc
, char **argv
)
143 SSL
*con
=NULL
,*con2
=NULL
;
144 int s
,k
,width
,state
=0;
145 char *cbuf
=NULL
,*sbuf
=NULL
;
146 int cbuf_len
,cbuf_off
;
147 int sbuf_len
,sbuf_off
;
148 fd_set readfds
,writefds
;
151 char *host
=SSL_HOST_NAME
;
152 char *cert_file
=NULL
,*key_file
=NULL
;
153 char *CApath
=NULL
,*CAfile
=NULL
,*cipher
=NULL
;
154 int reconnect
=0,badop
=0,verify
=SSL_VERIFY_NONE
,bugs
=0;
155 int write_tty
,read_tty
,write_ssl
,read_ssl
,tty_on
,ssl_pending
;
157 int ret
=1,in_init
=1,i
,nbio_test
=0;
158 SSL_METHOD
*meth
=NULL
;
160 /*static struct timeval timeout={10,0};*/
162 #if !defined(NO_SSL2) && !defined(NO_SSL3)
163 meth
=SSLv23_client_method();
164 #elif !defined(NO_SSL3)
165 meth
=SSLv3_client_method();
166 #elif !defined(NO_SSL2)
167 meth
=SSLv2_client_method();
177 bio_err
=BIO_new_fp(stderr
,BIO_NOCLOSE
);
179 if ( ((cbuf
=Malloc(BUFSIZZ
)) == NULL
) ||
180 ((sbuf
=Malloc(BUFSIZZ
)) == NULL
))
182 BIO_printf(bio_err
,"out of memory\n");
187 verify_error
=X509_V_OK
;
196 if (strcmp(*argv
,"-host") == 0)
198 if (--argc
< 1) goto bad
;
201 else if (strcmp(*argv
,"-port") == 0)
203 if (--argc
< 1) goto bad
;
204 port
=atoi(*(++argv
));
205 if (port
== 0) goto bad
;
207 else if (strcmp(*argv
,"-connect") == 0)
209 if (--argc
< 1) goto bad
;
210 if (!extract_host_port(*(++argv
),&host
,NULL
,&port
))
213 else if (strcmp(*argv
,"-verify") == 0)
215 verify
=SSL_VERIFY_PEER
;
216 if (--argc
< 1) goto bad
;
217 verify_depth
=atoi(*(++argv
));
218 BIO_printf(bio_err
,"verify depth is %d\n",verify_depth
);
220 else if (strcmp(*argv
,"-cert") == 0)
222 if (--argc
< 1) goto bad
;
223 cert_file
= *(++argv
);
225 else if (strcmp(*argv
,"-quiet") == 0)
227 else if (strcmp(*argv
,"-pause") == 0)
229 else if (strcmp(*argv
,"-debug") == 0)
231 else if (strcmp(*argv
,"-showcerts") == 0)
233 else if (strcmp(*argv
,"-nbio_test") == 0)
235 else if (strcmp(*argv
,"-state") == 0)
238 else if (strcmp(*argv
,"-ssl2") == 0)
239 meth
=SSLv2_client_method();
242 else if (strcmp(*argv
,"-ssl3") == 0)
243 meth
=SSLv3_client_method();
246 else if (strcmp(*argv
,"-tls1") == 0)
247 meth
=TLSv1_client_method();
249 else if (strcmp(*argv
,"-bugs") == 0)
251 else if (strcmp(*argv
,"-key") == 0)
253 if (--argc
< 1) goto bad
;
256 else if (strcmp(*argv
,"-reconnect") == 0)
260 else if (strcmp(*argv
,"-CApath") == 0)
262 if (--argc
< 1) goto bad
;
265 else if (strcmp(*argv
,"-CAfile") == 0)
267 if (--argc
< 1) goto bad
;
270 else if (strcmp(*argv
,"-no_tls1") == 0)
271 off
|=SSL_OP_NO_TLSv1
;
272 else if (strcmp(*argv
,"-no_ssl3") == 0)
273 off
|=SSL_OP_NO_SSLv3
;
274 else if (strcmp(*argv
,"-no_ssl2") == 0)
275 off
|=SSL_OP_NO_SSLv2
;
276 else if (strcmp(*argv
,"-cipher") == 0)
278 if (--argc
< 1) goto bad
;
282 else if (strcmp(*argv
,"-nbio") == 0)
287 BIO_printf(bio_err
,"unknown option %s\n",*argv
);
301 if (bio_c_out
== NULL
)
305 bio_c_out
=BIO_new(BIO_s_null());
309 if (bio_c_out
== NULL
)
310 bio_c_out
=BIO_new_fp(stdout
,BIO_NOCLOSE
);
314 SSLeay_add_ssl_algorithms();
315 ctx
=SSL_CTX_new(meth
);
318 ERR_print_errors(bio_err
);
323 SSL_CTX_set_options(ctx
,SSL_OP_ALL
|off
);
325 SSL_CTX_set_options(ctx
,off
);
327 if (state
) SSL_CTX_set_info_callback(ctx
,apps_ssl_info_callback
);
329 SSL_CTX_set_cipher_list(ctx
,cipher
);
332 SSL_CTX_set_cipher_list(ctx
,getenv("SSL_CIPHER"));
335 SSL_CTX_set_verify(ctx
,verify
,verify_callback
);
336 if (!set_cert_stuff(ctx
,cert_file
,key_file
))
339 if ((!SSL_CTX_load_verify_locations(ctx
,CAfile
,CApath
)) ||
340 (!SSL_CTX_set_default_verify_paths(ctx
)))
342 /* BIO_printf(bio_err,"error seting default verify locations\n"); */
343 ERR_print_errors(bio_err
);
347 SSL_load_error_strings();
349 con
=(SSL
*)SSL_new(ctx
);
350 /* SSL_set_cipher_list(con,"RC4-MD5"); */
354 if (init_client(&s
,host
,port
) == 0)
356 BIO_printf(bio_err
,"connect:errno=%d\n",get_last_socket_error());
360 BIO_printf(bio_c_out
,"CONNECTED(%08X)\n",s
);
366 BIO_printf(bio_c_out
,"turning on non blocking io\n");
367 if (BIO_socket_ioctl(s
,FIONBIO
,&l
) < 0)
369 ERR_print_errors(bio_err
);
374 if (c_Pause
& 0x01) con
->debug
=1;
375 sbio
=BIO_new_socket(s
,BIO_NOCLOSE
);
381 test
=BIO_new(BIO_f_nbio_test());
382 sbio
=BIO_push(test
,sbio
);
388 BIO_set_callback(sbio
,bio_dump_cb
);
389 BIO_set_callback_arg(sbio
,bio_c_out
);
392 SSL_set_bio(con
,sbio
,sbio
);
393 SSL_set_connect_state(con
);
395 /* ok, lets connect */
396 width
=SSL_get_fd(con
)+1;
414 if (SSL_in_init(con
) && !SSL_total_renegotiations(con
))
425 print_stuff(bio_c_out
,con
,full_log
);
426 if (full_log
> 0) full_log
--;
431 BIO_printf(bio_c_out
,"drop connection and then reconnect\n");
433 SSL_set_connect_state(con
);
434 SHUTDOWN(SSL_get_fd(con
));
440 ssl_pending
= read_ssl
&& SSL_pending(con
);
447 if (read_tty
) FD_SET(fileno(stdin
),&readfds
);
448 if (write_tty
) FD_SET(fileno(stdout
),&writefds
);
452 FD_SET(SSL_get_fd(con
),&readfds
);
454 FD_SET(SSL_get_fd(con
),&writefds
);
456 /* printf("mode tty(%d %d%d) ssl(%d%d)\n",
457 tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
459 i
=select(width
,&readfds
,&writefds
,NULL
,NULL
);
462 BIO_printf(bio_err
,"bad select %d\n",
463 get_last_socket_error());
469 if (!ssl_pending
&& FD_ISSET(SSL_get_fd(con
),&writefds
))
471 k
=SSL_write(con
,&(cbuf
[cbuf_off
]),
472 (unsigned int)cbuf_len
);
473 switch (SSL_get_error(con
,k
))
478 if (k
<= 0) goto end
;
479 /* we have done a write(con,NULL,0); */
485 else /* if (cbuf_len > 0) */
491 case SSL_ERROR_WANT_WRITE
:
492 BIO_printf(bio_c_out
,"write W BLOCK\n");
496 case SSL_ERROR_WANT_READ
:
497 BIO_printf(bio_c_out
,"write R BLOCK\n");
502 case SSL_ERROR_WANT_X509_LOOKUP
:
503 BIO_printf(bio_c_out
,"write X BLOCK\n");
505 case SSL_ERROR_ZERO_RETURN
:
508 BIO_printf(bio_c_out
,"shutdown\n");
518 case SSL_ERROR_SYSCALL
:
519 if ((k
!= 0) || (cbuf_len
!= 0))
521 BIO_printf(bio_err
,"write:errno=%d\n",
522 get_last_socket_error());
532 ERR_print_errors(bio_err
);
537 else if (!ssl_pending
&& FD_ISSET(fileno(stdout
),&writefds
))
539 i
=write(fileno(stdout
),&(sbuf
[sbuf_off
]),sbuf_len
);
543 BIO_printf(bio_c_out
,"DONE\n");
557 else if (ssl_pending
|| FD_ISSET(SSL_get_fd(con
),&readfds
))
560 { static int iiii
; if (++iiii
== 52) { SSL_renegotiate(con
); iiii
=0; } }
563 k
=SSL_read(con
,sbuf
,1024 /* BUFSIZZ */ );
565 /* Demo for pending and peek :-) */
566 k
=SSL_read(con
,sbuf
,16);
568 printf("read=%d pending=%d peek=%d\n",k
,SSL_pending(con
),SSL_peek(con
,zbuf
,10240));
572 switch (SSL_get_error(con
,k
))
583 case SSL_ERROR_WANT_WRITE
:
584 BIO_printf(bio_c_out
,"read W BLOCK\n");
588 case SSL_ERROR_WANT_READ
:
589 BIO_printf(bio_c_out
,"read R BLOCK\n");
592 if ((read_tty
== 0) && (write_ssl
== 0))
595 case SSL_ERROR_WANT_X509_LOOKUP
:
596 BIO_printf(bio_c_out
,"read X BLOCK\n");
598 case SSL_ERROR_SYSCALL
:
599 BIO_printf(bio_err
,"read:errno=%d\n",get_last_socket_error());
601 case SSL_ERROR_ZERO_RETURN
:
602 BIO_printf(bio_c_out
,"closed\n");
605 ERR_print_errors(bio_err
);
612 else if (FD_ISSET(fileno(stdin
),&readfds
))
614 i
=read(fileno(stdin
),cbuf
,BUFSIZZ
);
616 if ((!c_quiet
) && ((i
<= 0) || (cbuf
[0] == 'Q')))
618 BIO_printf(bio_err
,"DONE\n");
622 if ((!c_quiet
) && (cbuf
[0] == 'R'))
624 BIO_printf(bio_err
,"RENEGOTIATING\n");
625 SSL_renegotiate(con
);
641 SHUTDOWN(SSL_get_fd(con
));
644 if (con
!= NULL
) SSL_free(con
);
645 if (con2
!= NULL
) SSL_free(con2
);
646 if (ctx
!= NULL
) SSL_CTX_free(ctx
);
647 if (cbuf
!= NULL
) { memset(cbuf
,0,BUFSIZZ
); Free(cbuf
); }
648 if (sbuf
!= NULL
) { memset(sbuf
,0,BUFSIZZ
); Free(sbuf
); }
649 if (bio_c_out
!= NULL
)
658 static void print_stuff(BIO
*bio
, SSL
*s
, int full
)
662 static char *space
=" ";
665 STACK_OF(X509_NAME
) *sk2
;
672 sk
=SSL_get_peer_cert_chain(s
);
675 BIO_printf(bio
,"---\nCertificate chain\n");
676 for (i
=0; i
<sk_X509_num(sk
); i
++)
678 X509_NAME_oneline(X509_get_subject_name(
679 sk_X509_value(sk
,i
)),buf
,BUFSIZ
);
680 BIO_printf(bio
,"%2d s:%s\n",i
,buf
);
681 X509_NAME_oneline(X509_get_issuer_name(
682 sk_X509_value(sk
,i
)),buf
,BUFSIZ
);
683 BIO_printf(bio
," i:%s\n",buf
);
685 PEM_write_bio_X509(bio
,sk_X509_value(sk
,i
));
689 BIO_printf(bio
,"---\n");
690 peer
=SSL_get_peer_certificate(s
);
693 BIO_printf(bio
,"Server certificate\n");
694 if (!c_showcerts
) /* Redundant if we showed the whole chain */
695 PEM_write_bio_X509(bio
,peer
);
696 X509_NAME_oneline(X509_get_subject_name(peer
),
698 BIO_printf(bio
,"subject=%s\n",buf
);
699 X509_NAME_oneline(X509_get_issuer_name(peer
),
701 BIO_printf(bio
,"issuer=%s\n",buf
);
704 BIO_printf(bio
,"no peer certificate available\n");
706 sk2
=SSL_get_client_CA_list(s
);
707 if ((sk2
!= NULL
) && (sk_X509_NAME_num(sk2
) > 0))
709 BIO_printf(bio
,"---\nAcceptable client certificate CA names\n");
710 for (i
=0; i
<sk_X509_NAME_num(sk2
); i
++)
712 xn
=sk_X509_NAME_value(sk2
,i
);
713 X509_NAME_oneline(xn
,buf
,sizeof(buf
));
714 BIO_write(bio
,buf
,strlen(buf
));
715 BIO_write(bio
,"\n",1);
720 BIO_printf(bio
,"---\nNo client certificate CA names sent\n");
722 p
=SSL_get_shared_ciphers(s
,buf
,BUFSIZ
);
725 BIO_printf(bio
,"---\nCiphers common between both SSL endpoints:\n");
731 BIO_write(bio
,space
,15-j
%25);
734 BIO_write(bio
,((i
%3)?" ":"\n"),1);
743 BIO_write(bio
,"\n",1);
746 BIO_printf(bio
,"---\nSSL handshake has read %ld bytes and written %ld bytes\n",
747 BIO_number_read(SSL_get_rbio(s
)),
748 BIO_number_written(SSL_get_wbio(s
)));
750 BIO_printf(bio
,((s
->hit
)?"---\nReused, ":"---\nNew, "));
751 c
=SSL_get_current_cipher(s
);
752 BIO_printf(bio
,"%s, Cipher is %s\n",
753 SSL_CIPHER_get_version(c
),
754 SSL_CIPHER_get_name(c
));
757 pktmp
= X509_get_pubkey(peer
);
758 BIO_printf(bio
,"Server public key is %d bit\n",
759 EVP_PKEY_bits(pktmp
));
760 EVP_PKEY_free(pktmp
);
762 SSL_SESSION_print(bio
,SSL_get_session(s
));
763 BIO_printf(bio
,"---\n");