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()
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");
145 SSL *con=NULL,*con2=NULL;
146 int s,k,width,state=0;
147 char *cbuf=NULL,*sbuf=NULL;
148 int cbuf_len,cbuf_off;
149 int sbuf_len,sbuf_off;
150 fd_set readfds,writefds;
153 char *host=SSL_HOST_NAME;
154 char *cert_file=NULL,*key_file=NULL;
155 char *CApath=NULL,*CAfile=NULL,*cipher=NULL;
156 int reconnect=0,badop=0,verify=SSL_VERIFY_NONE,bugs=0;
157 int write_tty,read_tty,write_ssl,read_ssl,tty_on,ssl_pending;
159 int ret=1,in_init=1,i,nbio_test=0;
160 SSL_METHOD *meth=NULL;
162 /*static struct timeval timeout={10,0};*/
164 #if !defined(NO_SSL2) && !defined(NO_SSL3)
165 meth=SSLv23_client_method();
166 #elif !defined(NO_SSL3)
167 meth=SSLv3_client_method();
168 #elif !defined(NO_SSL2)
169 meth=SSLv2_client_method();
179 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
181 if ( ((cbuf=Malloc(BUFSIZZ)) == NULL) ||
182 ((sbuf=Malloc(BUFSIZZ)) == NULL))
184 BIO_printf(bio_err,"out of memory\n");
189 verify_error=X509_V_OK;
198 if (strcmp(*argv,"-host") == 0)
200 if (--argc < 1) goto bad;
203 else if (strcmp(*argv,"-port") == 0)
205 if (--argc < 1) goto bad;
206 port=atoi(*(++argv));
207 if (port == 0) goto bad;
209 else if (strcmp(*argv,"-connect") == 0)
211 if (--argc < 1) goto bad;
212 if (!extract_host_port(*(++argv),&host,NULL,&port))
215 else if (strcmp(*argv,"-verify") == 0)
217 verify=SSL_VERIFY_PEER;
218 if (--argc < 1) goto bad;
219 verify_depth=atoi(*(++argv));
220 BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
222 else if (strcmp(*argv,"-cert") == 0)
224 if (--argc < 1) goto bad;
225 cert_file= *(++argv);
227 else if (strcmp(*argv,"-quiet") == 0)
229 else if (strcmp(*argv,"-pause") == 0)
231 else if (strcmp(*argv,"-debug") == 0)
233 else if (strcmp(*argv,"-showcerts") == 0)
235 else if (strcmp(*argv,"-nbio_test") == 0)
237 else if (strcmp(*argv,"-state") == 0)
240 else if (strcmp(*argv,"-ssl2") == 0)
241 meth=SSLv2_client_method();
244 else if (strcmp(*argv,"-ssl3") == 0)
245 meth=SSLv3_client_method();
248 else if (strcmp(*argv,"-tls1") == 0)
249 meth=TLSv1_client_method();
251 else if (strcmp(*argv,"-bugs") == 0)
253 else if (strcmp(*argv,"-key") == 0)
255 if (--argc < 1) goto bad;
258 else if (strcmp(*argv,"-reconnect") == 0)
262 else if (strcmp(*argv,"-CApath") == 0)
264 if (--argc < 1) goto bad;
267 else if (strcmp(*argv,"-CAfile") == 0)
269 if (--argc < 1) goto bad;
272 else if (strcmp(*argv,"-no_tls1") == 0)
273 off|=SSL_OP_NO_TLSv1;
274 else if (strcmp(*argv,"-no_ssl3") == 0)
275 off|=SSL_OP_NO_SSLv3;
276 else if (strcmp(*argv,"-no_ssl2") == 0)
277 off|=SSL_OP_NO_SSLv2;
278 else if (strcmp(*argv,"-cipher") == 0)
280 if (--argc < 1) goto bad;
284 else if (strcmp(*argv,"-nbio") == 0)
289 BIO_printf(bio_err,"unknown option %s\n",*argv);
303 if (bio_c_out == NULL)
307 bio_c_out=BIO_new(BIO_s_null());
311 if (bio_c_out == NULL)
312 bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE);
316 SSLeay_add_ssl_algorithms();
317 ctx=SSL_CTX_new(meth);
320 ERR_print_errors(bio_err);
325 SSL_CTX_set_options(ctx,SSL_OP_ALL|off);
327 SSL_CTX_set_options(ctx,off);
329 if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
331 SSL_CTX_set_cipher_list(ctx,cipher);
334 SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER"));
337 SSL_CTX_set_verify(ctx,verify,verify_callback);
338 if (!set_cert_stuff(ctx,cert_file,key_file))
341 if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
342 (!SSL_CTX_set_default_verify_paths(ctx)))
344 /* BIO_printf(bio_err,"error seting default verify locations\n"); */
345 ERR_print_errors(bio_err);
349 SSL_load_error_strings();
351 con=(SSL *)SSL_new(ctx);
352 /* SSL_set_cipher_list(con,"RC4-MD5"); */
356 if (init_client(&s,host,port) == 0)
358 BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error());
362 BIO_printf(bio_c_out,"CONNECTED(%08X)\n",s);
368 BIO_printf(bio_c_out,"turning on non blocking io\n");
369 if (BIO_socket_ioctl(s,FIONBIO,&l) < 0)
371 ERR_print_errors(bio_err);
376 if (c_Pause & 0x01) con->debug=1;
377 sbio=BIO_new_socket(s,BIO_NOCLOSE);
383 test=BIO_new(BIO_f_nbio_test());
384 sbio=BIO_push(test,sbio);
390 BIO_set_callback(sbio,bio_dump_cb);
391 BIO_set_callback_arg(sbio,bio_c_out);
394 SSL_set_bio(con,sbio,sbio);
395 SSL_set_connect_state(con);
397 /* ok, lets connect */
398 width=SSL_get_fd(con)+1;
416 if (SSL_in_init(con) && !SSL_total_renegotiations(con))
427 print_stuff(bio_c_out,con,full_log);
428 if (full_log > 0) full_log--;
433 BIO_printf(bio_c_out,"drop connection and then reconnect\n");
435 SSL_set_connect_state(con);
436 SHUTDOWN(SSL_get_fd(con));
442 ssl_pending = read_ssl && SSL_pending(con);
449 if (read_tty) FD_SET(fileno(stdin),&readfds);
450 if (write_tty) FD_SET(fileno(stdout),&writefds);
454 FD_SET(SSL_get_fd(con),&readfds);
456 FD_SET(SSL_get_fd(con),&writefds);
458 /* printf("mode tty(%d %d%d) ssl(%d%d)\n",
459 tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
461 i=select(width,&readfds,&writefds,NULL,NULL);
464 BIO_printf(bio_err,"bad select %d\n",
465 get_last_socket_error());
471 if (!ssl_pending && FD_ISSET(SSL_get_fd(con),&writefds))
473 k=SSL_write(con,&(cbuf[cbuf_off]),
474 (unsigned int)cbuf_len);
475 switch (SSL_get_error(con,k))
480 if (k <= 0) goto end;
481 /* we have done a write(con,NULL,0); */
487 else /* if (cbuf_len > 0) */
493 case SSL_ERROR_WANT_WRITE:
494 BIO_printf(bio_c_out,"write W BLOCK\n");
498 case SSL_ERROR_WANT_READ:
499 BIO_printf(bio_c_out,"write R BLOCK\n");
504 case SSL_ERROR_WANT_X509_LOOKUP:
505 BIO_printf(bio_c_out,"write X BLOCK\n");
507 case SSL_ERROR_ZERO_RETURN:
510 BIO_printf(bio_c_out,"shutdown\n");
520 case SSL_ERROR_SYSCALL:
521 if ((k != 0) || (cbuf_len != 0))
523 BIO_printf(bio_err,"write:errno=%d\n",
524 get_last_socket_error());
534 ERR_print_errors(bio_err);
539 else if (!ssl_pending && FD_ISSET(fileno(stdout),&writefds))
541 i=write(fileno(stdout),&(sbuf[sbuf_off]),sbuf_len);
545 BIO_printf(bio_c_out,"DONE\n");
559 else if (ssl_pending || FD_ISSET(SSL_get_fd(con),&readfds))
562 { static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } }
565 k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ );
567 /* Demo for pending and peek :-) */
568 k=SSL_read(con,sbuf,16);
570 printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240));
574 switch (SSL_get_error(con,k))
585 case SSL_ERROR_WANT_WRITE:
586 BIO_printf(bio_c_out,"read W BLOCK\n");
590 case SSL_ERROR_WANT_READ:
591 BIO_printf(bio_c_out,"read R BLOCK\n");
594 if ((read_tty == 0) && (write_ssl == 0))
597 case SSL_ERROR_WANT_X509_LOOKUP:
598 BIO_printf(bio_c_out,"read X BLOCK\n");
600 case SSL_ERROR_SYSCALL:
601 BIO_printf(bio_err,"read:errno=%d\n",get_last_socket_error());
603 case SSL_ERROR_ZERO_RETURN:
604 BIO_printf(bio_c_out,"closed\n");
607 ERR_print_errors(bio_err);
614 else if (FD_ISSET(fileno(stdin),&readfds))
616 i=read(fileno(stdin),cbuf,BUFSIZZ);
618 if ((!c_quiet) && ((i <= 0) || (cbuf[0] == 'Q')))
620 BIO_printf(bio_err,"DONE\n");
624 if ((!c_quiet) && (cbuf[0] == 'R'))
626 BIO_printf(bio_err,"RENEGOTIATING\n");
627 SSL_renegotiate(con);
643 SHUTDOWN(SSL_get_fd(con));
646 if (con != NULL) SSL_free(con);
647 if (con2 != NULL) SSL_free(con2);
648 if (ctx != NULL) SSL_CTX_free(ctx);
649 if (cbuf != NULL) { memset(cbuf,0,BUFSIZZ); Free(cbuf); }
650 if (sbuf != NULL) { memset(sbuf,0,BUFSIZZ); Free(sbuf); }
651 if (bio_c_out != NULL)
660 static void print_stuff(bio,s,full)
667 static char *space=" ";
670 STACK_OF(X509_NAME) *sk2;
677 sk=SSL_get_peer_cert_chain(s);
680 BIO_printf(bio,"---\nCertificate chain\n");
681 for (i=0; i<sk_X509_num(sk); i++)
683 X509_NAME_oneline(X509_get_subject_name(
684 sk_X509_value(sk,i)),buf,BUFSIZ);
685 BIO_printf(bio,"%2d s:%s\n",i,buf);
686 X509_NAME_oneline(X509_get_issuer_name(
687 sk_X509_value(sk,i)),buf,BUFSIZ);
688 BIO_printf(bio," i:%s\n",buf);
690 PEM_write_bio_X509(bio,sk_X509_value(sk,i));
694 BIO_printf(bio,"---\n");
695 peer=SSL_get_peer_certificate(s);
698 BIO_printf(bio,"Server certificate\n");
699 if (!c_showcerts) /* Redundant if we showed the whole chain */
700 PEM_write_bio_X509(bio,peer);
701 X509_NAME_oneline(X509_get_subject_name(peer),
703 BIO_printf(bio,"subject=%s\n",buf);
704 X509_NAME_oneline(X509_get_issuer_name(peer),
706 BIO_printf(bio,"issuer=%s\n",buf);
709 BIO_printf(bio,"no peer certificate available\n");
711 sk2=SSL_get_client_CA_list(s);
712 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0))
714 BIO_printf(bio,"---\nAcceptable client certificate CA names\n");
715 for (i=0; i<sk_X509_NAME_num(sk2); i++)
717 xn=sk_X509_NAME_value(sk2,i);
718 X509_NAME_oneline(xn,buf,sizeof(buf));
719 BIO_write(bio,buf,strlen(buf));
720 BIO_write(bio,"\n",1);
725 BIO_printf(bio,"---\nNo client certificate CA names sent\n");
727 p=SSL_get_shared_ciphers(s,buf,BUFSIZ);
730 BIO_printf(bio,"---\nCiphers common between both SSL endpoints:\n");
736 BIO_write(bio,space,15-j%25);
739 BIO_write(bio,((i%3)?" ":"\n"),1);
748 BIO_write(bio,"\n",1);
751 BIO_printf(bio,"---\nSSL handshake has read %ld bytes and written %ld bytes\n",
752 BIO_number_read(SSL_get_rbio(s)),
753 BIO_number_written(SSL_get_wbio(s)));
755 BIO_printf(bio,((s->hit)?"---\nReused, ":"---\nNew, "));
756 c=SSL_get_current_cipher(s);
757 BIO_printf(bio,"%s, Cipher is %s\n",
758 SSL_CIPHER_get_version(c),
759 SSL_CIPHER_get_name(c));
762 pktmp = X509_get_pubkey(peer);
763 BIO_printf(bio,"Server public key is %d bit\n",
764 EVP_PKEY_bits(pktmp));
765 EVP_PKEY_free(pktmp);
767 SSL_SESSION_print(bio,SSL_get_session(s));
768 BIO_printf(bio,"---\n");