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.]
67 #include <openssl/x509.h>
68 #include <openssl/ssl.h>
69 #include <openssl/err.h>
70 #include <openssl/pem.h>
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");