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 /* With IPv6, it looks like Digital has mixed up the proper order of
68 recursive header file inclusion, resulting in the compiler complaining
69 that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
70 is needed to have fileno() declared correctly... So let's define u_int */
71 #if defined(VMS) && defined(__DECC) && !defined(__U_INT)
73 typedef unsigned int u_int;
78 #include <openssl/x509.h>
79 #include <openssl/ssl.h>
80 #include <openssl/err.h>
81 #include <openssl/pem.h>
82 #include <openssl/engine.h>
90 #if (defined(VMS) && __VMS_VER < 70000000)
91 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
96 #define PROG s_client_main
98 /*#define SSL_HOST_NAME "www.netscape.com" */
99 /*#define SSL_HOST_NAME "193.118.187.102" */
100 #define SSL_HOST_NAME "localhost"
102 /*#define TEST_CERT "client.pem" */ /* no default cert. */
105 #define BUFSIZZ 1024*8
107 extern int verify_depth;
108 extern int verify_error;
113 static int c_Pause=0;
114 static int c_debug=0;
115 static int c_showcerts=0;
117 static void sc_usage(void);
118 static void print_stuff(BIO *berr,SSL *con,int full);
119 static BIO *bio_c_out=NULL;
120 static int c_quiet=0;
121 static int c_ign_eof=0;
123 static void sc_usage(void)
125 BIO_printf(bio_err,"usage: s_client args\n");
126 BIO_printf(bio_err,"\n");
127 BIO_printf(bio_err," -host host - use -connect instead\n");
128 BIO_printf(bio_err," -port port - use -connect instead\n");
129 BIO_printf(bio_err," -connect host:port - who to connect to (default is %s:%s)\n",SSL_HOST_NAME,PORT_STR);
131 BIO_printf(bio_err," -verify arg - turn on peer certificate verification\n");
132 BIO_printf(bio_err," -cert arg - certificate file to use, PEM format assumed\n");
133 BIO_printf(bio_err," -key arg - Private key file to use, PEM format assumed, in cert file if\n");
134 BIO_printf(bio_err," not specified but cert file is.\n");
135 BIO_printf(bio_err," -CApath arg - PEM format directory of CA's\n");
136 BIO_printf(bio_err," -CAfile arg - PEM format file of CA's\n");
137 BIO_printf(bio_err," -reconnect - Drop and re-make the connection with the same Session-ID\n");
138 BIO_printf(bio_err," -pause - sleep(1) after each read(2) and write(2) system call\n");
139 BIO_printf(bio_err," -showcerts - show all certificates in the chain\n");
140 BIO_printf(bio_err," -debug - extra output\n");
141 BIO_printf(bio_err," -nbio_test - more ssl protocol testing\n");
142 BIO_printf(bio_err," -state - print the 'ssl' states\n");
144 BIO_printf(bio_err," -nbio - Run with non-blocking IO\n");
146 BIO_printf(bio_err," -crlf - convert LF from terminal into CRLF\n");
147 BIO_printf(bio_err," -quiet - no s_client output\n");
148 BIO_printf(bio_err," -ign_eof - ignore input eof (default when -quiet)\n");
149 BIO_printf(bio_err," -ssl2 - just use SSLv2\n");
150 BIO_printf(bio_err," -ssl3 - just use SSLv3\n");
151 BIO_printf(bio_err," -tls1 - just use TLSv1\n");
152 BIO_printf(bio_err," -no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n");
153 BIO_printf(bio_err," -bugs - Switch on all SSL implementation bug workarounds\n");
154 BIO_printf(bio_err," -cipher - preferred cipher to use, use the 'openssl ciphers'\n");
155 BIO_printf(bio_err," command to see what is available\n");
156 BIO_printf(bio_err," -engine id - Initialise and use the specified engine\n");
160 int MAIN(int, char **);
162 int MAIN(int argc, char **argv)
165 SSL *con=NULL,*con2=NULL;
166 int s,k,width,state=0;
167 char *cbuf=NULL,*sbuf=NULL;
168 int cbuf_len,cbuf_off;
169 int sbuf_len,sbuf_off;
170 fd_set readfds,writefds;
173 char *host=SSL_HOST_NAME;
174 char *cert_file=NULL,*key_file=NULL;
175 char *CApath=NULL,*CAfile=NULL,*cipher=NULL;
176 int reconnect=0,badop=0,verify=SSL_VERIFY_NONE,bugs=0;
178 int write_tty,read_tty,write_ssl,read_ssl,tty_on,ssl_pending;
180 int ret=1,in_init=1,i,nbio_test=0;
182 SSL_METHOD *meth=NULL;
184 char *engine_id=NULL;
190 #if !defined(NO_SSL2) && !defined(NO_SSL3)
191 meth=SSLv23_client_method();
192 #elif !defined(NO_SSL3)
193 meth=SSLv3_client_method();
194 #elif !defined(NO_SSL2)
195 meth=SSLv2_client_method();
206 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
208 if ( ((cbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
209 ((sbuf=OPENSSL_malloc(BUFSIZZ)) == NULL))
211 BIO_printf(bio_err,"out of memory\n");
216 verify_error=X509_V_OK;
225 if (strcmp(*argv,"-host") == 0)
227 if (--argc < 1) goto bad;
230 else if (strcmp(*argv,"-port") == 0)
232 if (--argc < 1) goto bad;
233 port=atoi(*(++argv));
234 if (port == 0) goto bad;
236 else if (strcmp(*argv,"-connect") == 0)
238 if (--argc < 1) goto bad;
239 if (!extract_host_port(*(++argv),&host,NULL,&port))
242 else if (strcmp(*argv,"-verify") == 0)
244 verify=SSL_VERIFY_PEER;
245 if (--argc < 1) goto bad;
246 verify_depth=atoi(*(++argv));
247 BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
249 else if (strcmp(*argv,"-cert") == 0)
251 if (--argc < 1) goto bad;
252 cert_file= *(++argv);
254 else if (strcmp(*argv,"-prexit") == 0)
256 else if (strcmp(*argv,"-crlf") == 0)
258 else if (strcmp(*argv,"-quiet") == 0)
263 else if (strcmp(*argv,"-ign_eof") == 0)
265 else if (strcmp(*argv,"-pause") == 0)
267 else if (strcmp(*argv,"-debug") == 0)
269 else if (strcmp(*argv,"-showcerts") == 0)
271 else if (strcmp(*argv,"-nbio_test") == 0)
273 else if (strcmp(*argv,"-state") == 0)
276 else if (strcmp(*argv,"-ssl2") == 0)
277 meth=SSLv2_client_method();
280 else if (strcmp(*argv,"-ssl3") == 0)
281 meth=SSLv3_client_method();
284 else if (strcmp(*argv,"-tls1") == 0)
285 meth=TLSv1_client_method();
287 else if (strcmp(*argv,"-bugs") == 0)
289 else if (strcmp(*argv,"-key") == 0)
291 if (--argc < 1) goto bad;
294 else if (strcmp(*argv,"-reconnect") == 0)
298 else if (strcmp(*argv,"-CApath") == 0)
300 if (--argc < 1) goto bad;
303 else if (strcmp(*argv,"-CAfile") == 0)
305 if (--argc < 1) goto bad;
308 else if (strcmp(*argv,"-no_tls1") == 0)
309 off|=SSL_OP_NO_TLSv1;
310 else if (strcmp(*argv,"-no_ssl3") == 0)
311 off|=SSL_OP_NO_SSLv3;
312 else if (strcmp(*argv,"-no_ssl2") == 0)
313 off|=SSL_OP_NO_SSLv2;
314 else if (strcmp(*argv,"-cipher") == 0)
316 if (--argc < 1) goto bad;
320 else if (strcmp(*argv,"-nbio") == 0)
323 else if (strcmp(*argv,"-engine") == 0)
325 if (--argc < 1) goto bad;
326 engine_id = *(++argv);
330 BIO_printf(bio_err,"unknown option %s\n",*argv);
344 app_RAND_load_file(NULL, bio_err, 0);
346 if (bio_c_out == NULL)
350 bio_c_out=BIO_new(BIO_s_null());
354 if (bio_c_out == NULL)
355 bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE);
359 OpenSSL_add_ssl_algorithms();
360 SSL_load_error_strings();
362 if (engine_id != NULL)
364 if((e = ENGINE_by_id(engine_id)) == NULL)
366 BIO_printf(bio_err,"invalid engine\n");
367 ERR_print_errors(bio_err);
372 ENGINE_ctrl(e, ENGINE_CTRL_SET_LOGSTREAM,
375 if(!ENGINE_set_default(e, ENGINE_METHOD_ALL))
377 BIO_printf(bio_err,"can't use that engine\n");
378 ERR_print_errors(bio_err);
381 BIO_printf(bio_err,"engine \"%s\" set.\n", engine_id);
385 ctx=SSL_CTX_new(meth);
388 ERR_print_errors(bio_err);
393 SSL_CTX_set_options(ctx,SSL_OP_ALL|off);
395 SSL_CTX_set_options(ctx,off);
397 if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
399 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
400 BIO_printf(bio_err,"error setting cipher list\n");
401 ERR_print_errors(bio_err);
406 SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER"));
409 SSL_CTX_set_verify(ctx,verify,verify_callback);
410 if (!set_cert_stuff(ctx,cert_file,key_file))
413 if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
414 (!SSL_CTX_set_default_verify_paths(ctx)))
416 /* BIO_printf(bio_err,"error setting default verify locations\n"); */
417 ERR_print_errors(bio_err);
423 /* SSL_set_cipher_list(con,"RC4-MD5"); */
427 if (init_client(&s,host,port) == 0)
429 BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error());
433 BIO_printf(bio_c_out,"CONNECTED(%08X)\n",s);
439 BIO_printf(bio_c_out,"turning on non blocking io\n");
440 if (BIO_socket_ioctl(s,FIONBIO,&l) < 0)
442 ERR_print_errors(bio_err);
447 if (c_Pause & 0x01) con->debug=1;
448 sbio=BIO_new_socket(s,BIO_NOCLOSE);
454 test=BIO_new(BIO_f_nbio_test());
455 sbio=BIO_push(test,sbio);
461 BIO_set_callback(sbio,bio_dump_cb);
462 BIO_set_callback_arg(sbio,bio_c_out);
465 SSL_set_bio(con,sbio,sbio);
466 SSL_set_connect_state(con);
468 /* ok, lets connect */
469 width=SSL_get_fd(con)+1;
487 if (SSL_in_init(con) && !SSL_total_renegotiations(con))
498 print_stuff(bio_c_out,con,full_log);
499 if (full_log > 0) full_log--;
504 BIO_printf(bio_c_out,"drop connection and then reconnect\n");
506 SSL_set_connect_state(con);
507 SHUTDOWN(SSL_get_fd(con));
513 ssl_pending = read_ssl && SSL_pending(con);
520 if (read_tty) FD_SET(fileno(stdin),&readfds);
521 if (write_tty) FD_SET(fileno(stdout),&writefds);
524 FD_SET(SSL_get_fd(con),&readfds);
526 FD_SET(SSL_get_fd(con),&writefds);
528 if(!tty_on || !write_tty) {
530 FD_SET(SSL_get_fd(con),&readfds);
532 FD_SET(SSL_get_fd(con),&writefds);
535 /* printf("mode tty(%d %d%d) ssl(%d%d)\n",
536 tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
538 /* Note: under VMS with SOCKETSHR the second parameter
539 * is currently of type (int *) whereas under other
540 * systems it is (void *) if you don't have a cast it
541 * will choke the compiler: if you do have a cast then
542 * you can either go for (int *) or (void *).
545 /* Under Windows we make the assumption that we can
546 * always write to the tty: therefore if we need to
547 * write to the tty we just fall through. Otherwise
548 * we timeout the select every second and see if there
549 * are any keypresses. Note: this is a hack, in a proper
550 * Windows application we wouldn't do this.
557 i=select(width,(void *)&readfds,(void *)&writefds,
559 if(!i && (!((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) || !read_tty) ) continue;
560 } else i=select(width,(void *)&readfds,(void *)&writefds,
564 i=select(width,(void *)&readfds,(void *)&writefds,
569 BIO_printf(bio_err,"bad select %d\n",
570 get_last_socket_error());
576 if (!ssl_pending && FD_ISSET(SSL_get_fd(con),&writefds))
578 k=SSL_write(con,&(cbuf[cbuf_off]),
579 (unsigned int)cbuf_len);
580 switch (SSL_get_error(con,k))
585 if (k <= 0) goto end;
586 /* we have done a write(con,NULL,0); */
592 else /* if (cbuf_len > 0) */
598 case SSL_ERROR_WANT_WRITE:
599 BIO_printf(bio_c_out,"write W BLOCK\n");
603 case SSL_ERROR_WANT_READ:
604 BIO_printf(bio_c_out,"write R BLOCK\n");
609 case SSL_ERROR_WANT_X509_LOOKUP:
610 BIO_printf(bio_c_out,"write X BLOCK\n");
612 case SSL_ERROR_ZERO_RETURN:
615 BIO_printf(bio_c_out,"shutdown\n");
625 case SSL_ERROR_SYSCALL:
626 if ((k != 0) || (cbuf_len != 0))
628 BIO_printf(bio_err,"write:errno=%d\n",
629 get_last_socket_error());
639 ERR_print_errors(bio_err);
644 /* Assume Windows can always write */
645 else if (!ssl_pending && write_tty)
647 else if (!ssl_pending && FD_ISSET(fileno(stdout),&writefds))
650 #ifdef CHARSET_EBCDIC
651 ascii2ebcdic(&(sbuf[sbuf_off]),&(sbuf[sbuf_off]),sbuf_len);
653 i=write(fileno(stdout),&(sbuf[sbuf_off]),sbuf_len);
657 BIO_printf(bio_c_out,"DONE\n");
670 else if (ssl_pending || FD_ISSET(SSL_get_fd(con),&readfds))
673 { static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } }
676 k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ );
678 /* Demo for pending and peek :-) */
679 k=SSL_read(con,sbuf,16);
681 printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240));
685 switch (SSL_get_error(con,k))
696 case SSL_ERROR_WANT_WRITE:
697 BIO_printf(bio_c_out,"read W BLOCK\n");
701 case SSL_ERROR_WANT_READ:
702 BIO_printf(bio_c_out,"read R BLOCK\n");
705 if ((read_tty == 0) && (write_ssl == 0))
708 case SSL_ERROR_WANT_X509_LOOKUP:
709 BIO_printf(bio_c_out,"read X BLOCK\n");
711 case SSL_ERROR_SYSCALL:
712 BIO_printf(bio_err,"read:errno=%d\n",get_last_socket_error());
714 case SSL_ERROR_ZERO_RETURN:
715 BIO_printf(bio_c_out,"closed\n");
718 ERR_print_errors(bio_err);
725 else if ((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0)))
727 else if (FD_ISSET(fileno(stdin),&readfds))
734 i=read(fileno(stdin),cbuf,BUFSIZZ/2);
736 /* both loops are skipped when i <= 0 */
737 for (j = 0; j < i; j++)
740 for (j = i-1; j >= 0; j--)
742 cbuf[j+lf_num] = cbuf[j];
747 cbuf[j+lf_num] = '\r';
753 i=read(fileno(stdin),cbuf,BUFSIZZ);
755 if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q')))
757 BIO_printf(bio_err,"DONE\n");
761 if ((!c_ign_eof) && (cbuf[0] == 'R'))
763 BIO_printf(bio_err,"RENEGOTIATING\n");
764 SSL_renegotiate(con);
771 #ifdef CHARSET_EBCDIC
772 ebcdic2ascii(cbuf, cbuf, i);
782 SHUTDOWN(SSL_get_fd(con));
785 if(prexit) print_stuff(bio_c_out,con,1);
786 if (con != NULL) SSL_free(con);
787 if (con2 != NULL) SSL_free(con2);
788 if (ctx != NULL) SSL_CTX_free(ctx);
789 if (cbuf != NULL) { memset(cbuf,0,BUFSIZZ); OPENSSL_free(cbuf); }
790 if (sbuf != NULL) { memset(sbuf,0,BUFSIZZ); OPENSSL_free(sbuf); }
791 if (bio_c_out != NULL)
800 static void print_stuff(BIO *bio, SSL *s, int full)
804 static char *space=" ";
807 STACK_OF(X509_NAME) *sk2;
816 sk=SSL_get_peer_cert_chain(s);
819 got_a_chain = 1; /* we don't have it for SSL2 (yet) */
821 BIO_printf(bio,"---\nCertificate chain\n");
822 for (i=0; i<sk_X509_num(sk); i++)
824 X509_NAME_oneline(X509_get_subject_name(
825 sk_X509_value(sk,i)),buf,BUFSIZ);
826 BIO_printf(bio,"%2d s:%s\n",i,buf);
827 X509_NAME_oneline(X509_get_issuer_name(
828 sk_X509_value(sk,i)),buf,BUFSIZ);
829 BIO_printf(bio," i:%s\n",buf);
831 PEM_write_bio_X509(bio,sk_X509_value(sk,i));
835 BIO_printf(bio,"---\n");
836 peer=SSL_get_peer_certificate(s);
839 BIO_printf(bio,"Server certificate\n");
840 if (!(c_showcerts && got_a_chain)) /* Redundant if we showed the whole chain */
841 PEM_write_bio_X509(bio,peer);
842 X509_NAME_oneline(X509_get_subject_name(peer),
844 BIO_printf(bio,"subject=%s\n",buf);
845 X509_NAME_oneline(X509_get_issuer_name(peer),
847 BIO_printf(bio,"issuer=%s\n",buf);
850 BIO_printf(bio,"no peer certificate available\n");
852 sk2=SSL_get_client_CA_list(s);
853 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0))
855 BIO_printf(bio,"---\nAcceptable client certificate CA names\n");
856 for (i=0; i<sk_X509_NAME_num(sk2); i++)
858 xn=sk_X509_NAME_value(sk2,i);
859 X509_NAME_oneline(xn,buf,sizeof(buf));
860 BIO_write(bio,buf,strlen(buf));
861 BIO_write(bio,"\n",1);
866 BIO_printf(bio,"---\nNo client certificate CA names sent\n");
868 p=SSL_get_shared_ciphers(s,buf,BUFSIZ);
871 /* This works only for SSL 2. In later protocol
872 * versions, the client does not know what other
873 * ciphers (in addition to the one to be used
874 * in the current connection) the server supports. */
876 BIO_printf(bio,"---\nCiphers common between both SSL endpoints:\n");
882 BIO_write(bio,space,15-j%25);
885 BIO_write(bio,((i%3)?" ":"\n"),1);
894 BIO_write(bio,"\n",1);
897 BIO_printf(bio,"---\nSSL handshake has read %ld bytes and written %ld bytes\n",
898 BIO_number_read(SSL_get_rbio(s)),
899 BIO_number_written(SSL_get_wbio(s)));
901 BIO_printf(bio,((s->hit)?"---\nReused, ":"---\nNew, "));
902 c=SSL_get_current_cipher(s);
903 BIO_printf(bio,"%s, Cipher is %s\n",
904 SSL_CIPHER_get_version(c),
905 SSL_CIPHER_get_name(c));
908 pktmp = X509_get_pubkey(peer);
909 BIO_printf(bio,"Server public key is %d bit\n",
910 EVP_PKEY_bits(pktmp));
911 EVP_PKEY_free(pktmp);
913 SSL_SESSION_print(bio,SSL_get_session(s));
914 BIO_printf(bio,"---\n");