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/rand.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," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
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;
189 #if !defined(NO_SSL2) && !defined(NO_SSL3)
190 meth=SSLv23_client_method();
191 #elif !defined(NO_SSL3)
192 meth=SSLv3_client_method();
193 #elif !defined(NO_SSL2)
194 meth=SSLv2_client_method();
205 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
207 if ( ((cbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
208 ((sbuf=OPENSSL_malloc(BUFSIZZ)) == NULL))
210 BIO_printf(bio_err,"out of memory\n");
215 verify_error=X509_V_OK;
224 if (strcmp(*argv,"-host") == 0)
226 if (--argc < 1) goto bad;
229 else if (strcmp(*argv,"-port") == 0)
231 if (--argc < 1) goto bad;
232 port=atoi(*(++argv));
233 if (port == 0) goto bad;
235 else if (strcmp(*argv,"-connect") == 0)
237 if (--argc < 1) goto bad;
238 if (!extract_host_port(*(++argv),&host,NULL,&port))
241 else if (strcmp(*argv,"-verify") == 0)
243 verify=SSL_VERIFY_PEER;
244 if (--argc < 1) goto bad;
245 verify_depth=atoi(*(++argv));
246 BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
248 else if (strcmp(*argv,"-cert") == 0)
250 if (--argc < 1) goto bad;
251 cert_file= *(++argv);
253 else if (strcmp(*argv,"-prexit") == 0)
255 else if (strcmp(*argv,"-crlf") == 0)
257 else if (strcmp(*argv,"-quiet") == 0)
262 else if (strcmp(*argv,"-ign_eof") == 0)
264 else if (strcmp(*argv,"-pause") == 0)
266 else if (strcmp(*argv,"-debug") == 0)
268 else if (strcmp(*argv,"-showcerts") == 0)
270 else if (strcmp(*argv,"-nbio_test") == 0)
272 else if (strcmp(*argv,"-state") == 0)
275 else if (strcmp(*argv,"-ssl2") == 0)
276 meth=SSLv2_client_method();
279 else if (strcmp(*argv,"-ssl3") == 0)
280 meth=SSLv3_client_method();
283 else if (strcmp(*argv,"-tls1") == 0)
284 meth=TLSv1_client_method();
286 else if (strcmp(*argv,"-bugs") == 0)
288 else if (strcmp(*argv,"-key") == 0)
290 if (--argc < 1) goto bad;
293 else if (strcmp(*argv,"-reconnect") == 0)
297 else if (strcmp(*argv,"-CApath") == 0)
299 if (--argc < 1) goto bad;
302 else if (strcmp(*argv,"-CAfile") == 0)
304 if (--argc < 1) goto bad;
307 else if (strcmp(*argv,"-no_tls1") == 0)
308 off|=SSL_OP_NO_TLSv1;
309 else if (strcmp(*argv,"-no_ssl3") == 0)
310 off|=SSL_OP_NO_SSLv3;
311 else if (strcmp(*argv,"-no_ssl2") == 0)
312 off|=SSL_OP_NO_SSLv2;
313 else if (strcmp(*argv,"-cipher") == 0)
315 if (--argc < 1) goto bad;
319 else if (strcmp(*argv,"-nbio") == 0)
322 else if (strcmp(*argv,"-rand") == 0)
324 if (--argc < 1) goto bad;
329 BIO_printf(bio_err,"unknown option %s\n",*argv);
343 if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
346 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
349 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
350 app_RAND_load_files(inrand));
352 if (bio_c_out == NULL)
356 bio_c_out=BIO_new(BIO_s_null());
360 if (bio_c_out == NULL)
361 bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE);
365 OpenSSL_add_ssl_algorithms();
366 SSL_load_error_strings();
367 ctx=SSL_CTX_new(meth);
370 ERR_print_errors(bio_err);
375 SSL_CTX_set_options(ctx,SSL_OP_ALL|off);
377 SSL_CTX_set_options(ctx,off);
379 if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
381 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
382 BIO_printf(bio_err,"error setting cipher list\n");
383 ERR_print_errors(bio_err);
388 SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER"));
391 SSL_CTX_set_verify(ctx,verify,verify_callback);
392 if (!set_cert_stuff(ctx,cert_file,key_file))
395 if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
396 (!SSL_CTX_set_default_verify_paths(ctx)))
398 /* BIO_printf(bio_err,"error setting default verify locations\n"); */
399 ERR_print_errors(bio_err);
405 /* SSL_set_cipher_list(con,"RC4-MD5"); */
409 if (init_client(&s,host,port) == 0)
411 BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error());
415 BIO_printf(bio_c_out,"CONNECTED(%08X)\n",s);
421 BIO_printf(bio_c_out,"turning on non blocking io\n");
422 if (BIO_socket_ioctl(s,FIONBIO,&l) < 0)
424 ERR_print_errors(bio_err);
429 if (c_Pause & 0x01) con->debug=1;
430 sbio=BIO_new_socket(s,BIO_NOCLOSE);
436 test=BIO_new(BIO_f_nbio_test());
437 sbio=BIO_push(test,sbio);
443 BIO_set_callback(sbio,bio_dump_cb);
444 BIO_set_callback_arg(sbio,bio_c_out);
447 SSL_set_bio(con,sbio,sbio);
448 SSL_set_connect_state(con);
450 /* ok, lets connect */
451 width=SSL_get_fd(con)+1;
469 if (SSL_in_init(con) && !SSL_total_renegotiations(con))
480 print_stuff(bio_c_out,con,full_log);
481 if (full_log > 0) full_log--;
486 BIO_printf(bio_c_out,"drop connection and then reconnect\n");
488 SSL_set_connect_state(con);
489 SHUTDOWN(SSL_get_fd(con));
495 ssl_pending = read_ssl && SSL_pending(con);
502 if (read_tty) FD_SET(fileno(stdin),&readfds);
503 if (write_tty) FD_SET(fileno(stdout),&writefds);
506 FD_SET(SSL_get_fd(con),&readfds);
508 FD_SET(SSL_get_fd(con),&writefds);
510 if(!tty_on || !write_tty) {
512 FD_SET(SSL_get_fd(con),&readfds);
514 FD_SET(SSL_get_fd(con),&writefds);
517 /* printf("mode tty(%d %d%d) ssl(%d%d)\n",
518 tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
520 /* Note: under VMS with SOCKETSHR the second parameter
521 * is currently of type (int *) whereas under other
522 * systems it is (void *) if you don't have a cast it
523 * will choke the compiler: if you do have a cast then
524 * you can either go for (int *) or (void *).
527 /* Under Windows we make the assumption that we can
528 * always write to the tty: therefore if we need to
529 * write to the tty we just fall through. Otherwise
530 * we timeout the select every second and see if there
531 * are any keypresses. Note: this is a hack, in a proper
532 * Windows application we wouldn't do this.
539 i=select(width,(void *)&readfds,(void *)&writefds,
541 if(!i && (!((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) || !read_tty) ) continue;
542 } else i=select(width,(void *)&readfds,(void *)&writefds,
546 i=select(width,(void *)&readfds,(void *)&writefds,
551 BIO_printf(bio_err,"bad select %d\n",
552 get_last_socket_error());
558 if (!ssl_pending && FD_ISSET(SSL_get_fd(con),&writefds))
560 k=SSL_write(con,&(cbuf[cbuf_off]),
561 (unsigned int)cbuf_len);
562 switch (SSL_get_error(con,k))
567 if (k <= 0) goto end;
568 /* we have done a write(con,NULL,0); */
574 else /* if (cbuf_len > 0) */
580 case SSL_ERROR_WANT_WRITE:
581 BIO_printf(bio_c_out,"write W BLOCK\n");
585 case SSL_ERROR_WANT_READ:
586 BIO_printf(bio_c_out,"write R BLOCK\n");
591 case SSL_ERROR_WANT_X509_LOOKUP:
592 BIO_printf(bio_c_out,"write X BLOCK\n");
594 case SSL_ERROR_ZERO_RETURN:
597 BIO_printf(bio_c_out,"shutdown\n");
607 case SSL_ERROR_SYSCALL:
608 if ((k != 0) || (cbuf_len != 0))
610 BIO_printf(bio_err,"write:errno=%d\n",
611 get_last_socket_error());
621 ERR_print_errors(bio_err);
626 /* Assume Windows can always write */
627 else if (!ssl_pending && write_tty)
629 else if (!ssl_pending && FD_ISSET(fileno(stdout),&writefds))
632 #ifdef CHARSET_EBCDIC
633 ascii2ebcdic(&(sbuf[sbuf_off]),&(sbuf[sbuf_off]),sbuf_len);
635 i=write(fileno(stdout),&(sbuf[sbuf_off]),sbuf_len);
639 BIO_printf(bio_c_out,"DONE\n");
652 else if (ssl_pending || FD_ISSET(SSL_get_fd(con),&readfds))
655 { static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } }
658 k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ );
660 /* Demo for pending and peek :-) */
661 k=SSL_read(con,sbuf,16);
663 printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240));
667 switch (SSL_get_error(con,k))
678 case SSL_ERROR_WANT_WRITE:
679 BIO_printf(bio_c_out,"read W BLOCK\n");
683 case SSL_ERROR_WANT_READ:
684 BIO_printf(bio_c_out,"read R BLOCK\n");
687 if ((read_tty == 0) && (write_ssl == 0))
690 case SSL_ERROR_WANT_X509_LOOKUP:
691 BIO_printf(bio_c_out,"read X BLOCK\n");
693 case SSL_ERROR_SYSCALL:
694 BIO_printf(bio_err,"read:errno=%d\n",get_last_socket_error());
696 case SSL_ERROR_ZERO_RETURN:
697 BIO_printf(bio_c_out,"closed\n");
700 ERR_print_errors(bio_err);
707 else if ((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0)))
709 else if (FD_ISSET(fileno(stdin),&readfds))
716 i=read(fileno(stdin),cbuf,BUFSIZZ/2);
718 /* both loops are skipped when i <= 0 */
719 for (j = 0; j < i; j++)
722 for (j = i-1; j >= 0; j--)
724 cbuf[j+lf_num] = cbuf[j];
729 cbuf[j+lf_num] = '\r';
735 i=read(fileno(stdin),cbuf,BUFSIZZ);
737 if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q')))
739 BIO_printf(bio_err,"DONE\n");
743 if ((!c_ign_eof) && (cbuf[0] == 'R'))
745 BIO_printf(bio_err,"RENEGOTIATING\n");
746 SSL_renegotiate(con);
753 #ifdef CHARSET_EBCDIC
754 ebcdic2ascii(cbuf, cbuf, i);
764 SHUTDOWN(SSL_get_fd(con));
767 if(prexit) print_stuff(bio_c_out,con,1);
768 if (con != NULL) SSL_free(con);
769 if (con2 != NULL) SSL_free(con2);
770 if (ctx != NULL) SSL_CTX_free(ctx);
771 if (cbuf != NULL) { memset(cbuf,0,BUFSIZZ); OPENSSL_free(cbuf); }
772 if (sbuf != NULL) { memset(sbuf,0,BUFSIZZ); OPENSSL_free(sbuf); }
773 if (bio_c_out != NULL)
782 static void print_stuff(BIO *bio, SSL *s, int full)
786 static char *space=" ";
789 STACK_OF(X509_NAME) *sk2;
798 sk=SSL_get_peer_cert_chain(s);
801 got_a_chain = 1; /* we don't have it for SSL2 (yet) */
803 BIO_printf(bio,"---\nCertificate chain\n");
804 for (i=0; i<sk_X509_num(sk); i++)
806 X509_NAME_oneline(X509_get_subject_name(
807 sk_X509_value(sk,i)),buf,BUFSIZ);
808 BIO_printf(bio,"%2d s:%s\n",i,buf);
809 X509_NAME_oneline(X509_get_issuer_name(
810 sk_X509_value(sk,i)),buf,BUFSIZ);
811 BIO_printf(bio," i:%s\n",buf);
813 PEM_write_bio_X509(bio,sk_X509_value(sk,i));
817 BIO_printf(bio,"---\n");
818 peer=SSL_get_peer_certificate(s);
821 BIO_printf(bio,"Server certificate\n");
822 if (!(c_showcerts && got_a_chain)) /* Redundant if we showed the whole chain */
823 PEM_write_bio_X509(bio,peer);
824 X509_NAME_oneline(X509_get_subject_name(peer),
826 BIO_printf(bio,"subject=%s\n",buf);
827 X509_NAME_oneline(X509_get_issuer_name(peer),
829 BIO_printf(bio,"issuer=%s\n",buf);
832 BIO_printf(bio,"no peer certificate available\n");
834 sk2=SSL_get_client_CA_list(s);
835 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0))
837 BIO_printf(bio,"---\nAcceptable client certificate CA names\n");
838 for (i=0; i<sk_X509_NAME_num(sk2); i++)
840 xn=sk_X509_NAME_value(sk2,i);
841 X509_NAME_oneline(xn,buf,sizeof(buf));
842 BIO_write(bio,buf,strlen(buf));
843 BIO_write(bio,"\n",1);
848 BIO_printf(bio,"---\nNo client certificate CA names sent\n");
850 p=SSL_get_shared_ciphers(s,buf,BUFSIZ);
853 /* This works only for SSL 2. In later protocol
854 * versions, the client does not know what other
855 * ciphers (in addition to the one to be used
856 * in the current connection) the server supports. */
858 BIO_printf(bio,"---\nCiphers common between both SSL endpoints:\n");
864 BIO_write(bio,space,15-j%25);
867 BIO_write(bio,((i%3)?" ":"\n"),1);
876 BIO_write(bio,"\n",1);
879 BIO_printf(bio,"---\nSSL handshake has read %ld bytes and written %ld bytes\n",
880 BIO_number_read(SSL_get_rbio(s)),
881 BIO_number_written(SSL_get_wbio(s)));
883 BIO_printf(bio,((s->hit)?"---\nReused, ":"---\nNew, "));
884 c=SSL_get_current_cipher(s);
885 BIO_printf(bio,"%s, Cipher is %s\n",
886 SSL_CIPHER_get_version(c),
887 SSL_CIPHER_get_name(c));
890 pktmp = X509_get_pubkey(peer);
891 BIO_printf(bio,"Server public key is %d bit\n",
892 EVP_PKEY_bits(pktmp));
893 EVP_PKEY_free(pktmp);
895 SSL_SESSION_print(bio,SSL_get_session(s));
896 BIO_printf(bio,"---\n");