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Don't fail on an out-of-order CCS in DTLS
[thirdparty/openssl.git] / apps / s_client.c
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846e33c7 1/*
48e5119a 2 * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
c80149d9 3 * Copyright 2005 Nokia. All rights reserved.
a661b653 4 *
846e33c7
RS		 5 * Licensed under the OpenSSL license (the "License"). You may not use
6 * this file except in compliance with the License. You can obtain a copy
7 * in the file LICENSE in the source distribution or at
8 * https://www.openssl.org/source/license.html
a661b653 9 */
846e33c7 10
07016a8a 11#include "e_os.h"
ddac1974 12#include <ctype.h>
8c197cc5
UM		 13#include <stdio.h>
14#include <stdlib.h>
15#include <string.h>
cddd424a 16#include <errno.h>
be1bd923 17#include <openssl/e_os2.h>
7e1b7485 18
f9e55034
MC		 19#ifndef OPENSSL_NO_SOCK
20
0f113f3e
MC		 21/*
22 * With IPv6, it looks like Digital has mixed up the proper order of
23 * recursive header file inclusion, resulting in the compiler complaining
24 * that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which is
25 * needed to have fileno() declared correctly... So let's define u_int
26 */
bc36ee62 27#if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
0f113f3e 28# define __U_INT
7d7d2cbc
UM		 29typedef unsigned int u_int;
30#endif
31
d02b48c6 32#include "apps.h"
dab2cd68 33#include "progs.h"
ec577822
BM		 34#include <openssl/x509.h>
35#include <openssl/ssl.h>
36#include <openssl/err.h>
37#include <openssl/pem.h>
1372965e 38#include <openssl/rand.h>
67c8e7f4 39#include <openssl/ocsp.h>
1e26a8ba 40#include <openssl/bn.h>
5e6f9775 41#include <openssl/async.h>
edc032b5 42#ifndef OPENSSL_NO_SRP
0f113f3e 43# include <openssl/srp.h>
edc032b5 44#endif
dd696a55
RP		 45#ifndef OPENSSL_NO_CT
46# include <openssl/ct.h>
47#endif
d02b48c6 48#include "s_apps.h"
36d16f8e 49#include "timeouts.h"
0e97f1e1 50#include "internal/sockets.h"
d02b48c6 51
efc943be
EK		 52#if defined(__has_feature)
53# if __has_feature(memory_sanitizer)
54# include <sanitizer/msan_interface.h>
55# endif
56#endif
57
d02b48c6
RE		 58#undef BUFSIZZ
59#define BUFSIZZ 1024*8
cfb4f1ef 60#define S_CLIENT_IRC_READ_TIMEOUT 8
d02b48c6 61
cddd424a 62static char *prog;
7e1b7485 63static int c_debug = 0;
0f113f3e 64static int c_showcerts = 0;
0f113f3e
MC		 65static char *keymatexportlabel = NULL;
66static int keymatexportlen = 20;
0f113f3e 67static BIO *bio_c_out = NULL;
0f113f3e 68static int c_quiet = 0;
be62b22b 69static char *sess_out = NULL;
e261bdd1 70static SSL_SESSION *psksess = NULL;
d02b48c6 71
0d4d5ab8 72static void print_stuff(BIO *berr, SSL *con, int full);
3e41ac35 73#ifndef OPENSSL_NO_OCSP
7e1b7485 74static int ocsp_resp_cb(SSL *s, void *arg);
3e41ac35 75#endif
398b0bbd 76static int ldap_ExtendedResponse_parse(const char *buf, long rem);
7e1b7485 77
cddd424a
VD		 78static int saved_errno;
79
80static void save_errno(void)
81{
82 saved_errno = errno;
83 errno = 0;
84}
85
86static int restore_errno(void)
87{
88 int ret = errno;
89 errno = saved_errno;
90 return ret;
91}
92
ec447924
MC		 93static void do_ssl_shutdown(SSL *ssl)
94{
95 int ret;
96
97 do {
98 /* We only do unidirectional shutdown */
99 ret = SSL_shutdown(ssl);
100 if (ret < 0) {
101 switch (SSL_get_error(ssl, ret)) {
102 case SSL_ERROR_WANT_READ:
103 case SSL_ERROR_WANT_WRITE:
104 case SSL_ERROR_WANT_ASYNC:
fc7f190c 105 case SSL_ERROR_WANT_ASYNC_JOB:
ec447924
MC		 106 /* We just do busy waiting. Nothing clever */
107 continue;
108 }
109 ret = 0;
110 }
111 } while (ret < 0);
112}
113
ddac1974 114/* Default PSK identity and key */
0f113f3e 115static char *psk_identity = "Client_identity";
ddac1974 116
14e35350 117#ifndef OPENSSL_NO_PSK
ddac1974 118static unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity,
0f113f3e
MC		 119 unsigned int max_identity_len,
120 unsigned char *psk,
121 unsigned int max_psk_len)
122{
0f113f3e 123 int ret;
6ec6d520
DSH		 124 long key_len;
125 unsigned char *key;
0f113f3e
MC		 126
127 if (c_debug)
128 BIO_printf(bio_c_out, "psk_client_cb\n");
129 if (!hint) {
130 /* no ServerKeyExchange message */
131 if (c_debug)
132 BIO_printf(bio_c_out,
133 "NULL received PSK identity hint, continuing anyway\n");
2234212c 134 } else if (c_debug) {
0f113f3e 135 BIO_printf(bio_c_out, "Received PSK identity hint '%s'\n", hint);
2234212c 136 }
0f113f3e
MC		 137
138 /*
139 * lookup PSK identity and PSK key based on the given identity hint here
140 */
141 ret = BIO_snprintf(identity, max_identity_len, "%s", psk_identity);
142 if (ret < 0 || (unsigned int)ret > max_identity_len)
143 goto out_err;
144 if (c_debug)
145 BIO_printf(bio_c_out, "created identity '%s' len=%d\n", identity,
146 ret);
6ec6d520
DSH		 147
148 /* convert the PSK key to binary */
149 key = OPENSSL_hexstr2buf(psk_key, &key_len);
150 if (key == NULL) {
151 BIO_printf(bio_err, "Could not convert PSK key '%s' to buffer\n",
0f113f3e 152 psk_key);
0f113f3e
MC		 153 return 0;
154 }
96a5d7fd 155 if (max_psk_len > INT_MAX || key_len > (long)max_psk_len) {
0f113f3e 156 BIO_printf(bio_err,
6ec6d520
DSH		 157 "psk buffer of callback is too small (%d) for key (%ld)\n",
158 max_psk_len, key_len);
159 OPENSSL_free(key);
0f113f3e
MC		 160 return 0;
161 }
ddac1974 162
6ec6d520
DSH		 163 memcpy(psk, key, key_len);
164 OPENSSL_free(key);
ddac1974 165
0f113f3e 166 if (c_debug)
6ec6d520 167 BIO_printf(bio_c_out, "created PSK len=%ld\n", key_len);
0f113f3e 168
6ec6d520 169 return key_len;
ddac1974 170 out_err:
0f113f3e
MC		 171 if (c_debug)
172 BIO_printf(bio_err, "Error in PSK client callback\n");
173 return 0;
174}
ddac1974
NL		 175#endif
176
adfc3786
MC		 177const unsigned char tls13_aes128gcmsha256_id[] = { 0x13, 0x01 };
178const unsigned char tls13_aes256gcmsha384_id[] = { 0x13, 0x02 };
5ffff599 179
e261bdd1
MC		 180static int psk_use_session_cb(SSL *s, const EVP_MD *md,
181 const unsigned char **id, size_t *idlen,
182 SSL_SESSION **sess)
183{
5ffff599
MC		 184 SSL_SESSION *usesess = NULL;
185 const SSL_CIPHER *cipher = NULL;
186
187 if (psksess != NULL) {
188 SSL_SESSION_up_ref(psksess);
189 usesess = psksess;
190 } else {
191 long key_len;
192 unsigned char *key = OPENSSL_hexstr2buf(psk_key, &key_len);
193
194 if (key == NULL) {
195 BIO_printf(bio_err, "Could not convert PSK key '%s' to buffer\n",
196 psk_key);
197 return 0;
198 }
199
e73c6eae
MC		 200 /* We default to SHA-256 */
201 cipher = SSL_CIPHER_find(s, tls13_aes128gcmsha256_id);
5ffff599 202 if (cipher == NULL) {
e73c6eae
MC		 203 BIO_printf(bio_err, "Error finding suitable ciphersuite\n");
204 return 0;
5ffff599 205 }
e73c6eae 206
5ffff599
MC		 207 usesess = SSL_SESSION_new();
208 if (usesess == NULL
209 || !SSL_SESSION_set1_master_key(usesess, key, key_len)
210 || !SSL_SESSION_set_cipher(usesess, cipher)
211 || !SSL_SESSION_set_protocol_version(usesess, TLS1_3_VERSION)) {
212 OPENSSL_free(key);
213 goto err;
214 }
215 OPENSSL_free(key);
216 }
217
218 cipher = SSL_SESSION_get0_cipher(usesess);
e261bdd1 219 if (cipher == NULL)
5ffff599 220 goto err;
e261bdd1 221
dc87d5a9
MC		 222 if (md != NULL && SSL_CIPHER_get_handshake_digest(cipher) != md) {
223 /* PSK not usable, ignore it */
224 *id = NULL;
225 *idlen = 0;
226 *sess = NULL;
227 SSL_SESSION_free(usesess);
228 } else {
229 *sess = usesess;
230 *id = (unsigned char *)psk_identity;
231 *idlen = strlen(psk_identity);
232 }
e261bdd1
MC		 233
234 return 1;
5ffff599
MC		 235
236 err:
237 SSL_SESSION_free(usesess);
238 return 0;
e261bdd1
MC		 239}
240
ed3883d2
BM		 241/* This is a context that we pass to callbacks */
242typedef struct tlsextctx_st {
0f113f3e
MC		 243 BIO *biodebug;
244 int ack;
ed3883d2
BM		 245} tlsextctx;
246
6d23cf97 247static int ssl_servername_cb(SSL *s, int *ad, void *arg)
0f113f3e
MC		 248{
249 tlsextctx *p = (tlsextctx *) arg;
250 const char *hn = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
251 if (SSL_get_servername_type(s) != -1)
252 p->ack = !SSL_session_reused(s) && hn != NULL;
253 else
254 BIO_printf(bio_err, "Can't use SSL_get_servername\n");
255
256 return SSL_TLSEXT_ERR_OK;
257}
ee2ffc27 258
e481f9b9 259#ifndef OPENSSL_NO_SRP
edc032b5
BL		 260
261/* This is a context that we pass to all callbacks */
0f113f3e
MC		 262typedef struct srp_arg_st {
263 char *srppassin;
264 char *srplogin;
265 int msg; /* copy from c_msg */
266 int debug; /* copy from c_debug */
267 int amp; /* allow more groups */
bde136c8 268 int strength; /* minimal size for N */
0f113f3e
MC		 269} SRP_ARG;
270
e481f9b9 271# define SRP_NUMBER_ITERATIONS_FOR_PRIME 64
edc032b5 272
f2fc3075 273static int srp_Verify_N_and_g(const BIGNUM *N, const BIGNUM *g)
0f113f3e
MC		 274{
275 BN_CTX *bn_ctx = BN_CTX_new();
276 BIGNUM *p = BN_new();
277 BIGNUM *r = BN_new();
278 int ret =
279 g != NULL && N != NULL && bn_ctx != NULL && BN_is_odd(N) &&
748e8530 280 BN_is_prime_ex(N, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) == 1 &&
0f113f3e
MC		 281 p != NULL && BN_rshift1(p, N) &&
282 /* p = (N-1)/2 */
748e8530 283 BN_is_prime_ex(p, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) == 1 &&
0f113f3e
MC		 284 r != NULL &&
285 /* verify g^((N-1)/2) == -1 (mod N) */
286 BN_mod_exp(r, g, p, N, bn_ctx) &&
287 BN_add_word(r, 1) && BN_cmp(r, N) == 0;
288
23a1d5e9
RS		 289 BN_free(r);
290 BN_free(p);
291 BN_CTX_free(bn_ctx);
0f113f3e
MC		 292 return ret;
293}
edc032b5 294
c80fd6b2
MC		 295/*-
296 * This callback is used here for two purposes:
297 * - extended debugging
298 * - making some primality tests for unknown groups
299 * The callback is only called for a non default group.
300 *
301 * An application does not need the call back at all if
bde136c8 302 * only the standard groups are used. In real life situations,
0f113f3e
MC		 303 * client and server already share well known groups,
304 * thus there is no need to verify them.
c80fd6b2 305 * Furthermore, in case that a server actually proposes a group that
0f113f3e
MC		 306 * is not one of those defined in RFC 5054, it is more appropriate
307 * to add the group to a static list and then compare since
c80fd6b2
MC		 308 * primality tests are rather cpu consuming.
309 */
f2fc3075 310
6d23cf97 311static int ssl_srp_verify_param_cb(SSL *s, void *arg)
0f113f3e
MC		 312{
313 SRP_ARG *srp_arg = (SRP_ARG *)arg;
314 BIGNUM *N = NULL, *g = NULL;
75ebbd9a
RS		 315
316 if (((N = SSL_get_srp_N(s)) == NULL) || ((g = SSL_get_srp_g(s)) == NULL))
0f113f3e
MC		 317 return 0;
318 if (srp_arg->debug || srp_arg->msg || srp_arg->amp == 1) {
319 BIO_printf(bio_err, "SRP parameters:\n");
320 BIO_printf(bio_err, "\tN=");
321 BN_print(bio_err, N);
322 BIO_printf(bio_err, "\n\tg=");
323 BN_print(bio_err, g);
324 BIO_printf(bio_err, "\n");
325 }
326
327 if (SRP_check_known_gN_param(g, N))
328 return 1;
329
330 if (srp_arg->amp == 1) {
331 if (srp_arg->debug)
332 BIO_printf(bio_err,
333 "SRP param N and g are not known params, going to check deeper.\n");
334
335 /*
336 * The srp_moregroups is a real debugging feature. Implementors
337 * should rather add the value to the known ones. The minimal size
338 * has already been tested.
339 */
340 if (BN_num_bits(g) <= BN_BITS && srp_Verify_N_and_g(N, g))
341 return 1;
342 }
343 BIO_printf(bio_err, "SRP param N and g rejected.\n");
344 return 0;
345}
edc032b5 346
e481f9b9 347# define PWD_STRLEN 1024
0f113f3e
MC		 348
349static char *ssl_give_srp_client_pwd_cb(SSL *s, void *arg)
350{
351 SRP_ARG *srp_arg = (SRP_ARG *)arg;
68dc6824 352 char *pass = app_malloc(PWD_STRLEN + 1, "SRP password buffer");
0f113f3e
MC		 353 PW_CB_DATA cb_tmp;
354 int l;
355
356 cb_tmp.password = (char *)srp_arg->srppassin;
357 cb_tmp.prompt_info = "SRP user";
358 if ((l = password_callback(pass, PWD_STRLEN, 0, &cb_tmp)) < 0) {
359 BIO_printf(bio_err, "Can't read Password\n");
360 OPENSSL_free(pass);
361 return NULL;
362 }
363 *(pass + l) = '\0';
364
365 return pass;
366}
367
e481f9b9 368#endif
7e1b7485 369
e481f9b9 370#ifndef OPENSSL_NO_NEXTPROTONEG
ee2ffc27
BL		 371/* This the context that we pass to next_proto_cb */
372typedef struct tlsextnextprotoctx_st {
0f113f3e 373 unsigned char *data;
817cd0d5 374 size_t len;
0f113f3e 375 int status;
ee2ffc27
BL		 376} tlsextnextprotoctx;
377
378static tlsextnextprotoctx next_proto;
379
0f113f3e
MC		 380static int next_proto_cb(SSL *s, unsigned char **out, unsigned char *outlen,
381 const unsigned char *in, unsigned int inlen,
382 void *arg)
383{
384 tlsextnextprotoctx *ctx = arg;
385
386 if (!c_quiet) {
387 /* We can assume that |in| is syntactically valid. */
388 unsigned i;
389 BIO_printf(bio_c_out, "Protocols advertised by server: ");
390 for (i = 0; i < inlen;) {
391 if (i)
392 BIO_write(bio_c_out, ", ", 2);
393 BIO_write(bio_c_out, &in[i + 1], in[i]);
394 i += in[i] + 1;
395 }
396 BIO_write(bio_c_out, "\n", 1);
397 }
398
399 ctx->status =
400 SSL_select_next_proto(out, outlen, in, inlen, ctx->data, ctx->len);
401 return SSL_TLSEXT_ERR_OK;
402}
e481f9b9 403#endif /* ndef OPENSSL_NO_NEXTPROTONEG */
0f113f3e
MC		 404
405static int serverinfo_cli_parse_cb(SSL *s, unsigned int ext_type,
406 const unsigned char *in, size_t inlen,
407 int *al, void *arg)
85c67492 408{
0f113f3e
MC		 409 char pem_name[100];
410 unsigned char ext_buf[4 + 65536];
411
412 /* Reconstruct the type/len fields prior to extension data */
3a63c0ed
AP		 413 inlen &= 0xffff; /* for formal memcmpy correctness */
414 ext_buf[0] = (unsigned char)(ext_type >> 8);
415 ext_buf[1] = (unsigned char)(ext_type);
416 ext_buf[2] = (unsigned char)(inlen >> 8);
417 ext_buf[3] = (unsigned char)(inlen);
0f113f3e
MC		 418 memcpy(ext_buf + 4, in, inlen);
419
420 BIO_snprintf(pem_name, sizeof(pem_name), "SERVERINFO FOR EXTENSION %d",
421 ext_type);
422 PEM_write_bio(bio_c_out, pem_name, "", ext_buf, 4 + inlen);
423 return 1;
424}
425
cddd424a
VD		 426/*
427 * Hex decoder that tolerates optional whitespace. Returns number of bytes
428 * produced, advances inptr to end of input string.
429 */
430static ossl_ssize_t hexdecode(const char **inptr, void *result)
431{
432 unsigned char **out = (unsigned char **)result;
433 const char *in = *inptr;
d6073e27 434 unsigned char *ret = app_malloc(strlen(in) / 2, "hexdecode");
cddd424a
VD		 435 unsigned char *cp = ret;
436 uint8_t byte;
437 int nibble = 0;
438
439 if (ret == NULL)
440 return -1;
441
442 for (byte = 0; *in; ++in) {
49445f21 443 int x;
cddd424a 444
18295f0c 445 if (isspace(_UC(*in)))
cddd424a 446 continue;
49445f21
RS		 447 x = OPENSSL_hexchar2int(*in);
448 if (x < 0) {
cddd424a
VD		 449 OPENSSL_free(ret);
450 return 0;
451 }
49445f21 452 byte |= (char)x;
cddd424a
VD		 453 if ((nibble ^= 1) == 0) {
454 *cp++ = byte;
455 byte = 0;
456 } else {
457 byte <<= 4;
458 }
459 }
460 if (nibble != 0) {
461 OPENSSL_free(ret);
462 return 0;
463 }
464 *inptr = in;
465
466 return cp - (*out = ret);
467}
468
469/*
470 * Decode unsigned 0..255, returns 1 on success, <= 0 on failure. Advances
471 * inptr to next field skipping leading whitespace.
472 */
473static ossl_ssize_t checked_uint8(const char **inptr, void *out)
474{
475 uint8_t *result = (uint8_t *)out;
476 const char *in = *inptr;
477 char *endp;
478 long v;
479 int e;
480
481 save_errno();
482 v = strtol(in, &endp, 10);
483 e = restore_errno();
484
485 if (((v == LONG_MIN || v == LONG_MAX) && e == ERANGE) ||
18295f0c 486 endp == in || !isspace(_UC(*endp)) ||
cddd424a
VD		 487 v != (*result = (uint8_t) v)) {
488 return -1;
489 }
18295f0c 490 for (in = endp; isspace(_UC(*in)); ++in)
cddd424a
VD		 491 continue;
492
493 *inptr = in;
494 return 1;
495}
496
7ff970ef
RS		 497struct tlsa_field {
498 void *var;
499 const char *name;
500 ossl_ssize_t (*parser)(const char **, void *);
501};
502
cddd424a
VD		 503static int tlsa_import_rr(SSL *con, const char *rrdata)
504{
7ff970ef
RS		 505 /* Not necessary to re-init these values; the "parsers" do that. */
506 static uint8_t usage;
507 static uint8_t selector;
508 static uint8_t mtype;
509 static unsigned char *data;
f232d6ec 510 static struct tlsa_field tlsa_fields[] = {
cddd424a
VD		 511 { &usage, "usage", checked_uint8 },
512 { &selector, "selector", checked_uint8 },
513 { &mtype, "mtype", checked_uint8 },
514 { &data, "data", hexdecode },
515 { NULL, }
516 };
517 struct tlsa_field *f;
7ff970ef
RS		 518 int ret;
519 const char *cp = rrdata;
520 ossl_ssize_t len = 0;
cddd424a
VD		 521
522 for (f = tlsa_fields; f->var; ++f) {
523 /* Returns number of bytes produced, advances cp to next field */
524 if ((len = f->parser(&cp, f->var)) <= 0) {
525 BIO_printf(bio_err, "%s: warning: bad TLSA %s field in: %s\n",
526 prog, f->name, rrdata);
527 return 0;
528 }
529 }
530 /* The data field is last, so len is its length */
531 ret = SSL_dane_tlsa_add(con, usage, selector, mtype, data, len);
532 OPENSSL_free(data);
533
534 if (ret == 0) {
535 ERR_print_errors(bio_err);
536 BIO_printf(bio_err, "%s: warning: unusable TLSA rrdata: %s\n",
537 prog, rrdata);
538 return 0;
539 }
540 if (ret < 0) {
541 ERR_print_errors(bio_err);
542 BIO_printf(bio_err, "%s: warning: error loading TLSA rrdata: %s\n",
543 prog, rrdata);
544 return 0;
545 }
546 return ret;
547}
548
549static int tlsa_import_rrset(SSL *con, STACK_OF(OPENSSL_STRING) *rrset)
550{
551 int num = sk_OPENSSL_STRING_num(rrset);
552 int count = 0;
553 int i;
554
555 for (i = 0; i < num; ++i) {
556 char *rrdata = sk_OPENSSL_STRING_value(rrset, i);
557 if (tlsa_import_rr(con, rrdata) > 0)
558 ++count;
559 }
560 return count > 0;
561}
562
7e1b7485
RS		 563typedef enum OPTION_choice {
564 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
ebc01683 565 OPT_4, OPT_6, OPT_HOST, OPT_PORT, OPT_CONNECT, OPT_BIND, OPT_UNIX,
a7c04f2b 566 OPT_XMPPHOST, OPT_VERIFY, OPT_NAMEOPT,
7e1b7485
RS		 567 OPT_CERT, OPT_CRL, OPT_CRL_DOWNLOAD, OPT_SESS_OUT, OPT_SESS_IN,
568 OPT_CERTFORM, OPT_CRLFORM, OPT_VERIFY_RET_ERROR, OPT_VERIFY_QUIET,
569 OPT_BRIEF, OPT_PREXIT, OPT_CRLF, OPT_QUIET, OPT_NBIO,
3ee1eac2 570 OPT_SSL_CLIENT_ENGINE, OPT_IGN_EOF, OPT_NO_IGN_EOF,
3a4e9367 571 OPT_DEBUG, OPT_TLSEXTDEBUG, OPT_STATUS, OPT_WDEBUG,
7e1b7485
RS		 572 OPT_MSG, OPT_MSGFILE, OPT_ENGINE, OPT_TRACE, OPT_SECURITY_DEBUG,
573 OPT_SECURITY_DEBUG_VERBOSE, OPT_SHOWCERTS, OPT_NBIO_TEST, OPT_STATE,
72257204 574 OPT_PSK_IDENTITY, OPT_PSK, OPT_PSK_SESS,
bde136c8
F		 575#ifndef OPENSSL_NO_SRP
576 OPT_SRPUSER, OPT_SRPPASS, OPT_SRP_STRENGTH, OPT_SRP_LATEUSER,
577 OPT_SRP_MOREGROUPS,
578#endif
579 OPT_SSL3, OPT_SSL_CONFIG,
582a17d6 580 OPT_TLS1_3, OPT_TLS1_2, OPT_TLS1_1, OPT_TLS1, OPT_DTLS, OPT_DTLS1,
8ccc2377 581 OPT_DTLS1_2, OPT_SCTP, OPT_TIMEOUT, OPT_MTU, OPT_KEYFORM, OPT_PASS,
28e5ea88 582 OPT_CERT_CHAIN, OPT_CAPATH, OPT_NOCAPATH, OPT_CHAINCAPATH, OPT_VERIFYCAPATH,
2b6bcb70 583 OPT_KEY, OPT_RECONNECT, OPT_BUILD_CHAIN, OPT_CAFILE, OPT_NOCAFILE,
7e1b7485 584 OPT_CHAINCAFILE, OPT_VERIFYCAFILE, OPT_NEXTPROTONEG, OPT_ALPN,
28e5ea88 585 OPT_SERVERINFO, OPT_STARTTLS, OPT_SERVERNAME, OPT_NOSERVERNAME, OPT_ASYNC,
8176431d 586 OPT_USE_SRTP, OPT_KEYMATEXPORT, OPT_KEYMATEXPORTLEN, OPT_PROTOHOST,
cf72c757
F		 587 OPT_MAXFRAGLEN, OPT_MAX_SEND_FRAG, OPT_SPLIT_SEND_FRAG, OPT_MAX_PIPELINES,
588 OPT_READ_BUF, OPT_KEYLOG_FILE, OPT_EARLY_DATA, OPT_REQCAFILE,
7e1b7485
RS		 589 OPT_V_ENUM,
590 OPT_X_ENUM,
591 OPT_S_ENUM,
cddd424a 592 OPT_FALLBACKSCSV, OPT_NOCMDS, OPT_PROXY, OPT_DANE_TLSA_DOMAIN,
dd696a55 593#ifndef OPENSSL_NO_CT
43341433 594 OPT_CT, OPT_NOCT, OPT_CTLOG_FILE,
dd696a55 595#endif
3ee1eac2 596 OPT_DANE_TLSA_RRDATA, OPT_DANE_EE_NO_NAME,
9d75dce3 597 OPT_FORCE_PHA,
3ee1eac2 598 OPT_R_ENUM
7e1b7485
RS		 599} OPTION_CHOICE;
600
44c83ebd 601const OPTIONS s_client_options[] = {
7e1b7485
RS		 602 {"help", OPT_HELP, '-', "Display this summary"},
603 {"host", OPT_HOST, 's', "Use -connect instead"},
604 {"port", OPT_PORT, 'p', "Use -connect instead"},
605 {"connect", OPT_CONNECT, 's',
ab69ac00 606 "TCP/IP where to connect (default is :" PORT ")"},
ebc01683 607 {"bind", OPT_BIND, 's', "bind local address for connection"},
552bf8ec
MT		 608 {"proxy", OPT_PROXY, 's',
609 "Connect to via specified proxy to the real server"},
ab69ac00 610#ifdef AF_UNIX
a22f9c84 611 {"unix", OPT_UNIX, 's', "Connect over the specified Unix-domain socket"},
ab69ac00
RL		 612#endif
613 {"4", OPT_4, '-', "Use IPv4 only"},
fe08bd76 614#ifdef AF_INET6
ab69ac00 615 {"6", OPT_6, '-', "Use IPv6 only"},
fe08bd76 616#endif
7e1b7485
RS		 617 {"verify", OPT_VERIFY, 'p', "Turn on peer certificate verification"},
618 {"cert", OPT_CERT, '<', "Certificate file to use, PEM format assumed"},
619 {"certform", OPT_CERTFORM, 'F',
620 "Certificate format (PEM or DER) PEM default"},
a7c04f2b 621 {"nameopt", OPT_NAMEOPT, 's', "Various certificate name options"},
a6972f34
DW		 622 {"key", OPT_KEY, 's', "Private key file to use, if not in -cert file"},
623 {"keyform", OPT_KEYFORM, 'E', "Key format (PEM, DER or engine) PEM default"},
7e1b7485
RS		 624 {"pass", OPT_PASS, 's', "Private key file pass phrase source"},
625 {"CApath", OPT_CAPATH, '/', "PEM format directory of CA's"},
626 {"CAfile", OPT_CAFILE, '<', "PEM format file of CA's"},
2b6bcb70
MC		 627 {"no-CAfile", OPT_NOCAFILE, '-',
628 "Do not load the default certificates file"},
629 {"no-CApath", OPT_NOCAPATH, '-',
630 "Do not load certificates from the default certificates directory"},
d2add501 631 {"requestCAfile", OPT_REQCAFILE, '<',
5969a2dd 632 "PEM format file of CA names to send to the server"},
cddd424a
VD		 633 {"dane_tlsa_domain", OPT_DANE_TLSA_DOMAIN, 's', "DANE TLSA base domain"},
634 {"dane_tlsa_rrdata", OPT_DANE_TLSA_RRDATA, 's',
635 "DANE TLSA rrdata presentation form"},
c4fbed6c
VD		 636 {"dane_ee_no_namechecks", OPT_DANE_EE_NO_NAME, '-',
637 "Disable name checks when matching DANE-EE(3) TLSA records"},
7e1b7485
RS		 638 {"reconnect", OPT_RECONNECT, '-',
639 "Drop and re-make the connection with the same Session-ID"},
bdb59d97
MC		 640 {"showcerts", OPT_SHOWCERTS, '-',
641 "Show all certificates sent by the server"},
7e1b7485
RS		 642 {"debug", OPT_DEBUG, '-', "Extra output"},
643 {"msg", OPT_MSG, '-', "Show protocol messages"},
9a13bb38
RS		 644 {"msgfile", OPT_MSGFILE, '>',
645 "File to send output of -msg or -trace, instead of stdout"},
7e1b7485
RS		 646 {"nbio_test", OPT_NBIO_TEST, '-', "More ssl protocol testing"},
647 {"state", OPT_STATE, '-', "Print the ssl states"},
648 {"crlf", OPT_CRLF, '-', "Convert LF from terminal into CRLF"},
649 {"quiet", OPT_QUIET, '-', "No s_client output"},
650 {"ign_eof", OPT_IGN_EOF, '-', "Ignore input eof (default when -quiet)"},
651 {"no_ign_eof", OPT_NO_IGN_EOF, '-', "Don't ignore input eof"},
7e1b7485 652 {"starttls", OPT_STARTTLS, 's',
cfb4f1ef 653 "Use the appropriate STARTTLS command before starting TLS"},
898ea7b8 654 {"xmpphost", OPT_XMPPHOST, 's',
8176431d 655 "Alias of -name option for \"-starttls xmpp[-server]\""},
3ee1eac2 656 OPT_R_OPTIONS,
7e1b7485
RS		 657 {"sess_out", OPT_SESS_OUT, '>', "File to write SSL session to"},
658 {"sess_in", OPT_SESS_IN, '<', "File to read SSL session from"},
1fb6b0bf 659#ifndef OPENSSL_NO_SRTP
e77bdc73 660 {"use_srtp", OPT_USE_SRTP, 's',
7e1b7485 661 "Offer SRTP key management with a colon-separated profile list"},
1fb6b0bf 662#endif
7e1b7485
RS		 663 {"keymatexport", OPT_KEYMATEXPORT, 's',
664 "Export keying material using label"},
665 {"keymatexportlen", OPT_KEYMATEXPORTLEN, 'p',
666 "Export len bytes of keying material (default 20)"},
cf72c757
F		 667 {"maxfraglen", OPT_MAXFRAGLEN, 'p',
668 "Enable Maximum Fragment Length Negotiation (len values: 512, 1024, 2048 and 4096)"},
7e1b7485 669 {"fallback_scsv", OPT_FALLBACKSCSV, '-', "Send the fallback SCSV"},
8176431d
PY		 670 {"name", OPT_PROTOHOST, 's',
671 "Hostname to use for \"-starttls lmtp\", \"-starttls smtp\" or \"-starttls xmpp[-server]\""},
9a13bb38
RS		 672 {"CRL", OPT_CRL, '<', "CRL file to use"},
673 {"crl_download", OPT_CRL_DOWNLOAD, '-', "Download CRL from distribution points"},
674 {"CRLform", OPT_CRLFORM, 'F', "CRL format (PEM or DER) PEM is default"},
675 {"verify_return_error", OPT_VERIFY_RET_ERROR, '-',
676 "Close connection on verification error"},
677 {"verify_quiet", OPT_VERIFY_QUIET, '-', "Restrict verify output to errors"},
678 {"brief", OPT_BRIEF, '-',
679 "Restrict output to brief summary of connection parameters"},
680 {"prexit", OPT_PREXIT, '-',
681 "Print session information when the program exits"},
682 {"security_debug", OPT_SECURITY_DEBUG, '-',
683 "Enable security debug messages"},
684 {"security_debug_verbose", OPT_SECURITY_DEBUG_VERBOSE, '-',
685 "Output more security debug output"},
686 {"cert_chain", OPT_CERT_CHAIN, '<',
687 "Certificate chain file (in PEM format)"},
688 {"chainCApath", OPT_CHAINCAPATH, '/',
689 "Use dir as certificate store path to build CA certificate chain"},
690 {"verifyCApath", OPT_VERIFYCAPATH, '/',
691 "Use dir as certificate store path to verify CA certificate"},
692 {"build_chain", OPT_BUILD_CHAIN, '-', "Build certificate chain"},
693 {"chainCAfile", OPT_CHAINCAFILE, '<',
694 "CA file for certificate chain (PEM format)"},
695 {"verifyCAfile", OPT_VERIFYCAFILE, '<',
696 "CA file for certificate verification (PEM format)"},
9c3bcfa0
RS		 697 {"nocommands", OPT_NOCMDS, '-', "Do not use interactive command letters"},
698 {"servername", OPT_SERVERNAME, 's',
481afe2a 699 "Set TLS extension servername (SNI) in ClientHello (default)"},
11ba87f2
MC		 700 {"noservername", OPT_NOSERVERNAME, '-',
701 "Do not send the server name (SNI) extension in the ClientHello"},
9c3bcfa0
RS		 702 {"tlsextdebug", OPT_TLSEXTDEBUG, '-',
703 "Hex dump of all TLS extensions received"},
3e41ac35 704#ifndef OPENSSL_NO_OCSP
9c3bcfa0 705 {"status", OPT_STATUS, '-', "Request certificate status from server"},
3e41ac35 706#endif
9c3bcfa0
RS		 707 {"serverinfo", OPT_SERVERINFO, 's',
708 "types Send empty ClientHello extensions (comma-separated numbers)"},
709 {"alpn", OPT_ALPN, 's',
710 "Enable ALPN extension, considering named protocols supported (comma-separated list)"},
7e25dd6d 711 {"async", OPT_ASYNC, '-', "Support asynchronous operation"},
9a13bb38 712 {"ssl_config", OPT_SSL_CONFIG, 's', "Use specified configuration file"},
28e5ea88 713 {"max_send_frag", OPT_MAX_SEND_FRAG, 'p', "Maximum Size of send frames "},
36b2cfb1 714 {"split_send_frag", OPT_SPLIT_SEND_FRAG, 'p',
0df80881 715 "Size used to split data for encrypt pipelines"},
36b2cfb1 716 {"max_pipelines", OPT_MAX_PIPELINES, 'p',
032c6d21 717 "Maximum number of encrypt/decrypt pipelines to be used"},
36b2cfb1 718 {"read_buf", OPT_READ_BUF, 'p',
dad78fb1 719 "Default read buffer size to be used for connections"},
9c3bcfa0
RS		 720 OPT_S_OPTIONS,
721 OPT_V_OPTIONS,
722 OPT_X_OPTIONS,
723#ifndef OPENSSL_NO_SSL3
724 {"ssl3", OPT_SSL3, '-', "Just use SSLv3"},
725#endif
6b01bed2
VD		 726#ifndef OPENSSL_NO_TLS1
727 {"tls1", OPT_TLS1, '-', "Just use TLSv1"},
728#endif
729#ifndef OPENSSL_NO_TLS1_1
730 {"tls1_1", OPT_TLS1_1, '-', "Just use TLSv1.1"},
731#endif
732#ifndef OPENSSL_NO_TLS1_2
733 {"tls1_2", OPT_TLS1_2, '-', "Just use TLSv1.2"},
734#endif
582a17d6
MC		 735#ifndef OPENSSL_NO_TLS1_3
736 {"tls1_3", OPT_TLS1_3, '-', "Just use TLSv1.3"},
737#endif
a5ecdc6a 738#ifndef OPENSSL_NO_DTLS
9a13bb38
RS		 739 {"dtls", OPT_DTLS, '-', "Use any version of DTLS"},
740 {"timeout", OPT_TIMEOUT, '-',
741 "Enable send/receive timeout on DTLS connections"},
9c3bcfa0
RS		 742 {"mtu", OPT_MTU, 'p', "Set the link layer MTU"},
743#endif
6b01bed2
VD		 744#ifndef OPENSSL_NO_DTLS1
745 {"dtls1", OPT_DTLS1, '-', "Just use DTLSv1"},
746#endif
747#ifndef OPENSSL_NO_DTLS1_2
9a13bb38 748 {"dtls1_2", OPT_DTLS1_2, '-', "Just use DTLSv1.2"},
6b01bed2 749#endif
8ccc2377
MC		 750#ifndef OPENSSL_NO_SCTP
751 {"sctp", OPT_SCTP, '-', "Use SCTP"},
752#endif
9c3bcfa0 753#ifndef OPENSSL_NO_SSL_TRACE
9a13bb38 754 {"trace", OPT_TRACE, '-', "Show trace output of protocol messages"},
9c3bcfa0 755#endif
7e1b7485
RS		 756#ifdef WATT32
757 {"wdebug", OPT_WDEBUG, '-', "WATT-32 tcp debugging"},
758#endif
7e1b7485 759 {"nbio", OPT_NBIO, '-', "Use non-blocking IO"},
7e1b7485
RS		 760 {"psk_identity", OPT_PSK_IDENTITY, 's', "PSK identity"},
761 {"psk", OPT_PSK, 's', "PSK in hex (without 0x)"},
e261bdd1 762 {"psk_session", OPT_PSK_SESS, '<', "File to read PSK SSL session from"},
7e1b7485 763#ifndef OPENSSL_NO_SRP
bde136c8 764 {"srpuser", OPT_SRPUSER, 's', "SRP authentication for 'user'"},
7e1b7485
RS		 765 {"srppass", OPT_SRPPASS, 's', "Password for 'user'"},
766 {"srp_lateuser", OPT_SRP_LATEUSER, '-',
767 "SRP username into second ClientHello message"},
768 {"srp_moregroups", OPT_SRP_MOREGROUPS, '-',
769 "Tolerate other than the known g N values."},
740ceb5b 770 {"srp_strength", OPT_SRP_STRENGTH, 'p', "Minimal length in bits for N"},
7e1b7485 771#endif
e481f9b9 772#ifndef OPENSSL_NO_NEXTPROTONEG
7e1b7485
RS		 773 {"nextprotoneg", OPT_NEXTPROTONEG, 's',
774 "Enable NPN extension, considering named protocols supported (comma-separated list)"},
7e1b7485 775#endif
7e1b7485
RS		 776#ifndef OPENSSL_NO_ENGINE
777 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
9a13bb38
RS		 778 {"ssl_client_engine", OPT_SSL_CLIENT_ENGINE, 's',
779 "Specify engine to be used for client certificate operations"},
dd696a55
RP		 780#endif
781#ifndef OPENSSL_NO_CT
43341433 782 {"ct", OPT_CT, '-', "Request and parse SCTs (also enables OCSP stapling)"},
dd696a55 783 {"noct", OPT_NOCT, '-', "Do not request or parse SCTs (default)"},
dd696a55 784 {"ctlogfile", OPT_CTLOG_FILE, '<', "CT log list CONF file"},
7e1b7485 785#endif
4bf73e9f 786 {"keylogfile", OPT_KEYLOG_FILE, '>', "Write TLS secrets to file"},
923ac827 787 {"early_data", OPT_EARLY_DATA, '<', "File to send as early data"},
9d75dce3 788 {"force_pha", OPT_FORCE_PHA, '-', "Force-enable post-handshake-authentication"},
bde136c8 789 {NULL, OPT_EOF, 0x00, NULL}
7e1b7485
RS		 790};
791
792typedef enum PROTOCOL_choice {
793 PROTO_OFF,
0f113f3e
MC		 794 PROTO_SMTP,
795 PROTO_POP3,
796 PROTO_IMAP,
797 PROTO_FTP,
d8c25de5 798 PROTO_TELNET,
552bf8ec 799 PROTO_XMPP,
898ea7b8 800 PROTO_XMPP_SERVER,
cfb4f1ef 801 PROTO_CONNECT,
b2e54eb8 802 PROTO_IRC,
a2d9cfba 803 PROTO_MYSQL,
9576545a 804 PROTO_POSTGRES,
8f85aa6b 805 PROTO_LMTP,
20967afb 806 PROTO_NNTP,
398b0bbd
RS		 807 PROTO_SIEVE,
808 PROTO_LDAP
7e1b7485
RS		 809} PROTOCOL_CHOICE;
810
bde136c8 811static const OPT_PAIR services[] = {
7e1b7485
RS		 812 {"smtp", PROTO_SMTP},
813 {"pop3", PROTO_POP3},
814 {"imap", PROTO_IMAP},
815 {"ftp", PROTO_FTP},
816 {"xmpp", PROTO_XMPP},
898ea7b8 817 {"xmpp-server", PROTO_XMPP_SERVER},
d8c25de5 818 {"telnet", PROTO_TELNET},
cfb4f1ef 819 {"irc", PROTO_IRC},
a2d9cfba 820 {"mysql", PROTO_MYSQL},
b2e54eb8 821 {"postgres", PROTO_POSTGRES},
9576545a 822 {"lmtp", PROTO_LMTP},
8f85aa6b 823 {"nntp", PROTO_NNTP},
20967afb 824 {"sieve", PROTO_SIEVE},
398b0bbd 825 {"ldap", PROTO_LDAP},
bde136c8 826 {NULL, 0}
85c67492
RL		 827};
828
fe08bd76
RS		 829#define IS_INET_FLAG(o) \
830 (o == OPT_4 || o == OPT_6 || o == OPT_HOST || o == OPT_PORT || o == OPT_CONNECT)
831#define IS_UNIX_FLAG(o) (o == OPT_UNIX)
832
4bbd4ba6
MC		 833#define IS_PROT_FLAG(o) \
834 (o == OPT_SSL3 || o == OPT_TLS1 || o == OPT_TLS1_1 || o == OPT_TLS1_2 \
582a17d6 835 || o == OPT_TLS1_3 || o == OPT_DTLS || o == OPT_DTLS1 || o == OPT_DTLS1_2)
4bbd4ba6 836
7315ce80
RS		 837/* Free |*dest| and optionally set it to a copy of |source|. */
838static void freeandcopy(char **dest, const char *source)
839{
840 OPENSSL_free(*dest);
841 *dest = NULL;
842 if (source != NULL)
843 *dest = OPENSSL_strdup(source);
844}
845
be62b22b
MC		 846static int new_session_cb(SSL *S, SSL_SESSION *sess)
847{
848 BIO *stmp = BIO_new_file(sess_out, "w");
849
1f5b44e9
MC		 850 if (stmp == NULL) {
851 BIO_printf(bio_err, "Error writing session file %s\n", sess_out);
852 } else {
be62b22b
MC		 853 PEM_write_bio_SSL_SESSION(stmp, sess);
854 BIO_free(stmp);
be62b22b
MC		 855 }
856
857 /*
858 * We always return a "fail" response so that the session gets freed again
859 * because we haven't used the reference.
860 */
861 return 0;
862}
863
7e1b7485 864int s_client_main(int argc, char **argv)
0f113f3e 865{
7e1b7485 866 BIO *sbio;
0f113f3e 867 EVP_PKEY *key = NULL;
7e1b7485 868 SSL *con = NULL;
0f113f3e 869 SSL_CTX *ctx = NULL;
7e1b7485
RS		 870 STACK_OF(X509) *chain = NULL;
871 X509 *cert = NULL;
0f113f3e 872 X509_VERIFY_PARAM *vpm = NULL;
7e1b7485
RS		 873 SSL_EXCERT *exc = NULL;
874 SSL_CONF_CTX *cctx = NULL;
875 STACK_OF(OPENSSL_STRING) *ssl_args = NULL;
cddd424a
VD		 876 char *dane_tlsa_domain = NULL;
877 STACK_OF(OPENSSL_STRING) *dane_tlsa_rrset = NULL;
c4fbed6c 878 int dane_ee_no_name = 0;
7e1b7485 879 STACK_OF(X509_CRL) *crls = NULL;
13c9bb3e 880 const SSL_METHOD *meth = TLS_client_method();
cc696296
F		 881 const char *CApath = NULL, *CAfile = NULL;
882 char *cbuf = NULL, *sbuf = NULL;
ebc01683 883 char *mbuf = NULL, *proxystr = NULL, *connectstr = NULL, *bindstr = NULL;
cddd424a 884 char *cert_file = NULL, *key_file = NULL, *chain_file = NULL;
ab69ac00 885 char *chCApath = NULL, *chCAfile = NULL, *host = NULL;
7315ce80 886 char *port = OPENSSL_strdup(PORT);
ebc01683 887 char *bindhost = NULL, *bindport = NULL;
7e1b7485 888 char *passarg = NULL, *pass = NULL, *vfyCApath = NULL, *vfyCAfile = NULL;
d2add501 889 char *ReqCAfile = NULL;
be62b22b 890 char *sess_in = NULL, *crl_file = NULL, *p;
8176431d 891 const char *protohost = NULL;
0f113f3e 892 struct timeval timeout, *timeoutp;
7e1b7485 893 fd_set readfds, writefds;
2b6bcb70 894 int noCApath = 0, noCAfile = 0;
7e1b7485
RS		 895 int build_chain = 0, cbuf_len, cbuf_off, cert_format = FORMAT_PEM;
896 int key_format = FORMAT_PEM, crlf = 0, full_log = 1, mbuf_len = 0;
897 int prexit = 0;
40a8e9c2 898 int sdebug = 0;
7e1b7485 899 int reconnect = 0, verify = SSL_VERIFY_NONE, vpmtouched = 0;
480405e4 900 int ret = 1, in_init = 1, i, nbio_test = 0, s = -1, k, width, state = 0;
ab69ac00 901 int sbuf_len, sbuf_off, cmdletters = 1;
8ccc2377 902 int socket_family = AF_UNSPEC, socket_type = SOCK_STREAM, protocol = 0;
7e1b7485
RS		 903 int starttls_proto = PROTO_OFF, crl_format = FORMAT_PEM, crl_download = 0;
904 int write_tty, read_tty, write_ssl, read_ssl, tty_on, ssl_pending;
d485640b 905#if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
a3ef2c16 906 int at_eof = 0;
d485640b 907#endif
dad78fb1 908 int read_buf_len = 0;
7e1b7485 909 int fallback_scsv = 0;
7e1b7485 910 OPTION_CHOICE o;
40a8e9c2
MC		 911#ifndef OPENSSL_NO_DTLS
912 int enable_timeouts = 0;
913 long socket_mtu = 0;
914#endif
0b13e9f0 915#ifndef OPENSSL_NO_ENGINE
0f113f3e 916 ENGINE *ssl_client_engine = NULL;
7e1b7485 917#endif
333b070e 918 ENGINE *e = NULL;
1fbab1dc 919#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
0f113f3e 920 struct timeval tv;
06f4536a 921#endif
44f19af7 922 const char *servername = NULL;
11ba87f2 923 int noservername = 0;
7e1b7485 924 const char *alpn_in = NULL;
0f113f3e 925 tlsextctx tlsextcbp = { NULL, 0 };
287d0b94 926 const char *ssl_config = NULL;
e481f9b9 927#define MAX_SI_TYPES 100
7e1b7485
RS		 928 unsigned short serverinfo_types[MAX_SI_TYPES];
929 int serverinfo_count = 0, start = 0, len;
e481f9b9 930#ifndef OPENSSL_NO_NEXTPROTONEG
0f113f3e 931 const char *next_proto_neg_in = NULL;
ed551cdd 932#endif
edc032b5 933#ifndef OPENSSL_NO_SRP
0f113f3e
MC		 934 char *srppass = NULL;
935 int srp_lateuser = 0;
936 SRP_ARG srp_arg = { NULL, NULL, 0, 0, 0, 1024 };
937#endif
1fb6b0bf 938 char *srtp_profiles = NULL;
dd696a55
RP		 939#ifndef OPENSSL_NO_CT
940 char *ctlog_file = NULL;
43341433 941 int ct_validation = 0;
dd696a55 942#endif
4bbd4ba6 943 int min_version = 0, max_version = 0, prot_opt = 0, no_prot_opt = 0;
fba13663 944 int async = 0;
28e5ea88 945 unsigned int max_send_fragment = 0;
36b2cfb1 946 unsigned int split_send_fragment = 0, max_pipelines = 0;
fe08bd76
RS		 947 enum { use_inet, use_unix, use_unknown } connect_type = use_unknown;
948 int count4or6 = 0;
cf72c757 949 uint8_t maxfraglen = 0;
54463e4f 950 int c_nbio = 0, c_msg = 0, c_ign_eof = 0, c_brief = 0;
057c676a
RL		 951 int c_tlsextdebug = 0;
952#ifndef OPENSSL_NO_OCSP
953 int c_status_req = 0;
954#endif
54463e4f 955 BIO *bio_c_msg = NULL;
923ac827 956 const char *keylog_file = NULL, *early_data_file = NULL;
9ff2cebf 957#ifndef OPENSSL_NO_DTLS
8ccc2377 958 int isdtls = 0;
9ff2cebf 959#endif
e261bdd1 960 char *psksessf = NULL;
9d75dce3 961 int force_pha = 0;
0f113f3e 962
efc943be
EK		 963 FD_ZERO(&readfds);
964 FD_ZERO(&writefds);
965/* Known false-positive of MemorySanitizer. */
966#if defined(__has_feature)
967# if __has_feature(memory_sanitizer)
968 __msan_unpoison(&readfds, sizeof(readfds));
969 __msan_unpoison(&writefds, sizeof(writefds));
970# endif
971#endif
972
7e1b7485 973 prog = opt_progname(argv[0]);
0f113f3e 974 c_quiet = 0;
0f113f3e 975 c_debug = 0;
0f113f3e 976 c_showcerts = 0;
7e1b7485 977 c_nbio = 0;
7e1b7485 978 vpm = X509_VERIFY_PARAM_new();
0f113f3e 979 cctx = SSL_CONF_CTX_new();
0f113f3e 980
68dc6824 981 if (vpm == NULL || cctx == NULL) {
7e1b7485 982 BIO_printf(bio_err, "%s: out of memory\n", prog);
0f113f3e
MC		 983 goto end;
984 }
985
acc00492
F		 986 cbuf = app_malloc(BUFSIZZ, "cbuf");
987 sbuf = app_malloc(BUFSIZZ, "sbuf");
988 mbuf = app_malloc(BUFSIZZ, "mbuf");
989
7e1b7485 990 SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CLIENT | SSL_CONF_FLAG_CMDLINE);
0f113f3e 991
7e1b7485
RS		 992 prog = opt_init(argc, argv, s_client_options);
993 while ((o = opt_next()) != OPT_EOF) {
fe08bd76
RS		 994 /* Check for intermixing flags. */
995 if (connect_type == use_unix && IS_INET_FLAG(o)) {
996 BIO_printf(bio_err,
d6073e27
F		 997 "%s: Intermixed protocol flags (unix and internet domains)\n",
998 prog);
fe08bd76
RS		 999 goto end;
1000 }
1001 if (connect_type == use_inet && IS_UNIX_FLAG(o)) {
1002 BIO_printf(bio_err,
d6073e27
F		 1003 "%s: Intermixed protocol flags (internet and unix domains)\n",
1004 prog);
fe08bd76
RS		 1005 goto end;
1006 }
4bbd4ba6
MC		 1007
1008 if (IS_PROT_FLAG(o) && ++prot_opt > 1) {
1009 BIO_printf(bio_err, "Cannot supply multiple protocol flags\n");
1010 goto end;
1011 }
1012 if (IS_NO_PROT_FLAG(o))
1013 no_prot_opt++;
1014 if (prot_opt == 1 && no_prot_opt) {
d6073e27
F		 1015 BIO_printf(bio_err,
1016 "Cannot supply both a protocol flag and '-no_<prot>'\n");
4bbd4ba6
MC		 1017 goto end;
1018 }
1019
7e1b7485 1020 switch (o) {
7e1b7485
RS		 1021 case OPT_EOF:
1022 case OPT_ERR:
1023 opthelp:
1024 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
1025 goto end;
1026 case OPT_HELP:
1027 opt_help(s_client_options);
1028 ret = 0;
1029 goto end;
ab69ac00 1030 case OPT_4:
fe08bd76 1031 connect_type = use_inet;
ab69ac00 1032 socket_family = AF_INET;
fe08bd76 1033 count4or6++;
ab69ac00 1034 break;
ab69ac00 1035#ifdef AF_INET6
fe08bd76
RS		 1036 case OPT_6:
1037 connect_type = use_inet;
1038 socket_family = AF_INET6;
1039 count4or6++;
ab69ac00 1040 break;
ab69ac00 1041#endif
fe08bd76
RS		 1042 case OPT_HOST:
1043 connect_type = use_inet;
7315ce80 1044 freeandcopy(&host, opt_arg());
7e1b7485
RS		 1045 break;
1046 case OPT_PORT:
fe08bd76 1047 connect_type = use_inet;
7315ce80 1048 freeandcopy(&port, opt_arg());
7e1b7485
RS		 1049 break;
1050 case OPT_CONNECT:
fe08bd76 1051 connect_type = use_inet;
7315ce80 1052 freeandcopy(&connectstr, opt_arg());
552bf8ec 1053 break;
ebc01683
JH		 1054 case OPT_BIND:
1055 freeandcopy(&bindstr, opt_arg());
1056 break;
552bf8ec
MT		 1057 case OPT_PROXY:
1058 proxystr = opt_arg();
1059 starttls_proto = PROTO_CONNECT;
7e1b7485 1060 break;
ab69ac00 1061#ifdef AF_UNIX
7e1b7485 1062 case OPT_UNIX:
fe08bd76 1063 connect_type = use_unix;
ab69ac00 1064 socket_family = AF_UNIX;
7315ce80 1065 freeandcopy(&host, opt_arg());
7e1b7485 1066 break;
ab69ac00 1067#endif
d8c25de5 1068 case OPT_XMPPHOST:
8176431d
PY		 1069 /* fall through, since this is an alias */
1070 case OPT_PROTOHOST:
1071 protohost = opt_arg();
d8c25de5 1072 break;
7e1b7485 1073 case OPT_VERIFY:
0f113f3e 1074 verify = SSL_VERIFY_PEER;
acc00492 1075 verify_args.depth = atoi(opt_arg());
0f113f3e 1076 if (!c_quiet)
acc00492 1077 BIO_printf(bio_err, "verify depth is %d\n", verify_args.depth);
7e1b7485
RS		 1078 break;
1079 case OPT_CERT:
1080 cert_file = opt_arg();
1081 break;
a7c04f2b
DB		 1082 case OPT_NAMEOPT:
1083 if (!set_nameopt(opt_arg()))
1084 goto end;
1085 break;
7e1b7485
RS		 1086 case OPT_CRL:
1087 crl_file = opt_arg();
1088 break;
1089 case OPT_CRL_DOWNLOAD:
0f113f3e 1090 crl_download = 1;
7e1b7485
RS		 1091 break;
1092 case OPT_SESS_OUT:
1093 sess_out = opt_arg();
1094 break;
1095 case OPT_SESS_IN:
1096 sess_in = opt_arg();
1097 break;
1098 case OPT_CERTFORM:
1099 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &cert_format))
1100 goto opthelp;
1101 break;
1102 case OPT_CRLFORM:
1103 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &crl_format))
1104 goto opthelp;
1105 break;
1106 case OPT_VERIFY_RET_ERROR:
acc00492 1107 verify_args.return_error = 1;
7e1b7485
RS		 1108 break;
1109 case OPT_VERIFY_QUIET:
acc00492 1110 verify_args.quiet = 1;
7e1b7485
RS		 1111 break;
1112 case OPT_BRIEF:
acc00492 1113 c_brief = verify_args.quiet = c_quiet = 1;
7e1b7485
RS		 1114 break;
1115 case OPT_S_CASES:
1116 if (ssl_args == NULL)
1117 ssl_args = sk_OPENSSL_STRING_new_null();
1118 if (ssl_args == NULL
1119 || !sk_OPENSSL_STRING_push(ssl_args, opt_flag())
1120 || !sk_OPENSSL_STRING_push(ssl_args, opt_arg())) {
1121 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog);
1122 goto end;
1123 }
1124 break;
1125 case OPT_V_CASES:
1126 if (!opt_verify(o, vpm))
1127 goto end;
1128 vpmtouched++;
1129 break;
1130 case OPT_X_CASES:
1131 if (!args_excert(o, &exc))
1132 goto end;
1133 break;
1134 case OPT_PREXIT:
0f113f3e 1135 prexit = 1;
7e1b7485
RS		 1136 break;
1137 case OPT_CRLF:
0f113f3e 1138 crlf = 1;
7e1b7485
RS		 1139 break;
1140 case OPT_QUIET:
1141 c_quiet = c_ign_eof = 1;
1142 break;
1143 case OPT_NBIO:
1144 c_nbio = 1;
1145 break;
6ba8a5b7
RS		 1146 case OPT_NOCMDS:
1147 cmdletters = 0;
1148 break;
7e1b7485 1149 case OPT_ENGINE:
333b070e 1150 e = setup_engine(opt_arg(), 1);
7e1b7485
RS		 1151 break;
1152 case OPT_SSL_CLIENT_ENGINE:
333b070e
RS		 1153#ifndef OPENSSL_NO_ENGINE
1154 ssl_client_engine = ENGINE_by_id(opt_arg());
1155 if (ssl_client_engine == NULL) {
1156 BIO_printf(bio_err, "Error getting client auth engine\n");
1157 goto opthelp;
1158 }
333b070e 1159#endif
7e1b7485 1160 break;
3ee1eac2
RS		 1161 case OPT_R_CASES:
1162 if (!opt_rand(o))
1163 goto end;
7e1b7485
RS		 1164 break;
1165 case OPT_IGN_EOF:
0f113f3e 1166 c_ign_eof = 1;
7e1b7485
RS		 1167 break;
1168 case OPT_NO_IGN_EOF:
0f113f3e 1169 c_ign_eof = 0;
7e1b7485 1170 break;
7e1b7485 1171 case OPT_DEBUG:
0f113f3e 1172 c_debug = 1;
7e1b7485 1173 break;
7e1b7485 1174 case OPT_TLSEXTDEBUG:
0f113f3e 1175 c_tlsextdebug = 1;
7e1b7485
RS		 1176 break;
1177 case OPT_STATUS:
057c676a 1178#ifndef OPENSSL_NO_OCSP
0f113f3e 1179 c_status_req = 1;
057c676a 1180#endif
7e1b7485 1181 break;
7e1b7485 1182 case OPT_WDEBUG:
9c3bcfa0 1183#ifdef WATT32
0f113f3e
MC		 1184 dbug_init();
1185#endif
9c3bcfa0 1186 break;
7e1b7485 1187 case OPT_MSG:
0f113f3e 1188 c_msg = 1;
7e1b7485
RS		 1189 break;
1190 case OPT_MSGFILE:
1191 bio_c_msg = BIO_new_file(opt_arg(), "w");
1192 break;
7e1b7485 1193 case OPT_TRACE:
9c3bcfa0 1194#ifndef OPENSSL_NO_SSL_TRACE
0f113f3e
MC		 1195 c_msg = 2;
1196#endif
9c3bcfa0 1197 break;
7e1b7485 1198 case OPT_SECURITY_DEBUG:
0f113f3e 1199 sdebug = 1;
7e1b7485
RS		 1200 break;
1201 case OPT_SECURITY_DEBUG_VERBOSE:
0f113f3e 1202 sdebug = 2;
7e1b7485
RS		 1203 break;
1204 case OPT_SHOWCERTS:
0f113f3e 1205 c_showcerts = 1;
7e1b7485
RS		 1206 break;
1207 case OPT_NBIO_TEST:
0f113f3e 1208 nbio_test = 1;
7e1b7485
RS		 1209 break;
1210 case OPT_STATE:
0f113f3e 1211 state = 1;
7e1b7485 1212 break;
7e1b7485
RS		 1213 case OPT_PSK_IDENTITY:
1214 psk_identity = opt_arg();
1215 break;
1216 case OPT_PSK:
1217 for (p = psk_key = opt_arg(); *p; p++) {
18295f0c 1218 if (isxdigit(_UC(*p)))
0f113f3e 1219 continue;
7e1b7485
RS		 1220 BIO_printf(bio_err, "Not a hex number '%s'\n", psk_key);
1221 goto end;
0f113f3e 1222 }
13cbe5e7 1223 break;
e261bdd1
MC		 1224 case OPT_PSK_SESS:
1225 psksessf = opt_arg();
1226 break;
edc032b5 1227#ifndef OPENSSL_NO_SRP
7e1b7485
RS		 1228 case OPT_SRPUSER:
1229 srp_arg.srplogin = opt_arg();
0d5301af
KR		 1230 if (min_version < TLS1_VERSION)
1231 min_version = TLS1_VERSION;
7e1b7485
RS		 1232 break;
1233 case OPT_SRPPASS:
1234 srppass = opt_arg();
0d5301af
KR		 1235 if (min_version < TLS1_VERSION)
1236 min_version = TLS1_VERSION;
7e1b7485
RS		 1237 break;
1238 case OPT_SRP_STRENGTH:
1239 srp_arg.strength = atoi(opt_arg());
0f113f3e
MC		 1240 BIO_printf(bio_err, "SRP minimal length for N is %d\n",
1241 srp_arg.strength);
0d5301af
KR		 1242 if (min_version < TLS1_VERSION)
1243 min_version = TLS1_VERSION;
7e1b7485
RS		 1244 break;
1245 case OPT_SRP_LATEUSER:
0f113f3e 1246 srp_lateuser = 1;
0d5301af
KR		 1247 if (min_version < TLS1_VERSION)
1248 min_version = TLS1_VERSION;
7e1b7485
RS		 1249 break;
1250 case OPT_SRP_MOREGROUPS:
0f113f3e 1251 srp_arg.amp = 1;
0d5301af
KR		 1252 if (min_version < TLS1_VERSION)
1253 min_version = TLS1_VERSION;
7e1b7485 1254 break;
edc032b5 1255#endif
287d0b94
DSH		 1256 case OPT_SSL_CONFIG:
1257 ssl_config = opt_arg();
1258 break;
7e1b7485 1259 case OPT_SSL3:
0d5301af
KR		 1260 min_version = SSL3_VERSION;
1261 max_version = SSL3_VERSION;
9c3bcfa0 1262 break;
582a17d6
MC		 1263 case OPT_TLS1_3:
1264 min_version = TLS1_3_VERSION;
1265 max_version = TLS1_3_VERSION;
1266 break;
7e1b7485 1267 case OPT_TLS1_2:
0d5301af
KR		 1268 min_version = TLS1_2_VERSION;
1269 max_version = TLS1_2_VERSION;
7e1b7485
RS		 1270 break;
1271 case OPT_TLS1_1:
0d5301af
KR		 1272 min_version = TLS1_1_VERSION;
1273 max_version = TLS1_1_VERSION;
7e1b7485
RS		 1274 break;
1275 case OPT_TLS1:
0d5301af
KR		 1276 min_version = TLS1_VERSION;
1277 max_version = TLS1_VERSION;
7e1b7485 1278 break;
7e1b7485 1279 case OPT_DTLS:
6b01bed2 1280#ifndef OPENSSL_NO_DTLS
0f113f3e
MC		 1281 meth = DTLS_client_method();
1282 socket_type = SOCK_DGRAM;
8ccc2377 1283 isdtls = 1;
6b01bed2 1284#endif
7e1b7485
RS		 1285 break;
1286 case OPT_DTLS1:
6b01bed2 1287#ifndef OPENSSL_NO_DTLS1
0d5301af
KR		 1288 meth = DTLS_client_method();
1289 min_version = DTLS1_VERSION;
1290 max_version = DTLS1_VERSION;
0f113f3e 1291 socket_type = SOCK_DGRAM;
8ccc2377 1292 isdtls = 1;
6b01bed2 1293#endif
7e1b7485
RS		 1294 break;
1295 case OPT_DTLS1_2:
6b01bed2 1296#ifndef OPENSSL_NO_DTLS1_2
0d5301af
KR		 1297 meth = DTLS_client_method();
1298 min_version = DTLS1_2_VERSION;
1299 max_version = DTLS1_2_VERSION;
0f113f3e 1300 socket_type = SOCK_DGRAM;
8ccc2377
MC		 1301 isdtls = 1;
1302#endif
1303 break;
1304 case OPT_SCTP:
1305#ifndef OPENSSL_NO_SCTP
1306 protocol = IPPROTO_SCTP;
6b01bed2 1307#endif
7e1b7485
RS		 1308 break;
1309 case OPT_TIMEOUT:
6b01bed2 1310#ifndef OPENSSL_NO_DTLS
0f113f3e 1311 enable_timeouts = 1;
6b01bed2 1312#endif
7e1b7485
RS		 1313 break;
1314 case OPT_MTU:
6b01bed2 1315#ifndef OPENSSL_NO_DTLS
7e1b7485 1316 socket_mtu = atol(opt_arg());
0f113f3e 1317#endif
6b01bed2 1318 break;
7e1b7485 1319 case OPT_FALLBACKSCSV:
0f113f3e 1320 fallback_scsv = 1;
7e1b7485
RS		 1321 break;
1322 case OPT_KEYFORM:
a6972f34 1323 if (!opt_format(opt_arg(), OPT_FMT_PDE, &key_format))
7e1b7485
RS		 1324 goto opthelp;
1325 break;
1326 case OPT_PASS:
1327 passarg = opt_arg();
1328 break;
1329 case OPT_CERT_CHAIN:
1330 chain_file = opt_arg();
1331 break;
1332 case OPT_KEY:
1333 key_file = opt_arg();
1334 break;
1335 case OPT_RECONNECT:
0f113f3e 1336 reconnect = 5;
7e1b7485
RS		 1337 break;
1338 case OPT_CAPATH:
1339 CApath = opt_arg();
1340 break;
2b6bcb70
MC		 1341 case OPT_NOCAPATH:
1342 noCApath = 1;
1343 break;
7e1b7485
RS		 1344 case OPT_CHAINCAPATH:
1345 chCApath = opt_arg();
1346 break;
1347 case OPT_VERIFYCAPATH:
1348 vfyCApath = opt_arg();
1349 break;
1350 case OPT_BUILD_CHAIN:
0f113f3e 1351 build_chain = 1;
7e1b7485 1352 break;
d2add501
DSH		 1353 case OPT_REQCAFILE:
1354 ReqCAfile = opt_arg();
1355 break;
7e1b7485
RS		 1356 case OPT_CAFILE:
1357 CAfile = opt_arg();
1358 break;
2b6bcb70
MC		 1359 case OPT_NOCAFILE:
1360 noCAfile = 1;
1361 break;
dd696a55
RP		 1362#ifndef OPENSSL_NO_CT
1363 case OPT_NOCT:
43341433 1364 ct_validation = 0;
dd696a55 1365 break;
43341433
VD		 1366 case OPT_CT:
1367 ct_validation = 1;
dd696a55
RP		 1368 break;
1369 case OPT_CTLOG_FILE:
1370 ctlog_file = opt_arg();
1371 break;
1372#endif
7e1b7485
RS		 1373 case OPT_CHAINCAFILE:
1374 chCAfile = opt_arg();
1375 break;
1376 case OPT_VERIFYCAFILE:
1377 vfyCAfile = opt_arg();
1378 break;
cddd424a
VD		 1379 case OPT_DANE_TLSA_DOMAIN:
1380 dane_tlsa_domain = opt_arg();
1381 break;
1382 case OPT_DANE_TLSA_RRDATA:
1383 if (dane_tlsa_rrset == NULL)
1384 dane_tlsa_rrset = sk_OPENSSL_STRING_new_null();
1385 if (dane_tlsa_rrset == NULL ||
1386 !sk_OPENSSL_STRING_push(dane_tlsa_rrset, opt_arg())) {
1387 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog);
1388 goto end;
1389 }
1390 break;
c4fbed6c
VD		 1391 case OPT_DANE_EE_NO_NAME:
1392 dane_ee_no_name = 1;
1393 break;
7e1b7485 1394 case OPT_NEXTPROTONEG:
1595ca02 1395#ifndef OPENSSL_NO_NEXTPROTONEG
7e1b7485 1396 next_proto_neg_in = opt_arg();
1595ca02 1397#endif
7e1b7485
RS		 1398 break;
1399 case OPT_ALPN:
1400 alpn_in = opt_arg();
1401 break;
1402 case OPT_SERVERINFO:
1403 p = opt_arg();
1404 len = strlen(p);
1405 for (start = 0, i = 0; i <= len; ++i) {
1406 if (i == len || p[i] == ',') {
1407 serverinfo_types[serverinfo_count] = atoi(p + start);
1408 if (++serverinfo_count == MAX_SI_TYPES)
1409 break;
0f113f3e
MC		 1410 start = i + 1;
1411 }
0f113f3e 1412 }
7e1b7485 1413 break;
7e1b7485
RS		 1414 case OPT_STARTTLS:
1415 if (!opt_pair(opt_arg(), services, &starttls_proto))
1416 goto end;
46da5f9c 1417 break;
7e1b7485
RS		 1418 case OPT_SERVERNAME:
1419 servername = opt_arg();
7e1b7485 1420 break;
11ba87f2
MC		 1421 case OPT_NOSERVERNAME:
1422 noservername = 1;
1423 break;
7e1b7485
RS		 1424 case OPT_USE_SRTP:
1425 srtp_profiles = opt_arg();
1426 break;
1427 case OPT_KEYMATEXPORT:
1428 keymatexportlabel = opt_arg();
1429 break;
1430 case OPT_KEYMATEXPORTLEN:
1431 keymatexportlen = atoi(opt_arg());
0f113f3e 1432 break;
7e25dd6d
MC		 1433 case OPT_ASYNC:
1434 async = 1;
1435 break;
cf72c757
F		 1436 case OPT_MAXFRAGLEN:
1437 len = atoi(opt_arg());
1438 switch (len) {
1439 case 512:
1440 maxfraglen = TLSEXT_max_fragment_length_512;
1441 break;
1442 case 1024:
1443 maxfraglen = TLSEXT_max_fragment_length_1024;
1444 break;
1445 case 2048:
1446 maxfraglen = TLSEXT_max_fragment_length_2048;
1447 break;
1448 case 4096:
1449 maxfraglen = TLSEXT_max_fragment_length_4096;
1450 break;
1451 default:
1452 BIO_printf(bio_err,
1453 "%s: Max Fragment Len %u is out of permitted values",
1454 prog, len);
1455 goto opthelp;
1456 }
1457 break;
28e5ea88
F		 1458 case OPT_MAX_SEND_FRAG:
1459 max_send_fragment = atoi(opt_arg());
28e5ea88 1460 break;
032c6d21
MC		 1461 case OPT_SPLIT_SEND_FRAG:
1462 split_send_fragment = atoi(opt_arg());
032c6d21
MC		 1463 break;
1464 case OPT_MAX_PIPELINES:
1465 max_pipelines = atoi(opt_arg());
1466 break;
dad78fb1
MC		 1467 case OPT_READ_BUF:
1468 read_buf_len = atoi(opt_arg());
1469 break;
4bf73e9f
PW		 1470 case OPT_KEYLOG_FILE:
1471 keylog_file = opt_arg();
1472 break;
923ac827
MC		 1473 case OPT_EARLY_DATA:
1474 early_data_file = opt_arg();
1475 break;
9d75dce3
TS		 1476 case OPT_FORCE_PHA:
1477 force_pha = 1;
1478 break;
0f113f3e 1479 }
0f113f3e 1480 }
fe08bd76
RS		 1481 if (count4or6 >= 2) {
1482 BIO_printf(bio_err, "%s: Can't use both -4 and -6\n", prog);
1483 goto opthelp;
1484 }
11ba87f2
MC		 1485 if (noservername) {
1486 if (servername != NULL) {
1487 BIO_printf(bio_err,
1488 "%s: Can't use -servername and -noservername together\n",
1489 prog);
1490 goto opthelp;
1491 }
1492 if (dane_tlsa_domain != NULL) {
1493 BIO_printf(bio_err,
1494 "%s: Can't use -dane_tlsa_domain and -noservername together\n",
1495 prog);
1496 goto opthelp;
1497 }
1498 }
7e1b7485 1499 argc = opt_num_rest();
729ef856
CB		 1500 if (argc == 1) {
1501 /* If there's a positional argument, it's the equivalent of
1502 * OPT_CONNECT.
1503 * Don't allow -connect and a separate argument.
1504 */
1505 if (connectstr != NULL) {
1506 BIO_printf(bio_err,
1507 "%s: must not provide both -connect option and target parameter\n",
1508 prog);
1509 goto opthelp;
1510 }
1511 connect_type = use_inet;
222417eb 1512 freeandcopy(&connectstr, *opt_rest());
729ef856 1513 } else if (argc != 0) {
03358517 1514 goto opthelp;
729ef856 1515 }
0f113f3e 1516
837f87c2
PY		 1517#ifndef OPENSSL_NO_NEXTPROTONEG
1518 if (min_version == TLS1_3_VERSION && next_proto_neg_in != NULL) {
1519 BIO_printf(bio_err, "Cannot supply -nextprotoneg with TLSv1.3\n");
1520 goto opthelp;
1521 }
1522#endif
2234212c 1523 if (proxystr != NULL) {
ab69ac00
RL		 1524 int res;
1525 char *tmp_host = host, *tmp_port = port;
552bf8ec 1526 if (connectstr == NULL) {
729ef856 1527 BIO_printf(bio_err, "%s: -proxy requires use of -connect or target parameter\n", prog);
552bf8ec
MT		 1528 goto opthelp;
1529 }
ab69ac00
RL		 1530 res = BIO_parse_hostserv(proxystr, &host, &port, BIO_PARSE_PRIO_HOST);
1531 if (tmp_host != host)
1532 OPENSSL_free(tmp_host);
1533 if (tmp_port != port)
1534 OPENSSL_free(tmp_port);
1535 if (!res) {
d6073e27
F		 1536 BIO_printf(bio_err,
1537 "%s: -proxy argument malformed or ambiguous\n", prog);
ab69ac00
RL		 1538 goto end;
1539 }
1540 } else {
1541 int res = 1;
1542 char *tmp_host = host, *tmp_port = port;
1543 if (connectstr != NULL)
1544 res = BIO_parse_hostserv(connectstr, &host, &port,
1545 BIO_PARSE_PRIO_HOST);
1546 if (tmp_host != host)
1547 OPENSSL_free(tmp_host);
1548 if (tmp_port != port)
1549 OPENSSL_free(tmp_port);
1550 if (!res) {
1551 BIO_printf(bio_err,
729ef856 1552 "%s: -connect argument or target parameter malformed or ambiguous\n",
ab69ac00 1553 prog);
552bf8ec 1554 goto end;
ab69ac00 1555 }
552bf8ec 1556 }
552bf8ec 1557
ebc01683
JH		 1558 if (bindstr != NULL) {
1559 int res;
1560 res = BIO_parse_hostserv(bindstr, &bindhost, &bindport,
1561 BIO_PARSE_PRIO_HOST);
1562 if (!res) {
1563 BIO_printf(bio_err,
1564 "%s: -bind argument parameter malformed or ambiguous\n",
1565 prog);
1566 goto end;
1567 }
1568 }
1569
326eaa94 1570#ifdef AF_UNIX
ab69ac00 1571 if (socket_family == AF_UNIX && socket_type != SOCK_STREAM) {
0f113f3e
MC		 1572 BIO_printf(bio_err,
1573 "Can't use unix sockets and datagrams together\n");
1574 goto end;
1575 }
326eaa94 1576#endif
f3b7bdad 1577
8ccc2377
MC		 1578#ifndef OPENSSL_NO_SCTP
1579 if (protocol == IPPROTO_SCTP) {
1580 if (socket_type != SOCK_DGRAM) {
1581 BIO_printf(bio_err, "Can't use -sctp without DTLS\n");
1582 goto end;
1583 }
1584 /* SCTP is unusual. It uses DTLS over a SOCK_STREAM protocol */
1585 socket_type = SOCK_STREAM;
1586 }
1587#endif
032c6d21 1588
e481f9b9 1589#if !defined(OPENSSL_NO_NEXTPROTONEG)
0f113f3e
MC		 1590 next_proto.status = -1;
1591 if (next_proto_neg_in) {
1592 next_proto.data =
1593 next_protos_parse(&next_proto.len, next_proto_neg_in);
1594 if (next_proto.data == NULL) {
1595 BIO_printf(bio_err, "Error parsing -nextprotoneg argument\n");
1596 goto end;
1597 }
1598 } else
1599 next_proto.data = NULL;
ee2ffc27
BL		 1600#endif
1601
7e1b7485 1602 if (!app_passwd(passarg, NULL, &pass, NULL)) {
0f113f3e
MC		 1603 BIO_printf(bio_err, "Error getting password\n");
1604 goto end;
1605 }
1606
1607 if (key_file == NULL)
1608 key_file = cert_file;
1609
2234212c 1610 if (key_file != NULL) {
7e1b7485 1611 key = load_key(key_file, key_format, 0, pass, e,
0f113f3e 1612 "client certificate private key file");
7e1b7485 1613 if (key == NULL) {
0f113f3e
MC		 1614 ERR_print_errors(bio_err);
1615 goto end;
1616 }
0f113f3e
MC		 1617 }
1618
2234212c 1619 if (cert_file != NULL) {
a773b52a 1620 cert = load_cert(cert_file, cert_format, "client certificate file");
7e1b7485 1621 if (cert == NULL) {
0f113f3e
MC		 1622 ERR_print_errors(bio_err);
1623 goto end;
1624 }
1625 }
1626
2234212c 1627 if (chain_file != NULL) {
a773b52a 1628 if (!load_certs(chain_file, &chain, FORMAT_PEM, NULL,
0996dc54 1629 "client certificate chain"))
0f113f3e
MC		 1630 goto end;
1631 }
1632
2234212c 1633 if (crl_file != NULL) {
0f113f3e
MC		 1634 X509_CRL *crl;
1635 crl = load_crl(crl_file, crl_format);
7e1b7485 1636 if (crl == NULL) {
0f113f3e
MC		 1637 BIO_puts(bio_err, "Error loading CRL\n");
1638 ERR_print_errors(bio_err);
1639 goto end;
1640 }
1641 crls = sk_X509_CRL_new_null();
7e1b7485 1642 if (crls == NULL || !sk_X509_CRL_push(crls, crl)) {
0f113f3e
MC		 1643 BIO_puts(bio_err, "Error adding CRL\n");
1644 ERR_print_errors(bio_err);
1645 X509_CRL_free(crl);
1646 goto end;
1647 }
1648 }
1649
7e1b7485 1650 if (!load_excert(&exc))
0f113f3e
MC		 1651 goto end;
1652
0f113f3e
MC		 1653 if (bio_c_out == NULL) {
1654 if (c_quiet && !c_debug) {
1655 bio_c_out = BIO_new(BIO_s_null());
2234212c 1656 if (c_msg && bio_c_msg == NULL)
a60994df 1657 bio_c_msg = dup_bio_out(FORMAT_TEXT);
7e1b7485 1658 } else if (bio_c_out == NULL)
a60994df 1659 bio_c_out = dup_bio_out(FORMAT_TEXT);
0f113f3e 1660 }
edc032b5 1661#ifndef OPENSSL_NO_SRP
7e1b7485 1662 if (!app_passwd(srppass, NULL, &srp_arg.srppassin, NULL)) {
0f113f3e
MC		 1663 BIO_printf(bio_err, "Error getting password\n");
1664 goto end;
1665 }
1666#endif
1667
1668 ctx = SSL_CTX_new(meth);
1669 if (ctx == NULL) {
1670 ERR_print_errors(bio_err);
1671 goto end;
1672 }
1673
1674 if (sdebug)
ecf3a1fb 1675 ssl_ctx_security_debug(ctx, sdebug);
0f113f3e 1676
8f8be103
RL		 1677 if (!config_ctx(cctx, ssl_args, ctx))
1678 goto end;
1679
2234212c 1680 if (ssl_config != NULL) {
287d0b94
DSH		 1681 if (SSL_CTX_config(ctx, ssl_config) == 0) {
1682 BIO_printf(bio_err, "Error using configuration \"%s\"\n",
1683 ssl_config);
d6073e27
F		 1684 ERR_print_errors(bio_err);
1685 goto end;
287d0b94
DSH		 1686 }
1687 }
1688
8f8be103
RL		 1689 if (min_version != 0
1690 && SSL_CTX_set_min_proto_version(ctx, min_version) == 0)
0d5301af 1691 goto end;
8f8be103
RL		 1692 if (max_version != 0
1693 && SSL_CTX_set_max_proto_version(ctx, max_version) == 0)
0d5301af
KR		 1694 goto end;
1695
7e1b7485 1696 if (vpmtouched && !SSL_CTX_set1_param(ctx, vpm)) {
ac59d705
MC		 1697 BIO_printf(bio_err, "Error setting verify params\n");
1698 ERR_print_errors(bio_err);
1699 goto end;
1700 }
0f113f3e 1701
5e6f9775 1702 if (async) {
7e25dd6d 1703 SSL_CTX_set_mode(ctx, SSL_MODE_ASYNC);
5e6f9775 1704 }
28e5ea88 1705
36b2cfb1
F		 1706 if (max_send_fragment > 0
1707 && !SSL_CTX_set_max_send_fragment(ctx, max_send_fragment)) {
1708 BIO_printf(bio_err, "%s: Max send fragment size %u is out of permitted range\n",
1709 prog, max_send_fragment);
1710 goto end;
1711 }
28e5ea88 1712
36b2cfb1
F		 1713 if (split_send_fragment > 0
1714 && !SSL_CTX_set_split_send_fragment(ctx, split_send_fragment)) {
1715 BIO_printf(bio_err, "%s: Split send fragment size %u is out of permitted range\n",
1716 prog, split_send_fragment);
1717 goto end;
032c6d21 1718 }
36b2cfb1
F		 1719
1720 if (max_pipelines > 0
1721 && !SSL_CTX_set_max_pipelines(ctx, max_pipelines)) {
1722 BIO_printf(bio_err, "%s: Max pipelines %u is out of permitted range\n",
1723 prog, max_pipelines);
1724 goto end;
032c6d21 1725 }
7e25dd6d 1726
dad78fb1
MC		 1727 if (read_buf_len > 0) {
1728 SSL_CTX_set_default_read_buffer_len(ctx, read_buf_len);
1729 }
1730
cf72c757
F		 1731 if (maxfraglen > 0
1732 && !SSL_CTX_set_tlsext_max_fragment_length(ctx, maxfraglen)) {
1733 BIO_printf(bio_err,
1734 "%s: Max Fragment Length code %u is out of permitted values"
1735 "\n", prog, maxfraglen);
1736 goto end;
1737 }
1738
0f113f3e
MC		 1739 if (!ssl_load_stores(ctx, vfyCApath, vfyCAfile, chCApath, chCAfile,
1740 crls, crl_download)) {
1741 BIO_printf(bio_err, "Error loading store locations\n");
1742 ERR_print_errors(bio_err);
1743 goto end;
1744 }
d2add501
DSH		 1745 if (ReqCAfile != NULL) {
1746 STACK_OF(X509_NAME) *nm = sk_X509_NAME_new_null();
5969a2dd 1747
d2add501
DSH		 1748 if (nm == NULL || !SSL_add_file_cert_subjects_to_stack(nm, ReqCAfile)) {
1749 sk_X509_NAME_pop_free(nm, X509_NAME_free);
1750 BIO_printf(bio_err, "Error loading CA names\n");
1751 ERR_print_errors(bio_err);
1752 goto end;
1753 }
1754 SSL_CTX_set0_CA_list(ctx, nm);
1755 }
59d2d48f 1756#ifndef OPENSSL_NO_ENGINE
0f113f3e
MC		 1757 if (ssl_client_engine) {
1758 if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine)) {
1759 BIO_puts(bio_err, "Error setting client auth engine\n");
1760 ERR_print_errors(bio_err);
1761 ENGINE_free(ssl_client_engine);
1762 goto end;
1763 }
1764 ENGINE_free(ssl_client_engine);
1765 }
59d2d48f
DSH		 1766#endif
1767
ddac1974 1768#ifndef OPENSSL_NO_PSK
dba31777 1769 if (psk_key != NULL) {
0f113f3e 1770 if (c_debug)
d6073e27 1771 BIO_printf(bio_c_out, "PSK key given, setting client callback\n");
0f113f3e
MC		 1772 SSL_CTX_set_psk_client_callback(ctx, psk_client_cb);
1773 }
e783bae2 1774#endif
e261bdd1
MC		 1775 if (psksessf != NULL) {
1776 BIO *stmp = BIO_new_file(psksessf, "r");
1777
1778 if (stmp == NULL) {
1779 BIO_printf(bio_err, "Can't open PSK session file %s\n", psksessf);
1780 ERR_print_errors(bio_err);
1781 goto end;
1782 }
1783 psksess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
1784 BIO_free(stmp);
1785 if (psksess == NULL) {
1786 BIO_printf(bio_err, "Can't read PSK session file %s\n", psksessf);
1787 ERR_print_errors(bio_err);
1788 goto end;
1789 }
e261bdd1 1790 }
5ffff599
MC		 1791 if (psk_key != NULL || psksess != NULL)
1792 SSL_CTX_set_psk_use_session_callback(ctx, psk_use_session_cb);
1793
e783bae2 1794#ifndef OPENSSL_NO_SRTP
ac59d705 1795 if (srtp_profiles != NULL) {
7e1b7485
RS		 1796 /* Returns 0 on success! */
1797 if (SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles) != 0) {
ac59d705
MC		 1798 BIO_printf(bio_err, "Error setting SRTP profile\n");
1799 ERR_print_errors(bio_err);
1800 goto end;
1801 }
1802 }
0f113f3e 1803#endif
7e1b7485 1804
2234212c 1805 if (exc != NULL)
0f113f3e 1806 ssl_ctx_set_excert(ctx, exc);
d02b48c6 1807
e481f9b9 1808#if !defined(OPENSSL_NO_NEXTPROTONEG)
2234212c 1809 if (next_proto.data != NULL)
0f113f3e 1810 SSL_CTX_set_next_proto_select_cb(ctx, next_proto_cb, &next_proto);
e481f9b9 1811#endif
0f113f3e 1812 if (alpn_in) {
817cd0d5 1813 size_t alpn_len;
0f113f3e
MC		 1814 unsigned char *alpn = next_protos_parse(&alpn_len, alpn_in);
1815
1816 if (alpn == NULL) {
1817 BIO_printf(bio_err, "Error parsing -alpn argument\n");
1818 goto end;
1819 }
7e1b7485
RS		 1820 /* Returns 0 on success! */
1821 if (SSL_CTX_set_alpn_protos(ctx, alpn, alpn_len) != 0) {
d6073e27 1822 BIO_printf(bio_err, "Error setting ALPN\n");
ac59d705
MC		 1823 goto end;
1824 }
0f113f3e
MC		 1825 OPENSSL_free(alpn);
1826 }
e481f9b9 1827
7e1b7485 1828 for (i = 0; i < serverinfo_count; i++) {
61986d32 1829 if (!SSL_CTX_add_client_custom_ext(ctx,
7e1b7485
RS		 1830 serverinfo_types[i],
1831 NULL, NULL, NULL,
1832 serverinfo_cli_parse_cb, NULL)) {
1833 BIO_printf(bio_err,
d6073e27
F		 1834 "Warning: Unable to add custom extension %u, skipping\n",
1835 serverinfo_types[i]);
ac59d705 1836 }
0f113f3e 1837 }
ee2ffc27 1838
0f113f3e
MC		 1839 if (state)
1840 SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback);
d02b48c6 1841
dd696a55 1842#ifndef OPENSSL_NO_CT
43341433
VD		 1843 /* Enable SCT processing, without early connection termination */
1844 if (ct_validation &&
1845 !SSL_CTX_enable_ct(ctx, SSL_CT_VALIDATION_PERMISSIVE)) {
dd696a55
RP		 1846 ERR_print_errors(bio_err);
1847 goto end;
1848 }
1849
70073f3e 1850 if (!ctx_set_ctlog_list_file(ctx, ctlog_file)) {
43341433 1851 if (ct_validation) {
328f36c5
RP		 1852 ERR_print_errors(bio_err);
1853 goto end;
1854 }
1855
1856 /*
1857 * If CT validation is not enabled, the log list isn't needed so don't
1858 * show errors or abort. We try to load it regardless because then we
1859 * can show the names of the logs any SCTs came from (SCTs may be seen
1860 * even with validation disabled).
1861 */
1862 ERR_clear_error();
dd696a55
RP		 1863 }
1864#endif
1865
0f113f3e 1866 SSL_CTX_set_verify(ctx, verify, verify_callback);
d02b48c6 1867
2b6bcb70 1868 if (!ctx_set_verify_locations(ctx, CAfile, CApath, noCAfile, noCApath)) {
0f113f3e 1869 ERR_print_errors(bio_err);
7e1b7485 1870 goto end;
0f113f3e 1871 }
d02b48c6 1872
0f113f3e 1873 ssl_ctx_add_crls(ctx, crls, crl_download);
fdb78f3d 1874
0f113f3e
MC		 1875 if (!set_cert_key_stuff(ctx, cert, key, chain, build_chain))
1876 goto end;
74ecfab4 1877
11ba87f2 1878 if (!noservername) {
0f113f3e
MC		 1879 tlsextcbp.biodebug = bio_err;
1880 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
1881 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
1882 }
1883# ifndef OPENSSL_NO_SRP
1884 if (srp_arg.srplogin) {
1885 if (!srp_lateuser && !SSL_CTX_set_srp_username(ctx, srp_arg.srplogin)) {
1886 BIO_printf(bio_err, "Unable to set SRP username\n");
1887 goto end;
1888 }
1889 srp_arg.msg = c_msg;
1890 srp_arg.debug = c_debug;
1891 SSL_CTX_set_srp_cb_arg(ctx, &srp_arg);
1892 SSL_CTX_set_srp_client_pwd_callback(ctx, ssl_give_srp_client_pwd_cb);
1893 SSL_CTX_set_srp_strength(ctx, srp_arg.strength);
1894 if (c_msg || c_debug || srp_arg.amp == 0)
1895 SSL_CTX_set_srp_verify_param_callback(ctx,
1896 ssl_srp_verify_param_cb);
1897 }
1898# endif
0f113f3e 1899
cddd424a
VD		 1900 if (dane_tlsa_domain != NULL) {
1901 if (SSL_CTX_dane_enable(ctx) <= 0) {
1902 BIO_printf(bio_err,
d6073e27
F		 1903 "%s: Error enabling DANE TLSA authentication.\n",
1904 prog);
cddd424a
VD		 1905 ERR_print_errors(bio_err);
1906 goto end;
1907 }
1908 }
1909
be62b22b
MC		 1910 /*
1911 * In TLSv1.3 NewSessionTicket messages arrive after the handshake and can
1912 * come at any time. Therefore we use a callback to write out the session
1913 * when we know about it. This approach works for < TLSv1.3 as well.
1914 */
2234212c 1915 if (sess_out != NULL) {
be62b22b
MC		 1916 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_CLIENT
1917 | SSL_SESS_CACHE_NO_INTERNAL_STORE);
1918 SSL_CTX_sess_set_new_cb(ctx, new_session_cb);
1919 }
1920
4bf73e9f
PW		 1921 if (set_keylog_file(ctx, keylog_file))
1922 goto end;
1923
0f113f3e 1924 con = SSL_new(ctx);
f84a648c
K		 1925 if (con == NULL)
1926 goto end;
1927
9d75dce3
TS		 1928 if (force_pha)
1929 SSL_force_post_handshake_auth(con);
1930
2234212c 1931 if (sess_in != NULL) {
0f113f3e
MC		 1932 SSL_SESSION *sess;
1933 BIO *stmp = BIO_new_file(sess_in, "r");
2234212c 1934 if (stmp == NULL) {
0f113f3e
MC		 1935 BIO_printf(bio_err, "Can't open session file %s\n", sess_in);
1936 ERR_print_errors(bio_err);
1937 goto end;
1938 }
1939 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
1940 BIO_free(stmp);
2234212c 1941 if (sess == NULL) {
0f113f3e
MC		 1942 BIO_printf(bio_err, "Can't open session file %s\n", sess_in);
1943 ERR_print_errors(bio_err);
1944 goto end;
1945 }
61986d32 1946 if (!SSL_set_session(con, sess)) {
ac59d705
MC		 1947 BIO_printf(bio_err, "Can't set session\n");
1948 ERR_print_errors(bio_err);
1949 goto end;
1950 }
b510b740 1951
0f113f3e
MC		 1952 SSL_SESSION_free(sess);
1953 }
1954
1955 if (fallback_scsv)
1956 SSL_set_mode(con, SSL_MODE_SEND_FALLBACK_SCSV);
cf6da053 1957
11ba87f2
MC		 1958 if (!noservername && (servername != NULL || dane_tlsa_domain == NULL)) {
1959 if (servername == NULL)
1960 servername = (host == NULL) ? "localhost" : host;
0f113f3e
MC		 1961 if (!SSL_set_tlsext_host_name(con, servername)) {
1962 BIO_printf(bio_err, "Unable to set TLS servername extension.\n");
1963 ERR_print_errors(bio_err);
1964 goto end;
1965 }
1966 }
d02b48c6 1967
cddd424a
VD		 1968 if (dane_tlsa_domain != NULL) {
1969 if (SSL_dane_enable(con, dane_tlsa_domain) <= 0) {
1970 BIO_printf(bio_err, "%s: Error enabling DANE TLSA "
1971 "authentication.\n", prog);
1972 ERR_print_errors(bio_err);
1973 goto end;
1974 }
1975 if (dane_tlsa_rrset == NULL) {
1976 BIO_printf(bio_err, "%s: DANE TLSA authentication requires at "
bc87fb6b 1977 "least one -dane_tlsa_rrdata option.\n", prog);
cddd424a
VD		 1978 goto end;
1979 }
1980 if (tlsa_import_rrset(con, dane_tlsa_rrset) <= 0) {
1981 BIO_printf(bio_err, "%s: Failed to import any TLSA "
1982 "records.\n", prog);
1983 goto end;
1984 }
c4fbed6c
VD		 1985 if (dane_ee_no_name)
1986 SSL_dane_set_flags(con, DANE_FLAG_NO_DANE_EE_NAMECHECKS);
cddd424a 1987 } else if (dane_tlsa_rrset != NULL) {
bde136c8
F		 1988 BIO_printf(bio_err, "%s: DANE TLSA authentication requires the "
1989 "-dane_tlsa_domain option.\n", prog);
1990 goto end;
cddd424a
VD		 1991 }
1992
0f113f3e 1993 re_start:
ebc01683
JH		 1994 if (init_client(&s, host, port, bindhost, bindport, socket_family,
1995 socket_type, protocol) == 0) {
0f113f3e 1996 BIO_printf(bio_err, "connect:errno=%d\n", get_last_socket_error());
8731a4fc 1997 BIO_closesocket(s);
0f113f3e
MC		 1998 goto end;
1999 }
2000 BIO_printf(bio_c_out, "CONNECTED(%08X)\n", s);
d02b48c6 2001
0f113f3e 2002 if (c_nbio) {
ba810815 2003 if (!BIO_socket_nbio(s, 1)) {
0f113f3e
MC		 2004 ERR_print_errors(bio_err);
2005 goto end;
2006 }
ba810815 2007 BIO_printf(bio_c_out, "Turned on non blocking io\n");
0f113f3e 2008 }
40a8e9c2 2009#ifndef OPENSSL_NO_DTLS
8ccc2377 2010 if (isdtls) {
642a166c 2011 union BIO_sock_info_u peer_info;
0f113f3e 2012
8ccc2377
MC		 2013#ifndef OPENSSL_NO_SCTP
2014 if (protocol == IPPROTO_SCTP)
2015 sbio = BIO_new_dgram_sctp(s, BIO_NOCLOSE);
2016 else
2017#endif
2018 sbio = BIO_new_dgram(s, BIO_NOCLOSE);
2019
642a166c
RL		 2020 if ((peer_info.addr = BIO_ADDR_new()) == NULL) {
2021 BIO_printf(bio_err, "memory allocation failure\n");
2022 BIO_closesocket(s);
d6accd50 2023 goto end;
642a166c
RL		 2024 }
2025 if (!BIO_sock_info(s, BIO_SOCK_INFO_ADDRESS, &peer_info)) {
0f113f3e
MC		 2026 BIO_printf(bio_err, "getsockname:errno=%d\n",
2027 get_last_socket_error());
642a166c 2028 BIO_ADDR_free(peer_info.addr);
8731a4fc 2029 BIO_closesocket(s);
0f113f3e
MC		 2030 goto end;
2031 }
2032
642a166c
RL		 2033 (void)BIO_ctrl_set_connected(sbio, peer_info.addr);
2034 BIO_ADDR_free(peer_info.addr);
2035 peer_info.addr = NULL;
0f113f3e
MC		 2036
2037 if (enable_timeouts) {
2038 timeout.tv_sec = 0;
2039 timeout.tv_usec = DGRAM_RCV_TIMEOUT;
2040 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
2041
2042 timeout.tv_sec = 0;
2043 timeout.tv_usec = DGRAM_SND_TIMEOUT;
2044 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
2045 }
2046
2047 if (socket_mtu) {
2048 if (socket_mtu < DTLS_get_link_min_mtu(con)) {
2049 BIO_printf(bio_err, "MTU too small. Must be at least %ld\n",
2050 DTLS_get_link_min_mtu(con));
2051 BIO_free(sbio);
2052 goto shut;
2053 }
2054 SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
2055 if (!DTLS_set_link_mtu(con, socket_mtu)) {
2056 BIO_printf(bio_err, "Failed to set MTU\n");
2057 BIO_free(sbio);
2058 goto shut;
2059 }
2234212c 2060 } else {
0f113f3e
MC		 2061 /* want to do MTU discovery */
2062 BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
2234212c 2063 }
0f113f3e 2064 } else
40a8e9c2 2065#endif /* OPENSSL_NO_DTLS */
0f113f3e
MC		 2066 sbio = BIO_new_socket(s, BIO_NOCLOSE);
2067
2068 if (nbio_test) {
2069 BIO *test;
2070
2071 test = BIO_new(BIO_f_nbio_test());
2072 sbio = BIO_push(test, sbio);
2073 }
2074
2075 if (c_debug) {
0f113f3e
MC		 2076 BIO_set_callback(sbio, bio_dump_callback);
2077 BIO_set_callback_arg(sbio, (char *)bio_c_out);
2078 }
2079 if (c_msg) {
93ab9e42 2080#ifndef OPENSSL_NO_SSL_TRACE
0f113f3e
MC		 2081 if (c_msg == 2)
2082 SSL_set_msg_callback(con, SSL_trace);
2083 else
93ab9e42 2084#endif
0f113f3e
MC		 2085 SSL_set_msg_callback(con, msg_cb);
2086 SSL_set_msg_callback_arg(con, bio_c_msg ? bio_c_msg : bio_c_out);
2087 }
e481f9b9 2088
0f113f3e
MC		 2089 if (c_tlsextdebug) {
2090 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2091 SSL_set_tlsext_debug_arg(con, bio_c_out);
2092 }
3e41ac35 2093#ifndef OPENSSL_NO_OCSP
0f113f3e
MC		 2094 if (c_status_req) {
2095 SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp);
2096 SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb);
2097 SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out);
0f113f3e 2098 }
3e41ac35 2099#endif
0f113f3e
MC		 2100
2101 SSL_set_bio(con, sbio, sbio);
2102 SSL_set_connect_state(con);
2103
2104 /* ok, lets connect */
51e5133d
RL		 2105 if (fileno_stdin() > SSL_get_fd(con))
2106 width = fileno_stdin() + 1;
0d3b6583
RL		 2107 else
2108 width = SSL_get_fd(con) + 1;
51e5133d 2109
0f113f3e
MC		 2110 read_tty = 1;
2111 write_tty = 0;
2112 tty_on = 0;
2113 read_ssl = 1;
2114 write_ssl = 1;
2115
2116 cbuf_len = 0;
2117 cbuf_off = 0;
2118 sbuf_len = 0;
2119 sbuf_off = 0;
2120
7e1b7485
RS		 2121 switch ((PROTOCOL_CHOICE) starttls_proto) {
2122 case PROTO_OFF:
2123 break;
9576545a 2124 case PROTO_LMTP:
7e1b7485
RS		 2125 case PROTO_SMTP:
2126 {
2127 /*
2128 * This is an ugly hack that does a lot of assumptions. We do
2129 * have to handle multi-line responses which may come in a single
2130 * packet or not. We therefore have to use BIO_gets() which does
2131 * need a buffering BIO. So during the initial chitchat we do
2132 * push a buffering BIO into the chain that is removed again
2133 * later on to not disturb the rest of the s_client operation.
2134 */
2135 int foundit = 0;
2136 BIO *fbio = BIO_new(BIO_f_buffer());
20967afb 2137
7e1b7485 2138 BIO_push(fbio, sbio);
9576545a 2139 /* Wait for multi-line response to end from LMTP or SMTP */
7e1b7485
RS		 2140 do {
2141 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
20967afb 2142 } while (mbuf_len > 3 && mbuf[3] == '-');
8176431d
PY		 2143 if (protohost == NULL)
2144 protohost = "mail.example.com";
7524c520 2145 if (starttls_proto == (int)PROTO_LMTP)
8176431d 2146 BIO_printf(fbio, "LHLO %s\r\n", protohost);
7524c520 2147 else
8176431d 2148 BIO_printf(fbio, "EHLO %s\r\n", protohost);
7e1b7485 2149 (void)BIO_flush(fbio);
9576545a
RS		 2150 /*
2151 * Wait for multi-line response to end LHLO LMTP or EHLO SMTP
2152 * response.
2153 */
7e1b7485
RS		 2154 do {
2155 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2156 if (strstr(mbuf, "STARTTLS"))
2157 foundit = 1;
20967afb 2158 } while (mbuf_len > 3 && mbuf[3] == '-');
7e1b7485
RS		 2159 (void)BIO_flush(fbio);
2160 BIO_pop(fbio);
2161 BIO_free(fbio);
2162 if (!foundit)
2163 BIO_printf(bio_err,
20967afb 2164 "Didn't find STARTTLS in server response,"
c7944cf1 2165 " trying anyway...\n");
7e1b7485
RS		 2166 BIO_printf(sbio, "STARTTLS\r\n");
2167 BIO_read(sbio, sbuf, BUFSIZZ);
0f113f3e 2168 }
7e1b7485
RS		 2169 break;
2170 case PROTO_POP3:
2171 {
2172 BIO_read(sbio, mbuf, BUFSIZZ);
2173 BIO_printf(sbio, "STLS\r\n");
2174 mbuf_len = BIO_read(sbio, sbuf, BUFSIZZ);
2175 if (mbuf_len < 0) {
2176 BIO_printf(bio_err, "BIO_read failed\n");
2177 goto end;
2178 }
0f113f3e 2179 }
7e1b7485
RS		 2180 break;
2181 case PROTO_IMAP:
2182 {
2183 int foundit = 0;
2184 BIO *fbio = BIO_new(BIO_f_buffer());
20967afb 2185
7e1b7485
RS		 2186 BIO_push(fbio, sbio);
2187 BIO_gets(fbio, mbuf, BUFSIZZ);
2188 /* STARTTLS command requires CAPABILITY... */
2189 BIO_printf(fbio, ". CAPABILITY\r\n");
2190 (void)BIO_flush(fbio);
2191 /* wait for multi-line CAPABILITY response */
2192 do {
2193 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2194 if (strstr(mbuf, "STARTTLS"))
2195 foundit = 1;
2196 }
2197 while (mbuf_len > 3 && mbuf[0] != '.');
2198 (void)BIO_flush(fbio);
2199 BIO_pop(fbio);
2200 BIO_free(fbio);
2201 if (!foundit)
2202 BIO_printf(bio_err,
20967afb 2203 "Didn't find STARTTLS in server response,"
c7944cf1 2204 " trying anyway...\n");
7e1b7485
RS		 2205 BIO_printf(sbio, ". STARTTLS\r\n");
2206 BIO_read(sbio, sbuf, BUFSIZZ);
0f113f3e 2207 }
7e1b7485
RS		 2208 break;
2209 case PROTO_FTP:
2210 {
2211 BIO *fbio = BIO_new(BIO_f_buffer());
20967afb 2212
7e1b7485
RS		 2213 BIO_push(fbio, sbio);
2214 /* wait for multi-line response to end from FTP */
2215 do {
2216 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2217 }
2218 while (mbuf_len > 3 && mbuf[3] == '-');
2219 (void)BIO_flush(fbio);
2220 BIO_pop(fbio);
2221 BIO_free(fbio);
2222 BIO_printf(sbio, "AUTH TLS\r\n");
2223 BIO_read(sbio, sbuf, BUFSIZZ);
0f113f3e 2224 }
7e1b7485
RS		 2225 break;
2226 case PROTO_XMPP:
898ea7b8 2227 case PROTO_XMPP_SERVER:
0f113f3e 2228 {
7e1b7485
RS		 2229 int seen = 0;
2230 BIO_printf(sbio, "<stream:stream "
2231 "xmlns:stream='http://etherx.jabber.org/streams' "
898ea7b8
KE		 2232 "xmlns='jabber:%s' to='%s' version='1.0'>",
2233 starttls_proto == PROTO_XMPP ? "client" : "server",
8176431d 2234 protohost ? protohost : host);
0f113f3e 2235 seen = BIO_read(sbio, mbuf, BUFSIZZ);
20967afb
RS		 2236 if (seen < 0) {
2237 BIO_printf(bio_err, "BIO_read failed\n");
2238 goto end;
2239 }
2240 mbuf[seen] = '\0';
7e1b7485
RS		 2241 while (!strstr
2242 (mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'")
2243 && !strstr(mbuf,
2244 "<starttls xmlns=\"urn:ietf:params:xml:ns:xmpp-tls\""))
2245 {
2246 seen = BIO_read(sbio, mbuf, BUFSIZZ);
0f113f3e 2247
7e1b7485
RS		 2248 if (seen <= 0)
2249 goto shut;
0f113f3e 2250
20967afb 2251 mbuf[seen] = '\0';
7e1b7485
RS		 2252 }
2253 BIO_printf(sbio,
2254 "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>");
2255 seen = BIO_read(sbio, sbuf, BUFSIZZ);
20967afb
RS		 2256 if (seen < 0) {
2257 BIO_printf(bio_err, "BIO_read failed\n");
2258 goto shut;
2259 }
2260 sbuf[seen] = '\0';
7e1b7485
RS		 2261 if (!strstr(sbuf, "<proceed"))
2262 goto shut;
20967afb 2263 mbuf[0] = '\0';
0f113f3e 2264 }
7e1b7485 2265 break;
d8c25de5
RS		 2266 case PROTO_TELNET:
2267 {
2268 static const unsigned char tls_do[] = {
2269 /* IAC DO START_TLS */
2270 255, 253, 46
2271 };
2272 static const unsigned char tls_will[] = {
2273 /* IAC WILL START_TLS */
2274 255, 251, 46
2275 };
2276 static const unsigned char tls_follows[] = {
2277 /* IAC SB START_TLS FOLLOWS IAC SE */
2278 255, 250, 46, 1, 255, 240
2279 };
2280 int bytes;
2281
2282 /* Telnet server should demand we issue START_TLS */
2283 bytes = BIO_read(sbio, mbuf, BUFSIZZ);
2284 if (bytes != 3 || memcmp(mbuf, tls_do, 3) != 0)
2285 goto shut;
2286 /* Agree to issue START_TLS and send the FOLLOWS sub-command */
2287 BIO_write(sbio, tls_will, 3);
2288 BIO_write(sbio, tls_follows, 6);
2289 (void)BIO_flush(sbio);
2290 /* Telnet server also sent the FOLLOWS sub-command */
2291 bytes = BIO_read(sbio, mbuf, BUFSIZZ);
2292 if (bytes != 6 || memcmp(mbuf, tls_follows, 6) != 0)
2293 goto shut;
2294 }
552bf8ec
MT		 2295 break;
2296 case PROTO_CONNECT:
2297 {
ec2a0e60
RL		 2298 enum {
2299 error_proto, /* Wrong protocol, not even HTTP */
2300 error_connect, /* CONNECT failed */
2301 success
2302 } foundit = error_connect;
552bf8ec
MT		 2303 BIO *fbio = BIO_new(BIO_f_buffer());
2304
2305 BIO_push(fbio, sbio);
8230f6c7 2306 BIO_printf(fbio, "CONNECT %s HTTP/1.0\r\n\r\n", connectstr);
552bf8ec 2307 (void)BIO_flush(fbio);
ec2a0e60
RL		 2308 /*
2309 * The first line is the HTTP response. According to RFC 7230,
2310 * it's formated exactly like this:
2311 *
2312 * HTTP/d.d ddd Reason text\r\n
2313 */
2314 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
3dce1099
RS		 2315 if (mbuf_len < (int)strlen("HTTP/1.0 200")) {
2316 BIO_printf(bio_err,
2317 "%s: HTTP CONNECT failed, insufficient response "
2318 "from proxy (got %d octets)\n", prog, mbuf_len);
2319 (void)BIO_flush(fbio);
2320 BIO_pop(fbio);
2321 BIO_free(fbio);
2322 goto shut;
2323 }
ec2a0e60
RL		 2324 if (mbuf[8] != ' ') {
2325 BIO_printf(bio_err,
2326 "%s: HTTP CONNECT failed, incorrect response "
2327 "from proxy\n", prog);
2328 foundit = error_proto;
2329 } else if (mbuf[9] != '2') {
2330 BIO_printf(bio_err, "%s: HTTP CONNECT failed: %s ", prog,
2331 &mbuf[9]);
2332 } else {
2333 foundit = success;
2334 }
2335 if (foundit != error_proto) {
2336 /* Read past all following headers */
2337 do {
2338 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2339 } while (mbuf_len > 2);
2340 }
552bf8ec
MT		 2341 (void)BIO_flush(fbio);
2342 BIO_pop(fbio);
2343 BIO_free(fbio);
ec2a0e60 2344 if (foundit != success) {
552bf8ec
MT		 2345 goto shut;
2346 }
2347 }
2348 break;
cfb4f1ef
NPB		 2349 case PROTO_IRC:
2350 {
2351 int numeric;
2352 BIO *fbio = BIO_new(BIO_f_buffer());
2353
2354 BIO_push(fbio, sbio);
2355 BIO_printf(fbio, "STARTTLS\r\n");
2356 (void)BIO_flush(fbio);
2357 width = SSL_get_fd(con) + 1;
2358
2359 do {
2360 numeric = 0;
2361
2362 FD_ZERO(&readfds);
2363 openssl_fdset(SSL_get_fd(con), &readfds);
2364 timeout.tv_sec = S_CLIENT_IRC_READ_TIMEOUT;
2365 timeout.tv_usec = 0;
2366 /*
2367 * If the IRCd doesn't respond within
2368 * S_CLIENT_IRC_READ_TIMEOUT seconds, assume
2369 * it doesn't support STARTTLS. Many IRCds
2370 * will not give _any_ sort of response to a
2371 * STARTTLS command when it's not supported.
2372 */
2373 if (!BIO_get_buffer_num_lines(fbio)
2374 && !BIO_pending(fbio)
2375 && !BIO_pending(sbio)
2376 && select(width, (void *)&readfds, NULL, NULL,
2377 &timeout) < 1) {
2378 BIO_printf(bio_err,
2379 "Timeout waiting for response (%d seconds).\n",
2380 S_CLIENT_IRC_READ_TIMEOUT);
2381 break;
2382 }
2383
2384 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2385 if (mbuf_len < 1 || sscanf(mbuf, "%*s %d", &numeric) != 1)
2386 break;
2387 /* :example.net 451 STARTTLS :You have not registered */
2388 /* :example.net 421 STARTTLS :Unknown command */
2389 if ((numeric == 451 || numeric == 421)
2390 && strstr(mbuf, "STARTTLS") != NULL) {
2391 BIO_printf(bio_err, "STARTTLS not supported: %s", mbuf);
2392 break;
2393 }
2394 if (numeric == 691) {
2395 BIO_printf(bio_err, "STARTTLS negotiation failed: ");
2396 ERR_print_errors(bio_err);
2397 break;
2398 }
2399 } while (numeric != 670);
2400
2401 (void)BIO_flush(fbio);
2402 BIO_pop(fbio);
2403 BIO_free(fbio);
2404 if (numeric != 670) {
2405 BIO_printf(bio_err, "Server does not support STARTTLS.\n");
2406 ret = 1;
2407 goto shut;
2408 }
2409 }
b2e54eb8 2410 break;
a2d9cfba
KT		 2411 case PROTO_MYSQL:
2412 {
2413 /* SSL request packet */
2414 static const unsigned char ssl_req[] = {
2415 /* payload_length, sequence_id */
2416 0x20, 0x00, 0x00, 0x01,
2417 /* payload */
2418 /* capability flags, CLIENT_SSL always set */
2419 0x85, 0xae, 0x7f, 0x00,
2420 /* max-packet size */
2421 0x00, 0x00, 0x00, 0x01,
2422 /* character set */
2423 0x21,
2424 /* string[23] reserved (all [0]) */
2425 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
2426 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
2427 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
2428 };
2429 int bytes = 0;
2430 int ssl_flg = 0x800;
2431 int pos;
2432 const unsigned char *packet = (const unsigned char *)sbuf;
2433
2434 /* Receiving Initial Handshake packet. */
2435 bytes = BIO_read(sbio, (void *)packet, BUFSIZZ);
2436 if (bytes < 0) {
2437 BIO_printf(bio_err, "BIO_read failed\n");
2438 goto shut;
2439 /* Packet length[3], Packet number[1] + minimum payload[17] */
2440 } else if (bytes < 21) {
2441 BIO_printf(bio_err, "MySQL packet too short.\n");
2442 goto shut;
2443 } else if (bytes != (4 + packet[0] +
2444 (packet[1] << 8) +
2445 (packet[2] << 16))) {
2446 BIO_printf(bio_err, "MySQL packet length does not match.\n");
2447 goto shut;
2448 /* protocol version[1] */
2449 } else if (packet[4] != 0xA) {
2450 BIO_printf(bio_err,
2451 "Only MySQL protocol version 10 is supported.\n");
2452 goto shut;
2453 }
2454
2455 pos = 5;
2456 /* server version[string+NULL] */
2457 for (;;) {
2458 if (pos >= bytes) {
2459 BIO_printf(bio_err, "Cannot confirm server version. ");
2460 goto shut;
2461 } else if (packet[pos++] == '\0') {
2462 break;
2463 }
a2d9cfba
KT		 2464 }
2465
8530039a 2466 /* make sure we have at least 15 bytes left in the packet */
a2d9cfba
KT		 2467 if (pos + 15 > bytes) {
2468 BIO_printf(bio_err,
2469 "MySQL server handshake packet is broken.\n");
2470 goto shut;
2471 }
2472
2473 pos += 12; /* skip over conn id[4] + SALT[8] */
2474 if (packet[pos++] != '\0') { /* verify filler */
2475 BIO_printf(bio_err,
2476 "MySQL packet is broken.\n");
2477 goto shut;
2478 }
2479
2480 /* capability flags[2] */
2481 if (!((packet[pos] + (packet[pos + 1] << 8)) & ssl_flg)) {
2482 BIO_printf(bio_err, "MySQL server does not support SSL.\n");
2483 goto shut;
2484 }
2485
2486 /* Sending SSL Handshake packet. */
2487 BIO_write(sbio, ssl_req, sizeof(ssl_req));
2488 (void)BIO_flush(sbio);
2489 }
2490 break;
b2e54eb8
VV		 2491 case PROTO_POSTGRES:
2492 {
2493 static const unsigned char ssl_request[] = {
2494 /* Length SSLRequest */
2495 0, 0, 0, 8, 4, 210, 22, 47
2496 };
2497 int bytes;
2498
2499 /* Send SSLRequest packet */
2500 BIO_write(sbio, ssl_request, 8);
2501 (void)BIO_flush(sbio);
2502
2503 /* Reply will be a single S if SSL is enabled */
2504 bytes = BIO_read(sbio, sbuf, BUFSIZZ);
2505 if (bytes != 1 || sbuf[0] != 'S')
2506 goto shut;
2507 }
2508 break;
8f85aa6b
RS		 2509 case PROTO_NNTP:
2510 {
2511 int foundit = 0;
2512 BIO *fbio = BIO_new(BIO_f_buffer());
2513
2514 BIO_push(fbio, sbio);
2515 BIO_gets(fbio, mbuf, BUFSIZZ);
2516 /* STARTTLS command requires CAPABILITIES... */
2517 BIO_printf(fbio, "CAPABILITIES\r\n");
2518 (void)BIO_flush(fbio);
2519 /* wait for multi-line CAPABILITIES response */
2520 do {
2521 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2522 if (strstr(mbuf, "STARTTLS"))
2523 foundit = 1;
2524 } while (mbuf_len > 1 && mbuf[0] != '.');
2525 (void)BIO_flush(fbio);
2526 BIO_pop(fbio);
2527 BIO_free(fbio);
2528 if (!foundit)
2529 BIO_printf(bio_err,
2530 "Didn't find STARTTLS in server response,"
2531 " trying anyway...\n");
2532 BIO_printf(sbio, "STARTTLS\r\n");
af7e05c7
RS		 2533 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
2534 if (mbuf_len < 0) {
2535 BIO_printf(bio_err, "BIO_read failed\n");
2536 goto end;
2537 }
2538 mbuf[mbuf_len] = '\0';
2539 if (strstr(mbuf, "382") == NULL) {
2540 BIO_printf(bio_err, "STARTTLS failed: %s", mbuf);
2541 goto shut;
2542 }
8f85aa6b
RS		 2543 }
2544 break;
20967afb
RS		 2545 case PROTO_SIEVE:
2546 {
2547 int foundit = 0;
2548 BIO *fbio = BIO_new(BIO_f_buffer());
2549
2550 BIO_push(fbio, sbio);
2551 /* wait for multi-line response to end from Sieve */
2552 do {
2553 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2554 /*
2555 * According to RFC 5804 § 1.7, capability
2556 * is case-insensitive, make it uppercase
2557 */
2558 if (mbuf_len > 1 && mbuf[0] == '"') {
2559 make_uppercase(mbuf);
2560 if (strncmp(mbuf, "\"STARTTLS\"", 10) == 0)
2561 foundit = 1;
2562 }
2563 } while (mbuf_len > 1 && mbuf[0] == '"');
2564 (void)BIO_flush(fbio);
2565 BIO_pop(fbio);
2566 BIO_free(fbio);
2567 if (!foundit)
2568 BIO_printf(bio_err,
2569 "Didn't find STARTTLS in server response,"
2570 " trying anyway...\n");
2571 BIO_printf(sbio, "STARTTLS\r\n");
2572 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
2573 if (mbuf_len < 0) {
2574 BIO_printf(bio_err, "BIO_read failed\n");
2575 goto end;
af7e05c7
RS		 2576 }
2577 mbuf[mbuf_len] = '\0';
2578 if (mbuf_len < 2) {
2579 BIO_printf(bio_err, "STARTTLS failed: %s", mbuf);
20967afb
RS		 2580 goto shut;
2581 }
2582 /*
2583 * According to RFC 5804 § 2.2, response codes are case-
2584 * insensitive, make it uppercase but preserve the response.
2585 */
20967afb
RS		 2586 strncpy(sbuf, mbuf, 2);
2587 make_uppercase(sbuf);
2588 if (strncmp(sbuf, "OK", 2) != 0) {
2589 BIO_printf(bio_err, "STARTTLS not supported: %s", mbuf);
2590 goto shut;
2591 }
2592 }
2593 break;
398b0bbd
RS		 2594 case PROTO_LDAP:
2595 {
2596 /* StartTLS Operation according to RFC 4511 */
2597 static char ldap_tls_genconf[] = "asn1=SEQUENCE:LDAPMessage\n"
2598 "[LDAPMessage]\n"
2599 "messageID=INTEGER:1\n"
2600 "extendedReq=EXPLICIT:23A,IMPLICIT:0C,"
2601 "FORMAT:ASCII,OCT:1.3.6.1.4.1.1466.20037\n";
2602 long errline = -1;
2603 char *genstr = NULL;
2604 int result = -1;
2605 ASN1_TYPE *atyp = NULL;
2606 BIO *ldapbio = BIO_new(BIO_s_mem());
2607 CONF *cnf = NCONF_new(NULL);
2608
2609 if (cnf == NULL) {
2610 BIO_free(ldapbio);
2611 goto end;
2612 }
2613 BIO_puts(ldapbio, ldap_tls_genconf);
2614 if (NCONF_load_bio(cnf, ldapbio, &errline) <= 0) {
2615 BIO_free(ldapbio);
2616 NCONF_free(cnf);
2617 if (errline <= 0) {
2618 BIO_printf(bio_err, "NCONF_load_bio failed\n");
2619 goto end;
2620 } else {
2621 BIO_printf(bio_err, "Error on line %ld\n", errline);
2622 goto end;
2623 }
2624 }
2625 BIO_free(ldapbio);
2626 genstr = NCONF_get_string(cnf, "default", "asn1");
2627 if (genstr == NULL) {
2628 NCONF_free(cnf);
2629 BIO_printf(bio_err, "NCONF_get_string failed\n");
2630 goto end;
2631 }
2632 atyp = ASN1_generate_nconf(genstr, cnf);
2633 if (atyp == NULL) {
2634 NCONF_free(cnf);
2635 BIO_printf(bio_err, "ASN1_generate_nconf failed\n");
2636 goto end;
2637 }
2638 NCONF_free(cnf);
2639
2640 /* Send SSLRequest packet */
2641 BIO_write(sbio, atyp->value.sequence->data,
2642 atyp->value.sequence->length);
2643 (void)BIO_flush(sbio);
2644 ASN1_TYPE_free(atyp);
2645
2646 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
2647 if (mbuf_len < 0) {
2648 BIO_printf(bio_err, "BIO_read failed\n");
2649 goto end;
2650 }
2651 result = ldap_ExtendedResponse_parse(mbuf, mbuf_len);
2652 if (result < 0) {
2653 BIO_printf(bio_err, "ldap_ExtendedResponse_parse failed\n");
2654 goto shut;
2655 } else if (result > 0) {
2656 BIO_printf(bio_err, "STARTTLS failed, LDAP Result Code: %i\n",
2657 result);
2658 goto shut;
2659 }
2660 mbuf_len = 0;
2661 }
2662 break;
0f113f3e
MC		 2663 }
2664
0a5ece5b 2665 if (early_data_file != NULL
add8d0e9
MC		 2666 && ((SSL_get0_session(con) != NULL
2667 && SSL_SESSION_get_max_early_data(SSL_get0_session(con)) > 0)
2668 || (psksess != NULL
2669 && SSL_SESSION_get_max_early_data(psksess) > 0))) {
923ac827
MC		 2670 BIO *edfile = BIO_new_file(early_data_file, "r");
2671 size_t readbytes, writtenbytes;
2672 int finish = 0;
2673
2674 if (edfile == NULL) {
2675 BIO_printf(bio_err, "Cannot open early data file\n");
2676 goto shut;
2677 }
2678
2679 while (!finish) {
2680 if (!BIO_read_ex(edfile, cbuf, BUFSIZZ, &readbytes))
2681 finish = 1;
2682
0665b4ed 2683 while (!SSL_write_early_data(con, cbuf, readbytes, &writtenbytes)) {
923ac827
MC		 2684 switch (SSL_get_error(con, 0)) {
2685 case SSL_ERROR_WANT_WRITE:
2686 case SSL_ERROR_WANT_ASYNC:
2687 case SSL_ERROR_WANT_READ:
2688 /* Just keep trying - busy waiting */
2689 continue;
2690 default:
2691 BIO_printf(bio_err, "Error writing early data\n");
2692 BIO_free(edfile);
dd5b98c5 2693 ERR_print_errors(bio_err);
923ac827
MC		 2694 goto shut;
2695 }
2696 }
2697 }
2698
2699 BIO_free(edfile);
2700 }
2701
0f113f3e
MC		 2702 for (;;) {
2703 FD_ZERO(&readfds);
2704 FD_ZERO(&writefds);
2705
2706 if ((SSL_version(con) == DTLS1_VERSION) &&
2707 DTLSv1_get_timeout(con, &timeout))
2708 timeoutp = &timeout;
2709 else
2710 timeoutp = NULL;
2711
12557a34 2712 if (!SSL_is_init_finished(con) && SSL_total_renegotiations(con) == 0
b07b2a1b 2713 && SSL_get_key_update_type(con) == SSL_KEY_UPDATE_NONE) {
0f113f3e
MC		 2714 in_init = 1;
2715 tty_on = 0;
2716 } else {
2717 tty_on = 1;
2718 if (in_init) {
2719 in_init = 0;
e481f9b9 2720
0f113f3e
MC		 2721 if (c_brief) {
2722 BIO_puts(bio_err, "CONNECTION ESTABLISHED\n");
ecf3a1fb 2723 print_ssl_summary(con);
0f113f3e
MC		 2724 }
2725
0d4d5ab8 2726 print_stuff(bio_c_out, con, full_log);
0f113f3e
MC		 2727 if (full_log > 0)
2728 full_log--;
2729
2730 if (starttls_proto) {
7e1b7485 2731 BIO_write(bio_err, mbuf, mbuf_len);
0f113f3e 2732 /* We don't need to know any more */
7e1b7485
RS		 2733 if (!reconnect)
2734 starttls_proto = PROTO_OFF;
0f113f3e
MC		 2735 }
2736
2737 if (reconnect) {
2738 reconnect--;
2739 BIO_printf(bio_c_out,
2740 "drop connection and then reconnect\n");
ec447924 2741 do_ssl_shutdown(con);
0f113f3e 2742 SSL_set_connect_state(con);
8731a4fc 2743 BIO_closesocket(SSL_get_fd(con));
0f113f3e
MC		 2744 goto re_start;
2745 }
2746 }
2747 }
2748
fd068d50 2749 ssl_pending = read_ssl && SSL_has_pending(con);
0f113f3e
MC		 2750
2751 if (!ssl_pending) {
1fbab1dc 2752#if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
0f113f3e 2753 if (tty_on) {
a3ef2c16
JD		 2754 /*
2755 * Note that select() returns when read _would not block_,
2756 * and EOF satisfies that. To avoid a CPU-hogging loop,
2757 * set the flag so we exit.
2758 */
2759 if (read_tty && !at_eof)
51e5133d
RL		 2760 openssl_fdset(fileno_stdin(), &readfds);
2761#if !defined(OPENSSL_SYS_VMS)
0f113f3e 2762 if (write_tty)
51e5133d 2763 openssl_fdset(fileno_stdout(), &writefds);
0d3b6583 2764#endif
0f113f3e
MC		 2765 }
2766 if (read_ssl)
2767 openssl_fdset(SSL_get_fd(con), &readfds);
2768 if (write_ssl)
2769 openssl_fdset(SSL_get_fd(con), &writefds);
06f4536a 2770#else
0f113f3e
MC		 2771 if (!tty_on || !write_tty) {
2772 if (read_ssl)
2773 openssl_fdset(SSL_get_fd(con), &readfds);
2774 if (write_ssl)
2775 openssl_fdset(SSL_get_fd(con), &writefds);
2776 }
2777#endif
0f113f3e
MC		 2778
2779 /*
2780 * Note: under VMS with SOCKETSHR the second parameter is
2781 * currently of type (int *) whereas under other systems it is
2782 * (void *) if you don't have a cast it will choke the compiler:
2783 * if you do have a cast then you can either go for (int *) or
2784 * (void *).
2785 */
3d7c4a5a 2786#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
0f113f3e
MC		 2787 /*
2788 * Under Windows/DOS we make the assumption that we can always
2789 * write to the tty: therefore if we need to write to the tty we
2790 * just fall through. Otherwise we timeout the select every
2791 * second and see if there are any keypresses. Note: this is a
2792 * hack, in a proper Windows application we wouldn't do this.
2793 */
2794 i = 0;
2795 if (!write_tty) {
2796 if (read_tty) {
2797 tv.tv_sec = 1;
2798 tv.tv_usec = 0;
2799 i = select(width, (void *)&readfds, (void *)&writefds,
2800 NULL, &tv);
75dd6c1a 2801 if (!i && (!has_stdin_waiting() || !read_tty))
0f113f3e 2802 continue;
0f113f3e
MC		 2803 } else
2804 i = select(width, (void *)&readfds, (void *)&writefds,
2805 NULL, timeoutp);
2806 }
06f4536a 2807#else
0f113f3e
MC		 2808 i = select(width, (void *)&readfds, (void *)&writefds,
2809 NULL, timeoutp);
2810#endif
2811 if (i < 0) {
2812 BIO_printf(bio_err, "bad select %d\n",
2813 get_last_socket_error());
2814 goto shut;
0f113f3e
MC		 2815 }
2816 }
2817
2818 if ((SSL_version(con) == DTLS1_VERSION)
2819 && DTLSv1_handle_timeout(con) > 0) {
2820 BIO_printf(bio_err, "TIMEOUT occurred\n");
2821 }
2822
2823 if (!ssl_pending && FD_ISSET(SSL_get_fd(con), &writefds)) {
2824 k = SSL_write(con, &(cbuf[cbuf_off]), (unsigned int)cbuf_len);
2825 switch (SSL_get_error(con, k)) {
2826 case SSL_ERROR_NONE:
2827 cbuf_off += k;
2828 cbuf_len -= k;
2829 if (k <= 0)
2830 goto end;
2831 /* we have done a write(con,NULL,0); */
2832 if (cbuf_len <= 0) {
2833 read_tty = 1;
2834 write_ssl = 0;
2835 } else { /* if (cbuf_len > 0) */
2836
2837 read_tty = 0;
2838 write_ssl = 1;
2839 }
2840 break;
2841 case SSL_ERROR_WANT_WRITE:
2842 BIO_printf(bio_c_out, "write W BLOCK\n");
2843 write_ssl = 1;
2844 read_tty = 0;
2845 break;
7e25dd6d
MC		 2846 case SSL_ERROR_WANT_ASYNC:
2847 BIO_printf(bio_c_out, "write A BLOCK\n");
e1b9840e 2848 wait_for_async(con);
7e25dd6d
MC		 2849 write_ssl = 1;
2850 read_tty = 0;
2851 break;
0f113f3e
MC		 2852 case SSL_ERROR_WANT_READ:
2853 BIO_printf(bio_c_out, "write R BLOCK\n");
2854 write_tty = 0;
2855 read_ssl = 1;
2856 write_ssl = 0;
2857 break;
2858 case SSL_ERROR_WANT_X509_LOOKUP:
2859 BIO_printf(bio_c_out, "write X BLOCK\n");
2860 break;
2861 case SSL_ERROR_ZERO_RETURN:
2862 if (cbuf_len != 0) {
2863 BIO_printf(bio_c_out, "shutdown\n");
2864 ret = 0;
2865 goto shut;
2866 } else {
2867 read_tty = 1;
2868 write_ssl = 0;
2869 break;
2870 }
2871
2872 case SSL_ERROR_SYSCALL:
2873 if ((k != 0) || (cbuf_len != 0)) {
2874 BIO_printf(bio_err, "write:errno=%d\n",
2875 get_last_socket_error());
2876 goto shut;
2877 } else {
2878 read_tty = 1;
2879 write_ssl = 0;
2880 }
2881 break;
fc7f190c
MC		 2882 case SSL_ERROR_WANT_ASYNC_JOB:
2883 /* This shouldn't ever happen in s_client - treat as an error */
0f113f3e
MC		 2884 case SSL_ERROR_SSL:
2885 ERR_print_errors(bio_err);
2886 goto shut;
2887 }
2888 }
c7bdb6a3 2889#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_VMS)
0f113f3e
MC		 2890 /* Assume Windows/DOS/BeOS can always write */
2891 else if (!ssl_pending && write_tty)
06f4536a 2892#else
51e5133d 2893 else if (!ssl_pending && FD_ISSET(fileno_stdout(), &writefds))
06f4536a 2894#endif
0f113f3e 2895 {
a53955d8 2896#ifdef CHARSET_EBCDIC
0f113f3e
MC		 2897 ascii2ebcdic(&(sbuf[sbuf_off]), &(sbuf[sbuf_off]), sbuf_len);
2898#endif
2899 i = raw_write_stdout(&(sbuf[sbuf_off]), sbuf_len);
2900
2901 if (i <= 0) {
2902 BIO_printf(bio_c_out, "DONE\n");
2903 ret = 0;
2904 goto shut;
0f113f3e
MC		 2905 }
2906
0fe2a0af 2907 sbuf_len -= i;
0f113f3e
MC		 2908 sbuf_off += i;
2909 if (sbuf_len <= 0) {
2910 read_ssl = 1;
2911 write_tty = 0;
2912 }
2913 } else if (ssl_pending || FD_ISSET(SSL_get_fd(con), &readfds)) {
58964a49 2914#ifdef RENEG
0f113f3e
MC		 2915 {
2916 static int iiii;
2917 if (++iiii == 52) {
2918 SSL_renegotiate(con);
2919 iiii = 0;
2920 }
2921 }
58964a49 2922#endif
0f113f3e 2923 k = SSL_read(con, sbuf, 1024 /* BUFSIZZ */ );
0f113f3e
MC		 2924
2925 switch (SSL_get_error(con, k)) {
2926 case SSL_ERROR_NONE:
2927 if (k <= 0)
2928 goto end;
2929 sbuf_off = 0;
2930 sbuf_len = k;
2931
2932 read_ssl = 0;
2933 write_tty = 1;
2934 break;
7e25dd6d
MC		 2935 case SSL_ERROR_WANT_ASYNC:
2936 BIO_printf(bio_c_out, "read A BLOCK\n");
e1b9840e 2937 wait_for_async(con);
7e25dd6d
MC		 2938 write_tty = 0;
2939 read_ssl = 1;
2940 if ((read_tty == 0) && (write_ssl == 0))
2941 write_ssl = 1;
2942 break;
0f113f3e
MC		 2943 case SSL_ERROR_WANT_WRITE:
2944 BIO_printf(bio_c_out, "read W BLOCK\n");
2945 write_ssl = 1;
2946 read_tty = 0;
2947 break;
2948 case SSL_ERROR_WANT_READ:
2949 BIO_printf(bio_c_out, "read R BLOCK\n");
2950 write_tty = 0;
2951 read_ssl = 1;
2952 if ((read_tty == 0) && (write_ssl == 0))
2953 write_ssl = 1;
2954 break;
2955 case SSL_ERROR_WANT_X509_LOOKUP:
2956 BIO_printf(bio_c_out, "read X BLOCK\n");
2957 break;
2958 case SSL_ERROR_SYSCALL:
2959 ret = get_last_socket_error();
2960 if (c_brief)
2961 BIO_puts(bio_err, "CONNECTION CLOSED BY SERVER\n");
2962 else
2963 BIO_printf(bio_err, "read:errno=%d\n", ret);
2964 goto shut;
2965 case SSL_ERROR_ZERO_RETURN:
2966 BIO_printf(bio_c_out, "closed\n");
2967 ret = 0;
2968 goto shut;
fc7f190c
MC		 2969 case SSL_ERROR_WANT_ASYNC_JOB:
2970 /* This shouldn't ever happen in s_client. Treat as an error */
0f113f3e
MC		 2971 case SSL_ERROR_SSL:
2972 ERR_print_errors(bio_err);
2973 goto shut;
0f113f3e
MC		 2974 }
2975 }
75dd6c1a
MC		 2976/* OPENSSL_SYS_MSDOS includes OPENSSL_SYS_WINDOWS */
2977#if defined(OPENSSL_SYS_MSDOS)
2978 else if (has_stdin_waiting())
06f4536a 2979#else
51e5133d 2980 else if (FD_ISSET(fileno_stdin(), &readfds))
0f113f3e
MC		 2981#endif
2982 {
2983 if (crlf) {
2984 int j, lf_num;
2985
2986 i = raw_read_stdin(cbuf, BUFSIZZ / 2);
2987 lf_num = 0;
2988 /* both loops are skipped when i <= 0 */
2989 for (j = 0; j < i; j++)
2990 if (cbuf[j] == '\n')
2991 lf_num++;
2992 for (j = i - 1; j >= 0; j--) {
2993 cbuf[j + lf_num] = cbuf[j];
2994 if (cbuf[j] == '\n') {
2995 lf_num--;
2996 i++;
2997 cbuf[j + lf_num] = '\r';
2998 }
2999 }
3000 assert(lf_num == 0);
51e5133d 3001 } else
c7bdb6a3 3002 i = raw_read_stdin(cbuf, BUFSIZZ);
d485640b 3003#if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
a3ef2c16
JD		 3004 if (i == 0)
3005 at_eof = 1;
d485640b 3006#endif
a3ef2c16 3007
6ba8a5b7 3008 if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q' && cmdletters))) {
0f113f3e
MC		 3009 BIO_printf(bio_err, "DONE\n");
3010 ret = 0;
3011 goto shut;
3012 }
3013
6ba8a5b7 3014 if ((!c_ign_eof) && (cbuf[0] == 'R' && cmdletters)) {
0f113f3e
MC		 3015 BIO_printf(bio_err, "RENEGOTIATING\n");
3016 SSL_renegotiate(con);
3017 cbuf_len = 0;
3018 }
b07b2a1b 3019
f14afcaa
MC		 3020 if (!c_ign_eof && (cbuf[0] == 'K' || cbuf[0] == 'k' )
3021 && cmdletters) {
b07b2a1b
MC		 3022 BIO_printf(bio_err, "KEYUPDATE\n");
3023 SSL_key_update(con,
3024 cbuf[0] == 'K' ? SSL_KEY_UPDATE_REQUESTED
3025 : SSL_KEY_UPDATE_NOT_REQUESTED);
3026 cbuf_len = 0;
3027 }
b612799a
RL		 3028#ifndef OPENSSL_NO_HEARTBEATS
3029 else if ((!c_ign_eof) && (cbuf[0] == 'B' && cmdletters)) {
3030 BIO_printf(bio_err, "HEARTBEATING\n");
3031 SSL_heartbeat(con);
3032 cbuf_len = 0;
3033 }
3034#endif
0f113f3e
MC		 3035 else {
3036 cbuf_len = i;
3037 cbuf_off = 0;
a53955d8 3038#ifdef CHARSET_EBCDIC
0f113f3e
MC		 3039 ebcdic2ascii(cbuf, cbuf, i);
3040#endif
3041 }
3042
3043 write_ssl = 1;
3044 read_tty = 0;
3045 }
3046 }
3047
3048 ret = 0;
3049 shut:
3050 if (in_init)
0d4d5ab8 3051 print_stuff(bio_c_out, con, full_log);
ec447924 3052 do_ssl_shutdown(con);
27da42d8 3053
26ec943e
BE		 3054 /*
3055 * If we ended with an alert being sent, but still with data in the
3056 * network buffer to be read, then calling BIO_closesocket() will
3057 * result in a TCP-RST being sent. On some platforms (notably
3058 * Windows) then this will result in the peer immediately abandoning
3059 * the connection including any buffered alert data before it has
3060 * had a chance to be read. Shutting down the sending side first,
3061 * and then closing the socket sends TCP-FIN first followed by
3062 * TCP-RST. This seems to allow the peer to read the alert data.
3063 */
3064 shutdown(SSL_get_fd(con), 1); /* SHUT_WR */
f69d050e
AP		 3065 /*
3066 * We just said we have nothing else to say, but it doesn't mean that
3067 * the other side has nothing. It's even recommended to consume incoming
3068 * data. [In testing context this ensures that alerts are passed on...]
3069 */
3070 timeout.tv_sec = 0;
3071 timeout.tv_usec = 500000; /* some extreme round-trip */
3072 do {
3073 FD_ZERO(&readfds);
3074 openssl_fdset(s, &readfds);
3075 } while (select(s + 1, &readfds, NULL, NULL, &timeout) > 0
3076 && BIO_read(sbio, sbuf, BUFSIZZ) > 0);
3077
8731a4fc 3078 BIO_closesocket(SSL_get_fd(con));
0f113f3e
MC		 3079 end:
3080 if (con != NULL) {
3081 if (prexit != 0)
0d4d5ab8 3082 print_stuff(bio_c_out, con, 1);
0f113f3e
MC		 3083 SSL_free(con);
3084 }
9561e2a1 3085 SSL_SESSION_free(psksess);
e481f9b9 3086#if !defined(OPENSSL_NO_NEXTPROTONEG)
b548a1f1 3087 OPENSSL_free(next_proto.data);
0f113f3e 3088#endif
62adbcee 3089 SSL_CTX_free(ctx);
4bf73e9f 3090 set_keylog_file(NULL, NULL);
222561fe 3091 X509_free(cert);
4b45c6e5 3092 sk_X509_CRL_pop_free(crls, X509_CRL_free);
c5ba2d99 3093 EVP_PKEY_free(key);
222561fe 3094 sk_X509_pop_free(chain, X509_free);
b548a1f1 3095 OPENSSL_free(pass);
d40a1f72
DSH		 3096#ifndef OPENSSL_NO_SRP
3097 OPENSSL_free(srp_arg.srppassin);
3098#endif
eb67172a 3099 OPENSSL_free(connectstr);
ebc01683 3100 OPENSSL_free(bindstr);
ab69ac00
RL		 3101 OPENSSL_free(host);
3102 OPENSSL_free(port);
222561fe 3103 X509_VERIFY_PARAM_free(vpm);
0f113f3e 3104 ssl_excert_free(exc);
7e1b7485 3105 sk_OPENSSL_STRING_free(ssl_args);
cddd424a 3106 sk_OPENSSL_STRING_free(dane_tlsa_rrset);
62adbcee 3107 SSL_CONF_CTX_free(cctx);
4b45c6e5
RS		 3108 OPENSSL_clear_free(cbuf, BUFSIZZ);
3109 OPENSSL_clear_free(sbuf, BUFSIZZ);
3110 OPENSSL_clear_free(mbuf, BUFSIZZ);
dd1abd44 3111 release_engine(e);
ca3a82c3
RS		 3112 BIO_free(bio_c_out);
3113 bio_c_out = NULL;
3114 BIO_free(bio_c_msg);
3115 bio_c_msg = NULL;
26a7d938 3116 return ret;
0f113f3e 3117}
d02b48c6 3118
0d4d5ab8 3119static void print_stuff(BIO *bio, SSL *s, int full)
0f113f3e
MC		 3120{
3121 X509 *peer = NULL;
0f113f3e 3122 STACK_OF(X509) *sk;
0f113f3e 3123 const SSL_CIPHER *c;
0f113f3e 3124 int i;
09b6c2ef 3125#ifndef OPENSSL_NO_COMP
0f113f3e
MC		 3126 const COMP_METHOD *comp, *expansion;
3127#endif
3128 unsigned char *exportedkeymat;
dd696a55 3129#ifndef OPENSSL_NO_CT
0d4d5ab8 3130 const SSL_CTX *ctx = SSL_get_SSL_CTX(s);
b5369582 3131#endif
0f113f3e
MC		 3132
3133 if (full) {
3134 int got_a_chain = 0;
3135
3136 sk = SSL_get_peer_cert_chain(s);
3137 if (sk != NULL) {
7e1b7485 3138 got_a_chain = 1;
0f113f3e
MC		 3139
3140 BIO_printf(bio, "---\nCertificate chain\n");
3141 for (i = 0; i < sk_X509_num(sk); i++) {
b5c4209b
DB		 3142 BIO_printf(bio, "%2d s:", i);
3143 X509_NAME_print_ex(bio, X509_get_subject_name(sk_X509_value(sk, i)), 0, get_nameopt());
3144 BIO_puts(bio, "\n");
3145 BIO_printf(bio, " i:");
3146 X509_NAME_print_ex(bio, X509_get_issuer_name(sk_X509_value(sk, i)), 0, get_nameopt());
3147 BIO_puts(bio, "\n");
0f113f3e
MC		 3148 if (c_showcerts)
3149 PEM_write_bio_X509(bio, sk_X509_value(sk, i));
3150 }
3151 }
3152
3153 BIO_printf(bio, "---\n");
3154 peer = SSL_get_peer_certificate(s);
3155 if (peer != NULL) {
3156 BIO_printf(bio, "Server certificate\n");
3157
3158 /* Redundant if we showed the whole chain */
3159 if (!(c_showcerts && got_a_chain))
3160 PEM_write_bio_X509(bio, peer);
b5c4209b 3161 dump_cert_text(bio, peer);
0f113f3e 3162 } else {
5969a2dd 3163 BIO_printf(bio, "no peer certificate available\n");
0f113f3e 3164 }
5969a2dd 3165 print_ca_names(bio, s);
0f113f3e
MC		 3166
3167 ssl_print_sigalgs(bio, s);
3168 ssl_print_tmp_key(bio, s);
3169
dd696a55 3170#ifndef OPENSSL_NO_CT
43341433
VD		 3171 /*
3172 * When the SSL session is anonymous, or resumed via an abbreviated
3173 * handshake, no SCTs are provided as part of the handshake. While in
3174 * a resumed session SCTs may be present in the session's certificate,
3175 * no callbacks are invoked to revalidate these, and in any case that
3176 * set of SCTs may be incomplete. Thus it makes little sense to
3177 * attempt to display SCTs from a resumed session's certificate, and of
3178 * course none are associated with an anonymous peer.
3179 */
3180 if (peer != NULL && !SSL_session_reused(s) && SSL_ct_is_enabled(s)) {
3181 const STACK_OF(SCT) *scts = SSL_get0_peer_scts(s);
3182 int sct_count = scts != NULL ? sk_SCT_num(scts) : 0;
3183
3184 BIO_printf(bio, "---\nSCTs present (%i)\n", sct_count);
3185 if (sct_count > 0) {
3186 const CTLOG_STORE *log_store = SSL_CTX_get0_ctlog_store(ctx);
3187
3188 BIO_printf(bio, "---\n");
3189 for (i = 0; i < sct_count; ++i) {
3190 SCT *sct = sk_SCT_value(scts, i);
3191
3192 BIO_printf(bio, "SCT validation status: %s\n",
3193 SCT_validation_status_string(sct));
3194 SCT_print(sct, bio, 0, log_store);
3195 if (i < sct_count - 1)
3196 BIO_printf(bio, "\n---\n");
3197 }
3198 BIO_printf(bio, "\n");
3199 }
6bea2a72 3200 }
dd696a55
RP		 3201#endif
3202
0f113f3e 3203 BIO_printf(bio,
7d672984
AP		 3204 "---\nSSL handshake has read %ju bytes "
3205 "and written %ju bytes\n",
12997aa9
RS		 3206 BIO_number_read(SSL_get_rbio(s)),
3207 BIO_number_written(SSL_get_wbio(s)));
0f113f3e 3208 }
c0a445a9 3209 print_verify_detail(s, bio);
b577fd0b 3210 BIO_printf(bio, (SSL_session_reused(s) ? "---\nReused, " : "---\nNew, "));
0f113f3e
MC		 3211 c = SSL_get_current_cipher(s);
3212 BIO_printf(bio, "%s, Cipher is %s\n",
3213 SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c));
3214 if (peer != NULL) {
3215 EVP_PKEY *pktmp;
bde136c8 3216
c01ff880 3217 pktmp = X509_get0_pubkey(peer);
0f113f3e
MC		 3218 BIO_printf(bio, "Server public key is %d bit\n",
3219 EVP_PKEY_bits(pktmp));
0f113f3e
MC		 3220 }
3221 BIO_printf(bio, "Secure Renegotiation IS%s supported\n",
3222 SSL_get_secure_renegotiation_support(s) ? "" : " NOT");
09b6c2ef 3223#ifndef OPENSSL_NO_COMP
0f113f3e
MC		 3224 comp = SSL_get_current_compression(s);
3225 expansion = SSL_get_current_expansion(s);
3226 BIO_printf(bio, "Compression: %s\n",
3227 comp ? SSL_COMP_get_name(comp) : "NONE");
3228 BIO_printf(bio, "Expansion: %s\n",
3229 expansion ? SSL_COMP_get_name(expansion) : "NONE");
3230#endif
3231
57559471 3232#ifdef SSL_DEBUG
0f113f3e
MC		 3233 {
3234 /* Print out local port of connection: useful for debugging */
3235 int sock;
642a166c
RL		 3236 union BIO_sock_info_u info;
3237
0f113f3e 3238 sock = SSL_get_fd(s);
642a166c
RL		 3239 if ((info.addr = BIO_ADDR_new()) != NULL
3240 && BIO_sock_info(sock, BIO_SOCK_INFO_ADDRESS, &info)) {
3241 BIO_printf(bio_c_out, "LOCAL PORT is %u\n",
1abd2925 3242 ntohs(BIO_ADDR_rawport(info.addr)));
642a166c
RL		 3243 }
3244 BIO_ADDR_free(info.addr);
0f113f3e 3245 }
a2f9200f
DSH		 3246#endif
3247
e481f9b9 3248#if !defined(OPENSSL_NO_NEXTPROTONEG)
0f113f3e
MC		 3249 if (next_proto.status != -1) {
3250 const unsigned char *proto;
3251 unsigned int proto_len;
3252 SSL_get0_next_proto_negotiated(s, &proto, &proto_len);
3253 BIO_printf(bio, "Next protocol: (%d) ", next_proto.status);
3254 BIO_write(bio, proto, proto_len);
3255 BIO_write(bio, "\n", 1);
3256 }
e481f9b9 3257#endif
0f113f3e
MC		 3258 {
3259 const unsigned char *proto;
3260 unsigned int proto_len;
3261 SSL_get0_alpn_selected(s, &proto, &proto_len);
3262 if (proto_len > 0) {
3263 BIO_printf(bio, "ALPN protocol: ");
3264 BIO_write(bio, proto, proto_len);
3265 BIO_write(bio, "\n", 1);
3266 } else
3267 BIO_printf(bio, "No ALPN negotiated\n");
3268 }
71fa4513 3269
e783bae2 3270#ifndef OPENSSL_NO_SRTP
0f113f3e
MC		 3271 {
3272 SRTP_PROTECTION_PROFILE *srtp_profile =
3273 SSL_get_selected_srtp_profile(s);
3274
3275 if (srtp_profile)
3276 BIO_printf(bio, "SRTP Extension negotiated, profile=%s\n",
3277 srtp_profile->name);
3278 }
3279#endif
3280
576eb395
MC		 3281 if (SSL_version(s) == TLS1_3_VERSION) {
3282 switch (SSL_get_early_data_status(s)) {
3283 case SSL_EARLY_DATA_NOT_SENT:
3284 BIO_printf(bio, "Early data was not sent\n");
3285 break;
3286
3287 case SSL_EARLY_DATA_REJECTED:
3288 BIO_printf(bio, "Early data was rejected\n");
3289 break;
3290
3291 case SSL_EARLY_DATA_ACCEPTED:
3292 BIO_printf(bio, "Early data was accepted\n");
3293 break;
3294
3295 }
3296 }
3297
0f113f3e 3298 SSL_SESSION_print(bio, SSL_get_session(s));
d6073e27 3299 if (SSL_get_session(s) != NULL && keymatexportlabel != NULL) {
0f113f3e
MC		 3300 BIO_printf(bio, "Keying material exporter:\n");
3301 BIO_printf(bio, " Label: '%s'\n", keymatexportlabel);
3302 BIO_printf(bio, " Length: %i bytes\n", keymatexportlen);
68dc6824
RS		 3303 exportedkeymat = app_malloc(keymatexportlen, "export key");
3304 if (!SSL_export_keying_material(s, exportedkeymat,
3305 keymatexportlen,
3306 keymatexportlabel,
3307 strlen(keymatexportlabel),
3308 NULL, 0, 0)) {
3309 BIO_printf(bio, " Error\n");
3310 } else {
3311 BIO_printf(bio, " Keying material: ");
3312 for (i = 0; i < keymatexportlen; i++)
3313 BIO_printf(bio, "%02X", exportedkeymat[i]);
3314 BIO_printf(bio, "\n");
0f113f3e 3315 }
68dc6824 3316 OPENSSL_free(exportedkeymat);
0f113f3e
MC		 3317 }
3318 BIO_printf(bio, "---\n");
222561fe 3319 X509_free(peer);
0f113f3e
MC		 3320 /* flush, or debugging output gets mixed with http response */
3321 (void)BIO_flush(bio);
3322}
d02b48c6 3323
3e41ac35 3324# ifndef OPENSSL_NO_OCSP
67c8e7f4 3325static int ocsp_resp_cb(SSL *s, void *arg)
0f113f3e
MC		 3326{
3327 const unsigned char *p;
3328 int len;
3329 OCSP_RESPONSE *rsp;
3330 len = SSL_get_tlsext_status_ocsp_resp(s, &p);
3331 BIO_puts(arg, "OCSP response: ");
2234212c 3332 if (p == NULL) {
0f113f3e
MC		 3333 BIO_puts(arg, "no response sent\n");
3334 return 1;
3335 }
3336 rsp = d2i_OCSP_RESPONSE(NULL, &p, len);
2234212c 3337 if (rsp == NULL) {
0f113f3e
MC		 3338 BIO_puts(arg, "response parse error\n");
3339 BIO_dump_indent(arg, (char *)p, len, 4);
3340 return 0;
3341 }
3342 BIO_puts(arg, "\n======================================\n");
3343 OCSP_RESPONSE_print(arg, rsp, 0);
3344 BIO_puts(arg, "======================================\n");
3345 OCSP_RESPONSE_free(rsp);
3346 return 1;
3347}
3e41ac35 3348# endif
f9e55034 3349
398b0bbd
RS		 3350static int ldap_ExtendedResponse_parse(const char *buf, long rem)
3351{
3352 const unsigned char *cur, *end;
3353 long len;
3354 int tag, xclass, inf, ret = -1;
3355
3356 cur = (const unsigned char *)buf;
3357 end = cur + rem;
3358
3359 /*
3360 * From RFC 4511:
3361 *
3362 * LDAPMessage ::= SEQUENCE {
3363 * messageID MessageID,
3364 * protocolOp CHOICE {
3365 * ...
3366 * extendedResp ExtendedResponse,
3367 * ... },
3368 * controls [0] Controls OPTIONAL }
3369 *
3370 * ExtendedResponse ::= [APPLICATION 24] SEQUENCE {
3371 * COMPONENTS OF LDAPResult,
3372 * responseName [10] LDAPOID OPTIONAL,
3373 * responseValue [11] OCTET STRING OPTIONAL }
3374 *
3375 * LDAPResult ::= SEQUENCE {
3376 * resultCode ENUMERATED {
3377 * success (0),
3378 * ...
3379 * other (80),
3380 * ... },
3381 * matchedDN LDAPDN,
3382 * diagnosticMessage LDAPString,
3383 * referral [3] Referral OPTIONAL }
3384 */
3385
3386 /* pull SEQUENCE */
3387 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3388 if (inf != V_ASN1_CONSTRUCTED || tag != V_ASN1_SEQUENCE ||
3389 (rem = end - cur, len > rem)) {
3390 BIO_printf(bio_err, "Unexpected LDAP response\n");
3391 goto end;
3392 }
3393
8b0d4242
AP		 3394 rem = len; /* ensure that we don't overstep the SEQUENCE */
3395
398b0bbd
RS		 3396 /* pull MessageID */
3397 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3398 if (inf != V_ASN1_UNIVERSAL || tag != V_ASN1_INTEGER ||
3399 (rem = end - cur, len > rem)) {
3400 BIO_printf(bio_err, "No MessageID\n");
3401 goto end;
3402 }
3403
3404 cur += len; /* shall we check for MessageId match or just skip? */
3405
3406 /* pull [APPLICATION 24] */
3407 rem = end - cur;
3408 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3409 if (inf != V_ASN1_CONSTRUCTED || xclass != V_ASN1_APPLICATION ||
3410 tag != 24) {
3411 BIO_printf(bio_err, "Not ExtendedResponse\n");
3412 goto end;
3413 }
3414
3415 /* pull resultCode */
3416 rem = end - cur;
3417 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3418 if (inf != V_ASN1_UNIVERSAL || tag != V_ASN1_ENUMERATED || len == 0 ||
3419 (rem = end - cur, len > rem)) {
3420 BIO_printf(bio_err, "Not LDAPResult\n");
3421 goto end;
3422 }
3423
3424 /* len should always be one, but just in case... */
3425 for (ret = 0, inf = 0; inf < len; inf++) {
3426 ret <<= 8;
3427 ret |= cur[inf];
3428 }
3429 /* There is more data, but we don't care... */
3430 end:
3431 return ret;
3432}
3433
d6073e27 3434#endif /* OPENSSL_NO_SOCK */
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