/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) * All rights reserved. * * This package is an SSL implementation written * by Eric Young (eay@cryptsoft.com). * The implementation was written so as to conform with Netscapes SSL. * * This library is free for commercial and non-commercial use as long as * the following conditions are aheared to. The following conditions * apply to all code found in this distribution, be it the RC4, RSA, * lhash, DES, etc., code; not just the SSL code. The SSL documentation * included with this distribution is covered by the same copyright terms * except that the holder is Tim Hudson (tjh@cryptsoft.com). * * Copyright remains Eric Young's, and as such any Copyright notices in * the code are not to be removed. * If this package is used in a product, Eric Young should be given attribution * as the author of the parts of the library used. * This can be in the form of a textual message at program startup or * in documentation (online or textual) provided with the package. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * "This product includes cryptographic software written by * Eric Young (eay@cryptsoft.com)" * The word 'cryptographic' can be left out if the rouines from the library * being used are not cryptographic related :-). * 4. If you include any Windows specific code (or a derivative thereof) from * the apps directory (application code) you must include an acknowledgement: * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" * * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * The licence and distribution terms for any publically available version or * derivative of this code cannot be changed. i.e. this code cannot simply be * copied and put under another distribution licence * [including the GNU Public Licence.] */ /* ==================================================================== * Copyright (c) 1998-2006 The OpenSSL Project. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * 3. All advertising materials mentioning features or use of this * software must display the following acknowledgment: * "This product includes software developed by the OpenSSL Project * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" * * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to * endorse or promote products derived from this software without * prior written permission. For written permission, please contact * openssl-core@openssl.org. * * 5. Products derived from this software may not be called "OpenSSL" * nor may "OpenSSL" appear in their names without prior written * permission of the OpenSSL Project. * * 6. Redistributions of any form whatsoever must retain the following * acknowledgment: * "This product includes software developed by the OpenSSL Project * for use in the OpenSSL Toolkit (http://www.openssl.org/)" * * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED * OF THE POSSIBILITY OF SUCH DAMAGE. * ==================================================================== * * This product includes cryptographic software written by Eric Young * (eay@cryptsoft.com). This product includes software written by Tim * Hudson (tjh@cryptsoft.com). * */ /* ==================================================================== * Copyright 2005 Nokia. All rights reserved. * * The portions of the attached software ("Contribution") is developed by * Nokia Corporation and is licensed pursuant to the OpenSSL open source * license. * * The Contribution, originally written by Mika Kousa and Pasi Eronen of * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites * support (see RFC 4279) to OpenSSL. * * No patent licenses or other rights except those expressly stated in * the OpenSSL open source license shall be deemed granted or received * expressly, by implication, estoppel, or otherwise. * * No assurances are provided by Nokia that the Contribution does not * infringe the patent or other intellectual property rights of any third * party or that the license provides you with all the necessary rights * to make use of the Contribution. * * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR * OTHERWISE. */ #include #include #include #include #include /* * With IPv6, it looks like Digital has mixed up the proper order of * recursive header file inclusion, resulting in the compiler complaining * that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which is * needed to have fileno() declared correctly... So let's define u_int */ #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT) # define __U_INT typedef unsigned int u_int; #endif #define USE_SOCKETS #include "apps.h" #include #include #include #include #include #include #include #ifndef OPENSSL_NO_SRP # include #endif #include "s_apps.h" #include "timeouts.h" #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000) /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */ # undef FIONBIO #endif #define SSL_HOST_NAME "localhost" #undef BUFSIZZ #define BUFSIZZ 1024*8 #define S_CLIENT_IRC_READ_TIMEOUT 8 extern int verify_depth; extern int verify_error; extern int verify_return_error; extern int verify_quiet; static int c_nbio = 0; static int c_tlsextdebug = 0; static int c_status_req = 0; static int c_Pause = 0; static int c_debug = 0; static int c_msg = 0; static int c_showcerts = 0; static char *keymatexportlabel = NULL; static int keymatexportlen = 20; static BIO *bio_c_out = NULL; static BIO *bio_c_msg = NULL; static int c_quiet = 0; static int c_ign_eof = 0; static int c_brief = 0; static void print_stuff(BIO *berr, SSL *con, int full); static int ocsp_resp_cb(SSL *s, void *arg); #ifndef OPENSSL_NO_PSK /* Default PSK identity and key */ static char *psk_identity = "Client_identity"; /* * char *psk_key=NULL; by default PSK is not used */ static unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity, unsigned int max_identity_len, unsigned char *psk, unsigned int max_psk_len) { unsigned int psk_len = 0; int ret; BIGNUM *bn = NULL; if (c_debug) BIO_printf(bio_c_out, "psk_client_cb\n"); if (!hint) { /* no ServerKeyExchange message */ if (c_debug) BIO_printf(bio_c_out, "NULL received PSK identity hint, continuing anyway\n"); } else if (c_debug) BIO_printf(bio_c_out, "Received PSK identity hint '%s'\n", hint); /* * lookup PSK identity and PSK key based on the given identity hint here */ ret = BIO_snprintf(identity, max_identity_len, "%s", psk_identity); if (ret < 0 || (unsigned int)ret > max_identity_len) goto out_err; if (c_debug) BIO_printf(bio_c_out, "created identity '%s' len=%d\n", identity, ret); ret = BN_hex2bn(&bn, psk_key); if (!ret) { BIO_printf(bio_err, "Could not convert PSK key '%s' to BIGNUM\n", psk_key); BN_free(bn); return 0; } if ((unsigned int)BN_num_bytes(bn) > max_psk_len) { BIO_printf(bio_err, "psk buffer of callback is too small (%d) for key (%d)\n", max_psk_len, BN_num_bytes(bn)); BN_free(bn); return 0; } psk_len = BN_bn2bin(bn, psk); BN_free(bn); if (psk_len == 0) goto out_err; if (c_debug) BIO_printf(bio_c_out, "created PSK len=%d\n", psk_len); return psk_len; out_err: if (c_debug) BIO_printf(bio_err, "Error in PSK client callback\n"); return 0; } #endif /* This is a context that we pass to callbacks */ typedef struct tlsextctx_st { BIO *biodebug; int ack; } tlsextctx; static int ssl_servername_cb(SSL *s, int *ad, void *arg) { tlsextctx *p = (tlsextctx *) arg; const char *hn = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name); if (SSL_get_servername_type(s) != -1) p->ack = !SSL_session_reused(s) && hn != NULL; else BIO_printf(bio_err, "Can't use SSL_get_servername\n"); return SSL_TLSEXT_ERR_OK; } #ifndef OPENSSL_NO_SRP /* This is a context that we pass to all callbacks */ typedef struct srp_arg_st { char *srppassin; char *srplogin; int msg; /* copy from c_msg */ int debug; /* copy from c_debug */ int amp; /* allow more groups */ int strength /* minimal size for N */ ; } SRP_ARG; # define SRP_NUMBER_ITERATIONS_FOR_PRIME 64 static int srp_Verify_N_and_g(const BIGNUM *N, const BIGNUM *g) { BN_CTX *bn_ctx = BN_CTX_new(); BIGNUM *p = BN_new(); BIGNUM *r = BN_new(); int ret = g != NULL && N != NULL && bn_ctx != NULL && BN_is_odd(N) && BN_is_prime_ex(N, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) && p != NULL && BN_rshift1(p, N) && /* p = (N-1)/2 */ BN_is_prime_ex(p, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) && r != NULL && /* verify g^((N-1)/2) == -1 (mod N) */ BN_mod_exp(r, g, p, N, bn_ctx) && BN_add_word(r, 1) && BN_cmp(r, N) == 0; BN_free(r); BN_free(p); BN_CTX_free(bn_ctx); return ret; } /*- * This callback is used here for two purposes: * - extended debugging * - making some primality tests for unknown groups * The callback is only called for a non default group. * * An application does not need the call back at all if * only the stanard groups are used. In real life situations, * client and server already share well known groups, * thus there is no need to verify them. * Furthermore, in case that a server actually proposes a group that * is not one of those defined in RFC 5054, it is more appropriate * to add the group to a static list and then compare since * primality tests are rather cpu consuming. */ static int ssl_srp_verify_param_cb(SSL *s, void *arg) { SRP_ARG *srp_arg = (SRP_ARG *)arg; BIGNUM *N = NULL, *g = NULL; if (((N = SSL_get_srp_N(s)) == NULL) || ((g = SSL_get_srp_g(s)) == NULL)) return 0; if (srp_arg->debug || srp_arg->msg || srp_arg->amp == 1) { BIO_printf(bio_err, "SRP parameters:\n"); BIO_printf(bio_err, "\tN="); BN_print(bio_err, N); BIO_printf(bio_err, "\n\tg="); BN_print(bio_err, g); BIO_printf(bio_err, "\n"); } if (SRP_check_known_gN_param(g, N)) return 1; if (srp_arg->amp == 1) { if (srp_arg->debug) BIO_printf(bio_err, "SRP param N and g are not known params, going to check deeper.\n"); /* * The srp_moregroups is a real debugging feature. Implementors * should rather add the value to the known ones. The minimal size * has already been tested. */ if (BN_num_bits(g) <= BN_BITS && srp_Verify_N_and_g(N, g)) return 1; } BIO_printf(bio_err, "SRP param N and g rejected.\n"); return 0; } # define PWD_STRLEN 1024 static char *ssl_give_srp_client_pwd_cb(SSL *s, void *arg) { SRP_ARG *srp_arg = (SRP_ARG *)arg; char *pass = app_malloc(PWD_STRLEN + 1, "SRP password buffer"); PW_CB_DATA cb_tmp; int l; cb_tmp.password = (char *)srp_arg->srppassin; cb_tmp.prompt_info = "SRP user"; if ((l = password_callback(pass, PWD_STRLEN, 0, &cb_tmp)) < 0) { BIO_printf(bio_err, "Can't read Password\n"); OPENSSL_free(pass); return NULL; } *(pass + l) = '\0'; return pass; } #endif static char *srtp_profiles = NULL; #ifndef OPENSSL_NO_NEXTPROTONEG /* This the context that we pass to next_proto_cb */ typedef struct tlsextnextprotoctx_st { unsigned char *data; unsigned short len; int status; } tlsextnextprotoctx; static tlsextnextprotoctx next_proto; static int next_proto_cb(SSL *s, unsigned char **out, unsigned char *outlen, const unsigned char *in, unsigned int inlen, void *arg) { tlsextnextprotoctx *ctx = arg; if (!c_quiet) { /* We can assume that |in| is syntactically valid. */ unsigned i; BIO_printf(bio_c_out, "Protocols advertised by server: "); for (i = 0; i < inlen;) { if (i) BIO_write(bio_c_out, ", ", 2); BIO_write(bio_c_out, &in[i + 1], in[i]); i += in[i] + 1; } BIO_write(bio_c_out, "\n", 1); } ctx->status = SSL_select_next_proto(out, outlen, in, inlen, ctx->data, ctx->len); return SSL_TLSEXT_ERR_OK; } #endif /* ndef OPENSSL_NO_NEXTPROTONEG */ static int serverinfo_cli_parse_cb(SSL *s, unsigned int ext_type, const unsigned char *in, size_t inlen, int *al, void *arg) { char pem_name[100]; unsigned char ext_buf[4 + 65536]; /* Reconstruct the type/len fields prior to extension data */ ext_buf[0] = ext_type >> 8; ext_buf[1] = ext_type & 0xFF; ext_buf[2] = inlen >> 8; ext_buf[3] = inlen & 0xFF; memcpy(ext_buf + 4, in, inlen); BIO_snprintf(pem_name, sizeof(pem_name), "SERVERINFO FOR EXTENSION %d", ext_type); PEM_write_bio(bio_c_out, pem_name, "", ext_buf, 4 + inlen); return 1; } typedef enum OPTION_choice { OPT_ERR = -1, OPT_EOF = 0, OPT_HELP, OPT_HOST, OPT_PORT, OPT_CONNECT, OPT_UNIX, OPT_XMPPHOST, OPT_VERIFY, OPT_CERT, OPT_CRL, OPT_CRL_DOWNLOAD, OPT_SESS_OUT, OPT_SESS_IN, OPT_CERTFORM, OPT_CRLFORM, OPT_VERIFY_RET_ERROR, OPT_VERIFY_QUIET, OPT_BRIEF, OPT_PREXIT, OPT_CRLF, OPT_QUIET, OPT_NBIO, OPT_SSL_CLIENT_ENGINE, OPT_RAND, OPT_IGN_EOF, OPT_NO_IGN_EOF, OPT_PAUSE, OPT_DEBUG, OPT_TLSEXTDEBUG, OPT_STATUS, OPT_WDEBUG, OPT_MSG, OPT_MSGFILE, OPT_ENGINE, OPT_TRACE, OPT_SECURITY_DEBUG, OPT_SECURITY_DEBUG_VERBOSE, OPT_SHOWCERTS, OPT_NBIO_TEST, OPT_STATE, OPT_PSK_IDENTITY, OPT_PSK, OPT_SRPUSER, OPT_SRPPASS, OPT_SRP_STRENGTH, OPT_SRP_LATEUSER, OPT_SRP_MOREGROUPS, OPT_SSL3, OPT_TLS1_2, OPT_TLS1_1, OPT_TLS1, OPT_DTLS, OPT_DTLS1, OPT_DTLS1_2, OPT_TIMEOUT, OPT_MTU, OPT_KEYFORM, OPT_PASS, OPT_CERT_CHAIN, OPT_CAPATH, OPT_NOCAPATH, OPT_CHAINCAPATH, OPT_VERIFYCAPATH, OPT_KEY, OPT_RECONNECT, OPT_BUILD_CHAIN, OPT_CAFILE, OPT_NOCAFILE, OPT_CHAINCAFILE, OPT_VERIFYCAFILE, OPT_NEXTPROTONEG, OPT_ALPN, OPT_SERVERINFO, OPT_STARTTLS, OPT_SERVERNAME, OPT_JPAKE, OPT_USE_SRTP, OPT_KEYMATEXPORT, OPT_KEYMATEXPORTLEN, OPT_SMTPHOST, OPT_V_ENUM, OPT_X_ENUM, OPT_S_ENUM, OPT_FALLBACKSCSV, OPT_NOCMDS, OPT_PROXY } OPTION_CHOICE; OPTIONS s_client_options[] = { {"help", OPT_HELP, '-', "Display this summary"}, {"host", OPT_HOST, 's', "Use -connect instead"}, {"port", OPT_PORT, 'p', "Use -connect instead"}, {"connect", OPT_CONNECT, 's', "TCP/IP where to connect (default is " SSL_HOST_NAME ":" PORT_STR ")"}, {"proxy", OPT_PROXY, 's', "Connect to via specified proxy to the real server"}, {"unix", OPT_UNIX, 's', "Connect over unix domain sockets"}, {"verify", OPT_VERIFY, 'p', "Turn on peer certificate verification"}, {"cert", OPT_CERT, '<', "Certificate file to use, PEM format assumed"}, {"certform", OPT_CERTFORM, 'F', "Certificate format (PEM or DER) PEM default"}, {"key", OPT_KEY, '<', "Private key file to use, if not in -cert file"}, {"keyform", OPT_KEYFORM, 'F', "Key format (PEM or DER) PEM default"}, {"pass", OPT_PASS, 's', "Private key file pass phrase source"}, {"CApath", OPT_CAPATH, '/', "PEM format directory of CA's"}, {"CAfile", OPT_CAFILE, '<', "PEM format file of CA's"}, {"no-CAfile", OPT_NOCAFILE, '-', "Do not load the default certificates file"}, {"no-CApath", OPT_NOCAPATH, '-', "Do not load certificates from the default certificates directory"}, {"reconnect", OPT_RECONNECT, '-', "Drop and re-make the connection with the same Session-ID"}, {"pause", OPT_PAUSE, '-', "Sleep after each read and write system call"}, {"showcerts", OPT_SHOWCERTS, '-', "Show all certificates in the chain"}, {"debug", OPT_DEBUG, '-', "Extra output"}, {"msg", OPT_MSG, '-', "Show protocol messages"}, {"msgfile", OPT_MSGFILE, '>'}, {"nbio_test", OPT_NBIO_TEST, '-', "More ssl protocol testing"}, {"state", OPT_STATE, '-', "Print the ssl states"}, {"crlf", OPT_CRLF, '-', "Convert LF from terminal into CRLF"}, {"quiet", OPT_QUIET, '-', "No s_client output"}, {"ign_eof", OPT_IGN_EOF, '-', "Ignore input eof (default when -quiet)"}, {"no_ign_eof", OPT_NO_IGN_EOF, '-', "Don't ignore input eof"}, {"tls1_2", OPT_TLS1_2, '-', "Just use TLSv1.2"}, {"tls1_1", OPT_TLS1_1, '-', "Just use TLSv1.1"}, {"tls1", OPT_TLS1, '-', "Just use TLSv1"}, {"starttls", OPT_STARTTLS, 's', "Use the appropriate STARTTLS command before starting TLS"}, {"xmpphost", OPT_XMPPHOST, 's', "Host to use with \"-starttls xmpp[-server]\""}, {"rand", OPT_RAND, 's', "Load the file(s) into the random number generator"}, {"sess_out", OPT_SESS_OUT, '>', "File to write SSL session to"}, {"sess_in", OPT_SESS_IN, '<', "File to read SSL session from"}, {"use_srtp", OPT_USE_SRTP, 's', "Offer SRTP key management with a colon-separated profile list"}, {"keymatexport", OPT_KEYMATEXPORT, 's', "Export keying material using label"}, {"keymatexportlen", OPT_KEYMATEXPORTLEN, 'p', "Export len bytes of keying material (default 20)"}, {"fallback_scsv", OPT_FALLBACKSCSV, '-', "Send the fallback SCSV"}, {"name", OPT_SMTPHOST, 's', "Hostname to use for \"-starttls smtp\""}, {"CRL", OPT_CRL, '<'}, {"crl_download", OPT_CRL_DOWNLOAD, '-'}, {"CRLform", OPT_CRLFORM, 'F'}, {"verify_return_error", OPT_VERIFY_RET_ERROR, '-'}, {"verify_quiet", OPT_VERIFY_QUIET, '-'}, {"brief", OPT_BRIEF, '-'}, {"prexit", OPT_PREXIT, '-'}, {"security_debug", OPT_SECURITY_DEBUG, '-'}, {"security_debug_verbose", OPT_SECURITY_DEBUG_VERBOSE, '-'}, {"cert_chain", OPT_CERT_CHAIN, '<'}, {"chainCApath", OPT_CHAINCAPATH, '/'}, {"verifyCApath", OPT_VERIFYCAPATH, '/'}, {"build_chain", OPT_BUILD_CHAIN, '-'}, {"chainCAfile", OPT_CHAINCAFILE, '<'}, {"verifyCAfile", OPT_VERIFYCAFILE, '<'}, {"nocommands", OPT_NOCMDS, '-', "Do not use interactive command letters"}, {"servername", OPT_SERVERNAME, 's', "Set TLS extension servername in ClientHello"}, {"tlsextdebug", OPT_TLSEXTDEBUG, '-', "Hex dump of all TLS extensions received"}, {"status", OPT_STATUS, '-', "Request certificate status from server"}, {"serverinfo", OPT_SERVERINFO, 's', "types Send empty ClientHello extensions (comma-separated numbers)"}, {"alpn", OPT_ALPN, 's', "Enable ALPN extension, considering named protocols supported (comma-separated list)"}, OPT_S_OPTIONS, OPT_V_OPTIONS, OPT_X_OPTIONS, #ifndef OPENSSL_NO_SSL3 {"ssl3", OPT_SSL3, '-', "Just use SSLv3"}, #endif #ifndef OPENSSL_NO_DTLS1 {"dtls", OPT_DTLS, '-'}, {"dtls1", OPT_DTLS1, '-', "Just use DTLSv1"}, {"dtls1_2", OPT_DTLS1_2, '-'}, {"timeout", OPT_TIMEOUT, '-'}, {"mtu", OPT_MTU, 'p', "Set the link layer MTU"}, #endif #ifndef OPENSSL_NO_SSL_TRACE {"trace", OPT_TRACE, '-'}, #endif #ifdef WATT32 {"wdebug", OPT_WDEBUG, '-', "WATT-32 tcp debugging"}, #endif #ifdef FIONBIO {"nbio", OPT_NBIO, '-', "Use non-blocking IO"}, #endif #ifndef OPENSSL_NO_PSK {"psk_identity", OPT_PSK_IDENTITY, 's', "PSK identity"}, {"psk", OPT_PSK, 's', "PSK in hex (without 0x)"}, # ifndef OPENSSL_NO_JPAKE {"jpake", OPT_JPAKE, 's', "JPAKE secret to use"}, # endif #endif #ifndef OPENSSL_NO_SRP {"srpuser", OPT_SRPUSER, 's', "SRP authentification for 'user'"}, {"srppass", OPT_SRPPASS, 's', "Password for 'user'"}, {"srp_lateuser", OPT_SRP_LATEUSER, '-', "SRP username into second ClientHello message"}, {"srp_moregroups", OPT_SRP_MOREGROUPS, '-', "Tolerate other than the known g N values."}, {"srp_strength", OPT_SRP_STRENGTH, 'p', "Minimal length in bits for N"}, #endif #ifndef OPENSSL_NO_NEXTPROTONEG {"nextprotoneg", OPT_NEXTPROTONEG, 's', "Enable NPN extension, considering named protocols supported (comma-separated list)"}, #endif #ifndef OPENSSL_NO_ENGINE {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"}, {"ssl_client_engine", OPT_SSL_CLIENT_ENGINE, 's'}, #endif {NULL} }; typedef enum PROTOCOL_choice { PROTO_OFF, PROTO_SMTP, PROTO_POP3, PROTO_IMAP, PROTO_FTP, PROTO_TELNET, PROTO_XMPP, PROTO_XMPP_SERVER, PROTO_CONNECT, PROTO_IRC } PROTOCOL_CHOICE; static OPT_PAIR services[] = { {"smtp", PROTO_SMTP}, {"pop3", PROTO_POP3}, {"imap", PROTO_IMAP}, {"ftp", PROTO_FTP}, {"xmpp", PROTO_XMPP}, {"xmpp-server", PROTO_XMPP_SERVER}, {"telnet", PROTO_TELNET}, {"irc", PROTO_IRC}, {NULL} }; int s_client_main(int argc, char **argv) { BIO *sbio; EVP_PKEY *key = NULL; SSL *con = NULL; SSL_CTX *ctx = NULL; STACK_OF(X509) *chain = NULL; X509 *cert = NULL; X509_VERIFY_PARAM *vpm = NULL; SSL_EXCERT *exc = NULL; SSL_CONF_CTX *cctx = NULL; STACK_OF(OPENSSL_STRING) *ssl_args = NULL; STACK_OF(X509_CRL) *crls = NULL; const SSL_METHOD *meth = TLS_client_method(); char *CApath = NULL, *CAfile = NULL, *cbuf = NULL, *sbuf = NULL; char *mbuf = NULL, *proxystr = NULL, *connectstr = NULL; char *cert_file = NULL, *key_file = NULL, *chain_file = NULL, *prog; char *chCApath = NULL, *chCAfile = NULL, *host = SSL_HOST_NAME; char *inrand = NULL; char *passarg = NULL, *pass = NULL, *vfyCApath = NULL, *vfyCAfile = NULL; char *sess_in = NULL, *sess_out = NULL, *crl_file = NULL, *p; char *jpake_secret = NULL, *xmpphost = NULL; const char *unix_path = NULL; const char *ehlo = "mail.example.com"; struct sockaddr peer; struct timeval timeout, *timeoutp; fd_set readfds, writefds; int noCApath = 0, noCAfile = 0; int build_chain = 0, cbuf_len, cbuf_off, cert_format = FORMAT_PEM; int key_format = FORMAT_PEM, crlf = 0, full_log = 1, mbuf_len = 0; int prexit = 0; int enable_timeouts = 0, sdebug = 0, peerlen = sizeof peer; int reconnect = 0, verify = SSL_VERIFY_NONE, vpmtouched = 0; int ret = 1, in_init = 1, i, nbio_test = 0, s = -1, k, width, state = 0; int sbuf_len, sbuf_off, socket_type = SOCK_STREAM, cmdletters = 1; int starttls_proto = PROTO_OFF, crl_format = FORMAT_PEM, crl_download = 0; int write_tty, read_tty, write_ssl, read_ssl, tty_on, ssl_pending; int fallback_scsv = 0; long socket_mtu = 0, randamt = 0; unsigned short port = PORT; OPTION_CHOICE o; #ifndef OPENSSL_NO_ENGINE ENGINE *ssl_client_engine = NULL; #endif ENGINE *e = NULL; #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) struct timeval tv; #endif char *servername = NULL; const char *alpn_in = NULL; tlsextctx tlsextcbp = { NULL, 0 }; #define MAX_SI_TYPES 100 unsigned short serverinfo_types[MAX_SI_TYPES]; int serverinfo_count = 0, start = 0, len; #ifndef OPENSSL_NO_NEXTPROTONEG const char *next_proto_neg_in = NULL; #endif #ifndef OPENSSL_NO_SRP char *srppass = NULL; int srp_lateuser = 0; SRP_ARG srp_arg = { NULL, NULL, 0, 0, 0, 1024 }; #endif prog = opt_progname(argv[0]); c_Pause = 0; c_quiet = 0; c_ign_eof = 0; c_debug = 0; c_msg = 0; c_showcerts = 0; c_nbio = 0; verify_depth = 0; verify_error = X509_V_OK; vpm = X509_VERIFY_PARAM_new(); cbuf = app_malloc(BUFSIZZ, "cbuf"); sbuf = app_malloc(BUFSIZZ, "sbuf"); mbuf = app_malloc(BUFSIZZ, "mbuf"); cctx = SSL_CONF_CTX_new(); if (vpm == NULL || cctx == NULL) { BIO_printf(bio_err, "%s: out of memory\n", prog); goto end; } SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CLIENT | SSL_CONF_FLAG_CMDLINE); prog = opt_init(argc, argv, s_client_options); while ((o = opt_next()) != OPT_EOF) { switch (o) { case OPT_EOF: case OPT_ERR: opthelp: BIO_printf(bio_err, "%s: Use -help for summary.\n", prog); goto end; case OPT_HELP: opt_help(s_client_options); ret = 0; goto end; case OPT_HOST: host = opt_arg(); break; case OPT_PORT: port = atoi(opt_arg()); break; case OPT_CONNECT: connectstr = opt_arg(); break; case OPT_PROXY: proxystr = opt_arg(); starttls_proto = PROTO_CONNECT; break; case OPT_UNIX: unix_path = opt_arg(); break; case OPT_XMPPHOST: xmpphost = opt_arg(); break; case OPT_SMTPHOST: ehlo = opt_arg(); break; case OPT_VERIFY: verify = SSL_VERIFY_PEER; verify_depth = atoi(opt_arg()); if (!c_quiet) BIO_printf(bio_err, "verify depth is %d\n", verify_depth); break; case OPT_CERT: cert_file = opt_arg(); break; case OPT_CRL: crl_file = opt_arg(); break; case OPT_CRL_DOWNLOAD: crl_download = 1; break; case OPT_SESS_OUT: sess_out = opt_arg(); break; case OPT_SESS_IN: sess_in = opt_arg(); break; case OPT_CERTFORM: if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &cert_format)) goto opthelp; break; case OPT_CRLFORM: if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &crl_format)) goto opthelp; break; case OPT_VERIFY_RET_ERROR: verify_return_error = 1; break; case OPT_VERIFY_QUIET: verify_quiet = 1; break; case OPT_BRIEF: c_brief = verify_quiet = c_quiet = 1; break; case OPT_S_CASES: if (ssl_args == NULL) ssl_args = sk_OPENSSL_STRING_new_null(); if (ssl_args == NULL || !sk_OPENSSL_STRING_push(ssl_args, opt_flag()) || !sk_OPENSSL_STRING_push(ssl_args, opt_arg())) { BIO_printf(bio_err, "%s: Memory allocation failure\n", prog); goto end; } break; case OPT_V_CASES: if (!opt_verify(o, vpm)) goto end; vpmtouched++; break; case OPT_X_CASES: if (!args_excert(o, &exc)) goto end; break; case OPT_PREXIT: prexit = 1; break; case OPT_CRLF: crlf = 1; break; case OPT_QUIET: c_quiet = c_ign_eof = 1; break; case OPT_NBIO: c_nbio = 1; break; case OPT_NOCMDS: cmdletters = 0; break; case OPT_ENGINE: e = setup_engine(opt_arg(), 1); break; case OPT_SSL_CLIENT_ENGINE: #ifndef OPENSSL_NO_ENGINE ssl_client_engine = ENGINE_by_id(opt_arg()); if (ssl_client_engine == NULL) { BIO_printf(bio_err, "Error getting client auth engine\n"); goto opthelp; } break; #endif break; case OPT_RAND: inrand = opt_arg(); break; case OPT_IGN_EOF: c_ign_eof = 1; break; case OPT_NO_IGN_EOF: c_ign_eof = 0; break; case OPT_PAUSE: c_Pause = 1; break; case OPT_DEBUG: c_debug = 1; break; case OPT_TLSEXTDEBUG: c_tlsextdebug = 1; break; case OPT_STATUS: c_status_req = 1; break; case OPT_WDEBUG: #ifdef WATT32 dbug_init(); #endif break; case OPT_MSG: c_msg = 1; break; case OPT_MSGFILE: bio_c_msg = BIO_new_file(opt_arg(), "w"); break; case OPT_TRACE: #ifndef OPENSSL_NO_SSL_TRACE c_msg = 2; #endif break; case OPT_SECURITY_DEBUG: sdebug = 1; break; case OPT_SECURITY_DEBUG_VERBOSE: sdebug = 2; break; case OPT_SHOWCERTS: c_showcerts = 1; break; case OPT_NBIO_TEST: nbio_test = 1; break; case OPT_STATE: state = 1; break; #ifndef OPENSSL_NO_PSK case OPT_PSK_IDENTITY: psk_identity = opt_arg(); break; case OPT_PSK: for (p = psk_key = opt_arg(); *p; p++) { if (isxdigit(*p)) continue; BIO_printf(bio_err, "Not a hex number '%s'\n", psk_key); goto end; } break; #else case OPT_PSK_IDENTITY: case OPT_PSK: break; #endif #ifndef OPENSSL_NO_SRP case OPT_SRPUSER: srp_arg.srplogin = opt_arg(); meth = TLSv1_client_method(); break; case OPT_SRPPASS: srppass = opt_arg(); meth = TLSv1_client_method(); break; case OPT_SRP_STRENGTH: srp_arg.strength = atoi(opt_arg()); BIO_printf(bio_err, "SRP minimal length for N is %d\n", srp_arg.strength); meth = TLSv1_client_method(); break; case OPT_SRP_LATEUSER: srp_lateuser = 1; meth = TLSv1_client_method(); break; case OPT_SRP_MOREGROUPS: srp_arg.amp = 1; meth = TLSv1_client_method(); break; #else case OPT_SRPUSER: case OPT_SRPPASS: case OPT_SRP_STRENGTH: case OPT_SRP_LATEUSER: case OPT_SRP_MOREGROUPS: break; #endif case OPT_SSL3: #ifndef OPENSSL_NO_SSL3 meth = SSLv3_client_method(); #endif break; case OPT_TLS1_2: meth = TLSv1_2_client_method(); break; case OPT_TLS1_1: meth = TLSv1_1_client_method(); break; case OPT_TLS1: meth = TLSv1_client_method(); break; #ifndef OPENSSL_NO_DTLS1 case OPT_DTLS: meth = DTLS_client_method(); socket_type = SOCK_DGRAM; break; case OPT_DTLS1: meth = DTLSv1_client_method(); socket_type = SOCK_DGRAM; break; case OPT_DTLS1_2: meth = DTLSv1_2_client_method(); socket_type = SOCK_DGRAM; break; case OPT_TIMEOUT: enable_timeouts = 1; break; case OPT_MTU: socket_mtu = atol(opt_arg()); break; #else case OPT_DTLS: case OPT_DTLS1: case OPT_DTLS1_2: case OPT_TIMEOUT: case OPT_MTU: break; #endif case OPT_FALLBACKSCSV: fallback_scsv = 1; break; case OPT_KEYFORM: if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &key_format)) goto opthelp; break; case OPT_PASS: passarg = opt_arg(); break; case OPT_CERT_CHAIN: chain_file = opt_arg(); break; case OPT_KEY: key_file = opt_arg(); break; case OPT_RECONNECT: reconnect = 5; break; case OPT_CAPATH: CApath = opt_arg(); break; case OPT_NOCAPATH: noCApath = 1; break; case OPT_CHAINCAPATH: chCApath = opt_arg(); break; case OPT_VERIFYCAPATH: vfyCApath = opt_arg(); break; case OPT_BUILD_CHAIN: build_chain = 1; break; case OPT_CAFILE: CAfile = opt_arg(); break; case OPT_NOCAFILE: noCAfile = 1; break; case OPT_CHAINCAFILE: chCAfile = opt_arg(); break; case OPT_VERIFYCAFILE: vfyCAfile = opt_arg(); break; case OPT_NEXTPROTONEG: next_proto_neg_in = opt_arg(); break; case OPT_ALPN: alpn_in = opt_arg(); break; case OPT_SERVERINFO: p = opt_arg(); len = strlen(p); for (start = 0, i = 0; i <= len; ++i) { if (i == len || p[i] == ',') { serverinfo_types[serverinfo_count] = atoi(p + start); if (++serverinfo_count == MAX_SI_TYPES) break; start = i + 1; } } break; case OPT_STARTTLS: if (!opt_pair(opt_arg(), services, &starttls_proto)) goto end; case OPT_SERVERNAME: servername = opt_arg(); break; case OPT_JPAKE: #ifndef OPENSSL_NO_JPAKE jpake_secret = opt_arg(); #endif break; case OPT_USE_SRTP: srtp_profiles = opt_arg(); break; case OPT_KEYMATEXPORT: keymatexportlabel = opt_arg(); break; case OPT_KEYMATEXPORTLEN: keymatexportlen = atoi(opt_arg()); break; } } argc = opt_num_rest(); argv = opt_rest(); if (proxystr) { if (connectstr == NULL) { BIO_printf(bio_err, "%s: -proxy requires use of -connect\n", prog); goto opthelp; } if (!extract_host_port(proxystr, &host, NULL, &port)) goto end; } else if (connectstr != NULL && !extract_host_port(connectstr, &host, NULL, &port)) goto end; if (unix_path && (socket_type != SOCK_STREAM)) { BIO_printf(bio_err, "Can't use unix sockets and datagrams together\n"); goto end; } #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK) if (jpake_secret) { if (psk_key) { BIO_printf(bio_err, "Can't use JPAKE and PSK together\n"); goto end; } psk_identity = "JPAKE"; } #endif #if !defined(OPENSSL_NO_NEXTPROTONEG) next_proto.status = -1; if (next_proto_neg_in) { next_proto.data = next_protos_parse(&next_proto.len, next_proto_neg_in); if (next_proto.data == NULL) { BIO_printf(bio_err, "Error parsing -nextprotoneg argument\n"); goto end; } } else next_proto.data = NULL; #endif if (!app_passwd(passarg, NULL, &pass, NULL)) { BIO_printf(bio_err, "Error getting password\n"); goto end; } if (key_file == NULL) key_file = cert_file; if (key_file) { key = load_key(key_file, key_format, 0, pass, e, "client certificate private key file"); if (key == NULL) { ERR_print_errors(bio_err); goto end; } } if (cert_file) { cert = load_cert(cert_file, cert_format, NULL, e, "client certificate file"); if (cert == NULL) { ERR_print_errors(bio_err); goto end; } } if (chain_file) { chain = load_certs(chain_file, FORMAT_PEM, NULL, e, "client certificate chain"); if (!chain) goto end; } if (crl_file) { X509_CRL *crl; crl = load_crl(crl_file, crl_format); if (crl == NULL) { BIO_puts(bio_err, "Error loading CRL\n"); ERR_print_errors(bio_err); goto end; } crls = sk_X509_CRL_new_null(); if (crls == NULL || !sk_X509_CRL_push(crls, crl)) { BIO_puts(bio_err, "Error adding CRL\n"); ERR_print_errors(bio_err); X509_CRL_free(crl); goto end; } } if (!load_excert(&exc)) goto end; if (!app_RAND_load_file(NULL, 1) && inrand == NULL && !RAND_status()) { BIO_printf(bio_err, "warning, not much extra random data, consider using the -rand option\n"); } if (inrand != NULL) { randamt = app_RAND_load_files(inrand); BIO_printf(bio_err, "%ld semi-random bytes loaded\n", randamt); } if (bio_c_out == NULL) { if (c_quiet && !c_debug) { bio_c_out = BIO_new(BIO_s_null()); if (c_msg && !bio_c_msg) bio_c_msg = dup_bio_out(FORMAT_TEXT); } else if (bio_c_out == NULL) bio_c_out = dup_bio_out(FORMAT_TEXT); } #ifndef OPENSSL_NO_SRP if (!app_passwd(srppass, NULL, &srp_arg.srppassin, NULL)) { BIO_printf(bio_err, "Error getting password\n"); goto end; } #endif ctx = SSL_CTX_new(meth); if (ctx == NULL) { ERR_print_errors(bio_err); goto end; } if (sdebug) ssl_ctx_security_debug(ctx, sdebug); if (vpmtouched && !SSL_CTX_set1_param(ctx, vpm)) { BIO_printf(bio_err, "Error setting verify params\n"); ERR_print_errors(bio_err); goto end; } if (!config_ctx(cctx, ssl_args, ctx, 1, jpake_secret == NULL)) goto end; if (!ssl_load_stores(ctx, vfyCApath, vfyCAfile, chCApath, chCAfile, crls, crl_download)) { BIO_printf(bio_err, "Error loading store locations\n"); ERR_print_errors(bio_err); goto end; } #ifndef OPENSSL_NO_ENGINE if (ssl_client_engine) { if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine)) { BIO_puts(bio_err, "Error setting client auth engine\n"); ERR_print_errors(bio_err); ENGINE_free(ssl_client_engine); goto end; } ENGINE_free(ssl_client_engine); } #endif #ifndef OPENSSL_NO_PSK if (psk_key != NULL || jpake_secret) { if (c_debug) BIO_printf(bio_c_out, "PSK key given or JPAKE in use, setting client callback\n"); SSL_CTX_set_psk_client_callback(ctx, psk_client_cb); } #endif #ifndef OPENSSL_NO_SRTP if (srtp_profiles != NULL) { /* Returns 0 on success! */ if (SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles) != 0) { BIO_printf(bio_err, "Error setting SRTP profile\n"); ERR_print_errors(bio_err); goto end; } } #endif if (exc) ssl_ctx_set_excert(ctx, exc); #if !defined(OPENSSL_NO_NEXTPROTONEG) if (next_proto.data) SSL_CTX_set_next_proto_select_cb(ctx, next_proto_cb, &next_proto); #endif if (alpn_in) { unsigned short alpn_len; unsigned char *alpn = next_protos_parse(&alpn_len, alpn_in); if (alpn == NULL) { BIO_printf(bio_err, "Error parsing -alpn argument\n"); goto end; } /* Returns 0 on success! */ if (SSL_CTX_set_alpn_protos(ctx, alpn, alpn_len) != 0) { BIO_printf(bio_err, "Error setting ALPN\n"); goto end; } OPENSSL_free(alpn); } for (i = 0; i < serverinfo_count; i++) { if (!SSL_CTX_add_client_custom_ext(ctx, serverinfo_types[i], NULL, NULL, NULL, serverinfo_cli_parse_cb, NULL)) { BIO_printf(bio_err, "Warning: Unable to add custom extension %u, skipping\n", serverinfo_types[i]); } } if (state) SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback); SSL_CTX_set_verify(ctx, verify, verify_callback); if (!ctx_set_verify_locations(ctx, CAfile, CApath, noCAfile, noCApath)) { ERR_print_errors(bio_err); goto end; } ssl_ctx_add_crls(ctx, crls, crl_download); if (!set_cert_key_stuff(ctx, cert, key, chain, build_chain)) goto end; if (servername != NULL) { tlsextcbp.biodebug = bio_err; SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb); SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp); } # ifndef OPENSSL_NO_SRP if (srp_arg.srplogin) { if (!srp_lateuser && !SSL_CTX_set_srp_username(ctx, srp_arg.srplogin)) { BIO_printf(bio_err, "Unable to set SRP username\n"); goto end; } srp_arg.msg = c_msg; srp_arg.debug = c_debug; SSL_CTX_set_srp_cb_arg(ctx, &srp_arg); SSL_CTX_set_srp_client_pwd_callback(ctx, ssl_give_srp_client_pwd_cb); SSL_CTX_set_srp_strength(ctx, srp_arg.strength); if (c_msg || c_debug || srp_arg.amp == 0) SSL_CTX_set_srp_verify_param_callback(ctx, ssl_srp_verify_param_cb); } # endif con = SSL_new(ctx); if (sess_in) { SSL_SESSION *sess; BIO *stmp = BIO_new_file(sess_in, "r"); if (!stmp) { BIO_printf(bio_err, "Can't open session file %s\n", sess_in); ERR_print_errors(bio_err); goto end; } sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL); BIO_free(stmp); if (!sess) { BIO_printf(bio_err, "Can't open session file %s\n", sess_in); ERR_print_errors(bio_err); goto end; } if (!SSL_set_session(con, sess)) { BIO_printf(bio_err, "Can't set session\n"); ERR_print_errors(bio_err); goto end; } SSL_SESSION_free(sess); } if (fallback_scsv) SSL_set_mode(con, SSL_MODE_SEND_FALLBACK_SCSV); if (servername != NULL) { if (!SSL_set_tlsext_host_name(con, servername)) { BIO_printf(bio_err, "Unable to set TLS servername extension.\n"); ERR_print_errors(bio_err); goto end; } } re_start: #ifdef NO_SYS_UN_H if (init_client(&s, host, port, socket_type) == 0) #else if ((!unix_path && (init_client(&s, host, port, socket_type) == 0)) || (unix_path && (init_client_unix(&s, unix_path) == 0))) #endif { BIO_printf(bio_err, "connect:errno=%d\n", get_last_socket_error()); SHUTDOWN(s); goto end; } BIO_printf(bio_c_out, "CONNECTED(%08X)\n", s); #ifdef FIONBIO if (c_nbio) { unsigned long l = 1; BIO_printf(bio_c_out, "turning on non blocking io\n"); if (BIO_socket_ioctl(s, FIONBIO, &l) < 0) { ERR_print_errors(bio_err); goto end; } } #endif if (c_Pause & 0x01) SSL_set_debug(con, 1); if (socket_type == SOCK_DGRAM) { sbio = BIO_new_dgram(s, BIO_NOCLOSE); if (getsockname(s, &peer, (void *)&peerlen) < 0) { BIO_printf(bio_err, "getsockname:errno=%d\n", get_last_socket_error()); SHUTDOWN(s); goto end; } (void)BIO_ctrl_set_connected(sbio, &peer); if (enable_timeouts) { timeout.tv_sec = 0; timeout.tv_usec = DGRAM_RCV_TIMEOUT; BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout); timeout.tv_sec = 0; timeout.tv_usec = DGRAM_SND_TIMEOUT; BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout); } if (socket_mtu) { if (socket_mtu < DTLS_get_link_min_mtu(con)) { BIO_printf(bio_err, "MTU too small. Must be at least %ld\n", DTLS_get_link_min_mtu(con)); BIO_free(sbio); goto shut; } SSL_set_options(con, SSL_OP_NO_QUERY_MTU); if (!DTLS_set_link_mtu(con, socket_mtu)) { BIO_printf(bio_err, "Failed to set MTU\n"); BIO_free(sbio); goto shut; } } else /* want to do MTU discovery */ BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL); } else sbio = BIO_new_socket(s, BIO_NOCLOSE); if (nbio_test) { BIO *test; test = BIO_new(BIO_f_nbio_test()); sbio = BIO_push(test, sbio); } if (c_debug) { SSL_set_debug(con, 1); BIO_set_callback(sbio, bio_dump_callback); BIO_set_callback_arg(sbio, (char *)bio_c_out); } if (c_msg) { #ifndef OPENSSL_NO_SSL_TRACE if (c_msg == 2) SSL_set_msg_callback(con, SSL_trace); else #endif SSL_set_msg_callback(con, msg_cb); SSL_set_msg_callback_arg(con, bio_c_msg ? bio_c_msg : bio_c_out); } if (c_tlsextdebug) { SSL_set_tlsext_debug_callback(con, tlsext_cb); SSL_set_tlsext_debug_arg(con, bio_c_out); } if (c_status_req) { SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp); SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb); SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out); } #ifndef OPENSSL_NO_JPAKE if (jpake_secret) jpake_client_auth(bio_c_out, sbio, jpake_secret); #endif SSL_set_bio(con, sbio, sbio); SSL_set_connect_state(con); /* ok, lets connect */ width = SSL_get_fd(con) + 1; read_tty = 1; write_tty = 0; tty_on = 0; read_ssl = 1; write_ssl = 1; cbuf_len = 0; cbuf_off = 0; sbuf_len = 0; sbuf_off = 0; switch ((PROTOCOL_CHOICE) starttls_proto) { case PROTO_OFF: break; case PROTO_SMTP: { /* * This is an ugly hack that does a lot of assumptions. We do * have to handle multi-line responses which may come in a single * packet or not. We therefore have to use BIO_gets() which does * need a buffering BIO. So during the initial chitchat we do * push a buffering BIO into the chain that is removed again * later on to not disturb the rest of the s_client operation. */ int foundit = 0; BIO *fbio = BIO_new(BIO_f_buffer()); BIO_push(fbio, sbio); /* wait for multi-line response to end from SMTP */ do { mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); } while (mbuf_len > 3 && mbuf[3] == '-'); BIO_printf(fbio, "EHLO %s\r\n", ehlo); (void)BIO_flush(fbio); /* wait for multi-line response to end EHLO SMTP response */ do { mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); if (strstr(mbuf, "STARTTLS")) foundit = 1; } while (mbuf_len > 3 && mbuf[3] == '-'); (void)BIO_flush(fbio); BIO_pop(fbio); BIO_free(fbio); if (!foundit) BIO_printf(bio_err, "didn't found starttls in server response," " try anyway...\n"); BIO_printf(sbio, "STARTTLS\r\n"); BIO_read(sbio, sbuf, BUFSIZZ); } break; case PROTO_POP3: { BIO_read(sbio, mbuf, BUFSIZZ); BIO_printf(sbio, "STLS\r\n"); mbuf_len = BIO_read(sbio, sbuf, BUFSIZZ); if (mbuf_len < 0) { BIO_printf(bio_err, "BIO_read failed\n"); goto end; } } break; case PROTO_IMAP: { int foundit = 0; BIO *fbio = BIO_new(BIO_f_buffer()); BIO_push(fbio, sbio); BIO_gets(fbio, mbuf, BUFSIZZ); /* STARTTLS command requires CAPABILITY... */ BIO_printf(fbio, ". CAPABILITY\r\n"); (void)BIO_flush(fbio); /* wait for multi-line CAPABILITY response */ do { mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); if (strstr(mbuf, "STARTTLS")) foundit = 1; } while (mbuf_len > 3 && mbuf[0] != '.'); (void)BIO_flush(fbio); BIO_pop(fbio); BIO_free(fbio); if (!foundit) BIO_printf(bio_err, "didn't found STARTTLS in server response," " try anyway...\n"); BIO_printf(sbio, ". STARTTLS\r\n"); BIO_read(sbio, sbuf, BUFSIZZ); } break; case PROTO_FTP: { BIO *fbio = BIO_new(BIO_f_buffer()); BIO_push(fbio, sbio); /* wait for multi-line response to end from FTP */ do { mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); } while (mbuf_len > 3 && mbuf[3] == '-'); (void)BIO_flush(fbio); BIO_pop(fbio); BIO_free(fbio); BIO_printf(sbio, "AUTH TLS\r\n"); BIO_read(sbio, sbuf, BUFSIZZ); } break; case PROTO_XMPP: case PROTO_XMPP_SERVER: { int seen = 0; BIO_printf(sbio, "", starttls_proto == PROTO_XMPP ? "client" : "server", xmpphost ? xmpphost : host); seen = BIO_read(sbio, mbuf, BUFSIZZ); mbuf[seen] = 0; while (!strstr (mbuf, ""); seen = BIO_read(sbio, sbuf, BUFSIZZ); sbuf[seen] = 0; if (!strstr(sbuf, " 3 && foundit == 0); (void)BIO_flush(fbio); BIO_pop(fbio); BIO_free(fbio); if (!foundit) { BIO_printf(bio_err, "%s: HTTP CONNECT failed\n", prog); goto shut; } } break; case PROTO_IRC: { int numeric; BIO *fbio = BIO_new(BIO_f_buffer()); BIO_push(fbio, sbio); BIO_printf(fbio, "STARTTLS\r\n"); (void)BIO_flush(fbio); width = SSL_get_fd(con) + 1; do { numeric = 0; FD_ZERO(&readfds); openssl_fdset(SSL_get_fd(con), &readfds); timeout.tv_sec = S_CLIENT_IRC_READ_TIMEOUT; timeout.tv_usec = 0; /* * If the IRCd doesn't respond within * S_CLIENT_IRC_READ_TIMEOUT seconds, assume * it doesn't support STARTTLS. Many IRCds * will not give _any_ sort of response to a * STARTTLS command when it's not supported. */ if (!BIO_get_buffer_num_lines(fbio) && !BIO_pending(fbio) && !BIO_pending(sbio) && select(width, (void *)&readfds, NULL, NULL, &timeout) < 1) { BIO_printf(bio_err, "Timeout waiting for response (%d seconds).\n", S_CLIENT_IRC_READ_TIMEOUT); break; } mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); if (mbuf_len < 1 || sscanf(mbuf, "%*s %d", &numeric) != 1) break; /* :example.net 451 STARTTLS :You have not registered */ /* :example.net 421 STARTTLS :Unknown command */ if ((numeric == 451 || numeric == 421) && strstr(mbuf, "STARTTLS") != NULL) { BIO_printf(bio_err, "STARTTLS not supported: %s", mbuf); break; } if (numeric == 691) { BIO_printf(bio_err, "STARTTLS negotiation failed: "); ERR_print_errors(bio_err); break; } } while (numeric != 670); (void)BIO_flush(fbio); BIO_pop(fbio); BIO_free(fbio); if (numeric != 670) { BIO_printf(bio_err, "Server does not support STARTTLS.\n"); ret = 1; goto shut; } } } for (;;) { FD_ZERO(&readfds); FD_ZERO(&writefds); if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_get_timeout(con, &timeout)) timeoutp = &timeout; else timeoutp = NULL; if (SSL_in_init(con) && !SSL_total_renegotiations(con)) { in_init = 1; tty_on = 0; } else { tty_on = 1; if (in_init) { in_init = 0; if (servername != NULL && !SSL_session_reused(con)) { BIO_printf(bio_c_out, "Server did %sacknowledge servername extension.\n", tlsextcbp.ack ? "" : "not "); } if (sess_out) { BIO *stmp = BIO_new_file(sess_out, "w"); if (stmp) { PEM_write_bio_SSL_SESSION(stmp, SSL_get_session(con)); BIO_free(stmp); } else BIO_printf(bio_err, "Error writing session file %s\n", sess_out); } if (c_brief) { BIO_puts(bio_err, "CONNECTION ESTABLISHED\n"); print_ssl_summary(con); } print_stuff(bio_c_out, con, full_log); if (full_log > 0) full_log--; if (starttls_proto) { BIO_write(bio_err, mbuf, mbuf_len); /* We don't need to know any more */ if (!reconnect) starttls_proto = PROTO_OFF; } if (reconnect) { reconnect--; BIO_printf(bio_c_out, "drop connection and then reconnect\n"); SSL_shutdown(con); SSL_set_connect_state(con); SHUTDOWN(SSL_get_fd(con)); goto re_start; } } } ssl_pending = read_ssl && SSL_pending(con); if (!ssl_pending) { #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) if (tty_on) { if (read_tty) openssl_fdset(fileno(stdin), &readfds); if (write_tty) openssl_fdset(fileno(stdout), &writefds); } if (read_ssl) openssl_fdset(SSL_get_fd(con), &readfds); if (write_ssl) openssl_fdset(SSL_get_fd(con), &writefds); #else if (!tty_on || !write_tty) { if (read_ssl) openssl_fdset(SSL_get_fd(con), &readfds); if (write_ssl) openssl_fdset(SSL_get_fd(con), &writefds); } #endif /* * Note: under VMS with SOCKETSHR the second parameter is * currently of type (int *) whereas under other systems it is * (void *) if you don't have a cast it will choke the compiler: * if you do have a cast then you can either go for (int *) or * (void *). */ #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) /* * Under Windows/DOS we make the assumption that we can always * write to the tty: therefore if we need to write to the tty we * just fall through. Otherwise we timeout the select every * second and see if there are any keypresses. Note: this is a * hack, in a proper Windows application we wouldn't do this. */ i = 0; if (!write_tty) { if (read_tty) { tv.tv_sec = 1; tv.tv_usec = 0; i = select(width, (void *)&readfds, (void *)&writefds, NULL, &tv); # if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS) if (!i && (!_kbhit() || !read_tty)) continue; # else if (!i && (!((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle (STD_INPUT_HANDLE), 0))) || !read_tty)) continue; # endif } else i = select(width, (void *)&readfds, (void *)&writefds, NULL, timeoutp); } #elif defined(OPENSSL_SYS_NETWARE) if (!write_tty) { if (read_tty) { tv.tv_sec = 1; tv.tv_usec = 0; i = select(width, (void *)&readfds, (void *)&writefds, NULL, &tv); } else i = select(width, (void *)&readfds, (void *)&writefds, NULL, timeoutp); } #else i = select(width, (void *)&readfds, (void *)&writefds, NULL, timeoutp); #endif if (i < 0) { BIO_printf(bio_err, "bad select %d\n", get_last_socket_error()); goto shut; /* goto end; */ } } if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_handle_timeout(con) > 0) { BIO_printf(bio_err, "TIMEOUT occurred\n"); } if (!ssl_pending && FD_ISSET(SSL_get_fd(con), &writefds)) { k = SSL_write(con, &(cbuf[cbuf_off]), (unsigned int)cbuf_len); switch (SSL_get_error(con, k)) { case SSL_ERROR_NONE: cbuf_off += k; cbuf_len -= k; if (k <= 0) goto end; /* we have done a write(con,NULL,0); */ if (cbuf_len <= 0) { read_tty = 1; write_ssl = 0; } else { /* if (cbuf_len > 0) */ read_tty = 0; write_ssl = 1; } break; case SSL_ERROR_WANT_WRITE: BIO_printf(bio_c_out, "write W BLOCK\n"); write_ssl = 1; read_tty = 0; break; case SSL_ERROR_WANT_READ: BIO_printf(bio_c_out, "write R BLOCK\n"); write_tty = 0; read_ssl = 1; write_ssl = 0; break; case SSL_ERROR_WANT_X509_LOOKUP: BIO_printf(bio_c_out, "write X BLOCK\n"); break; case SSL_ERROR_ZERO_RETURN: if (cbuf_len != 0) { BIO_printf(bio_c_out, "shutdown\n"); ret = 0; goto shut; } else { read_tty = 1; write_ssl = 0; break; } case SSL_ERROR_SYSCALL: if ((k != 0) || (cbuf_len != 0)) { BIO_printf(bio_err, "write:errno=%d\n", get_last_socket_error()); goto shut; } else { read_tty = 1; write_ssl = 0; } break; case SSL_ERROR_SSL: ERR_print_errors(bio_err); goto shut; } } #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) /* Assume Windows/DOS/BeOS can always write */ else if (!ssl_pending && write_tty) #else else if (!ssl_pending && FD_ISSET(fileno(stdout), &writefds)) #endif { #ifdef CHARSET_EBCDIC ascii2ebcdic(&(sbuf[sbuf_off]), &(sbuf[sbuf_off]), sbuf_len); #endif i = raw_write_stdout(&(sbuf[sbuf_off]), sbuf_len); if (i <= 0) { BIO_printf(bio_c_out, "DONE\n"); ret = 0; goto shut; /* goto end; */ } sbuf_len -= i;; sbuf_off += i; if (sbuf_len <= 0) { read_ssl = 1; write_tty = 0; } } else if (ssl_pending || FD_ISSET(SSL_get_fd(con), &readfds)) { #ifdef RENEG { static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii = 0; } } #endif k = SSL_read(con, sbuf, 1024 /* BUFSIZZ */ ); switch (SSL_get_error(con, k)) { case SSL_ERROR_NONE: if (k <= 0) goto end; sbuf_off = 0; sbuf_len = k; read_ssl = 0; write_tty = 1; break; case SSL_ERROR_WANT_WRITE: BIO_printf(bio_c_out, "read W BLOCK\n"); write_ssl = 1; read_tty = 0; break; case SSL_ERROR_WANT_READ: BIO_printf(bio_c_out, "read R BLOCK\n"); write_tty = 0; read_ssl = 1; if ((read_tty == 0) && (write_ssl == 0)) write_ssl = 1; break; case SSL_ERROR_WANT_X509_LOOKUP: BIO_printf(bio_c_out, "read X BLOCK\n"); break; case SSL_ERROR_SYSCALL: ret = get_last_socket_error(); if (c_brief) BIO_puts(bio_err, "CONNECTION CLOSED BY SERVER\n"); else BIO_printf(bio_err, "read:errno=%d\n", ret); goto shut; case SSL_ERROR_ZERO_RETURN: BIO_printf(bio_c_out, "closed\n"); ret = 0; goto shut; case SSL_ERROR_SSL: ERR_print_errors(bio_err); goto shut; /* break; */ } } #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) # if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS) else if (_kbhit()) # else else if ((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) # endif #elif defined (OPENSSL_SYS_NETWARE) else if (_kbhit()) #else else if (FD_ISSET(fileno(stdin), &readfds)) #endif { if (crlf) { int j, lf_num; i = raw_read_stdin(cbuf, BUFSIZZ / 2); lf_num = 0; /* both loops are skipped when i <= 0 */ for (j = 0; j < i; j++) if (cbuf[j] == '\n') lf_num++; for (j = i - 1; j >= 0; j--) { cbuf[j + lf_num] = cbuf[j]; if (cbuf[j] == '\n') { lf_num--; i++; cbuf[j + lf_num] = '\r'; } } assert(lf_num == 0); } else i = raw_read_stdin(cbuf, BUFSIZZ); if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q' && cmdletters))) { BIO_printf(bio_err, "DONE\n"); ret = 0; goto shut; } if ((!c_ign_eof) && (cbuf[0] == 'R' && cmdletters)) { BIO_printf(bio_err, "RENEGOTIATING\n"); SSL_renegotiate(con); cbuf_len = 0; } #ifndef OPENSSL_NO_HEARTBEATS else if ((!c_ign_eof) && (cbuf[0] == 'B' && cmdletters)) { BIO_printf(bio_err, "HEARTBEATING\n"); SSL_heartbeat(con); cbuf_len = 0; } #endif else { cbuf_len = i; cbuf_off = 0; #ifdef CHARSET_EBCDIC ebcdic2ascii(cbuf, cbuf, i); #endif } write_ssl = 1; read_tty = 0; } } ret = 0; shut: if (in_init) print_stuff(bio_c_out, con, full_log); SSL_shutdown(con); SHUTDOWN(SSL_get_fd(con)); end: if (con != NULL) { if (prexit != 0) print_stuff(bio_c_out, con, 1); SSL_free(con); } #if !defined(OPENSSL_NO_NEXTPROTONEG) OPENSSL_free(next_proto.data); #endif SSL_CTX_free(ctx); X509_free(cert); sk_X509_CRL_pop_free(crls, X509_CRL_free); EVP_PKEY_free(key); sk_X509_pop_free(chain, X509_free); OPENSSL_free(pass); #ifndef OPENSSL_NO_SRP OPENSSL_free(srp_arg.srppassin); #endif X509_VERIFY_PARAM_free(vpm); ssl_excert_free(exc); sk_OPENSSL_STRING_free(ssl_args); SSL_CONF_CTX_free(cctx); OPENSSL_clear_free(cbuf, BUFSIZZ); OPENSSL_clear_free(sbuf, BUFSIZZ); OPENSSL_clear_free(mbuf, BUFSIZZ); BIO_free(bio_c_out); bio_c_out = NULL; BIO_free(bio_c_msg); bio_c_msg = NULL; return (ret); } static void print_stuff(BIO *bio, SSL *s, int full) { X509 *peer = NULL; char buf[BUFSIZ]; STACK_OF(X509) *sk; STACK_OF(X509_NAME) *sk2; const SSL_CIPHER *c; X509_NAME *xn; int i; #ifndef OPENSSL_NO_COMP const COMP_METHOD *comp, *expansion; #endif unsigned char *exportedkeymat; if (full) { int got_a_chain = 0; sk = SSL_get_peer_cert_chain(s); if (sk != NULL) { got_a_chain = 1; BIO_printf(bio, "---\nCertificate chain\n"); for (i = 0; i < sk_X509_num(sk); i++) { X509_NAME_oneline(X509_get_subject_name(sk_X509_value(sk, i)), buf, sizeof buf); BIO_printf(bio, "%2d s:%s\n", i, buf); X509_NAME_oneline(X509_get_issuer_name(sk_X509_value(sk, i)), buf, sizeof buf); BIO_printf(bio, " i:%s\n", buf); if (c_showcerts) PEM_write_bio_X509(bio, sk_X509_value(sk, i)); } } BIO_printf(bio, "---\n"); peer = SSL_get_peer_certificate(s); if (peer != NULL) { BIO_printf(bio, "Server certificate\n"); /* Redundant if we showed the whole chain */ if (!(c_showcerts && got_a_chain)) PEM_write_bio_X509(bio, peer); X509_NAME_oneline(X509_get_subject_name(peer), buf, sizeof buf); BIO_printf(bio, "subject=%s\n", buf); X509_NAME_oneline(X509_get_issuer_name(peer), buf, sizeof buf); BIO_printf(bio, "issuer=%s\n", buf); } else BIO_printf(bio, "no peer certificate available\n"); sk2 = SSL_get_client_CA_list(s); if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0)) { BIO_printf(bio, "---\nAcceptable client certificate CA names\n"); for (i = 0; i < sk_X509_NAME_num(sk2); i++) { xn = sk_X509_NAME_value(sk2, i); X509_NAME_oneline(xn, buf, sizeof(buf)); BIO_write(bio, buf, strlen(buf)); BIO_write(bio, "\n", 1); } } else { BIO_printf(bio, "---\nNo client certificate CA names sent\n"); } ssl_print_sigalgs(bio, s); ssl_print_tmp_key(bio, s); BIO_printf(bio, "---\nSSL handshake has read %"PRIu64" bytes and written %"PRIu64" bytes\n", BIO_number_read(SSL_get_rbio(s)), BIO_number_written(SSL_get_wbio(s))); } BIO_printf(bio, (SSL_cache_hit(s) ? "---\nReused, " : "---\nNew, ")); c = SSL_get_current_cipher(s); BIO_printf(bio, "%s, Cipher is %s\n", SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c)); if (peer != NULL) { EVP_PKEY *pktmp; pktmp = X509_get_pubkey(peer); BIO_printf(bio, "Server public key is %d bit\n", EVP_PKEY_bits(pktmp)); EVP_PKEY_free(pktmp); } BIO_printf(bio, "Secure Renegotiation IS%s supported\n", SSL_get_secure_renegotiation_support(s) ? "" : " NOT"); #ifndef OPENSSL_NO_COMP comp = SSL_get_current_compression(s); expansion = SSL_get_current_expansion(s); BIO_printf(bio, "Compression: %s\n", comp ? SSL_COMP_get_name(comp) : "NONE"); BIO_printf(bio, "Expansion: %s\n", expansion ? SSL_COMP_get_name(expansion) : "NONE"); #endif #ifdef SSL_DEBUG { /* Print out local port of connection: useful for debugging */ int sock; struct sockaddr_in ladd; socklen_t ladd_size = sizeof(ladd); sock = SSL_get_fd(s); getsockname(sock, (struct sockaddr *)&ladd, &ladd_size); BIO_printf(bio_c_out, "LOCAL PORT is %u\n", ntohs(ladd.sin_port)); } #endif #if !defined(OPENSSL_NO_NEXTPROTONEG) if (next_proto.status != -1) { const unsigned char *proto; unsigned int proto_len; SSL_get0_next_proto_negotiated(s, &proto, &proto_len); BIO_printf(bio, "Next protocol: (%d) ", next_proto.status); BIO_write(bio, proto, proto_len); BIO_write(bio, "\n", 1); } #endif { const unsigned char *proto; unsigned int proto_len; SSL_get0_alpn_selected(s, &proto, &proto_len); if (proto_len > 0) { BIO_printf(bio, "ALPN protocol: "); BIO_write(bio, proto, proto_len); BIO_write(bio, "\n", 1); } else BIO_printf(bio, "No ALPN negotiated\n"); } #ifndef OPENSSL_NO_SRTP { SRTP_PROTECTION_PROFILE *srtp_profile = SSL_get_selected_srtp_profile(s); if (srtp_profile) BIO_printf(bio, "SRTP Extension negotiated, profile=%s\n", srtp_profile->name); } #endif SSL_SESSION_print(bio, SSL_get_session(s)); if (keymatexportlabel != NULL) { BIO_printf(bio, "Keying material exporter:\n"); BIO_printf(bio, " Label: '%s'\n", keymatexportlabel); BIO_printf(bio, " Length: %i bytes\n", keymatexportlen); exportedkeymat = app_malloc(keymatexportlen, "export key"); if (!SSL_export_keying_material(s, exportedkeymat, keymatexportlen, keymatexportlabel, strlen(keymatexportlabel), NULL, 0, 0)) { BIO_printf(bio, " Error\n"); } else { BIO_printf(bio, " Keying material: "); for (i = 0; i < keymatexportlen; i++) BIO_printf(bio, "%02X", exportedkeymat[i]); BIO_printf(bio, "\n"); } OPENSSL_free(exportedkeymat); } BIO_printf(bio, "---\n"); X509_free(peer); /* flush, or debugging output gets mixed with http response */ (void)BIO_flush(bio); } static int ocsp_resp_cb(SSL *s, void *arg) { const unsigned char *p; int len; OCSP_RESPONSE *rsp; len = SSL_get_tlsext_status_ocsp_resp(s, &p); BIO_puts(arg, "OCSP response: "); if (!p) { BIO_puts(arg, "no response sent\n"); return 1; } rsp = d2i_OCSP_RESPONSE(NULL, &p, len); if (!rsp) { BIO_puts(arg, "response parse error\n"); BIO_dump_indent(arg, (char *)p, len, 4); return 0; } BIO_puts(arg, "\n======================================\n"); OCSP_RESPONSE_print(arg, rsp, 0); BIO_puts(arg, "======================================\n"); OCSP_RESPONSE_free(rsp); return 1; }