+/*
+ * Hex decoder that tolerates optional whitespace. Returns number of bytes
+ * produced, advances inptr to end of input string.
+ */
+static ossl_ssize_t hexdecode(const char **inptr, void *result)
+{
+ unsigned char **out = (unsigned char **)result;
+ const char *in = *inptr;
+ unsigned char *ret = OPENSSL_malloc(strlen(in)/2);
+ unsigned char *cp = ret;
+ uint8_t byte;
+ int nibble = 0;
+
+ if (ret == NULL)
+ return -1;
+
+ for (byte = 0; *in; ++in) {
+ char c;
+
+ if (isspace(*in))
+ continue;
+ c = tolower(*in);
+ if ('0' <= c && c <= '9') {
+ byte |= c - '0';
+ } else if ('a' <= c && c <= 'f') {
+ byte |= c - 'a' + 10;
+ } else {
+ OPENSSL_free(ret);
+ return 0;
+ }
+ if ((nibble ^= 1) == 0) {
+ *cp++ = byte;
+ byte = 0;
+ } else {
+ byte <<= 4;
+ }
+ }
+ if (nibble != 0) {
+ OPENSSL_free(ret);
+ return 0;
+ }
+ *inptr = in;
+
+ return cp - (*out = ret);
+}
+
+/*
+ * Decode unsigned 0..255, returns 1 on success, <= 0 on failure. Advances
+ * inptr to next field skipping leading whitespace.
+ */
+static ossl_ssize_t checked_uint8(const char **inptr, void *out)
+{
+ uint8_t *result = (uint8_t *)out;
+ const char *in = *inptr;
+ char *endp;
+ long v;
+ int e;
+
+ save_errno();
+ v = strtol(in, &endp, 10);
+ e = restore_errno();
+
+ if (((v == LONG_MIN || v == LONG_MAX) && e == ERANGE) ||
+ endp == in || !isspace(*endp) ||
+ v != (*result = (uint8_t) v)) {
+ return -1;
+ }
+ for (in = endp; isspace(*in); ++in)
+ continue;
+
+ *inptr = in;
+ return 1;
+}
+
+struct tlsa_field {
+ void *var;
+ const char *name;
+ ossl_ssize_t (*parser)(const char **, void *);
+};
+
+static int tlsa_import_rr(SSL *con, const char *rrdata)
+{
+ /* Not necessary to re-init these values; the "parsers" do that. */
+ static uint8_t usage;
+ static uint8_t selector;
+ static uint8_t mtype;
+ static unsigned char *data;
+ static struct tlsa_field tlsa_fields[] = {
+ { &usage, "usage", checked_uint8 },
+ { &selector, "selector", checked_uint8 },
+ { &mtype, "mtype", checked_uint8 },
+ { &data, "data", hexdecode },
+ { NULL, }
+ };
+ struct tlsa_field *f;
+ int ret;
+ const char *cp = rrdata;
+ ossl_ssize_t len = 0;
+
+ for (f = tlsa_fields; f->var; ++f) {
+ /* Returns number of bytes produced, advances cp to next field */
+ if ((len = f->parser(&cp, f->var)) <= 0) {
+ BIO_printf(bio_err, "%s: warning: bad TLSA %s field in: %s\n",
+ prog, f->name, rrdata);
+ return 0;
+ }
+ }
+ /* The data field is last, so len is its length */
+ ret = SSL_dane_tlsa_add(con, usage, selector, mtype, data, len);
+ OPENSSL_free(data);
+
+ if (ret == 0) {
+ ERR_print_errors(bio_err);
+ BIO_printf(bio_err, "%s: warning: unusable TLSA rrdata: %s\n",
+ prog, rrdata);
+ return 0;
+ }
+ if (ret < 0) {
+ ERR_print_errors(bio_err);
+ BIO_printf(bio_err, "%s: warning: error loading TLSA rrdata: %s\n",
+ prog, rrdata);
+ return 0;
+ }
+ return ret;
+}
+
+static int tlsa_import_rrset(SSL *con, STACK_OF(OPENSSL_STRING) *rrset)
+{
+ int num = sk_OPENSSL_STRING_num(rrset);
+ int count = 0;
+ int i;
+
+ for (i = 0; i < num; ++i) {
+ char *rrdata = sk_OPENSSL_STRING_value(rrset, i);
+ if (tlsa_import_rr(con, rrdata) > 0)
+ ++count;
+ }
+ return count > 0;
+}
+
+typedef enum OPTION_choice {
+ OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
+ OPT_4, OPT_6, 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_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_SSL_CONFIG,
+ 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_ASYNC,
+ OPT_V_ENUM,
+ OPT_X_ENUM,
+ OPT_S_ENUM,
+ OPT_FALLBACKSCSV, OPT_NOCMDS, OPT_PROXY, OPT_DANE_TLSA_DOMAIN,
+ OPT_DANE_TLSA_RRDATA
+} 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 :" PORT ")"},
+ {"proxy", OPT_PROXY, 's',
+ "Connect to via specified proxy to the real server"},
+#ifdef AF_UNIX
+ {"unix", OPT_UNIX, 's', "Connect over unix domain sockets"},
+#endif
+ {"4", OPT_4, '-', "Use IPv4 only"},
+ {"6", OPT_6, '-', "Use IPv6 only"},
+ {"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"},
+ {"dane_tlsa_domain", OPT_DANE_TLSA_DOMAIN, 's', "DANE TLSA base domain"},
+ {"dane_tlsa_rrdata", OPT_DANE_TLSA_RRDATA, 's',
+ "DANE TLSA rrdata presentation form"},
+ {"reconnect", OPT_RECONNECT, '-',
+ "Drop and re-make the connection with the same Session-ID"},
+ {"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"},
+ {"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)"},
+ {"async", OPT_ASYNC, '-', "Support asynchronous operation"},
+ {"ssl_config", OPT_SSL_CONFIG, 's'},
+ OPT_S_OPTIONS,
+ OPT_V_OPTIONS,
+ OPT_X_OPTIONS,
+#ifndef OPENSSL_NO_SSL3
+ {"ssl3", OPT_SSL3, '-', "Just use SSLv3"},
+#endif
+#ifndef OPENSSL_NO_TLS1
+ {"tls1", OPT_TLS1, '-', "Just use TLSv1"},
+#endif
+#ifndef OPENSSL_NO_TLS1_1
+ {"tls1_1", OPT_TLS1_1, '-', "Just use TLSv1.1"},
+#endif
+#ifndef OPENSSL_NO_TLS1_2
+ {"tls1_2", OPT_TLS1_2, '-', "Just use TLSv1.2"},
+#endif
+#ifndef OPENSSL_NO_DTLS
+ {"dtls", OPT_DTLS, '-'},
+ {"timeout", OPT_TIMEOUT, '-'},
+ {"mtu", OPT_MTU, 'p', "Set the link layer MTU"},
+#endif
+#ifndef OPENSSL_NO_DTLS1
+ {"dtls1", OPT_DTLS1, '-', "Just use DTLSv1"},
+#endif
+#ifndef OPENSSL_NO_DTLS1_2
+ {"dtls1_2", OPT_DTLS1_2, '-'},
+#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"},