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251 lines
6.5 KiB
C
251 lines
6.5 KiB
C
/**
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sslxprint.c
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Copyright (C) 1999-2000 RTFM, Inc.
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All Rights Reserved
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This package is a SSLv3/TLS protocol analyzer written by Eric Rescorla
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<ekr@rtfm.com> and licensed by RTFM, Inc.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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3. All advertising materials mentioning features or use of this software
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must display the following acknowledgement:
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This product includes software developed by Eric Rescorla for
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RTFM, Inc.
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4. Neither the name of RTFM, Inc. nor the name of Eric Rescorla may be
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used to endorse or promote products derived from this
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software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY ERIC RESCORLA AND RTFM, INC. ``AS IS'' AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY SUCH
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DAMAGE.
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$Id: sslxprint.c,v 1.3 2000/11/03 06:38:06 ekr Exp $
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ekr@rtfm.com Thu Mar 25 21:17:16 1999
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*/
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#include <json.h>
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#include "network.h"
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#include "ssl_h.h"
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#include "sslprint.h"
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#include "ssl.enums.h"
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#ifdef OPENSSL
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#include <openssl/asn1.h>
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#include <openssl/x509.h>
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#include <openssl/x509v3.h>
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#endif
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#define BUFSIZE 1024
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static int sslx__print_dn PROTO_LIST((ssl_obj * ssl, char *x));
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#ifdef OPENSSL
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static int sslx__print_serial PROTO_LIST((ssl_obj * ssl, ASN1_INTEGER *a));
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#endif
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int sslx_print_certificate(ssl_obj *ssl, Data *data, int pf) {
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#ifdef OPENSSL
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X509 *x = 0;
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ASN1_INTEGER *a;
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#endif
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UCHAR *d;
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int _status;
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struct json_object *cert_obj;
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#ifdef OPENSSL
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P_(P_ASN) {
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char buf[BUFSIZE];
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int ext;
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char *b64_cert;
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char *serial_str = NULL;
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Data data_tmp;
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struct json_object *jobj;
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jobj = ssl->cur_json_st;
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cert_obj = json_object_new_object();
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d = data->data;
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if(!(b64_cert = (char *)calloc(
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1, sizeof(char) * ((((data->len) + 3 - 1) / 3) * 4 + 1))))
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ABORT(R_NO_MEMORY);
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EVP_EncodeBlock((unsigned char *)b64_cert, d, data->len);
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json_object_object_add(cert_obj, "cert_der",
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json_object_new_string(b64_cert));
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free(b64_cert);
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if(!(x = d2i_X509(0, (const unsigned char **)&d, data->len))) {
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explain(ssl, "Bad certificate");
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ABORT(R_BAD_DATA);
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}
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X509_NAME_oneline(X509_get_subject_name(x), buf, BUFSIZE);
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explain(ssl, "Subject\n");
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INDENT_INCR;
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json_object_object_add(cert_obj, "cert_subject",
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json_object_new_string(buf));
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sslx__print_dn(ssl, buf);
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INDENT_POP;
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X509_NAME_oneline(X509_get_issuer_name(x), buf, BUFSIZE);
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explain(ssl, "Issuer\n");
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INDENT_INCR;
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json_object_object_add(cert_obj, "cert_issuer",
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json_object_new_string(buf));
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sslx__print_dn(ssl, buf);
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INDENT_POP;
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a = X509_get_serialNumber(x);
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explain(ssl, "Serial ");
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if(!(serial_str = (char *)calloc(1, sizeof(char) * (a->length * 3))))
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ABORT(R_NO_MEMORY);
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INIT_DATA(data_tmp, a->data, a->length);
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exstr(ssl, serial_str, &data_tmp);
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json_object_object_add(cert_obj, "cert_serial",
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json_object_new_string(serial_str));
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free(serial_str);
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sslx__print_serial(ssl, a);
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ext = X509_get_ext_count(x);
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if(ext > 0) {
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int i, j;
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UCHAR buf[1024];
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explain(ssl, "Extensions\n");
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INDENT_INCR;
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for(i = 0; i < ext; i++) {
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X509_EXTENSION *ex;
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ASN1_OBJECT *obj;
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ex = X509_get_ext(x, i);
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obj = X509_EXTENSION_get_object(ex);
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i2t_ASN1_OBJECT((char *)buf, sizeof(buf), obj);
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explain(ssl, "Extension: %s\n", buf);
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j = X509_EXTENSION_get_critical(ex);
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if(j) {
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INDENT;
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explain(ssl, "Critical\n");
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}
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if(SSL_print_flags & SSL_PRINT_NROFF) {
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if(ssl->process_ciphertext & ssl->direction)
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printf("\\f(CI");
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else
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printf("\\fC");
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INDENT_INCR;
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INDENT;
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if(!X509V3_EXT_print_fp(stdout, ex, 0, 0)) {
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printf("Hex value");
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}
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INDENT_POP;
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explain(ssl, "\n");
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}
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}
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INDENT_POP;
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} else {
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#endif
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P_(pf) { exdump(ssl, "certificate", data); }
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#ifdef OPENSSL
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}
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struct json_object *certs_array;
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json_object_object_get_ex(jobj, "cert_chain", &certs_array);
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json_object_array_add(certs_array, cert_obj);
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}
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#endif
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_status = 0;
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abort:
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#ifdef OPENSSL
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if(x)
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X509_free(x);
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#endif
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if(_status && cert_obj)
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json_object_put(cert_obj);
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return _status;
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}
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int sslx_print_dn(ssl_obj *ssl, Data *data, int pf) {
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UCHAR buf[BUFSIZE];
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int _status;
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UCHAR *d = data->data;
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#ifdef OPENSSL
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X509_NAME *n = 0;
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#endif
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P_(pf){
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#ifdef OPENSSL
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P_(P_ASN){if(!(n = d2i_X509_NAME(0, (const unsigned char **)&d,
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data->len))) ABORT(R_BAD_DATA);
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X509_NAME_oneline(n, (char *)buf, BUFSIZE);
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sslx__print_dn(ssl, (char *)buf);
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}
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else {
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#endif
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exdump(ssl, 0, data);
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#ifdef OPENSSL
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}
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#endif
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}
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_status = 0;
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abort :
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#ifdef OPENSSL
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if(n) X509_NAME_free(n);
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#endif
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return _status;
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}
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static int sslx__print_dn(ssl_obj *ssl, char *x) {
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char *slash;
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if(*x == '/')
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x++;
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while(x) {
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if((slash = strchr(x, '/'))) {
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*slash = 0;
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}
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explain(ssl, "%s\n", x);
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x = slash ? slash + 1 : 0;
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};
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return 0;
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}
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#ifdef OPENSSL
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static int sslx__print_serial(ssl_obj *ssl, ASN1_INTEGER *a) {
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Data d;
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if(a->length == 0)
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printf("0");
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INIT_DATA(d, a->data, a->length);
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exdump(ssl, 0, &d);
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return 0;
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}
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#endif
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