414 lines
14 KiB
C++
414 lines
14 KiB
C++
/*
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* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
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* 1999.
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*/
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/* ====================================================================
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* Copyright (c) 1999-2004 The OpenSSL Project. All rights reserved.
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*
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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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*
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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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*
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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
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
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*
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* licensing@OpenSSL.org.
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*
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*
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* This product includes cryptographic software written by Eric Young
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* (eay@cryptsoft.com). This product includes software written by Tim
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* Hudson (tjh@cryptsoft.com). */
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#include <stdarg.h>
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#include <string.h>
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#include <gtest/gtest.h>
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#include <openssl/crypto.h>
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#include <openssl/mem.h>
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#include <openssl/x509.h>
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#include <openssl/x509v3.h>
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#include "../internal.h"
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#include "internal.h"
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static const char *const names[] = {
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"a", "b", ".", "*", "@",
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".a", "a.", ".b", "b.", ".*", "*.", "*@", "@*", "a@", "@a", "b@", "..",
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"-example.com", "example-.com",
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"@@", "**", "*.com", "*com", "*.*.com", "*com", "com*", "*example.com",
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"*@example.com", "test@*.example.com", "example.com", "www.example.com",
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"test.www.example.com", "*.example.com", "*.www.example.com",
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"test.*.example.com", "www.*.com",
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".www.example.com", "*www.example.com",
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"example.net", "xn--rger-koa.example.com",
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"*.xn--rger-koa.example.com", "www.xn--rger-koa.example.com",
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"*.good--example.com", "www.good--example.com",
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"*.xn--bar.com", "xn--foo.xn--bar.com",
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"a.example.com", "b.example.com",
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"postmaster@example.com", "Postmaster@example.com",
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"postmaster@EXAMPLE.COM",
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NULL
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};
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static const char *const exceptions[] = {
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"set CN: host: [*.example.com] matches [a.example.com]",
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"set CN: host: [*.example.com] matches [b.example.com]",
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"set CN: host: [*.example.com] matches [www.example.com]",
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"set CN: host: [*.example.com] matches [xn--rger-koa.example.com]",
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"set CN: host: [*.www.example.com] matches [test.www.example.com]",
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"set CN: host: [*.www.example.com] matches [.www.example.com]",
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"set CN: host: [*www.example.com] matches [www.example.com]",
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"set CN: host: [test.www.example.com] matches [.www.example.com]",
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"set CN: host: [*.xn--rger-koa.example.com] matches [www.xn--rger-koa.example.com]",
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"set CN: host: [*.xn--bar.com] matches [xn--foo.xn--bar.com]",
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"set CN: host: [*.good--example.com] matches [www.good--example.com]",
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"set CN: host-no-wildcards: [*.www.example.com] matches [.www.example.com]",
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"set CN: host-no-wildcards: [test.www.example.com] matches [.www.example.com]",
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"set emailAddress: email: [postmaster@example.com] does not match [Postmaster@example.com]",
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"set emailAddress: email: [postmaster@EXAMPLE.COM] does not match [Postmaster@example.com]",
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"set emailAddress: email: [Postmaster@example.com] does not match [postmaster@example.com]",
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"set emailAddress: email: [Postmaster@example.com] does not match [postmaster@EXAMPLE.COM]",
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"set dnsName: host: [*.example.com] matches [www.example.com]",
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"set dnsName: host: [*.example.com] matches [a.example.com]",
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"set dnsName: host: [*.example.com] matches [b.example.com]",
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"set dnsName: host: [*.example.com] matches [xn--rger-koa.example.com]",
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"set dnsName: host: [*.www.example.com] matches [test.www.example.com]",
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"set dnsName: host-no-wildcards: [*.www.example.com] matches [.www.example.com]",
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"set dnsName: host-no-wildcards: [test.www.example.com] matches [.www.example.com]",
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"set dnsName: host: [*.www.example.com] matches [.www.example.com]",
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"set dnsName: host: [*www.example.com] matches [www.example.com]",
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"set dnsName: host: [test.www.example.com] matches [.www.example.com]",
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"set dnsName: host: [*.xn--rger-koa.example.com] matches [www.xn--rger-koa.example.com]",
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"set dnsName: host: [*.xn--bar.com] matches [xn--foo.xn--bar.com]",
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"set dnsName: host: [*.good--example.com] matches [www.good--example.com]",
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"set rfc822Name: email: [postmaster@example.com] does not match [Postmaster@example.com]",
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"set rfc822Name: email: [Postmaster@example.com] does not match [postmaster@example.com]",
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"set rfc822Name: email: [Postmaster@example.com] does not match [postmaster@EXAMPLE.COM]",
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"set rfc822Name: email: [postmaster@EXAMPLE.COM] does not match [Postmaster@example.com]",
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NULL
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};
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static int is_exception(const char *msg)
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{
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const char *const *p;
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for (p = exceptions; *p; ++p)
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if (strcmp(msg, *p) == 0)
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return 1;
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return 0;
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}
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static int set_cn(X509 *crt, ...)
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{
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int ret = 0;
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X509_NAME *n = NULL;
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va_list ap;
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va_start(ap, crt);
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n = X509_NAME_new();
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if (n == NULL)
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goto out;
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while (1) {
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int nid;
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const char *name;
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nid = va_arg(ap, int);
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if (nid == 0)
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break;
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name = va_arg(ap, const char *);
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if (!X509_NAME_add_entry_by_NID(n, nid, MBSTRING_ASC,
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(unsigned char *)name, -1, -1, 1))
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goto out;
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}
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if (!X509_set_subject_name(crt, n))
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goto out;
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ret = 1;
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out:
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X509_NAME_free(n);
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va_end(ap);
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return ret;
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}
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/*
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* int X509_add_ext(X509 *x, X509_EXTENSION *ex, int loc); X509_EXTENSION
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* *X509_EXTENSION_create_by_NID(X509_EXTENSION **ex, int nid, int crit,
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* ASN1_OCTET_STRING *data); int X509_add_ext(X509 *x, X509_EXTENSION *ex,
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* int loc);
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*/
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static int set_altname(X509 *crt, ...)
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{
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int ret = 0;
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GENERAL_NAMES *gens = NULL;
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GENERAL_NAME *gen = NULL;
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ASN1_IA5STRING *ia5 = NULL;
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va_list ap;
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va_start(ap, crt);
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gens = sk_GENERAL_NAME_new_null();
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if (gens == NULL)
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goto out;
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while (1) {
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int type;
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const char *name;
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type = va_arg(ap, int);
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if (type == 0)
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break;
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name = va_arg(ap, const char *);
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gen = GENERAL_NAME_new();
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if (gen == NULL)
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goto out;
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ia5 = ASN1_IA5STRING_new();
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if (ia5 == NULL)
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goto out;
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if (!ASN1_STRING_set(ia5, name, -1))
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goto out;
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switch (type) {
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case GEN_EMAIL:
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case GEN_DNS:
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GENERAL_NAME_set0_value(gen, type, ia5);
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ia5 = NULL;
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break;
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default:
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abort();
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}
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sk_GENERAL_NAME_push(gens, gen);
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gen = NULL;
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}
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if (!X509_add1_ext_i2d(crt, NID_subject_alt_name, gens, 0, 0))
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goto out;
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ret = 1;
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out:
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ASN1_IA5STRING_free(ia5);
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GENERAL_NAME_free(gen);
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GENERAL_NAMES_free(gens);
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va_end(ap);
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return ret;
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}
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static int set_cn1(X509 *crt, const char *name)
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{
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return set_cn(crt, NID_commonName, name, 0);
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}
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static int set_cn_and_email(X509 *crt, const char *name)
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{
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return set_cn(crt, NID_commonName, name,
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NID_pkcs9_emailAddress, "dummy@example.com", 0);
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}
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static int set_cn2(X509 *crt, const char *name)
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{
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return set_cn(crt, NID_commonName, "dummy value",
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NID_commonName, name, 0);
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}
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static int set_cn3(X509 *crt, const char *name)
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{
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return set_cn(crt, NID_commonName, name,
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NID_commonName, "dummy value", 0);
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}
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static int set_email1(X509 *crt, const char *name)
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{
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return set_cn(crt, NID_pkcs9_emailAddress, name, 0);
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}
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static int set_email2(X509 *crt, const char *name)
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{
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return set_cn(crt, NID_pkcs9_emailAddress, "dummy@example.com",
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NID_pkcs9_emailAddress, name, 0);
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}
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static int set_email3(X509 *crt, const char *name)
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{
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return set_cn(crt, NID_pkcs9_emailAddress, name,
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NID_pkcs9_emailAddress, "dummy@example.com", 0);
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}
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static int set_email_and_cn(X509 *crt, const char *name)
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{
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return set_cn(crt, NID_pkcs9_emailAddress, name,
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NID_commonName, "www.example.org", 0);
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}
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static int set_altname_dns(X509 *crt, const char *name)
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{
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return set_altname(crt, GEN_DNS, name, 0);
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}
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static int set_altname_email(X509 *crt, const char *name)
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{
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return set_altname(crt, GEN_EMAIL, name, 0);
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}
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struct set_name_fn {
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int (*fn) (X509 *, const char *);
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const char *name;
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int host;
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int email;
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};
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static const struct set_name_fn name_fns[] = {
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{set_cn1, "set CN", 1, 0},
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{set_cn2, "set CN", 1, 0},
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{set_cn3, "set CN", 1, 0},
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{set_cn_and_email, "set CN", 1, 0},
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{set_email1, "set emailAddress", 0, 1},
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{set_email2, "set emailAddress", 0, 1},
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{set_email3, "set emailAddress", 0, 1},
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{set_email_and_cn, "set emailAddress", 0, 1},
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{set_altname_dns, "set dnsName", 1, 0},
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{set_altname_email, "set rfc822Name", 0, 1},
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{NULL, NULL, 0, 0},
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};
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static X509 *make_cert(void)
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{
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X509 *ret = NULL;
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X509 *crt = NULL;
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X509_NAME *issuer = NULL;
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crt = X509_new();
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if (crt == NULL)
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goto out;
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if (!X509_set_version(crt, 3))
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goto out;
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ret = crt;
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crt = NULL;
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out:
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X509_NAME_free(issuer);
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return ret;
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}
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static int errors;
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static void check_message(const struct set_name_fn *fn, const char *op,
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const char *nameincert, int match, const char *name)
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{
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char msg[1024];
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if (match < 0)
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return;
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BIO_snprintf(msg, sizeof(msg), "%s: %s: [%s] %s [%s]",
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fn->name, op, nameincert,
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match ? "matches" : "does not match", name);
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if (is_exception(msg))
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return;
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puts(msg);
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++errors;
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}
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static void run_cert(X509 *crt, const char *nameincert,
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const struct set_name_fn *fn)
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{
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const char *const *pname = names;
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while (*pname) {
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int samename = OPENSSL_strcasecmp(nameincert, *pname) == 0;
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size_t namelen = strlen(*pname);
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char *name = (char *)malloc(namelen);
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int match, ret;
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OPENSSL_memcpy(name, *pname, namelen);
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ret = X509_check_host(crt, name, namelen, 0, NULL);
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match = -1;
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if (ret < 0) {
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fprintf(stderr, "internal error in X509_check_host\n");
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++errors;
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} else if (fn->host) {
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if (ret == 1 && !samename)
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match = 1;
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if (ret == 0 && samename)
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match = 0;
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} else if (ret == 1)
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match = 1;
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check_message(fn, "host", nameincert, match, *pname);
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ret = X509_check_host(crt, name, namelen,
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X509_CHECK_FLAG_NO_WILDCARDS, NULL);
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match = -1;
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if (ret < 0) {
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fprintf(stderr, "internal error in X509_check_host\n");
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++errors;
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} else if (fn->host) {
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if (ret == 1 && !samename)
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match = 1;
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if (ret == 0 && samename)
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match = 0;
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} else if (ret == 1)
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match = 1;
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check_message(fn, "host-no-wildcards", nameincert, match, *pname);
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ret = X509_check_email(crt, name, namelen, 0);
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match = -1;
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if (fn->email) {
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if (ret && !samename)
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match = 1;
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if (!ret && samename && strchr(nameincert, '@') != NULL)
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match = 0;
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} else if (ret)
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match = 1;
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check_message(fn, "email", nameincert, match, *pname);
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++pname;
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free(name);
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}
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}
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// TODO(davidben): Convert this test to GTest more thoroughly.
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TEST(X509V3Test, NameTest) {
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const struct set_name_fn *pfn = name_fns;
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while (pfn->name) {
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const char *const *pname = names;
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while (*pname) {
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// The common name fallback requires the name look sufficiently
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// DNS-like.
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if (strcmp(pfn->name, "set CN") == 0 &&
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!x509v3_looks_like_dns_name(
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reinterpret_cast<const unsigned char*>(*pname),
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strlen(*pname))) {
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++pname;
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continue;
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}
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bssl::UniquePtr<X509> crt(make_cert());
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ASSERT_TRUE(crt);
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ASSERT_TRUE(pfn->fn(crt.get(), *pname));
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run_cert(crt.get(), *pname, pfn);
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++pname;
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}
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++pfn;
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}
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EXPECT_EQ(0, errors);
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}
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