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6b167313f4
Add functions to print an attribute certificate. Several attribute value types defined by the RFC 5755 specification are multi-field values (i.e ASN1_SEQUENCE rather than an ASN1_STRING or similar format). Currently those values are printed using `ASN1_item_print`. A more user-friendly output mechanism (maybe similar to the i2r_ functions used for X509 extensions) could be added in future. Reviewed-by: Tomas Mraz <tomas@openssl.org> Reviewed-by: Neil Horman <nhorman@openssl.org> (Merged from https://github.com/openssl/openssl/pull/15857)
286 lines
8.4 KiB
C
286 lines
8.4 KiB
C
/*
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* Copyright 2021 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the Apache License 2.0 (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#include <stdio.h>
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#include "internal/cryptlib.h"
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#include <openssl/buffer.h>
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#include <openssl/bn.h>
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#include <openssl/objects.h>
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#include <openssl/x509_acert.h>
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static int print_attribute(BIO *bp, X509_ATTRIBUTE *a)
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{
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ASN1_OBJECT *aobj;
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int i, j, count;
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int ret = 0;
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aobj = X509_ATTRIBUTE_get0_object(a);
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if (BIO_printf(bp, "%12s", "") <= 0)
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goto err;
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if ((j = i2a_ASN1_OBJECT(bp, aobj)) <= 0)
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goto err;
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count = X509_ATTRIBUTE_count(a);
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if (count == 0) {
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ERR_raise(ERR_LIB_X509, X509_R_INVALID_ATTRIBUTES);
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goto err;
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}
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if (j < 25 && (BIO_printf(bp, "%*s", 25 - j, " ") <= 0))
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goto err;
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if (BIO_puts(bp, ":") <= 0)
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goto err;
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for (i = 0; i < count; i++) {
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ASN1_TYPE *at;
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int type;
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ASN1_BIT_STRING *bs;
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at = X509_ATTRIBUTE_get0_type(a, i);
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type = at->type;
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switch (type) {
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case V_ASN1_PRINTABLESTRING:
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case V_ASN1_T61STRING:
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case V_ASN1_NUMERICSTRING:
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case V_ASN1_UTF8STRING:
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case V_ASN1_IA5STRING:
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bs = at->value.asn1_string;
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if (BIO_write(bp, (char *)bs->data, bs->length) != bs->length)
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goto err;
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if (BIO_puts(bp, "\n") <= 0)
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goto err;
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break;
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case V_ASN1_SEQUENCE:
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if (BIO_puts(bp, "\n") <= 0)
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goto err;
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ASN1_parse_dump(bp, at->value.sequence->data,
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at->value.sequence->length, i, 1);
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break;
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default:
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if (BIO_printf(bp, "unable to print attribute of type 0x%X\n",
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type) < 0)
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goto err;
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break;
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}
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}
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ret = 1;
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err:
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return ret;
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}
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int X509_ACERT_print_ex(BIO *bp, X509_ACERT *x, unsigned long nmflags,
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unsigned long cflag)
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{
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int i;
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char mlch = ' ';
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if ((nmflags & XN_FLAG_SEP_MASK) == XN_FLAG_SEP_MULTILINE) {
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mlch = '\n';
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}
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if ((cflag & X509_FLAG_NO_HEADER) == 0) {
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if (BIO_printf(bp, "Attribute Certificate:\n") <= 0)
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goto err;
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if (BIO_printf(bp, "%4sData:\n", "") <= 0)
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goto err;
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}
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if ((cflag & X509_FLAG_NO_VERSION) == 0) {
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long l;
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l = X509_ACERT_get_version(x);
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if (l == X509_ACERT_VERSION_2) {
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if (BIO_printf(bp, "%8sVersion: %ld (0x%lx)\n", "", l + 1,
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(unsigned long)l) <= 0)
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goto err;
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} else {
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if (BIO_printf(bp, "%8sVersion: Unknown (%ld)\n", "", l) <= 0)
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goto err;
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}
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}
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if ((cflag & X509_FLAG_NO_SERIAL) == 0) {
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const ASN1_INTEGER *serial;
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serial = X509_ACERT_get0_serialNumber(x);
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if (BIO_printf(bp, "%8sSerial Number: ", "") <= 0)
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goto err;
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if (i2a_ASN1_INTEGER(bp, serial) <= 0)
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goto err;
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if (BIO_write(bp, "\n", 1) <= 0)
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goto err;
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}
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if ((cflag & X509_FLAG_NO_SUBJECT) == 0) {
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const GENERAL_NAMES *holderEntities;
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const OSSL_ISSUER_SERIAL *holder_bcid;
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const X509_NAME *holderIssuer = NULL;
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if (BIO_printf(bp, "%8sHolder:\n", "") <= 0)
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goto err;
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holderEntities = X509_ACERT_get0_holder_entityName(x);
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if (holderEntities != NULL) {
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for (i = 0; i < sk_GENERAL_NAME_num(holderEntities); i++) {
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GENERAL_NAME *entity;
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entity = sk_GENERAL_NAME_value(holderEntities, i);
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if (BIO_printf(bp, "%12sName:%c", "", mlch) <= 0)
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goto err;
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if (GENERAL_NAME_print(bp, entity) <= 0)
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goto err;
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if (BIO_write(bp, "\n", 1) <= 0)
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goto err;
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}
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}
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if ((holder_bcid = X509_ACERT_get0_holder_baseCertId(x)) != NULL)
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holderIssuer = OSSL_ISSUER_SERIAL_get0_issuer(holder_bcid);
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if (holderIssuer != NULL) {
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const ASN1_INTEGER *holder_serial;
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const ASN1_BIT_STRING *iuid;
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if (BIO_printf(bp, "%12sIssuer:%c", "", mlch) <= 0)
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goto err;
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if (X509_NAME_print_ex(bp, holderIssuer, 0, nmflags) <= 0)
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goto err;
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if (BIO_write(bp, "\n", 1) <= 0)
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goto err;
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if (BIO_printf(bp, "%12sSerial: ", "") <= 0)
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goto err;
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holder_serial = OSSL_ISSUER_SERIAL_get0_serial(holder_bcid);
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if (i2a_ASN1_INTEGER(bp, holder_serial) <= 0)
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goto err;
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iuid = OSSL_ISSUER_SERIAL_get0_issuerUID(holder_bcid);
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if (iuid != NULL) {
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if (BIO_printf(bp, "%12sIssuer UID: ", "") <= 0)
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goto err;
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if (X509_signature_dump(bp, iuid, 24) <= 0)
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goto err;
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}
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if (BIO_write(bp, "\n", 1) <= 0)
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goto err;
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}
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}
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if ((cflag & X509_FLAG_NO_ISSUER) == 0) {
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const X509_NAME *issuer;
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if (BIO_printf(bp, "%8sIssuer:%c", "", mlch) <= 0)
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goto err;
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issuer = X509_ACERT_get0_issuerName(x);
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if (issuer) {
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if (X509_NAME_print_ex(bp, issuer, 0, nmflags) < 0)
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goto err;
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} else {
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if (BIO_printf(bp, "Unsupported Issuer Type") <= 0)
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goto err;
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}
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if (BIO_write(bp, "\n", 1) <= 0)
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goto err;
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}
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if ((cflag & X509_FLAG_NO_VALIDITY) == 0) {
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if (BIO_printf(bp, "%8sValidity\n", "") <= 0)
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goto err;
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if (BIO_printf(bp, "%12sNot Before: ", "") <= 0)
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goto err;
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if (ASN1_GENERALIZEDTIME_print(bp, X509_ACERT_get0_notBefore(x)) == 0)
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goto err;
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if (BIO_printf(bp, "\n%12sNot After : ", "") <= 0)
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goto err;
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if (ASN1_GENERALIZEDTIME_print(bp, X509_ACERT_get0_notAfter(x)) == 0)
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goto err;
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if (BIO_write(bp, "\n", 1) <= 0)
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goto err;
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}
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if ((cflag & X509_FLAG_NO_ATTRIBUTES) == 0) {
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if (BIO_printf(bp, "%8sAttributes:\n", "") <= 0)
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goto err;
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if (X509_ACERT_get_attr_count(x) == 0) {
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if (BIO_printf(bp, "%12s(none)\n", "") <= 0)
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goto err;
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} else {
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for (i = 0; i < X509_ACERT_get_attr_count(x); i++) {
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if (print_attribute(bp, X509_ACERT_get_attr(x, i)) == 0)
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goto err;
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}
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}
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}
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if ((cflag & X509_FLAG_NO_EXTENSIONS) == 0) {
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const STACK_OF(X509_EXTENSION) *exts;
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exts = X509_ACERT_get0_extensions(x);
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if (exts != NULL) {
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if (BIO_printf(bp, "%8sExtensions:\n", "") <= 0)
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goto err;
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for (i = 0; i < sk_X509_EXTENSION_num(exts); i++) {
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ASN1_OBJECT *obj;
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X509_EXTENSION *ex;
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int critical;
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ex = sk_X509_EXTENSION_value(exts, i);
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if (BIO_printf(bp, "%12s", "") <= 0)
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goto err;
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obj = X509_EXTENSION_get_object(ex);
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if (i2a_ASN1_OBJECT(bp, obj) <= 0)
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goto err;
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critical = X509_EXTENSION_get_critical(ex);
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if (BIO_printf(bp, ": %s\n", critical ? "critical" : "") <= 0)
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goto err;
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if (X509V3_EXT_print(bp, ex, cflag, 20) <= 0) {
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if (BIO_printf(bp, "%16s", "") <= 0)
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goto err;
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if (ASN1_STRING_print(bp, X509_EXTENSION_get_data(ex)) <= 0)
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goto err;
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}
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if (BIO_write(bp, "\n", 1) <= 0)
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goto err;
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}
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}
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}
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if ((cflag & X509_FLAG_NO_SIGDUMP) == 0) {
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const X509_ALGOR *sig_alg;
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const ASN1_BIT_STRING *sig;
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X509_ACERT_get0_signature(x, &sig, &sig_alg);
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if (X509_signature_print(bp, sig_alg, sig) <= 0)
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return 0;
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}
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return 1;
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err:
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ERR_raise(ERR_LIB_X509, ERR_R_BUF_LIB);
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return 0;
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}
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int X509_ACERT_print(BIO *bp, X509_ACERT *x)
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{
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return X509_ACERT_print_ex(bp, x, XN_FLAG_COMPAT, X509_FLAG_COMPAT);
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}
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