/* $OpenBSD: x509_cpols.c,v 1.20 2025/11/28 06:03:40 tb Exp $ */
/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
 * project 1999.
 */
/* ====================================================================
 * Copyright (c) 1999-2004 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
 *    licensing@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).
 *
 */

#include <stdio.h>
#include <string.h>

#include <openssl/asn1.h>
#include <openssl/asn1t.h>
#include <openssl/conf.h>
#include <openssl/x509v3.h>

#include "err_local.h"
#include "x509_local.h"

/* Certificate policies extension support: this one is a bit complex... */

static int i2r_certpol(X509V3_EXT_METHOD *method, STACK_OF(POLICYINFO) *pol,
    BIO *out, int indent);
static STACK_OF(POLICYINFO) *r2i_certpol(X509V3_EXT_METHOD *method,
    X509V3_CTX *ctx, char *value);
static void print_qualifiers(BIO *out, STACK_OF(POLICYQUALINFO) *quals,
    int indent);
static void print_notice(BIO *out, USERNOTICE *notice, int indent);
static POLICYINFO *policy_section(X509V3_CTX *ctx,
    STACK_OF(CONF_VALUE) *polstrs, int ia5org);
static POLICYQUALINFO *notice_section(X509V3_CTX *ctx,
    STACK_OF(CONF_VALUE) *unot, int ia5org);
static int nref_nos(STACK_OF(ASN1_INTEGER) *nnums, STACK_OF(CONF_VALUE) *nos);

static const X509V3_EXT_METHOD x509v3_ext_certificate_policies = {
        .ext_nid = NID_certificate_policies,
        .ext_flags = 0,
        .it = &CERTIFICATEPOLICIES_it,
        .ext_new = NULL,
        .ext_free = NULL,
        .d2i = NULL,
        .i2d = NULL,
        .i2s = NULL,
        .s2i = NULL,
        .i2v = NULL,
        .v2i = NULL,
        .i2r = (X509V3_EXT_I2R)i2r_certpol,
        .r2i = (X509V3_EXT_R2I)r2i_certpol,
        .usr_data = NULL,
};

const X509V3_EXT_METHOD *
x509v3_ext_method_certificate_policies(void)
{
        return &x509v3_ext_certificate_policies;
}

static const ASN1_TEMPLATE CERTIFICATEPOLICIES_item_tt = {
        .flags = ASN1_TFLG_SEQUENCE_OF,
        .tag = 0,
        .offset = 0,
        .field_name = "CERTIFICATEPOLICIES",
        .item = &POLICYINFO_it,
};

const ASN1_ITEM CERTIFICATEPOLICIES_it = {
        .itype = ASN1_ITYPE_PRIMITIVE,
        .utype = -1,
        .templates = &CERTIFICATEPOLICIES_item_tt,
        .tcount = 0,
        .funcs = NULL,
        .size = 0,
        .sname = "CERTIFICATEPOLICIES",
};
LCRYPTO_ALIAS(CERTIFICATEPOLICIES_it);


CERTIFICATEPOLICIES *
d2i_CERTIFICATEPOLICIES(CERTIFICATEPOLICIES **a, const unsigned char **in, long len)
{
        return (CERTIFICATEPOLICIES *)ASN1_item_d2i((ASN1_VALUE **)a, in, len,
            &CERTIFICATEPOLICIES_it);
}
LCRYPTO_ALIAS(d2i_CERTIFICATEPOLICIES);

int
i2d_CERTIFICATEPOLICIES(CERTIFICATEPOLICIES *a, unsigned char **out)
{
        return ASN1_item_i2d((ASN1_VALUE *)a, out, &CERTIFICATEPOLICIES_it);
}
LCRYPTO_ALIAS(i2d_CERTIFICATEPOLICIES);

CERTIFICATEPOLICIES *
CERTIFICATEPOLICIES_new(void)
{
        return (CERTIFICATEPOLICIES *)ASN1_item_new(&CERTIFICATEPOLICIES_it);
}
LCRYPTO_ALIAS(CERTIFICATEPOLICIES_new);

void
CERTIFICATEPOLICIES_free(CERTIFICATEPOLICIES *a)
{
        ASN1_item_free((ASN1_VALUE *)a, &CERTIFICATEPOLICIES_it);
}
LCRYPTO_ALIAS(CERTIFICATEPOLICIES_free);

static const ASN1_TEMPLATE POLICYINFO_seq_tt[] = {
        {
                .flags = 0,
                .tag = 0,
                .offset = offsetof(POLICYINFO, policyid),
                .field_name = "policyid",
                .item = &ASN1_OBJECT_it,
        },
        {
                .flags = ASN1_TFLG_SEQUENCE_OF | ASN1_TFLG_OPTIONAL,
                .tag = 0,
                .offset = offsetof(POLICYINFO, qualifiers),
                .field_name = "qualifiers",
                .item = &POLICYQUALINFO_it,
        },
};

const ASN1_ITEM POLICYINFO_it = {
        .itype = ASN1_ITYPE_SEQUENCE,
        .utype = V_ASN1_SEQUENCE,
        .templates = POLICYINFO_seq_tt,
        .tcount = sizeof(POLICYINFO_seq_tt) / sizeof(ASN1_TEMPLATE),
        .funcs = NULL,
        .size = sizeof(POLICYINFO),
        .sname = "POLICYINFO",
};
LCRYPTO_ALIAS(POLICYINFO_it);


POLICYINFO *
d2i_POLICYINFO(POLICYINFO **a, const unsigned char **in, long len)
{
        return (POLICYINFO *)ASN1_item_d2i((ASN1_VALUE **)a, in, len,
            &POLICYINFO_it);
}
LCRYPTO_ALIAS(d2i_POLICYINFO);

int
i2d_POLICYINFO(POLICYINFO *a, unsigned char **out)
{
        return ASN1_item_i2d((ASN1_VALUE *)a, out, &POLICYINFO_it);
}
LCRYPTO_ALIAS(i2d_POLICYINFO);

POLICYINFO *
POLICYINFO_new(void)
{
        return (POLICYINFO *)ASN1_item_new(&POLICYINFO_it);
}
LCRYPTO_ALIAS(POLICYINFO_new);

void
POLICYINFO_free(POLICYINFO *a)
{
        ASN1_item_free((ASN1_VALUE *)a, &POLICYINFO_it);
}
LCRYPTO_ALIAS(POLICYINFO_free);

static const ASN1_TEMPLATE policydefault_tt = {
        .flags = 0,
        .tag = 0,
        .offset = offsetof(POLICYQUALINFO, d.other),
        .field_name = "d.other",
        .item = &ASN1_ANY_it,
};

static const ASN1_ADB_TABLE POLICYQUALINFO_adbtbl[] = {
        {
                .value = NID_id_qt_cps,
                .tt = {
                        .flags = 0,
                        .tag = 0,
                        .offset = offsetof(POLICYQUALINFO, d.cpsuri),
                        .field_name = "d.cpsuri",
                        .item = &ASN1_IA5STRING_it,
                },
        },
        {
                .value = NID_id_qt_unotice,
                .tt = {
                        .flags = 0,
                        .tag = 0,
                        .offset = offsetof(POLICYQUALINFO, d.usernotice),
                        .field_name = "d.usernotice",
                        .item = &USERNOTICE_it,
                },
        },
};

static const ASN1_ADB POLICYQUALINFO_adb = {
        .flags = 0,
        .offset = offsetof(POLICYQUALINFO, pqualid),
        .tbl = POLICYQUALINFO_adbtbl,
        .tblcount = sizeof(POLICYQUALINFO_adbtbl) / sizeof(ASN1_ADB_TABLE),
        .default_tt = &policydefault_tt,
        .null_tt = NULL,
};

static const ASN1_TEMPLATE POLICYQUALINFO_seq_tt[] = {
        {
                .flags = 0,
                .tag = 0,
                .offset = offsetof(POLICYQUALINFO, pqualid),
                .field_name = "pqualid",
                .item = &ASN1_OBJECT_it,
        },
        {
                .flags = ASN1_TFLG_ADB_OID,
                .tag = -1,
                .offset = 0,
                .field_name = "POLICYQUALINFO",
                .item = (const ASN1_ITEM *)&POLICYQUALINFO_adb,
        },
};

const ASN1_ITEM POLICYQUALINFO_it = {
        .itype = ASN1_ITYPE_SEQUENCE,
        .utype = V_ASN1_SEQUENCE,
        .templates = POLICYQUALINFO_seq_tt,
        .tcount = sizeof(POLICYQUALINFO_seq_tt) / sizeof(ASN1_TEMPLATE),
        .funcs = NULL,
        .size = sizeof(POLICYQUALINFO),
        .sname = "POLICYQUALINFO",
};
LCRYPTO_ALIAS(POLICYQUALINFO_it);


POLICYQUALINFO *
d2i_POLICYQUALINFO(POLICYQUALINFO **a, const unsigned char **in, long len)
{
        return (POLICYQUALINFO *)ASN1_item_d2i((ASN1_VALUE **)a, in, len,
            &POLICYQUALINFO_it);
}
LCRYPTO_ALIAS(d2i_POLICYQUALINFO);

int
i2d_POLICYQUALINFO(POLICYQUALINFO *a, unsigned char **out)
{
        return ASN1_item_i2d((ASN1_VALUE *)a, out, &POLICYQUALINFO_it);
}
LCRYPTO_ALIAS(i2d_POLICYQUALINFO);

POLICYQUALINFO *
POLICYQUALINFO_new(void)
{
        return (POLICYQUALINFO *)ASN1_item_new(&POLICYQUALINFO_it);
}
LCRYPTO_ALIAS(POLICYQUALINFO_new);

void
POLICYQUALINFO_free(POLICYQUALINFO *a)
{
        ASN1_item_free((ASN1_VALUE *)a, &POLICYQUALINFO_it);
}
LCRYPTO_ALIAS(POLICYQUALINFO_free);

static const ASN1_TEMPLATE USERNOTICE_seq_tt[] = {
        {
                .flags = ASN1_TFLG_OPTIONAL,
                .tag = 0,
                .offset = offsetof(USERNOTICE, noticeref),
                .field_name = "noticeref",
                .item = &NOTICEREF_it,
        },
        {
                .flags = ASN1_TFLG_OPTIONAL,
                .tag = 0,
                .offset = offsetof(USERNOTICE, exptext),
                .field_name = "exptext",
                .item = &DISPLAYTEXT_it,
        },
};

const ASN1_ITEM USERNOTICE_it = {
        .itype = ASN1_ITYPE_SEQUENCE,
        .utype = V_ASN1_SEQUENCE,
        .templates = USERNOTICE_seq_tt,
        .tcount = sizeof(USERNOTICE_seq_tt) / sizeof(ASN1_TEMPLATE),
        .funcs = NULL,
        .size = sizeof(USERNOTICE),
        .sname = "USERNOTICE",
};
LCRYPTO_ALIAS(USERNOTICE_it);


USERNOTICE *
d2i_USERNOTICE(USERNOTICE **a, const unsigned char **in, long len)
{
        return (USERNOTICE *)ASN1_item_d2i((ASN1_VALUE **)a, in, len,
            &USERNOTICE_it);
}
LCRYPTO_ALIAS(d2i_USERNOTICE);

int
i2d_USERNOTICE(USERNOTICE *a, unsigned char **out)
{
        return ASN1_item_i2d((ASN1_VALUE *)a, out, &USERNOTICE_it);
}
LCRYPTO_ALIAS(i2d_USERNOTICE);

USERNOTICE *
USERNOTICE_new(void)
{
        return (USERNOTICE *)ASN1_item_new(&USERNOTICE_it);
}
LCRYPTO_ALIAS(USERNOTICE_new);

void
USERNOTICE_free(USERNOTICE *a)
{
        ASN1_item_free((ASN1_VALUE *)a, &USERNOTICE_it);
}
LCRYPTO_ALIAS(USERNOTICE_free);

static const ASN1_TEMPLATE NOTICEREF_seq_tt[] = {
        {
                .flags = 0,
                .tag = 0,
                .offset = offsetof(NOTICEREF, organization),
                .field_name = "organization",
                .item = &DISPLAYTEXT_it,
        },
        {
                .flags = ASN1_TFLG_SEQUENCE_OF,
                .tag = 0,
                .offset = offsetof(NOTICEREF, noticenos),
                .field_name = "noticenos",
                .item = &ASN1_INTEGER_it,
        },
};

const ASN1_ITEM NOTICEREF_it = {
        .itype = ASN1_ITYPE_SEQUENCE,
        .utype = V_ASN1_SEQUENCE,
        .templates = NOTICEREF_seq_tt,
        .tcount = sizeof(NOTICEREF_seq_tt) / sizeof(ASN1_TEMPLATE),
        .funcs = NULL,
        .size = sizeof(NOTICEREF),
        .sname = "NOTICEREF",
};
LCRYPTO_ALIAS(NOTICEREF_it);


NOTICEREF *
d2i_NOTICEREF(NOTICEREF **a, const unsigned char **in, long len)
{
        return (NOTICEREF *)ASN1_item_d2i((ASN1_VALUE **)a, in, len,
            &NOTICEREF_it);
}
LCRYPTO_ALIAS(d2i_NOTICEREF);

int
i2d_NOTICEREF(NOTICEREF *a, unsigned char **out)
{
        return ASN1_item_i2d((ASN1_VALUE *)a, out, &NOTICEREF_it);
}
LCRYPTO_ALIAS(i2d_NOTICEREF);

NOTICEREF *
NOTICEREF_new(void)
{
        return (NOTICEREF *)ASN1_item_new(&NOTICEREF_it);
}
LCRYPTO_ALIAS(NOTICEREF_new);

void
NOTICEREF_free(NOTICEREF *a)
{
        ASN1_item_free((ASN1_VALUE *)a, &NOTICEREF_it);
}
LCRYPTO_ALIAS(NOTICEREF_free);

static STACK_OF(POLICYINFO) *
r2i_certpol(X509V3_EXT_METHOD *method, X509V3_CTX *ctx, char *value)
{
        STACK_OF(POLICYINFO) *pols = NULL;
        char *pstr;
        POLICYINFO *pol;
        ASN1_OBJECT *pobj;
        STACK_OF(CONF_VALUE) *vals;
        CONF_VALUE *cnf;
        int i, ia5org;

        pols = sk_POLICYINFO_new_null();
        if (pols == NULL) {
                X509V3error(ERR_R_MALLOC_FAILURE);
                return NULL;
        }
        vals = X509V3_parse_list(value);
        if (vals == NULL) {
                X509V3error(ERR_R_X509V3_LIB);
                goto err;
        }
        ia5org = 0;
        for (i = 0; i < sk_CONF_VALUE_num(vals); i++) {
                cnf = sk_CONF_VALUE_value(vals, i);
                if (cnf->value || !cnf->name) {
                        X509V3error(X509V3_R_INVALID_POLICY_IDENTIFIER);
                        X509V3_conf_err(cnf);
                        goto err;
                }
                pstr = cnf->name;
                if (!strcmp(pstr, "ia5org")) {
                        ia5org = 1;
                        continue;
                } else if (*pstr == '@') {
                        STACK_OF(CONF_VALUE) *polsect;
                        polsect = X509V3_get0_section(ctx, pstr + 1);
                        if (!polsect) {
                                X509V3error(X509V3_R_INVALID_SECTION);
                                X509V3_conf_err(cnf);
                                goto err;
                        }
                        pol = policy_section(ctx, polsect, ia5org);
                        if (!pol)
                                goto err;
                } else {
                        if (!(pobj = OBJ_txt2obj(cnf->name, 0))) {
                                X509V3error(X509V3_R_INVALID_OBJECT_IDENTIFIER);
                                X509V3_conf_err(cnf);
                                goto err;
                        }
                        pol = POLICYINFO_new();
                        pol->policyid = pobj;
                }
                if (!sk_POLICYINFO_push(pols, pol)){
                        POLICYINFO_free(pol);
                        X509V3error(ERR_R_MALLOC_FAILURE);
                        goto err;
                }
        }
        sk_CONF_VALUE_pop_free(vals, X509V3_conf_free);
        return pols;

 err:
        sk_CONF_VALUE_pop_free(vals, X509V3_conf_free);
        sk_POLICYINFO_pop_free(pols, POLICYINFO_free);
        return NULL;
}

static POLICYINFO *
policy_section(X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *polstrs, int ia5org)
{
        int i;
        CONF_VALUE *cnf;
        POLICYINFO *pol;
        POLICYQUALINFO *nqual = NULL;

        if ((pol = POLICYINFO_new()) == NULL)
                goto merr;
        for (i = 0; i < sk_CONF_VALUE_num(polstrs); i++) {
                cnf = sk_CONF_VALUE_value(polstrs, i);
                if (strcmp(cnf->name, "policyIdentifier") == 0) {
                        ASN1_OBJECT *pobj;

                        if ((pobj = OBJ_txt2obj(cnf->value, 0)) == NULL) {
                                X509V3error(X509V3_R_INVALID_OBJECT_IDENTIFIER);
                                X509V3_conf_err(cnf);
                                goto err;
                        }
                        pol->policyid = pobj;
                } else if (name_cmp(cnf->name, "CPS") == 0) {
                        if ((nqual = POLICYQUALINFO_new()) == NULL)
                                goto merr;
                        nqual->pqualid = OBJ_nid2obj(NID_id_qt_cps);
                        nqual->d.cpsuri = ASN1_IA5STRING_new();
                        if (nqual->d.cpsuri == NULL)
                                goto merr;
                        if (ASN1_STRING_set(nqual->d.cpsuri, cnf->value,
                            strlen(cnf->value)) == 0)
                                goto merr;

                        if (pol->qualifiers == NULL) {
                                pol->qualifiers = sk_POLICYQUALINFO_new_null();
                                if (pol->qualifiers == NULL)
                                        goto merr;
                        }
                        if (sk_POLICYQUALINFO_push(pol->qualifiers, nqual) == 0)
                                goto merr;
                        nqual = NULL;
                } else if (name_cmp(cnf->name, "userNotice") == 0) {
                        STACK_OF(CONF_VALUE) *unot;
                        POLICYQUALINFO *qual;

                        if (*cnf->value != '@') {
                                X509V3error(X509V3_R_EXPECTED_A_SECTION_NAME);
                                X509V3_conf_err(cnf);
                                goto err;
                        }
                        unot = X509V3_get0_section(ctx, cnf->value + 1);
                        if (unot == NULL) {
                                X509V3error(X509V3_R_INVALID_SECTION);
                                X509V3_conf_err(cnf);
                                goto err;
                        }
                        qual = notice_section(ctx, unot, ia5org);
                        if (qual == NULL)
                                goto err;

                        if (pol->qualifiers == NULL) {
                                pol->qualifiers = sk_POLICYQUALINFO_new_null();
                                if (pol->qualifiers == NULL)
                                        goto merr;
                        }
                        if (sk_POLICYQUALINFO_push(pol->qualifiers, qual) == 0)
                                goto merr;
                } else {
                        X509V3error(X509V3_R_INVALID_OPTION);
                        X509V3_conf_err(cnf);
                        goto err;
                }
        }
        if (pol->policyid == NULL) {
                X509V3error(X509V3_R_NO_POLICY_IDENTIFIER);
                goto err;
        }

        return pol;

 merr:
        X509V3error(ERR_R_MALLOC_FAILURE);

 err:
        POLICYQUALINFO_free(nqual);
        POLICYINFO_free(pol);
        return NULL;
}

static POLICYQUALINFO *
notice_section(X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *unot, int ia5org)
{
        int i, ret;
        CONF_VALUE *cnf;
        USERNOTICE *not;
        POLICYQUALINFO *qual;

        if (!(qual = POLICYQUALINFO_new()))
                goto merr;
        qual->pqualid = OBJ_nid2obj(NID_id_qt_unotice);
        if (!(not = USERNOTICE_new()))
                goto merr;
        qual->d.usernotice = not;
        for (i = 0; i < sk_CONF_VALUE_num(unot); i++) {
                cnf = sk_CONF_VALUE_value(unot, i);
                if (!strcmp(cnf->name, "explicitText")) {
                        if (not->exptext == NULL) {
                                not->exptext = ASN1_UTF8STRING_new();
                                if (not->exptext == NULL)
                                        goto merr;
                        }
                        if (!ASN1_STRING_set(not->exptext, cnf->value,
                            strlen(cnf->value)))
                                goto merr;
                } else if (!strcmp(cnf->name, "organization")) {
                        NOTICEREF *nref;
                        if (!not->noticeref) {
                                if (!(nref = NOTICEREF_new()))
                                        goto merr;
                                not->noticeref = nref;
                        } else
                                nref = not->noticeref;
                        if (ia5org)
                                nref->organization->type = V_ASN1_IA5STRING;
                        else
                                nref->organization->type = V_ASN1_VISIBLESTRING;
                        if (!ASN1_STRING_set(nref->organization, cnf->value,
                            strlen(cnf->value)))
                                goto merr;
                } else if (!strcmp(cnf->name, "noticeNumbers")) {
                        NOTICEREF *nref;
                        STACK_OF(CONF_VALUE) *nos;
                        if (!not->noticeref) {
                                if (!(nref = NOTICEREF_new()))
                                        goto merr;
                                not->noticeref = nref;
                        } else
                                nref = not->noticeref;
                        nos = X509V3_parse_list(cnf->value);
                        if (!nos || !sk_CONF_VALUE_num(nos)) {
                                X509V3error(X509V3_R_INVALID_NUMBERS);
                                X509V3_conf_err(cnf);
                                if (nos != NULL)
                                        sk_CONF_VALUE_pop_free(nos,
                                            X509V3_conf_free);
                                goto err;
                        }
                        ret = nref_nos(nref->noticenos, nos);
                        sk_CONF_VALUE_pop_free(nos, X509V3_conf_free);
                        if (!ret)
                                goto err;
                } else {
                        X509V3error(X509V3_R_INVALID_OPTION);
                        X509V3_conf_err(cnf);
                        goto err;
                }
        }

        if (not->noticeref &&
            (!not->noticeref->noticenos || !not->noticeref->organization)) {
                X509V3error(X509V3_R_NEED_ORGANIZATION_AND_NUMBERS);
                goto err;
        }

        return qual;

 merr:
        X509V3error(ERR_R_MALLOC_FAILURE);

 err:
        POLICYQUALINFO_free(qual);
        return NULL;
}

static int
nref_nos(STACK_OF(ASN1_INTEGER) *nnums, STACK_OF(CONF_VALUE) *nos)
{
        CONF_VALUE *cnf;
        ASN1_INTEGER *aint;
        int i;

        for (i = 0; i < sk_CONF_VALUE_num(nos); i++) {
                cnf = sk_CONF_VALUE_value(nos, i);
                if ((aint = s2i_ASN1_INTEGER(NULL, cnf->name)) == NULL) {
                        X509V3error(X509V3_R_INVALID_NUMBER);
                        return 0;
                }
                if (sk_ASN1_INTEGER_push(nnums, aint) <= 0) {
                        X509V3error(ERR_R_MALLOC_FAILURE);
                        ASN1_INTEGER_free(aint);
                        return 0;
                }
        }

        return 1;
}

static int
i2r_certpol(X509V3_EXT_METHOD *method, STACK_OF(POLICYINFO) *pol, BIO *out,
    int indent)
{
        int i;
        POLICYINFO *pinfo;

        /* First print out the policy OIDs */
        for (i = 0; i < sk_POLICYINFO_num(pol); i++) {
                pinfo = sk_POLICYINFO_value(pol, i);
                BIO_printf(out, "%*sPolicy: ", indent, "");
                i2a_ASN1_OBJECT(out, pinfo->policyid);
                BIO_puts(out, "\n");
                if (pinfo->qualifiers)
                        print_qualifiers(out, pinfo->qualifiers, indent + 2);
        }
        return 1;
}

static void
print_qualifiers(BIO *out, STACK_OF(POLICYQUALINFO) *quals, int indent)
{
        POLICYQUALINFO *qualinfo;
        int i;

        for (i = 0; i < sk_POLICYQUALINFO_num(quals); i++) {
                qualinfo = sk_POLICYQUALINFO_value(quals, i);
                switch (OBJ_obj2nid(qualinfo->pqualid)) {
                case NID_id_qt_cps:
                        BIO_printf(out, "%*sCPS: %.*s\n", indent, "",
                            qualinfo->d.cpsuri->length,
                            qualinfo->d.cpsuri->data);
                        break;

                case NID_id_qt_unotice:
                        BIO_printf(out, "%*sUser Notice:\n", indent, "");
                        print_notice(out, qualinfo->d.usernotice, indent + 2);
                        break;

                default:
                        BIO_printf(out, "%*sUnknown Qualifier: ",
                            indent + 2, "");

                        i2a_ASN1_OBJECT(out, qualinfo->pqualid);
                        BIO_puts(out, "\n");
                        break;
                }
        }
}

static void
print_notice(BIO *out, USERNOTICE *notice, int indent)
{
        int i;

        if (notice->noticeref) {
                NOTICEREF *ref;
                ref = notice->noticeref;
                BIO_printf(out, "%*sOrganization: %.*s\n", indent, "",
                    ref->organization->length, ref->organization->data);
                BIO_printf(out, "%*sNumber%s: ", indent, "",
                    sk_ASN1_INTEGER_num(ref->noticenos) > 1 ? "s" : "");
                for (i = 0; i < sk_ASN1_INTEGER_num(ref->noticenos); i++) {
                        ASN1_INTEGER *num;
                        char *tmp;
                        num = sk_ASN1_INTEGER_value(ref->noticenos, i);
                        if (i)
                                BIO_puts(out, ", ");
                        tmp = i2s_ASN1_INTEGER(NULL, num);
                        BIO_puts(out, tmp);
                        free(tmp);
                }
                BIO_puts(out, "\n");
        }
        if (notice->exptext)
                BIO_printf(out, "%*sExplicit Text: %.*s\n", indent, "",
                    notice->exptext->length, notice->exptext->data);
}