/* $OpenBSD: t_req.c,v 1.29 2025/05/10 05:54:38 tb Exp $ */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
 * All rights reserved.
 *
 * This package is an SSL implementation written
 * by Eric Young (eay@cryptsoft.com).
 * The implementation was written so as to conform with Netscapes SSL.
 *
 * This library is free for commercial and non-commercial use as long as
 * the following conditions are aheared to.  The following conditions
 * apply to all code found in this distribution, be it the RC4, RSA,
 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
 * included with this distribution is covered by the same copyright terms
 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
 *
 * Copyright remains Eric Young's, and as such any Copyright notices in
 * the code are not to be removed.
 * If this package is used in a product, Eric Young should be given attribution
 * as the author of the parts of the library used.
 * This can be in the form of a textual message at program startup or
 * in documentation (online or textual) provided with the package.
 *
 * 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 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 acknowledgement:
 *    "This product includes cryptographic software written by
 *     Eric Young (eay@cryptsoft.com)"
 *    The word 'cryptographic' can be left out if the rouines from the library
 *    being used are not cryptographic related :-).
 * 4. If you include any Windows specific code (or a derivative thereof) from
 *    the apps directory (application code) you must include an acknowledgement:
 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
 *
 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
 * ANY EXPRESS 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 AUTHOR OR 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.
 *
 * The licence and distribution terms for any publically available version or
 * derivative of this code cannot be changed.  i.e. this code cannot simply be
 * copied and put under another distribution licence
 * [including the GNU Public Licence.]
 */

#include <stdio.h>

#include <openssl/opensslconf.h>

#include <openssl/bn.h>
#include <openssl/buffer.h>
#include <openssl/objects.h>
#include <openssl/x509.h>
#include <openssl/x509v3.h>

#ifndef OPENSSL_NO_DSA
#include <openssl/dsa.h>
#endif
#ifndef OPENSSL_NO_RSA
#include <openssl/rsa.h>
#endif

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

int
X509_REQ_print_fp(FILE *fp, X509_REQ *x)
{
        BIO *b;
        int ret;

        if ((b = BIO_new(BIO_s_file())) == NULL) {
                X509error(ERR_R_BUF_LIB);
                return (0);
        }
        BIO_set_fp(b, fp, BIO_NOCLOSE);
        ret = X509_REQ_print(b, x);
        BIO_free(b);
        return (ret);
}
LCRYPTO_ALIAS(X509_REQ_print_fp);

int
X509_REQ_print_ex(BIO *bp, X509_REQ *x, unsigned long nmflags,
    unsigned long cflag)
{
        unsigned long l;
        int i;
        X509_REQ_INFO *ri;
        EVP_PKEY *pkey;
        STACK_OF(X509_ATTRIBUTE) *sk;
        STACK_OF(X509_EXTENSION) *exts = NULL;
        char mlch = ' ';
        int nmindent = 0;

        if ((nmflags & XN_FLAG_SEP_MASK) == XN_FLAG_SEP_MULTILINE) {
                mlch = '\n';
                nmindent = 12;
        }

        if (nmflags == X509_FLAG_COMPAT)
                nmindent = 16;

        ri = x->req_info;
        if (!(cflag & X509_FLAG_NO_HEADER)) {
                if (BIO_write(bp, "Certificate Request:\n", 21) <= 0)
                        goto err;
                if (BIO_write(bp, "    Data:\n", 10) <= 0)

                        goto err;
        }
        if (!(cflag & X509_FLAG_NO_VERSION)) {
                if ((l = X509_REQ_get_version(x)) == 0) {
                        if (BIO_printf(bp, "%8sVersion: 1 (0x0)\n", "") <= 0)
                                goto err;
                } else {
                        if (BIO_printf(bp, "%8sVersion: unknown (%ld)\n",
                            "", l) <= 0)
                                goto err;
                }
        }
        if (!(cflag & X509_FLAG_NO_SUBJECT)) {
                if (BIO_printf(bp, "        Subject:%c", mlch) <= 0)
                        goto err;
                if (X509_NAME_print_ex(bp, ri->subject, nmindent, nmflags) < 0)
                        goto err;
                if (BIO_write(bp, "\n", 1) <= 0)
                        goto err;
        }
        if (!(cflag & X509_FLAG_NO_PUBKEY)) {
                if (BIO_write(bp, "        Subject Public Key Info:\n",
                    33) <= 0)
                        goto err;
                if (BIO_printf(bp, "%12sPublic Key Algorithm: ", "") <= 0)
                        goto err;
                if (i2a_ASN1_OBJECT(bp, ri->pubkey->algor->algorithm) <= 0)
                        goto err;
                if (BIO_puts(bp, "\n") <= 0)
                        goto err;

                pkey = X509_REQ_get_pubkey(x);
                if (pkey == NULL) {
                        BIO_printf(bp, "%12sUnable to load Public Key\n", "");
                        ERR_print_errors(bp);
                } else {
                        EVP_PKEY_print_public(bp, pkey, 16, NULL);
                        EVP_PKEY_free(pkey);
                }
        }

        if (!(cflag & X509_FLAG_NO_ATTRIBUTES)) {
                /* may not be */
                if (BIO_printf(bp, "%8sAttributes:\n", "") <= 0)
                        goto err;

                sk = x->req_info->attributes;
                if (sk_X509_ATTRIBUTE_num(sk) == 0) {
                        if (BIO_printf(bp, "%12sa0:00\n", "") <= 0)
                                goto err;
                } else {
                        for (i = 0; i < sk_X509_ATTRIBUTE_num(sk); i++) {
                                ASN1_TYPE *at;
                                X509_ATTRIBUTE *a;
                                ASN1_BIT_STRING *bs = NULL;
                                int j, type = 0, count = 1, ii = 0;

                                a = sk_X509_ATTRIBUTE_value(sk, i);
                                if (X509_REQ_extension_nid(
                                    OBJ_obj2nid(a->object)))
                                        continue;
                                if (BIO_printf(bp, "%12s", "") <= 0)
                                        goto err;
                                if ((j = i2a_ASN1_OBJECT(bp, a->object)) > 0) {
                                        ii = 0;
                                        count = sk_ASN1_TYPE_num(a->set);
 get_next:
                                        at = sk_ASN1_TYPE_value(a->set, ii);
                                        type = at->type;
                                        bs = at->value.asn1_string;
                                }
                                for (j = 25 - j; j > 0; j--)
                                        if (BIO_write(bp, " ", 1) != 1)
                                                goto err;
                                if (BIO_puts(bp, ":") <= 0)
                                        goto err;
                                if ((type == V_ASN1_PRINTABLESTRING) ||
                                    (type == V_ASN1_T61STRING) ||
                                    (type == V_ASN1_IA5STRING)) {
                                        if (BIO_write(bp, (char *)bs->data,
                                            bs->length) != bs->length)
                                                goto err;
                                        BIO_puts(bp, "\n");
                                } else {
                                        BIO_puts(bp,
                                            "unable to print attribute\n");
                                }
                                if (++ii < count)
                                        goto get_next;
                        }
                }
        }
        if (!(cflag & X509_FLAG_NO_EXTENSIONS)) {
                exts = X509_REQ_get_extensions(x);
                if (exts) {
                        BIO_printf(bp, "%8sRequested Extensions:\n", "");
                        for (i = 0; i < sk_X509_EXTENSION_num(exts); i++) {
                                ASN1_OBJECT *obj;
                                X509_EXTENSION *ex;
                                int j;
                                ex = sk_X509_EXTENSION_value(exts, i);
                                if (BIO_printf(bp, "%12s", "") <= 0)
                                        goto err;
                                obj = X509_EXTENSION_get_object(ex);
                                i2a_ASN1_OBJECT(bp, obj);
                                j = X509_EXTENSION_get_critical(ex);
                                if (BIO_printf(bp, ": %s\n",
                                    j ? "critical" : "") <= 0)
                                        goto err;
                                if (!X509V3_EXT_print(bp, ex, cflag, 16)) {
                                        BIO_printf(bp, "%16s", "");
                                        ASN1_STRING_print(bp, ex->value);
                                }
                                if (BIO_write(bp, "\n", 1) <= 0)
                                        goto err;
                        }
                        sk_X509_EXTENSION_pop_free(exts, X509_EXTENSION_free);
                        exts = NULL;
                }
        }

        if (!(cflag & X509_FLAG_NO_SIGDUMP)) {
                if (!X509_signature_print(bp, x->sig_alg, x->signature))
                        goto err;
        }

        return (1);

 err:
        sk_X509_EXTENSION_pop_free(exts, X509_EXTENSION_free);
        X509error(ERR_R_BUF_LIB);
        return (0);
}
LCRYPTO_ALIAS(X509_REQ_print_ex);

int
X509_REQ_print(BIO *bp, X509_REQ *x)
{
        return X509_REQ_print_ex(bp, x, XN_FLAG_COMPAT, X509_FLAG_COMPAT);
}
LCRYPTO_ALIAS(X509_REQ_print);