t_req.c

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/* crypto/asn1/t_req.c */
/* Copyright (C) 1995-1998 Eric Young ([email protected])
 * All rights reserved.
 *
 * This package is an SSL implementation written
 * by Eric Young ([email protected]).
 * 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 ([email protected]).
 * 
 * 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 ([email protected])"
 *    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 ([email protected])"
 * 
 * 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 "cryptlib.h"
#include <openssl/buffer.h>
#include <openssl/bn.h>
#include <openssl/objects.h>
#include <openssl/x509.h>
#include <openssl/x509v3.h>
#ifndef OPENSSL_NO_RSA
#include <openssl/rsa.h>
#endif
#ifndef OPENSSL_NO_DSA
#include <openssl/dsa.h>
#endif

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

        if ((b=BIO_new(BIO_s_file())) == NULL)
        {
        X509err(X509_F_X509_REQ_PRINT_FP,ERR_R_BUF_LIB);
                return(0);
        }
        BIO_set_fp(b,fp,BIO_NOCLOSE);
        ret=X509_REQ_print(b, x);
        BIO_free(b);
        return(ret);
        }
#endif

int X509_REQ_print_ex(BIO *bp, X509_REQ *x, unsigned long nmflags, unsigned long cflag)
    {
    unsigned long l;
    int i;
    const char *neg;
    X509_REQ_INFO *ri;
    EVP_PKEY *pkey;
    STACK_OF(X509_ATTRIBUTE) *sk;
    STACK_OF(X509_EXTENSION) *exts;
    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))
        {
        neg=(ri->version->type == V_ASN1_NEG_INTEGER)?"-":"";
        l=0;
        for (i=0; i<ri->version->length; i++)
            { l<<=8; l+=ri->version->data[i]; }
        if(BIO_printf(bp,"%8sVersion: %s%lu (%s0x%lx)\n","",neg,l,neg,
                  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;
                ASN1_TYPE *t;
                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)
                {
                if (a->single)
                    {
                    t=a->value.single;
                    type=t->type;
                    bs=t->value.bit_string;
                    }
                else
                    {
                    ii=0;
                    count=sk_ASN1_TYPE_num(a->value.set);
get_next:
                    at=sk_ASN1_TYPE_value(a->value.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", "");
                    M_ASN1_OCTET_STRING_print(bp,ex->value);
                    }
                if (BIO_write(bp,"\n",1) <= 0) goto err;
                }
            sk_X509_EXTENSION_pop_free(exts, X509_EXTENSION_free);
            }
        }

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

    return(1);
err:
    X509err(X509_F_X509_REQ_PRINT_EX,ERR_R_BUF_LIB);
    return(0);
    }

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