/* nseq.c */

 /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL

  * project 1999.

  */

 /* ====================================================================

  * Copyright (c) 1999 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 "apps.h"

 #include <openssl/pem.h>

 #include <openssl/err.h>

 #undef PROG

 #define PROG nseq_main

 int MAIN(int, char **);

 int MAIN(int argc, char **argv)

 {

 	char **args, *infile = NULL, *outfile = NULL;

 	BIO *in = NULL, *out = NULL;

 	int toseq = 0;

 	X509 *x509 = NULL;

 	NETSCAPE_CERT_SEQUENCE *seq = NULL;

 	int i, ret = 1;

 	int badarg = 0;

 	if (bio_err == NULL) 

 	bio_err = BIO_new_fp (stderr, BIO_NOCLOSE);

 	ERR_load_crypto_strings();

 	args = argv + 1;

 	while (!badarg && *args && *args[0] == '-') {

 		if (!strcmp (*args, "-toseq")) toseq = 1;

 		else if (!strcmp (*args, "-in")) {

 			if (args[1]) {

 				args++;

 				infile = *args;

 			} else badarg = 1;

 		} else if (!strcmp (*args, "-out")) {

 			if (args[1]) {

 				args++;

 				outfile = *args;

 			} else badarg = 1;

 		} else badarg = 1;

 		args++;

 	}

 	if (badarg) {

 		BIO_printf (bio_err, "Netscape certificate sequence utility\n");

 		BIO_printf (bio_err, "Usage nseq [options]\n");

 		BIO_printf (bio_err, "where options are\n");

 		BIO_printf (bio_err, "-in file  input file\n");

 		BIO_printf (bio_err, "-out file output file\n");

 		BIO_printf (bio_err, "-toseq    output NS Sequence file\n");

 		OPENSSL_EXIT(1);

 	}

 	if (infile) {

 		if (!(in = BIO_new_file (infile, "r"))) {

 			BIO_printf (bio_err,

 				 "Can't open input file %s\n", infile);

 			goto end;

 		}

 	} else 

 	in = BIO_new_fp(stdin, BIO_NOCLOSE);

 	if (outfile) {

 		if (!(out = BIO_new_file (outfile, "w"))) {

 			BIO_printf (bio_err,

 				 "Can't open output file %s\n", outfile);

 			goto end;

 		}

 	} else {

 		out = BIO_new_fp(stdout, BIO_NOCLOSE);

 #ifdef OPENSSL_SYS_VMS

 		{

 		BIO *tmpbio = BIO_new(BIO_f_linebuffer());

 		out = BIO_push(tmpbio, out);

 		}

 #endif

 	}

 	if (toseq) {

 		seq = NETSCAPE_CERT_SEQUENCE_new();

 		seq->certs = sk_X509_new_null();

 		while((x509 = PEM_read_bio_X509(in, NULL, NULL, NULL))) 

 		    sk_X509_push(seq->certs,x509);

 		if(!sk_X509_num(seq->certs))

 		{

 			BIO_printf (bio_err, "Error reading certs file %s\n", infile);

 			ERR_print_errors(bio_err);

 			goto end;

 		}

 		PEM_write_bio_NETSCAPE_CERT_SEQUENCE(out, seq);

 		ret = 0;

 		goto end;

 	}

 	if (!(seq = PEM_read_bio_NETSCAPE_CERT_SEQUENCE(in, NULL, NULL, NULL))) {

 		BIO_printf (bio_err, "Error reading sequence file %s\n", infile);

 		ERR_print_errors(bio_err);

 		goto end;

 	}

 	for(i = 0; i < sk_X509_num(seq->certs); i++) {

 		x509 = sk_X509_value(seq->certs, i);

 		dump_cert_text(out, x509);

 		PEM_write_bio_X509(out, x509);

 	}

 	ret = 0;

 end:

 	BIO_free(in);

 	BIO_free_all(out);

 	NETSCAPE_CERT_SEQUENCE_free(seq);

 	OPENSSL_EXIT(ret);

 }