bc36ee6227
missed any. This compiles and runs on Linux, and external applications have no problems with it. The definite test will be to build this on VMS.
334 lines
9.3 KiB
C
334 lines
9.3 KiB
C
/* apps/asn1pars.c */
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/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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* All rights reserved.
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*
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* This package is an SSL implementation written
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* by Eric Young (eay@cryptsoft.com).
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* The implementation was written so as to conform with Netscapes SSL.
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*
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* This library is free for commercial and non-commercial use as long as
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* the following conditions are aheared to. The following conditions
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* apply to all code found in this distribution, be it the RC4, RSA,
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation
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* included with this distribution is covered by the same copyright terms
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* except that the holder is Tim Hudson (tjh@cryptsoft.com).
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*
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* Copyright remains Eric Young's, and as such any Copyright notices in
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* the code are not to be removed.
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* If this package is used in a product, Eric Young should be given attribution
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* as the author of the parts of the library used.
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* This can be in the form of a textual message at program startup or
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* in documentation (online or textual) provided with the package.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* "This product includes cryptographic software written by
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* Eric Young (eay@cryptsoft.com)"
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* The word 'cryptographic' can be left out if the rouines from the library
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* being used are not cryptographic related :-).
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* 4. If you include any Windows specific code (or a derivative thereof) from
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* the apps directory (application code) you must include an acknowledgement:
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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*
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* The licence and distribution terms for any publically available version or
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* derivative of this code cannot be changed. i.e. this code cannot simply be
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* copied and put under another distribution licence
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* [including the GNU Public Licence.]
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*/
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/* A nice addition from Dr Stephen Henson <shenson@bigfoot.com> to
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* add the -strparse option which parses nested binary structures
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "apps.h"
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#include <openssl/err.h>
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#include <openssl/evp.h>
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#include <openssl/x509.h>
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#include <openssl/pem.h>
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/* -inform arg - input format - default PEM (DER or PEM)
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* -in arg - input file - default stdin
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* -i - indent the details by depth
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* -offset - where in the file to start
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* -length - how many bytes to use
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* -oid file - extra oid description file
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*/
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#undef PROG
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#define PROG asn1parse_main
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int MAIN(int, char **);
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int MAIN(int argc, char **argv)
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{
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int i,badops=0,offset=0,ret=1,j;
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unsigned int length=0;
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long num,tmplen;
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BIO *in=NULL,*out=NULL,*b64=NULL, *derout = NULL;
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int informat,indent=0, noout = 0, dump = 0;
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char *infile=NULL,*str=NULL,*prog,*oidfile=NULL, *derfile=NULL;
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unsigned char *tmpbuf;
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BUF_MEM *buf=NULL;
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STACK *osk=NULL;
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ASN1_TYPE *at=NULL;
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informat=FORMAT_PEM;
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apps_startup();
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if (bio_err == NULL)
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if ((bio_err=BIO_new(BIO_s_file())) != NULL)
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BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
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prog=argv[0];
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argc--;
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argv++;
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if ((osk=sk_new_null()) == NULL)
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{
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BIO_printf(bio_err,"Memory allocation failure\n");
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goto end;
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}
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while (argc >= 1)
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{
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if (strcmp(*argv,"-inform") == 0)
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{
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if (--argc < 1) goto bad;
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informat=str2fmt(*(++argv));
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}
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else if (strcmp(*argv,"-in") == 0)
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{
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if (--argc < 1) goto bad;
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infile= *(++argv);
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}
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else if (strcmp(*argv,"-out") == 0)
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{
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if (--argc < 1) goto bad;
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derfile= *(++argv);
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}
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else if (strcmp(*argv,"-i") == 0)
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{
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indent=1;
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}
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else if (strcmp(*argv,"-noout") == 0) noout = 1;
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else if (strcmp(*argv,"-oid") == 0)
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{
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if (--argc < 1) goto bad;
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oidfile= *(++argv);
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}
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else if (strcmp(*argv,"-offset") == 0)
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{
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if (--argc < 1) goto bad;
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offset= atoi(*(++argv));
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}
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else if (strcmp(*argv,"-length") == 0)
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{
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if (--argc < 1) goto bad;
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length= atoi(*(++argv));
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if (length == 0) goto bad;
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}
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else if (strcmp(*argv,"-dump") == 0)
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{
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dump= -1;
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}
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else if (strcmp(*argv,"-dlimit") == 0)
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{
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if (--argc < 1) goto bad;
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dump= atoi(*(++argv));
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if (dump <= 0) goto bad;
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}
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else if (strcmp(*argv,"-strparse") == 0)
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{
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if (--argc < 1) goto bad;
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sk_push(osk,*(++argv));
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}
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else
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{
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BIO_printf(bio_err,"unknown option %s\n",*argv);
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badops=1;
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break;
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}
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argc--;
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argv++;
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}
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if (badops)
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{
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bad:
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BIO_printf(bio_err,"%s [options] <infile\n",prog);
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BIO_printf(bio_err,"where options are\n");
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BIO_printf(bio_err," -inform arg input format - one of DER TXT PEM\n");
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BIO_printf(bio_err," -in arg input file\n");
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BIO_printf(bio_err," -out arg output file\n");
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BIO_printf(bio_err," -noout arg don't produce any output\n");
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BIO_printf(bio_err," -offset arg offset into file\n");
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BIO_printf(bio_err," -length arg length of section in file\n");
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BIO_printf(bio_err," -i indent entries\n");
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BIO_printf(bio_err," -dump dump unknown data in hex form\n");
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BIO_printf(bio_err," -dlimit arg dump the first arg bytes of unknown data in hex form\n");
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BIO_printf(bio_err," -oid file file of extra oid definitions\n");
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BIO_printf(bio_err," -strparse offset\n");
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BIO_printf(bio_err," a series of these can be used to 'dig' into multiple\n");
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BIO_printf(bio_err," ASN1 blob wrappings\n");
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BIO_printf(bio_err," -out filename output DER encoding to file\n");
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goto end;
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}
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ERR_load_crypto_strings();
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in=BIO_new(BIO_s_file());
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out=BIO_new(BIO_s_file());
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if ((in == NULL) || (out == NULL))
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{
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ERR_print_errors(bio_err);
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goto end;
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}
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BIO_set_fp(out,stdout,BIO_NOCLOSE|BIO_FP_TEXT);
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#ifdef OPENSSL_SYS_VMS
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{
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BIO *tmpbio = BIO_new(BIO_f_linebuffer());
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out = BIO_push(tmpbio, out);
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}
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#endif
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if (oidfile != NULL)
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{
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if (BIO_read_filename(in,oidfile) <= 0)
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{
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BIO_printf(bio_err,"problems opening %s\n",oidfile);
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ERR_print_errors(bio_err);
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goto end;
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}
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OBJ_create_objects(in);
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}
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if (infile == NULL)
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BIO_set_fp(in,stdin,BIO_NOCLOSE);
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else
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{
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if (BIO_read_filename(in,infile) <= 0)
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{
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perror(infile);
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goto end;
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}
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}
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if (derfile) {
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if(!(derout = BIO_new_file(derfile, "wb"))) {
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BIO_printf(bio_err,"problems opening %s\n",derfile);
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ERR_print_errors(bio_err);
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goto end;
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}
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}
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if ((buf=BUF_MEM_new()) == NULL) goto end;
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if (!BUF_MEM_grow(buf,BUFSIZ*8)) goto end; /* Pre-allocate :-) */
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if (informat == FORMAT_PEM)
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{
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BIO *tmp;
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if ((b64=BIO_new(BIO_f_base64())) == NULL)
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goto end;
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BIO_push(b64,in);
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tmp=in;
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in=b64;
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b64=tmp;
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}
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num=0;
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for (;;)
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{
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if (!BUF_MEM_grow(buf,(int)num+BUFSIZ)) goto end;
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i=BIO_read(in,&(buf->data[num]),BUFSIZ);
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if (i <= 0) break;
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num+=i;
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}
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str=buf->data;
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/* If any structs to parse go through in sequence */
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if (sk_num(osk))
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{
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tmpbuf=(unsigned char *)str;
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tmplen=num;
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for (i=0; i<sk_num(osk); i++)
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{
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ASN1_TYPE *atmp;
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j=atoi(sk_value(osk,i));
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if (j == 0)
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{
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BIO_printf(bio_err,"'%s' is an invalid number\n",sk_value(osk,i));
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continue;
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}
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tmpbuf+=j;
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tmplen-=j;
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atmp = at;
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at = d2i_ASN1_TYPE(NULL,&tmpbuf,tmplen);
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ASN1_TYPE_free(atmp);
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if(!at)
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{
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BIO_printf(bio_err,"Error parsing structure\n");
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ERR_print_errors(bio_err);
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goto end;
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}
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/* hmm... this is a little evil but it works */
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tmpbuf=at->value.asn1_string->data;
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tmplen=at->value.asn1_string->length;
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}
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str=(char *)tmpbuf;
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num=tmplen;
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}
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if (length == 0) length=(unsigned int)num;
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if(derout) {
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if(BIO_write(derout, str + offset, length) != (int)length) {
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BIO_printf(bio_err, "Error writing output\n");
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ERR_print_errors(bio_err);
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goto end;
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}
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}
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if (!noout &&
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!ASN1_parse_dump(out,(unsigned char *)&(str[offset]),length,
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indent,dump))
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{
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ERR_print_errors(bio_err);
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goto end;
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}
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ret=0;
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end:
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BIO_free(derout);
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if (in != NULL) BIO_free(in);
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if (out != NULL) BIO_free_all(out);
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if (b64 != NULL) BIO_free(b64);
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if (ret != 0)
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ERR_print_errors(bio_err);
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if (buf != NULL) BUF_MEM_free(buf);
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if (at != NULL) ASN1_TYPE_free(at);
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if (osk != NULL) sk_free(osk);
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OBJ_cleanup();
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EXIT(ret);
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}
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