/* apps/asn1pars.c */
/* Copyright (C) 1995-1997 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 <stdlib.h>
#include <string.h>
#include "apps.h"
#include "err.h"
#include "evp.h"
#include "x509.h"
#include "pem.h"
#define FORMAT_UNDEF 0
#define FORMAT_ASN1 1
#define FORMAT_TEXT 2
#define FORMAT_PEM 3
/* -inform arg - input format - default PEM (DER or PEM)
* -in arg - input file - default stdin
* -i - indent the details by depth
* -offset - where in the file to start
* -length - how many bytes to use
*/
#undef PROG
#define PROG asn1parse_main
int MAIN(argc, argv)
int argc;
char **argv;
{
int i,badops=0,offset=0,ret=1;
unsigned int length=0;
long num;
BIO *in=NULL,*out=NULL,*b64=NULL;
int informat,indent=0;
char *infile,*str=NULL,*prog;
BUF_MEM *buf=NULL;
infile=NULL;
informat=FORMAT_PEM;
apps_startup();
if (bio_err == NULL)
if ((bio_err=BIO_new(BIO_s_file())) != NULL)
BIO_set_fp(bio_err,stderr,BIO_NOCLOSE);
prog=argv[0];
argc--;
argv++;
while (argc >= 1)
{
if (strcmp(*argv,"-inform") == 0)
{
if (--argc < 1) goto bad;
informat=str2fmt(*(++argv));
}
else if (strcmp(*argv,"-in") == 0)
{
if (--argc < 1) goto bad;
infile= *(++argv);
}
else if (strcmp(*argv,"-i") == 0)
{
indent=1;
}
else if (strcmp(*argv,"-offset") == 0)
{
if (--argc < 1) goto bad;
offset= atoi(*(++argv));
}
else if (strcmp(*argv,"-length") == 0)
{
if (--argc < 1) goto bad;
length= atoi(*(++argv));
if (length == 0) goto bad;
}
else
{
BIO_printf(bio_err,"unknown option %s\n",*argv);
badops=1;
break;
}
argc--;
argv++;
}
if (badops)
{
bad:
BIO_printf(bio_err,"%s [options] <infile\n",prog);
BIO_printf(bio_err,"where options are\n");
BIO_printf(bio_err," -inform arg input format - one of DER TXT PEM\n");
BIO_printf(bio_err," -in arg inout file\n");
BIO_printf(bio_err," -offset arg offset into file\n");
BIO_printf(bio_err," -length arg lenth of section in file\n");
BIO_printf(bio_err," -i indent entries\n");
goto end;
}
ERR_load_crypto_strings();
in=BIO_new(BIO_s_file());
out=BIO_new(BIO_s_file());
if ((in == NULL) || (out == NULL))
{
ERR_print_errors(bio_err);
goto end;
}
BIO_set_fp(out,stdout,BIO_NOCLOSE);
if (infile == NULL)
BIO_set_fp(in,stdin,BIO_NOCLOSE);
else
{
if (BIO_read_filename(in,infile) <= 0)
{
perror(infile);
goto end;
}
}
if ((buf=BUF_MEM_new()) == NULL) goto end;
if (!BUF_MEM_grow(buf,BUFSIZ*8)) goto end; /* Pre-allocate :-) */
if (informat == FORMAT_PEM)
{
BIO *tmp;
if ((b64=BIO_new(BIO_f_base64())) == NULL)
goto end;
BIO_push(b64,in);
tmp=in;
in=b64;
b64=tmp;
}
num=0;
for (;;)
{
if (!BUF_MEM_grow(buf,(int)num+BUFSIZ)) goto end;
i=BIO_read(in,&(buf->data[num]),BUFSIZ);
if (i <= 0) break;
num+=i;
}
str=buf->data;
if (length == 0) length=(unsigned int)num;
if (!ASN1_parse(out,(unsigned char *)&(str[offset]),length,indent))
{
ERR_print_errors(bio_err);
goto end;
}
ret=0;
end:
if (in != NULL) BIO_free(in);
if (out != NULL) BIO_free(out);
if (b64 != NULL) BIO_free(b64);
if (ret != 0)
ERR_print_errors(bio_err);
if (buf != NULL) BUF_MEM_free(buf);
EXIT(ret);
}