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/* asn1Parser.c -- program to parse a file with ASN1 definitions
* Copyright (C) 2002-2014 Free Software Foundation, Inc.
*
* This file is part of LIBTASN1.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include <config.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <getopt.h>
#include <assert.h>
#include <libtasn1.h>
#define program_name "asn1Parser"
/* This feature is available in gcc versions 2.5 and later. */
#if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5)
#define ATTR_NO_RETRUN
#else
#define ATTR_NO_RETRUN __attribute__ ((__noreturn__))
#endif
ATTR_NO_RETRUN static void
usage (int status)
{
if (status != EXIT_SUCCESS)
fprintf (stderr, "Try `%s --help' for more information.\n", program_name);
else
{
printf ("\
Usage: %s [OPTION] FILE\n", program_name);
printf ("\
Read FILE with ASN.1 definitions and generate\n\
a C array that is used with libtasn1 functions.\n\
\n");
printf ("\
Mandatory arguments to long options are mandatory for short options too.\n\
-c, --check checks the syntax only\n\
-o, --output=FILE output file\n\
-n, --name=NAME array name\n\
-h, --help display this help and exit\n\
-v, --version output version information and exit\n");
printf ("Report bugs to "PACKAGE_BUGREPORT);
}
exit (status);
}
int
main (int argc, char *argv[])
{
static const struct option long_options[] = {
{"help", no_argument, 0, 'h'},
{"version", no_argument, 0, 'v'},
{"check", no_argument, 0, 'c'},
{"output", required_argument, 0, 'o'},
{"name", required_argument, 0, 'n'},
{0, 0, 0, 0}
};
int option_index = 0;
int option_result;
char *outputFileName = NULL;
char *inputFileName = NULL;
char *vectorName = NULL;
int checkSyntaxOnly = 0;
asn1_node pointer = NULL;
char errorDescription[ASN1_MAX_ERROR_DESCRIPTION_SIZE];
int parse_result = ASN1_SUCCESS;
opterr = 0; /* disable error messages from getopt */
while (1)
{
option_result =
getopt_long (argc, argv, "hvco:n:", long_options, &option_index);
if (option_result == -1)
break;
switch (option_result)
{
case 0:
fprintf (stderr, "option %s", long_options[option_index].name);
if (optarg)
fprintf (stderr, " with arg %s", optarg);
putc ('\n', stderr);
break;
case 'h': /* HELP */
free (outputFileName);
free (vectorName);
usage (EXIT_SUCCESS);
break;
case 'v': /* VERSION */
printf(program_name" "PACKAGE" " VERSION"\n");
printf("Copyright (C) 2017-2019 Free Software Foundation, Inc.\n\n");
printf("Written by Fabio Fiorina\n");
free (outputFileName);
free (vectorName);
exit (0);
break;
case 'c': /* CHECK SYNTAX */
checkSyntaxOnly = 1;
break;
case 'o': /* OUTPUT */
assert(optarg != NULL);
outputFileName = strdup(optarg);
if (outputFileName == NULL)
{
fprintf(stderr, "Memory error\n");
exit(1);
}
break;
case 'n': /* VECTOR NAME */
assert(optarg != NULL);
vectorName = strdup(optarg);
if (vectorName == NULL)
{
fprintf(stderr, "Memory error\n");
exit(1);
}
break;
case '?': /* UNKNOW OPTION */
fprintf (stderr,
"asn1Parser: option '%s' not recognized or without argument.\n\n",
argv[optind - 1]);
free (outputFileName);
free (vectorName);
usage (EXIT_FAILURE);
break;
default:
fprintf (stderr,
"asn1Parser: ?? getopt returned character code Ox%x ??\n",
(unsigned)option_result);
}
}
if (optind == argc)
{
free (outputFileName);
free (vectorName);
usage (EXIT_SUCCESS);
}
else
{
inputFileName = (char *) malloc (strlen (argv[optind]) + 1);
strcpy (inputFileName, argv[optind]);
}
if (checkSyntaxOnly == 1)
{
parse_result =
asn1_parser2tree (inputFileName, &pointer, errorDescription);
asn1_delete_structure (&pointer);
}
else /* C VECTOR CREATION */
parse_result = asn1_parser2array (inputFileName,
outputFileName, vectorName,
errorDescription);
switch (parse_result)
{
case ASN1_SUCCESS:
fputs ("Done.\n", stderr);
break;
case ASN1_FILE_NOT_FOUND:
fprintf (stderr, "asn1Parser: file %s was not found\n", inputFileName);
break;
case ASN1_SYNTAX_ERROR:
case ASN1_IDENTIFIER_NOT_FOUND:
case ASN1_NAME_TOO_LONG:
fprintf (stderr, "asn1Parser: %s\n", errorDescription);
break;
default:
fprintf (stderr, "libtasn1 ERROR: %s\n", asn1_strerror (parse_result));
}
free (inputFileName);
free (outputFileName);
free (vectorName);
if (parse_result != ASN1_SUCCESS)
exit (1);
exit (0);
}
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