Server : Apache/2.4.41 (Ubuntu) System : Linux absol.cf 5.4.0-198-generic #218-Ubuntu SMP Fri Sep 27 20:18:53 UTC 2024 x86_64 User : www-data ( 33) PHP Version : 7.4.33 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals,pcntl_unshare, Directory : /usr/share/doc/libtasn1-6-dev/examples/
Upload File :
Current File : //usr/share/doc/libtasn1-6-dev/examples/asn1Coding.c
/* asn1Coding.c --- program to generate a DER coding of an ASN1 definition.
* 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 "asn1Coding"
/* 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] DEFINITIONS ASSIGNMENTS\n", program_name);
printf ("\
Generates a DER encoding of ASN.1 DEFINITIONS file\n\
and ASSIGNMENTS file with value assignments.\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\
-h, --help display this help and exit\n\
-v, --version output version information and exit\n");
printf ("Report bugs to "PACKAGE_BUGREPORT);
}
exit (status);
}
#define ASSIGNMENT_SUCCESS 1
#define ASSIGNMENT_ERROR 2
#define ASSIGNMENT_EOF 3
static int
readAssignment (FILE * file, char *varName, char *value)
{
int ret;
ret = fscanf (file, "%s", varName);
if (ret == EOF)
return ASSIGNMENT_EOF;
if (!strcmp (varName, "''"))
varName[0] = 0;
ret = fscanf (file, "%s", value);
if (ret == EOF)
return ASSIGNMENT_ERROR;
return ASSIGNMENT_SUCCESS;
}
static void
createFileName (char *inputFileName, char **outputFileName)
{
char *char_p, *slash_p, *dot_p;
/* searching the last '/' and '.' in inputFileAssignmentName */
char_p = inputFileName;
slash_p = inputFileName;
while ((char_p = strchr (char_p, '/')))
{
char_p++;
slash_p = char_p;
}
char_p = slash_p;
dot_p = inputFileName + strlen (inputFileName);
while ((char_p = strchr (char_p, '.')))
{
dot_p = char_p;
char_p++;
}
/* outputFileName= inputFileName + .out */
*outputFileName = (char *) malloc (dot_p - inputFileName + 1 +
strlen (".out"));
if (*outputFileName == NULL)
{
fprintf(stderr, "Memory error\n");
exit(1);
}
memcpy (*outputFileName, inputFileName, dot_p - inputFileName);
(*outputFileName)[dot_p - inputFileName] = 0;
strcat (*outputFileName, ".out");
return;
}
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'},
{0, 0, 0, 0}
};
int option_index = 0;
int option_result;
char *outputFileName = NULL;
char *inputFileAsnName = NULL;
char *inputFileAssignmentName = NULL;
int checkSyntaxOnly = 0;
asn1_node definitions = NULL;
asn1_node structure = NULL;
char errorDescription[ASN1_MAX_ERROR_DESCRIPTION_SIZE];
int asn1_result = ASN1_SUCCESS;
FILE *outputFile;
FILE *inputFile;
char varName[1024];
char value[1024];
unsigned char *der = NULL;
int der_len;
int k;
int last_ra;
opterr = 0; /* disable error messages from getopt */
while (1)
{
option_result =
getopt_long (argc, argv, "hvco:", long_options, &option_index);
if (option_result == -1)
break;
switch (option_result)
{
case 'h': /* HELP */
free (outputFileName);
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);
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 '?': /* UNKNOW OPTION */
free (outputFileName);
fprintf (stderr,
"asn1Coding: option '%s' not recognized or without argument.\n\n",
argv[optind - 1]);
usage (EXIT_FAILURE);
break;
default:
fprintf (stderr,
"asn1Coding: ?? getopt returned character code Ox%x ??\n",
(unsigned)option_result);
}
}
if (optind == argc || optind == argc - 1)
{
free (outputFileName);
fputs ("asn1Coding: input files missing\n", stderr);
usage (EXIT_FAILURE);
}
inputFileAsnName = strdup(argv[optind]);
if (inputFileAsnName == NULL)
{
fprintf(stderr, "Memory error\n");
exit(1);
}
inputFileAssignmentName = strdup(argv[optind+1]);
if (inputFileAssignmentName == NULL)
{
fprintf(stderr, "Memory error\n");
exit(1);
}
asn1_result =
asn1_parser2tree (inputFileAsnName, &definitions, errorDescription);
switch (asn1_result)
{
case ASN1_SUCCESS:
fputs ("Parse: done.\n", stderr);
break;
case ASN1_FILE_NOT_FOUND:
fprintf (stderr, "asn1Coding: FILE %s NOT FOUND\n", inputFileAsnName);
break;
case ASN1_SYNTAX_ERROR:
case ASN1_IDENTIFIER_NOT_FOUND:
case ASN1_NAME_TOO_LONG:
fprintf (stderr, "asn1Coding: %s\n", errorDescription);
break;
default:
fprintf (stderr, "libtasn1 ERROR: %s\n", asn1_strerror (asn1_result));
}
if (asn1_result != ASN1_SUCCESS)
{
free (inputFileAsnName);
free (inputFileAssignmentName);
exit (1);
}
inputFile = fopen (inputFileAssignmentName, "r");
if (inputFile == NULL)
{
fprintf (stderr, "asn1Coding: file '%s' not found\n",
inputFileAssignmentName);
free (inputFileAsnName);
free (inputFileAssignmentName);
exit (1);
}
putc ('\n', stderr);
while ((last_ra = readAssignment (inputFile, varName, value))
== ASSIGNMENT_SUCCESS)
{
fprintf (stderr, "var=%s, value=%s\n", varName, value);
if (structure == NULL)
{
asn1_result = asn1_create_element (definitions, value, &structure);
}
else
{
if (strcmp(value, "(NULL)") == 0)
asn1_result = asn1_write_value (structure, varName, NULL, 0);
else
asn1_result = asn1_write_value (structure, varName, value, 0);
}
if (asn1_result != ASN1_SUCCESS)
{
fprintf (stderr, "libtasn1 ERROR: %s\n",
asn1_strerror (asn1_result));
asn1_delete_structure (&definitions);
asn1_delete_structure (&structure);
free (inputFileAsnName);
free (inputFileAssignmentName);
fclose (inputFile);
exit (1);
}
}
if (last_ra != ASSIGNMENT_EOF)
{
fprintf (stderr, "asn1Coding: error reading assignment file\n");
exit (1);
}
fclose (inputFile);
putc ('\n', stderr);
asn1_print_structure (stderr, structure, "", ASN1_PRINT_NAME_TYPE_VALUE);
der_len = 0;
asn1_result = asn1_der_coding (structure, "", NULL, &der_len,
errorDescription);
if (asn1_result == ASN1_MEM_ERROR)
{
der = malloc (der_len);
if (der == NULL)
{
fprintf(stderr, "Memory error\n");
exit(1);
}
asn1_result = asn1_der_coding (structure, "", der, &der_len,
errorDescription);
}
fprintf (stderr, "\nCoding: %s\n\n", asn1_strerror (asn1_result));
if (asn1_result != ASN1_SUCCESS)
{
fprintf (stderr, "asn1Coding: %s\n", errorDescription);
free (der);
asn1_delete_structure (&definitions);
asn1_delete_structure (&structure);
free (inputFileAsnName);
free (inputFileAssignmentName);
exit (1);
}
/* Print the 'Certificate1' DER encoding */
fprintf (stderr, "-----------------\nNumber of bytes=%i\n", der_len);
for (k = 0; k < der_len; k++)
fprintf (stderr, "%02x ", der[k]);
fputs ("\n-----------------\n", stderr);
asn1_delete_structure (&definitions);
asn1_delete_structure (&structure);
if (!checkSyntaxOnly)
{
if (outputFileName == NULL)
createFileName (inputFileAssignmentName, &outputFileName);
fprintf (stderr, "\nOutputFile=%s\n", outputFileName);
outputFile = fopen (outputFileName, "w");
if (outputFile == NULL)
{
fprintf (stderr,
"asn1Coding: output file '%s' not available\n",
outputFileName);
free (der);
free (inputFileAsnName);
free (inputFileAssignmentName);
free (outputFileName);
exit (1);
}
for (k = 0; k < der_len; k++)
fprintf (outputFile, "%c", der[k]);
fclose (outputFile);
fputs ("\nWriting: done.\n", stderr);
}
free (der);
free (inputFileAsnName);
free (inputFileAssignmentName);
free (outputFileName);
exit (0);
}
Server : Apache/2.4.41 (Ubuntu)