mbedtls/programs/util/strerror.c
Krzysztof Stachowiak a08652233d Unify the example programs' termination
This is done to account for platforms, for which we want custom behavior
upon the program termination, hence we call `mbedtls_exit()` instead of
returning from `main()`.

For the sake of consistency, introduces the modifications have been made
to the test and utility examples as well. These, while less likely to be
used in the low level environments, won't suffer from such a change.
2020-05-11 22:20:32 +02:00

95 lines
2.3 KiB
C

/*
* Translate error code to error string
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#include <stdlib.h>
#define mbedtls_printf printf
#define mbedtls_exit exit
#endif
#if defined(MBEDTLS_ERROR_C) || defined(MBEDTLS_ERROR_STRERROR_DUMMY)
#include "mbedtls/error.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#endif
#define USAGE \
"\n usage: strerror <errorcode>\n" \
"\n where <errorcode> can be a decimal or hexadecimal (starts with 0x or -0x)\n"
#if !defined(MBEDTLS_ERROR_C) && !defined(MBEDTLS_ERROR_STRERROR_DUMMY)
int main( void )
{
mbedtls_printf("MBEDTLS_ERROR_C and/or MBEDTLS_ERROR_STRERROR_DUMMY not defined.\n");
mbedtls_exit( 0 );
}
#else
int main( int argc, char *argv[] )
{
long int val;
char *end = argv[1];
if( argc != 2 )
{
mbedtls_printf( USAGE );
mbedtls_exit( 0 );
}
val = strtol( argv[1], &end, 10 );
if( *end != '\0' )
{
val = strtol( argv[1], &end, 16 );
if( *end != '\0' )
{
mbedtls_printf( USAGE );
return( 0 );
}
}
if( val > 0 )
val = -val;
if( val != 0 )
{
char error_buf[200];
mbedtls_strerror( val, error_buf, 200 );
mbedtls_printf("Last error was: -0x%04x - %s\n\n", (int) -val, error_buf );
}
#if defined(_WIN32)
mbedtls_printf( " + Press Enter to exit this program.\n" );
fflush( stdout ); getchar();
#endif
mbedtls_exit( val );
}
#endif /* MBEDTLS_ERROR_C */