1 /*
2 * Translate error code to error string
3 *
4 * Copyright The Mbed TLS Contributors
5 * SPDX-License-Identifier: Apache-2.0
6 *
7 * Licensed under the Apache License, Version 2.0 (the "License"); you may
8 * not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
15 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 */
19
20 #include "mbedtls/build_info.h"
21
22 #include "mbedtls/platform.h"
23
24 #if defined(MBEDTLS_ERROR_C) || defined(MBEDTLS_ERROR_STRERROR_DUMMY)
25 #include "mbedtls/error.h"
26
27 #include <stdio.h>
28 #include <stdlib.h>
29 #include <string.h>
30 #endif
31
32 #define USAGE \
33 "\n usage: strerror <errorcode>\n" \
34 "\n where <errorcode> can be a decimal or hexadecimal (starts with 0x or -0x)\n"
35
36 #if !defined(MBEDTLS_ERROR_C) && !defined(MBEDTLS_ERROR_STRERROR_DUMMY)
main(void)37 int main(void)
38 {
39 mbedtls_printf("MBEDTLS_ERROR_C and/or MBEDTLS_ERROR_STRERROR_DUMMY not defined.\n");
40 mbedtls_exit(0);
41 }
42 #else
main(int argc,char * argv[])43 int main(int argc, char *argv[])
44 {
45 long int val;
46 char *end = argv[1];
47
48 if (argc != 2) {
49 mbedtls_printf(USAGE);
50 mbedtls_exit(0);
51 }
52
53 val = strtol(argv[1], &end, 10);
54 if (*end != '\0') {
55 val = strtol(argv[1], &end, 16);
56 if (*end != '\0') {
57 mbedtls_printf(USAGE);
58 return 0;
59 }
60 }
61 if (val > 0) {
62 val = -val;
63 }
64
65 if (val != 0) {
66 char error_buf[200];
67 mbedtls_strerror(val, error_buf, 200);
68 mbedtls_printf("Last error was: -0x%04x - %s\n\n", (unsigned int) -val, error_buf);
69 }
70
71 mbedtls_exit(val);
72 }
73 #endif /* MBEDTLS_ERROR_C */
74
