xref: /third_party/mbedtls/programs/x509/req_app.c (revision a8e1175b) 
1/*
2 *  Certificate request reading application
3 *
4 *  Copyright The Mbed TLS Contributors
5 *  SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
6 */
7
8#include "mbedtls/build_info.h"
9
10#include "mbedtls/platform.h"
11
12#if !defined(MBEDTLS_BIGNUM_C) || !defined(MBEDTLS_RSA_C) ||  \
13    !defined(MBEDTLS_X509_CSR_PARSE_C) || !defined(MBEDTLS_FS_IO) || \
14    defined(MBEDTLS_X509_REMOVE_INFO)
15int main(void)
16{
17    mbedtls_printf("MBEDTLS_BIGNUM_C and/or MBEDTLS_RSA_C and/or "
18                   "MBEDTLS_X509_CSR_PARSE_C and/or MBEDTLS_FS_IO not defined and/or "
19                   "MBEDTLS_X509_REMOVE_INFO defined.\n");
20    mbedtls_exit(0);
21}
22#else
23
24#include "mbedtls/x509_csr.h"
25
26#include <stdio.h>
27#include <stdlib.h>
28#include <string.h>
29
30#define DFL_FILENAME            "cert.req"
31#define DFL_DEBUG_LEVEL         0
32
33#define USAGE \
34    "\n usage: req_app param=<>...\n"                   \
35    "\n acceptable parameters:\n"                       \
36    "    filename=%%s         default: cert.req\n"      \
37    "\n"
38
39
40/*
41 * global options
42 */
43struct options {
44    const char *filename;       /* filename of the certificate request  */
45} opt;
46
47int main(int argc, char *argv[])
48{
49    int ret = 1;
50    int exit_code = MBEDTLS_EXIT_FAILURE;
51    unsigned char buf[100000];
52    mbedtls_x509_csr csr;
53    int i;
54    char *p, *q;
55
56    /*
57     * Set to sane values
58     */
59    mbedtls_x509_csr_init(&csr);
60
61#if defined(MBEDTLS_USE_PSA_CRYPTO)
62    psa_status_t status = psa_crypto_init();
63    if (status != PSA_SUCCESS) {
64        mbedtls_fprintf(stderr, "Failed to initialize PSA Crypto implementation: %d\n",
65                        (int) status);
66        goto exit;
67    }
68#endif /* MBEDTLS_USE_PSA_CRYPTO */
69
70    if (argc < 2) {
71usage:
72        mbedtls_printf(USAGE);
73        goto exit;
74    }
75
76    opt.filename            = DFL_FILENAME;
77
78    for (i = 1; i < argc; i++) {
79        p = argv[i];
80        if ((q = strchr(p, '=')) == NULL) {
81            goto usage;
82        }
83        *q++ = '\0';
84
85        if (strcmp(p, "filename") == 0) {
86            opt.filename = q;
87        } else {
88            goto usage;
89        }
90    }
91
92    /*
93     * 1.1. Load the CSR
94     */
95    mbedtls_printf("\n  . Loading the CSR ...");
96    fflush(stdout);
97
98    ret = mbedtls_x509_csr_parse_file(&csr, opt.filename);
99
100    if (ret != 0) {
101        mbedtls_printf(" failed\n  !  mbedtls_x509_csr_parse_file returned %d\n\n", ret);
102        mbedtls_x509_csr_free(&csr);
103        goto exit;
104    }
105
106    mbedtls_printf(" ok\n");
107
108    /*
109     * 1.2 Print the CSR
110     */
111    mbedtls_printf("  . CSR information    ...\n");
112    ret = mbedtls_x509_csr_info((char *) buf, sizeof(buf) - 1, "      ", &csr);
113    if (ret == -1) {
114        mbedtls_printf(" failed\n  !  mbedtls_x509_csr_info returned %d\n\n", ret);
115        mbedtls_x509_csr_free(&csr);
116        goto exit;
117    }
118
119    mbedtls_printf("%s\n", buf);
120
121    exit_code = MBEDTLS_EXIT_SUCCESS;
122
123exit:
124    mbedtls_x509_csr_free(&csr);
125#if defined(MBEDTLS_USE_PSA_CRYPTO)
126    mbedtls_psa_crypto_free();
127#endif /* MBEDTLS_USE_PSA_CRYPTO */
128
129    mbedtls_exit(exit_code);
130}
131#endif /* MBEDTLS_BIGNUM_C && MBEDTLS_RSA_C && MBEDTLS_X509_CSR_PARSE_C &&
132          MBEDTLS_FS_IO */
133