solanum/tools/mkfingerprint.c

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/*
* mkfingerprint.c: Create certificate fingerprints using librb
* Copyright 2016 simon Arlott
*
* 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 2 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
* USA
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include "rb_lib.h"
#include "certfp.h"
int main(int argc, char *argv[])
{
uint8_t certfp[RB_SSL_CERTFP_LEN+1] = { 0 };
const char *method_str;
const char *filename;
int method;
const char *prefix;
int ret;
int i;
if (argc != 3) {
printf("mkfingerprint <method> <filename>\n");
printf(" Valid methods: "
CERTFP_NAME_CERT_SHA1 ", "
CERTFP_NAME_CERT_SHA256 ", "
CERTFP_NAME_CERT_SHA512 ", "
CERTFP_NAME_SPKI_SHA256 ", "
CERTFP_NAME_SPKI_SHA512 "\n");
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return 1;
}
method_str = argv[1];
filename = argv[2];
if (!strcmp(method_str, CERTFP_NAME_CERT_SHA1)) {
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method = RB_SSL_CERTFP_METH_CERT_SHA1;
prefix = CERTFP_PREFIX_CERT_SHA1;
} else if (!strcmp(method_str, CERTFP_NAME_CERT_SHA256)) {
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method = RB_SSL_CERTFP_METH_CERT_SHA256;
prefix = CERTFP_PREFIX_CERT_SHA256;
} else if (!strcmp(method_str, CERTFP_NAME_CERT_SHA512)) {
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method = RB_SSL_CERTFP_METH_CERT_SHA512;
prefix = CERTFP_PREFIX_CERT_SHA512;
} else if (!strcmp(method_str, CERTFP_NAME_SPKI_SHA256)) {
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method = RB_SSL_CERTFP_METH_SPKI_SHA256;
prefix = CERTFP_PREFIX_SPKI_SHA256;
} else if (!strcmp(method_str, CERTFP_NAME_SPKI_SHA512)) {
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method = RB_SSL_CERTFP_METH_SPKI_SHA512;
prefix = CERTFP_PREFIX_SPKI_SHA512;
} else {
printf("Unknown method: %s\n", method_str);
return 1;
}
ret = rb_get_ssl_certfp_file(filename, certfp, method);
if (ret < 0) {
perror(filename);
return 1;
} else if (ret == 0) {
fprintf(stderr, "Unknown error\n");
return 1;
}
printf("%s", prefix);
for (i = 0; i < ret; i++) {
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printf("%02x", certfp[i]);
}
printf("\n");
return 0;
}