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/*-
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2022 Cameron Katri. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY CAMERON KATRI AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL CAMERON KATRI OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <errno.h>
#include <getopt.h>
#include <limits.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sysexits.h>
#include "trustcache.h"
int
main(int argc, char **argv)
{
if (argc < 2) {
help:
fprintf(stderr, "Usage: trustcache append [-f flags] [-u uuid | 0] infile file ...\n"
" trustcache create [-u uuid] [-v version] outfile file ...\n"
" trustcache info [-c] [-h] [-e entrynum] file\n"
" trustcache remove [-k] file hash ...\n\n"
"See trustcache(1) for more information\n");
exit(1);
}
int ret = 1;
if (strcmp(argv[1], "info") == 0)
ret = tcinfo(argc - 1, argv + 1);
else if (strcmp(argv[1], "create") == 0)
ret = tccreate(argc - 1, argv + 1);
else if (strcmp(argv[1], "append") == 0)
ret = tcappend(argc - 1, argv + 1);
else if (strcmp(argv[1], "remove") == 0)
ret = tcremove(argc - 1, argv + 1);
else
fprintf(stderr, "Unknown subcommand %s\n", argv[1]);
if (ret == -1)
goto help;
return ret;
}
struct trust_cache
opentrustcache(const char *path)
{
FILE *f;
struct trust_cache cache;
if ((f = fopen(path, "r")) == NULL) {
fprintf(stderr, "%s: %s\n", path, strerror(errno));
exit(1);
}
fread(&cache, sizeof(struct trust_cache) - sizeof(struct trust_cache_entry1*), 1, f);
cache.version = le32toh(cache.version);
cache.num_entries = le32toh(cache.num_entries);
if (cache.version == 0) {
if ((cache.hashes = calloc(cache.num_entries, sizeof(trust_cache_hash0))) == NULL)
exit(EX_OSERR);
fread(cache.hashes, sizeof(trust_cache_hash0), cache.num_entries, f);
} else if (cache.version == 1) {
if ((cache.entries = calloc(cache.num_entries, sizeof(struct trust_cache_entry1))) == NULL)
exit(EX_OSERR);
fread(cache.entries, sizeof(struct trust_cache_entry1), cache.num_entries, f);
} else if (cache.version == 2) {
if ((cache.entries = calloc(cache.num_entries, sizeof(struct trust_cache_entry2))) == NULL)
exit(EX_OSERR);
fread(cache.entries, sizeof(struct trust_cache_entry2), cache.num_entries, f);
} else {
fprintf(stderr, "%s: Unsupported version %i\n", path, cache.version);
exit(1);
}
fclose(f);
return cache;
}
int
writetrustcache(struct trust_cache cache, const char *path)
{
FILE *f = NULL;
if ((f = fopen(path, "wb")) == NULL) {
fprintf(stderr, "%s: %s\n", path, strerror(errno));
return -1;
}
cache.version = htole32(cache.version);
cache.num_entries = htole32(cache.num_entries);
fwrite(&cache, sizeof(struct trust_cache) - sizeof(struct trust_cache_entry1*), 1, f);
cache.version = le32toh(cache.version);
cache.num_entries = le32toh(cache.num_entries);
for (uint32_t i = 0; i < cache.num_entries; i++) {
if (cache.version == 0)
fwrite(&cache.hashes[i], sizeof(trust_cache_hash0), 1, f);
else if (cache.version == 1)
fwrite(&cache.entries[i], sizeof(struct trust_cache_entry1), 1, f);
else if (cache.version == 2)
fwrite(&cache.entries2[i], sizeof(struct trust_cache_entry2), 1, f);
}
fclose(f);
return 0;
}
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