1 files changed, 98 insertions, 0 deletions
diff --git a/tc.c b/tc.c
new file mode 100644
index 0000000..f6cc759
--- /dev/null
+++ b/tc.c
@@ -0,0 +1,98 @@
+/*-
+ * 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: tc append [-u uuid | 0] infile file ...\n"
+										"       tc create [-u uuid] [-v version] outfile file ...\n"
+										"       tc info [-c] [-h] [-e entrynum] file\n\n"
+										"See tc(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
+		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 {
+		fprintf(stderr, "%s: Unsupported version %i\n", path, cache.version);
+		exit(1);
+	}
+
+	fclose(f);
+	return cache;
+}