Initial import

1 files changed, 162 insertions, 0 deletions

diff --git a/info.c b/info.c
new file mode 100644
index 0000000..c676586
--- /dev/null
+++ b/info.c
@@ -0,0 +1,162 @@
+/*-
+ * 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 <getopt.h>
+#include <limits.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "trustcache.h"
+
+void print_header(struct trust_cache cache);
+void print_hash(uint8_t cdhash[CS_CDHASH_LEN], bool newline);
+void print_entry(struct trust_cache_entry1 entry);
+void print_entries(struct trust_cache cache);
+
+int
+tcinfo(int argc, char **argv)
+{
+	struct trust_cache cache;
+	bool headeronly = false, onlyhash = false;
+	int entrynum = -1;
+	const char *errstr = NULL;
+
+	int ch;
+	while ((ch = getopt(argc, argv, "che:")) != -1) {
+		switch (ch) {
+			case 'h':
+				headeronly = true;
+				break;
+			case 'e':
+				entrynum = strtonum(optarg, 1, INT_MAX, &errstr);
+				if (errstr != NULL) {
+					fprintf(stderr, "entry number is %s: %s\n", errstr, optarg);
+					exit(1);
+				}
+				break;
+			case 'c':
+				onlyhash = true;
+				break;
+		}
+	}
+
+	argc -= optind;
+	argv += optind;
+
+	if (argc == 0) {
+		return -1;
+	}
+
+	cache = opentrustcache(argv[0]);
+
+	if (entrynum == -1 && !onlyhash)
+		print_header(cache);
+	if (!headeronly) {
+		if (onlyhash) {
+			for (int i = 0; i < cache.num_entries; i++) {
+				if (cache.version == 0)
+					print_hash(cache.hashes[i], true);
+				else
+					print_hash(cache.entries[i].cdhash, true);
+			}
+			goto done;
+		}
+		if (entrynum != -1) {
+			if (entrynum > cache.num_entries) {
+				fprintf(stderr, "no entry %i\n", entrynum);
+				exit(1);
+			}
+			if (cache.version == 1) {
+				print_entry(cache.entries[entrynum - 1]);
+			} else if (cache.version == 0) {
+				print_hash(cache.hashes[entrynum - 1], true);
+			}
+		} else {
+			print_entries(cache);
+		}
+	}
+
+done:
+	free(cache.entries);
+
+	return 0;
+}
+
+void
+print_header(struct trust_cache cache)
+{
+	printf("version = %i\n", cache.version);
+	char out[37];
+	uuid_unparse(cache.uuid, out);
+	printf("uuid = %s\n", out);
+	printf("entry count = %i\n", cache.num_entries);
+}
+
+void
+print_entries(struct trust_cache cache)
+{
+	for (int i = 0; i < cache.num_entries; i++) {
+		if (cache.version == 0)
+			print_hash(cache.hashes[i], true);
+		else if (cache.version == 1)
+			print_entry(cache.entries[i]);
+	}
+}
+
+void
+print_entry(struct trust_cache_entry1 entry)
+{
+	print_hash(entry.cdhash, false);
+
+	switch (entry.flags) {
+		case CS_TRUST_CACHE_AMFID:
+			printf(" CS_TRUST_CACHE_AMFID ");
+			break;
+		case CS_TRUST_CACHE_ANE:
+			printf(" CS_TRUST_CACHE_ANE ");
+			break;
+		case CS_TRUST_CACHE_AMFID|CS_TRUST_CACHE_ANE:
+			printf(" CS_TRUST_CACHE_AMFID|CS_TRUST_CACHE_ANE ");
+			break;
+		default:
+			printf(" [none] ");
+			break;
+	}
+
+	printf("[%i]\n", entry.hash_type);
+}
+
+void
+print_hash(uint8_t cdhash[CS_CDHASH_LEN], bool newline)
+{
+	for (int j = 0; j < CS_CDHASH_LEN; j++) {
+		printf("%02x", cdhash[j]);
+	}
+	if (newline)
+		printf("\n");
+}