command: rename digest.c to hashsum.c

as I'll add a new generic command named digest

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 233 insertions, 0 deletions

diff --git a/commands/hashsum.c b/commands/hashsum.c
new file mode 100644
index 0000000000..59c94ea2bf
--- /dev/null
+++ b/commands/hashsum.c
@@ -0,0 +1,233 @@
+/*
+ * digest.c - Calculate a md5/sha1/sha256 checksum of a memory area
+ *
+ * Copyright (c) 2011 Peter Korsgaard <jacmet@sunsite.dk>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * 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.
+ *
+ */
+
+#include <common.h>
+#include <command.h>
+#include <fs.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <xfuncs.h>
+#include <malloc.h>
+#include <digest.h>
+#include <getopt.h>
+
+static int do_digest(char *algorithm, int argc, char *argv[])
+{
+	struct digest *d;
+	int ret = 0;
+	int i;
+	unsigned char *hash;
+	unsigned char *key = NULL;
+	size_t keylen = 0;
+	int opt;
+
+	while((opt = getopt(argc, argv, "h:")) > 0) {
+		switch(opt) {
+		case 'h':
+			key = optarg;
+			keylen = strlen(key);
+			break;
+		}
+	}
+
+	argc -= optind;
+	argv += optind;
+
+	if (key) {
+		char *tmp = asprintf("hmac(%s)", algorithm);
+		d = digest_alloc(tmp);
+		BUG_ON(!d);
+		ret = digest_set_key(d, key, keylen);
+		free(tmp);
+		if (ret) {
+			perror("set_key");
+			goto err;
+		}
+	} else {
+		d = digest_alloc(algorithm);
+		BUG_ON(!d);
+	}
+
+	if (argc < 1)
+		return COMMAND_ERROR_USAGE;
+
+	hash = calloc(digest_length(d), sizeof(unsigned char));
+	if (!hash) {
+		perror("calloc");
+		return COMMAND_ERROR_USAGE;
+	}
+
+	while (*argv) {
+		char *filename = "/dev/mem";
+		loff_t start = 0, size = ~0;
+
+		/* arguments are either file, file+area or area */
+		if (parse_area_spec(*argv, &start, &size)) {
+			filename = *argv;
+			if (argv[0] && !parse_area_spec(argv[0], &start, &size))
+				argv++;
+		}
+
+		ret = digest_file_window(d, filename,
+					 hash, start, size);
+		if (ret < 0) {
+			ret = 1;
+		} else {
+			for (i = 0; i < digest_length(d); i++)
+				printf("%02x", hash[i]);
+
+			printf("  %s\t0x%08llx ... 0x%08llx\n",
+				filename, start, start + size);
+		}
+
+		argv++;
+	}
+
+err:
+	free(hash);
+	digest_free(d);
+
+	return ret;
+}
+
+#ifdef CONFIG_CMD_MD5SUM
+
+static int do_md5(int argc, char *argv[])
+{
+	return do_digest("md5", argc, argv);
+}
+
+BAREBOX_CMD_HELP_START(md5sum)
+BAREBOX_CMD_HELP_TEXT("Calculate a MD5 digest over a FILE or a memory area.")
+BAREBOX_CMD_HELP_END
+
+BAREBOX_CMD_START(md5sum)
+	.cmd		= do_md5,
+	BAREBOX_CMD_DESC("calculate MD5 checksum")
+	BAREBOX_CMD_OPTS("FILE|AREA...")
+	BAREBOX_CMD_GROUP(CMD_GRP_FILE)
+	BAREBOX_CMD_HELP(cmd_md5sum_help)
+BAREBOX_CMD_END
+
+#endif /* CMD_CMD_MD5SUM */
+
+#ifdef CONFIG_CMD_SHA1SUM
+
+static int do_sha1(int argc, char *argv[])
+{
+	return do_digest("sha1", argc, argv);
+}
+
+BAREBOX_CMD_HELP_START(sha1sum)
+BAREBOX_CMD_HELP_TEXT("Calculate a SHA1 digest over a FILE or a memory area.")
+BAREBOX_CMD_HELP_END
+
+BAREBOX_CMD_START(sha1sum)
+	.cmd		= do_sha1,
+	BAREBOX_CMD_DESC("calculate SHA1 digest")
+	BAREBOX_CMD_OPTS("FILE|AREA")
+	BAREBOX_CMD_GROUP(CMD_GRP_FILE)
+	BAREBOX_CMD_HELP(cmd_sha1sum_help)
+BAREBOX_CMD_END
+
+#endif /* CMD_CMD_SHA1SUM */
+
+#ifdef CONFIG_CMD_SHA224SUM
+
+static int do_sha224(int argc, char *argv[])
+{
+	return do_digest("sha224", argc, argv);
+}
+
+BAREBOX_CMD_HELP_START(sha224sum)
+BAREBOX_CMD_HELP_TEXT("Calculate a SHA224 digest over a FILE or a memory area.")
+BAREBOX_CMD_HELP_END
+
+BAREBOX_CMD_START(sha224sum)
+	.cmd		= do_sha224,
+	BAREBOX_CMD_DESC("calculate SHA224 digest")
+	BAREBOX_CMD_OPTS("FILE|AREA")
+	BAREBOX_CMD_GROUP(CMD_GRP_FILE)
+	BAREBOX_CMD_HELP(cmd_sha224sum_help)
+BAREBOX_CMD_END
+
+#endif /* CMD_CMD_SHA224SUM */
+
+#ifdef CONFIG_CMD_SHA256SUM
+
+static int do_sha256(int argc, char *argv[])
+{
+	return do_digest("sha256", argc, argv);
+}
+
+BAREBOX_CMD_HELP_START(sha256sum)
+BAREBOX_CMD_HELP_TEXT("Calculate a SHA256 digest over a FILE or a memory area.")
+BAREBOX_CMD_HELP_END
+
+BAREBOX_CMD_START(sha256sum)
+	.cmd		= do_sha256,
+	BAREBOX_CMD_DESC("calculate SHA256 digest")
+	BAREBOX_CMD_OPTS("FILE|AREA")
+	BAREBOX_CMD_GROUP(CMD_GRP_FILE)
+	BAREBOX_CMD_HELP(cmd_sha256sum_help)
+BAREBOX_CMD_END
+
+#endif /* CMD_CMD_SHA256SUM */
+
+#ifdef CONFIG_CMD_SHA384SUM
+
+static int do_sha384(int argc, char *argv[])
+{
+	return do_digest("sha384", argc, argv);
+}
+
+BAREBOX_CMD_HELP_START(sha384sum)
+BAREBOX_CMD_HELP_TEXT("Calculate a SHA384 digest over a FILE or a memory area.")
+BAREBOX_CMD_HELP_END
+
+BAREBOX_CMD_START(sha384sum)
+	.cmd		= do_sha384,
+	BAREBOX_CMD_DESC("calculate SHA384 digest")
+	BAREBOX_CMD_OPTS("FILE|AREA")
+	BAREBOX_CMD_GROUP(CMD_GRP_FILE)
+	BAREBOX_CMD_HELP(cmd_sha384sum_help)
+BAREBOX_CMD_END
+
+#endif /* CMD_CMD_SHA384SUM */
+
+#ifdef CONFIG_CMD_SHA512SUM
+
+static int do_sha512(int argc, char *argv[])
+{
+	return do_digest("sha512", argc, argv);
+}
+
+BAREBOX_CMD_HELP_START(sha512sum)
+BAREBOX_CMD_HELP_TEXT("Calculate a SHA512 digest over a FILE or a memory area.")
+BAREBOX_CMD_HELP_END
+
+BAREBOX_CMD_START(sha512sum)
+	.cmd		= do_sha512,
+	BAREBOX_CMD_DESC("calculate SHA512 digest")
+	BAREBOX_CMD_OPTS("FILE|AREA")
+	BAREBOX_CMD_GROUP(CMD_GRP_FILE)
+	BAREBOX_CMD_HELP(cmd_sha512sum_help)
+BAREBOX_CMD_END
+
+#endif /* CMD_CMD_SHA512SUM */