Rename sbdump to dumpexfat.

1 files changed, 95 insertions, 0 deletions

diff --git a/dump/main.c b/dump/main.c
new file mode 100644
index 0000000..249b31f
--- /dev/null
+++ b/dump/main.c
@@ -0,0 +1,95 @@
+/*
+	main.c (08.11.10)
+	Prints detailed information about exFAT volume.
+
+	Copyright (C) 2010  Andrew Nayenko
+
+	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 3 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, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <fcntl.h>
+#include <unistd.h>
+#include <inttypes.h>
+#include <stdio.h>
+#include <string.h>
+#include <exfat.h>
+
+static void dump_sb(const struct exfat_super_block* sb)
+{
+	printf("First block               %8"PRIu64"\n",
+			le64_to_cpu(sb->block_start));
+	printf("Blocks count              %8"PRIu64"\n",
+			le64_to_cpu(sb->block_count));
+	printf("FAT first block           %8u\n",
+			le32_to_cpu(sb->fat_block_start));
+	printf("FAT blocks count          %8u\n",
+			le32_to_cpu(sb->fat_block_count));
+	printf("First cluster block       %8u\n",
+			le32_to_cpu(sb->cluster_block_start));
+	printf("Clusters count            %8u\n",
+			le32_to_cpu(sb->cluster_count));
+	printf("Root directory cluster    %8u\n",
+			le32_to_cpu(sb->rootdir_cluster));
+	printf("Volume serial number    0x%08x\n",
+			le32_to_cpu(sb->volume_serial));
+	printf("FS version                     %hhu.%hhu\n",
+			sb->version.major, sb->version.minor);
+	printf("Volume state                0x%04hx\n",
+			le16_to_cpu(sb->volume_state));
+	printf("Block size                %8u\n",
+			BLOCK_SIZE(*sb));
+	printf("Cluster size              %8u\n",
+			CLUSTER_SIZE(*sb));
+	printf("FATs count                %8hhu\n",
+			sb->fat_count);
+	printf("Drive number                  0x%02hhx\n",
+			sb->drive_no);
+	printf("Allocated space           %7hhu%%\n",
+			sb->allocated_percent);
+}
+
+int main(int argc, char* argv[])
+{
+	int fd;
+	struct exfat_super_block sb;
+
+	if (argc != 2)
+	{
+		fprintf(stderr, "Usage: %s <device>\n", argv[0]);
+		return 1;
+	}
+
+	fd = open(argv[1], O_RDONLY);
+	if (fd < 0)
+	{
+		fprintf(stderr, "failed to open `%s'\n", argv[1]);
+		return 1;
+	}
+	if (read(fd, &sb, sizeof(struct exfat_super_block))
+			!= sizeof(struct exfat_super_block))
+	{
+		close(fd);
+		fprintf(stderr, "failed to read from `%s'.\n", argv[1]);
+		return 1;
+	}
+	if (memcmp(sb.oem_name, "EXFAT   ", sizeof(sb.oem_name)) != 0)
+	{
+		close(fd);
+		fprintf(stderr, "exFAT file system is not found on `%s'.\n", argv[1]);
+		return 1;
+	}
+	dump_sb(&sb);
+	close(fd);
+	return 0;
+}