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authorMaurus Cuelenaere <mcuelenaere@gmail.com>2008-08-07 10:24:11 +0000
committerMaurus Cuelenaere <mcuelenaere@gmail.com>2008-08-07 10:24:11 +0000
commitc8bdcbf8ff7892011a084b4b6d6f35a75248e724 (patch)
tree86e94d539e1aecf40795a3406292866dab4deda5 /utils/jz4740_tools/IHFSsplit.c
parent99f68ea7e8d288a7c7c31bff685168b8b4632c0d (diff)
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jz4740 utilities:
* Fix TABs problem * Add IHFSsplit made by William Poetra Yoga Hadisoeseno * Fix compilation warnings git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18206 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'utils/jz4740_tools/IHFSsplit.c')
-rw-r--r--utils/jz4740_tools/IHFSsplit.c195
1 files changed, 195 insertions, 0 deletions
diff --git a/utils/jz4740_tools/IHFSsplit.c b/utils/jz4740_tools/IHFSsplit.c
new file mode 100644
index 0000000000..1f90a50007
--- /dev/null
+++ b/utils/jz4740_tools/IHFSsplit.c
@@ -0,0 +1,195 @@
+/***************************************************************************
+ * __________ __ ___.
+ * Open \______ \ ____ ____ | | _\_ |__ _______ ___
+ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
+ * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
+ * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
+ * \/ \/ \/ \/ \/
+ * $Id$
+ *
+ * Copyright (C) 2008 by William Poetra Yoga Hadisoeseno
+ *
+ * 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 2
+ * of the License, or (at your option) any later version.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <libgen.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+void usage()
+{
+ fprintf(stderr, "usage: IHFSsplit <ihfs_img> <output_dir>\n");
+ exit(1);
+}
+
+typedef struct {
+ uint32_t signature;
+ uint32_t fslen;
+ uint32_t unknown1;
+ uint32_t unknown2;
+ char timestamp[12];
+ uint32_t numfiles;
+ char zeros[476];
+ uint32_t marker;
+} ihfs_header_t;
+
+#define MAX_FILES 2048
+#define MAX_IHFS_PATH 56
+
+typedef struct {
+ struct {
+ char fullpath[MAX_IHFS_PATH];
+ uint32_t sector;
+ uint32_t length;
+ } files[MAX_FILES];
+} ihfs_file_table_t;
+
+#define SECTOR_SIZE 512
+
+int ihfs_sanity(const int ihfs_img)
+{
+ struct stat statbuf;
+ ihfs_header_t ihfs_hdr;
+
+ printf("starting sanity check for IHFS image...\n");
+
+ lseek(ihfs_img, 0, SEEK_SET);
+ read(ihfs_img, &ihfs_hdr, sizeof (ihfs_hdr));
+
+ printf(" checking for IHFS signature...\n");
+ if (ihfs_hdr.signature != 0x49484653)
+ return 1;
+
+ printf(" checking for FS length...\n");
+ fstat(ihfs_img, &statbuf);
+ if (ihfs_hdr.fslen * SECTOR_SIZE != statbuf.st_size)
+ return 1;
+
+ printf(" checking for unknown value 1...\n");
+ if (ihfs_hdr.unknown1 != 0x00000004)
+ return 1;
+
+ printf(" checking for unknown value 2...\n");
+ if (ihfs_hdr.unknown2 != 0xfffff000)
+ return 1;
+
+ printf(" checking for number of files...\n");
+ if (ihfs_hdr.numfiles > MAX_FILES)
+ return 1;
+
+ printf(" checking for marker...\n");
+ if (ihfs_hdr.marker != 0x55aa55aa)
+ return 1;
+
+ return 0;
+}
+
+void mkdir_p(const char *path)
+{
+ char *dir;
+
+ dir = dirname(strdup(path));
+ if (strchr(dir, '/'))
+ mkdir_p(dir);
+
+ mkdir(dir, 0755);
+}
+
+#define BUF_SIZE 4096
+
+void outputfile(const char *outpath, const int ihfs_img, const int offset, const int length)
+{
+ int outfd;
+ int i, rem;
+ char buf[BUF_SIZE];
+
+ lseek(ihfs_img, offset, SEEK_SET);
+
+ outfd = creat(outpath, 0644);
+
+ for (i = 0; i < length / BUF_SIZE; ++i) {
+ read(ihfs_img, buf, BUF_SIZE);
+ write(outfd, buf, BUF_SIZE);
+ }
+ rem = length - i * BUF_SIZE;
+ if (rem > 0) {
+ read(ihfs_img, buf, rem);
+ write(outfd, buf, rem);
+ }
+
+ close(outfd);
+}
+
+int main(int argc, char **argv)
+{
+ struct stat statbuf;
+ int ihfs_img;
+ ihfs_header_t ihfs_hdr;
+ ihfs_file_table_t ihfs_ftbl;
+ int i, j;
+ char *outpath, *base_path, ihfs_path[MAX_IHFS_PATH+1];
+
+ /* check the arguments */
+
+ if (argc != 3)
+ usage();
+
+ stat(argv[1], &statbuf);
+ if (!S_ISREG(statbuf.st_mode))
+ usage();
+
+ stat(argv[2], &statbuf);
+ if (!S_ISDIR(statbuf.st_mode))
+ usage();
+
+ /* check the file, then split */
+
+ ihfs_img = open(argv[1], O_RDONLY);
+
+ if (ihfs_sanity(ihfs_img)) {
+ printf("Non-IHFS format!\n");
+ return 1;
+ } else
+ printf("sanity check OK\n");
+
+ lseek(ihfs_img, 0, SEEK_SET);
+ read(ihfs_img, &ihfs_hdr, sizeof (ihfs_hdr));
+ lseek(ihfs_img, 4 * SECTOR_SIZE, SEEK_SET);
+ read(ihfs_img, &ihfs_ftbl, sizeof (ihfs_ftbl));
+
+ base_path = strdup(argv[2]);
+ outpath = malloc(strlen(base_path) + 1 + MAX_IHFS_PATH + 1);
+ for (i = 0; i < ihfs_hdr.numfiles; ++i) {
+ printf("\n");
+ printf("pathname: %s\n", ihfs_ftbl.files[i].fullpath);
+ printf("starts at sector %d, length is %d bytes\n", ihfs_ftbl.files[i].sector, ihfs_ftbl.files[i].length);
+
+ strncpy(ihfs_path, ihfs_ftbl.files[i].fullpath, MAX_IHFS_PATH);
+ ihfs_path[MAX_IHFS_PATH] = '\0';
+ for (j = 0; j < strlen(ihfs_path); ++j)
+ if (ihfs_path[j] == '\\')
+ ihfs_path[j] = '/';
+
+ sprintf(outpath, "%s/%s", base_path, ihfs_path);
+ mkdir_p(outpath);
+ outputfile(outpath, ihfs_img, ihfs_ftbl.files[i].sector * SECTOR_SIZE, ihfs_ftbl.files[i].length);
+ }
+ free(outpath);
+
+ close(ihfs_img);
+
+ return 0;
+} \ No newline at end of file