commit ffe0008969c4b2aacd3f40ffc7e07cc980b53f96
Author: Elan Ruusamäe <[email protected]>
Date: Thu Feb 21 00:29:46 2013 +0200
program to turn off journaling. use at your own risk
taken from here:
http://panoskrt.wordpress.com/2012/11/21/hfs-on-linux/
journalling_off.c | 54 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 54 insertions(+)
---
diff --git a/journalling_off.c b/journalling_off.c
new file mode 100644
index 0000000..4d6ab3d
--- /dev/null
+++ b/journalling_off.c
@@ -0,0 +1,54 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/mman.h>
+#include <fcntl.h>
+#include <byteswap.h>
+
+
+
+int main(int argc, char *argv[])
+{
+ int fd = open(argv[1], O_RDWR);
+ if(fd < 0) {
+ perror("open");
+ return -1;
+ }
+
+ unsigned char *buffer = (unsigned char *)mmap(NULL, 2048,
PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
+ if(buffer == (unsigned char*)0xffffffff) {
+ perror("mmap");
+ return -1;
+ }
+
+ if((buffer[1024] != 'H') && (buffer[1025] != '+')) {
+ fprintf(stderr, "%s: HFS+ signature not found -- aborting.\n",
argv[0]);
+ return -1;
+ }
+
+ unsigned long attributes = *(unsigned long *)(&buffer[1028]);
+ attributes = bswap_32(attributes);
+ printf("attributes = 0x%8.8lx\n", attributes);
+
+ if(!(attributes & 0x00002000)) {
+ printf("kHFSVolumeJournaledBit not currently set in the volume
attributes field.\n");
+ }
+
+ attributes &= 0xffffdfff;
+ attributes = bswap_32(attributes);
+ *(unsigned long *)(&buffer[1028]) = attributes;
+
+ buffer[1032] = '1';
+ buffer[1033] = '0';
+ buffer[1034] = '.';
+ buffer[1035] = '0';
+
+ buffer[1036] = 0;
+ buffer[1037] = 0;
+ buffer[1038] = 0;
+ buffer[1039] = 0;
+
+ printf("journal has been disabled.\n");
+ return 0;
+}
\ No newline at end of file
================================================================
---- gitweb:
http://git.pld-linux.org/gitweb.cgi/packages/hfsplus-tools.git/commitdiff/ffe0008969c4b2aacd3f40ffc7e07cc980b53f96
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