mtools/mtools-fat-bits.diff

64 lines
2.0 KiB
Diff

Index: fat.c
===================================================================
--- fat.c.orig
+++ fat.c
@@ -729,6 +729,7 @@ static int fat_32_read(Fs_t *This, union
static int old_fat_read(Fs_t *This, union bootsector *boot,
+ int config_fat_bits,
uint32_t tot_sectors, int nodups)
{
This->writeAllFats = 1;
@@ -743,7 +744,7 @@ static int old_fat_read(Fs_t *This, unio
if(check_media_type(This,boot, tot_sectors))
return -1;
- if(This->num_clus >= FAT12) {
+ if(This->num_clus >= FAT12 || config_fat_bits == 16) {
set_fat16(This);
/* third FAT byte must be 0xff */
if(!mtools_skip_check && readByte(This, 3) != 0xff)
@@ -759,6 +760,7 @@ static int old_fat_read(Fs_t *This, unio
* structures.
*/
int fat_read(Fs_t *This, union bootsector *boot,
+ int fat_bits,
uint32_t tot_sectors, int nodups)
{
This->fat_error = 0;
@@ -769,7 +771,7 @@ int fat_read(Fs_t *This, union bootsecto
This->lastFatSectorData = 0;
if(This->fat_len)
- return old_fat_read(This, boot, tot_sectors, nodups);
+ return old_fat_read(This, boot, fat_bits, tot_sectors, nodups);
else
return fat_32_read(This, boot, tot_sectors);
}
Index: init.c
===================================================================
--- init.c.orig
+++ init.c
@@ -530,7 +530,7 @@ Stream_t *fs_init(char drive, int mode,
}
/* read the FAT sectors */
- if(fat_read(This, &boot, tot_sectors, dev.use_2m&0x7f)){
+ if(fat_read(This, &boot, dev.fat_bits, tot_sectors, dev.use_2m&0x7f)){
fprintf(stderr, "Error reading FAT\n");
This->num_fat = 1;
FREE(&This->Next);
Index: fsP.h
===================================================================
--- fsP.h.orig
+++ fsP.h
@@ -94,6 +94,7 @@ void fatAllocate(Fs_t *This, unsigned in
void fatEncode(Fs_t *This, unsigned int pos, unsigned int value);
int fat_read(Fs_t *This, union bootsector *boot,
+ int fat_bits,
uint32_t tot_sectors, int nodups);
void fat_write(Fs_t *This);
int zero_fat(Fs_t *Fs, uint8_t media_descriptor);