36,6 → 36,8 |
*/ |
|
#include "fat.h" |
#include "fat_dentry.h" |
#include "fat_fat.h" |
#include "../../vfs/vfs.h" |
#include <libfs.h> |
#include <ipc/ipc.h> |
61,45 → 63,8 |
/** List of cached free FAT nodes. */ |
static LIST_INITIALIZE(ffn_head); |
|
#define FAT_NAME_LEN 8 |
#define FAT_EXT_LEN 3 |
|
#define FAT_PAD ' ' |
|
#define FAT_DENTRY_UNUSED 0x00 |
#define FAT_DENTRY_E5_ESC 0x05 |
#define FAT_DENTRY_DOT 0x2e |
#define FAT_DENTRY_ERASED 0xe5 |
|
#define min(a, b) ((a) < (b) ? (a) : (b)) |
|
static void dentry_name_canonify(fat_dentry_t *d, char *buf) |
{ |
int i; |
|
for (i = 0; i < FAT_NAME_LEN; i++) { |
if (d->name[i] == FAT_PAD) |
break; |
if (d->name[i] == FAT_DENTRY_E5_ESC) |
*buf++ = 0xe5; |
else |
*buf++ = d->name[i]; |
} |
if (d->ext[0] != FAT_PAD) |
*buf++ = '.'; |
for (i = 0; i < FAT_EXT_LEN; i++) { |
if (d->ext[i] == FAT_PAD) { |
*buf = '\0'; |
return; |
} |
if (d->ext[i] == FAT_DENTRY_E5_ESC) |
*buf++ = 0xe5; |
else |
*buf++ = d->ext[i]; |
} |
*buf = '\0'; |
} |
|
static int dev_phone = -1; /* FIXME */ |
static void *dev_buffer = NULL; /* FIXME */ |
|
299,36 → 264,6 |
return bps; |
} |
|
typedef enum { |
FAT_DENTRY_SKIP, |
FAT_DENTRY_LAST, |
FAT_DENTRY_VALID |
} fat_dentry_clsf_t; |
|
static fat_dentry_clsf_t fat_classify_dentry(fat_dentry_t *d) |
{ |
if (d->attr & FAT_ATTR_VOLLABEL) { |
/* volume label entry */ |
return FAT_DENTRY_SKIP; |
} |
if (d->name[0] == FAT_DENTRY_ERASED) { |
/* not-currently-used entry */ |
return FAT_DENTRY_SKIP; |
} |
if (d->name[0] == FAT_DENTRY_UNUSED) { |
/* never used entry */ |
return FAT_DENTRY_LAST; |
} |
if (d->name[0] == FAT_DENTRY_DOT) { |
/* |
* Most likely '.' or '..'. |
* It cannot occur in a regular file name. |
*/ |
return FAT_DENTRY_SKIP; |
} |
return FAT_DENTRY_VALID; |
} |
|
static void fat_node_sync(fat_node_t *node) |
{ |
/* TODO */ |