36,6 → 36,7 |
*/ |
|
#include "fat_dentry.h" |
#include <ctype.h> |
|
#define FAT_PAD ' ' |
|
44,8 → 45,49 |
#define FAT_DENTRY_DOT 0x2e |
#define FAT_DENTRY_ERASED 0xe5 |
|
void dentry_name_canonify(fat_dentry_t *d, char *buf) |
static bool is_d_char(const char ch) |
{ |
if (isalnum(ch) || ch == '_') |
return true; |
else |
return false; |
} |
|
bool fat_dentry_name_verify(const char *name) |
{ |
unsigned i, dot; |
bool dot_found = false; |
|
|
for (i = 0; name[i]; i++) { |
if (name[i] == '.') { |
if (dot_found) { |
return false; |
} else { |
dot_found = true; |
dot = i; |
} |
} else { |
if (!is_d_char(name[i])) |
return false; |
} |
} |
|
if (dot_found) { |
if (dot > FAT_NAME_LEN) |
return false; |
if (i - dot > FAT_EXT_LEN + 1) |
return false; |
} else { |
if (i > FAT_NAME_LEN) |
return false; |
} |
|
return true; |
} |
|
void fat_dentry_name_get(const fat_dentry_t *d, char *buf) |
{ |
int i; |
|
for (i = 0; i < FAT_NAME_LEN; i++) { |
71,8 → 113,47 |
*buf = '\0'; |
} |
|
fat_dentry_clsf_t fat_classify_dentry(fat_dentry_t *d) |
void fat_dentry_name_set(fat_dentry_t *d, const char *name) |
{ |
int i; |
const char fake_ext[] = " "; |
|
|
for (i = 0; i < FAT_NAME_LEN; i++) { |
switch ((uint8_t) *name) { |
case 0xe5: |
d->name[i] = FAT_DENTRY_E5_ESC; |
name++; |
break; |
case '\0': |
case '.': |
d->name[i] = FAT_PAD; |
break; |
default: |
d->name[i] = toupper(*name++); |
break; |
} |
} |
if (*name++ != '.') |
name = fake_ext; |
for (i = 0; i < FAT_EXT_LEN; i++) { |
switch ((uint8_t) *name) { |
case 0xe5: |
d->ext[i] = FAT_DENTRY_E5_ESC; |
name++; |
break; |
case '\0': |
d->ext[i] = FAT_PAD; |
break; |
default: |
d->ext[i] = toupper(*name++); |
break; |
} |
} |
} |
|
fat_dentry_clsf_t fat_classify_dentry(const fat_dentry_t *d) |
{ |
if (d->attr & FAT_ATTR_VOLLABEL) { |
/* volume label entry */ |
return FAT_DENTRY_SKIP; |
79,7 → 160,7 |
} |
if (d->name[0] == FAT_DENTRY_ERASED) { |
/* not-currently-used entry */ |
return FAT_DENTRY_SKIP; |
return FAT_DENTRY_FREE; |
} |
if (d->name[0] == FAT_DENTRY_UNUSED) { |
/* never used entry */ |