| 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 */ |