diff options
Diffstat (limited to 'fs/fs.c')
| -rw-r--r-- | fs/fs.c | 32 |
1 files changed, 32 insertions, 0 deletions
@@ -41,6 +41,11 @@ static inline int fs_ls_unsupported(const char *dirname) return -1; } +static inline int fs_exists_unsupported(const char *filename) +{ + return 0; +} + static inline int fs_read_unsupported(const char *filename, void *buf, int offset, int len) { @@ -62,6 +67,7 @@ struct fstype_info { int (*probe)(block_dev_desc_t *fs_dev_desc, disk_partition_t *fs_partition); int (*ls)(const char *dirname); + int (*exists)(const char *filename); int (*read)(const char *filename, void *buf, int offset, int len); int (*write)(const char *filename, void *buf, int offset, int len); void (*close)(void); @@ -74,6 +80,7 @@ static struct fstype_info fstypes[] = { .probe = fat_set_blk_dev, .close = fat_close, .ls = file_fat_ls, + .exists = fs_exists_unsupported, .read = fat_read_file, .write = fs_write_unsupported, }, @@ -84,6 +91,7 @@ static struct fstype_info fstypes[] = { .probe = ext4fs_probe, .close = ext4fs_close, .ls = ext4fs_ls, + .exists = fs_exists_unsupported, .read = ext4_read_file, .write = fs_write_unsupported, }, @@ -94,6 +102,7 @@ static struct fstype_info fstypes[] = { .probe = sandbox_fs_set_blk_dev, .close = sandbox_fs_close, .ls = sandbox_fs_ls, + .exists = fs_exists_unsupported, .read = fs_read_sandbox, .write = fs_write_sandbox, }, @@ -103,6 +112,7 @@ static struct fstype_info fstypes[] = { .probe = fs_probe_unsupported, .close = fs_close_unsupported, .ls = fs_ls_unsupported, + .exists = fs_exists_unsupported, .read = fs_read_unsupported, .write = fs_write_unsupported, }, @@ -184,6 +194,19 @@ int fs_ls(const char *dirname) return ret; } +int fs_exists(const char *filename) +{ + int ret; + + struct fstype_info *info = fs_get_info(fs_type); + + ret = info->exists(filename); + + fs_close(); + + return ret; +} + int fs_read(const char *filename, ulong addr, int offset, int len) { struct fstype_info *info = fs_get_info(fs_type); @@ -309,6 +332,15 @@ int do_ls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[], return 0; } +int file_exists(const char *dev_type, const char *dev_part, const char *file, + int fstype) +{ + if (fs_set_blk_dev(dev_type, dev_part, fstype)) + return 0; + + return fs_exists(file); +} + int do_save(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[], int fstype) { |