Implement the readdir interface using the directory iterators.
Signed-off-by: Rob Clark robdclark@gmail.com --- fs/fat/fat.c | 56 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 56 insertions(+)
diff --git a/fs/fat/fat.c b/fs/fat/fat.c index a50a10ba47..fe5819315b 100644 --- a/fs/fat/fat.c +++ b/fs/fat/fat.c @@ -14,6 +14,7 @@ #include <config.h> #include <exports.h> #include <fat.h> +#include <fs.h> #include <asm/byteorder.h> #include <part.h> #include <malloc.h> @@ -1119,6 +1120,61 @@ int fat_read_file(const char *filename, void *buf, loff_t offset, loff_t len, return ret; }
+typedef struct { + FS_DIR parent; + fsdata fsdata; + fat_itr itr; +} fat_dir; + +int fat_opendir(const char *filename, FS_DIR **dirp) +{ + fat_dir *dir = malloc(sizeof(*dir)); + int ret; + + if (!dir) + return -ENOMEM; + + ret = fat_itr_root(&dir->itr, &dir->fsdata); + if (ret) + goto fail; + + ret = fat_itr_resolve(&dir->itr, filename, TYPE_DIR); + if (ret) + goto fail; + + *dirp = (FS_DIR *)dir; + return 0; + +fail: + free(dir); + return ret; +} + +int fat_readdir(FS_DIR *dirp) +{ + fat_dir *dir = (fat_dir *)dirp; + struct fs_dirent *dent = &dirp->dirent; + + if (!fat_itr_next(&dir->itr)) + return -ENOENT; + + strcpy(dent->name, dir->itr.name); + if (fat_itr_isdir(&dir->itr)) { + dent->type = FS_DT_DIR; + } else { + dent->type = FS_DT_REG; + dent->size = FAT2CPU32(dir->itr.dent->size); + } + + return 0; +} + +void fat_closedir(FS_DIR *dirp) +{ + fat_dir *dir = (fat_dir *)dirp; + free(dir); +} + void fat_close(void) { }