1 /* 2 * dblist_dir.c --- iterate by directory entry 3 * 4 * Copyright 1997 by Theodore Ts'o 5 * 6 * %Begin-Header% 7 * This file may be redistributed under the terms of the GNU Library 8 * General Public License, version 2. 9 * %End-Header% 10 */ 11 12 #include "config.h" 13 #include <stdio.h> 14 #if HAVE_UNISTD_H 15 #include <unistd.h> 16 #endif 17 #include <string.h> 18 #include <time.h> 19 20 #include "ext2_fs.h" 21 #include "ext2fsP.h" 22 23 static int db_dir_proc(ext2_filsys fs, struct ext2_db_entry2 *db_info, 24 void *priv_data); 25 26 errcode_t ext2fs_dblist_dir_iterate(ext2_dblist dblist, 27 int flags, 28 char *block_buf, 29 int (*func)(ext2_ino_t dir, 30 int entry, 31 struct ext2_dir_entry *dirent, 32 int offset, 33 int blocksize, 34 char *buf, 35 void *priv_data), 36 void *priv_data) 37 { 38 errcode_t retval; 39 struct dir_context ctx; 40 41 EXT2_CHECK_MAGIC(dblist, EXT2_ET_MAGIC_DBLIST); 42 43 ctx.dir = 0; 44 ctx.flags = flags; 45 if (block_buf) 46 ctx.buf = block_buf; 47 else { 48 retval = ext2fs_get_mem(dblist->fs->blocksize, &ctx.buf); 49 if (retval) 50 return retval; 51 } 52 ctx.func = func; 53 ctx.priv_data = priv_data; 54 ctx.errcode = 0; 55 56 retval = ext2fs_dblist_iterate2(dblist, db_dir_proc, &ctx); 57 58 if (!block_buf) 59 ext2fs_free_mem(&ctx.buf); 60 if (retval) 61 return retval; 62 return ctx.errcode; 63 } 64 65 static int db_dir_proc(ext2_filsys fs, struct ext2_db_entry2 *db_info, 66 void *priv_data) 67 { 68 struct ext2_inode inode; 69 struct dir_context *ctx; 70 int ret; 71 72 ctx = (struct dir_context *) priv_data; 73 ctx->dir = db_info->ino; 74 ctx->errcode = 0; 75 76 ctx->errcode = ext2fs_read_inode(fs, ctx->dir, &inode); 77 if (ctx->errcode) 78 return DBLIST_ABORT; 79 if (inode.i_flags & EXT4_INLINE_DATA_FL) 80 ret = ext2fs_inline_data_dir_iterate(fs, ctx->dir, ctx); 81 else 82 ret = ext2fs_process_dir_block(fs, &db_info->blk, 83 db_info->blockcnt, 0, 0, 84 priv_data); 85 if ((ret & BLOCK_ABORT) && !ctx->errcode) 86 return DBLIST_ABORT; 87 return 0; 88 } 89
