e2fsprogs/lib/ext2fs/dblist_dir.c

80 lines
1.5 KiB
C

/*
* dblist_dir.c --- iterate by directory entry
*
* Copyright 1997 by Theodore Ts'o
*
* %Begin-Header%
* This file may be redistributed under the terms of the GNU Public
* License.
* %End-Header%
*
*/
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#ifdef HAVE_ERRNO_H
#include <errno.h>
#endif
#include <linux/ext2_fs.h>
#include "ext2fsP.h"
static int db_dir_proc(ext2_filsys fs, struct ext2_db_entry *db_info,
void *private);
extern errcode_t
ext2fs_dblist_dir_iterate(ext2_dblist dblist,
int flags,
char *block_buf,
int (*func)(ino_t dir,
int entry,
struct ext2_dir_entry *dirent,
int offset,
int blocksize,
char *buf,
void *private),
void *private)
{
errcode_t retval;
struct dir_context ctx;
EXT2_CHECK_MAGIC(dblist, EXT2_ET_MAGIC_DBLIST);
ctx.dir = 0;
ctx.flags = flags;
if (block_buf)
ctx.buf = block_buf;
else {
ctx.buf = malloc(dblist->fs->blocksize);
if (!ctx.buf)
return ENOMEM;
}
ctx.func = 0;
ctx.func2 = func;
ctx.private = private;
ctx.errcode = 0;
retval = ext2fs_dblist_iterate(dblist, db_dir_proc, &ctx);
if (!block_buf)
free(ctx.buf);
if (retval)
return retval;
return ctx.errcode;
}
static int db_dir_proc(ext2_filsys fs, struct ext2_db_entry *db_info,
void *private)
{
struct dir_context *ctx = private;
ctx->dir = db_info->ino;
return ext2fs_process_dir_block(fs, &db_info->blk,
db_info->blockcnt, private);
}