/* vi: set sw=4 ts=4: */ /* * lookup.c --- ext2fs directory lookup operations * * Copyright (C) 1993, 1994, 1994, 1995 Theodore Ts'o. * * %Begin-Header% * This file may be redistributed under the terms of the GNU Public * License. * %End-Header% */ #include <stdio.h> #include <string.h> #if HAVE_UNISTD_H #include <unistd.h> #endif #include "ext2_fs.h" #include "ext2fs.h" struct lookup_struct { const char *name; int len; ext2_ino_t *inode; int found; }; #ifdef __TURBOC__ # pragma argsused #endif static int lookup_proc(struct ext2_dir_entry *dirent, int offset EXT2FS_ATTR((unused)), int blocksize EXT2FS_ATTR((unused)), char *buf EXT2FS_ATTR((unused)), void *priv_data) { struct lookup_struct *ls = (struct lookup_struct *) priv_data; if (ls->len != (dirent->name_len & 0xFF)) return 0; if (strncmp(ls->name, dirent->name, (dirent->name_len & 0xFF))) return 0; *ls->inode = dirent->inode; ls->found++; return DIRENT_ABORT; } errcode_t ext2fs_lookup(ext2_filsys fs, ext2_ino_t dir, const char *name, int namelen, char *buf, ext2_ino_t *inode) { errcode_t retval; struct lookup_struct ls; EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS); ls.name = name; ls.len = namelen; ls.inode = inode; ls.found = 0; retval = ext2fs_dir_iterate(fs, dir, 0, buf, lookup_proc, &ls); if (retval) return retval; return (ls.found) ? 0 : EXT2_ET_FILE_NOT_FOUND; }