From 64c54025842f205ad722675105b88044a5b6845a Mon Sep 17 00:00:00 2001 From: Denis Vlasenko Date: Tue, 26 Dec 2006 01:25:48 +0000 Subject: remove e2fsprogs. Nobody volunteered to clean up that mess --- e2fsprogs/ext2fs/namei.c | 205 ----------------------------------------------- 1 file changed, 205 deletions(-) delete mode 100644 e2fsprogs/ext2fs/namei.c (limited to 'e2fsprogs/ext2fs/namei.c') diff --git a/e2fsprogs/ext2fs/namei.c b/e2fsprogs/ext2fs/namei.c deleted file mode 100644 index 9889670..0000000 --- a/e2fsprogs/ext2fs/namei.c +++ /dev/null @@ -1,205 +0,0 @@ -/* vi: set sw=4 ts=4: */ -/* - * namei.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 -#include -#if HAVE_UNISTD_H -#include -#endif - -/* #define NAMEI_DEBUG */ - -#include "ext2_fs.h" -#include "ext2fs.h" - -static errcode_t open_namei(ext2_filsys fs, ext2_ino_t root, ext2_ino_t base, - const char *pathname, size_t pathlen, int follow, - int link_count, char *buf, ext2_ino_t *res_inode); - -static errcode_t follow_link(ext2_filsys fs, ext2_ino_t root, ext2_ino_t dir, - ext2_ino_t inode, int link_count, - char *buf, ext2_ino_t *res_inode) -{ - char *pathname; - char *buffer = 0; - errcode_t retval; - struct ext2_inode ei; - -#ifdef NAMEI_DEBUG - printf("follow_link: root=%lu, dir=%lu, inode=%lu, lc=%d\n", - root, dir, inode, link_count); - -#endif - retval = ext2fs_read_inode (fs, inode, &ei); - if (retval) return retval; - if (!LINUX_S_ISLNK (ei.i_mode)) { - *res_inode = inode; - return 0; - } - if (link_count++ > 5) { - return EXT2_ET_SYMLINK_LOOP; - } - if (ext2fs_inode_data_blocks(fs,&ei)) { - retval = ext2fs_get_mem(fs->blocksize, &buffer); - if (retval) - return retval; - retval = io_channel_read_blk(fs->io, ei.i_block[0], 1, buffer); - if (retval) { - ext2fs_free_mem(&buffer); - return retval; - } - pathname = buffer; - } else - pathname = (char *)&(ei.i_block[0]); - retval = open_namei(fs, root, dir, pathname, ei.i_size, 1, - link_count, buf, res_inode); - ext2fs_free_mem(&buffer); - return retval; -} - -/* - * This routine interprets a pathname in the context of the current - * directory and the root directory, and returns the inode of the - * containing directory, and a pointer to the filename of the file - * (pointing into the pathname) and the length of the filename. - */ -static errcode_t dir_namei(ext2_filsys fs, ext2_ino_t root, ext2_ino_t dir, - const char *pathname, int pathlen, - int link_count, char *buf, - const char **name, int *namelen, - ext2_ino_t *res_inode) -{ - char c; - const char *thisname; - int len; - ext2_ino_t inode; - errcode_t retval; - - if ((c = *pathname) == '/') { - dir = root; - pathname++; - pathlen--; - } - while (1) { - thisname = pathname; - for (len=0; --pathlen >= 0;len++) { - c = *(pathname++); - if (c == '/') - break; - } - if (pathlen < 0) - break; - retval = ext2fs_lookup (fs, dir, thisname, len, buf, &inode); - if (retval) return retval; - retval = follow_link (fs, root, dir, inode, - link_count, buf, &dir); - if (retval) return retval; - } - *name = thisname; - *namelen = len; - *res_inode = dir; - return 0; -} - -static errcode_t open_namei(ext2_filsys fs, ext2_ino_t root, ext2_ino_t base, - const char *pathname, size_t pathlen, int follow, - int link_count, char *buf, ext2_ino_t *res_inode) -{ - const char *basename; - int namelen; - ext2_ino_t dir, inode; - errcode_t retval; - -#ifdef NAMEI_DEBUG - printf("open_namei: root=%lu, dir=%lu, path=%*s, lc=%d\n", - root, base, pathlen, pathname, link_count); -#endif - retval = dir_namei(fs, root, base, pathname, pathlen, - link_count, buf, &basename, &namelen, &dir); - if (retval) return retval; - if (!namelen) { /* special case: '/usr/' etc */ - *res_inode=dir; - return 0; - } - retval = ext2fs_lookup (fs, dir, basename, namelen, buf, &inode); - if (retval) - return retval; - if (follow) { - retval = follow_link(fs, root, dir, inode, link_count, - buf, &inode); - if (retval) - return retval; - } -#ifdef NAMEI_DEBUG - printf("open_namei: (link_count=%d) returns %lu\n", - link_count, inode); -#endif - *res_inode = inode; - return 0; -} - -errcode_t ext2fs_namei(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd, - const char *name, ext2_ino_t *inode) -{ - char *buf; - errcode_t retval; - - EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS); - - retval = ext2fs_get_mem(fs->blocksize, &buf); - if (retval) - return retval; - - retval = open_namei(fs, root, cwd, name, strlen(name), 0, 0, - buf, inode); - - ext2fs_free_mem(&buf); - return retval; -} - -errcode_t ext2fs_namei_follow(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd, - const char *name, ext2_ino_t *inode) -{ - char *buf; - errcode_t retval; - - EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS); - - retval = ext2fs_get_mem(fs->blocksize, &buf); - if (retval) - return retval; - - retval = open_namei(fs, root, cwd, name, strlen(name), 1, 0, - buf, inode); - - ext2fs_free_mem(&buf); - return retval; -} - -errcode_t ext2fs_follow_link(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd, - ext2_ino_t inode, ext2_ino_t *res_inode) -{ - char *buf; - errcode_t retval; - - EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS); - - retval = ext2fs_get_mem(fs->blocksize, &buf); - if (retval) - return retval; - - retval = follow_link(fs, root, cwd, inode, 0, buf, res_inode); - - ext2fs_free_mem(&buf); - return retval; -} - -- cgit v1.1