X-Git-Url: https://git.cworth.org/git?a=blobdiff_plain;f=lib%2Flstat.c;fp=lib%2Flstat.c;h=0000000000000000000000000000000000000000;hb=3322ff6164a1e9dd3d1622c64a9b9b7c5f303ef6;hp=3e07270801a9a019c747ca8c83d36136ee0116ca;hpb=d73c4937b8f7712f6eb78774fa9711b701b419fd;p=tar diff --git a/lib/lstat.c b/lib/lstat.c deleted file mode 100644 index 3e07270..0000000 --- a/lib/lstat.c +++ /dev/null @@ -1,82 +0,0 @@ -/* Work around a bug of lstat on some systems - - Copyright (C) 1997-1999, 2000-2006, 2008 Free Software Foundation, Inc. - - This program is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 3 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program. If not, see . */ - -/* written by Jim Meyering */ - -#include - -/* Get the original definition of open. It might be defined as a macro. */ -#define __need_system_sys_stat_h -#include -#include -#undef __need_system_sys_stat_h - -static inline int -orig_lstat (const char *filename, struct stat *buf) -{ - return lstat (filename, buf); -} - -/* Specification. */ -#include - -#include -#include - -/* lstat works differently on Linux and Solaris systems. POSIX (see - `pathname resolution' in the glossary) requires that programs like - `ls' take into consideration the fact that FILE has a trailing slash - when FILE is a symbolic link. On Linux and Solaris 10 systems, the - lstat function already has the desired semantics (in treating - `lstat ("symlink/", sbuf)' just like `lstat ("symlink/.", sbuf)', - but on Solaris 9 and earlier it does not. - - If FILE has a trailing slash and specifies a symbolic link, - then use stat() to get more info on the referent of FILE. - If the referent is a non-directory, then set errno to ENOTDIR - and return -1. Otherwise, return stat's result. */ - -int -rpl_lstat (const char *file, struct stat *sbuf) -{ - size_t len; - int lstat_result = orig_lstat (file, sbuf); - - if (lstat_result != 0 || !S_ISLNK (sbuf->st_mode)) - return lstat_result; - - len = strlen (file); - if (len == 0 || file[len - 1] != '/') - return 0; - - /* FILE refers to a symbolic link and the name ends with a slash. - Call stat() to get info about the link's referent. */ - - /* If stat fails, then we do the same. */ - if (stat (file, sbuf) != 0) - return -1; - - /* If FILE references a directory, return 0. */ - if (S_ISDIR (sbuf->st_mode)) - return 0; - - /* Here, we know stat succeeded and FILE references a non-directory. - But it was specified via a name including a trailing slash. - Fail with errno set to ENOTDIR to indicate the contradiction. */ - errno = ENOTDIR; - return -1; -}