view lib/mkdirat.c @ 7151:43e3888c56c4

Update from coreutils. * lib/__fpending.h: Add copyright notice. * lib/fprintftime.h: Likewise. * lib/savedir.c: Use (C) in copyright notice. * lib/savedir.h: Likewise. 2006-08-15 Jim Meyering <jim@meyering.net> * lib/at-func.c: New file, with the logic of all emulated at-functions. * lib/openat-priv.h: Include <errno.h> and define ENOSYS, in support of the EXPECTED_ERRNO macro. * lib/openat.c (fstatat, unlinkat, fchownat): Remove function definitions. Instead, define the appropriate symbols and include "at-func.c". * lib/mkdirat.c (mkdirat): Likewise. * lib/fchmodat.c (fchmodat): Likewise. (ENOSYS): Remove definition. * lib/openat.c: Don't include <errno.h>, now that "openat-priv.h" does it. Don't include "unistd--.h" -- it wasn't ever used. 2006-01-17 Jim Meyering <jim@meyering.net> Rewrite fts.c not to change the current working directory, by using openat, fstatat, fdopendir, etc.. * lib/fts.c [! _LIBC]: Include "openat.h" and "unistd--.h". (HAVE_OPENAT_SUPPORT): Define. [_LIBC] (fchdir): Don't undef or define; no longer used. (FCHDIR): Define in terms of cwd_advance_fd rather than fchdir. Now, this `function' always succeeds, and consumes its file descriptor parameter -- so callers must not close such FDs. Update callers. (diropen_fd, opendirat, cwd_advance_fd): New functions. (diropen): Add parameter, SP. Adjust all callers. Implement using diropen_fd, rather than open. (fts_open): Initialize new member, fts_cwd_fd. Remove fts_rft-setting code. (fts_close): Close fts_cwd_fd, if necessary. (__opendir2): Define in terms of opendir or opendirat, depending on whether the FST_NOCHDIR flag is set. (fts_build): Since fts_safe_changedir consumes its FD, and since this code must do `closedir(dirp)', dup the dirfd(dirp) argument, and close the dup'd file descriptor upon failure. (fts_stat): Use fstatat(...AT_SYMLINK_NOFOLLOW) in place of lstat. (fts_safe_changedir): Tweak semantics to reflect that this function now calls cwd_advance_fd and hence consumes its FD argument. * lib/fts_.h [struct FTS] (fts_cwd_fd): New member. [struct FTS] (fts_rft): Remove now-unused member. [struct FTS] (fts_cycle.state): Improve comment. * lib/openat.c (openat_needs_fchdir): New function. * lib/openat.h (openat_needs_fchdir): Declare it. 2006-08-15 Jim Meyering <jim@meyering.net> * m4/openat.m4 (gl_FUNC_OPENAT): Add at-func.c via AC_LIBSOURCES. 2006-01-17 Jim Meyering <jim@meyering.net> * m4/fts.m4 (gl_FUNC_FTS_CORE): Depend on gl_FUNC_OPENAT. 2006-01-11 Jim Meyering <jim@meyering.net> * m4/openat.m4 (gl_FUNC_OPENAT): Require and compile fchmodat.c. Check for the lchmod function.
author Paul Eggert <eggert@cs.ucla.edu>
date Thu, 17 Aug 2006 20:34:21 +0000
parents 6b31c8787689
children 8a1a9361108c
line wrap: on
line source

/* fd-relative mkdir
   Copyright (C) 2005, 2006 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 2, 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, write to the Free Software Foundation,
   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */

/* written by Jim Meyering */

#ifdef HAVE_CONFIG_H
# include <config.h>
#endif

#include "openat.h"

#include <unistd.h>

#include "dirname.h" /* solely for definition of IS_ABSOLUTE_FILE_NAME */
#include "save-cwd.h"
#include "openat-priv.h"

/* Solaris 10 has no function like this.
   Create a subdirectory, FILE, with mode MODE, in the directory
   open on descriptor FD.  If possible, do it without changing the
   working directory.  Otherwise, resort to using save_cwd/fchdir,
   then mkdir/restore_cwd.  If either the save_cwd or the restore_cwd
   fails, then give a diagnostic and exit nonzero.  */

#define AT_FUNC_NAME mkdirat
#define AT_FUNC_F1 mkdir
#define AT_FUNC_F2 mkdir
#define AT_FUNC_USE_F1_COND 1
#define AT_FUNC_POST_FILE_PARAM_DECLS , mode_t mode
#define AT_FUNC_POST_FILE_ARGS        , mode
#include "at-func.c"