+2006-01-09 Paul Eggert <eggert@cs.ucla.edu>
+
+ Sync from coreutils.
+ * chdir-long.c (cdb_free): Don't bother trying to open directory
+ for write access: POSIX says that must fail.
+ * fts.c (diropen): Likewise.
+ * save-cwd.c (save_cwd): Likewise.
+ * chdir-long.c (cdb_free): Open with O_NOCTTY | O_NONBLOCK as
+ well, for minor improvements on hosts that lack O_DIRECTORY.
+
+ * gettime.c (gettime) [!defined OK_TO_USE_1S_CLOCK]:
+ Report an error at compile-time if only a 1-second nominal clock
+ resolution is found.
+
+ * lchmod.h: New file.
+ * mkdir-p.c: Include lchmod.h, lchown.h.
+ (make_dir_parents): Use lchown rather than chown, and
+ lchmod rather than chmod.
+
+ * mountlist.c (ME_DUMMY): "none" and "proc" file systems are dummies
+ too. Problem with "none" reported by Bob Proulx. Problem with
+ "proc" reported by n0dalus.
+
+ * mountlist.c: Include <limits.h>.
+ (dev_from_mount_options)
+ [defined MOUNTED_GETMNTENT1 || defined MOUNTED_GETMNTENT2]:
+ New function. It no longer assumes "dev=" has the System V meaning
+ on Linux (since it doesn't). It also parses "dev=" more carefully.
+ (read_file_system_list)
+ [defined MOUNTED_GETMNTENT1 || defined MOUNTED_GETMNTENT2]: Use it.
+ MOUNTED_GETMNTENT2 is new here; the code didn't used to look for
+ dev= in that case.
+
+ * posixtm.h (PDS_PRE_2000): New macro.
+ * posixtm.c (year): Arg is now syntax_bits rather than allow_century.
+ All usages changed. Reject dates outside the range 1969-1999 if
+ PDS_PRE_2000 is used.
+
+2006-01-09 Jim Meyering <jim@meyering.net>
+
+ Sync from coreutils.
+
+ * version-etc.c (COPYRIGHT_YEAR): Update to 2006.
+
+ Rewrite fts.c not to change the current working directory,
+ by using openat, fstatat, fdopendir, etc..
+
+ * fts.c [! _LIBC]: Include "openat.h", "unistd--.h", and "fcntl--.h".
+ [_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.
+ * fts_.h [struct FTS] (fts_cwd_fd): New member.
+ (fts_rft): Remove now-unused member.
+
+ * openat.c (fchownat): New function.
+ * openat.h (fchmodat, fchownat): Declare.
+ (chmodat, lchmodat): Define convenience functions.
+ (chownat, lchownat): Likewise.
+
+ * chdir-safer.h, chdir-safer.c: New files.
+
+ * modechange.c (mode_compile): Reject an invalid mode string
+ that starts with an octal digit. From Andreas Gruenbacher.
+
+ * openat.c: Include "fcntl--.h" and "unistd--.h", to map open
+ and dup to open_safer and dup_safer, respectively.
+ (openat_permissive): Fix typo in comment.
+
+ * openat.c: Don't include <stdlib.h>, <unistd.h>, <fcntl.h>,
+ "gettext.h"; either no longer needed or are guaranteed by openat.h.
+ (_): Remove; no longer needed.
+ (openat): Renamed from rpl_openat; no need for rpl_openat
+ since openat.h renames openat for us.
+ Replace most of the body with a call to openat_permissive,
+ to avoid duplicate code.
+ Port to (probably hypothetical) environments were mode_t is
+ wider than int.
+ (openat_permissive): Require mode arg, so that we can check
+ types better. Put it just after flags. Change cwd failure
+ indicator from pointer-to-bool to pointer-to-errno-value.
+ All callers changed.
+ Invoke openat_save_fail and/or openat_restore_fail if
+ cwd_errno is null, so that openat can call us.
+ (openat_permissive, fdopendir, fstatat, unlinkat):
+ Simplify errno handling to avoid some duplicate code,
+ as it's OK to set errno on success.
+ * openat.h: Revamp code so that function macros depend on
+ __OPENAT_PREFIX only, not also on AT_FDCWD.
+ (openat_ro): Remove. Caller changed to use openat_permissive.
+ (openat_permissive): Now a macro, if not a function.
+ (openat_restore_fail, openat_save_fail): Now always functions,
+ since mkdirat needs them even if __OPENAT_PREFIX is defined.
+
+ * openat-priv.h: New file, defining macros used by mkdirat.c
+ and openat.c.
+ * mkdirat.c: Include openat-priv.h.
+ Remove definitions of macros defined therein.
+ * openat.c: Likewise.
+
+ * mkdirat.c (mkdirat): New file and function.
+ * openat.h (mkdirat): Declare.
+
+ * openat.c (fdopendir): Don't change errno when returning non-NULL.
+
+ * openat.h (openat_permissive): Declare.
+ (openat_ro): Define.
+
+ * openat.c (EXPECTED_ERRNO): New macro.
+ (openat_permissive): New function -- used in remove.c rewrite.
+ (all functions): Set errno just before returning, only if there
+ was an actual failure.
+ Use EXPECTED_ERRNO rather than comparing against only ENOTDIR.
+
+ Emulate openat-family functions using Linux's procfs, if possible.
+ Idea and some code based on Ulrich Drepper's glibc changes.
+
+ * openat.c: (BUILD_PROC_NAME): New macro.
+ Include <stdio.h>, <string.h>, "alloca.h" and "intprops.h".
+ (rpl_openat): Emulate by trying to open /proc/self/fd/%d/%s,
+ before falling back on save_cwd and restore_cwd.
+ (fdopendir, fstatat, unlinkat): Likewise.
+
+ * openat.c (fstatat, unlinkat): Perform the syscall directly,
+ skipping the save_cwd...restore_cwd overhead, if FILE is absolute.
+
+ * openat.c (rpl_openat): Use the promoted type (int), not mode_t,
+ as second argument to va_arg. Otherwise, some versions of gcc
+ warn that `if this code is reached, the program will abort'.
+
+2006-01-09 Andreas Gruenbacher <agruen@suse.de>
+
+ Sync from coreutils.
+
+ Add POSIX ACL support
+ * acl.h (copy_acl, set_acl): Add declarations.
+ * acl.c (acl_entries): Add fallback implementation for POSIX ACL
+ systems other than Linux.
+ (chmod_or_fchmod): New function: use fchmod when possible,
+ and chmod otherwise.
+ (file_has_acl): Add a POSIX ACL implementation, with a
+ Linux-specific subcase.
+ (copy_acl): Add: copy an acl and S_ISUID, S_ISGID, and
+ S_ISVTX from one file to another. Fall back to fchmod/chmod when
+ acls are unsupported.
+ (set_acl): Add: set a file's acl and S_ISUID, S_ISGID, and
+ S_ISVTX to a defined value. Fall back to fchmod/chmod when acls
+ are unsupported.
+
2006-01-09 Bruno Haible <bruno@clisp.org>
* sysexit_.h (EX_OK): New macro.