I started with the patches from Red Hat.
The entries below tell how the code evolved.
* src/ls.c (print_long_format, print_file_name_and_frills): When
there is no security context (due to getfilecon/lgetfilecon failing
with e.g. ENOTSUP), print it as "?", not "".
* src/ls.c (print_file_name_and_frills): Make -Z work without -l.
(length_of_file_name_and_frills): Likewise.
* src/ls.c: Remove the --lcontext and --scontext options.
Change the way -Z, --context work so that it no longer implies -l.
Thus, -Z -l will work like -lcontext and -Z without -l will work
like --scontext.
Adjust tests to reflect new 'ls -l' syntax -- affects only
systems with SELinux when operating on a file with no ACL.
These tests assumed that everything before the first space on
each line is the 10-byte mode string. But there may also be a "+"
in the 11th column, just before the space. However, note that this
is not new. The same thing would have happened even without the
change below, when listing a file with an ACL.
* tests/chmod/equals, tests/cp/cp-parents, tests/cp/fail-perm:
* tests/cp/link-preserve, tests/install/basic-1, tests/misc/mknod:
* tests/mkdir/parents, tests/mkdir/special-1, tests/mv/partition-perm:
Don't make compilation depend on USE_ACL. An SELinux security
context counts as an "alternate access control method", so ls
must output a "+" for each file with a security context.
* src/ls.c [struct fileinfo] (have_acl): Declare unconditionally.
(FILE_HAS_ACL): Remove macro definition. Use f->have_acl directly.
(gobble_file): Record whether a file has a security context, and
update the condition used to determine whether to print the "+".
(gobble_file): Call getfilecon/lgetfilecon also when
format == long_format, so that we get the "+".
* src/ls.c (gobble_file): Add a comment explaining why (with a
security context option) ls doesn't exit nonzero due to e.g.,
getfilecon failing with errno == ENOTSUP.
* src/ls.c (gobble_file): Ignore failure of getfilecon if it's due
to ENOTSUP.
* src/ls.c (gobble_file): Factor out three small blocks using
getfilecon and lgetfilecon.
Don't ignore return value from getfilecon and lgetfilecon.
* src/ls.c (print_long_format): Don't use ?: (empty 2nd arg with C
ternary operator).
(print_scontext_format): Likewise.
(print_scontext): Declare to be "bool", not int. Adjust uses.
* src/Makefile.am (dir_LDADD, ls_LDADD, vdir_LDADD): Add $(LIB_SELINUX).
* tests/misc/chcon: New file.
* tests/misc/chcon-fail: New file.
* tests/Makefile.am (check-root): Run new, root-only misc/chcon test.
* tests/misc/Makefile.am (TESTS): Add chcon and chcon-fail.
* tests/misc/Makefile.am (TESTS): Add selinux.
* tests/misc/selinux: New file.
* tests/help-version: Skip chcon.
* gl/modules/selinux-at: New module. Check for libselinux and set
LIB_SELINUX here, unconditionally, rather than depending on
the configure-time --enable-selinux option.
* gl/modules/selinux-h: New module.
* bootstrap.conf (gnulib_modules): Add selinux-at.
* gl/lib/selinux-at.c, gl/lib/selinux-at.h: New files.
* gl/lib/se-selinux_.h: New file.
* gl/lib/se-context_.h: New file.
* gl/m4/selinux-selinux-h.m4: New file.
* gl/m4/selinux-context-h.m4: New file.
* src/Makefile.am (bin_PROGRAMS): Add chcon.
(chcon_LDADD): Define.
* README: Add chcon to the list of programs.
* src/chcon.c: Rewrite the original (Red Hat) chcon to use fts.
with 'rm -r dir' (without -f), if we are root, or if we are removing
a directory tree that is full of symbolic links.
* bootstrap.conf (gnulib_modules): Add write-any-file.
* src/copy.c: Include write-any-file.h.
(UNWRITABLE): Remove macro, replacing with....
(writable_destination): New function, which uses can_write_any_file
to avoid the need for euidaccess when we are privileged.
(overwrite_prompt, abandon_move): Use it.
* src/remove.c: Include write-any-file.h.
(D_TYPE): New macro.
(DT_UNKNOWN, DT_DIR, DT_LNK) [!HAVE_STRUCT_DIRENT_D_TYPE]: New macros.
(write_protected_non_symlink): Don't bother to stat if we can write
any file.
(prompt): New arg PDIRENT_TYPE. All callers changed.
Use readdir dirent type to avoid the need for 'lstat' on each directory
entry in cases like 'rm -r dir', if we are root, or if the tree is
full of symbolic links.
(DT_IS_KNOWN, DT_MUST_BE): Remove.
(remove_entry): New arg DIRENT_TYPE_ARG. All callers changed.
* tests/du/slink: When using df --local and df --type=TYPE,
test only the exit code. Don't bother with stdout.
Prompted by a report by Thomas Schwinge of an inaccurate diagnostic.
* tests/mkdir/p-3: When setting up an unreadable "." in an
inaccessible parent, make the parent inaccessible *after* making "."
unreadable. Otherwise, running "chmod a-r ." in an already-
inaccessible parent would fail on NFS with "Stale NFS file handle".
Signed-off-by: Jim Meyering <jim@meyering.net>
* NEWS: Describe how the fix affects pr.
* src/pr.c (init_parameters): The --merge (-m) option does
not imply --expand-tabs (-e), so don't set "untabify_input".
Reported by Wis Macomson.
* tests/misc/pr: New file. Test for the above fix.
* tests/misc/Makefile.am (TESTS): Add pr.
* THANKS: Update.
* gl/lib/acl.c (ACL_NOT_WELL_SUPPORTED): New macro.
(file_has_acl, copy_acl): Use it, rather than enumerating errno values.
(is_trivial_acl): New function. Incomplete, for now.
(file_has_acl, copy_acl): Use the new function, rather than
counting the number of entries in an ACL.
(overwrite_prompt): Say "try to overwrite", not "overwrite", to
make it clearer that the attempt may fail. Problem reported by
Dan Jacobson in:
http://lists.gnu.org/archive/html/bug-coreutils/2007-03/msg00130.html
Output symbolic mode as well as numeric.
* tests/mv/i-2 (fail): Adjust to new prompt format.
* coreutils.texi (sort invocation): Explain numeric sorts better.
Compress self-congratulation into a simple "comparison is exact"
notice; the --general-numeric-sort option already explains the
tradeoffs.
(seq invocation): Add example of -f.
* Makefile.maint (sc_prohibit_atoi_atof): Add to regexp and diagnostic.
* .x-sc_prohibit_atoi_atof: Give stty a temporary pass.
* TODO: note that stty.c needs this small clean-up.
Jim Meyering
Paul Eggert
Eric Blake