1: stty.c:
    2:   use xstrtoul, not sscanf
    3: 
    4: printf:
    5:   Now that gnulib supports *printf("%a"), import one of the
    6:   *printf-posix modules so that printf(1) will support %a even on
    7:   platforms where the native *printf(3) is deficient.
    8:   Suggestion form Eric Blake.
    9: 
   10: strip: add an option to specify the program used to strip binaries.
   11:   suggestion from Karl Berry
   12: 
   13: doc/coreutils.texi:
   14:   Address this comment: FIXME: mv's behavior in this case is system-dependent
   15:   Better still: fix the code so it's *not* system-dependent.
   16: 
   17: ls: add --format=FORMAT option that controls how each line is printed.
   18: 
   19: cp --no-preserve=X should not attempt to preserve attribute X
   20:   reported by Andreas Schwab
   21: 
   22: copy.c: Address the FIXME-maybe comment in copy_internal.
   23: And once that's done, add an exclusion so that `cp --link'
   24: no longer incurs the overhead of saving src. dev/ino and dest. filename
   25: in the hash table.
   26: 
   27: See if we can be consistent about where --verbose sends its output:
   28:   These all send --verbose output to stdout:
   29:     head, tail, rm, cp, mv, ln, chmod, chown, chgrp, install, ln
   30:   These send it to stderr:
   31:     shred mkdir split
   32:   readlink is different
   33: 
   34: Write an autoconf test to work around build failure in HPUX's 64-bit mode.
   35: See notes in README -- and remove them once there's a work-around.
   36: 
   37: Integrate use of sendfile, suggested here:
   38:   http://mail.gnu.org/archive/html/bug-fileutils/2003-03/msg00030.html
   39: I don't plan to do that, since a few tests demonstrate no significant benefit.
   40: 
   41: Should printf '\0123' print "\n3"?
   42:   per report from TAKAI Kousuke on Mar 27
   43:   http://mail.gnu.org/archive/html/bug-coreutils/2003-03/index.html
   44: 
   45: printf: consider adapting builtins/printf.def from bash
   46: 
   47: df: add `--total' option, suggested here http://bugs.debian.org/186007
   48: 
   49: seq: give better diagnostics for invalid formats:
   50:    e.g. no or too many % directives
   51: seq: consider allowing format string to contain no %-directives
   52: 
   53: resolve RH report on cp -a forwarded by Tim Waugh
   54: 
   55: tail: don't use xlseek; it *exits*.
   56:   Instead, maybe use a macro and return nonzero.
   57: 
   58: add mktemp?  Suggested by Nelson Beebe
   59: 
   60: tr: support nontrivial equivalence classes, e.g. [=e=] with LC_COLLATE=fr_FR
   61: 
   62: lib/strftime.c: Since %N is the only format that we need but that
   63:   glibc's strftime doesn't support, consider using a wrapper that
   64:   would expand /%(-_)?\d*N/ to the desired string and then pass the
   65:   resulting string to glibc's strftime.
   66: 
   67: sort: Compress temporary files when doing large external sort/merges.
   68:   This improves performance when you can compress/uncompress faster than
   69:   you can read/write, which is common in these days of fast CPUs.
   70:   suggestion from Charles Randall on 2001-08-10
   71: 
   72: unexpand: [http://www.opengroup.org/onlinepubs/007908799/xcu/unexpand.html]
   73:   printf 'x\t \t y\n'|unexpand -t 8,9 should print its input, unmodified.
   74:   printf 'x\t \t y\n'|unexpand -t 5,8 should print "x\ty\n"
   75: 
   76: Let GNU su use the `wheel' group if appropriate.
   77:   (there are a couple patches, already)
   78: 
   79: sort: Investigate better sorting algorithms; see Knuth vol. 3.
   80: 
   81:   We tried list merge sort, but it was about 50% slower than the
   82:   recursive algorithm currently used by sortlines, and it used more
   83:   comparisons.  We're not sure why this was, as the theory suggests it
   84:   should do fewer comparisons, so perhaps this should be revisited.
   85:   List merge sort was implemented in the style of Knuth algorithm
   86:   5.2.4L, with the optimization suggested by exercise 5.2.4-22.  The
   87:   test case was 140,213,394 bytes, 426,4424 lines, text taken from the
   88:   GCC 3.3 distribution, sort.c compiled with GCC 2.95.4 and running on
   89:   Debian 3.0r1 GNU/Linux, 2.4GHz Pentium 4, single pass with no
   90:   temporary files and plenty of RAM.
   91: 
   92:   Since comparisons seem to be the bottleneck, perhaps the best
   93:   algorithm to try next should be merge insertion.  See Knuth section
   94:   5.3.1, who credits Lester Ford, Jr. and Selmer Johnson, American
   95:   Mathematical Monthly 66 (1959), 387-389.
   96: 
   97: cp --recursive: perform dir traversals in source and dest hierarchy rather
   98:   than forming full file names.  The latter (current) approach fails
   99:   unnecessarily when the names become very long.
  100: 
  101: Remove suspicious uses of alloca (ones that may allocate more than
  102:    about 4k)
  103: 
  104: Adapt these contribution guidelines for coreutils:
  105:   http://sources.redhat.com/automake/contribute.html
  106: 
  107: 
  108: Changes expected to go in, someday.
  109: ======================================
  110: 
  111:   dd patch from Olivier Delhomme
  112: 
  113:   Andreas Gruenbacher's xattr changes
  114: 
  115:   Apply Bruno Haible's hostname changes
  116: 
  117:   test/mv/*: clean up $other_partition_tmpdir in all cases
  118: 
  119:   ls: when both -l and --dereference-command-line-symlink-to-dir are
  120:   specified, consider whether to let the latter select whether to
  121:   dereference command line symlinks to directories.  Since -l has
  122:   an implicit --NO-dereference-command-line-symlink-to-dir meaning.
  123:   Pointed out by Karl Berry.
  124: 
  125:   A more efficient version of factor, and possibly one that
  126:   accepts inputs of size 2^64 and larger.
  127: 
  128:   dd: consider adding an option to suppress `bytes/block read/written'
  129:   output to stderr.  Suggested here:
  130:     http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=165045
  131: 
  132:   Pending copyright papers:
  133:   ------------------------
  134:   ls --color: Ed Avis' patch to suppress escape sequences for
  135:     non-highlighted files
  136: 
  137:   getpwnam from Bruce Korb
  138: 
  139:   pb (progress bar) from Miika Pekkarinen
  140: 
  141:   ------------------------------
  142: 
  143: Have euidaccess.m4 check for eaccess as well as euidaccess
  144: If found, then do `#define euidaccess eaccess'.
  145: 
  146: Remove long-deprecated options.  Search case-insensitive for
  147: `deprecated' and `remove in '.  Automate this.
  148: 
  149: Add a distcheck-time test to ensure that every distributed
  150: file is either read-only(indicating generated) or is
  151: version-controlled and up to date.
  152: 
  153: Implement Ulrich Drepper's suggestion to use getgrouplist rather
  154:   than getugroups.  This affects only `id', but makes a big difference
  155:   on systems with many users and/or groups, and makes id usable once
  156:   again on systems where access restrictions make getugroups fail.
  157:   But first we'll need a run-test (either in an autoconf macro or at
  158:   run time) to avoid the segfault bug in libc-2.3.2's getgrouplist.
  159:   In that case, we'd revert to using a new (to-be-written) getgrouplist
  160:   module that does most of what `id' already does.  Or just avoid the
  161:   buggy use of getgrouplist by never passing it a buffer of length zero.
  162:   See https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=200327
  163: 
  164: remove `%s' notation:
  165:   grep -E "\`%.{,4}s'" src/*.c
  166: 
  167: remove or adjust chown's --changes option, since it
  168:   can't always do what it currently says it does.
  169: 
  170: Adapt tools like wc, tr, fmt, etc. (most of the textutils) to be
  171:   multibyte aware.  The problem is that I want to avoid duplicating
  172:   significant blocks of logic, yet I also want to incur only minimal
  173:   (preferably `no') cost when operating in single-byte mode.
  174: 
  175: Remove all uses of the `register' keyword
  176: 
  177: pr's use of nstrftime can make it malloc a very large (up to SIZE_MAX) buffer
  178: 
  179: ls.c: use gettime rather than clock_gettime, gettimeofday, time
  180: 
  181: -----
  182: 
  183: Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation,
  184: Inc.
  185: 
  186: This program is free software; you can redistribute it and/or modify
  187: it under the terms of the GNU General Public License as published by
  188: the Free Software Foundation; either version 2, or (at your option)
  189: any later version.
  190: 
  191: This program is distributed in the hope that it will be useful,
  192: but WITHOUT ANY WARRANTY; without even the implied warranty of
  193: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  194: GNU General Public License for more details.
  195: 
  196: You should have received a copy of the GNU General Public License
  197: along with this program; if not, write to the Free Software Foundation,
  198: Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.