Documentation/TODO

   1
   2  Note that items with (!) have high priority.
   3
   4 tests
   5 -----
   6   - add MacOS to GitHub Actions (.github/workflows/cibuild.yml). Note, we have used
   7     Mac in Travis-CI (see .travis.yml).
   8
   9   - add Coverity to GitHub Actions (see for example .github/workflows/coverity.yml
  10     in systemd repo).
  11
  12 script (lib/pty-session.c)
  13 --------------------------
  14   - (!) add #ifdefs and optional code for non-signalfd() systems
  15
  16
  17 docs
  18 ----
  19   - use terminal hyperlinks (for example for --help)
  20     try on terminal: printf 'For more details see \e]8;;man:fdisk(8)\e\\fdisk(8)\e]8;;\e\\.\n'
  21     https://gist.github.com/egmontkob/eb114294efbcd5adb1944c9f3cb5feda
  22
  23 rev
  24 ---
  25   - support huge input lines (for example read input by small fixed buffer
  26     rather than try allocate all buffer for a whole line)
  27     see: https://github.com/karelzak/util-linux/issues/972
  28
  29 col
  30 ---
  31   - use unsigned sizes for columns and lines
  32   - check for limits to avoid segfaults
  33   - make it more robust
  34   https://github.com/karelzak/util-linux/issues/749
  35
  36 cal
  37 ---
  38    - support another --reforms, see for example freebsd version
  39      https://github.com/freebsd/freebsd/blob/master/usr.bin/ncal/ncal.c#L72
  40
  41 lscpu
  42 -----
  43   - read cpuid and uname information from file if --sysroot is specified, then
  44     we can prepare regression tests completely independent on hw and architecture.
  45
  46 lsblk
  47 -----
  48   - currently it does not show mountpoint for all devices in btrfs RAID. It's because
  49     /proc/#/mountinfo contains reference to the one device only. Maybe we can add some
  50     btrfs specific code to provide a better output for FS based stacks. Not sure.
  51     https://bugzilla.redhat.com/show_bug.cgi?id=1084453
  52
  53 nsenter(1)
  54 ----------
  55  - read the default UID and GID from the target process.
  56    http://thread.gmane.org/gmane.linux.utilities.util-linux-ng/9553/focus=9585
  57
  58 hwclock
  59 ------
  60  - use /var/lib/hwclock/drift to store hw-clock drift numbers.
  61  - use /etc/adjtime as read-only for UTC/LOCAL information only
  62  - the /var/lib/hwclock/drift should be implemented backwardly compatible,
  63    it means use the file only if exists, otherwise follow /etc/adjtime
  64
  65 bash completion
  66 ---------------
  67 - Optional argument handling requires user to press backspace to get
  68   argument completion.
  69 - Comma separated value, e.g., --output 'value1,value2', are not
  70   completed for users.
  71
  72 libmount (mount/umount)
  73 -----------------------
  74
  75  - mnt_context_get_excode() does not return error messages from /sbin/[u]mount.<type>
  76    external helpers. It is disadvantages in same cases (non-terminal progarms).
  77    The solution is to use pipe(), keep output from helper in memory and return it later
  78    by mnt_context_get_excode() (or mnt_context_get_helper_output(), etc.). This feature
  79    should be optional and disabled by default.
  80    see: https://github.com/karelzak/util-linux/issues/1208
  81
  82  - add --onlyonce to force mount(8) to check if mountpoint is already used. Now
  83    "already mounted" detection is used for --all only. The problem is if you
  84    call "mount <mountpoint>" more than once for in fstab defined tmpfs (or network
  85    filesystem etc.). In this case kernel does not return EBUSY, but a new instance
  86    of the FS is created. https://github.com/karelzak/util-linux/issues/448
  87    (... just idea, maybe wrong idea)
  88
  89 partx
  90 -----
  91
  92  - support mapping by device-mapper if argv[0] is "kpartx" or --dm option is used.
  93
  94
  95 getopt
  96 ------
  97   It would be great if getopt could optionally ignore unknown options.
  98   Currently, it outputs -- for every option it doesn't recognize but leaving the
  99   option as it is could beneficial wrapper scripts which could then pass the
 100   options they don't recognize as they are to the command they are wrapping.
 101   https://github.com/karelzak/util-linux/issues/701
 102
 103 docs
 104 ----
 105
 106  - (!) use something better than gtk-doc for libmount and libblkid (doxyden?)
 107
 108  - (!) add API documentation to libuuid
 109
 110  - (!) rewrite man pages to AsciiDoc and generate final man pages by Asciidoctor & Docbook
 111
 112 login-utils:
 113 -----------
 114
 115   - consolidate newgrp(1)
 116     * we have "su --group/--supp-group" to switch between groups, newgrp(1) in
 117       util-linux and shadow-utils (and sg(1) alias in shadow-utils)
 118     * the unique functionality provided by newgpr(1) is support for group
 119       passwords [/etc/gshadow] -- do we really need this functionality?
 120     * maybe we can mark group-passwords as deprecated, and replace sg(1) and
 121       newgpr(1) with su(1) code. The another way is to ask for group password in
 122       su --group too.
 123     * note that shadow-utils newgpr(1) provides support for syslog and audit log.
 124
 125
 126 libblkid
 127 --------
 128
 129  - extend ZFS proper to scan for more uberblocks if BLKID_SUBLKS_MAGIC flag is set.
 130    This solution will make wipefs(8) more usable as ZFS is extremely variable with
 131    additional root blocks locations. See  https://github.com/karelzak/util-linux/issues/1228
 132
 133  - (!) add support for BitLocker Drive Encryption
 134    https://github.com/karelzak/util-linux/issues/617
 135    https://github.com/libyal/libbde/blob/master/documentation/BitLocker%20Drive%20Encryption%20(BDE)%20format.asciidoc
 136
 137  - (!) add support for dasd PT (used for example on s390)
 138
 139 libfdisk
 140 --------
 141
 142  - add support for Apple Partition Map (see libblkid/src/partitions/mac.c)
 143    http://en.wikipedia.org/wiki/Apple_Partition_Map
 144
 145  - add support for nested PT (e.g. hybrid MBR) to scripts
 146    * add "nested-label:" block to sfdisk --dump
 147    * add "nested-partitiontable" to sfdisk --JSON
 148    * support nested labels parsing from dump
 149    see https://github.com/karelzak/util-linux/issues/850
 150
 151 sfdisk
 152 ------
 153
 154  - don't backup PT in interactive mode before write to the devices is requested,
 155    see https://github.com/karelzak/util-linux/issues/852
 156
 157 misc
 158 ----
 159
 160  - add mllockall() and SCHED_FIFO to hwclock,
 161    see http://lkml.org/lkml/2008/10/12/132
 162
 163
 164 ---------------
 165 exotic requests
 166 ---------------
 167
 168  - add SELinux security contexts support to the 'ipcs' utility
 169    http://bugzilla.redhat.com/show_bug.cgi?id=225342
 170
 171    Would be great to list the current system IPC Objects with their respective
 172    security labels (where allowed) with something like 'ipcs -Z' - following the
 173    way other tools reports those.
 174
 175