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75 Commits

Author SHA1 Message Date
Daniel Lange 079c2abf8e Update License consistently to GPLv2 as per COPYING file 2020-10-05 10:13:12 +02:00
Christian Göttsche 42946ec113 Introduce ARRAYSIZE 2020-10-03 19:05:40 +02:00
Christian Göttsche ffc65b3827 Reorder check to avoid crash on invalid process field setting 
If using a setting from a different development version with an
unsupported process field, first dereferencing Process_fields[id] yields
to a crash:

=================================================================
==19530==ERROR: AddressSanitizer: global-buffer-overflow on address 0x000000612800 at pc 0x000000521d1a bp 0x7ffec47a5ff0 sp 0x7ffec47a5fe8
READ of size 8 at 0x000000612800 thread T0
    #0 0x521d19 in readFields .htop/Settings.c:107:40
    #1 0x51d117 in Settings_read .htop/Settings.c:141:10
    #2 0x51c0c4 in Settings_new .htop/Settings.c:382:12
    #3 0x4eafe2 in main .htop/htop.c:220:25
    #4 0x7fa450570cc9 in __libc_start_main csu/../csu/libc-start.c:308:16
    #5 0x427a59 in _start (.htop/htop+0x427a59)

0x000000612800 is located 0 bytes to the right of global variable 'Process_fields' defined in 'linux/LinuxProcess.c:24:18' (0x6118a0) of size 3936
SUMMARY: AddressSanitizer: global-buffer-overflow .htop/Settings.c:107:40 in readFields
Shadow bytes around the buggy address:
  0x0000800ba4b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0000800ba4c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0000800ba4d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0000800ba4e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0000800ba4f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
=>0x0000800ba500:[f9]f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9
  0x0000800ba510: f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9
  0x0000800ba520: f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9
  0x0000800ba530: f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9
  0x0000800ba540: f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9
  0x0000800ba550: f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9
Shadow byte legend (one shadow byte represents 8 application bytes):
  Addressable:           00
  Partially addressable: 01 02 03 04 05 06 07
  Heap left redzone:       fa
  Freed heap region:       fd
  Stack left redzone:      f1
  Stack mid redzone:       f2
  Stack right redzone:     f3
  Stack after return:      f5
  Stack use after scope:   f8
  Global redzone:          f9
  Global init order:       f6
  Poisoned by user:        f7
  Container overflow:      fc
  Array cookie:            ac
  Intra object redzone:    bb
  ASan internal:           fe
  Left alloca redzone:     ca
  Right alloca redzone:    cb
  Shadow gap:              cc
==19530==ABORTING
 2020-09-17 21:46:22 +02:00
Nathan Scott c9ecd0fa74 Revert the vim_mode setting for now, needs a rethink 
There have been too many bugs reported in vim_mode, and
the proposed fixes are increasingly fragile - hence we
have decided to back it out for now.  For reference:

   https://github.com/htop-dev/htop/issues/69
   https://github.com/htop-dev/htop/pull/37
   https://github.com/htop-dev/htop/pull/106

The whitespace changes also arrived in commit 12805f61d
not sure what that was about, but backed out as well.
 2020-09-15 09:33:58 +10:00
Hugo Musso Gualandi 9207401f97 Clean up some code duplication in the header files 
PR htop-dev/htop#70 got rid of the infrastructure for generating header
files, but it left behind some code duplication.

Some of cases are things that belong in the header file and don't need
to be repeated in the C file. Other cases are things that belong in the
C file and don't need to be in the header file.

In this commit I tried to fix all of these that I could find. When given
a choice I preferred keeping things out of the header file, unless they
were being used by someone else.
 2020-09-12 19:20:44 -03:00
Zev Weiss a1a027b9bd Axe automated header generation. 
Reasoning:
 - implementation was unsound -- broke down when I added a fairly
   basic macro definition expanding to a struct initializer in a *.c
   file.

 - made it way too easy (e.g. via otherwise totally innocuous git
   commands) to end up with timestamps such that it always ran
   MakeHeader.py but never used its output, leading to overbuild noise
   when running what should be a null 'make'.

 - but mostly: it's just an awkward way of dealing with C code.
 2020-09-03 11:58:58 -05:00
Nathan Scott 728b04bbb5 Merge branch 'ci-hwloc-job' of https://github.com/bertwesarg/htop into bertwesarg-ci-hwloc-job 2020-08-26 10:39:43 +10:00
Nathan Scott 5c5a599a2a Merge branch 'hishamhm-pull-959' 2020-08-20 14:57:30 +10:00
Nathan Scott 6b443c5da9 Merge branch 'hishamhm-pull-932' 2020-08-20 14:47:07 +10:00
Daniel Flanagan 9ed47a213b Fix whitespace 2019-10-31 11:29:28 -05:00
Daniel Flanagan 12805f61d8 Add simple vim mode 
This commit adds a "vim_mode" setting (false/`0` by default) that causes
keys to be remapped in the following way by the `ScreenManager`:

+ h -> LEFT
+ j -> DOWN
+ k -> UP
+ l -> RIGHT
+ LEFT -> h (toggle help)
+ DOWN -> j (noop)
+ UP -> k (open kill menu)
+ RIGHT -> l (lsof current process)
+ K (Shift+K) -> k (open kill menu)
+ J (Shift+J) -> K (toggle show/hide kernel threads)
+ L (Shift+L) -> l (lsof current process)

I couldn't figure out where the manpage documentation is in the repo,
though I admittedly did not look particularly hard.

I believe this change would be a welcome option for heavy vim users like myself
who would like a familiar way to get around in htop.
 2019-10-31 11:20:55 -05:00
Arnavion 1d5e6a27a0 Add a display option to hide CPU usage number from CPU meter. 2019-08-10 11:20:21 -07:00
Arnavion 4b0600d8f8 Add new display option to also show CPU frequency in CPU meters. 
The option is only implemented on Linux. On other platforms, and on Linuxes
that do not expose the relevant sysfs file, the frequency will be 0.

The "CPU average" meter does not show a frequency, only
the individual per-CPU meters.
 2019-08-09 21:34:48 -07:00
MartinJM b0e24cd5a5 Added an option to disable the mouse. 2019-07-12 21:41:09 +02:00
Hisham Muhammad f914617508 Make settings file finding sequence more straightforward 
Avoid unnecessary access() call and make code read more linearly.
 2018-02-18 20:42:17 -03:00
Hisham Muhammad 03b2581745 Only consider a read successful when the file seems valid 
Require at least the `fields` entry to be present,
so we can have a decent guess that it was indeed a settings file.
 2018-02-18 20:35:23 -03:00
Hisham Muhammad 3975e9ce5c Merge branch 'master' of https://github.com/hishamhm/htop 2017-07-26 16:16:10 -03:00
Hisham Muhammad 543d65c6ab Security review: make privilege dropping-restoring optional. 
This is/was necessary only on macOS, because you needed root in order
to read the process list. This was never necessary on Linux, and
it also raises security concerns, so now it needs to be enabled
explicitly at build time.
 2017-07-26 15:40:55 -03:00
Wael M. Nasreddine ce0cf3c457
Settings: do not emit trailing whitespace 2017-07-24 16:36:27 -07:00
Hisham Muhammad 0fa03322a9 Dynamically adjust the size of line reads 
* Dynamically adjust the size of line reads.
* Remove some more uses of fgets with arbitrary sizes.
* Fix reading of lines and width of n column.

Fixes #514.
 2016-06-19 18:55:35 -03:00
Hisham 7ededce9b5 Silence cast warning. 2016-05-30 12:22:07 -03:00
Hisham fa0c637c55 Silence warnings about seteuid return value. 
Closes #483.
 2016-05-25 21:37:07 -03:00
Hisham 820c079b14 Initialize default meter modes properly. 2016-02-02 16:15:07 +01:00
Hisham ffcf48fb74 Merge branch 'xalloc' 2016-02-02 15:58:45 +01:00
Hisham b54d2dde40 Check for failure in allocations. 2016-02-02 15:53:02 +01:00
Hisham 6434db5b6b Differentiate threads by default. 2016-01-31 12:07:48 +01:00
Michael Klein 84783bd6f0 Fix fopen mode in Settings_read() 2015-12-09 20:34:11 +01:00
Michael Klein 42b08f2233 drop privileges during Settings_read()/Settings_write() 2015-12-02 23:42:10 +01:00
David Hunt 5e602f18d5 Rename String to StringUtils. 
Fixes building on case-insensitive filesystems where String.h gets confused with <string.h>.

From d734dacea0a10d0465dad4e95b3421511e7da112 Mon Sep 17 00:00:00 2001
From: David Hunt <dhunt@iolanthe.attlocal.net>
Date: Sat, 11 Jul 2015 20:56:31 -0500
Subject: [PATCH 1/8] Rename String to StringUtils
 2015-08-19 13:45:20 -03:00
Hisham Muhammad e1e3ffad19 Ensure default matches classic htop behavior. 2015-08-12 17:24:41 -03:00
Hisham Muhammad 4d44c35519 Merge pull request #148 from nckx/display-basename 
[PATCH] New setting: "Show program path"
 2015-08-12 17:16:50 -03:00
Tobias Geerinckx-Rice 293eec4265 New setting: "Show program path" 
Add a setting to hide all but the last component from the programme
path, leaving only the "basename". Makes htop more usable on smaller
screens, or systems with longer than average paths. Off by default.

"Highlight program basename" will still be respected, to further
visually separate process names from their arguments.
 2015-08-07 14:20:14 +02:00
Hisham Muhammad f1e8a074f2 store cpuCount in an attribute 2015-05-13 15:13:55 -03:00
Hisham Muhammad 01737ed66b Reset to the default scheme, not the last one. 2015-04-09 15:44:26 -03:00
Hisham Muhammad dc4576d327 Fix saving new color scheme. 2015-04-09 15:19:31 -03:00
Hisham Muhammad 70abaadbaf Fix NULL-termination of array for later use by String_freeArray. 2015-03-25 16:36:42 -03:00
Hisham Muhammad 9ff5d2b243 Fix saving of header states, motion in Setup screen. 2015-03-16 23:01:21 -03:00
Hisham Muhammad adbfe3c3f1 Get FreeBSD tree to compile again with latest changes. 2015-03-16 03:14:20 -03:00
Hisham Muhammad be1700cf94 Isolate portable and Linux-specific process fields. 2015-03-16 01:43:04 -03:00
Hisham Muhammad e3fe3962cb Move more Linux-specific code into Linux subdir. 2015-03-15 20:29:13 -03:00
Hisham Muhammad c2108e5a48 Another mega-patch for the refactoring process. 
Kinda runs, but functionality from the original main loop
is still missing. Patience.
 2015-01-23 03:08:21 -02:00
Hisham Muhammad 3383d8e556 Sorry about the mega-patch. 
This is a work-in-progress, code is currently broken.
(Some actions, and notably, the header, are missing.)
 2015-01-21 23:27:31 -02:00
Hisham Muhammad b192af006f Decouple Header from Meter classes. 
(Yes, that's dynamic typing!)
 2014-11-27 18:38:52 -02:00
Hisham Muhammad 27da00f339 Improve function prototype, helping analysis. 2014-04-24 19:50:33 -03:00
Hisham Muhammad 4e2c2d7927 Fix resource leak. 2014-04-24 19:29:20 -03:00
Hisham Muhammad 823bdbae13 safer code, check result of lstat 2014-04-22 20:35:57 -03:00
Hisham Muhammad 6d90e58c01 alignment improvements 2014-02-27 16:35:22 -03:00
Hisham Muhammad 8ace29c267 Make CPU meter optionally account guest time in its percentages 2013-12-18 02:58:34 +00:00
Hisham Muhammad 6cfa9e0bf2 Performance improvements due to conditional parsing of IO data depending on selected fields. 
On my machine, this gives a ~20% improvement in htop process time use with the default config.
 2013-05-24 22:46:01 +00:00
Hisham Muhammad f44a8f2009 Option to update process names on every refresh 
(thanks to Rob Hoelz)
 2012-10-20 00:43:25 +00:00