htop - an interactive process viewer
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Hisham Muhammad 03f17688ad Handle unexpected values for character passed to isalnum
It seems that certain negative integer values can crash isalnum().
Let's protect against those.

Fixes #711.
2018-02-05 10:59:20 +01:00
darwin Darwin: disable thread reading due to bug in macOS High Sierra 2018-02-04 08:59:29 +01:00
dragonflybsd Security review: check results of snprintf. 2017-07-27 16:07:50 -03:00
freebsd Security review: check results of snprintf. 2017-07-27 16:07:50 -03:00
linux parseBatInfo: check `line` for NULL before passing it to String_getToken() 2018-02-04 17:04:47 +01:00
openbsd Interpret TTY_NR column on Linux, 2016-10-01 03:09:04 -03:00
scripts make script version agnostic 2017-07-27 17:02:01 -04:00
unsupported Issue #502 fix SID colunm header width 2017-02-05 00:10:29 +01:00
.editorconfig add editorconfig file to give hints to editors 2015-10-05 11:13:17 +02:00
.gitignore .gitignore vim & nano swp files 2017-07-22 22:34:30 -05:00
.travis.yml travis-ci should really detect autogen.sh... 2015-11-19 13:14:20 -02:00
AUTHORS Initial import. 2006-03-04 18:16:49 +00:00
Action.c Make 'c' key work with threads as well. 2017-09-14 17:10:39 -03:00
Action.h Auto-follow process after a search. 2016-05-05 10:30:06 -03:00
Affinity.c Portable affinity using hwloc 2016-02-14 19:57:29 -02:00
Affinity.h Portable affinity using hwloc 2016-02-14 19:57:29 -02:00
AffinityPanel.c Security review: check results of snprintf. 2017-07-27 16:07:50 -03:00
AffinityPanel.h Sorry about the mega-patch. 2015-01-21 23:27:31 -02:00
AvailableColumnsPanel.c Security review: check results of snprintf. 2017-07-27 16:07:50 -03:00
AvailableColumnsPanel.h Sorry about the mega-patch. 2015-01-21 23:27:31 -02:00
AvailableMetersPanel.c Security review: check results of snprintf. 2017-07-27 16:07:50 -03:00
AvailableMetersPanel.h Sorry about the mega-patch. 2015-01-21 23:27:31 -02:00
BatteryMeter.c Security review: check results of snprintf. 2017-07-27 16:07:50 -03:00
BatteryMeter.h Move platform-dependent parts of Linux battery meter. 2014-11-27 21:04:57 -02:00
COPYING Resolve license incompatibility issues, 2010-02-24 21:13:45 +00:00
CPUMeter.c Security review: check results of snprintf. 2017-07-27 16:07:50 -03:00
CPUMeter.h Calculate CPU averages on Darwin (See #295). 2015-10-23 13:46:21 -02:00
CRT.c Fix color behavior on some terminals. 2018-02-05 07:20:27 +01:00
CRT.h Fix color behavior on some terminals. 2018-02-05 07:20:27 +01:00
CategoriesPanel.c Mark some things as const 2017-07-22 22:34:30 -05:00
CategoriesPanel.h Sorry about the mega-patch. 2015-01-21 23:27:31 -02:00
ChangeLog Bump version to 2.1.0 2018-02-04 20:13:55 +01:00
CheckItem.c Avoid future confusions with how default values are set. 2015-08-12 17:29:32 -03:00
CheckItem.h Avoid future confusions with how default values are set. 2015-08-12 17:29:32 -03:00
ClockMeter.c Rename Meter.setValues() functions to updateValues() 2016-05-04 13:39:26 +08:00
ClockMeter.h Changes in object model: separate class objects to store vtable. Also, nicer UTF-8 display of big numbers. 2012-12-05 15:12:20 +00:00
ColorsPanel.c Fix color behavior on some terminals. 2018-02-05 07:20:27 +01:00
ColorsPanel.h Make the implementation of color schemes declarative. 2015-02-03 22:30:05 +01:00
ColumnsPanel.c fix fallthough comments for GCC 7.x 2017-10-23 14:27:33 -04:00
ColumnsPanel.h Sorry about the mega-patch. 2015-01-21 23:27:31 -02:00
DisplayOptionsPanel.c Mark some things as const 2017-07-22 22:34:30 -05:00
DisplayOptionsPanel.h Changes in object model: separate class objects to store vtable. Also, nicer UTF-8 display of big numbers. 2012-12-05 15:12:20 +00:00
EnvScreen.c Security review: make privilege dropping-restoring optional. 2017-07-26 15:40:55 -03:00
EnvScreen.h refactor *Screen classes, add InfoScreen superclass 2016-01-12 06:00:58 -02:00
FunctionBar.c Mark some things as const 2017-07-22 22:34:30 -05:00
FunctionBar.h Mark some things as const 2017-07-22 22:34:30 -05:00
Hashtable.c Check for failure in allocations. 2016-02-02 15:53:02 +01:00
Hashtable.h major header cleanup 2011-12-26 21:35:57 +00:00
Header.c Security review: check results of snprintf. 2017-07-27 16:07:50 -03:00
Header.h Fix macro Header_forEachColumn 2016-05-07 14:57:51 +08:00
HostnameMeter.c Rename Meter.setValues() functions to updateValues() 2016-05-04 13:39:26 +08:00
HostnameMeter.h Changes in object model: separate class objects to store vtable. Also, nicer UTF-8 display of big numbers. 2012-12-05 15:12:20 +00:00
INSTALL Update INSTALL text from autoconf-2.69 2016-05-08 14:35:20 +08:00
IncSet.c Mark some things as const 2017-07-22 22:34:30 -05:00
IncSet.h Auto-follow process after a search. 2016-05-05 10:30:06 -03:00
InfoScreen.c Mark some things as const 2017-07-22 22:34:30 -05:00
InfoScreen.h refactor *Screen classes, add InfoScreen superclass 2016-01-12 06:00:58 -02:00
ListItem.c Security review: check results of snprintf. 2017-07-27 16:07:50 -03:00
ListItem.h Sorry about the mega-patch. 2015-01-21 23:27:31 -02:00
LoadAverageMeter.c Security review: check results of snprintf. 2017-07-27 16:07:50 -03:00
LoadAverageMeter.h Changes in object model: separate class objects to store vtable. Also, nicer UTF-8 display of big numbers. 2012-12-05 15:12:20 +00:00
MainPanel.c Mark some things as const 2017-07-22 22:34:30 -05:00
MainPanel.h Make sure a pointer fits in the argument! 2016-05-25 16:46:47 -03:00
Makefile.am Enh: Add support for backtrace using execinfo 2017-04-21 16:36:19 +02:00
MemoryMeter.c Rename Meter.setValues() functions to updateValues() 2016-05-04 13:39:26 +08:00
MemoryMeter.h Changes in object model: separate class objects to store vtable. Also, nicer UTF-8 display of big numbers. 2012-12-05 15:12:20 +00:00
Meter.c Clarify we are looking for the null termination 2018-02-04 17:02:30 +01:00
Meter.h Rename Meter.setValues() functions to updateValues() 2016-05-04 13:39:26 +08:00
MetersPanel.c fix fallthough comments for GCC 7.x 2017-10-23 14:27:33 -04:00
MetersPanel.h Mouse-friendly functions bar for meters panel 2016-07-16 21:13:46 +08:00
NEWS cleanup old stuff 2011-11-21 02:58:34 +00:00
Object.c Check for failure in allocations. 2016-02-02 15:53:02 +01:00
Object.h Check for failure in allocations. 2016-02-02 15:53:02 +01:00
OpenFilesScreen.c Security review: check results of snprintf. 2017-07-27 16:07:50 -03:00
OpenFilesScreen.h refactor *Screen classes, add InfoScreen superclass 2016-01-12 06:00:58 -02:00
Panel.c Handle unexpected values for character passed to isalnum 2018-02-05 10:59:20 +01:00
Panel.h Added Ctrl+A and Ctrl+E to go to beginning and end of line. 2016-06-15 12:45:23 -03:00
Process.c Add support for Linux TASK_IDLE 2018-02-04 16:44:21 +01:00
Process.h Add support for Linux TASK_IDLE 2018-02-04 16:44:21 +01:00
ProcessList.c Fix: infinite loop in tree view on macOS 2018-02-04 16:51:06 +01:00
ProcessList.h Portable affinity using hwloc 2016-02-14 19:57:29 -02:00
README Point users to the official release tarballs. 2016-08-23 15:43:27 -03:00
README.md Add README.md for Github 2014-02-03 09:11:39 -02:00
RichString.c Check for failure in allocations. 2016-02-02 15:53:02 +01:00
RichString.h Introduce CLAMP macro. Unify all MIN(MAX(a,b),c) uses. 2016-01-15 20:26:01 +08:00
ScreenManager.c Added Ctrl+A and Ctrl+E to go to beginning and end of line. 2016-06-15 12:45:23 -03:00
ScreenManager.h Move FunctionBar inside Panel 2015-03-23 15:26:56 -03:00
Settings.c Merge branch 'master' of https://github.com/hishamhm/htop 2017-07-26 16:16:10 -03:00
Settings.h Merge pull request #148 from nckx/display-basename 2015-08-12 17:16:50 -03:00
SignalsPanel.c Security review: check results of snprintf. 2017-07-27 16:07:50 -03:00
SignalsPanel.h Changes in object model: separate class objects to store vtable. Also, nicer UTF-8 display of big numbers. 2012-12-05 15:12:20 +00:00
StringUtils.c free(NULL) is a valid no-op, so let's make String_freeArray(NULL) valid too. 2016-08-24 18:12:35 -03:00
StringUtils.h Optimize Strings_startWith() 2016-08-11 10:49:35 +08:00
SwapMeter.c Rename Meter.setValues() functions to updateValues() 2016-05-04 13:39:26 +08:00
SwapMeter.h use dynamic units for text display 2015-08-27 06:13:27 +02:00
TESTPLAN Fix failing stuff. 2015-04-09 15:56:43 -03:00
TasksMeter.c htop scans /proc to determine how many running tasks exist. Since that 2018-01-23 14:11:47 -02:00
TasksMeter.h Changes in object model: separate class objects to store vtable. Also, nicer UTF-8 display of big numbers. 2012-12-05 15:12:20 +00:00
TraceScreen.c Security review: check results of snprintf. 2017-07-27 16:07:50 -03:00
TraceScreen.h refactor *Screen classes, add InfoScreen superclass 2016-01-12 06:00:58 -02:00
UptimeMeter.c Security review: check results of snprintf. 2017-07-27 16:07:50 -03:00
UptimeMeter.h Move UptimeMeter back into cross-platform code. 2014-11-27 19:34:47 -02:00
UsersTable.c Check for failure in allocations. 2016-02-02 15:53:02 +01:00
UsersTable.h major header cleanup 2011-12-26 21:35:57 +00:00
Vector.c Check for failure in allocations. 2016-02-02 15:53:02 +01:00
Vector.h Changes in object model: separate class objects to store vtable. Also, nicer UTF-8 display of big numbers. 2012-12-05 15:12:20 +00:00
XAlloc.c Security review: check results of snprintf. 2017-07-27 16:07:50 -03:00
XAlloc.h Security review: check results of snprintf. 2017-07-27 16:07:50 -03:00
autogen.sh Simplify autogen.sh 2016-02-14 22:36:40 +01:00
configure.ac Check for pkgconfig's presence before using it. 2018-02-05 10:22:16 +01:00
htop.1.in Typo in man page 2018-02-04 17:01:39 +01:00
htop.c Remove old commented code. 2016-02-19 13:39:38 -02:00
htop.desktop Add Comment[zh_CN] and GenericName[zh_CN] into htop.desktop 2017-03-24 01:45:10 +08:00
htop.h Sorry about the mega-patch. 2015-01-21 23:27:31 -02:00
htop.png Updated icon! 2014-04-09 14:47:58 -03:00
test_spec.lua Fix typos, by @Gelma. 2016-08-30 12:37:31 -03:00

README.md

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htop

by Hisham Muhammad hisham@gobolinux.org (2004 - 2016)

Introduction

This is htop, an interactive process viewer. It requires ncurses. It is developed primarily on Linux, but we also have code for running under FreeBSD and Mac OS X (help and testing are wanted for these platforms!)

This software has evolved considerably over the years, and is reasonably complete, but there is always room for improvement.

Comparison between htop and classic top

  • In htop you can scroll the list vertically and horizontally to see all processes and full command lines.
  • In top you are subject to a delay for each unassigned key you press (especially annoying when multi-key escape sequences are triggered by accident).
  • htop starts faster (top seems to collect data for a while before displaying anything).
  • In htop you don't need to type the process number to kill a process, in top you do.
  • In htop you don't need to type the process number or the priority value to renice a process, in top you do.
  • In htop you can kill multiple processes at once.
  • top is older, hence, more tested.

Compilation instructions

This program is distributed as a standard autotools-based package. See the INSTALL file for detailed instructions.

When compiling from a release tarball, run:

./configure && make

For compiling sources downloaded from the Git repository, run:

./autogen.sh && ./configure && make

By default make install will install into /usr/local, for changing the path use ./configure --prefix=/some/path.

See the manual page (man htop) or the on-line help ('F1' or 'h' inside htop) for a list of supported key commands.

If not all keys work check your curses configuration.

License

GNU General Public License, version 2 (GPL-2.0)