Commit Graph

36 Commits

Author SHA1 Message Date
Eitan Adler
468910cd7a top(1): permit sub-second delay times
This removes the getuid check for delay==0. It didn't prevent users from
writing similar programs in the general case. In theory, if top(1) is
among one of the few restricted programs you're allowed to run, it may
have helped a little, but there are better ways of handling that case.
2018-06-10 00:02:56 +00:00
Eitan Adler
ef436ca6a6 top(1): handle specific pids better
When told to watch a specific pid, don't filter idle, system, or self
processes. The summary at the top will still flip correctly though.
2018-06-09 23:08:02 +00:00
Eitan Adler
d73bfd43b2 top(1): implement additional missing long options 2018-06-09 22:30:10 +00:00
Eitan Adler
c388909b8d top(1): Implement long options
This also documents some reserved or differing options from top's
original upstream.
2018-06-09 21:40:24 +00:00
Eitan Adler
dd0bdd6b45 top(1): allow starting with -T flag 2018-06-09 20:06:06 +00:00
Eitan Adler
fc36f5a7cb top(1): use a different command to toggle tid vs pid
- By popular demand, implement a different switch ("T") for toggling
between thread id and process id.
- Add an assert that the size of command chars is as expected.
- Also clean up some messiness I found when implementing this.
- Further document the new flag.

Requested by:	flo, ronald-lists@klop.ws, bapt
PR:		139389 (for the record)
X-MFC-With:	r334474
2018-06-09 02:14:33 +00:00
Eitan Adler
d408c8f742 top(1): fix several style & const related issues
- use parens for return
- put function names on newline
- sprinkle const where possible
2018-06-08 01:55:47 +00:00
Eitan Adler
8d0d26767b top(1): include what you use
- Change headers to more closely match what we use
- use more standard functions instead of bzero, bcmp, bcopy
- Add myself to authors.

Tested with: base clang (amd64), gcc 9 (amd64), base clang (i386), base
gcc (mips)
2018-06-04 04:59:32 +00:00
Eitan Adler
eae589f1ce top(1): another pass of cleanup
- avoid the need to call a function to get size of known array. I'll
likely re-arrange some of the indirect in a later to avoid the magic
constants.
- use correct type
- add const
- replace caddr_t with void*. This corrects an alignment warning.
- remove duplicated include from immediately prior commit

Under base clang we're now down to:
- 3 warning in top.c, 1 warning in mahcine.c,  4 warning in display.c,
- 1 warning in utils.c

Tested with base clang, gcc7, gcc9, base gcc (mips)
2018-06-03 23:40:54 +00:00
Eitan Adler
9f8096e339 top(1): top warnings and cleanup
- Add const where helpful
- add missing 'static' for file-local functions
- use nitems where possible
- convert manual abort() to assert
- use strndup instead of homegrown version

Tested with clang, gcc7, and gcc9
2018-06-03 22:42:54 +00:00
Eitan Adler
01a55f006a top(1): partial revert of r334517
In fixing issues with uid > INT_MAX, I broke the uid without username
case. The latter is more important so return the old state.

Discussed with:	allanjude
2018-06-03 05:20:11 +00:00
Eitan Adler
b7128a09ce top(1): remove chdir to /
While this came out of a conversation in IRC, it turn out that some
people don't like it. Since this was a courtesy feature, just remove it.
2018-06-03 05:07:46 +00:00
Eitan Adler
c51e28f46f top(1): Fix two speeling errors I introduced 2018-06-02 22:12:57 +00:00
Eitan Adler
f32efe0205 top(1): chdir to / as init; remove unneeded comment
- chdir to / to allow unmounting of wd
- remove warning about running top(1) as setuid. If this is a concern we
should just drop privs instead.
2018-06-02 22:06:27 +00:00
Roman Bogorodskiy
51b29cb7b3 top: add -p option and p command to only show a single process
Allow to show only a single process specified by PID. This could
be done either by running top like 'top -p PID' or using the 'p' command
inside top.

Reviewed by:	eadler
Approved by:	eadler
Obtained from:	OpenBSD
Differential Revision:	https://reviews.freebsd.org/D15501
2018-06-02 15:52:18 +00:00
Eitan Adler
1978939544 top(1): Use uid_t for uid rather than 'int'
Remove unneeded define while here.
2018-06-02 03:54:50 +00:00
Eitan Adler
0b2f6ed144 top(1): Use standard boolean rather than homegrown alternative 2018-06-02 03:25:15 +00:00
Eitan Adler
f6234b51bf top(1): ansify, style(9). and nits
- Prefer using ansi prototypes rather than C prototypes
- Keep type on separate line from name of function
- Try to keep things const where possible. This will help get to WARNS=6
- switch to "bool" where it makes sense
2018-06-02 00:02:15 +00:00
Eitan Adler
bc875b45c5 top(1): unbreak build with gcc7; fix varargs
- use correct function for varargs argument
- allow build to complete with gcc7 at current WARNS

Reported by:	jhibbits, ian
2018-05-22 02:13:04 +00:00
Eitan Adler
6ffc72df9d top(1): fix build
Remove 'top.local.hs'. This was not noticed since
/srv/obj/fbsd/srv/src/freebsd/svn/head/amd64.amd64/usr.bin/top/top.local.h
existed locally on my machine despite "make clean". Only fully removing
the objdir allowed me to observe the error directly.

Pointyhat to:	me
2018-05-21 09:43:50 +00:00
Eitan Adler
1b7645c629 top(1): modernize a bit; reduce warnings
- Replace caddr_t with "void *". This reduces
the number of warnings at WARNS=6
- use "static" where possible
- sprinkle const where possible

This leaves at WARNS=6:
35 warnings in top.c
88 warnings in machine.c
7 warnings in commands.c

all of which are either "incompatible-pointer-types-discards-qualifiers"
or "cast-qual"
2018-05-21 09:25:21 +00:00
Eitan Adler
00157b4c04 Revert r333969 which contained one too many changes 2018-05-21 09:20:26 +00:00
Eitan Adler
bfb79c2ccc top(1): modernize a bit; reduce warnings
- Replace caddr_t with "void *". This reduces
the number of warnings at WARNS=6
- use "static" where possible
- sprinkle const where possible

This leaves at WARNS=6:
35 warnings in top.c
72 warnings in machine.c
5 warnings in commands.c

all of which are either "incompatible-pointer-types-discards-qualifiers"
or "cast-qual"
2018-05-21 09:18:01 +00:00
Eitan Adler
5ef89dbfa7 top(1): further unconditionally assume we're on FreeBSD 2018-05-21 04:40:20 +00:00
Eitan Adler
1d6a4ba350 top(1): build with WARNS=3
This fixes everything but
-Wincompatible-pointer-types-discards-qualifiers
2018-05-21 03:58:15 +00:00
Eitan Adler
a5ca08ed94 top(1): fix several more warnings 2018-05-21 03:36:16 +00:00
Eitan Adler
fcfaa4734c top(1): pull function declarations and externs into headers 2018-05-21 01:16:26 +00:00
Eitan Adler
666cf87393 top(1): clean much of WARNS=3 issues
There is still one glaring issue: new_message is not a protoype, but
can't be trivially converted since it uses K&R style var-args.
2018-05-21 00:53:42 +00:00
Eitan Adler
668af25d2e top(1): pull configuration directly into header files
This sets configuration variables directly in the various header files,
avoiding the need to have special logic in our Makefile to build the
header.
2018-05-20 23:37:30 +00:00
Eitan Adler
4b9ca404c5 top(1): set max username length based on system constant
This changes previous behavior of calculating it at startup based on
the current max username length.

This is done because:
- it is in theory possible for the max length to change at run-time
  (e.g., a new user is added after top starts running)
- on machines with many users this delays startup significantly

PR:		20799
PR:		89762
Reported by:	ob@e-Gitt.NET
Reported by:	wkwu@Kavalan.csie.NCTU.edu.tw
Reported on:	2000-08-23 and 2005-11-30
2018-05-20 23:19:09 +00:00
Eitan Adler
b3c88c289c top(1): Quiesce several warnings
This is all warnings at level six (6) that are not
char-subscripts, incompatible-pointer-types,
sign-compare, switch, int-conversion,
missing-variable-declarations, cast-qual, cast-align

Some warnings that are fixed by this commit are:
shadow, strict-prototypes, missing-prototypes, pointer-arith,
unused-parameter, unused-const-variable, and several others
2018-05-20 02:14:27 +00:00
Eitan Adler
98c299e062 top(1): remove use of 'register' keyword
This keyword is meaningless is obscures future diffs that help clear up
warnings in top.
2018-05-20 01:32:27 +00:00
Eitan Adler
caee48830b top(1): unconditionally assume we are running on FreeBSD
This allows us to remove a special header and more specifically just the
system headers we want.
2018-05-19 23:19:24 +00:00
Eitan Adler
8a133278b7 top(1): unconditionally provide 'FreeBSD' as a version 2018-05-19 23:04:42 +00:00
Eitan Adler
946e91ab0c top(1): assume that we're building on FreeBSD
This allows us to avoid the ifdefs that we set unconditionally.
2018-05-19 22:59:58 +00:00
Eitan Adler
3be6ef0659 top(1): Migrate top to usr.bin
We've been maintaining top(1) for a long time, and the upstream
hasn't existed/been used in similarly as long. Make it clear that we own
top(1)

Tested with 'make universe'. Everything passed except MIPS which failed
for unrelated reasons. Install also tested for amd64.

Reviewed by:		sbruno
No objections:		imp, mmacy
Differential Revision:	https://reviews.freebsd.org/D15387
2018-05-19 22:40:23 +00:00