Commit Graph

53 Commits

Author SHA1 Message Date
Craig Small
9c5397a941 testsuite: Add check for shared memory
Created a test process test_shm that allocates a shared memory
segment and prints the segment ID. pmap testsuite runs pmap to
check that the segment is found.

The value returned by shmget() is the same value that is printed
in the fifth column /proc/<PID>/maps

Signed-off-by: Craig Small <csmall@dropbear.xyz>
2022-04-26 22:04:05 +10:00
Craig Small
cb5fa94982 build-sys:
While the previous commit checked for a GNU environment so Hurd
compilied ok, this tripped up Cygwin. configure now explicitly tests
for the structure field rather than trying to guess through compilier
flags about what the environment tells us about signals.h

References:
 commit d39d9db079

Signed-off-by: Craig Small <csmall@dropbear.xyz>
2022-04-11 17:09:53 +10:00
Craig Small
d39d9db079 testsuite: Make test program compile on Hurd
procps fails to build from source due to usage of field si_int of struct
siginfo_t in lib/test_process.c which does not exist on GNU/Hurd.

Thanks to Svante Signell for the patch.

References:
 https://bugs.debian.org/987557

Signed-off-by: Craig Small <csmall@dropbear.xyz>
2021-10-13 07:56:39 +11:00
Jan Rybar
d293b686e4 Coverity scan findings - memleaks, unused vars, potential nullptr dereferences 2021-05-10 20:09:20 +10:00
Craig Small
bc16fa87f0 misc: Update Craig's email 2021-01-21 17:37:48 +11:00
Craig Small
86957343b0 misc: Add test_nsutils to gitignore 2020-12-17 21:43:10 +11:00
Jim Warner
ebb57668a1 build-sys: tweak make & activate some overlooked tests
This commit is just preparing for adding an Itemtables
verification test by reorganizing stuff and activating
a few previously inactive (overlooked?) test programs.

Signed-off-by: Jim Warner <james.warner@comcast.net>
2020-08-17 21:49:03 +10:00
Craig Small
557fda8f98 build-sys: Enable testing of sigqueue
The referenced commits enavled both pkill and kill to send an integer to
the killed or signalled process. The test_process now will report on the
integer if sent and the testsuite changes take advantage of this
new feature.

Another process make/destroy set had to be made as using spawn
instead of exec changes both the SID and TTY for the underlying
process, making other tests fail.

References:
 commit 7d55409b82
 commit 2b804a532a
2020-05-11 16:59:18 +10:00
Patrick Steinhardt
09a3687547 procio: fix potential out-of-bounds access when write fails
When writing to procfs via `proc_write` fails, we try to chunk the
buffer into smaller pieces to work around that issue. When searching for
the next location to split the buffer, though, we can underflow the
buffer in case the current offset is smaller than `LINELEN`. Fix the
issue by passing `cookie->offset` instead of `LINELEN` into `memrchr` in
case `cookie->offset` is smaller than `LINELEN`.

This bug can be triggered on musl-based systems, e.g. by executing

    $ sysctl kernel.printk_ratelimit=1000000000000000

As the value is out-of-range, `write` will return an error and set
`errno` to `EINVAL`. As we're only trying to write a smallish buffer
with a length smaller than `LINELEN` and as the buffer does not contain
any newlines, the call

    token = (char*)memrchr(cookie->buf+offset, '\n', LINELEN);

will underflow the buffer and crash the program.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
2019-03-04 21:55:07 +11:00
Patrick Steinhardt
70ed1a72ad procio: use the user-supplied delimiter to split large input
The `fprocopen` function allows users to specify a delimiter chacter
that is used to split very large input lines into smaller chunks. While
the code checks that the caller did actually supply the delimiter, it is
in fact never used to split the string. Instead, the hardcoded default
character ',' is always used to split the string.

Fix the issue by using `cookie->delim` instead.
2019-03-04 21:54:43 +11:00
Patrick Steinhardt
2552b97afd docs: fix "delimeter" typo in fprocopen man page 2019-03-04 21:54:24 +11:00
Qualys Security Advisory
d3ff255fa5 0041-proc/sig.c: Harden print_given_signals().
And signal_name_to_number().

---------------------------- adapted for newlib branch
. file has been moved to: lib/signals.c
. only 'signal_name_to_number()' was impacted
. function 'print_given_signals()' no longer exists
. thus the bulk of original patch no longer applicable

Signed-off-by: Jim Warner <james.warner@comcast.net>
2018-06-09 21:35:19 +10:00
Qualys Security Advisory
50b343e068 0032-proc/sig.c: Fix the strtosig() function.
Do not memleak "copy" in case of an error.

Do not use "sizeof(converted)" in snprintf(), since "converted" is a
"char *" (luckily, 8 >= sizeof(char *)). Also, remove "sizeof(char)"
which is guaranteed to be 1 by the C standard, and replace 8 with 12,
which is enough to hold any stringified int and does not consume more
memory (in both cases, the glibc malloc()ates a minimum-sized chunk).

---------------------------- adapted for newlib branch
. no longer in library, logic  now found in lib/signals.c
. craig already addressed "copy" memleak in commit beloww

Reference(s):
commit d2df396ba9

Signed-off-by: Jim Warner <james.warner@comcast.net>
2018-06-09 21:35:19 +10:00
Craig Small
61a9a54229 library: check not undef SIGLOST
sig.c had this odd logic where on non-Hurd systems it would undefine
SIGLOST. Fine for Hurd or amd64 Linux systems. Bad for a sparc which
has SIGLOST defined *and* is not Hurd.

Just check its defined, its much simpler.
2018-05-06 07:20:12 +10:00
Jim Warner
c683d9fe48 procio: fixed grammar in man page plus program comment
The only essential change was substituting 'comma' for
the word 'colon' in the man page plus program comment.

Signed-off-by: Jim Warner <james.warner@comcast.net>
2018-05-06 07:19:38 +10:00
Jim Warner
06afd10525 procio: remove glibc dependency & make a proper header
Duplicate that <libio.h> change made in master branch.

While we're at it, let's remove an unnecessary include
from procio.h and reflect in its single prototype what
those 'const char *' params are really supposed to be.

Signed-off-by: Jim Warner <james.warner@comcast.net>
2018-05-06 07:19:38 +10:00
Jim Warner
c2a29d370c sysctl: relocate the procio code to a more proper home
Now that the procio logic was removed from the library
we must move the header file, lest we break make dist.

In the process, we will relocate that source file too.

[ we'll take a slightly different approach than that ]
[ used under the master branch by exploiting those 2 ]
[ non-library directories 'include' and 'lib', while ]
[ avoiding any sysctl hard coded function prototype. ]

Signed-off-by: Jim Warner <james.warner@comcast.net>
2018-05-06 07:19:37 +10:00
Craig Small
98a5332de2 library: Move runtime signal count check to compile time
Since the value of number_of_signals is known at compile time, we can
 use a compile-time check instead. This also adds SIGLOST for the Hurd,
 uses the correct signal counts for the Hurd and FreeBSD, and only gives
 a compile-time warning when compiled on an unknown platform that it does
 not know whether the number of signals is correct.

Author: James Clarke <jrtc27@jrtc27.com>

References:
 commit bd72ba3a4b (jrtc27/procps-cross-platform)
 procps-ng/procps~!52
2017-12-23 18:01:38 +11:00
Craig Small
aa41c309dd kill: -l space between name parses correctly
This was supposed to be just a cherry-pick of the referenced
commit. However there were two problems:
 1. kill code was moved out to its own file
 2. strtosig() had a latent bug where signal numbers were not
 converted to names.

Original note:
kill -lHUP would work correctly, but kill -l HUP would not.

The list option in kill was hit by a quirk of getopt_long where an
option with an optional argument would not attempt to get the argument
beyond the space, even though a mandatory argument would do that.

The fix is a kludge to scan to the next argument and if it looks
like something we can use, use it. Lucky for us, the list option is
one where parsing can stop immediately.

Thanks to Brian Vandenberg for the way forward.

References:
 http://stackoverflow.com/questions/1052746/getopt-does-not-parse-optional-arguments-to-parameters
 https://bugs.debian.org/854407
 commit 537cea324b121f54744369425332c256aa84a181
2017-05-22 22:15:59 +10:00
Jim Warner
618a813baa misc: eliminate all those remaining gcc -Wall warnings
Reference(s):
proc/readproc.c: In function 'statm2proc'
proc/readproc.c:600:9: warning: variable 'num' set but not used [-Wunused-but-set-variable]

proc/stat.c: In function 'stat_derive_unique':
proc/stat.c:429:1: warning: no return statement in function returning non-void [-Wreturn-type]

ps/parser.c: In function 'arg_type':
ps/parser.c:1098:3: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
ps/parser.c:1099:34: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'

lib/signals.c: In function 'strtosig':
lib/signals.c:243:9: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
lib/signals.c:245:13: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'

slabtop.c: In function 'print_summary':
slabtop.c:223:29: warning: unused variable 'stats' [-Wunused-variable]

watch.c: In function 'process_ansi':
watch.c:232:5: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
watch.c:235:2: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'

Signed-off-by: Jim Warner <james.warner@comcast.net>
2017-05-22 21:38:10 +10:00
Olof Sivertsson
95ed10ff43 kill: Fix free() with bad pointer on SIG-prefixed signal-name
kill -l SIGHUP (or any other signal-name prefixed with "SIG")
would cause free() to be called with a bad pointer instead of
a pointer to what was allocated. Fix this and add test-case.
2016-09-11 09:58:55 +10:00
Jon Boden
6f8c101e2e library: Don't use SIGPWR on FreeBSD
FreeBSD doesn't have SIGPWR so makes no sense in warning and assuming
its 29.

Picked from master, but the file has moved from proc/sig.c to
library/signals.c

References:
 commit 8abd0c92ab
 https://bugs.debian/org/832148

Signed-off-by: Craig Small <csmall@enc.com.au>
2016-08-28 19:19:05 +10:00
Craig Small
d2df396ba9 misc: Few more resource leak fixes
free after malloc in signals.c
closedir after opendir in diskstat
2016-05-03 21:58:13 +10:00
Craig Small
0c78f4f954 tests: Conditionally add prctl to test process
prctl was already bypassed on Cygwin systems. This extends to
non-Linux systems such as kFreeBSD and Hurd.

References:
 https://bugs.debian.org/816237
2016-04-17 09:11:24 +10:00
Craig Small
6586f9f9ce skill: fix command line with signal, again
Application of master patch d1d2ccf

Original by Filipe Brandenburger <filbranden@google.com>

Signed-off-by: Craig Small <csmall@enc.com.au>
2016-04-11 20:59:48 +10:00
Wayne Porter
e50ad77997 Added Cygwin build support
strverscmp is included to satisfy a dependency in Cygwin.
Excluded utmp and prctl functions that are not supported currently.
2016-03-12 15:07:30 +11:00
Craig Small
03437d7dd3 A locale-independent strtod
There is a need in some utilities to have a way of accepting both
types of decimal points "." and ",". The only way seems to be to
rebuild strtod().

This new function will accept "123.456" and "123,456" as 123.456
and considers them the same number. It means we lose thousands
separator, but this is rarely used.

test scripts are added to check the function returns the proper
values. There was simpler predecessor that got stuck on negative
0 or -0.123 which these tests flushed out.

References:
2016-03-10 22:27:09 +11:00
Craig Small
f65121ef74 kill: split out from skill/snice
The first part of fixing skill/snice to use the library instead
of directly readdir()ing /proc which is what it does now.

Remove the kill code from the skill/snice code and put common
elements into lib/signals.c Not 100% sure that is the right
destination instead of a new lib file, but ok for now.

kill shares some parsing logic with skill/snice but mainly
around signal specifications. The "do it" code is very different.

Signed-off-by: Craig Small <csmall@enc.com.au>
2015-09-26 09:13:13 +10:00
Craig Small
a61f78d6e0 library: rework namespace calls
Functions related to namespaces were half-in half-out of the
procps library and didn't fit the standard naming scheme.

While struct { long ns[x]} is a bit clunky, its the only way
to "lock in" x. The alternative is to use ns_* variables.

This work was needed before pgrep could be converted.
2015-09-03 22:32:19 +10:00
Craig Small
56399212c8 library: Remove signal name from library
Procps library previously held functions that were about either
listing or finding signal names. These are not really the right
location for a library about reading procfs.

This patch handles signal related functions in two ways:

For functions purely found in skill, these have been moved back
into this binary as they are used nowhere else.

For functions used across the binaries, these have been moved
into include/signals.h and lib/signals.c. Besides formatting,
these functions are largely the same.

To assist the skill functions, two functions to access the
signal map array have been added to lib/signals.c
2015-06-29 21:52:51 +10:00
Craig Small
420cd9c7c2 Create test process
For the test suite, procps used to use sleep which would just
create a process or two to test the tools against.  Some setups
coreutils creates all programs including sleep into one blob which
means a lot of the tests fail, see issue #2

procps has its own sleep program now.
2015-06-13 15:04:31 +10:00
Filipe Brandenburger
c1c73c0d00 build-sys: merge automake subdirs into toplevel
This will be required for subdir-objects, otherwise automake will have
problems with more than one Makefile.am having rules to build the same
files.

Tested that it builds and both `make check` and `make distcheck` work.

Tested `make install` and compared the tree with the one installed
before this commit, both installed the binaries to the same locations.
The binaries are also in the same location in the build tree (for
instance, ps/pscommand is still there.)

Checked the binaries for the correct libraries linked into them. Binary
sizes matched before and after this change.

Signed-off-by: Filipe Brandenburger <filbranden@google.com>
2015-05-01 23:19:31 -07:00
Filipe Brandenburger
b56fd9d358 build-sys: split test cases in lib/ into their own files
In order to avoid compiling the same source files twice, with and
without the TEST_PROGRAM define.

Tested that the build still works and that `make distcheck` works as
expected.

Tested that the test_* programs in lib/ keep working. (Though they are
not really invoked by `make check` and in particular test_nsutils is
quite useless, test_fileutils also quite poor.)

Signed-off-by: Filipe Brandenburger <filbranden@google.com>
2015-05-01 17:43:51 -07:00
Filipe Brandenburger
90cc5460aa build-sys: add $(top_srcdir) to include search dir
This is required for out-of-tree build to work, since many source files
include e.g. proc/*.h which is not under the include/ directory.

Tested that `make distcheck` starts working after this patch.

Signed-off-by: Filipe Brandenburger <filbranden@google.com>
2015-05-01 17:09:55 -07:00
Jaromir Capik
5d818a7a6d library: fixing stdio.h include position in nsutils.c
The previous commit removes the stdio_ext.h header,
but the ns_read function calls snprintf that needs
stdio.h and therefore moving the stdio.h include
from the bottom test program to the top line.
2014-08-26 15:24:55 +02:00
Fredrik Fornwall
41f7ff3ea8 library: remove unused includes in nsutils.c
The <stdio_ext.h> include breaks building on platforms without that header and is unused in nsutils.c.

Also remove unused but harmless <error.h> include.
2014-08-26 15:24:34 +02:00
Craig Small
0f8f760307 Manpage translations in Makefiles
The translated manpage generation has moved from scripts to
Makefiles. This asists with conditional building as well, no
need to regenerate the German pgrep man page if both
the original pgrep.1 and man-po/de.po is not changed.

My Makefile-fu fails me on producing a cross-product or double
iteration for languages and man pages. Until that is solved
each man page is explicitly built. No big deal but it doesn't
look elegant in the Makefile. Languages will be picked
up automatically if they are found in man-po, man-po/top or
man-po/ps

The README describes the three-step process for translating
the files, incase I forget or someone else wants to update them.
2014-06-28 23:38:13 +10:00
Craig Small
dd6f24dbed Merge commit 'refs/merge-requests/13' of git://gitorious.org/procps/procps into merge-requests/13
Conflicts:
	pgrep.c
	ps/output.c
	ps/ps.1
2013-09-11 21:34:05 +10:00
Jim Warner
ce5e995921 library: for atexit() support, fix fileutils for EPIPE
When fileutils with stream error checking was borrowed
from GNU lib, an omission was also propagated where an
errno of EPIPE wouldn't be preserved in close_stream()
making a test for EPIPE in close_stdout() meaningless.

This patch corrects such oversight so that an errno of
EPIPE no longer produces 'write error' at program end.

( gnulib provides for optionally ignoring EPIPE, but )
( if a program chooses to ignore it, then their code )
( appears to suffer from this close_stream oversight )

Reference(s):
. original fileutilis addition
commit c7cf98b0e0
. bugzilla report
https://bugzilla.redhat.com/show_bug.cgi?id=976199
2013-06-26 17:58:56 +02:00
Aristeu Rozanski
de7b3b9222 pgrep: introduce support for namespaces
A PID should be specified with --ns:
	$ pgrep --ns 12345
which will only match the processes which belong to to the same 6
namespaces. It is also possible to specify which namespaces to test:
	$ pgrep --ns 12345 --nslist mnt,net,ipc
which will match processes that belong to the same mount, network and
IPC namespaces as PID 12345.

Signed-off-by: Aristeu Rozanski <arozansk@redhat.com>
2013-04-16 15:05:31 -04:00
Rainer Müller
838e5d8941 configure: Check for error.h
For portability, check for error.h during configure and define
HAVE_ERROR_H accordingly.

If this header is not available, emulate the functionality of error()
from glibc with an inline wrapper in include/c.h.
2013-03-20 16:32:06 +01:00
Rainer Müller
6df4fc403d configure: Check for stdio_ext.h
For portability, check for stdio_ext.h during configure and define
HAVE_STDIO_EXT_H accordingly.

If the current system does not provide this header, use a fallback for
__fpending(). This definition will not work on all systems as it relies
on internal data structures of libc. A more portable solution should be
preferred, for example by using gnulib.
2013-03-20 16:32:06 +01:00
Jim Warner
fe75e26ab6 miscellaneous: clean up trailing whitespace throughout
The entire tree's polluted with inappropriate trailing
whitespace. This commit rids our environment of all of
those useless keystrokes. Unfortunately, it sure ain't
a permanent solution and requires every contributor to
instruct their editor(s) to prevent or eliminate them.

Plus it's strongly recommended we all insert something
like what's shown below to our '.gitconfig' file so as
to provide at least some warnings when we try to apply
any patches (git am) that do contain the #@!%& things!

References(s):
~/.gitconfig excerpt ---------------------------------
[core]
  whitespace = trailing-space, space-before-tab, blank-at-eof
[apply]
  whitespace = warn
--------------------------------- ~/.gitconfig excerpt

Signed-off-by: Jim Warner <james.warner@comcast.net>
2013-03-14 12:36:47 +01:00
Sami Kerola
9e3c259fae lib/fileutils: fix compiler warnings
./lib/fileutils.c:9:5: warning: no previous declaration for 'close_stream' [-Wmissing-declarations]
./lib/fileutils.c:23:6: warning: no previous declaration for 'close_stdout' [-Wmissing-declarations]

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2012-11-06 22:28:30 +11:00
Sami Kerola
c7cf98b0e0 lib: add fileutils file with stream error checking facility
The close_stream() is copied from GNU lib. Inspiration to do this
is talk by Jim Meyering - Goodbye World! The perils of relying on
output streams in C.

Reference: http://www.irill.org/events/ghm-gnu-hackers-meeting/videos/jim-meyering-goodbye-world-the-perils-of-relying-on-output-streams-in-c
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2012-03-23 15:57:41 +01:00
Sami Kerola
ce61089059 docs: clarification to license headers in files
Add license header to all files.  The summary of licensing is below,
taken from Craig Small's email which is referred in commit message
tail.

sysctl and pgrep are GPL 2+
The rest is LGPL 2.1+

Reference: http://www.freelists.org/post/procps/Incorrect-FSF-address-in-the-license-files,8
Bug-Redhat: https://bugzilla.redhat.com/show_bug.cgi?id=797962
CC: Craig Small <csmall@enc.com.au>
CC: Jaromir Capik <jcapik@redhat.com>
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2012-03-03 18:41:11 +11:00
Sami Kerola
56ed9826a5 test: add lib/strutils check
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2012-03-03 18:36:29 +11:00
Sami Kerola
4ffc7c4f20 strutils: reindent the file
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2012-02-11 21:42:39 +01:00
Sami Kerola
cac93d35d0 build-sys: use dist-xz
Even as conservative project as coreutils has switched to xz distributions so
neither should we have any reason to use gz and waste space & bandwidth.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2012-01-08 23:02:17 +01:00
Craig Small
fb11e1fe0a Changed the err and warns to macros
err and warn are BSD format but they are not recommended by library
developers.  However their consiseness is useful!

The solution is to use some macros that create xerr etc which then
just map to the error() function.  The next problem is error() uses
program_invocation_name so we set this to program_invovation_short_name

This is a global set but seems to be the convention (or at least errors
are on the short name only) used everywhere else.
2012-01-03 18:48:43 +11:00