XXX from Tor: "The shell can also go into a similar loop if the child was
killed by signal 127, since the shell would believe the child to have
only stopped (WIFSTOPPED() macro returns nonzero value). Disallowing
signals 127 and 128 will fix that problem." See kern/19402 for details.
PR: bin/66242
Submitted by: tegge
Analysis and testcase by: demon
MFC after: 3 weeks
printing of the process environment will fail silently.
-define a function which will check to see if procfs is mounted on /proc
-Implement this test if the user specified -e
-If procfs is not mounted on /proc and -e was specified, print a warning.
informing the user that procfs(5) is required.
Reviewed by: wes, rwatson
WRT handling file and link names that reach the allowed
maximum for old tar and ustar archive formats.
PR: bin/40466
Submitted by: Cyrille Lefevre <email in the PR> (portions)
Reviewed by: freebsd-arch (silence)
MFC after: 1 month
to PRECIOUSLIB from bsd.lib.mk. The side effect of this
is making installing the world under jail(8) possible by
using another knob, NOFSCHG.
Reviewed by: oliver
instead of just !, this allows one to more easily locate/understand
the section of the manpage in question.
Additional wording correction by: keramida
Reviewed by: keramida
removing directories or if more than 3 files are listed in the
command line.
This feature is intended to provide a safe net but not being too
annoying like having "rm -i" for every deleting operations, and
is generally good for both newbies and power users, preventing
them from being so easily run into ``rm -rf /'', ``rm -rf *''
and so forth.
Originally implemented by Matthew Dillon for DragonFly, plus
some improvements done by various DragonFly contributors.
Approved by: murray (mentor; the original dillon's version)
Discussed with: des
Obtained from: DragonFly's bin/rm/
rm.c rev. 1.4 - 1.8
rm.1 rev. 1.3 - 1.4
MFC After: 1 month
occurrences of "/" in the argument list. This corresponds to Enhancement
Request Number 5 in the Austin Group TC2 Aardvark's XCU Defects Report
(<URL:http://www.opengroup.org/austin/aardvark/finaltext/xcubug.txt>).
Further discussion is available in the Austin Group mailing list archives
(<URL:http://www.opengroup.org/austin/mailarchives/>, "Defect in XCU rm")
and for Austin Group members, in the Austin Group Interpretations archive
(<URL:http://www.opengroup.org/austin/interps/>, AI-019)
This commit makes that check conditional on !POSIXLY_CORRECT, since it
is not strictly correct according to the current version of the standard
(but is expected to be correct according to the next version, and has
already been adopted by Solaris).
considered an error according to the Open Group Base Specification.
PR: standards/45738
Submitted by: Matthias Andree <matthias.andree@web.de>
MFC after: 3 days
to specify an alternative padding character when using a conversion
mode, or when using noerror with sync and an input error occurs. This
facilities reading old and error-prone media by allowing the user to
more effectively mark error blocks in the output stream.
on March 31 won't take you to March 2 or 3 (now the result will
be the last day of February.)
In general, now stepping by months from the last days of the current
month A will take you to the very last day of the target month B if
B is shorter than A.
The previous version would just step to March 31 and rely on mktime(3)
to correct the date. Despite its simplicity, such way was counter-intuitive
to users and caused pain to shell script writers.
Noticed by: Igor Timkin <ivt at gamma dot ru>
Approved by: brian
MFC after: 2 weeks
of releases. The -DNOCRYPT build option still exists for anyone who
really wants to build non-cryptographic binaries, but the "crypto"
release distribution is now part of "base", and anyone installing from a
release will get cryptographic binaries.
Approved by: re (scottl), markm
Discussed on: freebsd-current, in late April 2004
invalid information will be printed if the -t flag is specified.
$ df -t ufs
Filesystem 1K-blocks Used Avail Capacity Mounted on
/dev/ad0s1a 495726 139944 316124 31% /
/dev/ad0s1e 253678 6438 226946 3% /tmp
/dev/ad0s1f 56206340 13594248 38115586 26% /usr
/dev/ad0s1d 694126 19812 618784 3% /var
/dev/ad0s1d 694126 19812 618784 3% /var
$
Note that the mount point which is not accessible shows
up as the previous file system that was printed. The reason
for this is that df -t will call statfs(2) on the pathname
supplied by getfsstat(2).
This is done to refresh the file system statistics in the
event that a previous file system had a long delay in
providing its stats.
This change affects the df utility in the following ways:
o Teach df has to deal with statfs(2) failing. If statfs(2)
fails, fall back on the possibly stale stats provided by
the initial call to getfsstat(2).
o Print a warning that the fs stats could possibly be stale
o Modify the man page and document this new behavior
as a bug.
Approved by: bmilekic (mentor)
PR: 68165
back into epoch time. Everytime I'm asked to do this by someone I
have to spend about ten minutes recreating the same command line.
So record it under examples.
rev 1.18, but not documented in the man page) caused a failed chdir.
Otherwise, one can easily overwrite files.
Submitted by: Robert Nagy <robert@openbsd.org>
Obtained from: OpenBSD
(aka "command") will display "<defunct>", as does the output from "comm"
for those processes. Also do better checking for malloc() failures.
Submitted by: Cyrille Lefevre
the [acm]time are the same. I was going to use Scott's patch, but I
couldn't get the style quite right, so I used a patch of my own.
Submitted by: Scott Mitchell <scott+freebsd at fishballoon.org>
MFC after: 3 weeks
threads, put the command name in square brackets instead of parenthesis.
This matches NetBSD, and also seems to be what linux does. The sentence
which is added to the man page is taken straight from NetBSD.
PR: bin/65803
Submitted by: Cyrille Lefevre
Obtained from: NetBSD
kvm_getprocs() will provide useful information if it can, or *it*
will provide a zero value if it can not find something appropriate.
Submitted by: bde
Any [standard output] field need not be meaningful in all
implementations. In such a case a hyphen ('-') should be
output in place of the field value
So have the `-O label' option print out the string " -" if the
process has no label.
Approved by: Silence from rwatson and green (when asked in March...)
and number-of-threads tied to a process. Result can be seen by typing,
e.g.: ps -HO lwp,nlwp
These new options are not documented yet. More options will be coming,
and I will update the man page after I get farther along.
PR: bin/65803 (though adjusted to fit our present source)
Submitted by: Cyrille Lefevre
when copying per-process info before starting to sort the list. This way,
sort-by-CPU or sort-by-memory will only calculate values once-per-process,
instead of twice-per-comparison. Also take advantage of this to simplify
the pscomp() routine.
have no entries to print (either due to an empty directory or an
error). This makes the -l and -s options more consistent, like
Solaris and (Debian) Linux. To make this happen, tweak two
optimizations on the second call to display():
- Don't skip display() altogether, even if list == NULL.
- Don't skip the call to the printfn in display() if we
need to print the total.
PR: 45723
instances of 64-bit arithmetic were costing 775 bytes, and the
inlining offered no benefit. Moreover, ambiguity as to the argument
types led to the introduction of a bug (see rev 1.56).
Also, remove some casts that are now clearly redundant.
Inspired by: 67467
process id, instead of using pid==0. Ie, `ps -p 12,' and `ps -p ,12'
are now errors (instead of being treated like `ps -p 0 -p 12').
Noticed by: Cyrille Lefevre on freebsd-arch
is treated like `ps -t p0', instead of changing it to `ps -T p0'.
Note that `ps t' is still changed to `ps -T', since that is one of
the main reasons for this kludge processing...
Noticed by: Jilles Tjoelker on freebsd-arch
more special situations. This is the code which process `ps blah',
when "blah" does not include a leading '-'.
This change also removes a long-undocumented BACKWARD_COMPATIBILITY
compile-time option, where:
ps -options arg1 arg2
(with no '-' on "arg1" and "arg2") was treated as:
ps -options -N arg1 -M arg2
This also changes `ps' to check for any additional arguments after
processing all the '-'-options, and attempt to use those arguments as
a pid or pidlist. If an extra argument is not a valid pidlist, then
`ps' will print an error and exit. This seems a more generally useful
extension of the kludge-option processing than the -N/-M behavior, and
has fewer confusing side-effects.
Reviewed by: freebsd-arch
(if trying to match only one real-group or one session-id), now that
those options are implemented in src/sys/kern/kern_proc.c (v1.203).
PR: bin/65803 (a very tiny piece of the PR)
Submitted by: Cyrille Lefevre
LC_CTYPE setting) when determining which characters are printable.
This is an often-requested feature.
Use wcwidth() to determine the number of column positions a character
takes up, although there are still a few places left where we assume
1 byte = 1 column position, e.g. line-wrapping when handling the -m option.
The error handling here is somewhat more complicated than usual: we do
our best to show what we can of a filename in the presence of conversion
errors, instead of simply aborting.
- Print a diagnostic if kdumpenv() fails. This can occur due to MAC
restrictions or lack of memory. Catch all kenv(2) failures as well.
- Just of the heck of it, DTRT if the kernel environment size changes
at the wrong time. The old code could fail silently or fail to
null-terminate a buffer if you got exceptionally unlucky.
- Sort and GC the #includes.
