specific sysctls and ptrace interfaces.
This change switches a bit gcore POLA that is summarized here:
- now gcore can recognize threads within the process and handle dumps
on thread-scope
- the process to be analyzed will be stopped during its gcore run
- gcore may not work with processes which are actively being analyzed
by gdb or truss
- the ptrace interface may cause syscalls to return EINTR, thus
interferring with signals handling within the process
Side note: <janitor task> the interface can be further lifted in order to
get rid of the very last procfs interfaces remnants and made more
suitable for copying with sysctl/ptrace interface </janitor task>.
Obtained from: Sandvine Incorporated
Reviewed by: emaste, rwatson
Sponsored by: Sandvine Incorporated
MFC: 1 month
addresses, again. However, change a hostname into an IP address, only
when a host has just one A/AAAA RR.
Requested by: candy__at__kgc.co.jp
MFC after: 2 weeks
BZ_STREAM_END triggered re-init. Do it by introducing a new flag
to represent the 'cold' case after bzip2 state is reinitialized.
This fixes regression reported on -current@ as well as another one
I found during twiddling with gzip.
Reported by: swell.k gmail.com
MFC after: 1 week
ktrsyscall(). print_number() does decrement the number of arguments,
leading to infinite loops for negative values.
Reported by: Patrick Lamaiziere <patpr at davenulle dot org>,
Jonathan Pascal <jkpyvxmzsa at mailinator dot com>
Submitted by: jh
PR: bin/120055, kern/119564
MFC: 1 week
input to be in non-buffering mode so that input lines are logged
as they occur rather than being saved up until a buffer's worth of
input has been logged.
bspatch thus does not verify file hashes, and that consequently it
is recommended that users store hashes separately and verify files
before and after running bspatch.
Requested by: BugMagnet
MFC after: 1 week
the error and assume that the file doesn't exist. Touch could return
success with -c option even if the file existed and time was not set.
- If the first utimes_f() call fails with -A option, give up and don't
continue trying to set times to current time. [1]
- Set exit status to 1 when setting of timestamps fails for a directory
or symbolic link even though lstat()/stat() would succeed.
- Don't print bogus error message when rw() succeeds.
PR: bin/112213
Submitted by: jilles [1]
Reviewed by: jilles
Approved by: trasz (mentor)
otherwise sign extension leads to unlikely values when in the negative
range of the signed short structure fields that hold the statistics.
The type used to hold routing statistics is arguably also incorrect.
MFC after: 3 days
- Exit if getch() returns with an error other than EINTR. Otherwise
systat(1) may get stuck in an infinite loop if it doesn't receive
SIGHUP when terminal closes. [1]
- Remove attempt to clear stdio error indicators. getch() doesn't use
stdio, making it useless. [2]
- Remove unneeded masking of getch() return value. [2]
PR: bin/107171
Reviewed by: bde
Approved by: trasz (mentor)
Obtained from: OpenBSD [1]
Suggested by: bde [2]
MFC after: 1 month
It is a bit unfortunate that the example to delete broken symlinks now uses
rm(1), but allowing this with -delete would require fixing fts(3) to not
imply FTS_NOCHDIR if FTS_LOGICAL is given (or hacks in the -delete option).
PR: bin/90687
MFC after: 2 weeks
"The escape sequence '\n' shall match a <newline> embedded in
the pattern space."
It is unclear whether this also applies to a \n embedded in a
character class. Disable the existing handling of \n in a character
class following Mac OS X, GNU sed version 4.1.5 with --posix, and
SunOS 5.10 /usr/bin/sed.
Pointed by: Marius Strobl
Obtained from: Mac OS X
of the y (translate) command.
"If a backslash character is immediately followed by a backslash
character in string1 or string2, the two backslash characters shall
be counted as a single literal backslash character"
Pointed by: Marius Strobl
Obtained from: Mac OS X
feature when you have a seemingly stuck socket and want to figure
out why it has not been closed yet.
No plans to MFC this, as it changes the netstat sysctl ABI.
Reviewed by: andre, rwatson, Eric Van Gyzen
New counters now exist for:
requests sent
replies sent
requests received
replies received
packets received
total packets dropped due to no ARP entry
entrys timed out
Duplicate IPs seen
The new statistics are seen in the netstat command
when it is given the -s command line switch.
MFC after: 2 weeks
In collaboration with: bz
prior to r195693, since historical behaviour of mmap(2) was to silently
ignore length-zero mmap requests; but mmap now returns EINVAL, which caused
look(1) to emit an error message and fail.
Among other things, this makes `freebsd-update fetch` on a newly installed
8.0-BETA3 system print bogus warning messages.
MFC after: 3 days
This affects only fstat on zfs and devfs, only on 64-bit systems
and only when fsid is greater than 2^31 - 1.
When fstat examines a file via stat(2) it takes uint32_t st_dev
and assigns to (signed) (64-bit) long fsid, this results in
a positive value.
When fstat examines opened files it takes int32_t f_fsid.val[0]
and assigns to (signed) (64-bit) long fsid, this results in
a negative value.
So, while initially st_dev and f_fsid.val[0] have the same bit
values they get promoted to different 64-bit values because
of the signed-vs-unsigned difference.
A fix is to use "more natural" positive numbers by introducing
intermediate unsigned cast for f_fsid.val[0].
Reviewed by: jhb, lulf
Approved by: re (kib)
MFC after: 1 week (to stable/7)
- Limit suffix to be no more than 30 bytes long. This matches GNU
behavior.
- Correct usage of memcpy().
Note that this commit only corrects the stack underflow issue, we
still need some other fixes to cover other edges. [1]
Reported by: Ron Jude <ronj wytheville org>
Discussed with: Matthew Green (original NetBSD gzip author),
Eygene Ryabinkin <rea-fbsd codelabs ru> [1]
Approved by: re (kib)
Major changes from v429:
* Don't pass "-" to non-pipe LESSOPEN unless it starts with "-".
* Allow a fraction as the argument to the -# (--shift) option.
* Fix highlight bug when underlined/overstruck text matches at end of line.
* Fix non-regex searches with ctrl-R.
Approved by: re (kensmith, kib)
ability to retrieve the group list of each process.
Modify procstat's -s option to query this mib when the kinfo_proc
reports that the field has been truncated. If the mib does not exist,
fall back to the truncated list.
Reviewed by: rwatson
Approved by: re (kib)
MFC after: 2 weeks
a device pager (OBJT_DEVICE) object in that it uses fictitious pages to
provide aliases to other memory addresses. The primary difference is that
it uses an sglist(9) to determine the physical addresses for a given offset
into the object instead of invoking the d_mmap() method in a device driver.
Reviewed by: alc
Approved by: re (kensmith)
MFC after: 2 weeks
when using mmap() before invoking mmap(). This avoids a confusing error
message when locate is invoked against a zero-size database after the
recent change to make mmap() fail requests to map 0 bytes.
Submitted by: Jaakko Heinonen jh of saunalahti dot fi
Approved by: re (kensmith)
MFC after: 1 week
were pointed out by Brooks Davis and Alexey Dokuchaev:
* It now tries to lookup arguments as names first, then tries
to parse them as numbers. In particular, this makes the
behavior consistent with POSIX conventions when usernames
consist entirely of digits.
* It now uses strtoul() for the numeric parsing.
Finally, I've included an update to the test harness
to exercise the new numeric cases for -R.
Approved by: re (kib)
user or group Ids as well as user or group names.
In particular, this fixes freesbie2, which uses
-R 0:0 to copy a bunch of files so that the result
will be owned by root.
Also fixes a related bug that mixed-up the uid
and gid specified by -R when in passthrough mode.
Thanks to Dominique Goncalves for reporting this
regression.
Approved by: re (kib)
insisting on privileged port access.
Include /var/yp/Makefile.local if it exists and suggest using
it to override /var/yp/Makefile behaviour.
Approved by: re (kib)
MFC after: 3 weeks
- gzip -n does not store timestamp; [1]
- Reduce diff against NetBSD by moving some casts in our local
versions.
PR: bin/134955
Obtained from: NetBSD
MFC after: 1 month
- The uid/cuid members of struct ipc_perm are now uid_t instead of unsigned
short.
- The gid/cgid members of struct ipc_perm are now gid_t instead of unsigned
short.
- The mode member of struct ipc_perm is now mode_t instead of unsigned short
(this is merely a style bug).
- The rather dubious padding fields for ABI compat with SV/I386 have been
removed from struct msqid_ds and struct semid_ds.
- The shm_segsz member of struct shmid_ds is now a size_t instead of an
int. This removes the need for the shm_bsegsz member in struct
shmid_kernel and should allow for complete support of SYSV SHM regions
>= 2GB.
- The shm_nattch member of struct shmid_ds is now an int instead of a
short.
- The shm_internal member of struct shmid_ds is now gone. The internal
VM object pointer for SHM regions has been moved into struct
shmid_kernel.
- The existing __semctl(), msgctl(), and shmctl() system call entries are
now marked COMPAT7 and new versions of those system calls which support
the new ABI are now present.
- The new system calls are assigned to the FBSD-1.1 version in libc. The
FBSD-1.0 symbols in libc now refer to the old COMPAT7 system calls.
- A simplistic framework for tagging system calls with compatibility
symbol versions has been added to libc. Version tags are added to
system calls by adding an appropriate __sym_compat() entry to
src/lib/libc/incldue/compat.h. [1]
PR: kern/16195 kern/113218 bin/129855
Reviewed by: arch@, rwatson
Discussed with: kan, kib [1]
- update for getrlimit(2) manpage;
- support for setting RLIMIT_SWAP in login class;
- addition to the limits(1) and sh and csh limit-setting builtins;
- tuning(7) documentation on the sysctls controlling overcommit.
In collaboration with: pho
Reviewed by: alc
Approved by: re (kensmith)
in some commercial Unix systems, which utilizes Huffman minimum redundancy
code tree to compress files. This implementation supports the "new" pack
format only, just like GNU gzip did.
Thanks for oliver@'s archive set which I can test against, and Mingyan Guo
for providing helpful review of my code.
PR: bin/109567
MFC after: 1 month
Add necessary changes to the kernel for this (basically introduce a
bpf_zero_counters() function). As well, update the man page.
MFC after: 1 month
Discussed with: rwatson
- Reduce scope where return value can be referenced.
- Add a dummy access to timestamp to silence warning.
Submitted by: Mingyan Guo <guomingyan gmail com>
system callers of getgroups(), getgrouplist(), and setgroups() to
allocate buffers dynamically. Specifically, allocate a buffer of size
sysconf(_SC_NGROUPS_MAX)+1 (+2 in a few cases to allow for overflow).
This (or similar gymnastics) is required for the code to actually follow
the POSIX.1-2008 specification where {NGROUPS_MAX} may differ at runtime
and where getgroups may return {NGROUPS_MAX}+1 results on systems like
FreeBSD which include the primary group.
In id(1), don't pointlessly add the primary group to the list of all
groups, it is always the first result from getgroups(). In principle
the old code was more portable, but this was only done in one of the two
places where getgroups() was called to the overall effect was pointless.
Document the actual POSIX requirements in the getgroups(2) and
setgroups(2) manpages. We do not yet support a dynamic NGROUPS, but we
may in the future.
MFC after: 2 weeks
While hacking on TTY code, I often miss a small utility to revoke my own
(pseudo-)terminals. This small utility is just a small wrapper around
the revoke(2) call, so you can destroy your very own login sessions.
Approved by: re
The chpass Makefile tried to set the fschg flag on the binaries, even if
NO_FSCHG was passed to the installworld. This meant that if I installed
FreeBSD into a Jail, I couldn't installworld from within the Jail
anymore.
Now that it listens to NO_FSCHG, we can just make it bail out when it
fails, just like PRECIOUSPROG does.
trying to open files rather than giving up when it encounters an
error. ENOENT errors are not reported.
As a result, files that are moved away then recreated are not at
risk of being 'lost' to tail. Files that are recreated and
temporarily have unreadable permissions will be shown when they
are fixed.
This behaviour is consistent with the GNU version of tail but
without the verbiage that goes with the GNU version.
This change also fixes error messages accompanying -f and -F.
They no longer report problems with (null)!
MFC after: 3 weeks
Some time ago Tom Rhodes sent me an email that he was willing to perform
various cleanups to the window(1) source code. After some discussion, we
both decided the best thing to do, was to move window(1) to the ports
tree. The application isn't used a lot nowadays, mainly because it has
been superseeded by screen, tmux, etc.
A couple of hours ago Tom committed window(1) to ports (misc/window), so
I'm removing it from the tree. I don't think people will really miss it,
but I'm describing the change in UPDATING anyway.
Discussed with: trhodes, pav, kib
Approved by: re
an accessor function to get the correct rnh pointer back.
Update netstat to get the correct pointer using kvm_read()
as well.
This not only fixes the ABI problem depending on the kernel
option but also permits the tunable to overwrite the kernel
option at boot time up to MAXFIBS, enlarging the number of
FIBs without having to recompile. So people could just use
GENERIC now.
Reviewed by: julian, rwatson, zec
X-MFC: not possible
Formerly, this tried to clear the flags on the symlink's target
instead of the symlink itself.
As before, this only happens for root or for the unlink(1) variant of rm.
PR: bin/111226 (part of)
Submitted by: Martin Kammerhofer
Approved by: ed (mentor)
MFC after: 3 weeks
This version is now licensed under a 2-clause BSD license, instead of
the Artistic license. I've reverted a lot of local modifications we made
to ee, because they have been integrated upstream as well.
Only local modifications include:
- $FreeBSD$ ID.
- Pathname to init.ee.
- catopen() call, to honor LC_MESSAGES instead of LANG.
To keep SVN happy, I'm putting an application/octet-stream mime type on
the KOI8 translations.
Reviewed by: current@
and jail_get(2). Jail(8) can now create jails using a "name=value"
format instead of just specifying a limited set of fixed parameters; it
can also modify parameters of existing jails. Jls(8) can display all
parameters of jails, or a specified set of parameters. The available
parameters are gathered from the kernel, and not hard-coded into these
programs.
Small patches on killall(1) and jexec(8) to support jail names with
jail_get(2).
Approved by: bz (mentor)
The source file, manual page and English translation are now directly
obtained from the contrib/ directory. This makes it a lot easier to
merge a newer version of ee(1) into the tree.
Thanks to: des and jhb
