o fix brokeness for 1>&5 redirection, where `5' was an invalid file
descriptor, but no error message has been generated
o fix brokeness for redirect to/from myself case
command and badly needed in sh(1) for everybody who wants to modify
the system-wide limits from inside /etc/rc.
The options are similar to other system's implemantations of this
command, with the FreeBSD additions for -m (memoryuse) and -p (max
processes) that are not available on other systems.
`mv foo/ ../..' to `mv foo/ ../../foo/', not to `mv foo/ ../../'. The
latter caused a panic. Before the trailing slash changes in the kernel,
the trailing slashes caused the rename() for this mv to fail earlier, so
there was no panic in 2.0.
Fixes part of PR 760.
sh -c [-aCefinuvx] command_string [ command_name [argument ...] ] 1
4.56.3 Options
-c Read commands from the command_string operand. Set the
value of special parameter 0 (see 3.5.2) from the value of
the command_name operand and the positional parameters
($1, $2, etc.) in sequence from the remaining argument
operands.
Pointed out by: Kaleb Keithly (kaleb@x.org)
allow more than two tty characters.
David Greenman pointed out that when a process that had been revoked from
it's controlling tty, the "-" sign was detached from any two-character
names.
/usr/sbin/sendmail -f <> dest
rather than
/usr/sbin/sendmail -f dest.
Submitted by: Michael Butler <imb@scgt.oz.au>
Obtained from: Eric Allman <eric@cs.berkeley.edu>
This gives us more room to breath with tty names, especially with drivers
that support large numbers of ports.. eg: specialix and digiboard.
This does not actually change the current tty names, it just allows room
for reporting more characters if the drivers use them.
When comparing my recent parser change against the ash in 1.1.5.1, i
found that a couple of other problems in the same area has been fixed
there, but not in 2.2. Semicolons and EOF do also delimit words...
The && and || tokens do also terminate a command, not only the
newline.
While i was at it, disabled trace code by default, it served no good
purpose since it required the use of a debugger anyway to be turned
on. Instead, placed a hint in the Makefile on how to turn it on.
This makes the shell ~ 10 % faster and ~ 4 KB smaller. :)
Pointed out by: jan@physik.TU-Berlin.DE (Jan Riedinger)
oo
Turns out, it's pretty important if you use PAX for backup. In the man
page for PAX, there is an error (OK, we could call it a "potentially
catastrophic incompleteness"). It reads:
> The command:
>
> pax -r -v -f filename
>
> gives the verbose table of contents for an archive stored in filename.
Yup, it does do that. With a side effect: it also _replaces_ all the
files that come in from the archive. As is my custom, I did my
backup-validation real soon after the backup was written. Precisely
because I've seen the same sort of thing happen on other systems. So all
that file-restoring didn't do a lot of damage. Probably helped my
fragmentation somewhat (aha, an online defragger?) It did confuse one
hapless user, who lost an email message he _knew_ he hadn't deleted.
Apparently the system restored the file as of just before that critical
message came in.
The correct entry should read:
> The command:
>
> pax -v -f filename
>
> gives the verbose table of contents for an archive stored in filename.
Submitted by: John Beckett <jbeckett@southern.edu> via the BSDI mailing list
comparisions have been made as string comparisions, even in cases
where both operands clearly qualified as integers.
The fix is to make the parser properly analyzing whether an operand is
a valid integer or not.
stream, such as a rsh or vi pipeline.
The error message is:
stty: TIOCGETD: Operation not supported
It's immediately obvious to the knowledgable hacker type, but not
exactly comforting to the user who's not native to unix. It's
especially confusing if there's a stty command in their .cshrc and
it's showing up on rsh output.
(Fixes PR #bin/573)
Submitted by: peter@haywire.dialix.com (Peter Wemm)
cpio/copyout.c:
Don't output a file if the major, minor or totality of its rdev would be
truncated. Print a message about the skipped files to stderr but don't
report the error in the exit status. cpio's abysmal error handling doesn't
allow continuing after an error, and the rdev checks had to be misplaced
to avoid the problem of returning an error code from routines that return
void.
pax/pax.h:
Use the system macros for major(), minor() and makedev().
pax already checks _all_ output conversions for overflow. This has the
undesirable effect that failure to convert relatively useless fields
such as st_dev for regular files causes files not to be output. pax
doesn't report exactly which fields couldn't be converted.
tar/create.c:
Don't output a file if the major or minor its rdev would be truncated.
Print a message about the skipped files to stderr and report the error
in the exit status.
tar/tar.c:
For not immediately fatal errors, exit with status 1, not the error count
(mod 256).
All:
Minor numbers are limited to 21 bits in pax's ustar format and to 18
bits in archives created by gnu tar (gnu tar wastes 3 bits for padding).
pax's and cpio's ustar format is incompatible with gnu tar's ustar
format for other reasons (see cpio/README).
documented and is incompatible with gnu cp. It has very few good effects
(it recovers some disk space) and many bad ones:
- special files are unlinked after certain errors.
- the data may not be recoverable if the source is a special file or fifo.
- unlinking destroys the target attributes as well as the target data.
- unlinking doesn't actually remove the target data if the target is multiply
linked.
There is a bug in sh: the built in command "fc -l" generates
a core dump (*NULL in not_fcnumber).
According to the sh manual page (fc -l [-nr] [first [last]]), fc -l
is a correct sequence (in that case, values are defaulted to -16 and -1)
but fails when first is not given.
and `rtsflow' are the components of `crtscts'. `dtrflow' and `dsrflow' are
new and not yet supported. `dtrflow' may be useful for Cyclades serial
careds, which have h/w support for it and no h/w support for `rtsflow'.
print.c:
Report NTTYDISC in case the line is in this obsolescent state.
/usr/src/bin. Note that some patches are still needed in that directory.
I (Joerg) finished most of Philippe's cleanup. /bin/sh will still
need *allot* of work, however.
Submitted by: charnier@lirmm.fr (Philippe Charnier)
of queuing mails only can be restored by uncommenting a CFLAGS+= line
in the makefile, so sites that _really_ need this (perhaps some huge
mail hubs) can still have it. The majority of FreeBSD boxes is better
served with an immediate delivery (and last time i've been asking on
the list, nobody complained).
stat the pathname "" in order to decide that the pathname "/" is
a directory. This caused `cp kernel /' to fail if the kernel has
the POSIX behaviour of not allowing the pathname "" to be an alias
for ".". It presumably also caused `cp /etc/motd /' to fail in
the unlikely event that "." is not stat'able.
Be more careful about concatenating pathnames: don't check that
the pathname fits until prefixes have been discarded (the check
was too strict). Print the final pathname in error messages.
Terminate the target directory name properly for error messages.
Don't add a slash between components if there is already a slash.
Fix several bugs involving the obsolescent -d and -t options:
-d 0 and -t 0 were ignored
-t -600 was a usage error
-d 'atoi is not suitable for parsing args' and -t duh were not usage errors
Change some error messages to say which call to settimeofday failed.
Restore casts of NULL in function calls.
Finish conversion to using err() instead of perror().
You can get ps easily to core dump, if you are running a "make depend"
on a kernel in one window and a "ps -auxww" in another. The ww will
try to give you the full argument list of the command that can
now be 64Kb large, but ps expected only 4Kb large arg arrays and
doesn't check for overflows.
MKINIT line that doesn't have a comment on it (we have at least two).
This mkinit program was written by someone who obviously doesn't believe
in defensive programming. :-( There's a LOT of work that needs to be done
on this thing. :-( :-( :-(
find it in /bin. This is something of a kludge, I know, but consider
my limited alternatives: I can't make this an execvp() without making
people scream that I introduced a failure point or slowed down pwd,
and I can't make it an optional macro since crunch doesn't let you pass
arbitrary command-line args to the build of one of its crunch-ees.
This is the simplest, if not the nicest looking, solution I could come up
with.
