Commit Graph

19 Commits

Author SHA1 Message Date
mrg 5b6d0e7e39 - add timeouts to displayq(), rmremote(), sendfile() and response(),
and use these timeout in the lpq, lpd and lprm programs.

these stop hung remote printers that accept tcp connections but do
not process jobs from hanging the whole system and letting the sysadmin
have a clue about what is going on with this rogue printer.

- add a -r flag to lpd to allow `of' filters for remote jobs.

i know there are ways around this, but i just don't care.

- add a -f flag to lpf to add missing carriage returns.

useful when printing UNIX files to an, eg, LaserWriter that wants CR's
as well as LF's in raw text.  stair-stepped text is no fun.

- implement child process accounting: we just have a limit on the number
  of children we can have (settable by the sysadmin), and we sleep when
  this number is reached.  this can reduce malicious not-so-malicious
  attacks on the print server by a rogue remote client..

- use setproctitle() where appropriate so the sysadmin has a clue about
  what each of the lpd's here are doing.

this was useful to help diagnose a problem (that the above child process
accounting change reduces the lossages of) where a rogue client was
attempting "lpq" operations on one stuck queue in rapid succession,
causing the lpd server to be extremely slow, due to the large number
of lpd processes running.


i have been running these changes in production for about a year.
1999-12-07 14:54:44 +00:00
simonb 299578ebd5 Spell "privilege" correctly (correct spelling from Jonathan Stone). 1999-08-16 02:59:22 +00:00
garbled d1407362ba More and more .Os cleanups. .Os is defined in the tmac.doc-common file,
so we shouldn't override it with versions in the manpages.  Many more to
come.
1999-03-22 18:43:46 +00:00
mycroft d77575d3c8 Clean up SYNOPSIS formatting. 1999-03-07 11:58:22 +00:00
mrg 32f519716b - use an array MAXHOSTNAMELEN+1 size to hold hostnames
- ensure hostname from gethostname() is nul-terminated in all cases
- minor KNF
- use MAXHOSTNAMELEN over various other values/defines
- be safe will buffers that hold hostnames
1998-07-06 06:56:06 +00:00
lukem 0acf0ef008 only compile common_source/* once (25% faster), remove unused printcap.c 1997-10-10 09:26:35 +00:00
mrg fe7ed7ce37 - WARNS?=1
- be safe with unlinking files (from freebsd)
- remove register
- clean up $NetBSD$'s.
- use inet_ntoa() in one place (from openbsd)
- nul terminate after a bunch of strncpy()'s
- #ifdef __STDC__ rather than #if (from freebsd)
- be safe with a bunch of string operations (from freebsd)
- use warn()/err() over home grown versions (some from freebsd)
- rename warn() to nodaemon() to remove conflict with above
- check errno from failed kill(2) against ESRCH (from freebsd)
- use getopt() rather than home grown versions (from freebsd)
- clean up a bunch of man pages (some from freebsd)
- check for hostname spoof (from freebsd)
- use POSIX wait() interfaces
- use sysconf(_SC_OPEN_MAX) in preference to NOFILE (from freebsd)
- deal with fork() failure
- index/rindex -> strchr/strrchr (some from freebsd)
- add B57600 and B115200 speeds (from freebsd)
- some KNF
- be safe with files passed in over the network (some from freebsd)
- check return value of malloc(), calloc() and strdup()
1997-10-05 15:11:58 +00:00
jtc afdf5dcf23 Changed /var/spool/* to /var/spool/output/*, to be consistant with reality. 1997-07-09 02:04:26 +00:00
gwr 10e180cc49 Back out the .PATH.c changes. The .depend problem (and others)
will be fixed using the new .NOPATH make feature instead.
1997-05-08 21:11:01 +00:00
gwr 012e528f2e Use .PATH.c: ... 1997-05-06 20:44:56 +00:00
mrg 077acf5088 remove unsafe calls to strcpy(), strcat(), and sprintf(). some KNF. 1996-12-09 09:57:40 +00:00
pk f54b84516b Add RCSIDs 1995-11-15 22:48:07 +00:00
hpeyerl 8e41ca8016 -- convert sgtty to termios. From: Scott Bartram <scottb@iis.net>
-- Use seteuid() to only give lpr, lprm, lpq and lpc root when they
   need it from matthew green <mrg@mame.mu.oz.au>
1995-10-03 15:02:17 +00:00
jtc a0e044841b Use consistant style of quotes; PR #1194 1995-07-07 22:26:11 +00:00
cgd 3e603ff386 clean up that import. no rcsids yet. 1994-05-18 01:26:07 +00:00
mycroft e9d867ef50 Add RCS identifiers. 1993-08-01 17:54:45 +00:00
mycroft c3e42d1c64 Add RCS indentifiers. 1993-08-01 07:22:47 +00:00
mycroft b465cf4697 Add RCS identifiers. 1993-07-30 22:11:51 +00:00
cgd 61f282557f initial import of 386bsd-0.1 sources 1993-03-21 09:45:37 +00:00