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Author SHA1 Message Date
Peter Wemm
100ceca222 Today is not my lucky day. Fix missing brace and I got a request 
to use EMLINK instead.
 1998-04-06 19:32:37 +00:00
Peter Wemm
514bc6cb56 Fix VM86 compiles. a #include "opt_vm86.h" was missing, and the my_tr 
variable was needed in the non-SMP case.

Submitted by:  Jonathan Lemon <jlemon@americantv.com>
 1998-04-06 18:59:15 +00:00
Peter Wemm
193afe0189 Use a different errno (ELOOP (as sef mentioned) since the text that goes 
with the error sounds ok for the condition) if O_NOFOLLOW gets a link.
 1998-04-06 18:43:28 +00:00
Peter Wemm
0fdc628b41 Rather than let users get fd's to symlink files, make O_NOFOLLOW cause 
an error if it gets a link (like it does if it gets a socket).  The
implications of letting users try and do file operations on symlinks
themselves were too worrying.
 1998-04-06 18:25:21 +00:00
Peter Wemm
a66ae6f438 Back this out, allowing users to get a fd connected to a symlink is 
just too dangerous.
 1998-04-06 18:18:50 +00:00
Peter Wemm
b587fd008d Don't panic if a VOP_READ() gets through on a short link, Just Do It 
(because we can :-).  This means you can open a link file (or pseudo-file
in the case of short links where the data is stored in the inode rather
than disk blocks) and read the contents.
However, trap any writes from the user as it's difficult to do the right
thing in all cases.  A link may be short and the user may be trying to
extend it beyond the limit and so on.  Although.. being able to re-target
a symlink without deleting it first might have been nice.
This stuff is a bit perverse since symlink() and readlink() calls can
end up actually being implemented as read/write vnode ops.

Reviewed by: phk
 1998-04-06 17:44:40 +00:00
Peter Wemm
7e3426aa1f Implement a new open(2) flag: O_NOFOLLOW. This will instruct open 
to not follow symlinks, but to open a handle on the link itself(!).
As strange as this might sound, it has several useful applications
safe race-free ways of opening files in hostile areas (eg: /tmp, a mode
1777 /var/mail, etc).  It also would allow things like fchown() to work
on the link rather than having to implement a new syscall specifically for
that task.

Reviewed by: phk
 1998-04-06 17:38:43 +00:00
Peter Wemm
eb1c943900 Add a new -F flag which is a superset of -f. It will cause tail to 
stat() the file being followed and do a close/reopen if the file has been
renamed and/or rotated.  This is damn useful for leaving running on files
in /var/log when newsyslog(8) rotates them.
 1998-04-06 16:13:49 +00:00
Peter Wemm
aacdc613e5 curproc is initialized in locore at the same time for both SMP and UP now. 1998-04-06 15:51:22 +00:00
Peter Wemm
fa1ef19485 remove #ifdef declaration of npxproc, use globals.s and the extern always. 1998-04-06 15:50:29 +00:00
Peter Wemm
e8b4f186cd add globals.s for data that is treated differently on SMP. 1998-04-06 15:49:35 +00:00
Peter Wemm
cf34ef61ee Use real types for the SMP pages being allocated rather than arrays of 
ints.  Remove some no longer needed casts.  Initialize the per-cpu
global data area using the structs rather than knowing too much about
layout, alignment, etc.
 1998-04-06 15:48:30 +00:00
Peter Wemm
0c8df3b4c5 clean up #ifdefs, define the variables that have to be per-cpu on SMP 
in globals.s only and use externs always.
 1998-04-06 15:46:17 +00:00
Peter Wemm
741643627f _curpcb is always defined in globals.s instead of here in #ifdefs 1998-04-06 15:44:31 +00:00
Peter Wemm
55caa497cb Bogus casts 1998-04-06 15:43:29 +00:00
Peter Wemm
56a5021bad Defunct, now part of globals.s 1998-04-06 15:42:54 +00:00
Peter Wemm
858118ef47 Rather than filling this file up with SMP .sets, use those from 
globals.s instead.
Initialize curproc in the same place for both UP and SMP.
 1998-04-06 15:42:26 +00:00
Peter Wemm
e3f5516d18 Generate #defines that the asm code can access for the per-cpu data 
structures.
 1998-04-06 15:40:10 +00:00
Peter Wemm
60392aa674 generate .sets for variables used in asm and C that are stored in per-cpu 
space under SMP.
 1998-04-06 15:39:09 +00:00
Peter Wemm
937288c5bb A pair of C structures used for laying out the SMP per-cpu data space. 1998-04-06 15:37:21 +00:00
Peter Wemm
5d0ef2fd65 some missing symbols 1998-04-06 15:33:02 +00:00
Poul-Henning Kamp
98b9590ef3 Use getmicrotime() for if_lastchange, 10msec is plenty precision. 1998-04-06 11:43:12 +00:00
Poul-Henning Kamp
2f5f6b74ca Use random() to find our initial xid. 1998-04-06 11:41:07 +00:00
Poul-Henning Kamp
9f7d4611b3 Use read_random() 1998-04-06 11:40:42 +00:00
Poul-Henning Kamp
33b0bb6af7 Use random() for seq numbers and read_random for CHAP challenge. 1998-04-06 11:40:17 +00:00
Poul-Henning Kamp
7cd5051bec Use random() rather then than homegrown stuff. 1998-04-06 11:39:04 +00:00
Poul-Henning Kamp
8184a0a4d1 Remove stuff related to microtime.s, which is gone. 1998-04-06 11:38:18 +00:00
Poul-Henning Kamp
9729e74321 Use getmicrotime insted of microtime, we only use the second part. 1998-04-06 11:37:17 +00:00
Poul-Henning Kamp
2eeb0e2ea0 Make read_random() take a (void *) argument instead of (char *) 1998-04-06 09:30:42 +00:00
Poul-Henning Kamp
4cf41af3d4 Make a kernel version of the timer* functions called timerval* to be 
more consistent.

OK'ed by:	bde
 1998-04-06 08:26:08 +00:00
Amancio Hasty
e248ae96af take out opt_bktr.h from brooktree848.c 1998-04-06 07:57:55 +00:00
Poul-Henning Kamp
8e5db87cdb Remove the last traces of TUBA. 
Inspired by:	PR kern/3317
 1998-04-06 06:52:47 +00:00
Philippe Charnier
52e8a120a3 Prevent rdist from dumping core: do not free() pointer before using it. 
Add rcsid. Document -D flag (debug mode). Remove unused includes.
PR:bin/3158 (part 1)
 1998-04-06 06:18:32 +00:00
Peter Wemm
a7017d7f9e Really make this compile.. 
Pointed out by: bde
 1998-04-06 05:11:42 +00:00
KATO Takenori
237d5c328a Sync with sys/i386/isa/clock.c revision 1.119. 1998-04-06 03:38:18 +00:00
KATO Takenori
c8e4433596 Sync with sys/i386/isa/syscons.c revision 1.258. 1998-04-06 03:37:55 +00:00
Amancio Hasty
f7c015e72e Reviewed by: Amancio 
Submitted by:	Frank Nobis  <fn@Radio-do.de>

Mods to view german cable tv and minor fix to correctly identify bt849.
 1998-04-05 20:57:46 +00:00
Poul-Henning Kamp
9018b53439 Commit a much more functional version of this driver. 1998-04-05 19:26:08 +00:00
Andrey A. Chernov
aaf0bb1961 Print explanation diagnostics when mount is impossible 
Submitted by: Dmitrij Tejblum <dima@tejblum.dnttm.rssi.ru>
 1998-04-05 13:10:11 +00:00
Poul-Henning Kamp
5704ba6a06 More fixes for the iterative case of nanosleep1 from bruce. 
I hate the 2-arg time{spec|val}{add|sub} functions!
 1998-04-05 12:10:41 +00:00
Poul-Henning Kamp
bfe6c9fabf Make the dummy timecounter run at 1 MHz rather than 100kHz (noticed by bde) 
fix the itimer(REAL) handling.
 1998-04-05 11:49:36 +00:00
Peter Wemm
d59fbbf6c8 If there is no error code, don't copyout the remaining time. (As 
documented in the man page and the standards).  (and besides, nanosleep1
isn't setting it in this case at present anyway, so we'd be copying junk).
 1998-04-05 11:17:19 +00:00
Poul-Henning Kamp
338418263d Fix nanosleep1 based on Bruces suggestion. 1998-04-05 10:28:01 +00:00
Andrey A. Chernov
80a39463c9 Remove unused atv.tv_usec = 0; from select/poll code 1998-04-05 10:03:52 +00:00
Peter Wemm
2257b488b9 tsleep() returns EWOULDBLOCK if the timeout expired. Don't return this 
to usermode, otherwise sleep(3) fails, cron doesn't work, etc etc etc.
 1998-04-05 07:31:44 +00:00
Peter Wemm
48e88c192e Maybe fix netkey. I am not sure how to test this.. 1998-04-05 05:19:00 +00:00
Peter Wemm
b90dcc0c5d Fix previous commit. Don't people read compiler messages or something?? 1998-04-05 02:59:10 +00:00
Tor Egge
c547ef5cd4 Remove some unneeded statements that enabled interrupts. 1998-04-05 01:04:48 +00:00
Poul-Henning Kamp
cc6447a365 Use microruntime() rather than doing it by hand. 1998-04-04 18:56:54 +00:00
Poul-Henning Kamp
91ad39c6b3 Handle double fraction overflow in nano & microtime functions (spotted by Bruce) 
Use tvtohz() a place where it fits.
 1998-04-04 18:46:13 +00:00