fix WARNS=4 issues (const & type mismatches)

ANSI KNF

'struct timezone' belongs in the dustbin of history.

fix typo in comment

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22284, verified by myself.

backout 1.18 and 1.19

free vis_user

malloc vis_user (why 1.6 branch has the fix already?)

verify strvis() buffer length is enough. make sure string termination before
use. remove extra ntohs() which is not needed. from Charles Blundell

Allocate vis_user on the stack instead of using malloc(). This
way we don't have to worry about malloc() failure. Also closes
a memory leak since vis_user was never free()d. Lack of malloc()
check

Allocate vis_user on the stack instead of using malloc(). This
way we don't have to worry about malloc() failure. Also closes
a memory leak since vis_user was never free()d. Lack of malloc()
checking pointed out by Peter Werner.
from openbsd

show more ...

Lineup comment and remove unnecessary whitespaces.

Use \a instead of embedding raw control-G character.

Formatting nit: add a space.

make sure big_buf is big enough to hold line terminations.
if all the lines have N_CHARS of characters, we will write up
N_CHARS * N_LINES + (3 + 2 * N_LINES) + 1
of bytes.

- clean up some more cruft
- support "talkd -l" for extra (syslog(3)) logging
- fix error in previous announce.c change
- use getopt
- add (missing) -d and -l descriptions to man page

- use S_IWGRP over 020
- KNF
- ensure we don't overflow a buffer (don't think it would anyway).
- favour snprintf over sprintf (and varargs versions)

Need <time.h> for localtime() prototype.

- use ttymsg from libutil
- clean warnings
- PR/3778: Eric Fischer: talkd should find the least idle terminal

Merge in lite-2

Use snprintf(3) when printing into arrays allocated on the stack.
Patch submitted by David Holland <dholland@hcs.HARVARD.EDU>

typeof(timeval.tv_sec) != time_t

stdlib.h for protos

vis(3)ify remote user name. Fixes bug 589. Fix basically as submitted by matthew green

Add RCS identifiers.

initial import of 386bsd-0.1 sources