* Copyright (c) 1983 Regents of the University of California.
* %sccs.include.redist.c%
"@(#) Copyright (c) 1983 Regents of the University of California.\n\
static char sccsid
[] = "@(#)talkd.c 5.9 (Berkeley) %G%";
* The top level of the daemon, the format is heavily borrowed
* from rwhod.c. Basically: find out who and where you are;
* disconnect all descriptors and ttys, and then endless
* loop on waiting for and processing requests
#include <protocols/talkd.h>
register CTL_MSG
*mp
= &request
;
fprintf(stderr
, "%s: getuid: not super-user\n", argv
[0]);
openlog("talkd", LOG_PID
, LOG_DAEMON
);
if (gethostname(hostname
, sizeof (hostname
) - 1) < 0) {
syslog(LOG_ERR
, "gethostname: %m");
if (chdir(_PATH_DEV
) < 0) {
syslog(LOG_ERR
, "chdir: %s: %m", _PATH_DEV
);
if (argc
> 1 && strcmp(argv
[1], "-d") == 0)
signal(SIGALRM
, timeout
);
cc
= recv(0, (char *)mp
, sizeof (*mp
), 0);
if (cc
!= sizeof (*mp
)) {
if (cc
< 0 && errno
!= EINTR
)
syslog(LOG_WARNING
, "recv: %m");
process_request(mp
, &response
);
/* can block here, is this what I want? */
cc
= sendto(sockt
, (char *)&response
,
sizeof (response
), 0, (struct sockaddr
*)&mp
->ctl_addr
,
if (cc
!= sizeof (response
))
syslog(LOG_WARNING
, "sendto: %m");
if (time(0) - lastmsgtime
>= MAXIDLE
)