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/* This file is part of the Project Athena Zephyr Notification System.
* It contains source for the ZSetLocation, ZUnsetLocation, and
* ZFlushMyLocations functions.
*
* Created by: Robert French
*
* $Source$
* $Author$
*
* Copyright (c) 1987,1988 by the Massachusetts Institute of Technology.
* For copying and distribution information, see the file
* "mit-copyright.h".
*/
/* $Header$ */
#ifndef lint
static char rcsid_ZLocations_c[] = "$Header$";
#endif lint
#include <zephyr/mit-copyright.h>
#include <zephyr/zephyr_internal.h>
#include <pwd.h>
#include <sys/file.h>
#include <sys/param.h>
#include <netdb.h>
extern char *getenv();
extern int errno;
Code_t ZSetLocation(exposure)
char *exposure;
{
return (Z_SendLocation(LOGIN_CLASS, exposure, ZAUTH,
"$sender logged in to $1 on $3 at $2"));
}
Code_t ZUnsetLocation()
{
return (Z_SendLocation(LOGIN_CLASS, LOGIN_USER_LOGOUT, ZNOAUTH,
"$sender logged out of $1 on $3 at $2"));
}
Code_t ZFlushMyLocations()
{
return (Z_SendLocation(LOGIN_CLASS, LOGIN_USER_FLUSH, ZAUTH, ""));
}
static char host[MAXHOSTNAMELEN], mytty[MAXPATHLEN];
static int reenter = 0;
Z_SendLocation(class, opcode, auth, format)
char *class;
char *opcode;
int (*auth)();
char *format;
{
char *ttyname(), *ctime();
int retval;
long ourtime;
ZNotice_t notice, retnotice;
char *bptr[3];
#ifdef X11
char *display;
#endif /* X11 */
char *ttyp;
struct hostent *hent;
short wg_port = ZGetWGPort();
int gotone = 0;
register int i;
struct timeval tv;
(void) bzero((char *)¬ice, sizeof(notice));
notice.z_kind = ACKED;
notice.z_port = (u_short) ((wg_port == -1) ? 0 : wg_port);
notice.z_class = class;
notice.z_class_inst = ZGetSender();
notice.z_opcode = opcode;
notice.z_sender = 0;
notice.z_recipient = "";
notice.z_num_other_fields = 0;
notice.z_default_format = format;
/*
keep track of what we said before so that we can be consistent
when changing location information.
This is done mainly for the sake of the WindowGram client.
*/
if (!reenter) {
if (gethostname(host, MAXHOSTNAMELEN) < 0)
return (errno);
hent = gethostbyname(host);
if (!hent)
(void) strcpy(host, "unknown");
else
(void) strcpy(host, hent->h_name);
bptr[0] = host;
#ifdef X11
if ((display = getenv("DISPLAY")) && *display) {
(void) strcpy(mytty, display);
bptr[2] = mytty;
} else {
#endif /* X11 */
ttyp = ttyname(0);
bptr[2] = rindex(ttyp, '/');
if (bptr[2])
bptr[2]++;
else
bptr[2] = ttyp;
(void) strcpy(mytty, bptr[2]);
#ifdef X11
}
#endif /* X11 */
reenter = 1;
} else {
bptr[0] = host;
bptr[2] = mytty;
}
ourtime = time((long *)0);
bptr[1] = ctime(&ourtime);
bptr[1][strlen(bptr[1])-1] = '\0';
if ((retval = ZSendList(¬ice, bptr, 3, auth)) != ZERR_NONE)
return (retval);
for (i=0;i<HM_TIMEOUT*2;i++) {
tv.tv_sec = 0;
tv.tv_usec = 500000;
if (select(0, (fd_set *) 0, (fd_set *) 0, (fd_set *) 0, &tv) < 0)
return (errno);
retval = ZCheckIfNotice(&retnotice, (struct sockaddr_in *)0,
ZCompareUIDPred, (char *)¬ice.z_uid);
if (retval == ZERR_NONE) {
gotone = 1;
break;
}
if (retval != ZERR_NONOTICE)
return (retval);
}
if (!gotone)
return(ETIMEDOUT);
if (retnotice.z_kind == SERVNAK) {
if (!retnotice.z_message_len) {
ZFreeNotice(&retnotice);
return (ZERR_SERVNAK);
}
if (!strcmp(retnotice.z_message, ZSRVACK_NOTSENT)) {
ZFreeNotice(&retnotice);
return (ZERR_AUTHFAIL);
}
if (!strcmp(retnotice.z_message, ZSRVACK_FAIL)) {
ZFreeNotice(&retnotice);
return (ZERR_LOGINFAIL);
}
ZFreeNotice(&retnotice);
return (ZERR_SERVNAK);
}
if (retnotice.z_kind != SERVACK) {
ZFreeNotice(&retnotice);
return (ZERR_INTERNAL);
}
if (!retnotice.z_message_len) {
ZFreeNotice(&retnotice);
return (ZERR_INTERNAL);
}
if (strcmp(retnotice.z_message, ZSRVACK_SENT) &&
strcmp(retnotice.z_message, ZSRVACK_NOTSENT)) {
ZFreeNotice(&retnotice);
return (ZERR_INTERNAL);
}
ZFreeNotice(&retnotice);
return (ZERR_NONE);
}
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