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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
*
* $Id$
*
* Copyright (c) 1987,1988,1991 by the Massachusetts Institute of Technology.
* For copying and distribution information, see the file
* "mit-copyright.h".
*/
#ifndef lint
static const char rcsid_ZLocations_c[] =
"$Id$";
#endif
#include <internal.h>
#include <pwd.h>
static char host[NS_MAXDNAME], *mytty = "space";
static int location_info_set = 0;
Code_t
ZInitLocationInfo(char *hostname,
char *tty)
{
char *ttyp, *p;
struct hostent *hent;
if (hostname) {
strcpy(host, hostname);
} else {
if (gethostname(host, sizeof(host)) < 0)
return (errno);
hent = gethostbyname(host);
if (hent) {
(void) strncpy(host, hent->h_name, sizeof(host));
host[sizeof(host) - 1] = '\0';
}
}
if (tty) {
mytty = strdup(tty);
} else {
ttyp = ttyname(0);
if (ttyp && *ttyp) {
p = strchr(ttyp + 1, '/');
mytty = strdup(p ? p + 1 : ttyp);
} else {
mytty = strdup("unknown");
}
}
if (mytty == NULL)
return errno;
location_info_set = 1;
return (ZERR_NONE);
}
Code_t
ZSetLocation(char *exposure)
{
return (Z_SendLocation(LOGIN_CLASS, exposure, ZGetSender(), ZAUTH,
"$sender logged in to $1 on $3 at $2"));
}
Code_t
ZUnsetLocation(void)
{
return (Z_SendLocation(LOGIN_CLASS, LOGIN_USER_LOGOUT, ZGetSender(),
ZNOAUTH, "$sender logged out of $1 on $3 at $2"));
}
Code_t
ZFlushMyLocations(void)
{
return (Z_SendLocation(LOGIN_CLASS, LOGIN_USER_FLUSH, ZGetSender(),
ZAUTH, ""));
}
Code_t
ZFlushUserLocations(char *target)
{
return (Z_SendLocation(LOGIN_CLASS, LOGIN_USER_FLUSH, target, ZAUTH, ""));
}
char *
ZParseExposureLevel(char *text)
{
if (!strcasecmp(text, EXPOSE_NONE))
return (EXPOSE_NONE);
else if (!strcasecmp(text, EXPOSE_OPSTAFF))
return (EXPOSE_OPSTAFF);
else if (!strcasecmp(text, EXPOSE_REALMVIS))
return (EXPOSE_REALMVIS);
else if (!strcasecmp(text, EXPOSE_REALMANN))
return (EXPOSE_REALMANN);
else if (!strcasecmp(text, EXPOSE_NETVIS))
return (EXPOSE_NETVIS);
else if (!strcasecmp(text, EXPOSE_NETANN))
return (EXPOSE_NETANN);
else
return(NULL);
}
/* lifted from lib/ZSendPkt.c wait_for_hmack, but waits for SERVACK instead */
static int
wait_for_srvack(ZNotice_t *notice, void *uid)
{
return ((notice->z_kind == SERVACK || notice->z_kind == SERVNAK)
&& ZCompareUID(¬ice->z_uid, (ZUnique_Id_t *)uid));
}
Code_t
Z_SendLocation(char *class,
char *opcode,
char *target,
Z_AuthProc auth,
char *format)
{
int retval;
time_t ourtime;
ZNotice_t notice, retnotice;
char *bptr[3];
short wg_port = ZGetWGPort();
if (!location_info_set)
ZInitLocationInfo(NULL, NULL);
memset((char *)¬ice, 0, 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 = target;
notice.z_opcode = opcode;
notice.z_sender = 0;
notice.z_recipient = "";
notice.z_num_other_fields = 0;
notice.z_default_format = format;
bptr[0] = host;
ourtime = time((time_t *)0);
bptr[1] = ctime(&ourtime);
bptr[1][strlen(bptr[1])-1] = '\0';
bptr[2] = mytty;
if ((retval = ZSendList(¬ice, bptr, 3, auth)) != ZERR_NONE)
return (retval);
retval = Z_WaitForNotice (&retnotice, wait_for_srvack, ¬ice.z_uid,
SRV_TIMEOUT);
if (retval != ZERR_NONE)
return retval;
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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