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/* This file is part of the Project Athena Zephyr Notification System.
* It contains source for the ZRetrieveSubscriptions function.
*
* Created by: Robert French
*
* $Source$
* $Author$
*
* Copyright (c) 1987 by the Massachusetts Institute of Technology.
* For copying and distribution information, see the file
* "mit-copyright.h".
*/
/* $Header$ */
#ifndef lint
static char rcsid_ZRetrieveSubscriptions_c[] = "$Header$";
#endif lint
#include <zephyr/mit-copyright.h>
#include <zephyr/zephyr_internal.h>
Code_t ZRetrieveSubscriptions(port,nsubs)
u_short port;
int *nsubs;
{
int subscription_pred();
int i,retval,nrecv,gimmeack;
ZNotice_t notice,retnotice;
ZPacket_t buffer;
char *ptr,*end,*ptr2;
char subs_recvd[MAXSUBPACKETS],asciiport[50];
retval = ZFlushSubscriptions();
if (retval != ZERR_NONE && retval != ZERR_NOSUBSCRIPTIONS)
return (retval);
notice.z_kind = ACKED;
notice.z_port = 0;
notice.z_class = ZEPHYR_CTL_CLASS;
notice.z_class_inst = ZEPHYR_CTL_CLIENT;
notice.z_opcode = CLIENT_GIMMESUBS;
notice.z_sender = 0;
notice.z_recipient = "";
notice.z_default_format = 0;
notice.z_message = asciiport;
if ((retval = ZMakeAscii(asciiport,sizeof(asciiport),
(unsigned char *)&port,
sizeof(u_short))) != ZERR_NONE)
return (retval);
notice.z_message_len = strlen(asciiport)+1;
if ((retval = ZSendNotice(¬ice,ZAUTH)) != ZERR_NONE)
return (retval);
nrecv = 0;
gimmeack = 0;
__subscriptions_list = (ZSubscription_t *) 0;
while (!nrecv || !gimmeack) {
if ((retval = ZIfNotice(&retnotice,NULL,
ZCompareUIDPred,
(char *)¬ice.z_uid)) != ZERR_NONE)
return (retval);
if (retnotice.z_kind == SERVNAK) {
ZFreeNotice(&retnotice);
return (ZERR_SERVNAK);
}
if (retnotice.z_kind == SERVACK &&
!strcmp(retnotice.z_opcode,CLIENT_GIMMESUBS)) {
gimmeack = 1;
continue;
}
if (retnotice.z_kind != ACKED)
return (ZERR_INTERNAL);
nrecv++;
end = retnotice.z_message+retnotice.z_message_len;
__subscriptions_num = 0;
for (ptr=retnotice.z_message;ptr<end;ptr++)
if (!*ptr)
__subscriptions_num++;
__subscriptions_num /= 3;
__subscriptions_list = (ZSubscription_t *)
malloc((unsigned)(__subscriptions_num*
sizeof(ZSubscription_t)));
if (!__subscriptions_list)
return (ENOMEM);
for (ptr=retnotice.z_message,i = 0; i< __subscriptions_num; i++) {
__subscriptions_list[i].class = (char *)
malloc((unsigned)strlen(ptr)+1);
if (!__subscriptions_list[i].class)
return (ENOMEM);
(void) strcpy(__subscriptions_list[i].class,ptr);
ptr += strlen(ptr)+1;
__subscriptions_list[i].classinst = (char *)
malloc((unsigned)strlen(ptr)+1);
if (!__subscriptions_list[i].classinst)
return (ENOMEM);
(void) strcpy(__subscriptions_list[i].classinst,ptr);
ptr += strlen(ptr)+1;
ptr2 = ptr;
if (!*ptr2)
ptr2 = "*";
__subscriptions_list[i].recipient = (char *)
malloc((unsigned)strlen(ptr2)+1);
if (!__subscriptions_list[i].recipient)
return (ENOMEM);
(void) strcpy(__subscriptions_list[i].recipient,ptr2);
ptr += strlen(ptr)+1;
}
ZFreeNotice(&retnotice);
}
__subscriptions_next = 0;
*nsubs = __subscriptions_num;
return (ZERR_NONE);
}
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