1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
|
/* This file is part of the Project Athena Zephyr Notification System.
* It contains source for the ZRetrieveSubscriptions and
* ZRetrieveDefaultSubscriptions functions.
*
* Created by: Robert French
*
* Copyright (c) 1987,1988,1991 by the Massachusetts Institute of Technology.
* For copying and distribution information, see the file
* "mit-copyright.h".
*/
#include "internal.h"
static Code_t Z_RetSubs(ZNotice_t *notice, int *nsubs, Z_AuthProc auth_routine);
/* Need STDC definition when possible for unsigned short argument. */
#ifdef __STDC__
Code_t ZRetrieveSubscriptions(unsigned short port, int *nsubs)
#else
Code_t ZRetrieveSubscriptions(port,nsubs)
unsigned short port;
int *nsubs;
#endif
{
int retval;
ZNotice_t notice;
char asciiport[50];
if (!port) /* use default port */
port = __Zephyr_port;
retval = ZMakeAscii16(asciiport, sizeof(asciiport), ntohs(port));
if (retval != ZERR_NONE)
return (retval);
(void) memset((char *)¬ice, 0, sizeof(notice));
notice.z_message = asciiport;
notice.z_message_len = strlen(asciiport)+1;
notice.z_opcode = CLIENT_GIMMESUBS;
return(Z_RetSubs(¬ice, nsubs, ZAUTH));
}
#if 0
Code_t ZRetrieveDefaultSubscriptions(nsubs)
int *nsubs;
{
ZNotice_t notice;
(void) memset((char *)¬ice, 0, sizeof(notice));
notice.z_message = (char *) 0;
notice.z_message_len = 0;
notice.z_opcode = CLIENT_GIMMEDEFS;
return(Z_RetSubs(¬ice, nsubs, ZNOAUTH));
}
#endif
static Code_t Z_RetSubs(notice, nsubs, auth_routine)
register ZNotice_t *notice;
int *nsubs;
Z_AuthProc auth_routine;
{
register int i;
int retval,nrecv,gimmeack;
ZNotice_t retnotice;
char *ptr,*end,*ptr2;
retval = ZFlushSubscriptions();
if (retval != ZERR_NONE && retval != ZERR_NOSUBSCRIPTIONS)
return (retval);
if (ZGetFD() < 0)
if ((retval = ZOpenPort((unsigned short *)0)) != ZERR_NONE)
return (retval);
notice->z_kind = ACKED;
notice->z_port = __Zephyr_port;
notice->z_class = ZEPHYR_CTL_CLASS;
notice->z_class_inst = ZEPHYR_CTL_CLIENT;
notice->z_sender = 0;
notice->z_recipient = "";
notice->z_default_format = "";
if ((retval = ZSendNotice(notice,auth_routine)) != ZERR_NONE)
return (retval);
nrecv = 0;
gimmeack = 0;
__subscriptions_list = (ZSubscription_t *) 0;
while (!nrecv || !gimmeack) {
retval = Z_WaitForNotice (&retnotice, ZCompareMultiUIDPred,
¬ice->z_multiuid, SRV_TIMEOUT);
if (retval == ZERR_NONOTICE)
return ETIMEDOUT;
else if (retval != ZERR_NONE)
return retval;
if (retnotice.z_kind == SERVNAK) {
ZFreeNotice(&retnotice);
return (ZERR_SERVNAK);
}
/* non-matching protocol version numbers means the
server is probably an older version--must punt */
if (strcmp(notice->z_version,retnotice.z_version)) {
ZFreeNotice(&retnotice);
return(ZERR_VERS);
}
if (retnotice.z_kind == SERVACK &&
!strcmp(retnotice.z_opcode,notice->z_opcode)) {
ZFreeNotice(&retnotice);
gimmeack = 1;
continue;
}
if (retnotice.z_kind != ACKED) {
ZFreeNotice(&retnotice);
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 = __subscriptions_num / 3;
__subscriptions_list = (ZSubscription_t *)
malloc((unsigned)(__subscriptions_num*
sizeof(ZSubscription_t)));
if (__subscriptions_num && !__subscriptions_list) {
ZFreeNotice(&retnotice);
return (ENOMEM);
}
for (ptr=retnotice.z_message,i = 0; i< __subscriptions_num; i++) {
__subscriptions_list[i].zsub_class = (char *)
malloc((unsigned)strlen(ptr)+1);
if (!__subscriptions_list[i].zsub_class) {
ZFreeNotice(&retnotice);
return (ENOMEM);
}
(void) strcpy(__subscriptions_list[i].zsub_class,ptr);
ptr += strlen(ptr)+1;
__subscriptions_list[i].zsub_classinst = (char *)
malloc((unsigned)strlen(ptr)+1);
if (!__subscriptions_list[i].zsub_classinst) {
ZFreeNotice(&retnotice);
return (ENOMEM);
}
(void) strcpy(__subscriptions_list[i].zsub_classinst,ptr);
ptr += strlen(ptr)+1;
ptr2 = ptr;
if (!*ptr2)
ptr2 = "*";
__subscriptions_list[i].zsub_recipient = (char *)
malloc((unsigned)strlen(ptr2)+1);
if (!__subscriptions_list[i].zsub_recipient) {
ZFreeNotice(&retnotice);
return (ENOMEM);
}
(void) strcpy(__subscriptions_list[i].zsub_recipient,ptr2);
ptr += strlen(ptr)+1;
}
ZFreeNotice(&retnotice);
}
__subscriptions_next = 0;
*nsubs = __subscriptions_num;
return (ZERR_NONE);
}
|
