6 * This file is part of adns, which is Copyright (C) 1997-1999 Ian Jackson
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2, or (at your option)
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software Foundation,
20 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
25 void adns_checkconsistency(adns_state ads
) { adns__consistency(ads
,cc_user
); }
27 #define DLIST_CHECK(list, nodevar, part, body) \
29 assert(! (list).head->part back); \
30 for ((nodevar)= (list).head; (nodevar); (nodevar)= (nodevar)->part next) { \
31 assert((nodevar)->part next \
32 ? (nodevar) == (nodevar)->part next->part back \
33 : (nodevar) == (list).tail); \
38 static void checkc_query_alloc(adns_state ads
, adns_query qu
) {
41 DLIST_CHECK(qu
->allocations
, an
, , {
45 static void checkc_query(adns_state ads
, adns_query qu
) {
46 assert(qu
->udpnextserver
< ads
->nservers
);
47 assert(!(qu
->udpsent
& (~0UL << ads
->nservers
)));
48 assert(!(qu
->tcpfailed
& (~0UL << ads
->nservers
)));
49 assert(qu
->udpretries
<= UDPMAXRETRIES
);
50 assert(qu
->search_pos
<= ads
->nsearchlist
);
53 static void checkc_global(adns_state ads
) {
56 assert(ads
->udpsocket
>= 0);
58 for (i
=0; i
<ads
->nsortlist
; i
++)
59 assert(!(ads
->sortlist
[i
].base
.s_addr
& ~ads
->sortlist
[i
].mask
.s_addr
));
61 assert(ads
->tcpserver
>= 0 && ads
->tcpserver
< ads
->nservers
);
63 switch (ads
->tcpstate
) {
64 case server_connecting
:
65 assert(ads
->tcpsocket
>= 0);
66 case server_disconnected
: /* fall through */
67 assert(!ads
->tcprecv
.used
);
68 assert(!ads
->tcpsend
.used
);
71 assert(ads
->tcpsocket
>= 0);
74 assert(!"ads->tcpstate value");
77 assert(ads
->searchlist
|| !ads
->nsearchlist
);
80 static void checkc_queue_timew(adns_state ads
) {
83 DLIST_CHECK(ads
->timew
, qu
, , {
87 assert(!qu
->tcpfailed
);
90 assert(ads
->tcpstate
!= server_ok
);
95 assert(!"timew state");
97 assert(!qu
->children
.head
&& !qu
->children
.tail
);
99 checkc_query_alloc(ads
,qu
);
103 static void checkc_queue_childw(adns_state ads
) {
104 adns_query parent
, child
;
106 DLIST_CHECK(ads
->childw
, parent
, , {
107 assert(parent
->state
== query_child
);
108 assert(parent
->children
.head
);
109 DLIST_CHECK(parent
->children
, child
, siblings
., {
110 assert(child
->parent
== parent
);
111 assert(child
->state
!= query_done
);
113 checkc_query(ads
,parent
);
114 checkc_query_alloc(ads
,parent
);
118 static void checkc_queue_output(adns_state ads
) {
121 DLIST_CHECK(ads
->output
, qu
, , {
122 assert(qu
->state
== query_done
);
123 assert(!qu
->children
.head
&& !qu
->children
.tail
);
125 checkc_query(ads
,qu
);
129 void adns__consistency(adns_state ads
, consistency_checks cc
) {
134 if (!(ads
->iflags
& adns_if_checkc_entex
)) return;
137 if ((ads
->iflags
& adns_if_checkc_freq
) != adns_if_checkc_freq
) return;
144 checkc_queue_timew(ads
);
145 checkc_queue_childw(ads
);
146 checkc_queue_output(ads
);