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$NetBSD: patch-ab,v 1.17 2010/06/05 14:49:51 wiz Exp $
--- dns.c.orig 2009-11-27 07:49:15.000000000 +0000
+++ dns.c
@@ -309,6 +309,17 @@ char nullstring[] = "";
int use_dns = 1;
+#ifdef res_ninit
+#define RES_INIT() res_ninit(&myres);
+#define RES_MKQUERY(a, b, c, d, e, f, g, h, i) \
+ res_nmkquery(&myres, a, b, c, d, e, f, g, h, i)
+struct __res_state myres;
+#else
+#define RES_INIT() res_init();
+#define RES_MKQUERY(a, b, c, d, e, f, g, h, i) \
+ res_mkquery(a, b, c, d, e, f, g, h, i)
+#define myres _res
+#endif
/* Code */
#ifdef CorruptCheck
@@ -484,14 +495,14 @@ void dns_open(void)
int option,i;
if (!dns) return;
- res_init();
- if (!_res.nscount) {
+ RES_INIT();
+ if (!myres.nscount) {
fprintf(stderr,"No nameservers defined.\n");
exit(-1);
}
- _res.options|= RES_RECURSE | RES_DEFNAMES | RES_DNSRCH;
- for (i = 0;i < _res.nscount;i++)
- _res.nsaddr_list[i].sin_family = AF_INET;
+ myres.options|= RES_RECURSE | RES_DEFNAMES | RES_DNSRCH;
+ for (i = 0;i < myres.nscount;i++)
+ myres.nsaddr_list[i].sin_family = AF_INET;
resfd = socket(AF_INET, SOCK_DGRAM, 0);
if (resfd == -1) {
fprintf(stderr,"Unable to allocate socket for nameserver communication: %s\n",
@@ -874,17 +885,17 @@ void dorequest(char *s,int type,word id)
{
packetheader *hp;
int r,i;
- int buf[(MaxPacketsize/sizeof (int))+1];
+ unsigned char buf[MaxPacketsize];
- r = res_mkquery(QUERY,s,C_IN,type,NULL,0,NULL,(unsigned char*)buf,MaxPacketsize);
+ r = RES_MKQUERY(QUERY,s,C_IN,type,NULL,0,NULL,(unsigned char*)buf,MaxPacketsize);
if (r == -1) {
restell("Resolver error: Query too large.");
return;
}
hp = (packetheader *)buf;
hp->id = id; /* htons() deliberately left out (redundant) */
- for (i = 0;i < _res.nscount;i++)
- (void)sendto(resfd,buf,r,0,(struct sockaddr *)&_res.nsaddr_list[i],
+ for (i = 0;i < myres.nscount;i++)
+ (void)sendto(resfd,buf,r,0,(struct sockaddr *)&myres.nsaddr_list[i],
sizeof(struct sockaddr));
}
@@ -1240,18 +1251,18 @@ void dns_ack(void)
/* Check to see if this server is actually one we sent to */
if ( addrcmp( (void *) &(from4->sin_addr), (void *) &localhost,
(int) AF_INET ) == 0 ) {
- for (i = 0;i < _res.nscount;i++)
- if ( addrcmp( (void *) &(_res.nsaddr_list[i].sin_addr),
+ for (i = 0;i < myres.nscount;i++)
+ if ( addrcmp( (void *) &(myres.nsaddr_list[i].sin_addr),
(void *) &(from4->sin_addr), (int) AF_INET ) == 0 ||
- addrcmp( (void *) &(_res.nsaddr_list[i].sin_addr),
+ addrcmp( (void *) &(myres.nsaddr_list[i].sin_addr),
(void *) &unspec_addr, (int) AF_INET ) == 0 ) /* 0.0.0.0 replies as 127.0.0.1 */
break;
} else
- for (i = 0;i < _res.nscount;i++)
- if ( addrcmp( (void *) &(_res.nsaddr_list[i].sin_addr),
+ for (i = 0;i < myres.nscount;i++)
+ if ( addrcmp( (void *) &(myres.nsaddr_list[i].sin_addr),
(void *) &(from4->sin_addr), AF_INET ) == 0 )
break;
- if (i == _res.nscount) {
+ if (i == myres.nscount) {
snprintf(tempstring, sizeof(tempstring), "Resolver error: Received reply from unknown source: %s",
inet_ntoa(from4->sin_addr ));
restell(tempstring);
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