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[GNUnet-SVN] r19000 - gnunet/src/dns
From: |
gnunet |
Subject: |
[GNUnet-SVN] r19000 - gnunet/src/dns |
Date: |
Thu, 5 Jan 2012 14:31:44 +0100 |
Author: grothoff
Date: 2012-01-05 14:31:44 +0100 (Thu, 05 Jan 2012)
New Revision: 19000
Modified:
gnunet/src/dns/dnsparser.c
gnunet/src/dns/gnunet-dns-redirector.c
gnunet/src/dns/gnunet-service-dns_new.c
Log:
-stuff
Modified: gnunet/src/dns/dnsparser.c
===================================================================
--- gnunet/src/dns/dnsparser.c 2012-01-05 13:04:39 UTC (rev 18999)
+++ gnunet/src/dns/dnsparser.c 2012-01-05 13:31:44 UTC (rev 19000)
@@ -787,7 +787,9 @@
*buf = GNUNET_malloc (off);
*buf_length = off;
memcpy (*buf, tmp, off);
- return trc;
+ if (GNUNET_YES == trc)
+ return GNUNET_NO;
+ return GNUNET_OK;
}
Modified: gnunet/src/dns/gnunet-dns-redirector.c
===================================================================
--- gnunet/src/dns/gnunet-dns-redirector.c 2012-01-05 13:04:39 UTC (rev
18999)
+++ gnunet/src/dns/gnunet-dns-redirector.c 2012-01-05 13:31:44 UTC (rev
19000)
@@ -63,19 +63,35 @@
static void
modify_record (const struct GNUNET_DNSPARSER_Record *record)
{
+ char buf[INET6_ADDRSTRLEN];
+
switch (record->type)
{
case GNUNET_DNSPARSER_TYPE_A:
if (record->data.raw.data_len != sizeof (struct in_addr))
return;
if (NULL != n4)
+ {
+ if (verbosity > 1)
+ fprintf (stderr,
+ "Changing A record from `%s' to `%s'\n",
+ inet_ntop (AF_INET, record->data.raw.data, buf, sizeof (buf)),
+ n4);
inet_pton (AF_INET, n4, record->data.raw.data);
+ }
break;
case GNUNET_DNSPARSER_TYPE_AAAA:
if (record->data.raw.data_len != sizeof (struct in6_addr))
return;
if (NULL != n6)
+ {
+ if (verbosity > 1)
+ fprintf (stderr,
+ "Changing AAAA record from `%s' to `%s'\n",
+ inet_ntop (AF_INET6, record->data.raw.data, buf, sizeof (buf)),
+ n4);
inet_pton (AF_INET6, n6, record->data.raw.data);
+ }
break;
case GNUNET_DNSPARSER_TYPE_NS:
case GNUNET_DNSPARSER_TYPE_CNAME:
@@ -128,8 +144,7 @@
p = GNUNET_DNSPARSER_parse (request, request_length);
if (NULL == p)
{
- fprintf (stderr, "Received malformed DNS packet!\n");
- // FIXME: drop instead?
+ fprintf (stderr, "Received malformed DNS packet, leaving it untouched\n");
GNUNET_DNS_request_forward (rh);
return;
}
@@ -138,11 +153,22 @@
buf = NULL;
ret = GNUNET_DNSPARSER_pack (p, 1024, &buf, &len);
GNUNET_DNSPARSER_free_packet (p);
- fprintf (stderr, "PACK: %d\n", ret);
if (GNUNET_OK != ret)
+ {
+ if (GNUNET_NO == ret)
+ fprintf (stderr,
+ "Modified DNS response did not fit, keeping old response\n");
+ else
+ GNUNET_break (0); /* our modifications should have been sane! */
GNUNET_DNS_request_forward (rh);
+ }
else
+ {
+ if (verbosity > 0)
+ fprintf (stdout,
+ "Injecting modified DNS response\n");
GNUNET_DNS_request_answer (rh, len, buf);
+ }
GNUNET_free_non_null (buf);
}
Modified: gnunet/src/dns/gnunet-service-dns_new.c
===================================================================
--- gnunet/src/dns/gnunet-service-dns_new.c 2012-01-05 13:04:39 UTC (rev
18999)
+++ gnunet/src/dns/gnunet-service-dns_new.c 2012-01-05 13:31:44 UTC (rev
19000)
@@ -1060,6 +1060,8 @@
return;
}
GNUNET_free_non_null (rr->payload);
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+ _("Changing DNS resply according to client
specifications\n"));
rr->payload = GNUNET_malloc (msize);
memcpy (rr->payload, &resp[1], msize);
if (rr->phase == RP_QUERY)
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