1 files changed, 78 insertions, 0 deletions
diff --git a/net-dns/djbdns/files/djbdns-dnscache-configurable-truncate-size-nov6.patch b/net-dns/djbdns/files/djbdns-dnscache-configurable-truncate-size-nov6.patch
new file mode 100644
index 000000000000..d855c212d198
--- /dev/null
+++ b/net-dns/djbdns/files/djbdns-dnscache-configurable-truncate-size-nov6.patch
@@ -0,0 +1,78 @@
+diff --git a/dnscache.c b/dnscache.c
+index 8c899a3..8b10571 100644
+--- a/dnscache.c
++++ b/dnscache.c
+@@ -51,6 +51,7 @@ static char myipincoming[4];
+ static char buf[1024];
+ uint64 numqueries = 0;
+ 
++static unsigned int truncate_len = 512;
+ 
+ static int udp53;
+ 
+@@ -77,7 +78,7 @@ void u_respond(int j)
+ {
+   if (!u[j].active) return;
+   response_id(u[j].id);
+-  if (response_len > 512) response_tc();
++  if (response_len > truncate_len) response_tc();
+   socket_send4(udp53,response,response_len,u[j].ip,u[j].port);
+   log_querydone(&u[j].active,response_len);
+   u[j].active = 0; --uactive;
+@@ -431,6 +432,15 @@ int main()
+   if (!cache_init(cachesize))
+     strerr_die3x(111,FATAL,"not enough memory for cache of size ",x);
+ 
++  x = env_get("TRUNCATELEN");
++  if (x) {
++    scan_ulong(x,&truncate_len);
++    if (truncate_len < 512)
++      truncate_len = 512;
++    if (truncate_len > 16384)
++      truncate_len = 16384;
++  }
++
+   if (env_get("HIDETTL"))
+     response_hidettl();
+   if (env_get("FORWARDONLY"))
+diff --git a/server.c b/server.c
+index e486fe1..63ad11c 100644
+--- a/server.c
++++ b/server.c
+@@ -2,6 +2,7 @@
+ #include "case.h"
+ #include "env.h"
+ #include "buffer.h"
++#include "scan.h"
+ #include "strerr.h"
+ #include "ip4.h"
+ #include "uint16.h"
+@@ -83,6 +84,7 @@ int main()
+ {
+   char *x;
+   int udp53;
++  unsigned int truncate_len = 512;
+ 
+   x = env_get("IP");
+   if (!x)
+@@ -105,11 +107,19 @@ int main()
+ 
+   buffer_putsflush(buffer_2,starting);
+ 
++  x = env_get("TRUNCATELEN");
++  if (x) {
++    scan_ulong(x,&truncate_len);
++    if (truncate_len < 512)
++      truncate_len = 512;
++    if (truncate_len > 16384)
++      truncate_len = 16384;
++  }
+   for (;;) {
+     len = socket_recv4(udp53,buf,sizeof buf,ip,&port);
+     if (len < 0) continue;
+     if (!doit()) continue;
+-    if (response_len > 512) response_tc();
++    if (response_len > truncate_len) response_tc();
+     socket_send4(udp53,response,response_len,ip,port);
+     /* may block for buffer space; if it fails, too bad */
+   }