X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fdns.cpp;h=14305ccab2f49a2a4e94f94ee67dc543c34e92c2;hb=68211809ee3111bdc9609fbd46dc3c875fbb5ea6;hp=75e5731fe93edac1951162665719424370b9b79f;hpb=0035820e13a915a3bf1a440fcedf8ce25fe37a22;p=user%2Fhenk%2Fcode%2Finspircd.git

diff --git a/src/dns.cpp b/src/dns.cpp
index 75e5731fe..14305ccab 100644
--- a/src/dns.cpp
+++ b/src/dns.cpp
@@ -700,8 +700,16 @@ DNSResult DNS::GetResult()
 				/* Identical handling to PTR */
 
 			case DNS_QUERY_PTR:
+			{
 				/* Reverse lookups just come back as char* */
 				resultstr = std::string((const char*)data.first);
+				if (resultstr.find_first_not_of("0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ.-") != std::string::npos)
+				{
+					std::string ro = req->orig;
+					delete req;
+					return DNSResult(this_id | ERROR_MASK, "Invalid char(s) in reply", 0, ro);
+				}
+			}
 			break;
 
 			default: