Index: src/OFDNSResolver.m
==================================================================
--- src/OFDNSResolver.m
+++ src/OFDNSResolver.m
@@ -58,11 +58,11 @@
  * TODO:
  *
  *  - Timeouts
  *  - Resolve with each search domain
  *  - Iterate through name servers
- *  - IPv6 (for responses and for talking to the name servers)
+ *  - IPv6 for talking to the name servers
  *  - Fallback to TCP
  */
 
 @interface OFDNSResolver_context: OFObject
 {
@@ -182,10 +182,69 @@
 
 	*idx = i;
 
 	return [components componentsJoinedByString: @"."];
 }
+
+static OFString *
+parseAAAA(const unsigned char *buffer)
+{
+	OFMutableString *data = [OFMutableString string];
+	int_fast8_t zerosStart = -1, maxZerosStart = -1;
+	uint_fast8_t zerosCount = 0, maxZerosCount = 0;
+	bool first = true;
+
+	for (uint_fast8_t i = 0; i < 16; i += 2) {
+		if (buffer[i] == 0 && buffer[i + 1] == 0) {
+			if (zerosStart >= 0)
+				zerosCount++;
+			else {
+				zerosStart = i;
+				zerosCount = 1;
+			}
+		} else {
+			if (zerosCount > maxZerosCount) {
+				maxZerosStart = zerosStart;
+				maxZerosCount = zerosCount;
+			}
+
+			zerosStart = -1;
+		}
+	}
+	if (zerosCount > maxZerosCount) {
+		maxZerosStart = zerosStart;
+		maxZerosCount = zerosCount;
+	}
+
+	if (maxZerosCount >= 2) {
+		for (uint_fast8_t i = 0; i < maxZerosStart; i += 2) {
+			[data appendFormat: (first ? @"%x" : @":%x"),
+					    (buffer[i] << 8) | buffer[i + 1]];
+			first = false;
+		}
+
+		[data appendString: @"::"];
+		first = true;
+
+		for (uint_fast8_t i = maxZerosStart + (maxZerosCount * 2);
+		    i < 16; i += 2) {
+			[data appendFormat: (first ? @"%x" : @":%x"),
+					    (buffer[i] << 8) | buffer[i + 1]];
+			first = false;
+		}
+	} else {
+		for (uint_fast8_t i = 0; i < 16; i += 2) {
+			[data appendFormat: (first ? @"%x" : @":%x"),
+					    (buffer[i] << 8) | buffer[i + 1]];
+			first = false;
+		}
+	}
+
+	[data makeImmutable];
+
+	return data;
+}
 
 static id
 parseData(const unsigned char *buffer, size_t length, size_t i,
     size_t dataLength, of_dns_resource_record_class_t recordClass,
     of_dns_resource_record_type_t recordType)
@@ -214,10 +273,17 @@
 
 			if (j != i + dataLength)
 				@throw [OFInvalidServerReplyException
 				    exception];
 
+			break;
+		case OF_DNS_RESOURCE_RECORD_TYPE_AAAA:
+			if (dataLength != 16)
+				@throw [OFInvalidServerReplyException
+				    exception];
+
+			data = parseAAAA(&buffer[i]);
 			break;
 		default:
 			data = [OFData dataWithItems: &buffer[i]
 					       count: dataLength];
 			break;

Index: src/OFDNSResourceRecord.h
==================================================================
--- src/OFDNSResourceRecord.h
+++ src/OFDNSResourceRecord.h
@@ -26,26 +26,37 @@
 
 /*!
  * @brief The class of a DNS resource record.
  */
 typedef enum {
+	/*! IN */
 	OF_DNS_RESOURCE_RECORD_CLASS_IN	 =   1,
+	/*! Any class. Only for queries. */
 	OF_DNS_RESOURCE_RECORD_CLASS_ANY = 255,
 } of_dns_resource_record_class_t;
 
 /*!
  * @brief The type of a DNS resource record.
  */
 typedef enum {
+	/*! A */
 	OF_DNS_RESOURCE_RECORD_TYPE_A	  =   1,
+	/*! NS */
 	OF_DNS_RESOURCE_RECORD_TYPE_NS	  =   2,
+	/*! CNAME */
 	OF_DNS_RESOURCE_RECORD_TYPE_CNAME =   5,
+	/*! SOA */
 	OF_DNS_RESOURCE_RECORD_TYPE_SOA	  =   6,
+	/*! PTR */
 	OF_DNS_RESOURCE_RECORD_TYPE_PTR	  =  12,
+	/*! MX */
 	OF_DNS_RESOURCE_RECORD_TYPE_MX	  =  15,
+	/*! TXT */
 	OF_DNS_RESOURCE_RECORD_TYPE_TXT	  =  16,
+	/*! AAAA */
 	OF_DNS_RESOURCE_RECORD_TYPE_AAAA  =  28,
+	/*! All types. Only for queries. */
 	OF_DNS_RESOURCE_RECORD_TYPE_ALL	  = 255,
 } of_dns_resource_record_type_t;
 
 /*!
  * @class OFDNSResourceRecord OFDNSResourceRecord.h ObjFW/OFDNSResourceRecord.h