3 files changed, 65 insertions, 1 deletions

diff --git a/hscript/network.cc b/hscript/network.cc
index 3816415..2f4111e 100644
--- a/hscript/network.cc
+++ b/hscript/network.cc
@@ -28,6 +28,7 @@
 
 using namespace Horizon::Keys;
 
+
 Key *Network::parseFromData(const std::string &data, int lineno, int *errors,
                             int *) {
     bool value;
@@ -303,6 +304,52 @@ bool NetAddress::execute(ScriptOptions) const {
 }
 
 
+Key *Nameserver::parseFromData(const std::string &data, int lineno,
+                               int *errors, int *) {
+    char addr_buf[16];
+    static const std::string valid_chars("1234567890ABCDEFabcdef:.");
+
+    if(data.find_first_not_of(valid_chars) != std::string::npos) {
+        if(errors) *errors += 0;
+        output_error("installfile:" + std::to_string(lineno),
+                     "nameserver: expected an IP address");
+        if(data.find_first_of("[]") != std::string::npos) {
+            output_info("installfile:" + std::to_string(lineno),
+                        "nameserver: hint: you don't have to enclose IPv6 "
+                        "addresses in [] brackets");
+        }
+        return nullptr;
+    }
+
+    if(data.find(':') != std::string::npos) {
+        /* IPv6 */
+        if(::inet_pton(AF_INET6, data.c_str(), &addr_buf) != 1) {
+            if(errors) *errors += 1;
+            output_error("installfile:" + std::to_string(lineno),
+                         "nameserver: '" + data + "' is not a valid IPv6 "
+                         "address", "hint: a ':' was found, so an IPv6 "
+                         "address was expected");
+            return nullptr;
+        }
+    } else {
+        /* IPv4 */
+        if(::inet_pton(AF_INET, data.c_str(), &addr_buf) != 1) {
+            if(errors) *errors += 1;
+            output_error("installfile:" + std::to_string(lineno),
+                         "nameserver: '" + data + "' is not a valid IPv4 "
+                         "address");
+            return nullptr;
+        }
+    }
+
+    return new Nameserver(lineno, data);
+}
+
+bool Nameserver::execute(ScriptOptions) const {
+    return false;
+}
+
+
 Key *NetSSID::parseFromData(const std::string &data, int lineno, int *errors,
                             int *) {
     std::string iface, ssid, secstr, passphrase;
diff --git a/hscript/network.hh b/hscript/network.hh
index 411f4b3..b556ab8 100644
--- a/hscript/network.hh
+++ b/hscript/network.hh
@@ -69,7 +69,12 @@ public:
     bool execute(ScriptOptions) const override;
 };
 
-class Nameserver : public Key {
+class Nameserver : public StringKey {
+private:
+    Nameserver(int _line, const std::string &ns) : StringKey(_line, ns) {}
+public:
+    static Key *parseFromData(const std::string &, int, int *, int *);
+    bool execute(ScriptOptions) const override;
 };
 
 class NetSSID : public Key {
diff --git a/hscript/script.cc b/hscript/script.cc
index c99abe5..6ede4c4 100644
--- a/hscript/script.cc
+++ b/hscript/script.cc
@@ -98,6 +98,7 @@ struct Script::ScriptPrivate {
 
     /*! Network addressing configuration */
     std::vector< std::unique_ptr<NetAddress> > addresses;
+    std::vector< std::unique_ptr<Nameserver> > nses;
     std::vector< std::unique_ptr<NetSSID> > ssids;
 
     /*! APK repositories */
@@ -142,6 +143,10 @@ struct Script::ScriptPrivate {
             std::unique_ptr<NetAddress> addr(dynamic_cast<NetAddress *>(obj));
             this->addresses.push_back(std::move(addr));
             return true;
+        } else if(key_name == "nameserver") {
+            std::unique_ptr<Nameserver> ns(dynamic_cast<Nameserver *>(obj));
+            this->nses.push_back(std::move(ns));
+            return true;
         } else if(key_name == "netssid") {
             std::unique_ptr<NetSSID> ssid(dynamic_cast<NetSSID *>(obj));
             this->ssids.push_back(std::move(ssid));
@@ -730,6 +735,13 @@ bool Script::validate() const {
         }
     }
 
+    /* REQ: Runner.Validate.nameserver */
+    for(auto &ns : this->internal->nses) {
+        if(!ns->validate(this->opts)) {
+            failures++;
+        }
+    }
+
     /* REQ: Runner.Validate.network.netssid */
     for(auto &ssid : this->internal->ssids) {
         if(!ssid->validate(this->opts)) {