Added support for AIX platform (for issue #5)

aix.js

@@ -0,0 +1,95 @@
+"use strict";
+
+const getSqlStatement = family => {
+  let sql =
+    "select NEXT_HOP, LOCAL_BINDING_INTERFACE from QSYS2.NETSTAT_ROUTE_INFO where ROUTE_TYPE='DFTROUTE' and NEXT_HOP!='*DIRECT'";
+
+  if (family === "v4") {
+    sql += " and CONNECTION_TYPE='IPV4'";
+  } else {
+    sql += " and CONNECTION_TYPE='IPV6'";
+  }
+
+  return sql;
+};
+
+const getGatewayInformationAsync = async family => {
+  return new Promise((resolve, reject) => {
+    try {
+      const idbConnector = require("idb-connector");
+
+      const dbconn = new idbConnector.dbconn();
+      dbconn.conn("*LOCAL");
+
+      const sql = getSqlStatement(family);
+      const stmt = new idbConnector.dbstmt(dbconn);
+
+      stmt.exec(sql, async results => {
+        try {
+          stmt.close();
+          dbconn.disconn();
+          dbconn.close();
+        } catch (err) {
+          reject(new Error("Unable to determine default gateway"));
+          return;
+        }
+
+        if (results && results[0] && results[0].NEXT_HOP) {
+          resolve({
+            gateway: results[0].NEXT_HOP,
+            interface: results[0].LOCAL_BINDING_INTERFACE || ""
+          });
+        } else {
+          reject(new Error("Unable to determine default gateway"));
+        }
+      });
+    } catch (err) {
+      reject(new Error("Unable to determine default gateway"));
+      return;
+    }
+  });
+};
+
+const getGatewayInformationSync = family => {
+  let results;
+  try {
+    const idbConnector = require("idb-connector");
+
+    const dbconn = new idbConnector.dbconn();
+    dbconn.conn("*LOCAL");
+
+    const sql = getSqlStatement(family);
+    const stmt = new idbConnector.dbstmt(dbconn);
+
+    results = stmt.execSync(sql);
+
+    stmt.close();
+    dbconn.disconn();
+    dbconn.close();
+  } catch (err) {
+    throw new Error("Unable to determine default gateway");
+  }
+
+  if (results && results[0] && results[0].NEXT_HOP) {
+    return {
+      gateway: results[0].NEXT_HOP,
+      interface: results[0].LOCAL_BINDING_INTERFACE || ""
+    };
+  } else {
+    throw new Error("Unable to determine default gateway");
+  }
+};
+
+const promise = family => {
+  return getGatewayInformationAsync(family);
+};
+
+const sync = family => {
+  return getGatewayInformationSync(family);
+};
+
+module.exports.v4 = () => promise("v4");
+module.exports.v6 = () => promise("v6");
+
+module.exports.v4.sync = () => sync("v4");
+module.exports.v6.sync = () => sync("v6");

index.js

@@ -9,7 +9,8 @@ if ([
   "linux",
   "openbsd",
   "sunos",
-  "win32"
+  "win32",
+  "aix"
 ].indexOf(platform) !== -1) {
   const families = require(`./${platform}`);
   module.exports.v4 = () => families.v4();

package.json

@@ -15,6 +15,9 @@
     "execa": "^1.0.0",
     "ip-regex": "^2.1.0"
   },
+  "optionalDependencies": {
+    "idb-connector": "^1.1.8"
+  },
   "devDependencies": {
     "eslint": "^5.5.0",
     "eslint-config-silverwind": "^2.0.9",
@@ -28,7 +31,8 @@
     "linux",
     "openbsd",
     "sunos",
-    "win32"
+    "win32",
+    "aix"
   ],
   "files": [
     "index.js",
@@ -38,7 +42,8 @@
     "linux.js",
     "openbsd.js",
     "sunos.js",
-    "win32.js"
+    "win32.js",
+    "aix.js"
   ],
   "keywords": [
     "default gateway",