nodejs
diff --git a/Collapse file
‎lib/dns.js‎
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+1-1Lines changed: 1 addition & 1 deletion b/Collapse file
‎lib/dns.js‎
Copy file name to clipboardExpand all lines: lib/dns.js
+1-1Lines changed: 1 addition & 1 deletion
diff --git a/Collapse file
‎test/parallel/test-c-ares.js‎
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+5Lines changed: 5 additions & 0 deletions b/Collapse file
‎test/parallel/test-c-ares.js‎
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+5Lines changed: 5 additions & 0 deletions
@@ -241,7 +241,7 @@ function resolver(bindingName) {
 }
 
 
-var resolveMap = {};
+var resolveMap = Object.create(null);
 exports.resolve4 = resolveMap.A = resolver('queryA');
 exports.resolve6 = resolveMap.AAAA = resolver('queryAaaa');
 exports.resolveCname = resolveMap.CNAME = resolver('queryCname');
 
@@ -27,6 +27,11 @@ assert.throws(function() {
   dns.resolve('www.google.com', 'HI');
 }, /Unknown type/);
 
+// Try calling resolve with an unsupported type that's an object key
+assert.throws(function() {
+  dns.resolve('www.google.com', 'toString');
+}, /Unknown type/);
+
 // Windows doesn't usually have an entry for localhost 127.0.0.1 in
 // C:\Windows\System32\drivers\etc\hosts
 // so we disable this test on Windows.
Original file line number	Diff line number	Diff line change
`@@ -241,7 +241,7 @@ function resolver(bindingName) {`
`241`	`241`	`}`
`242`	`242`
`243`	`243`
`244`		`-var resolveMap = {};`
	`244`	`+var resolveMap = Object.create(null);`
`245`	`245`	`exports.resolve4 = resolveMap.A = resolver('queryA');`
`246`	`246`	`exports.resolve6 = resolveMap.AAAA = resolver('queryAaaa');`
`247`	`247`	`exports.resolveCname = resolveMap.CNAME = resolver('queryCname');`