From b3286eb015079950554508e0724fd5f12c71833f Mon Sep 17 00:00:00 2001
From: Christian Cleberg <hello@cleberg.net>
Date: Wed, 24 May 2023 21:18:39 -0500
Subject: add geolocation functionality

---
 .../reader/src/MaxMind/Db/Reader/Util.php          | 32 ++++++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 vendor/maxmind-db/reader/src/MaxMind/Db/Reader/Util.php

(limited to 'vendor/maxmind-db/reader/src/MaxMind/Db/Reader/Util.php')

diff --git a/vendor/maxmind-db/reader/src/MaxMind/Db/Reader/Util.php b/vendor/maxmind-db/reader/src/MaxMind/Db/Reader/Util.php
new file mode 100644
index 0000000..89db715
--- /dev/null
+++ b/vendor/maxmind-db/reader/src/MaxMind/Db/Reader/Util.php
@@ -0,0 +1,32 @@
+<?php
+
+declare(strict_types=1);
+
+namespace MaxMind\Db\Reader;
+
+class Util
+{
+    /**
+     * @param resource $stream
+     */
+    public static function read($stream, int $offset, int $numberOfBytes): string
+    {
+        if ($numberOfBytes === 0) {
+            return '';
+        }
+        if (fseek($stream, $offset) === 0) {
+            $value = fread($stream, $numberOfBytes);
+
+            // We check that the number of bytes read is equal to the number
+            // asked for. We use ftell as getting the length of $value is
+            // much slower.
+            if ($value !== false && ftell($stream) - $offset === $numberOfBytes) {
+                return $value;
+            }
+        }
+
+        throw new InvalidDatabaseException(
+            'The MaxMind DB file contains bad data'
+        );
+    }
+}
-- 
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