From 10f252e182c53cdb49453055d995a945078ad6eb Mon Sep 17 00:00:00 2001
From: Artem <artem@noreply.localhost>
Date: Tue, 13 Feb 2024 11:33:09 +0300
Subject: [PATCH] =?UTF-8?q?=D0=94=D0=BE=D0=BF=D0=B8=D1=81=D0=B0=D0=BD?=
 =?UTF-8?q?=D0=B0=20=D1=84=D1=83=D0=BD=D0=BA=D1=86=D0=B8=D1=8F?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 printlib.php | 32 +++++++++++++++++++++-----------
 1 file changed, 21 insertions(+), 11 deletions(-)

diff --git a/printlib.php b/printlib.php
index 452da54..e8ca441 100644
--- a/printlib.php
+++ b/printlib.php
@@ -5,7 +5,13 @@ define("ESC", "\x1b");
 define("GS", "\x1d");
 define("LF", "\x0a");
 define("PORT", "/dev/usb/lp0");
-function rawlen($data) {}
+function rawlen($data) {
+    if (strlen($data)<255 and strlen($data)<MAX_CHAR) {
+        return hex2bin(dechex(strlen($data)));
+    } else {
+        return false;
+    }
+}
 function initprint() {
     return file_put_contents(PORT, ESC . "@");
 }
@@ -18,16 +24,20 @@ function println($data) {
 }
 function printcode39($data) {}
 function printcode128($data) {
-    $lp=fopen(PORT, 'w');
-    fwrite($lp, "\x1b@");
-    fwrite($lp, "\x1dh\x50");
-    fwrite($lp, "\x1dH\x02");
-    fwrite($lp, "\x1df\x01");
-    fwrite($lp, "\x1dk\x49");
-    fwrite($lp, rawlen($data))
-    fwrite($lp, $data);
-    fwrite($lp, "\x0a");
-    fclose($lp);
+    if (rawlen($data)) {
+        $lp=fopen(PORT, 'w');
+        fwrite($lp, "\x1dh\x50");
+        fwrite($lp, "\x1dH\x02");
+        fwrite($lp, "\x1df\x01");
+        fwrite($lp, "\x1dk\x49");
+        fwrite($lp, rawlen($data));
+        fwrite($lp, $data);
+        fwrite($lp, "\x0a");
+        fclose($lp);
+        return true;
+    } else {
+        return false;
+    }
 }
 function printean13($data) {}
 function printean8($data) {}