[Bug-barcode] Correction to codabar

[Kees Cook]

Hi, with this correction, output barcodes match what I'm seeing with other
codabar outputs. Found in Debian:

Author: Chris Howie <address@hidden>
Description: Following codabar specification (Closes: #320908).

Index: barcode-0.99/codabar.c
===================================================================
--- barcode-0.99.orig/codabar.c 2014-01-16 10:47:29.089436277 -0800
+++ barcode-0.99/codabar.c      2014-01-16 10:47:29.085436222 -0800
@@ -28,10 +28,11 @@
 
 /* this is ordered in decades to simplify encoding */
 static char alphabet[] = 
-   "0123456789" "-$:/.+ABCD";
+   "0123456789" "-$:/.+ABCDTN*E";
 
 #define CODE_A 16
 #define CODE_B 17
+#define CODE_T 20
 
 #define NARROW 12
 #define WIDE   14
@@ -41,7 +42,8 @@
 "1111133","1111331","1113113","3311111","1131131",
 "3111131","1311113","1311311","1331111","3113111",
 "1113311","1133111","3111313","3131113","3131311",
-"1131313","1133131","1313113","1113133","1113331" };
+"1131313","1133131","1313113","1113133","1113331",
+"1133131","1313113","1113133","1113331"};
 
 /*
  * Check that the text can be encoded. Returns 0 or -1.
@@ -166,13 +168,13 @@
     }
     if (!startpresent) {
        if (usesum) {
-           /* if no start character specified, B is used as a stop char */
-           checksum += CODE_B;
+           /* if no start character specified, T is used as a stop char */
+           checksum += CODE_T;
            checksum = (checksum + 15) / 16 * 16 - checksum;
            add_one(ptr, checksum);
            ptr += strlen(ptr);
        }
-       add_one(ptr, CODE_B);
+       add_one(ptr, CODE_T);
     }
     bc->partial = partial;
     bc->textinfo = textinfo;

-- 
Kees Cook                                            @outflux.net