--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mupdf-source/thirdparty/zint/backend/imail.c	Mon Sep 15 11:43:07 2025 +0200
@@ -0,0 +1,456 @@
+/* imail.c - Handles Intelligent Mail (aka OneCode) for USPS */
+/*
+    libzint - the open source barcode library
+    Copyright (C) 2008-2024 Robin Stuart <rstuart114@gmail.com>
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions
+    are met:
+
+    1. Redistributions of source code must retain the above copyright
+       notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+       notice, this list of conditions and the following disclaimer in the
+       documentation and/or other materials provided with the distribution.
+    3. Neither the name of the project nor the names of its contributors
+       may be used to endorse or promote products derived from this software
+       without specific prior written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+    ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+    ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
+    FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+    DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+    OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+    HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+    LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+    OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+    SUCH DAMAGE.
+ */
+/* SPDX-License-Identifier: BSD-3-Clause */
+
+/*  The function "USPS_MSB_Math_CRC11GenerateFrameCheckSequence"
+    is Copyright (C) 2006 United States Postal Service */
+
+#include "common.h"
+#include "large.h"
+
+#define SODIUM_MNS_F (IS_NUM_F | IS_MNS_F) /* SODIUM "0123456789-" */
+
+/* The following lookup tables were generated using the code in Appendix C */
+
+/* Appendix D Table 1 - 5 of 13 characters */
+static const unsigned short AppxD_I[1287] = {
+    0x001F, 0x1F00, 0x002F, 0x1E80, 0x0037, 0x1D80, 0x003B, 0x1B80, 0x003D, 0x1780,
+    0x003E, 0x0F80, 0x004F, 0x1E40, 0x0057, 0x1D40, 0x005B, 0x1B40, 0x005D, 0x1740,
+    0x005E, 0x0F40, 0x0067, 0x1CC0, 0x006B, 0x1AC0, 0x006D, 0x16C0, 0x006E, 0x0EC0,
+    0x0073, 0x19C0, 0x0075, 0x15C0, 0x0076, 0x0DC0, 0x0079, 0x13C0, 0x007A, 0x0BC0,
+    0x007C, 0x07C0, 0x008F, 0x1E20, 0x0097, 0x1D20, 0x009B, 0x1B20, 0x009D, 0x1720,
+    0x009E, 0x0F20, 0x00A7, 0x1CA0, 0x00AB, 0x1AA0, 0x00AD, 0x16A0, 0x00AE, 0x0EA0,
+    0x00B3, 0x19A0, 0x00B5, 0x15A0, 0x00B6, 0x0DA0, 0x00B9, 0x13A0, 0x00BA, 0x0BA0,
+    0x00BC, 0x07A0, 0x00C7, 0x1C60, 0x00CB, 0x1A60, 0x00CD, 0x1660, 0x00CE, 0x0E60,
+    0x00D3, 0x1960, 0x00D5, 0x1560, 0x00D6, 0x0D60, 0x00D9, 0x1360, 0x00DA, 0x0B60,
+    0x00DC, 0x0760, 0x00E3, 0x18E0, 0x00E5, 0x14E0, 0x00E6, 0x0CE0, 0x00E9, 0x12E0,
+    0x00EA, 0x0AE0, 0x00EC, 0x06E0, 0x00F1, 0x11E0, 0x00F2, 0x09E0, 0x00F4, 0x05E0,
+    0x00F8, 0x03E0, 0x010F, 0x1E10, 0x0117, 0x1D10, 0x011B, 0x1B10, 0x011D, 0x1710,
+    0x011E, 0x0F10, 0x0127, 0x1C90, 0x012B, 0x1A90, 0x012D, 0x1690, 0x012E, 0x0E90,
+    0x0133, 0x1990, 0x0135, 0x1590, 0x0136, 0x0D90, 0x0139, 0x1390, 0x013A, 0x0B90,
+    0x013C, 0x0790, 0x0147, 0x1C50, 0x014B, 0x1A50, 0x014D, 0x1650, 0x014E, 0x0E50,
+    0x0153, 0x1950, 0x0155, 0x1550, 0x0156, 0x0D50, 0x0159, 0x1350, 0x015A, 0x0B50,
+    0x015C, 0x0750, 0x0163, 0x18D0, 0x0165, 0x14D0, 0x0166, 0x0CD0, 0x0169, 0x12D0,
+    0x016A, 0x0AD0, 0x016C, 0x06D0, 0x0171, 0x11D0, 0x0172, 0x09D0, 0x0174, 0x05D0,
+    0x0178, 0x03D0, 0x0187, 0x1C30, 0x018B, 0x1A30, 0x018D, 0x1630, 0x018E, 0x0E30,
+    0x0193, 0x1930, 0x0195, 0x1530, 0x0196, 0x0D30, 0x0199, 0x1330, 0x019A, 0x0B30,
+    0x019C, 0x0730, 0x01A3, 0x18B0, 0x01A5, 0x14B0, 0x01A6, 0x0CB0, 0x01A9, 0x12B0,
+    0x01AA, 0x0AB0, 0x01AC, 0x06B0, 0x01B1, 0x11B0, 0x01B2, 0x09B0, 0x01B4, 0x05B0,
+    0x01B8, 0x03B0, 0x01C3, 0x1870, 0x01C5, 0x1470, 0x01C6, 0x0C70, 0x01C9, 0x1270,
+    0x01CA, 0x0A70, 0x01CC, 0x0670, 0x01D1, 0x1170, 0x01D2, 0x0970, 0x01D4, 0x0570,
+    0x01D8, 0x0370, 0x01E1, 0x10F0, 0x01E2, 0x08F0, 0x01E4, 0x04F0, 0x01E8, 0x02F0,
+    0x020F, 0x1E08, 0x0217, 0x1D08, 0x021B, 0x1B08, 0x021D, 0x1708, 0x021E, 0x0F08,
+    0x0227, 0x1C88, 0x022B, 0x1A88, 0x022D, 0x1688, 0x022E, 0x0E88, 0x0233, 0x1988,
+    0x0235, 0x1588, 0x0236, 0x0D88, 0x0239, 0x1388, 0x023A, 0x0B88, 0x023C, 0x0788,
+    0x0247, 0x1C48, 0x024B, 0x1A48, 0x024D, 0x1648, 0x024E, 0x0E48, 0x0253, 0x1948,
+    0x0255, 0x1548, 0x0256, 0x0D48, 0x0259, 0x1348, 0x025A, 0x0B48, 0x025C, 0x0748,
+    0x0263, 0x18C8, 0x0265, 0x14C8, 0x0266, 0x0CC8, 0x0269, 0x12C8, 0x026A, 0x0AC8,
+    0x026C, 0x06C8, 0x0271, 0x11C8, 0x0272, 0x09C8, 0x0274, 0x05C8, 0x0278, 0x03C8,
+    0x0287, 0x1C28, 0x028B, 0x1A28, 0x028D, 0x1628, 0x028E, 0x0E28, 0x0293, 0x1928,
+    0x0295, 0x1528, 0x0296, 0x0D28, 0x0299, 0x1328, 0x029A, 0x0B28, 0x029C, 0x0728,
+    0x02A3, 0x18A8, 0x02A5, 0x14A8, 0x02A6, 0x0CA8, 0x02A9, 0x12A8, 0x02AA, 0x0AA8,
+    0x02AC, 0x06A8, 0x02B1, 0x11A8, 0x02B2, 0x09A8, 0x02B4, 0x05A8, 0x02B8, 0x03A8,
+    0x02C3, 0x1868, 0x02C5, 0x1468, 0x02C6, 0x0C68, 0x02C9, 0x1268, 0x02CA, 0x0A68,
+    0x02CC, 0x0668, 0x02D1, 0x1168, 0x02D2, 0x0968, 0x02D4, 0x0568, 0x02D8, 0x0368,
+    0x02E1, 0x10E8, 0x02E2, 0x08E8, 0x02E4, 0x04E8, 0x0307, 0x1C18, 0x030B, 0x1A18,
+    0x030D, 0x1618, 0x030E, 0x0E18, 0x0313, 0x1918, 0x0315, 0x1518, 0x0316, 0x0D18,
+    0x0319, 0x1318, 0x031A, 0x0B18, 0x031C, 0x0718, 0x0323, 0x1898, 0x0325, 0x1498,
+    0x0326, 0x0C98, 0x0329, 0x1298, 0x032A, 0x0A98, 0x032C, 0x0698, 0x0331, 0x1198,
+    0x0332, 0x0998, 0x0334, 0x0598, 0x0338, 0x0398, 0x0343, 0x1858, 0x0345, 0x1458,
+    0x0346, 0x0C58, 0x0349, 0x1258, 0x034A, 0x0A58, 0x034C, 0x0658, 0x0351, 0x1158,
+    0x0352, 0x0958, 0x0354, 0x0558, 0x0361, 0x10D8, 0x0362, 0x08D8, 0x0364, 0x04D8,
+    0x0383, 0x1838, 0x0385, 0x1438, 0x0386, 0x0C38, 0x0389, 0x1238, 0x038A, 0x0A38,
+    0x038C, 0x0638, 0x0391, 0x1138, 0x0392, 0x0938, 0x0394, 0x0538, 0x03A1, 0x10B8,
+    0x03A2, 0x08B8, 0x03A4, 0x04B8, 0x03C1, 0x1078, 0x03C2, 0x0878, 0x03C4, 0x0478,
+    0x040F, 0x1E04, 0x0417, 0x1D04, 0x041B, 0x1B04, 0x041D, 0x1704, 0x041E, 0x0F04,
+    0x0427, 0x1C84, 0x042B, 0x1A84, 0x042D, 0x1684, 0x042E, 0x0E84, 0x0433, 0x1984,
+    0x0435, 0x1584, 0x0436, 0x0D84, 0x0439, 0x1384, 0x043A, 0x0B84, 0x043C, 0x0784,
+    0x0447, 0x1C44, 0x044B, 0x1A44, 0x044D, 0x1644, 0x044E, 0x0E44, 0x0453, 0x1944,
+    0x0455, 0x1544, 0x0456, 0x0D44, 0x0459, 0x1344, 0x045A, 0x0B44, 0x045C, 0x0744,
+    0x0463, 0x18C4, 0x0465, 0x14C4, 0x0466, 0x0CC4, 0x0469, 0x12C4, 0x046A, 0x0AC4,
+    0x046C, 0x06C4, 0x0471, 0x11C4, 0x0472, 0x09C4, 0x0474, 0x05C4, 0x0487, 0x1C24,
+    0x048B, 0x1A24, 0x048D, 0x1624, 0x048E, 0x0E24, 0x0493, 0x1924, 0x0495, 0x1524,
+    0x0496, 0x0D24, 0x0499, 0x1324, 0x049A, 0x0B24, 0x049C, 0x0724, 0x04A3, 0x18A4,
+    0x04A5, 0x14A4, 0x04A6, 0x0CA4, 0x04A9, 0x12A4, 0x04AA, 0x0AA4, 0x04AC, 0x06A4,
+    0x04B1, 0x11A4, 0x04B2, 0x09A4, 0x04B4, 0x05A4, 0x04C3, 0x1864, 0x04C5, 0x1464,
+    0x04C6, 0x0C64, 0x04C9, 0x1264, 0x04CA, 0x0A64, 0x04CC, 0x0664, 0x04D1, 0x1164,
+    0x04D2, 0x0964, 0x04D4, 0x0564, 0x04E1, 0x10E4, 0x04E2, 0x08E4, 0x0507, 0x1C14,
+    0x050B, 0x1A14, 0x050D, 0x1614, 0x050E, 0x0E14, 0x0513, 0x1914, 0x0515, 0x1514,
+    0x0516, 0x0D14, 0x0519, 0x1314, 0x051A, 0x0B14, 0x051C, 0x0714, 0x0523, 0x1894,
+    0x0525, 0x1494, 0x0526, 0x0C94, 0x0529, 0x1294, 0x052A, 0x0A94, 0x052C, 0x0694,
+    0x0531, 0x1194, 0x0532, 0x0994, 0x0534, 0x0594, 0x0543, 0x1854, 0x0545, 0x1454,
+    0x0546, 0x0C54, 0x0549, 0x1254, 0x054A, 0x0A54, 0x054C, 0x0654, 0x0551, 0x1154,
+    0x0552, 0x0954, 0x0561, 0x10D4, 0x0562, 0x08D4, 0x0583, 0x1834, 0x0585, 0x1434,
+    0x0586, 0x0C34, 0x0589, 0x1234, 0x058A, 0x0A34, 0x058C, 0x0634, 0x0591, 0x1134,
+    0x0592, 0x0934, 0x05A1, 0x10B4, 0x05A2, 0x08B4, 0x05C1, 0x1074, 0x05C2, 0x0874,
+    0x0607, 0x1C0C, 0x060B, 0x1A0C, 0x060D, 0x160C, 0x060E, 0x0E0C, 0x0613, 0x190C,
+    0x0615, 0x150C, 0x0616, 0x0D0C, 0x0619, 0x130C, 0x061A, 0x0B0C, 0x061C, 0x070C,
+    0x0623, 0x188C, 0x0625, 0x148C, 0x0626, 0x0C8C, 0x0629, 0x128C, 0x062A, 0x0A8C,
+    0x062C, 0x068C, 0x0631, 0x118C, 0x0632, 0x098C, 0x0643, 0x184C, 0x0645, 0x144C,
+    0x0646, 0x0C4C, 0x0649, 0x124C, 0x064A, 0x0A4C, 0x0651, 0x114C, 0x0652, 0x094C,
+    0x0661, 0x10CC, 0x0662, 0x08CC, 0x0683, 0x182C, 0x0685, 0x142C, 0x0686, 0x0C2C,
+    0x0689, 0x122C, 0x068A, 0x0A2C, 0x0691, 0x112C, 0x0692, 0x092C, 0x06A1, 0x10AC,
+    0x06A2, 0x08AC, 0x06C1, 0x106C, 0x06C2, 0x086C, 0x0703, 0x181C, 0x0705, 0x141C,
+    0x0706, 0x0C1C, 0x0709, 0x121C, 0x070A, 0x0A1C, 0x0711, 0x111C, 0x0712, 0x091C,
+    0x0721, 0x109C, 0x0722, 0x089C, 0x0741, 0x105C, 0x0742, 0x085C, 0x0781, 0x103C,
+    0x0782, 0x083C, 0x080F, 0x1E02, 0x0817, 0x1D02, 0x081B, 0x1B02, 0x081D, 0x1702,
+    0x081E, 0x0F02, 0x0827, 0x1C82, 0x082B, 0x1A82, 0x082D, 0x1682, 0x082E, 0x0E82,
+    0x0833, 0x1982, 0x0835, 0x1582, 0x0836, 0x0D82, 0x0839, 0x1382, 0x083A, 0x0B82,
+    0x0847, 0x1C42, 0x084B, 0x1A42, 0x084D, 0x1642, 0x084E, 0x0E42, 0x0853, 0x1942,
+    0x0855, 0x1542, 0x0856, 0x0D42, 0x0859, 0x1342, 0x085A, 0x0B42, 0x0863, 0x18C2,
+    0x0865, 0x14C2, 0x0866, 0x0CC2, 0x0869, 0x12C2, 0x086A, 0x0AC2, 0x0871, 0x11C2,
+    0x0872, 0x09C2, 0x0887, 0x1C22, 0x088B, 0x1A22, 0x088D, 0x1622, 0x088E, 0x0E22,
+    0x0893, 0x1922, 0x0895, 0x1522, 0x0896, 0x0D22, 0x0899, 0x1322, 0x089A, 0x0B22,
+    0x08A3, 0x18A2, 0x08A5, 0x14A2, 0x08A6, 0x0CA2, 0x08A9, 0x12A2, 0x08AA, 0x0AA2,
+    0x08B1, 0x11A2, 0x08B2, 0x09A2, 0x08C3, 0x1862, 0x08C5, 0x1462, 0x08C6, 0x0C62,
+    0x08C9, 0x1262, 0x08CA, 0x0A62, 0x08D1, 0x1162, 0x08D2, 0x0962, 0x08E1, 0x10E2,
+    0x0907, 0x1C12, 0x090B, 0x1A12, 0x090D, 0x1612, 0x090E, 0x0E12, 0x0913, 0x1912,
+    0x0915, 0x1512, 0x0916, 0x0D12, 0x0919, 0x1312, 0x091A, 0x0B12, 0x0923, 0x1892,
+    0x0925, 0x1492, 0x0926, 0x0C92, 0x0929, 0x1292, 0x092A, 0x0A92, 0x0931, 0x1192,
+    0x0932, 0x0992, 0x0943, 0x1852, 0x0945, 0x1452, 0x0946, 0x0C52, 0x0949, 0x1252,
+    0x094A, 0x0A52, 0x0951, 0x1152, 0x0961, 0x10D2, 0x0983, 0x1832, 0x0985, 0x1432,
+    0x0986, 0x0C32, 0x0989, 0x1232, 0x098A, 0x0A32, 0x0991, 0x1132, 0x09A1, 0x10B2,
+    0x09C1, 0x1072, 0x0A07, 0x1C0A, 0x0A0B, 0x1A0A, 0x0A0D, 0x160A, 0x0A0E, 0x0E0A,
+    0x0A13, 0x190A, 0x0A15, 0x150A, 0x0A16, 0x0D0A, 0x0A19, 0x130A, 0x0A1A, 0x0B0A,
+    0x0A23, 0x188A, 0x0A25, 0x148A, 0x0A26, 0x0C8A, 0x0A29, 0x128A, 0x0A2A, 0x0A8A,
+    0x0A31, 0x118A, 0x0A43, 0x184A, 0x0A45, 0x144A, 0x0A46, 0x0C4A, 0x0A49, 0x124A,
+    0x0A51, 0x114A, 0x0A61, 0x10CA, 0x0A83, 0x182A, 0x0A85, 0x142A, 0x0A86, 0x0C2A,
+    0x0A89, 0x122A, 0x0A91, 0x112A, 0x0AA1, 0x10AA, 0x0AC1, 0x106A, 0x0B03, 0x181A,
+    0x0B05, 0x141A, 0x0B06, 0x0C1A, 0x0B09, 0x121A, 0x0B11, 0x111A, 0x0B21, 0x109A,
+    0x0B41, 0x105A, 0x0B81, 0x103A, 0x0C07, 0x1C06, 0x0C0B, 0x1A06, 0x0C0D, 0x1606,
+    0x0C0E, 0x0E06, 0x0C13, 0x1906, 0x0C15, 0x1506, 0x0C16, 0x0D06, 0x0C19, 0x1306,
+    0x0C23, 0x1886, 0x0C25, 0x1486, 0x0C26, 0x0C86, 0x0C29, 0x1286, 0x0C31, 0x1186,
+    0x0C43, 0x1846, 0x0C45, 0x1446, 0x0C49, 0x1246, 0x0C51, 0x1146, 0x0C61, 0x10C6,
+    0x0C83, 0x1826, 0x0C85, 0x1426, 0x0C89, 0x1226, 0x0C91, 0x1126, 0x0CA1, 0x10A6,
+    0x0CC1, 0x1066, 0x0D03, 0x1816, 0x0D05, 0x1416, 0x0D09, 0x1216, 0x0D11, 0x1116,
+    0x0D21, 0x1096, 0x0D41, 0x1056, 0x0D81, 0x1036, 0x0E03, 0x180E, 0x0E05, 0x140E,
+    0x0E09, 0x120E, 0x0E11, 0x110E, 0x0E21, 0x108E, 0x0E41, 0x104E, 0x0E81, 0x102E,
+    0x0F01, 0x101E, 0x100F, 0x1E01, 0x1017, 0x1D01, 0x101B, 0x1B01, 0x101D, 0x1701,
+    0x1027, 0x1C81, 0x102B, 0x1A81, 0x102D, 0x1681, 0x1033, 0x1981, 0x1035, 0x1581,
+    0x1039, 0x1381, 0x1047, 0x1C41, 0x104B, 0x1A41, 0x104D, 0x1641, 0x1053, 0x1941,
+    0x1055, 0x1541, 0x1059, 0x1341, 0x1063, 0x18C1, 0x1065, 0x14C1, 0x1069, 0x12C1,
+    0x1071, 0x11C1, 0x1087, 0x1C21, 0x108B, 0x1A21, 0x108D, 0x1621, 0x1093, 0x1921,
+    0x1095, 0x1521, 0x1099, 0x1321, 0x10A3, 0x18A1, 0x10A5, 0x14A1, 0x10A9, 0x12A1,
+    0x10B1, 0x11A1, 0x10C3, 0x1861, 0x10C5, 0x1461, 0x10C9, 0x1261, 0x10D1, 0x1161,
+    0x1107, 0x1C11, 0x110B, 0x1A11, 0x110D, 0x1611, 0x1113, 0x1911, 0x1115, 0x1511,
+    0x1119, 0x1311, 0x1123, 0x1891, 0x1125, 0x1491, 0x1129, 0x1291, 0x1131, 0x1191,
+    0x1143, 0x1851, 0x1145, 0x1451, 0x1149, 0x1251, 0x1183, 0x1831, 0x1185, 0x1431,
+    0x1189, 0x1231, 0x1207, 0x1C09, 0x120B, 0x1A09, 0x120D, 0x1609, 0x1213, 0x1909,
+    0x1215, 0x1509, 0x1219, 0x1309, 0x1223, 0x1889, 0x1225, 0x1489, 0x1229, 0x1289,
+    0x1243, 0x1849, 0x1245, 0x1449, 0x1283, 0x1829, 0x1285, 0x1429, 0x1303, 0x1819,
+    0x1305, 0x1419, 0x1407, 0x1C05, 0x140B, 0x1A05, 0x140D, 0x1605, 0x1413, 0x1905,
+    0x1415, 0x1505, 0x1423, 0x1885, 0x1425, 0x1485, 0x1443, 0x1845, 0x1483, 0x1825,
+    0x1503, 0x1815, 0x1603, 0x180D, 0x1807, 0x1C03, 0x180B, 0x1A03, 0x1813, 0x1903,
+    0x1823, 0x1883, 0x1843, 0x1445, 0x1249, 0x1151, 0x10E1, 0x0C46, 0x0A4A, 0x0952,
+    0x08E2, 0x064C, 0x0554, 0x04E4, 0x0358, 0x02E8, 0x01F0
+};
+
+/* Appendix D Table II - 2 of 13 characters */
+static const unsigned short AppxD_II[78] = {
+    0x0003, 0x1800, 0x0005, 0x1400, 0x0006, 0x0C00, 0x0009, 0x1200, 0x000A, 0x0A00,
+    0x000C, 0x0600, 0x0011, 0x1100, 0x0012, 0x0900, 0x0014, 0x0500, 0x0018, 0x0300,
+    0x0021, 0x1080, 0x0022, 0x0880, 0x0024, 0x0480, 0x0028, 0x0280, 0x0030, 0x0180,
+    0x0041, 0x1040, 0x0042, 0x0840, 0x0044, 0x0440, 0x0048, 0x0240, 0x0050, 0x0140,
+    0x0060, 0x00C0, 0x0081, 0x1020, 0x0082, 0x0820, 0x0084, 0x0420, 0x0088, 0x0220,
+    0x0090, 0x0120, 0x0101, 0x1010, 0x0102, 0x0810, 0x0104, 0x0410, 0x0108, 0x0210,
+    0x0201, 0x1008, 0x0202, 0x0808, 0x0204, 0x0408, 0x0401, 0x1004, 0x0402, 0x0804,
+    0x0801, 0x1002, 0x1001, 0x0802, 0x0404, 0x0208, 0x0110, 0x00A0
+};
+
+/* Appendix D Table IV - Bar-to-Character Mapping (reverse lookup) */
+static const unsigned char AppxD_IV[130] = {
+     67,   6, 78,  16,  86,  95,  34, 40,  45, 113, 117, 121, 62,  87, 18, 104,  41,  76, 57, 119,
+    115,  72, 97,   2, 127,  26, 105, 35, 122,  52, 114,   7, 24,  82, 68,  63,  94,  44, 77, 112,
+     70, 100, 39,  30, 107,  15, 125, 85,  10,  65,  54,  88, 20, 106, 46,  66,   8, 116, 29,  61,
+     99,  80, 90,  37, 123,  51,  25, 84, 129,  56,   4, 109, 96,  28, 36,  47,  11,  71, 33, 102,
+     21,   9, 17,  49, 124,  79,  64, 91,  42,  69,  53,  60, 14,   1, 27, 103, 126,  75, 89,  50,
+    120,  19, 32, 110,  92, 111, 130, 59,  31,  12,  81,  43, 55,   5, 74,  22, 101, 128, 58, 118,
+     48, 108, 38,  98,  93,  23,  83, 13,  73,   3
+};
+
+/***************************************************************************
+ ** USPS_MSB_Math_CRC11GenerateFrameCheckSequence
+ **
+ ** Inputs:
+ **   ByteAttayPtr is the address of a 13 byte array holding 102 bits which
+ **   are right justified - ie: the leftmost 2 bits of the first byte do not
+ **   hold data and must be set to zero.
+ **
+ ** Outputs:
+ **   return unsigned short - 11 bit Frame Check Sequence (right justified)
+ ***************************************************************************/
+static unsigned short USPS_MSB_Math_CRC11GenerateFrameCheckSequence(unsigned char *ByteArrayPtr) {
+    unsigned short GeneratorPolynomial = 0x0F35;
+    unsigned short FrameCheckSequence = 0x07FF;
+    unsigned short Data;
+    int ByteIndex, Bit;
+
+    /* Do most significant byte skipping the 2 most significant bits */
+    Data = *ByteArrayPtr << 5;
+    ByteArrayPtr++;
+    for (Bit = 2; Bit < 8; Bit++) {
+        if ((FrameCheckSequence ^ Data) & 0x400)
+            FrameCheckSequence = (FrameCheckSequence << 1) ^ GeneratorPolynomial;
+        else
+            FrameCheckSequence = (FrameCheckSequence << 1);
+        FrameCheckSequence &= 0x7FF;
+        Data <<= 1;
+    }
+    /* Do rest of the bytes */
+    for (ByteIndex = 1; ByteIndex < 13; ByteIndex++) {
+        Data = *ByteArrayPtr << 3;
+        ByteArrayPtr++;
+        for (Bit = 0; Bit < 8; Bit++) {
+            if ((FrameCheckSequence ^ Data) & 0x0400) {
+                FrameCheckSequence = (FrameCheckSequence << 1) ^ GeneratorPolynomial;
+            } else {
+                FrameCheckSequence = (FrameCheckSequence << 1);
+            }
+            FrameCheckSequence &= 0x7FF;
+            Data <<= 1;
+        }
+    }
+    return FrameCheckSequence;
+}
+
+INTERNAL int daft_set_height(struct zint_symbol *symbol, const float min_height, const float max_height);
+
+INTERNAL int usps_imail(struct zint_symbol *symbol, unsigned char source[], int length) {
+    char data_pattern[200];
+    int error_number = 0;
+    int i, j, read;
+    char tracker[33] = {0}; /* Zero to prevent false warning from clang-tidy */
+    char zip[33], temp[2];
+    large_uint accum;
+    large_uint byte_array_reg;
+    unsigned char byte_array[13];
+    unsigned short usps_crc;
+    unsigned int codeword[10];
+    unsigned short characters[10];
+    short bar_map[130];
+    int zip_len, len;
+
+    if (length > 32) {
+        return errtxtf(ZINT_ERROR_TOO_LONG, symbol, 450, "Input length %d too long (maximum 32)", length);
+    }
+    if ((i = not_sane(SODIUM_MNS_F, source, length))) {
+        return errtxtf(ZINT_ERROR_INVALID_DATA, symbol, 451,
+                        "Invalid character at position %d in input (digits and \"-\" only)", i);
+    }
+
+    /* separate the tracking code from the routing code */
+
+    zip[0] = '\0';
+    read = 0;
+    j = 0;
+    for (i = 0; i < length; i++) {
+        if (source[i] == '-') {
+            tracker[read] = '\0';
+            j = 1;
+            read = 0;
+        } else {
+            if (j == 0) {
+                /* reading tracker */
+                tracker[read] = source[i];
+                read++;
+            } else {
+                /* reading zip code */
+                zip[read] = source[i];
+                read++;
+            }
+        }
+    }
+    if (j == 0) {
+        tracker[read] = '\0';
+    } else {
+        zip[read] = '\0';
+    }
+
+    if (strlen(tracker) != 20) {
+        return errtxt(ZINT_ERROR_INVALID_DATA, symbol, 452,
+                        "Invalid length for tracking code (20 characters required)");
+    }
+    if (tracker[1] > '4') {
+        return errtxt(ZINT_ERROR_INVALID_DATA, symbol, 454,
+                        "Barcode Identifier (second character) out of range (0 to 4)");
+    }
+
+    zip_len = (int) strlen(zip);
+    if (zip_len != 0 && zip_len != 5 && zip_len != 9 && zip_len != 11) {
+        return errtxt(ZINT_ERROR_INVALID_DATA, symbol, 453,
+                        "Invalid length for ZIP code (5, 9 or 11 characters required)");
+    }
+
+    /* *** Step 1 - Conversion of Data Fields into Binary Data *** */
+
+    /* Routing code first */
+
+    large_load_str_u64(&accum, (unsigned char *) zip, zip_len);
+
+    /* add weight to routing code */
+    if (zip_len > 9) {
+        large_add_u64(&accum, 1000100001);
+    } else if (zip_len > 5) {
+        large_add_u64(&accum, 100001);
+    } else if (zip_len > 0) {
+        large_add_u64(&accum, 1);
+    }
+
+    /* tracking code */
+
+    /* multiply by 10 */
+    large_mul_u64(&accum, 10);
+
+    /* add first digit of tracker */
+    large_add_u64(&accum, ctoi(tracker[0]));
+
+    /* multiply by 5 */
+    large_mul_u64(&accum, 5);
+
+    /* add second digit */
+    large_add_u64(&accum, ctoi(tracker[1]));
+
+    /* and then the rest */
+
+    for (read = 2; read < 20; read++) {
+
+        large_mul_u64(&accum, 10);
+        large_add_u64(&accum, ctoi(tracker[read]));
+    }
+
+    /* *** Step 2 - Generation of 11-bit CRC on Binary Data *** */
+
+    large_load(&byte_array_reg, &accum);
+
+    large_unset_bit(&byte_array_reg, 102);
+    large_unset_bit(&byte_array_reg, 103);
+
+    large_uchar_array(&byte_array_reg, byte_array, 13, 8 /*bits*/);
+
+    usps_crc = USPS_MSB_Math_CRC11GenerateFrameCheckSequence(byte_array);
+
+    /* *** Step 3 - Conversion from Binary Data to Codewords *** */
+
+    /* start with codeword J which is base 636 */
+    codeword[9] = (unsigned int) large_div_u64(&accum, 636);
+
+    /* then codewords I to B with base 1365 */
+
+    for (j = 8; j > 0; j--) {
+        codeword[j] = (unsigned int) large_div_u64(&accum, 1365);
+    }
+
+    codeword[0] = (unsigned int) large_lo(&accum);
+
+    /* *** Step 4 - Inserting Additional Information into Codewords *** */
+
+    codeword[9] = codeword[9] * 2;
+
+    if (usps_crc >= 1024) {
+        codeword[0] += 659;
+    }
+
+    /* *** Step 5 - Conversion from Codewords to Characters *** */
+
+    for (i = 0; i < 10; i++) {
+        if (codeword[i] < 1287) {
+            characters[i] = AppxD_I[codeword[i]];
+        } else {
+            characters[i] = AppxD_II[codeword[i] - 1287];
+        }
+    }
+
+    for (i = 0; i < 10; i++) {
+        if (usps_crc & (1 << i)) {
+            characters[i] = 0x1FFF - characters[i];
+        }
+    }
+
+    /* *** Step 6 - Conversion from Characters to the Intelligent Mail Barcode *** */
+    for (i = 0; i < 10; i++) {
+        for (j = 0; j < 13; j++) {
+            if (characters[i] & (1 << j)) {
+                bar_map[AppxD_IV[(13 * i) + j] - 1] = 1;
+            } else {
+                bar_map[AppxD_IV[(13 * i) + j] - 1] = 0;
+            }
+        }
+    }
+
+    data_pattern[0] = '\0';
+    temp[1] = '\0';
+    for (i = 0; i < 65; i++) {
+        j = 0;
+        if (bar_map[i] == 0)
+            j += 1;
+        if (bar_map[i + 65] == 0)
+            j += 2;
+        temp[0] = itoc(j);
+        strcat(data_pattern, temp);
+    }
+
+    /* Translate 4-state data pattern to symbol */
+    read = 0;
+    for (i = 0, len = (int) strlen(data_pattern); i < len; i++) {
+        if ((data_pattern[i] == '1') || (data_pattern[i] == '0')) {
+            set_module(symbol, 0, read);
+        }
+        set_module(symbol, 1, read);
+        if ((data_pattern[i] == '2') || (data_pattern[i] == '0')) {
+            set_module(symbol, 2, read);
+        }
+        read += 2;
+    }
+
+    if (symbol->output_options & COMPLIANT_HEIGHT) {
+        /* USPS-B-3200 Section 2.3.1
+           Using bar pitch as X (1" / 43) ~ 0.023" based on 22 bars + 21 spaces per inch (bar width 0.015" - 0.025"),
+           height 0.125" - 0.165"
+           Tracker 0.048" (average of 0.039" - 0.057")
+           Ascender/descender 0.0965" (average of 0.082" - 0.111") less T = 0.0485"
+         */
+        const float min_height = 4.875f; /* 0.125 * 39 */
+        const float max_height = 7.75500011f; /* 0.165 * 47 */
+        symbol->row_height[0] = 2.0855f; /* 0.0485 * 43 */
+        symbol->row_height[1] = 2.06399989f; /* 0.048 * 43 */
+        /* Note using max X for minimum and min X for maximum */
+        error_number = daft_set_height(symbol, min_height, max_height);
+    } else {
+        symbol->row_height[0] = 3.0f;
+        symbol->row_height[1] = 2.0f;
+        (void) daft_set_height(symbol, 0.0f, 0.0f);
+    }
+    symbol->rows = 3;
+    symbol->width = read - 1;
+    return error_number;
+}
+
+/* vim: set ts=4 sw=4 et : */