diff --git a/ChangeLog b/ChangeLog
index 474a811d..282910e2 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -119,8 +119,14 @@ Bugs
   byte-blocks > 11-bit limit
 - library: fix 21-bit Unicode conversion in `escape_char_process()`; fix
   restricting escaped data length by using de-escaped length to check
-- CODEONE: fix out-of-bounds crash in `c1_c40text_cnt()`, ticket #300, props
-  Andre Maute
+- CODEONE: fix out-of-bounds crash in `c1_c40text_cnt()` and looping on latch
+  crash in `c1_encode()`, ticket #300, props Andre Maute
+- CODABLOCKF: fix crash due to `columns` overflow, ticket #300, props Andre
+  Maute
+- EANX_CC/UPCA_CC: fix crash in `dbar_date()` on not checking length, ticket
+  #300, props Andre Maute
+- PDF417: fix out-of-bounds crash on overrunning string and codeword buffers,
+  ticket #300, props Andre Maute
 
 
 Version 2.12.0 (2022-12-12)
diff --git a/backend/codablock.c b/backend/codablock.c
index f71c8b6c..b1004983 100644
--- a/backend/codablock.c
+++ b/backend/codablock.c
@@ -586,6 +586,9 @@ INTERNAL int codablockf(struct zint_symbol *symbol, unsigned char source[], int
         strcpy(symbol->errtxt, "411: Columns parameter not in 0, 9..67");
         return ZINT_ERROR_INVALID_OPTION;
     }
+    if (columns < 0) { /* Protect against negative overflow (ticket #300 (#9) Andre Maute) */
+        columns = 0;
+    }
 
     data = (unsigned char *) z_alloca(length * 2 + 1);
 
diff --git a/backend/code1.c b/backend/code1.c
index 128974a5..27f3d4dd 100644
--- a/backend/code1.c
+++ b/backend/code1.c
@@ -37,6 +37,13 @@
 #include "reedsol.h"
 #include "large.h"
 
+#define C1_ASCII    1
+#define C1_C40      2
+#define C1_DECIMAL  3
+#define C1_TEXT     4
+#define C1_EDI      5
+#define C1_BYTE     6
+
 /* Add solid bar */
 static void c1_horiz(struct zint_symbol *symbol, const int row_no, const int full) {
     int i;
@@ -477,7 +484,7 @@ static void c1_eci_escape(const int eci, unsigned char source[], const int lengt
 /* Convert to codewords */
 static int c1_encode(struct zint_symbol *symbol, unsigned char source[], int length, const int eci,
             const int seg_count, const int gs1, unsigned int target[], int *p_tp, int *p_last_mode) {
-    int current_mode, next_mode;
+    int current_mode, next_mode, last_mode;
     int sp = 0;
     int tp = *p_tp;
     int i;
@@ -563,6 +570,7 @@ static int c1_encode(struct zint_symbol *symbol, unsigned char source[], int len
     }
 
     do {
+        last_mode = current_mode;
         if (current_mode != next_mode) {
             /* Change mode */
             switch (next_mode) {
@@ -625,6 +633,9 @@ static int c1_encode(struct zint_symbol *symbol, unsigned char source[], int len
 
                         /* Step B6 */
                         next_mode = c1_look_ahead_test(source, length, sp, current_mode, gs1);
+                        if (next_mode == last_mode) { /* Avoid looping on latch (ticket #300 (#8) Andre Maute) */
+                            next_mode = C1_ASCII;
+                        }
 
                         if (next_mode == C1_ASCII) {
                             if (debug_print) printf("ASC(%d) ", source[sp]);
diff --git a/backend/code1.h b/backend/code1.h
index 5f9ad231..70c50635 100644
--- a/backend/code1.h
+++ b/backend/code1.h
@@ -1,7 +1,7 @@
 /* code1.h - Lookup info for USS Code One */
 /*
     libzint - the open source barcode library
-    Copyright (C) 2009-2022 Robin Stuart <rstuart114@gmail.com>
+    Copyright (C) 2009-2023 Robin Stuart <rstuart114@gmail.com>
 
     Redistribution and use in source and binary forms, with or without
     modification, are permitted provided that the following conditions
@@ -97,12 +97,5 @@ static const unsigned short c1_grid_height[] = {
     5, 7, 10, 15, 21, 30, 46, 68
 };
 
-#define C1_ASCII    1
-#define C1_C40      2
-#define C1_DECIMAL  3
-#define C1_TEXT     4
-#define C1_EDI      5
-#define C1_BYTE     6
-
 /* vim: set ts=4 sw=4 et : */
 #endif /* Z_CODE1_H */
diff --git a/backend/common.c b/backend/common.c
index 9a8fee60..ee8dbcde 100644
--- a/backend/common.c
+++ b/backend/common.c
@@ -607,6 +607,24 @@ INTERNAL void debug_test_codeword_dump(struct zint_symbol *symbol, const unsigne
     symbol->errtxt[strlen(symbol->errtxt) - 1] = '\0'; /* Zap last space */
 }
 
+/* Dumps decimal-formatted codewords in symbol->errtxt (for use in testing) */
+INTERNAL void debug_test_codeword_dump_short(struct zint_symbol *symbol, const short *codewords, const int length) {
+    int i, max = 0, cnt_len, errtxt_len;
+    char temp[20];
+    errtxt_len = sprintf(symbol->errtxt, "(%d) ", length); /* Place the number of codewords at the front */
+    for (i = 0, cnt_len = errtxt_len; i < length; i++) {
+        cnt_len += sprintf(temp, "%d ", codewords[i]);
+        if (cnt_len > 92) {
+            break;
+        }
+        max++;
+    }
+    for (i = 0; i < max; i++) {
+        errtxt_len += sprintf(symbol->errtxt + errtxt_len, "%d ", codewords[i]);
+    }
+    symbol->errtxt[strlen(symbol->errtxt) - 1] = '\0'; /* Zap last space */
+}
+
 /* Dumps decimal-formatted codewords in symbol->errtxt (for use in testing) */
 INTERNAL void debug_test_codeword_dump_int(struct zint_symbol *symbol, const int *codewords, const int length) {
     int i, max = 0, cnt_len, errtxt_len;
diff --git a/backend/common.h b/backend/common.h
index 12043c4f..e37bf1c5 100644
--- a/backend/common.h
+++ b/backend/common.h
@@ -276,6 +276,8 @@ INTERNAL void segs_cpy(const struct zint_symbol *symbol, const struct zint_seg s
 /* Dumps hex-formatted codewords in symbol->errtxt (for use in testing) */
 INTERNAL void debug_test_codeword_dump(struct zint_symbol *symbol, const unsigned char *codewords, const int length);
 /* Dumps decimal-formatted codewords in symbol->errtxt (for use in testing) */
+INTERNAL void debug_test_codeword_dump_short(struct zint_symbol *symbol, const short *codewords, const int length);
+/* Dumps decimal-formatted codewords in symbol->errtxt (for use in testing) */
 INTERNAL void debug_test_codeword_dump_int(struct zint_symbol *symbol, const int *codewords, const int length);
 #endif
 
diff --git a/backend/composite.c b/backend/composite.c
index 2646ac59..7d39b0f3 100644
--- a/backend/composite.c
+++ b/backend/composite.c
@@ -71,7 +71,7 @@ INTERNAL int dbar_omnstk_set_height(struct zint_symbol *symbol, const int first_
 INTERNAL int dbar_omn_cc(struct zint_symbol *symbol, unsigned char source[], int length, const int cc_rows);
 INTERNAL int dbar_ltd_cc(struct zint_symbol *symbol, unsigned char source[], int length, const int cc_rows);
 INTERNAL int dbar_exp_cc(struct zint_symbol *symbol, unsigned char source[], int length, const int cc_rows);
-INTERNAL int dbar_date(const unsigned char source[], const int src_posn);
+INTERNAL int dbar_date(const unsigned char source[], const int length, const int src_posn);
 
 static int _min(const int first, const int second) {
 
@@ -301,7 +301,8 @@ static void cc_b(struct zint_symbol *symbol, const char source[], const int cc_w
     const int length = (int) strlen(source) / 8;
     int i;
     unsigned char *data_string = (unsigned char *) z_alloca(length + 3);
-    int chainemc[180], mclength = 0;
+    short chainemc[180];
+    int mclength = 0;
     int k, j, p, longueur, mccorrection[50] = {0}, offset;
     int total;
     char pattern[580];
@@ -517,7 +518,8 @@ static void cc_c(struct zint_symbol *symbol, const char source[], const int cc_w
     const int length = (int) strlen(source) / 8;
     int i, p;
     unsigned char *data_string = (unsigned char *) z_alloca(length + 4);
-    int chainemc[1000], mclength = 0, k;
+    short chainemc[1000];
+    int mclength = 0, k;
     int offset, longueur, loop, total, j, mccorrection[520] = {0};
     int c1, c2, c3, dummy[35];
     char pattern[580];
@@ -843,14 +845,14 @@ static int calc_padding_ccc(const int binary_length, int *cc_width, const int li
 }
 
 /* Handles all data encodation from section 5 of ISO/IEC 24723 */
-static int cc_binary_string(struct zint_symbol *symbol, const unsigned char source[], const int source_len,
+static int cc_binary_string(struct zint_symbol *symbol, const unsigned char source[], const int length,
             char binary_string[], const int cc_mode, int *cc_width, int *ecc, const int linear_width) {
     int encoding_method, read_posn, alpha_pad;
     int i, j, ai_crop, ai_crop_posn, fnc1_latch;
     int ai90_mode, remainder;
     char last_digit = '\0';
     int mode;
-    char *general_field = (char *) z_alloca(source_len + 1);
+    char *general_field = (char *) z_alloca(length + 1);
     int target_bitsize;
     int bp = 0;
     const int debug_print = symbol->debug & ZINT_DEBUG_PRINT;
@@ -865,12 +867,12 @@ static int cc_binary_string(struct zint_symbol *symbol, const unsigned char sour
     target_bitsize = 0;
     mode = NUMERIC;
 
-    if ((source[0] == '1') && ((source[1] == '0') || (source[1] == '1') || (source[1] == '7'))) {
+    if (length > 1 && (source[0] == '1') && ((source[1] == '0') || (source[1] == '1') || (source[1] == '7'))) {
         /* Source starts (10), (11) or (17) */
-        if (source[1] == '0' || dbar_date(source, 2) >= 0) { /* Check date valid if (11) or (17) */
+        if (source[1] == '0' || dbar_date(source, length, 2) >= 0) { /* Check date valid if (11) or (17) */
             encoding_method = 2;
         }
-    } else if ((source[0] == '9') && (source[1] == '0')) {
+    } else if (length > 1 && (source[0] == '9') && (source[1] == '0')) {
         /* Source starts (90) */
         encoding_method = 3;
     }
@@ -890,8 +892,9 @@ static int cc_binary_string(struct zint_symbol *symbol, const unsigned char sour
             read_posn = 2;
         } else {
             /* Production Date (11) or Expiration Date (17) */
+            assert(length >= 8); /* Due to `dbar_date()` check above */
 
-            bp = bin_append_posn(dbar_date(source, 2), 16, binary_string, bp);
+            bp = bin_append_posn(dbar_date(source, length, 2), 16, binary_string, bp);
 
             if (source[1] == '1') {
                 /* Production Date AI 11 */
@@ -902,7 +905,7 @@ static int cc_binary_string(struct zint_symbol *symbol, const unsigned char sour
             }
             read_posn = 8;
 
-            if ((source[read_posn] == '1') && (source[read_posn + 1] == '0')) {
+            if (read_posn + 1 < length && (source[read_posn] == '1') && (source[read_posn + 1] == '0')) {
                 /* Followed by AI 10 - strip this from general field */
                 read_posn += 2;
             } else if (source[read_posn]) {
@@ -925,20 +928,21 @@ static int cc_binary_string(struct zint_symbol *symbol, const unsigned char sour
 
     } else if (encoding_method == 3) {
         /* Encodation Method field of "11" - AI 90 */
-        char *ninety = (char *) z_alloca(source_len + 1);
-        int ninety_len, alpha, alphanum, numeric, test1, test2, test3;
+        unsigned char *ninety = (unsigned char *) z_alloca(length + 1);
+        int ninety_len, alpha, alphanum, numeric, alpha_posn;
 
         /* "This encodation method may be used if an element string with an AI
         90 occurs at the start of the data message, and if the data field
         following the two-digit AI 90 starts with an alphanumeric string which
         complies with a specific format." (para 5.3.2) */
 
-        memset(ninety, 0, source_len + 1);
         i = 0;
-        do {
-            ninety[i] = source[i + 2];
-            i++;
-        } while ((source_len > i + 2) && ('[' != source[i + 2]));
+        if (length > 2) {
+            do {
+                ninety[i] = source[i + 2];
+                i++;
+            } while ((length > i + 2) && ('[' != source[i + 2]));
+        }
         ninety[i] = '\0';
         ninety_len = i;
 
@@ -962,36 +966,27 @@ static int cc_binary_string(struct zint_symbol *symbol, const unsigned char sour
         }
 
         /* must start with 0, 1, 2 or 3 digits followed by an uppercase character */
-        test1 = -1;
-        for (i = 3; i >= 0; i--) {
-            if (z_isupper(ninety[i])) {
-                test1 = i;
+        alpha_posn = -1;
+        if (ninety_len && ninety[0] != '0') { /* Leading zeros are not permitted */
+            for (i = 0; i < ninety_len && i < 4; i++) {
+                if (z_isupper(ninety[i])) {
+                    alpha_posn = i;
+                    break;
+                }
+                if (!z_isdigit(ninety[i])) {
+                    break;
+                }
             }
         }
 
-        test2 = 0;
-        for (i = 0; i < test1; i++) {
-            if (!z_isdigit(ninety[i])) {
-                test2 = 1;
-                break;
-            }
-        }
-
-        /* leading zeros are not permitted */
-        test3 = 0;
-        if ((test1 >= 1) && (ninety[0] == '0')) {
-            test3 = 1;
-        }
-
-        if ((test1 != -1) && (test2 != 1) && (test3 == 0)) {
+        if (alpha_posn != -1) {
             int next_ai_posn;
-            char numeric_part[4];
             int numeric_value;
             int table3_letter;
             /* Encodation method "11" can be used */
             bp = bin_append_posn(3, 2, binary_string, bp); /* "11" */
 
-            numeric -= test1;
+            numeric -= alpha_posn;
             alpha--;
 
             /* Decide on numeric, alpha or alphanumeric mode */
@@ -1016,13 +1011,13 @@ static int cc_binary_string(struct zint_symbol *symbol, const unsigned char sour
 
             next_ai_posn = 2 + ninety_len;
 
-            if (next_ai_posn < source_len && source[next_ai_posn] == '[') {
+            if (next_ai_posn < length && source[next_ai_posn] == '[') {
                 /* There are more AIs afterwards */
-                if (next_ai_posn + 2 < source_len
+                if (next_ai_posn + 2 < length
                         && (source[next_ai_posn + 1] == '2') && (source[next_ai_posn + 2] == '1')) {
                     /* AI 21 follows */
                     ai_crop = 1;
-                } else if (next_ai_posn + 4 < source_len
+                } else if (next_ai_posn + 4 < length
                         && (source[next_ai_posn + 1] == '8') && (source[next_ai_posn + 2] == '0')
                         && (source[next_ai_posn + 3] == '0') && (source[next_ai_posn + 4] == '4')) {
                     /* AI 8004 follows */
@@ -1041,20 +1036,11 @@ static int cc_binary_string(struct zint_symbol *symbol, const unsigned char sour
                     break;
             }
 
-            if (test1 == 0) {
-                strcpy(numeric_part, "0");
-            } else {
-                for (i = 0; i < test1; i++) {
-                    numeric_part[i] = ninety[i];
-                }
-                numeric_part[i] = '\0';
-            }
-
-            numeric_value = atoi(numeric_part);
+            numeric_value = alpha_posn ? to_int(ninety, alpha_posn) : 0;
 
             table3_letter = -1;
             if (numeric_value < 31) {
-                table3_letter = posn("BDHIJKLNPQRSTVWZ", ninety[test1]);
+                table3_letter = posn("BDHIJKLNPQRSTVWZ", ninety[alpha_posn]);
             }
 
             if (table3_letter != -1) {
@@ -1071,10 +1057,10 @@ static int cc_binary_string(struct zint_symbol *symbol, const unsigned char sour
                 bp = bin_append_posn(numeric_value, 10, binary_string, bp);
 
                 /* five bit representation of ASCII character */
-                bp = bin_append_posn(ninety[test1] - 65, 5, binary_string, bp);
+                bp = bin_append_posn(ninety[alpha_posn] - 65, 5, binary_string, bp);
             }
 
-            read_posn = test1 + 3;
+            read_posn = alpha_posn + 3; /* +2 for 90 and +1 to go beyond alpha position */
 
             /* Do Alpha mode encoding of the rest of the AI 90 data field here */
             if (ai90_mode == 2) {
@@ -1118,7 +1104,7 @@ static int cc_binary_string(struct zint_symbol *symbol, const unsigned char sour
         j++;
     }
 
-    for (i = read_posn; i < source_len; i++) {
+    for (i = read_posn; i < length; i++) {
         /* Skip "[21" or "[8004" AIs if encodation method "11" used */
         if (i == ai_crop_posn) {
             i += ai_crop;
diff --git a/backend/library.c b/backend/library.c
index 15eef0b7..a7ff0d02 100644
--- a/backend/library.c
+++ b/backend/library.c
@@ -677,6 +677,20 @@ static int reduced_charset(struct zint_symbol *symbol, struct zint_seg segs[], c
     return error_number;
 }
 
+/* Helper for ZINT_DEBUG_PRINT to put all but graphical ASCII in angle brackets */
+static void debug_print_escape(const unsigned char *source, const int first_len, char *buf) {
+    int i, j = 0;
+    for (i = 0; i < first_len; i++) {
+        const unsigned char ch = source[i];
+        if (ch < 32 || ch >= 127) {
+            j += sprintf(buf + j, "<%03o>", ch & 0xFF);
+        } else {
+            buf[j++] = ch;
+        }
+    }
+    buf[j] = '\0';
+}
+
 #if defined(__GNUC__) || defined(__clang__)
 #pragma GCC diagnostic pop
 #endif
@@ -1005,14 +1019,18 @@ int ZBarcode_Encode_Segs(struct zint_symbol *symbol, const struct zint_seg segs[
         const int len = local_segs[0].length;
         const int primary_len = symbol->primary[0] ? (int) strlen(symbol->primary) : 0;
         char name[32];
+        char source[151], primary[151]; /* 30*5 + 1 = 151 */
         (void) ZBarcode_BarcodeName(symbol->symbology, name);
-        printf("\nZBarcode_Encode_Segs: %s (%d), input_mode: 0x%X, ECI: %d, option_1: %d, option_2: %d"
-                ", option_3: %d,\n                      scale: %g, output_options: 0x%X, fg: %s, bg: %s"
-                ", seg_count: %d,\n                      %ssource%s (%d): \"%.*s\", %sprimary (%d): \"%.20s\"\n",
+        debug_print_escape(local_segs[0].source, len > 30 ? 30 : len, source);
+        debug_print_escape((const unsigned char *) symbol->primary, primary_len > 30 ? 30 : primary_len, primary);
+        printf("\nZBarcode_Encode_Segs: %s (%d), input_mode: 0x%X, ECI: %d, option_1/2/3: (%d, %d, %d)\n"
+                "                      scale: %g, output_options: 0x%X, fg: %s, bg: %s, seg_count: %d,\n"
+                "                      %ssource%s (%d): \"%s\",\n"
+                "                      %sprimary (%d): \"%s\"\n",
                 name, symbol->symbology, symbol->input_mode, symbol->eci, symbol->option_1, symbol->option_2,
                 symbol->option_3, symbol->scale, symbol->output_options, symbol->fgcolour, symbol->bgcolour,
-                seg_count, len > 20 ? "First 20 " : "", seg_count > 1 ? "[0]" : "", len, len > 20 ? 20 : len,
-                local_segs[0].source, primary_len > 20 ? "First 20 " : "", primary_len, symbol->primary);
+                seg_count, len > 30 ? "first 30 " : "", seg_count > 1 ? "[0]" : "", len, source,
+                primary_len > 30 ? "first 30 " : "", primary_len, primary);
     }
 
     if (total_len > ZINT_MAX_DATA_LEN) {
diff --git a/backend/pdf417.c b/backend/pdf417.c
index 76716459..ce8f4f9a 100644
--- a/backend/pdf417.c
+++ b/backend/pdf417.c
@@ -146,6 +146,7 @@ static const char pdf_MicroAutosize[56] = {
 /* ISO/IEC 15438:2015 5.1.1 c) 3) Max possible number of characters at error correction level 0
    (Numeric Compaction mode) */
 #define PDF_MAX_LEN         2710
+#define PDF_MAX_STREAM_LEN  (PDF_MAX_LEN * 3) /* Allow for tripling up due to shifts/latches (ticket #300 (#7)) */
 
 /* ISO/IEC 24728:2006 5.1.1 c) 3) Max possible number of characters (Numeric Compaction mode) */
 #define MICRO_PDF_MAX_LEN   366
@@ -165,7 +166,7 @@ static int pdf_quelmode(const unsigned char codeascii) {
 }
 
 /* Helper to switch TEX mode sub-mode */
-static int pdf_textprocess_switch(const int curtable, const int newtable, int chainet[PDF_MAX_LEN], int wnet) {
+static int pdf_textprocess_switch(const int curtable, const int newtable, unsigned char chainet[PDF_MAX_STREAM_LEN], int wnet) {
     switch (curtable) {
         case T_ALPHA:
             switch (newtable) {
@@ -234,7 +235,8 @@ static int pdf_text_num_length(int liste[3][PDF_MAX_LEN], const int indexliste,
 
 /* Calculate length of TEX allowing for sub-mode switches (no-output version of `pdf_textprocess()`) */
 static int pdf_text_submode_length(const unsigned char chaine[], const int start, const int length, int *p_curtable) {
-    int j, indexlistet, curtable = *p_curtable, listet[PDF_MAX_LEN], chainet[PDF_MAX_LEN], wnet = 0;
+    int j, indexlistet, curtable = *p_curtable, listet[PDF_MAX_LEN], wnet = 0;
+    unsigned char chainet[PDF_MAX_STREAM_LEN];
 
     for (indexlistet = 0; indexlistet < length; indexlistet++) {
         assert(pdf_asciix[chaine[start + indexlistet]]); /* Should only be dealing with TEX */
@@ -397,8 +399,8 @@ static void pdf_appendix_d_encode(const unsigned char *chaine, int liste[3][PDF_
 }
 
 /* Helper to pad TEX mode, allowing for whether last segment or not, writing out `chainet` */
-static void pdf_textprocess_end(int *chainemc, int *p_mclength, const int is_last_seg, int chainet[PDF_MAX_LEN],
-            int wnet, int *p_curtable, int *p_tex_padded) {
+static void pdf_textprocess_end(short *chainemc, int *p_mclength, const int is_last_seg,
+            unsigned char chainet[PDF_MAX_STREAM_LEN], int wnet, int *p_curtable, int *p_tex_padded) {
     int i;
 
     *p_tex_padded = wnet & 1;
@@ -422,12 +424,13 @@ static void pdf_textprocess_end(int *chainemc, int *p_mclength, const int is_las
 
 /* 547 */
 /* Text compaction */
-static void pdf_textprocess(int *chainemc, int *p_mclength, const unsigned char chaine[], const int start,
+static void pdf_textprocess(short *chainemc, int *p_mclength, const unsigned char chaine[], const int start,
             const int length, const int lastmode, const int is_last_seg, int *p_curtable, int *p_tex_padded) {
     const int real_lastmode = PDF_REAL_MODE(lastmode);
     int j, indexlistet;
     int curtable = real_lastmode == PDF_TEX ? *p_curtable : T_ALPHA; /* Set default table upper alpha */
-    int listet[2][PDF_MAX_LEN] = {{0}}, chainet[PDF_MAX_LEN];
+    int listet[2][PDF_MAX_LEN] = {{0}};
+    unsigned char chainet[PDF_MAX_STREAM_LEN];
     int wnet = 0;
 
     /* add mode indicator if needed */
@@ -492,13 +495,13 @@ static void pdf_textprocess(int *chainemc, int *p_mclength, const unsigned char
 }
 
 /* Minimal text compaction */
-static void pdf_textprocess_minimal(int *chainemc, int *p_mclength, const unsigned char chaine[],
+static void pdf_textprocess_minimal(short *chainemc, int *p_mclength, const unsigned char chaine[],
             int liste[3][PDF_MAX_LEN], const int indexliste, const int lastmode, const int is_last_seg,
             int *p_curtable, int *p_tex_padded, int *p_i) {
     const int real_lastmode = PDF_REAL_MODE(lastmode);
     int i, j, k;
     int curtable = real_lastmode == PDF_TEX ? *p_curtable : T_ALPHA; /* Set default table upper alpha */
-    int chainet[PDF_MAX_LEN];
+    unsigned char chainet[PDF_MAX_STREAM_LEN];
     int wnet = 0;
 
     /* add mode indicator if needed */
@@ -550,7 +553,7 @@ static void pdf_textprocess_minimal(int *chainemc, int *p_mclength, const unsign
 
 /* 671 */
 /* Byte compaction */
-INTERNAL void pdf_byteprocess(int *chainemc, int *p_mclength, const unsigned char chaine[], int start,
+INTERNAL void pdf_byteprocess(short *chainemc, int *p_mclength, const unsigned char chaine[], int start,
                 const int length, const int lastmode, const int debug_print) {
     const int real_lastmode = PDF_REAL_MODE(lastmode);
 
@@ -611,7 +614,7 @@ INTERNAL void pdf_byteprocess(int *chainemc, int *p_mclength, const unsigned cha
 
 /* 712 */
 /* Numeric compaction */
-static void pdf_numbprocess(int *chainemc, int *p_mclength, const unsigned char chaine[], const int start,
+static void pdf_numbprocess(short *chainemc, int *p_mclength, const unsigned char chaine[], const int start,
             const int length) {
     int j;
 
@@ -660,7 +663,7 @@ static void pdf_numbprocess(int *chainemc, int *p_mclength, const unsigned char
 }
 
 #ifdef ZINT_TEST /* Wrapper for direct testing */
-INTERNAL void pdf_numbprocess_test(int *chainemc, int *p_mclength, const unsigned char chaine[], const int start,
+INTERNAL void pdf_numbprocess_test(short *chainemc, int *p_mclength, const unsigned char chaine[], const int start,
                 const int length) {
     pdf_numbprocess(chainemc, p_mclength, chaine, start, length);
 }
@@ -995,7 +998,7 @@ static int pdf_define_mode(int liste[3][PDF_MAX_LEN], int *p_indexliste, const u
 /* Initial processing of data, shared by `pdf417()` and `micropdf417()` */
 static int pdf_initial(struct zint_symbol *symbol, const unsigned char chaine[], const int length, const int eci,
             const int is_micro, const int is_last_seg, int *p_lastmode, int *p_curtable, int *p_tex_padded,
-            int chainemc[PDF_MAX_LEN], int *p_mclength) {
+            short chainemc[PDF_MAX_STREAM_LEN], int *p_mclength) {
     int i, indexchaine = 0, indexliste = 0;
     int liste[3][PDF_MAX_LEN] = {{0}};
     int mclength;
@@ -1114,7 +1117,7 @@ static int pdf_initial(struct zint_symbol *symbol, const unsigned char chaine[],
 
 /* Call `pdf_initial()` for each segment, dealing with Structured Append beforehand */
 static int pdf_initial_segs(struct zint_symbol *symbol, struct zint_seg segs[], const int seg_count,
-            const int is_micro, int chainemc[PDF_MAX_LEN], int *p_mclength, int structapp_cws[18],
+            const int is_micro, short chainemc[PDF_MAX_STREAM_LEN], int *p_mclength, int structapp_cws[18],
             int *p_structapp_cp) {
     int i;
     int error_number = 0;
@@ -1197,7 +1200,8 @@ static int pdf_initial_segs(struct zint_symbol *symbol, struct zint_seg segs[],
 /* Encode PDF417 */
 static int pdf_enc(struct zint_symbol *symbol, struct zint_seg segs[], const int seg_count) {
     int i, j, longueur, loop, mccorrection[520] = {0}, offset;
-    int total, chainemc[PDF_MAX_LEN], mclength, c1, c2, c3, dummy[35];
+    int total, mclength, c1, c2, c3, dummy[35];
+    short chainemc[PDF_MAX_STREAM_LEN];
     int rows, cols, ecc, ecc_cws, padding;
     char pattern[580];
     int bp = 0;
@@ -1376,7 +1380,7 @@ static int pdf_enc(struct zint_symbol *symbol, struct zint_seg segs[], const int
     }
 #ifdef ZINT_TEST
     if (symbol->debug & ZINT_DEBUG_TEST) {
-        debug_test_codeword_dump_int(symbol, chainemc, mclength);
+        debug_test_codeword_dump_short(symbol, chainemc, mclength);
     }
 #endif
 
@@ -1492,7 +1496,8 @@ INTERNAL int pdf417(struct zint_symbol *symbol, struct zint_seg segs[], const in
 /* like PDF417 only much smaller! */
 INTERNAL int micropdf417(struct zint_symbol *symbol, struct zint_seg segs[], const int seg_count) {
     int i, k, j, longueur, mccorrection[50] = {0}, offset;
-    int total, chainemc[PDF_MAX_LEN], mclength, error_number = 0;
+    int total, mclength, error_number = 0;
+    short chainemc[PDF_MAX_STREAM_LEN];
     char pattern[580];
     int bp = 0;
     int structapp_cws[18] = {0}; /* 3 (Index) + 10 (ID) + 4 (Count) + 1 (Last) */
@@ -1729,7 +1734,7 @@ INTERNAL int micropdf417(struct zint_symbol *symbol, struct zint_seg segs[], con
     }
 #ifdef ZINT_TEST
     if (symbol->debug & ZINT_DEBUG_TEST) {
-        debug_test_codeword_dump_int(symbol, chainemc, mclength);
+        debug_test_codeword_dump_short(symbol, chainemc, mclength);
     }
 #endif
 
diff --git a/backend/pdf417.h b/backend/pdf417.h
index f0578ea0..9946f206 100644
--- a/backend/pdf417.h
+++ b/backend/pdf417.h
@@ -56,7 +56,7 @@ INTERNAL_DATA_EXTERN const unsigned short pdf_rap_side[52];
 /* Centre Row Address Pattern from Table 2 */
 INTERNAL_DATA_EXTERN const unsigned short pdf_rap_centre[52];
 
-INTERNAL void pdf_byteprocess(int *chainemc, int *p_mclength, const unsigned char chaine[], int start,
+INTERNAL void pdf_byteprocess(short *chainemc, int *p_mclength, const unsigned char chaine[], int start,
                 const int length, const int lastmode, const int debug);
 
 /* vim: set ts=4 sw=4 et : */
diff --git a/backend/rss.c b/backend/rss.c
index 4c54d2c1..29b9e093 100644
--- a/backend/rss.c
+++ b/backend/rss.c
@@ -810,10 +810,15 @@ INTERNAL int dbar_ltd(struct zint_symbol *symbol, unsigned char source[], int le
 }
 
 /* Check and convert date to DataBar date value */
-INTERNAL int dbar_date(const unsigned char source[], const int src_posn) {
-    int yy = to_int(source + src_posn, 2);
-    int mm = to_int(source + src_posn + 2, 2);
-    int dd = to_int(source + src_posn + 4, 2);
+INTERNAL int dbar_date(const unsigned char source[], const int length, const int src_posn) {
+    int yy, mm, dd;
+
+    if (src_posn + 4 + 2 > length) {
+        return -1;
+    }
+    yy = to_int(source + src_posn, 2);
+    mm = to_int(source + src_posn + 2, 2);
+    dd = to_int(source + src_posn + 4, 2);
 
     /* Month can't be zero but day can (means last day of month,
        GS1 General Specifications Sections 3.4.2 to 3.4.7) */
@@ -875,7 +880,7 @@ static int dbar_exp_binary_string(struct zint_symbol *symbol, const unsigned cha
 
                 } else if ((length == 34) && (source[26] == '1')
                             && (source[27] == '1' || source[27] == '3' || source[27] == '5' || source[27] == '7')
-                            && dbar_date(source, 28) >= 0) {
+                            && dbar_date(source, length, 28) >= 0) {
 
                     /* (01), (310x) and (11) - metric weight and production date */
                     /* (01), (310x) and (13) - metric weight and packaging date */
@@ -906,7 +911,7 @@ static int dbar_exp_binary_string(struct zint_symbol *symbol, const unsigned cha
 
                 } else if ((length == 34) && (source[26] == '1')
                             && (source[27] == '1' || source[27] == '3' || source[27] == '5' || source[27] == '7')
-                            && dbar_date(source, 28) >= 0) {
+                            && dbar_date(source, length, 28) >= 0) {
 
                     /* (01), (320x) and (11) - English weight and production date */
                     /* (01), (320x) and (13) - English weight and packaging date */
@@ -1031,7 +1036,7 @@ static int dbar_exp_binary_string(struct zint_symbol *symbol, const unsigned cha
 
         if (length == 34) {
             /* Date information is included */
-            group_val = dbar_date(source, 28);
+            group_val = dbar_date(source, length, 28);
         } else {
             group_val = 38400;
         }
diff --git a/backend/tests/test_codablock.c b/backend/tests/test_codablock.c
index e7f0c3c9..a8cf4e57 100644
--- a/backend/tests/test_codablock.c
+++ b/backend/tests/test_codablock.c
@@ -575,23 +575,42 @@ static void test_encode(const testCtx *const p_ctx) {
     testFinish();
 }
 
-/* #181 Christian Hartlage OSS-Fuzz */
+/* #181 Christian Hartlage OSS-Fuzz and #300 Andre Maute */
 static void test_fuzz(const testCtx *const p_ctx) {
     int debug = p_ctx->debug;
 
     struct item {
+        int option_1;
+        int option_2;
         char *data;
         int length;
         int ret;
+        int bwipp_cmp;
+        char *comment;
     };
-    /* s/\/\*[ 0-9]*\*\//\=printf("\/\*%3d*\/", line(".") - line("'<")): */
     struct item data[] = {
-        /*  0*/ { "\034\034I", 3, 0 },
+        /*  0*/ { -1, -1, "\034\034I", 3, 0, 1, "" },
+        /*  1*/ { 6, -2147483648,
+                    "\134\000\377\153\143\163\061\061\061\061\061\061\061\061\061\061\061\061\061\061\061\061\061\061\061\061\061\061\061\061\061\061\061\061\061\061\061\061\061\061"
+                    "\071\065\062\000\000\000\000\061\061\061\061\061\061\366\366\366\366\366\366\366\366\366\366\007\366\366\366\366\366\366\366\061\061\061\061\061\061\061\061\061"
+                    "\061\061\061\061\061\061\061\323\323\323\323\000\200\135\000\362\000\000\000\000\000\050\000\000\000\000\162\162\162\162\034\153\143\163\061\061\061\061\061\061"
+                    "\061\061\061\061\061\061\061\061\061\061\061\061\061\061\061\061\061\061\061\061\061\061\061\061\061\061\061\061\061\061\061\061\312\061\061\061\061\061\061\061"
+                    "\061\366\366\366\366\366\366\366\366\366\366\007\366\366\366\366\366\366\366\061\061\061\061\061\061\061\061\061\061\061\061\061\061\061\061\323\323\323\323\000"
+                    "\200\135\000\362\362\362\362\000\167\027\000\000\000\000\000\000\000\000\000\167\167\167\167\000\000\000\154\000\043\000\000\000\000\000\000\000\000\153",
+                    238, 0, 0, "BWIPP different (better) encodation"
+                }, /* #300 (#9) Andre Maute */
     };
     int data_size = ARRAY_SIZE(data);
     int i, length, ret;
     struct zint_symbol *symbol = NULL;
 
+    char escaped[16834];
+    char cmp_buf[32768];
+    char cmp_msg[32768];
+
+    int do_bwipp = (debug & ZINT_DEBUG_TEST_BWIPP) && testUtilHaveGhostscript(); /* Only do BWIPP test if asked, too slow otherwise */
+    int do_zxingcpp = (debug & ZINT_DEBUG_TEST_ZXINGCPP) && testUtilHaveZXingCPPDecoder(); /* Only do ZXing-C++ test if asked, too slow otherwise */
+
     testStartSymbol("test_fuzz", &symbol);
 
     for (i = 0; i < data_size; i++) {
@@ -601,11 +620,40 @@ static void test_fuzz(const testCtx *const p_ctx) {
         symbol = ZBarcode_Create();
         assert_nonnull(symbol, "Symbol not created\n");
 
-        length = testUtilSetSymbol(symbol, BARCODE_CODABLOCKF, -1 /*input_mode*/, -1 /*eci*/, -1 /*option_1*/, -1, -1, -1 /*output_options*/, data[i].data, data[i].length, debug);
+        length = testUtilSetSymbol(symbol, BARCODE_CODABLOCKF, -1 /*input_mode*/, -1 /*eci*/, data[i].option_1, data[i].option_2, -1, -1 /*output_options*/, data[i].data, data[i].length, debug);
 
         ret = ZBarcode_Encode(symbol, (unsigned char *) data[i].data, length);
         assert_equal(ret, data[i].ret, "i:%d ZBarcode_Encode ret %d != %d (%s)\n", i, ret, data[i].ret, symbol->errtxt);
 
+        if (ret < ZINT_ERROR) {
+
+            if (do_bwipp && testUtilCanBwipp(i, symbol, data[i].option_1, data[i].option_2, -1, debug)) {
+                if (!data[i].bwipp_cmp) {
+                    if (debug & ZINT_DEBUG_TEST_PRINT) printf("i:%d %s not BWIPP compatible (%s)\n", i, testUtilBarcodeName(symbol->symbology), data[i].comment);
+                } else {
+                    char modules_dump[32768];
+                    assert_notequal(testUtilModulesDump(symbol, modules_dump, sizeof(modules_dump)), -1, "i:%d testUtilModulesDump == -1\n", i);
+                    ret = testUtilBwipp(i, symbol, data[i].option_1, data[i].option_2, -1, data[i].data, length, NULL, cmp_buf, sizeof(cmp_buf), NULL);
+                    assert_zero(ret, "i:%d %s testUtilBwipp ret %d != 0\n", i, testUtilBarcodeName(symbol->symbology), ret);
+
+                    ret = testUtilBwippCmp(symbol, cmp_msg, cmp_buf, modules_dump);
+                    assert_zero(ret, "i:%d %s testUtilBwippCmp %d != 0 %s\n  actual: %s\nexpected: %s\n",
+                                   i, testUtilBarcodeName(symbol->symbology), ret, cmp_msg, cmp_buf, modules_dump);
+                }
+            }
+            if (do_zxingcpp && testUtilCanZXingCPP(i, symbol, data[i].data, length, debug)) {
+                int cmp_len, ret_len;
+                char modules_dump[32768];
+                assert_notequal(testUtilModulesDump(symbol, modules_dump, sizeof(modules_dump)), -1, "i:%d testUtilModulesDump == -1\n", i);
+                ret = testUtilZXingCPP(i, symbol, data[i].data, length, modules_dump, cmp_buf, sizeof(cmp_buf), &cmp_len);
+                assert_zero(ret, "i:%d %s testUtilZXingCPP ret %d != 0\n", i, testUtilBarcodeName(symbol->symbology), ret);
+
+                ret = testUtilZXingCPPCmp(symbol, cmp_msg, cmp_buf, cmp_len, data[i].data, length, NULL /*primary*/, escaped, &ret_len);
+                assert_zero(ret, "i:%d %s testUtilZXingCPPCmp %d != 0 %s\n  actual: %.*s\nexpected: %.*s\n",
+                               i, testUtilBarcodeName(symbol->symbology), ret, cmp_msg, cmp_len, cmp_buf, ret_len, escaped);
+            }
+        }
+
         ZBarcode_Delete(symbol);
     }
 
diff --git a/backend/tests/test_code1.c b/backend/tests/test_code1.c
index aaedc75d..911f928c 100644
--- a/backend/tests/test_code1.c
+++ b/backend/tests/test_code1.c
@@ -3353,6 +3353,7 @@ static void test_fuzz(const testCtx *const p_ctx) {
     int debug = p_ctx->debug;
 
     struct item {
+		int option_2;
         char *data;
         int length;
         int ret;
@@ -3361,20 +3362,22 @@ static void test_fuzz(const testCtx *const p_ctx) {
     };
     /* s/\/\*[ 0-9]*\*\//\=printf("\/\*%3d*\/", line(".") - line("'<")): */
     struct item data[] = {
-        /* 0*/ { "3333P33B\035333V3333333333333\0363", -1, 0, 1, "" }, /* #181 Nico Gunkel, OSS-Fuzz */
-        /* 1*/ { "{{-06\024755712162106130000000829203983\377", -1, 0, 1, "" }, /* #232 Jan Schrewe, CI-Fuzz, out-of-bounds in is_last_single_ascii() sp + 1 */
-        /* 2*/ { "\000\000\000\367\000\000\000\000\000\103\040\000\000\244\137\140\140\000\000\000\000\000\000\000\000\000\005\000\000\000\000\000\165\060\060\060\060\061\060\060\114\114\060\010\102\102\102\102\102\102\102\102\057\102\100\102\057\233\100\102", 60, 0, 1, "" }, /* #300 (#4) Andre Maute */
+        /*  0*/ { -1, "3333P33B\035333V3333333333333\0363", -1, 0, 1, "" }, /* #181 Nico Gunkel, OSS-Fuzz */
+        /*  1*/ { -1, "{{-06\024755712162106130000000829203983\377", -1, 0, 1, "" }, /* #232 Jan Schrewe, CI-Fuzz, out-of-bounds in is_last_single_ascii() sp + 1 */
+        /*  2*/ { -1, "\000\000\000\367\000\000\000\000\000\103\040\000\000\244\137\140\140\000\000\000\000\000\000\000\000\000\005\000\000\000\000\000\165\060\060\060\060\061\060\060\114\114\060\010\102\102\102\102\102\102\102\102\057\102\100\102\057\233\100\102", 60, 0, 1, "" }, /* #300 (#4) Andre Maute */
+        /*  3*/ { 10, "\153\153\153\060\001\000\134\153\153\015\015\353\362\015\015\015\110\110\110\110\110\110\110\110\110\110\110\110\110\110\110\110\110\110\110\110\110\110\110\110\110\110\110\110\110\110\110\015\015\015\015\015\015\015\015\015\015\015\015\015\015\015\362\362\000", 65, ZINT_ERROR_TOO_LONG, 1, "" }, /* #300 (#8) Andre Maute */
+        /*  4*/ { 10, "\015\015\353\362\015\015\015\110\110\110\110\110\110\110\110\110\110\110\110\110\110\110\110\110\110\110\110\110\110\110\110\110\110\110\110\110\110\110\015\015\015\015\015\015\015\015\015\015\015\015\015\015\015\362\362\000", 39, 0, 1, "" }, /* #300 (#8 shortened) Andre Maute */
     };
     int data_size = ARRAY_SIZE(data);
     int i, length, ret;
-    struct zint_symbol *symbol;
+    struct zint_symbol *symbol = NULL;
 
     char bwipp_buf[32768];
     char bwipp_msg[1024];
 
     int do_bwipp = (debug & ZINT_DEBUG_TEST_BWIPP) && testUtilHaveGhostscript(); /* Only do BWIPP test if asked, too slow otherwise */
 
-    testStart("test_fuzz");
+    testStartSymbol("test_fuzz", &symbol);
 
     for (i = 0; i < data_size; i++) {
 
@@ -3383,22 +3386,19 @@ static void test_fuzz(const testCtx *const p_ctx) {
         symbol = ZBarcode_Create();
         assert_nonnull(symbol, "Symbol not created\n");
 
-        symbol->symbology = BARCODE_CODEONE;
-        symbol->debug |= debug;
-
-        length = data[i].length == -1 ? (int) strlen(data[i].data) : data[i].length;
+        length = testUtilSetSymbol(symbol, BARCODE_CODEONE, -1 /*input_mode*/, -1 /*eci*/, -1 /*option_1*/, data[i].option_2, -1, -1 /*output_options*/, data[i].data, data[i].length, debug);
 
         ret = ZBarcode_Encode(symbol, (unsigned char *) data[i].data, length);
         assert_equal(ret, data[i].ret, "i:%d ZBarcode_Encode ret %d != %d (%s)\n", i, ret, data[i].ret, symbol->errtxt);
 
 		if (ret < ZINT_ERROR) {
-			if (do_bwipp && testUtilCanBwipp(i, symbol, -1, -1, -1, debug)) {
+			if (do_bwipp && testUtilCanBwipp(i, symbol, -1, data[i].option_2, -1, debug)) {
 				if (!data[i].bwipp_cmp) {
 					if (debug & ZINT_DEBUG_TEST_PRINT) printf("i:%d %s not BWIPP compatible (%s)\n", i, testUtilBarcodeName(symbol->symbology), data[i].comment);
 				} else {
 					char modules_dump[4096];
 					assert_notequal(testUtilModulesDump(symbol, modules_dump, sizeof(modules_dump)), -1, "i:%d testUtilModulesDump == -1\n", i);
-					ret = testUtilBwipp(i, symbol, -1, -1, -1, data[i].data, length, NULL, bwipp_buf, sizeof(bwipp_buf), NULL);
+					ret = testUtilBwipp(i, symbol, -1, data[i].option_2, -1, data[i].data, length, NULL, bwipp_buf, sizeof(bwipp_buf), NULL);
 					assert_zero(ret, "i:%d %s testUtilBwipp ret %d != 0\n", i, testUtilBarcodeName(symbol->symbology), ret);
 
 					ret = testUtilBwippCmp(symbol, bwipp_msg, bwipp_buf, modules_dump);
diff --git a/backend/tests/test_composite.c b/backend/tests/test_composite.c
index 1638e897..fd4a28d9 100644
--- a/backend/tests/test_composite.c
+++ b/backend/tests/test_composite.c
@@ -3457,12 +3457,13 @@ static void test_input(const testCtx *const p_ctx) {
     testFinish();
 }
 
-/* #181 Christian Hartlage OSS-Fuzz */
+/* #181 Christian Hartlage OSS-Fuzz and #300 Andre Maute */
 static void test_fuzz(const testCtx *const p_ctx) {
     int debug = p_ctx->debug;
 
     struct item {
         int symbology;
+        int input_mode;
         char *data;
         int length;
         char *composite;
@@ -3470,11 +3471,13 @@ static void test_fuzz(const testCtx *const p_ctx) {
     };
     /* s/\/\*[ 0-9]*\*\//\=printf("\/\*%3d*\/", line(".") - line("'<")): */
     struct item data[] = {
-        /* 0*/ { BARCODE_EANX_CC, "+123456789012345678", -1, "[21]A12345678", ZINT_ERROR_TOO_LONG },
-        /* 1*/ { BARCODE_UPCA_CC, "+123456789012345678", -1, "[21]A12345678", ZINT_ERROR_TOO_LONG },
-        /* 2*/ { BARCODE_UPCE_CC, "+123456789012345678", -1, "[21]A12345678", ZINT_ERROR_TOO_LONG },
-        /* 3*/ { BARCODE_EANX_CC, "+12345", -1, "[21]A12345678", 0 },
-        /* 4*/ { BARCODE_EANX_CC, "+123456", -1, "[21]A12345678", ZINT_ERROR_TOO_LONG },
+        /* 0*/ { BARCODE_EANX_CC, -1, "+123456789012345678", -1, "[21]A12345678", ZINT_ERROR_TOO_LONG },
+        /* 1*/ { BARCODE_UPCA_CC, -1, "+123456789012345678", -1, "[21]A12345678", ZINT_ERROR_TOO_LONG },
+        /* 2*/ { BARCODE_UPCE_CC, -1, "+123456789012345678", -1, "[21]A12345678", ZINT_ERROR_TOO_LONG },
+        /* 3*/ { BARCODE_EANX_CC, -1, "+12345", -1, "[21]A12345678", 0 },
+        /* 4*/ { BARCODE_EANX_CC, -1, "+123456", -1, "[21]A12345678", ZINT_ERROR_TOO_LONG },
+        /* 5*/ { BARCODE_EANX_CC, GS1PARENS_MODE | GS1NOCHECK_MODE, "kks", -1, "()111%", ZINT_ERROR_INVALID_DATA }, /* #300 (#5), Andre Maute */
+        /* 6*/ { BARCODE_UPCA_CC, GS1PARENS_MODE | GS1NOCHECK_MODE, "\153\153\153\153\153\153\153\153\153\153\153\153\153\153\153\153\153\153\153\153\153\153\153\153\153\153\225\215\153\153\153\153\153\153\263\153\153\153\153\153\153\153\153\153\153\163", -1, "()90", ZINT_ERROR_TOO_LONG }, /* #300 (#6), Andre Maute */
     };
     int data_size = ARRAY_SIZE(data);
     int i, length, composite_length, ret;
@@ -3489,7 +3492,7 @@ static void test_fuzz(const testCtx *const p_ctx) {
         symbol = ZBarcode_Create();
         assert_nonnull(symbol, "Symbol not created\n");
 
-        length = testUtilSetSymbol(symbol, data[i].symbology, -1 /*input_mode*/, -1 /*eci*/, -1 /*option_1*/, -1, -1, -1 /*output_options*/, data[i].data, -1, debug);
+        length = testUtilSetSymbol(symbol, data[i].symbology, data[i].input_mode, -1 /*eci*/, -1 /*option_1*/, -1, -1, -1 /*output_options*/, data[i].data, -1, debug);
         assert_zero(length >= 128, "i:%d length %d >= 128\n", i, length);
         strcpy(symbol->primary, data[i].data);
 
diff --git a/backend/tests/test_pdf417.c b/backend/tests/test_pdf417.c
index 1ff09225..d1119e85 100644
--- a/backend/tests/test_pdf417.c
+++ b/backend/tests/test_pdf417.c
@@ -4782,13 +4782,16 @@ static void test_fuzz(const testCtx *const p_ctx) {
     struct item {
         int symbology;
         int input_mode;
+        int option_1;
+        int option_2;
         char *data;
         int length;
-        int option_1;
         int ret;
+        int bwipp_cmp;
+        char *comment;
     };
     struct item data[] = {
-        /* 0*/ { BARCODE_PDF417, DATA_MODE | FAST_MODE,
+        /*  0*/ { BARCODE_PDF417, DATA_MODE | FAST_MODE, -1, -1,
                     "\060\075\204\060\204\060\204\041\060\075\060\204\060\075\060\075\204\060\075\060\103\204\060\204\060\003\120\060\075\060\004\060\204\060\074\204\060\204\060\075"
                     "\204\060\075\060\103\204\060\214\060\204\060\075\060\031\060\073\060\025\060\075\060\204\060\103\204\060\075\060\204\060\000\075\060\226\060\100\204\060\204\060"
                     "\204\060\075\204\060\120\214\060\204\060\074\377\060\075\204\060\075\060\103\204\060\214\060\204\060\075\060\041\060\000\060\204\060\120\214\060\204\060\074\204"
@@ -4814,8 +4817,9 @@ static void test_fuzz(const testCtx *const p_ctx) {
                     "\060\204\041\060\075\060\204\060\075\060\075\204\060\075\060\103\204\060\204\060\003\120\060\075\060\004\060\204\060\074\204\060\204\060\075\204\060\075\060\103"
                     "\204\060\214\060\204\060\075\060\073\060\075\060\204\060\103\204\060\075\060\204\060\204\060\122\060\000\060\075\060\000\076\060\100\000\060\004\060\103\204\060"
                     "\204\060\003\060\204\075\060\120\214\060\204\060\004\060\103\204\060\204\060\003\060\211\074\060\120\060\124\060\351\060\120\060\075\060\351\060\072\375\060\204\060",
-                    1001, -1, ZINT_ERROR_TOO_LONG }, /* Original OSS-Fuzz triggering data */
-        /* 1*/ { BARCODE_PDF417, DATA_MODE,
+                    1001, ZINT_ERROR_TOO_LONG, 1, ""
+                }, /* Original OSS-Fuzz triggering data */
+        /*  1*/ { BARCODE_PDF417, DATA_MODE, -1, -1,
                     "\060\075\204\060\204\060\204\041\060\075\060\204\060\075\060\075\204\060\075\060\103\204\060\204\060\003\120\060\075\060\004\060\204\060\074\204\060\204\060\075"
                     "\204\060\075\060\103\204\060\214\060\204\060\075\060\031\060\073\060\025\060\075\060\204\060\103\204\060\075\060\204\060\000\075\060\226\060\100\204\060\204\060"
                     "\204\060\075\204\060\120\214\060\204\060\074\377\060\075\204\060\075\060\103\204\060\214\060\204\060\075\060\041\060\000\060\204\060\120\214\060\204\060\074\204"
@@ -4841,8 +4845,9 @@ static void test_fuzz(const testCtx *const p_ctx) {
                     "\060\204\041\060\075\060\204\060\075\060\075\204\060\075\060\103\204\060\204\060\003\120\060\075\060\004\060\204\060\074\204\060\204\060\075\204\060\075\060\103"
                     "\204\060\214\060\204\060\075\060\073\060\075\060\204\060\103\204\060\075\060\204\060\204\060\122\060\000\060\075\060\000\076\060\100\000\060\004\060\103\204\060"
                     "\204\060\003\060\204\075\060\120\214\060\204\060\004\060\103\204\060\204\060\003\060\211\074\060\120\060\124\060\351\060\120\060\075\060\351\060\072\375\060\204\060",
-                    1001, -1, 0 }, /* Original OSS-Fuzz triggering data */
-        /* 2*/ { BARCODE_PDF417COMP, DATA_MODE | FAST_MODE,
+                    1001, 0, 0, "BWIPP different encodation"
+                }, /* Original OSS-Fuzz triggering data */
+        /*  2*/ { BARCODE_PDF417COMP, DATA_MODE | FAST_MODE, -1, -1,
                     "\060\075\204\060\204\060\204\041\060\075\060\204\060\075\060\075\204\060\075\060\103\204\060\204\060\003\120\060\075\060\004\060\204\060\074\204\060\204\060\075"
                     "\204\060\075\060\103\204\060\214\060\204\060\075\060\031\060\073\060\025\060\075\060\204\060\103\204\060\075\060\204\060\000\075\060\226\060\100\204\060\204\060"
                     "\204\060\075\204\060\120\214\060\204\060\074\377\060\075\204\060\075\060\103\204\060\214\060\204\060\075\060\041\060\000\060\204\060\120\214\060\204\060\074\204"
@@ -4868,8 +4873,9 @@ static void test_fuzz(const testCtx *const p_ctx) {
                     "\060\204\041\060\075\060\204\060\075\060\075\204\060\075\060\103\204\060\204\060\003\120\060\075\060\004\060\204\060\074\204\060\204\060\075\204\060\075\060\103"
                     "\204\060\214\060\204\060\075\060\073\060\075\060\204\060\103\204\060\075\060\204\060\204\060\122\060\000\060\075\060\000\076\060\100\000\060\004\060\103\204\060"
                     "\204\060\003\060\204\075\060\120\214\060\204\060\004\060\103\204\060\204\060\003\060\211\074\060\120\060\124\060\351\060\120\060\075\060\351\060\072\375\060\204\060",
-                    1001, -1, ZINT_ERROR_TOO_LONG },
-        /* 3*/ { BARCODE_PDF417COMP, DATA_MODE,
+                    1001, ZINT_ERROR_TOO_LONG, 1, ""
+                },
+        /*  3*/ { BARCODE_PDF417COMP, DATA_MODE, -1, -1,
                     "\060\075\204\060\204\060\204\041\060\075\060\204\060\075\060\075\204\060\075\060\103\204\060\204\060\003\120\060\075\060\004\060\204\060\074\204\060\204\060\075"
                     "\204\060\075\060\103\204\060\214\060\204\060\075\060\031\060\073\060\025\060\075\060\204\060\103\204\060\075\060\204\060\000\075\060\226\060\100\204\060\204\060"
                     "\204\060\075\204\060\120\214\060\204\060\074\377\060\075\204\060\075\060\103\204\060\214\060\204\060\075\060\041\060\000\060\204\060\120\214\060\204\060\074\204"
@@ -4895,8 +4901,9 @@ static void test_fuzz(const testCtx *const p_ctx) {
                     "\060\204\041\060\075\060\204\060\075\060\075\204\060\075\060\103\204\060\204\060\003\120\060\075\060\004\060\204\060\074\204\060\204\060\075\204\060\075\060\103"
                     "\204\060\214\060\204\060\075\060\073\060\075\060\204\060\103\204\060\075\060\204\060\204\060\122\060\000\060\075\060\000\076\060\100\000\060\004\060\103\204\060"
                     "\204\060\003\060\204\075\060\120\214\060\204\060\004\060\103\204\060\204\060\003\060\211\074\060\120\060\124\060\351\060\120\060\075\060\351\060\072\375\060\204\060",
-                    1001, -1, 0 },
-        /* 4*/ { BARCODE_MICROPDF417, DATA_MODE | FAST_MODE,
+                    1001, 0, 0, "BWIPP different encodation"
+                },
+        /*  4*/ { BARCODE_MICROPDF417, DATA_MODE | FAST_MODE, -1, -1,
                     "\060\075\204\060\204\060\204\041\060\075\060\204\060\075\060\075\204\060\075\060\103\204\060\204\060\003\120\060\075\060\004\060\204\060\074\204\060\204\060\075"
                     "\204\060\075\060\103\204\060\214\060\204\060\075\060\031\060\073\060\025\060\075\060\204\060\103\204\060\075\060\204\060\000\075\060\226\060\100\204\060\204\060"
                     "\204\060\075\204\060\120\214\060\204\060\074\377\060\075\204\060\075\060\103\204\060\214\060\204\060\075\060\041\060\000\060\204\060\120\214\060\204\060\074\204"
@@ -4922,8 +4929,9 @@ static void test_fuzz(const testCtx *const p_ctx) {
                     "\060\204\041\060\075\060\204\060\075\060\075\204\060\075\060\103\204\060\204\060\003\120\060\075\060\004\060\204\060\074\204\060\204\060\075\204\060\075\060\103"
                     "\204\060\214\060\204\060\075\060\073\060\075\060\204\060\103\204\060\075\060\204\060\204\060\122\060\000\060\075\060\000\076\060\100\000\060\004\060\103\204\060"
                     "\204\060\003\060\204\075\060\120\214\060\204\060\004\060\103\204\060\204\060\003\060\211\074\060\120\060\124\060\351\060\120\060\075\060\351\060\072\375\060\204\060",
-                    1001, -1, ZINT_ERROR_TOO_LONG },
-        /* 5*/ { BARCODE_MICROPDF417, DATA_MODE,
+                    1001, ZINT_ERROR_TOO_LONG, 1, ""
+                },
+        /*  5*/ { BARCODE_MICROPDF417, DATA_MODE, -1, -1,
                     "\060\075\204\060\204\060\204\041\060\075\060\204\060\075\060\075\204\060\075\060\103\204\060\204\060\003\120\060\075\060\004\060\204\060\074\204\060\204\060\075"
                     "\204\060\075\060\103\204\060\214\060\204\060\075\060\031\060\073\060\025\060\075\060\204\060\103\204\060\075\060\204\060\000\075\060\226\060\100\204\060\204\060"
                     "\204\060\075\204\060\120\214\060\204\060\074\377\060\075\204\060\075\060\103\204\060\214\060\204\060\075\060\041\060\000\060\204\060\120\214\060\204\060\074\204"
@@ -4949,8 +4957,9 @@ static void test_fuzz(const testCtx *const p_ctx) {
                     "\060\204\041\060\075\060\204\060\075\060\075\204\060\075\060\103\204\060\204\060\003\120\060\075\060\004\060\204\060\074\204\060\204\060\075\204\060\075\060\103"
                     "\204\060\214\060\204\060\075\060\073\060\075\060\204\060\103\204\060\075\060\204\060\204\060\122\060\000\060\075\060\000\076\060\100\000\060\004\060\103\204\060"
                     "\204\060\003\060\204\075\060\120\214\060\204\060\004\060\103\204\060\204\060\003\060\211\074\060\120\060\124\060\351\060\120\060\075\060\351\060\072\375\060\204\060",
-                    1001, -1, ZINT_ERROR_TOO_LONG },
-        /* 6*/ { BARCODE_PDF417, DATA_MODE | FAST_MODE,
+                    1001, ZINT_ERROR_TOO_LONG, 1, ""
+                },
+        /*  6*/ { BARCODE_PDF417, DATA_MODE | FAST_MODE, 0, -1,
                     "123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"
                     "123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"
                     "123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"
@@ -4970,8 +4979,9 @@ static void test_fuzz(const testCtx *const p_ctx) {
                     "123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"
                     "123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"
                     "1234567890",
-                    2710, 0, 0 }, /* Max numerics with ECC 0 */
-        /* 7*/ { BARCODE_PDF417, DATA_MODE,
+                    2710, 0, 0, "BWIPP different encodation"
+                }, /* Max numerics with ECC 0 */
+        /*  7*/ { BARCODE_PDF417, DATA_MODE, 0, -1,
                     "123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"
                     "123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"
                     "123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"
@@ -4991,8 +5001,9 @@ static void test_fuzz(const testCtx *const p_ctx) {
                     "123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"
                     "123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"
                     "1234567890",
-                    2710, 0, 0 }, /* Max numerics with ECC 0 */
-        /* 8*/ { BARCODE_PDF417, DATA_MODE | FAST_MODE,
+                    2710, 0, 0, "BWIPP different encodation"
+                }, /* Max numerics with ECC 0 */
+        /*  8*/ { BARCODE_PDF417, DATA_MODE | FAST_MODE, 0, -1,
                     "123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"
                     "123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"
                     "123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"
@@ -5012,8 +5023,9 @@ static void test_fuzz(const testCtx *const p_ctx) {
                     "123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"
                     "123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"
                     "12345678901",
-                    2711, 0, ZINT_ERROR_TOO_LONG },
-        /* 9*/ { BARCODE_PDF417, DATA_MODE,
+                    2711, ZINT_ERROR_TOO_LONG, 1, ""
+                },
+        /*  9*/ { BARCODE_PDF417, DATA_MODE, 0, -1,
                     "123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"
                     "123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"
                     "123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"
@@ -5033,8 +5045,9 @@ static void test_fuzz(const testCtx *const p_ctx) {
                     "123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"
                     "123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"
                     "12345678901",
-                    2711, 0, ZINT_ERROR_TOO_LONG },
-        /*10*/ { BARCODE_PDF417, DATA_MODE | FAST_MODE,
+                    2711, ZINT_ERROR_TOO_LONG, 1, ""
+                },
+        /* 10*/ { BARCODE_PDF417, DATA_MODE | FAST_MODE, -1, -1,
                     "123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"
                     "123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"
                     "123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"
@@ -5052,8 +5065,9 @@ static void test_fuzz(const testCtx *const p_ctx) {
                     "123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"
                     "123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"
                     "12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678",
-                    2528, -1, 0 }, /* Max numerics with ECC 5 */
-        /*11*/ { BARCODE_PDF417, DATA_MODE,
+                    2528, 0, 0, "BWIPP different encodation"
+                }, /* Max numerics with ECC 5 */
+        /* 11*/ { BARCODE_PDF417, DATA_MODE, -1, -1,
                     "123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"
                     "123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"
                     "123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"
@@ -5071,8 +5085,9 @@ static void test_fuzz(const testCtx *const p_ctx) {
                     "123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"
                     "123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"
                     "12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678",
-                    2528, -1, 0 }, /* Max numerics with ECC 5 */
-        /*12*/ { BARCODE_PDF417, DATA_MODE | FAST_MODE,
+                    2528, 0, 0, "BWIPP different encodation"
+                }, /* Max numerics with ECC 5 */
+        /* 12*/ { BARCODE_PDF417, DATA_MODE | FAST_MODE, 0, -1,
                     "ABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZ"
                     "ABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZ"
                     "ABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZ"
@@ -5088,8 +5103,9 @@ static void test_fuzz(const testCtx *const p_ctx) {
                     "ABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZ"
                     "ABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZ"
                     "ABCDEFGHIJKLMNOPQRSTUVWXYZABCD",
-                    1850, 0, 0 }, /* Max text with ECC 0 */
-        /*13*/ { BARCODE_PDF417, DATA_MODE,
+                    1850, 0, 0, "BWIPP different encodation"
+                }, /* Max text with ECC 0 */
+        /* 13*/ { BARCODE_PDF417, DATA_MODE, 0, -1,
                     "ABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZ"
                     "ABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZ"
                     "ABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZ"
@@ -5105,8 +5121,9 @@ static void test_fuzz(const testCtx *const p_ctx) {
                     "ABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZ"
                     "ABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZ"
                     "ABCDEFGHIJKLMNOPQRSTUVWXYZABCD",
-                    1850, 0, 0 }, /* Max text with ECC 0 */
-        /*14*/ { BARCODE_PDF417, DATA_MODE | FAST_MODE,
+                    1850, 0, 0, "BWIPP different encodation"
+                }, /* Max text with ECC 0 */
+        /* 14*/ { BARCODE_PDF417, DATA_MODE | FAST_MODE, 0, -1,
                     "ABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZ"
                     "ABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZ"
                     "ABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZ"
@@ -5122,8 +5139,9 @@ static void test_fuzz(const testCtx *const p_ctx) {
                     "ABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZ"
                     "ABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZ"
                     "ABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFG",
-                    1853, 0, ZINT_ERROR_TOO_LONG },
-        /*15*/ { BARCODE_PDF417, DATA_MODE,
+                    1853, ZINT_ERROR_TOO_LONG, 1, ""
+                },
+        /* 15*/ { BARCODE_PDF417, DATA_MODE, 0, -1,
                     "ABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZ"
                     "ABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZ"
                     "ABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZ"
@@ -5139,8 +5157,9 @@ static void test_fuzz(const testCtx *const p_ctx) {
                     "ABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZ"
                     "ABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZ"
                     "ABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFG",
-                    1853, 0, ZINT_ERROR_TOO_LONG },
-        /*16*/ { BARCODE_PDF417, DATA_MODE | FAST_MODE,
+                    1853, ZINT_ERROR_TOO_LONG, 1, ""
+                },
+        /* 16*/ { BARCODE_PDF417, DATA_MODE | FAST_MODE, 0, -1,
                     "\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240"
                     "\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240"
                     "\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240"
@@ -5169,8 +5188,9 @@ static void test_fuzz(const testCtx *const p_ctx) {
                     "\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240"
                     "\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240"
                     "\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240",
-                    1108, 0, 0 }, /* Max bytes with ECC 0 */
-        /*17*/ { BARCODE_PDF417, DATA_MODE,
+                    1108, 0, 0, "BWIPP different encodation"
+                }, /* Max bytes with ECC 0 */
+        /* 17*/ { BARCODE_PDF417, DATA_MODE, 0, -1,
                     "\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240"
                     "\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240"
                     "\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240"
@@ -5199,8 +5219,9 @@ static void test_fuzz(const testCtx *const p_ctx) {
                     "\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240"
                     "\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240"
                     "\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240",
-                    1108, 0, 0 }, /* Max bytes with ECC 0 */
-        /*18*/ { BARCODE_PDF417, DATA_MODE | FAST_MODE,
+                    1108, 0, 0, "BWIPP different encodation"
+                }, /* Max bytes with ECC 0 */
+        /* 18*/ { BARCODE_PDF417, DATA_MODE | FAST_MODE, 0, -1,
                     "\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240"
                     "\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240"
                     "\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240"
@@ -5229,8 +5250,9 @@ static void test_fuzz(const testCtx *const p_ctx) {
                     "\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240"
                     "\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240"
                     "\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240",
-                    1111, 0, ZINT_ERROR_TOO_LONG },
-        /*19*/ { BARCODE_PDF417, DATA_MODE,
+                    1111, ZINT_ERROR_TOO_LONG, 1, ""
+                },
+        /* 19*/ { BARCODE_PDF417, DATA_MODE, 0, -1,
                     "\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240"
                     "\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240"
                     "\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240"
@@ -5259,44 +5281,53 @@ static void test_fuzz(const testCtx *const p_ctx) {
                     "\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240"
                     "\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240"
                     "\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240\240",
-                    1111, 0, ZINT_ERROR_TOO_LONG },
-        /*20*/ { BARCODE_MICROPDF417, DATA_MODE | FAST_MODE,
+                    1111, ZINT_ERROR_TOO_LONG, 1, ""
+                },
+        /* 20*/ { BARCODE_MICROPDF417, DATA_MODE | FAST_MODE, -1, -1,
                     "123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"
                     "123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"
                     "123456789012345678901234567890123456789012345678901234567890123456",
-                    366, -1, 0 }, /* Max numerics */
-        /*21*/ { BARCODE_MICROPDF417, DATA_MODE,
+                    366, 0, 1, ""
+                }, /* Max numerics */
+        /* 21*/ { BARCODE_MICROPDF417, DATA_MODE, -1, -1,
                     "123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"
                     "123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"
                     "123456789012345678901234567890123456789012345678901234567890123456",
-                    366, -1, 0 }, /* Max numerics */
-        /*22*/ { BARCODE_MICROPDF417, DATA_MODE | FAST_MODE,
+                    366, 0, 1, ""
+                }, /* Max numerics */
+        /* 22*/ { BARCODE_MICROPDF417, DATA_MODE | FAST_MODE, -1, -1,
                     "123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"
                     "123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"
                     "1234567890123456789012345678901234567890123456789012345678901234567",
-                    367, -1, ZINT_ERROR_TOO_LONG },
-        /*23*/ { BARCODE_MICROPDF417, DATA_MODE,
+                    367, ZINT_ERROR_TOO_LONG, 1, ""
+                },
+        /* 23*/ { BARCODE_MICROPDF417, DATA_MODE, -1, -1,
                     "123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"
                     "123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"
                     "1234567890123456789012345678901234567890123456789012345678901234567",
-                    367, -1, ZINT_ERROR_TOO_LONG },
-        /*24*/ { BARCODE_MICROPDF417, DATA_MODE | FAST_MODE,
+                    367, ZINT_ERROR_TOO_LONG, 1, ""
+                },
+        /* 24*/ { BARCODE_MICROPDF417, DATA_MODE | FAST_MODE, -1, -1,
                     "ABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZ"
                     "ABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOP",
-                    250, -1, 0 }, /* Max text */
-        /*25*/ { BARCODE_MICROPDF417, DATA_MODE,
+                    250, 0, 1, ""
+                }, /* Max text */
+        /* 25*/ { BARCODE_MICROPDF417, DATA_MODE, -1, -1,
                     "ABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZ"
                     "ABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOP",
-                    250, -1, 0 }, /* Max text */
-        /*26*/ { BARCODE_MICROPDF417, DATA_MODE | FAST_MODE,
+                    250, 0, 1, ""
+                }, /* Max text */
+        /* 26*/ { BARCODE_MICROPDF417, DATA_MODE | FAST_MODE, -1, -1,
                     "ABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZ"
                     "ABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQ",
-                    251, -1, ZINT_ERROR_TOO_LONG },
-        /*27*/ { BARCODE_MICROPDF417, DATA_MODE,
+                    251, ZINT_ERROR_TOO_LONG, 1, ""
+                },
+        /* 27*/ { BARCODE_MICROPDF417, DATA_MODE, -1, -1,
                     "ABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZ"
                     "ABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQ",
-                    251, -1, ZINT_ERROR_TOO_LONG },
-        /*28*/ { BARCODE_PDF417COMP, DATA_MODE | FAST_MODE,
+                    251, ZINT_ERROR_TOO_LONG, 1, ""
+                },
+        /* 28*/ { BARCODE_PDF417COMP, DATA_MODE | FAST_MODE, 0, -1,
                     "\000\000\000\377\377\010\002\000\000\033\005\031\000\000\002\000\000\000\000\101\101\101\101\101\101\101\101\000\000\000\000\000\000\000\374\000\101\101\101\000"
                     "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\323\000\000\000\000\000\010\000\000\000\000\165\000\000\000\000\000\000\000\000\000\000\000\000\056"
                     "\000\000\000\000\000\000\000\000\000\000\100\000\000\101\101\101\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\323\000\000\000\000\000\010\000"
@@ -5324,12 +5355,229 @@ static void test_fuzz(const testCtx *const p_ctx) {
                     "\101\000\000\000\000\374\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\323\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
                     "\000\000\000\000\000\000\000\000\323\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
                     "\000\000\000\000\000\000\000\000",
-                    1048, 0, 0 }, /* #300 (#1) Andre Maute */
+                    1048, 0, 0, "BWIPP different encodation"
+                }, /* #300 (#1) Andre Maute */
+        /* 29*/ { BARCODE_PDF417, DATA_MODE | FAST_MODE, -1, -1,
+                    "\060\060\060\060\060\060\060\060\060\060\060\162\162\162\162\162\162\162\162\162\162\047\122\162\000\000\167\211\206\001\000\047\153\153\153\153\153\067\066\164"
+                    "\060\060\060\060\060\060\060\060\060\060\060\162\162\162\162\162\162\162\162\162\162\047\122\162\000\000\167\211\206\001\000\047\153\153\153\153\153\153\153\164"
+                    "\164\164\164\164\164\124\164\164\164\164\164\164\164\164\164\164\164\164\164\164\060\060\060\060\060\060\060\060\060\060\060\162\162\162\162\162\162\162\162\162"
+                    "\162\047\122\162\162\162\162\162\162\162\167\167\167\162\162\162\162\047\122\162\000\000\167\167\167\001\152\152\152\152\152\152\051\050\051\051\051\051\051\051"
+                    "\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\050\152\152\152\152\152\152\152\152\051\050\051\051\051\051\051\051\051\051\051\051\051\051\051\051"
+                    "\050\051\051\050\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\050\152\152\152\152\152\152\152\152\051\050\051\051\051\051\051"
+                    "\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\050\152\152\152\152\152\152\152\152\051\050\051\051\051\051\051\051\051\051\051\051\051\051\051"
+                    "\051\051\051\051\051\051\051\050\152\051\051\051\051\051\051\051\051\051\051\050\152\051\051\051\051\051\051\051\051\051\051\051\107\107\107\107\107\107\107\107"
+                    "\107\107\162\107\107\107\107\107\107\107\107\107\107\107\107\107\107\051\051\051\051\051\051\051\051\051\051\051\051\050\051\051\050\051\051\152\152\152\152\152"
+                    "\051\050\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\050\152\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\152"
+                    "\152\152\152\152\152\152\152\152\152\107\107\051\051\051\051\051\051\051\051\051\051\051\051\050\051\051\050\051\051\051\051\051\051\051\051\051\051\051\051\051"
+                    "\051\051\051\051\051\051\051\050\152\152\152\152\152\152\152\152\051\050\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\050"
+                    "\152\152\152\152\152\152\152\152\051\050\051\051\051\051\051\051\051\051\051\051\051\051\051\051\050\051\051\050\051\051\051\051\051\051\051\051\051\051\051\051"
+                    "\051\051\051\051\051\051\051\051\050\152\152\152\152\152\152\152\152\051\050\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051"
+                    "\050\152\152\152\152\152\152\152\152\051\050\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\050\152\051\051\051\051\051\051\051"
+                    "\051\051\051\050\152\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\050\152\152\152\152\152\152"
+                    "\152\152\051\050\051\051\051\051\051\051\051\051\051\050\152\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\152\152\051\051\051\051\051\051\051\051"
+                    "\051\051\051\051\051\051\051\051\051\050\152\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\152\152\152\152\152\152\152\152\152\152\107\107\051\051"
+                    "\051\051\051\051\051\051\051\051\051\051\050\051\051\050\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\050\152\152\152\152\152"
+                    "\152\152\152\051\050\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\050\152\051\051\051\051\051\051\051\051\051\051\051\051\051"
+                    "\051\051\051\051\051\051\051\051\152\152\051\051\051\051\051\051\051\051\051\051\051\051\051\107\107\051\051\051\051\051\051\051\051\051\051\051\051\050\051\051"
+                    "\050\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\050\152\152\152\152\152\152\152\152\051\050\051\051\051\051\051\051\051\051"
+                    "\051\051\051\051\051\051\051\051\051\051\051\051\050\152\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\152\152\152\152\152\152\152\152\152\152\107"
+                    "\107\107\107\107\152\051\051\051\051\107\107\107\107\107\107\107\107\107\107\107\051\051\051\051\051\051\050\051\051\051\051\051\051\051\051\051\051\051\051\051"
+                    "\051\051\050\152\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\152\152\152\152\152\152\152\152\152\152\107\107\051\051\051\051\051\051\051\051\051"
+                    "\051\051\051\050\051\051\050\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\050\152\152\152\152\152\152\152\152\051\050\051\051"
+                    "\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\050\152\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\152\152\152\152\152"
+                    "\152\152\152\152\152\107\107\107\107\107\152\051\051\051\152\051\050\051\051\051\051\051\051\051\050\152\051\051\051\051\051\051\051\051\051\051\051\051\051\051"
+                    "\051\152\152\152\152\152\152\152\152\152\152\107\107\051\051\051\051\051\051\051\051\051\051\051\051\050\051\051\050\051\051\051\051\051\051\051\051\051\051\051"
+                    "\051\051\051\051\051\051\051\051\051\050\152\152\152\152\152\152\152\152\051\050\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051"
+                    "\050\152\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\152\152\051\051\051\051\051\051\051\051\051\051\051\051\051\050\051\051\050\051\051\051\051"
+                    "\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\050\152\152\152\152\152\152\152\152\051\050\051\051\051\051\051\051\051\051\051\051\051\051\051"
+                    "\051\051\051\051\051\051\051\050\152\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\152\152\152\152\152\152\152\152\152\152\107\107\107\107\107\152"
+                    "\051\051\051\051\107\107\107\107\107\107\107\107\107\107\107\051\051\051\051\051\051\050\051\051\051\051\051\051\051\051\051\051\051\050\152\152\152\152\152\152"
+                    "\152\152\051\050\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\050\152\051\051\051\051\051\051\051\051\051\051\051\051\051\051"
+                    "\051\051\051\051\152\152\152\152\152\152\152\152\152\152\107\107\051\051\051\051\051\051\051\051\051\051\051\051\050\051\051\050\051\051\051\051\051\051\051\051"
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+                    "\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\050\152\152\152\152\152\152\152\152\051\050\051\051\051\051\051\051\051\051\051"
+                    "\051\051\051\051\051\051\051\051\051\051\051\050\152\051\051\051\051\051\051\051\051\051\051\051\051\050\051\051\051\051\051\051\051\051\051\051\051\051\051\051"
+                    "\051\051\051\051\051\051\050\152\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\152\152\152\152\152\152\152\152\152\152\107\107\107\107\107\152\051"
+                    "\051\051\051\107\107\107\107\107\107\107\107\107\107\107\051\051\051\051\051\051\050\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\050\152\051\051"
+                    "\051\051\051\051\051\051\051\051\051\051\051\051\051\152\152\152\152\152\152\152\152\152\152\107\107\051\051\051\051\051\051\051\051\051\051\051\051\050\051\051"
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+                    "\107\107\107\107\152\051\051\051\051\107\107\107\107\107\107\107\107\107\107\107\051\051\051\051\051\051\050\051\051\051\051\051\051\051\051\051\051\051\050\152"
+                    "\152\152\152\152\152\152\152\051\050\051\051\051\051\051\051\051\050\152\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\152\152\152\152\152\152\152"
+                    "\152\152\152\107\107\051\051\051\051\051\051\051\051\051\051\051\051\050\051\051\050\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051"
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+                    "\051\051\051\051\051\051\050\051\051\050\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\050\152\152\152\152\152\152\152\152\051"
+                    "\050\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\050\152\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\152\152"
+                    "\152\152\152\152\152\152\152\152\107\107\107\107\107\152\051\051\051\051\107\107\107\107\107\107\107\107\107\107\107\051\051\051\051\051\051\050\051\051\051\051"
+                    "\051\051\051\051\051\051\051\051\051\051\051\051\051\051\050\152\152\152\152\152\152\152\152\051\050\051\051\051\051\051\051\051\051\051\050\152\051\051\051\051"
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+                    "\051\051\051\051\051\051\051\152\152\152\152\152\152\152\152\152\152\107\107\051\051\051\051\051\051\051\051\051\051\051\051\050\051\051\050\051\051\051\051\051"
+                    "\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\050\152\152\152\152\152\152\152\152\051\050\051\051\051\051\051\051\051\051\051\051\051\051\051\051"
+                    "\051\051\051\051\051\051\050\152\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\152\152\051\051\051\051\051\051\051\051\051"
+                    "\051\051\051\051\107\107\051\051\051\051\051\051\051\051\051\051\051\051\050\051\051\050\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051"
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+                    "\162\162\001\100\167\167\001\044\204\167\167",
+                    2611, ZINT_ERROR_TOO_LONG, 1, ""
+                }, /* #300 (#7) Andre Maute */
+        /* 30*/ { BARCODE_PDF417, DATA_MODE, -1, -1,
+                    "\060\060\060\060\060\060\060\060\060\060\060\162\162\162\162\162\162\162\162\162\162\047\122\162\000\000\167\211\206\001\000\047\153\153\153\153\153\067\066\164"
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+                    "\164\164\164\164\164\124\164\164\164\164\164\164\164\164\164\164\164\164\164\164\060\060\060\060\060\060\060\060\060\060\060\162\162\162\162\162\162\162\162\162"
+                    "\162\047\122\162\162\162\162\162\162\162\167\167\167\162\162\162\162\047\122\162\000\000\167\167\167\001\152\152\152\152\152\152\051\050\051\051\051\051\051\051"
+                    "\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\050\152\152\152\152\152\152\152\152\051\050\051\051\051\051\051\051\051\051\051\051\051\051\051\051"
+                    "\050\051\051\050\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\050\152\152\152\152\152\152\152\152\051\050\051\051\051\051\051"
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+                    "\107\107\162\107\107\107\107\107\107\107\107\107\107\107\107\107\107\051\051\051\051\051\051\051\051\051\051\051\051\050\051\051\050\051\051\152\152\152\152\152"
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+                    "\152\152\152\152\152\152\152\152\152\107\107\051\051\051\051\051\051\051\051\051\051\051\051\050\051\051\050\051\051\051\051\051\051\051\051\051\051\051\051\051"
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+                    "\152\152\051\050\051\051\051\051\051\051\051\051\051\050\152\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\152\152\051\051\051\051\051\051\051\051"
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+                    "\051\051\051\051\051\051\051\051\152\152\051\051\051\051\051\051\051\051\051\051\051\051\051\107\107\051\051\051\051\051\051\051\051\051\051\051\051\050\051\051"
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+                    "\107\107\107\107\152\051\051\051\051\107\107\107\107\107\107\107\107\107\107\107\051\051\051\051\051\051\050\051\051\051\051\051\051\051\051\051\051\051\051\051"
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+                    "\051\051\051\051\051\051\051\152\152\152\152\152\152\152\152\152\152\107\107\051\051\051\051\051\051\051\051\051\051\051\051\050\051\051\050\051\051\051\051\051"
+                    "\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\050\152\152\152\152\152\152\152\152\051\050\051\051\051\051\051\051\051\051\051\051\051\051\051\051"
+                    "\051\051\051\051\051\051\050\152\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\152\152\051\051\051\051\051\051\051\051\051"
+                    "\051\051\051\051\107\107\051\051\051\051\051\051\051\051\051\051\051\051\050\051\051\050\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051"
+                    "\051\051\050\152\152\152\152\152\152\152\152\051\050\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\051\000\124\164\164\162\162\162\047\122\162\162"
+                    "\162\162\001\100\167\167\001\044\204\167\167",
+                    2611, ZINT_ERROR_TOO_LONG, 1, ""
+                }, /* #300 (#7) Andre Maute !FAST_MODE */
+        /* 31*/ { BARCODE_PDF417, DATA_MODE | FAST_MODE, -1, 242,
+                    "\000\000\000\000\000\000\000\000\000\000\000\212\377\000\000\153\153\153\153\153\153\153\060\047\047\043\047\057\153\000\153\153\137\377\153\153\000\134\000\000"
+                    "\000\153\153\343\153\153\153\060\047\047\043\047\057\157\153\153\153\000\162\162\162\162\162\162\377\053\377\377\377\134\134\134\142\134\162\162\377\377\377\167"
+                    "\001\100\000\377\004\002\000\000\000\000\000\001\000\000\134\077\162\072\176\000\162\162\162\162\162\162\377\053\377\377\377\134\134\134\142\134\162\162\162\162"
+                    "\077\162\072\176\000\162\362\377\377\377\377\377\377\134\134\134\142\134\162\362\162\162\364\072\176\000\162\162\162\162\162\174\174\377\134\134\134\162\142\362"
+                    "\134\162\162\162\072\176\000\215\215\162\162\162\174\174\174\174\072\176\000\162\162\162\162\162\162\377\053\377\377\377\134\134\134\142\134\162\162\162\162\077"
+                    "\162\072\176\000\162\162\377\377\377\377\377\377\134\134\134\162\162\072\176\000\162\162\162\162\162\174\174\377\134\134\134\162\142\362\377\134\134\126\142\134"
+                    "\162\362\162\162\162\072\176\000\162\134\134\126\142\134\162\362\162\162\162\072\176\000\162\162\162\162\162\174\174\377\134\362\162\362\162\162\162\072\176\000"
+                    "\162\362\162\162\162\174\174\377\134\134\134\162\142\362\134\162\162\162\072\176\000\000\044\162\162\162\162\174\174\377\134\362\162\162\162\134\134\134\142\162"
+                    "\072\176\000\215\215\162\162\162\174\174\174\174\072\176\000\162\162\162\162\162\162\377\053\377\377\377\134\134\134\142\134\162\162\162\162\077\162\072\176\000"
+                    "\162\162\377\377\377\377\377\377\134\134\134\142\134\162\153\153\153\153\153\153\142\134\162\162\162\162\077\162\072\176\000\162\162\377\377\377\377\377\377\134"
+                    "\134\134\142\134\162\362\162\162\162\072\176\000\162\000\001\000\000\134\077\162\072\176\000\162\162\162\162\162\162\377\053\377\377\377\134\134\134\142\134\162"
+                    "\162\162\162\077\162\072\176\000\162\362\377\377\377\377\377\377\134\134\134\142\134\162\362\162\162\364\072\176\000\162\162\162\162\162\174\174\377\134\134\134"
+                    "\162\142\362\134\162\162\162\072\176\000\215\215\162\162\162\174\174\174\174\072\176\000\162\162\162\162\162\162\377\053\377\377\377\134\134\134\142\134\162\162"
+                    "\162\162\077\162\162\162\162\377\053\377\377\377\134\134\134\142\134\162\162\162\162\077\162\072\176\000\162\162\377\377\377\377\377\377\134\134\134\162\162\072"
+                    "\176\000\162\162\162\162\162\174\174\377\134\134\134\162\142\362\377\134\134\126\142\134\162\362\162\162\162\072\176\000\174\174\377\134\362\162\362\162\162\162"
+                    "\072\176\000\162\362\162\162\162\174\174\377\134\134\134\162\142\362\134\162\162\162\072\176\000\162\362\162\162\162\134\134\134\142\134\162\162\162\162\077\173"
+                    "\153\153\153\165\000\000\000\153\151\153\153\153\153\153\153\153\153\153\153\153\153\153\153\176\000\162\362\377\377\377\377\377\377\134\134\134\142\134\162\362"
+                    "\162\162\162\072\176\162\377\053\377\377\377\134\134\134\142\134\162\162\162\162\077\162\072\176\000\162\162\377\377\377\377\377\377\134\134\134\142\134\162\362"
+                    "\162\162\162\072\176\000\162\162\162\162\162\174\174\377\134\134\134\162\142\362\377\134\134\134\167\167\167\167\167\001\100\000\002\000\000\000\000\000\000\000"
+                    "\000\153\153\067\000\000\000\153\153\300\000\000\000\000\000\000\000\000\000\000\000\000\212\377\000\000\153\153\153\153\153\153\153\060\047\047\043\047\057\153"
+                    "\000\153\153\137\377\153\153\000\134\000\000\000\153\153\343\153\153\153\060\047\047\043\047\057\157\153\153\153\162\162\077\162\072\176\000\162\134\142\134\162"
+                    "\162\162\162\077\162\072\176\000\162\162\162\162\162\162\377\053\377\377\377\134\134\134\142\134\162\162\377\377\377\167\001\100\000\377\004\002\000\000\000\000"
+                    "\000\001\000\000\134\077\162\072\176\000\162\162\162\162\162\162\377\053\377\377\377\134\134\134\142\134\162\162\162\162\077\162\072\176\000\162\362\377\377\377"
+                    "\377\377\377\134\134\134\142\134\162\362\162\162\364\072\176\000\162\162\162\162\162\174\174\377\134\134\134\162\142\362\134\162\162\162\072\176\000\215\215\162"
+                    "\162\162\174\174\174\174\072\176\000\162\162\162\162\162\162\377\053\377\377\377\134\134\134\142\134\162\162\162\162\077\162\072\176\000\162\162\377\377\377\377"
+                    "\377\377\134\134\134\162\162\072\176\000\162\162\162\162\162\174\174\377\134\134\134\162\142\362\377\134\134\126\142\134\162\362\162\162\162\072\176\000\162\162"
+                    "\162\162\162\174\174\377\134\362\162\362\162\162\162\072\176\000\162\362\162\162\162\174\174\377\134\134\134\162\142\362\134\162\162\162\072\176\000\000\044\162"
+                    "\162\162\162\174\174\377\134\362\162\162\162\134\134\134\142\162\072\176\000\215\215\162\162\162\174\174\174\174\072\176\000\162\162\162\162\162\162\377\053\377"
+                    "\377\377\134\134\134\142\134\162\162\162\162\077\162\072\176\000\162\162\377\377\377\377\377\377\134\134\134\142\134\162\153\153\153\153\153\153\142\134\162\162"
+                    "\162\162\077\162\072\176\000\162\162\377\377\377\377\377\377\134\134\134\142\134\162\362\162\162\162\072\176\000\162\000\001\000\000\134\077\162\072\176\000\162"
+                    "\162\162\162\162\162\377\053\377\377\377\134\134\134\142\134\162\162\162\162\077\162\072\176\000\162\362\377\377\377\377\377\377\134\134\134\142\134\162\362\162"
+                    "\162\364\072\176\000\162\162\162\162\162\174\174\377\134\134\134\162\142\362\134\162\162\162\072\176\000\215\215\162\162\162\174\174\174\174\072\176\000\162\162"
+                    "\162\162\162\162\377\053\377\377\377\134\134\134\142\134\162\162\162\162\077\162\072\176\000\162\162\377\377\377\377\377\377\134\134\134\162\162\072\176\000\162"
+                    "\162\162\162\162\174\174\377\134\134\134\142\134\162\362\162\162\162\072\176\000\162\162\162\162\162\174\174\377\134\362\162\172\162\134\134\134\142\162\072\162"
+                    "\162\162\162\174\174\377\134\362\162\362\162\162\162\072\176\000\162\362\162\162\162\174\174\377\134\134\134\162\142\362\134\162\162\162\072\176\000\000\044\162"
+                    "\162\162\162\174\174\377\134\362\162\162\162\134\134\134\142\162\072\176\000\215\215\162\162\162\174\174\174\174\072\176\000\162\162\162\162\162\162\377\053\377"
+                    "\377\377\134\134\134\142\134\162\162\162\162\077\162\072\176\000\162\162\377\377\377\377\377\377\134\134\134\142\134\162\153\153\153\153\153\153\142\134\162\162"
+                    "\162\162\077\162\072\176\000\162\162\377\377\377\377\377\377\134\134\134\142\134\162\362\162\162\162\072\176\000\162\000\001\000\000\134\077\162\072\176\000\162"
+                    "\162\162\162\162\162\377\053\377\377\377\134\134\134\142\134\162\162\162\162\077\162\072\176\000\162\362\377\377\377\377\377\377\134\134\134\142\134\162\362\162"
+                    "\162\364\072\176\000\162\162\162\162\162\174\174\377\134\134\134\162\142\362\134\162\162\162\072\176\000\215\215\162\162\162\174\174\174\174\072\176\000\162\162"
+                    "\162\162\162\162\377\053\377\377\377\134\134\134\142\134\162\162\162\162\077\162\162\162\162\377\053\377\377\377\134\134\134\142\134\162\162\162\162\077\162\072"
+                    "\176\000\162\162\377\377\377\377\377\377\134\134\134\162\162\072\176\000\162\162\162\162\162\174\174\377\134\134\134\162\142\362\377\134\134\126\142\134\162\362"
+                    "\162\162\162\072\176\000\174\174\377\134\362\162\362\162\162\162\072\176\000\162\362\162\162\162\174\174\377\134\134\134\162\142\362\134\162\162\162\072\176\000"
+                    "\162\362\162\162\162\134\134\134\142\134\162\162\162\162\077\173\153\153\153\165\000\000\000\153\151\153\153\153\153\153\153\153\153\153\153\153\153\153\153\176"
+                    "\000\162\362\377\377\377\377\377\377\134\134\134\142\134\162\362\162\162\162\072\176\162\377\053\377\377\377\134\134\134\142\134\162\162\162\162\077\162\072\176"
+                    "\000\162\162\377\377\377\377\377\377\134\134\134\142\134\162\362\162\162\162\072\176\000\162\162\162\162\162\174\174\377\134\134\134\162\142\362\377\134\134\134"
+                    "\167\167\167\167\167\001\100\000\002\000\000\000\000\000\000\000\000\153\153\067\000\000\000\153\153\300\000\000\000\000\000\000\000\000\000\000\000\000\212\377"
+                    "\000\000\153\153\153\153\153\153\153\060\047\047\043\047\057\153\000\153\153\137\377\153\153\000\134\000\000\000\153\153\343\153\153\153\060\047\047\043\047\057"
+                    "\157\153\153\153\162\162\077\162\072\176\000\162\134\142\134\162\162\162\162\077\162\072\176\000\162\162\162\162\162\162\377\053\377\377\377\134\134\134\142\134"
+                    "\162\162\377\377\377\167\001\100\000\377\004\002\000\000\000\000\000\001\000\000\134\077\162\072\176\000\162\162\162\162\162\162\377\053\377\377\377\134\134\134"
+                    "\142\134\162\162\162\162\077\162\072\176\000\162\362\377\377\377\377\377\377\134\134\134\142\134\162\362\162\162\364\072\176\000\162\162\162\162\162\174\174\377"
+                    "\134\134\134\162\142\362\134\162\162\162\072\176\000\215\215\162\162\162\174\174\174\174\072\176\000\162\162\162\162\162\162\377\053\377\377\377\134\134\134\142"
+                    "\134\162\162\162\162\077\162\072\176\000\162\162\377\377\377\377\377\377\134\134\134\162\162\072\176\000\162\162\162\162\162\174\174\377\134\134\134\162\142\362"
+                    "\377\134\134\126\142\134\162\362\162\162\162\072\176\000\162\162\162\162\162\174\174\377\134\362\162\362\162\162\162\072\176\000\162\362\162\162\162\174\174\377"
+                    "\134\134\134\162\142\362\134\162\162\162\072\176\000\000\044\162\162\162\162\174\174\377\134\362\162\162\162\134\134\134\142\162\072\176\000\215\215\162\162\162"
+                    "\174\174\174\174\072\176\000\162\162\162\162\162\162\377\053\377\377\377\134\134\134\142\134\162\162\162\162\077\162\072\176\000\162\162\377\377\377\377\377\377"
+                    "\134\134\134\142\134\162\153\153\153\153\153\153\142\134\162\162\162\162\077\162\072\176\000\162\162\377\377\377\377\377\377\134\134\134\142\134\162\362\162\162"
+                    "\162\072\176\000\162\000\001\000\000\134\077\162\072\176\000\162\162\162\162\162\162\377\053\377\377\377\134\134\134\142\134\162\162\162\162\077\162\072\176\000"
+                    "\162\362\377\377\377\377\377\377\134\134\134\142\134\162\362\162\162\364\072\176\000\162\162\162\162\162\174\174\377\134\134\134\162\142\362\134\162\162\162\072"
+                    "\176\000\215\215\162\162\162\174\174\174\174\072\176\000\162\162\162\162\162\162\377\053\377\377\377\134\134\134\142\134\162\162\162\162\077\162\072\176\000\162"
+                    "\162\377\377\377\377\377\377\134\134\134\162\162\072\176\000\162\162\162\162\162\174\174\377\134\134\134\142\134\162\362\162\162\162\072\176\000\162\162\162\162"
+                    "\162\174\174\377\134\362\162\172\162\134\134\134\142\162\072\176\000\215\215\162\162\162\174\174\174\171\072\176\000\162\162\162\162\162\162\377\053\377\377\377"
+                    "\134\134\134\142\134\162\162\162\162\077\162\072\176\000\162\162\377\377\377\377\377\377\134\134\134\142\134\162\362\162\162\162\072\176\000\162\362\162\162\162"
+                    "\174\174\377\134\134\134\162\142\362\134\162\162\162\072\176\000\162\362\162\162\162\134\134\142\134\162\362\162\162\162\072\176\000\044\162\162\162\162\174\174"
+                    "\377\134\362\162\162\162\134\134\134\142\162\072\176\000\215\215\162\162\162\174\174\174\174\072\176\000\162\162\162\162\162\162\377\053\377\377\377\134\134\134"
+                    "\142\134\162\162\162\162\077\162\072\176\000\162\162\377\377\377\377\377\377\134\134\134\142\134\162\362\162\162\162\072\176\000\162\162\162\162\162\174\174\377"
+                    "\134\134\134\162\142\362\134\162\162\162\072\176\000\215\215\162\162\162\174\174\174\174\134\134\134\142\134\000\153\153\153\153\153\153\153\062\047\047\043\047"
+                    "\057\262\054\377\134\134\142\153\330\153",
+                    2690, ZINT_ERROR_TOO_LONG, 1, ""
+                }, /* #300 (#10) Andre Maute */
     };
     int data_size = ARRAY_SIZE(data);
     int i, length, ret;
     struct zint_symbol *symbol = NULL;
 
+    char escaped[16834];
+    char cmp_buf[32768];
+    char cmp_msg[32768];
+
+    int do_bwipp = (debug & ZINT_DEBUG_TEST_BWIPP) && testUtilHaveGhostscript(); /* Only do BWIPP test if asked, too slow otherwise */
+    int do_zxingcpp = (debug & ZINT_DEBUG_TEST_ZXINGCPP) && testUtilHaveZXingCPPDecoder(); /* Only do ZXing-C++ test if asked, too slow otherwise */
+
     testStartSymbol("test_fuzz", &symbol);
 
     for (i = 0; i < data_size; i++) {
@@ -5339,36 +5587,54 @@ static void test_fuzz(const testCtx *const p_ctx) {
         symbol = ZBarcode_Create();
         assert_nonnull(symbol, "Symbol not created\n");
 
-        symbol->symbology = data[i].symbology;
-        if (data[i].input_mode != -1) {
-            symbol->input_mode = data[i].input_mode;
-        }
-        if (data[i].option_1 != -1) {
-            symbol->option_1 = data[i].option_1;
-        }
-        symbol->debug |= debug;
-
-        length = data[i].length;
-        if (length == -1) {
-            length = (int) strlen(data[i].data);
-        }
+        length = testUtilSetSymbol(symbol, data[i].symbology, data[i].input_mode, -1 /*eci*/, data[i].option_1, data[i].option_2, -1, -1 /*output_options*/, data[i].data, data[i].length, debug);
 
         ret = ZBarcode_Encode(symbol, (unsigned char *) data[i].data, length);
         assert_equal(ret, data[i].ret, "i:%d ZBarcode_Encode ret %d != %d (%s)\n", i, ret, data[i].ret, symbol->errtxt);
 
+        if (ret < ZINT_ERROR) {
+
+            if (do_bwipp && testUtilCanBwipp(i, symbol, data[i].option_1, data[i].option_2, -1, debug)) {
+                if (!data[i].bwipp_cmp) {
+                    if (debug & ZINT_DEBUG_TEST_PRINT) printf("i:%d %s not BWIPP compatible (%s)\n", i, testUtilBarcodeName(symbol->symbology), data[i].comment);
+                } else {
+                    char modules_dump[32768];
+                    assert_notequal(testUtilModulesDump(symbol, modules_dump, sizeof(modules_dump)), -1, "i:%d testUtilModulesDump == -1\n", i);
+                    ret = testUtilBwipp(i, symbol, data[i].option_1, data[i].option_2, -1, data[i].data, length, NULL, cmp_buf, sizeof(cmp_buf), NULL);
+                    assert_zero(ret, "i:%d %s testUtilBwipp ret %d != 0\n", i, testUtilBarcodeName(symbol->symbology), ret);
+
+                    ret = testUtilBwippCmp(symbol, cmp_msg, cmp_buf, modules_dump);
+                    assert_zero(ret, "i:%d %s testUtilBwippCmp %d != 0 %s\n  actual: %s\nexpected: %s\n",
+                                   i, testUtilBarcodeName(symbol->symbology), ret, cmp_msg, cmp_buf, modules_dump);
+                }
+            }
+            if (do_zxingcpp && testUtilCanZXingCPP(i, symbol, data[i].data, length, debug)) {
+                int cmp_len, ret_len;
+                char modules_dump[32768];
+                assert_notequal(testUtilModulesDump(symbol, modules_dump, sizeof(modules_dump)), -1, "i:%d testUtilModulesDump == -1\n", i);
+                ret = testUtilZXingCPP(i, symbol, data[i].data, length, modules_dump, cmp_buf, sizeof(cmp_buf), &cmp_len);
+                assert_zero(ret, "i:%d %s testUtilZXingCPP ret %d != 0\n", i, testUtilBarcodeName(symbol->symbology), ret);
+
+                ret = testUtilZXingCPPCmp(symbol, cmp_msg, cmp_buf, cmp_len, data[i].data, length, NULL /*primary*/, escaped, &ret_len);
+                assert_zero(ret, "i:%d %s testUtilZXingCPPCmp %d != 0 %s\n  actual: %.*s\nexpected: %.*s\n",
+                               i, testUtilBarcodeName(symbol->symbology), ret, cmp_msg, cmp_len, cmp_buf, ret_len, escaped);
+            }
+        }
+
         ZBarcode_Delete(symbol);
     }
 
     testFinish();
 }
 
-INTERNAL void pdf_numbprocess_test(int *chainemc, int *p_mclength, const unsigned char chaine[], const int start,
+
+INTERNAL void pdf_numbprocess_test(short *chainemc, int *p_mclength, const unsigned char chaine[], const int start,
                 const int length);
 
 #include "../large.h"
 
 /* Max codewords 12 */
-static int annex_d_decode_dump(int chainemc[], int mclength, unsigned char *chaine, int length, char *buf1, char *buf2) {
+static int annex_d_decode_dump(short chainemc[], int mclength, unsigned char *chaine, int length, char *buf1, char *buf2) {
     static const large_uint pow900s[] = {
         { 0x1, 0 }, /*1*/
         { 0x384, 0 }, /*900*/
@@ -5494,7 +5760,7 @@ static void test_numbprocess(const testCtx *const p_ctx) {
     int data_size = ARRAY_SIZE(data);
     int i, length;
 
-    int chainemc[32];
+    short chainemc[32];
     int mclength;
 
     testStart("test_numbprocess");
diff --git a/backend/tests/tools/run_bwipp_tests.sh b/backend/tests/tools/run_bwipp_tests.sh
index dcf4ae03..421fef6e 100755
--- a/backend/tests/tools/run_bwipp_tests.sh
+++ b/backend/tests/tools/run_bwipp_tests.sh
@@ -22,6 +22,7 @@ run_bwipp_test "test_bc412"
 run_bwipp_test "test_channel" "encode"
 run_bwipp_test "test_codablock" "input"
 run_bwipp_test "test_codablock" "encode"
+run_bwipp_test "test_codablock" "fuzz"
 run_bwipp_test "test_code" "encode"
 run_bwipp_test "test_code1" "encode"
 run_bwipp_test "test_code1" "encode_segs"
@@ -51,6 +52,7 @@ run_bwipp_test "test_medical" "encode"
 run_bwipp_test "test_pdf417" "input"
 run_bwipp_test "test_pdf417" "encode"
 run_bwipp_test "test_pdf417" "encode_segs"
+run_bwipp_test "test_pdf417" "fuzz"
 run_bwipp_test "test_plessey" "encode"
 run_bwipp_test "test_postal" "input"
 run_bwipp_test "test_postal" "encode"
diff --git a/backend/tests/tools/run_zxingcpp_tests.sh b/backend/tests/tools/run_zxingcpp_tests.sh
index 8cb4f6ce..039484d0 100755
--- a/backend/tests/tools/run_zxingcpp_tests.sh
+++ b/backend/tests/tools/run_zxingcpp_tests.sh
@@ -20,6 +20,7 @@ run_zxingcpp_test "test_aztec" "encode_segs"
 run_zxingcpp_test "test_aztec" "fuzz"
 run_zxingcpp_test "test_codablock" "input"
 run_zxingcpp_test "test_codablock" "encode"
+run_zxingcpp_test "test_codablock" "fuzz"
 run_zxingcpp_test "test_code" "encode"
 run_zxingcpp_test "test_code128" "input"
 run_zxingcpp_test "test_code128" "encode"
@@ -43,6 +44,7 @@ run_zxingcpp_test "test_pdf417" "reader_init"
 run_zxingcpp_test "test_pdf417" "input"
 run_zxingcpp_test "test_pdf417" "encode"
 run_zxingcpp_test "test_pdf417" "encode_segs"
+run_zxingcpp_test "test_pdf417" "fuzz"
 run_zxingcpp_test "test_qr"
 run_zxingcpp_test "test_rss" "binary_div_modulo_divisor"
 run_zxingcpp_test "test_rss" "examples"