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EANX_CC/UPCA_CC: fix crash in dbar_date() on not checking length

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in `cc_binary_string()`, ticket #300 (#5 & #6), props Andre Maute;
  add other checks for length on processing encoding mode
PDF417: fix out-of-bounds crash on overrunning string and codeword
  buffers by tripling size (convert to `short` instead of `int` to
  guard against too much stack), ticket #300 (#7 & #10), props Andre
  Maute; (TODO: add some checks instead to bail out earlier?)
CODEONE: fix looping on latch crash in `c1_encode()`, ticket #300 (#8),
  props Andre Maute
CODABLOCKF: fix crash on negative overflow of `columns` (`option_2`),
  ticket #300 (#9), props Andre Maute
library: add `debug_print_escape()` helper for ZINT_DEBUG_PRINT
This commit is contained in:
gitlost 2023-11-27 12:55:53 +00:00
parent 77c1ef1139
commit a14fe77aa0
17 changed files with 561 additions and 193 deletions
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18
backend/common.c
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@ -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;