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Avoid SIGSEGV on Code 128 input too long

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This commit is contained in:
Robin Stuart 2017-07-26 11:44:47 +01:00
parent 24f175b6f6
commit e81a90bb58
1 changed files with 9 additions and 11 deletions
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20
backend/library.c
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@ -809,7 +809,7 @@ static int reduced_charset(struct zint_symbol *symbol, const unsigned char *sour
case BARCODE_CODABLOCKF: error_number = codablock(symbol, preprocessed, in_length);
break;
}
return error_number;
}
@ -1060,18 +1060,16 @@ int ZBarcode_Encode(struct zint_symbol *symbol, const unsigned char *source,int
}
if ((symbol->symbology == BARCODE_CODE128) || (symbol->symbology == BARCODE_CODE128B)) {
for (i = 0; i < in_length; i++) {
if (local_source[i] == '\0') {
symbol->text[i] = ' ';
} else {
symbol->text[i] = local_source[i];
if (error_number == 0) {
if ((symbol->symbology == BARCODE_CODE128) || (symbol->symbology == BARCODE_CODE128B)) {
for (i = 0; i < in_length; i++) {
if (local_source[i] == '\0') {
symbol->text[i] = ' ';
} else {
symbol->text[i] = local_source[i];
}
}
}
}
if (error_number == 0) {
error_number = error_buffer;
}
error_tag(symbol->errtxt, error_number);