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Fix memory leak in PostScript

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Also match ZBarcode_Encode prototype with definition
Fixes thanks to Alex Haley <ahaley42@sf>, Ref ticket #33
This commit is contained in:
Robin Stuart 2016-09-13 21:30:19 +01:00
parent 343b3b873e
commit b49f3f0255
2 changed files with 37 additions and 18 deletions
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36
backend/library.c
View File

@ -786,17 +786,17 @@ static int reduced_charset(struct zint_symbol *symbol, const unsigned char *sour
return error_number;
}
int ZBarcode_Encode(struct zint_symbol *symbol, unsigned char *source, int in_length) {
int ZBarcode_Encode(struct zint_symbol *symbol, unsigned char *source, int length) {
int error_number, error_buffer, i;
#ifdef _MSC_VER
unsigned char* local_source;
#endif
error_number = 0;
if (in_length == 0) {
in_length = (int) ustrlen(source);
if (length == 0) {
length = (int) ustrlen(source);
}
if (in_length == 0) {
if (length == 0) {
strcpy(symbol->errtxt, "No input data");
error_tag(symbol->errtxt, ZINT_ERROR_INVALID_DATA);
return ZINT_ERROR_INVALID_DATA;
@ -810,9 +810,9 @@ int ZBarcode_Encode(struct zint_symbol *symbol, unsigned char *source, int in_le
#endif
}
#ifndef _MSC_VER
unsigned char local_source[in_length + 1];
unsigned char local_source[length + 1];
#else
local_source = (unsigned char*) _alloca(in_length + 1);
local_source = (unsigned char*) _alloca(length + 1);
#endif
/* First check the symbology field */
@ -965,25 +965,25 @@ int ZBarcode_Encode(struct zint_symbol *symbol, unsigned char *source, int in_le
}
if (symbol->input_mode == GS1_MODE) {
for (i = 0; i < in_length; i++) {
for (i = 0; i < length; i++) {
if (source[i] == '\0') {
strcpy(symbol->errtxt, "NULL characters not permitted in GS1 mode");
return ZINT_ERROR_INVALID_DATA;
}
}
if (gs1_compliant(symbol->symbology) == 1) {
error_number = ugs1_verify(symbol, source, in_length, local_source);
error_number = ugs1_verify(symbol, source, length, local_source);
if (error_number != 0) {
return error_number;
}
in_length = ustrlen(local_source);
length = ustrlen(local_source);
} else {
strcpy(symbol->errtxt, "Selected symbology does not support GS1 mode");
return ZINT_ERROR_INVALID_OPTION;
}
} else {
memcpy(local_source, source, in_length);
local_source[in_length] = '\0';
memcpy(local_source, source, length);
local_source[length] = '\0';
}
switch (symbol->symbology) {
@ -991,17 +991,17 @@ int ZBarcode_Encode(struct zint_symbol *symbol, unsigned char *source, int in_le
case BARCODE_MICROQR:
case BARCODE_GRIDMATRIX:
case BARCODE_HANXIN:
error_number = extended_charset(symbol, local_source, in_length);
error_number = extended_charset(symbol, local_source, length);
break;
default:
error_number = reduced_charset(symbol, local_source, in_length);
error_number = reduced_charset(symbol, local_source, length);
break;
}
if ((error_number == ZINT_ERROR_INVALID_DATA) && (supports_eci(symbol->symbology)
&& (symbol->input_mode == UNICODE_MODE))) {
/* Try another ECI mode */
symbol->eci = get_best_eci(local_source, in_length);
symbol->eci = get_best_eci(local_source, length);
if (symbol->eci >= 3) {
@ -1012,18 +1012,18 @@ int ZBarcode_Encode(struct zint_symbol *symbol, unsigned char *source, int in_le
case BARCODE_MICROQR:
case BARCODE_GRIDMATRIX:
case BARCODE_HANXIN:
error_number = utf_to_eci(symbol->eci, source, local_source, &in_length);
error_number = extended_charset(symbol, local_source, in_length);
error_number = utf_to_eci(symbol->eci, source, local_source, &length);
error_number = extended_charset(symbol, local_source, length);
break;
default:
error_number = reduced_charset(symbol, local_source, in_length);
error_number = reduced_charset(symbol, local_source, length);
break;
}
}
}
if ((symbol->symbology == BARCODE_CODE128) || (symbol->symbology == BARCODE_CODE128B)) {
for (i = 0; i < in_length; i++) {
for (i = 0; i < length; i++) {
if (local_source[i] == '\0') {
symbol->text[i] = ' ';
} else {

19
backend/ps.c
View File

@ -106,6 +106,9 @@ int ps_plot(struct zint_symbol *symbol) {
}
if (feps == NULL) {
strcpy(symbol->errtxt, "Could not open output file");
#ifdef _MSC_VER
free(local_text);
#endif
return ZINT_ERROR_FILE_ACCESS;
}
@ -116,23 +119,35 @@ int ps_plot(struct zint_symbol *symbol) {
if (strlen(symbol->fgcolour) != 6) {
strcpy(symbol->errtxt, "Malformed foreground colour target");
fclose(feps);
#ifdef _MSC_VER
free(local_text);
#endif
return ZINT_ERROR_INVALID_OPTION;
}
if (strlen(symbol->bgcolour) != 6) {
strcpy(symbol->errtxt, "Malformed background colour target");
fclose(feps);
#ifdef _MSC_VER
free(local_text);
#endif
return ZINT_ERROR_INVALID_OPTION;
}
error_number = is_sane(SSET, (unsigned char*) symbol->fgcolour, strlen(symbol->fgcolour));
if (error_number == ZINT_ERROR_INVALID_DATA) {
strcpy(symbol->errtxt, "Malformed foreground colour target");
fclose(feps);
#ifdef _MSC_VER
free(local_text);
#endif
return ZINT_ERROR_INVALID_OPTION;
}
error_number = is_sane(SSET, (unsigned char*) symbol->bgcolour, strlen(symbol->bgcolour));
if (error_number == ZINT_ERROR_INVALID_DATA) {
strcpy(symbol->errtxt, "Malformed background colour target");
fclose(feps);
#ifdef _MSC_VER
free(local_text);
#endif
return ZINT_ERROR_INVALID_OPTION;
}
locale = setlocale(LC_ALL, "C");
@ -951,5 +966,9 @@ int ps_plot(struct zint_symbol *symbol) {
if (locale)
setlocale(LC_ALL, locale);
#ifdef _MSC_VER
free(local_text);
#endif
return error_number;
}