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Fix MAX_DATA_SIZE, in case 16 symbols are needed by structured appending #186

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Fix MAX_DATA_SIZE, in case 16 symbols are needed by structured appending #186

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3 changes: 2 additions & 1 deletion qrenc.c
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Original file line number Diff line number Diff line change
Expand Up @@ -32,6 +32,7 @@
#endif

#include "qrencode.h"
#include "qrinput.h"

#define INCHES_PER_METER (100.0/2.54)

Expand Down Expand Up @@ -237,7 +238,7 @@ static int color_set(unsigned char color[4], const char *value)
return 0;
}

#define MAX_DATA_SIZE (7090 * 2) /* timed by the safty factor 2 */
#define MAX_DATA_SIZE (7089 * MAX_STRUCTURED_SYMBOLS + 1) /* an upper bound (cf. the specification) */
static unsigned char data_buffer[MAX_DATA_SIZE];
static unsigned char *readFile(FILE *fp, int *length)
{
Expand Down