/*

We're testing that reading corrupt TIFF files doesn't cause any memory issues,

and that the operation gracefully fails (i.e. gdImageCreateFromTiffPtr() returns

NULL).

*/

#include "gd.h"

#include "gdtest.h"

static void check_file(char *basename);

static size_t read_test_file(char **buffer, char *basename);

int main()

{

    check_file("tiff_invalid_read_1.tiff");

    check_file("tiff_invalid_read_2.tiff");

    check_file("tiff_invalid_read_3.tiff");

    return gdNumFailures();

}

static void check_file(char *basename)

{

    gdImagePtr im;

    char *buffer;

    size_t size;

    size = read_test_file(&buffer, basename);

    im = gdImageCreateFromTiffPtr(size, (void *) buffer);

    gdTestAssert(im == NULL);

    free(buffer);

}

static size_t read_test_file(char **buffer, char *basename)

{

    char *filename;

    FILE *fp;

    size_t exp_size, act_size;

    filename = gdTestFilePath2("tiff", basename);

    fp = fopen(filename, "rb");

    gdTestAssert(fp != NULL);

	fseek(fp, 0, SEEK_END);

	exp_size = ftell(fp);

	fseek(fp, 0, SEEK_SET);

    *buffer = malloc(exp_size);

    gdTestAssert(*buffer != NULL);

    act_size = fread(*buffer, sizeof(**buffer), exp_size, fp);

    gdTestAssert(act_size == exp_size);

    fclose(fp);

    free(filename);

    return act_size;

}