/*

 * Fuzztest for `cupsRasterReadHeader2`.

 *

 * Copyright © 2024 by OpenPrinting.

 *

 * Licensed under Apache License v2.0.  See the file "LICENSE" for more

 * information.

 */

#include <cups/raster-private.h>

/* I'm aware that the maximum size is 20KB.*/

#define kMinInputLength 2

#define kMaxInputLength 20480

void load_res(char *file);

extern int

LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)

{

    FILE  *fp;

    char  file_name[256];

    if (size < kMinInputLength || size > kMaxInputLength) {

      return 0;

    }

    sprintf(file_name, "/tmp/libfuzzer.%d", getpid());

    fp = fopen(file_name, "w");

    if (fp == NULL) {

        return 0;

    }

    fwrite(data, sizeof(char), size, fp);

    fclose(fp);

    load_res(file_name);

    unlink(file_name);

    return 0;

}

void load_res(char *file)

{

    int                  fd;

    cups_raster_t        *ras;

    cups_page_header2_t  header;

    fd = open(file, O_RDONLY);

    if (fd < 0) {

        return;

    }

    ras = cupsRasterOpen(fd, CUPS_RASTER_READ);

    if(ras == NULL) {

        close(fd);

        return;

    }

    cupsRasterReadHeader2(ras, &header);

    cupsRasterClose(ras);

    close(fd);

}