#include <stdlib.h>

#include <string.h>

#include <sys/types.h>

#include <sndfile.h>

#include <inttypes.h>

#include "sndfile_fuzz_header.h"

extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)

{   // One byte is needed for deciding which function to target.

    if (size == 0)

       return 0 ;

    const uint8_t decider = *data ;

    data += 1 ;

    size -= 1 ;

    SF_INFO sndfile_info ;

    VIO_DATA vio_data ;

    SF_VIRTUAL_IO vio ;

    SNDFILE *sndfile = NULL ;

    int err = sf_init_file(data, size, &sndfile, &vio_data, &vio, &sndfile_info) ;

    if (err)

      goto EXIT_LABEL ;

    // Just the right number of channels. Create some buffer space for reading.

    switch (decider % 3)

    {   case 0  :

                {

                  short* read_buffer = NULL ;

                  read_buffer = (short*)malloc(sizeof(short) * size);

                  if (read_buffer == NULL)

                    abort() ;

                  while (sf_read_short(sndfile, read_buffer, size))

                  {

                    // Do nothing with the data.

                  }

                  free(read_buffer) ;

                }

                break ;

        case 1  :

                {

                  int* read_buffer = NULL ;

                  read_buffer = (int*)malloc(sizeof(int) * size) ;

                  if (read_buffer == NULL)

                    abort() ;

                  while (sf_read_int(sndfile, read_buffer, size))

                  {

                    // Do nothing with the data.

                  }

                  free(read_buffer) ;

                }

                break ;

        case 2  :

                {

                  double* read_buffer = NULL ;

                  read_buffer = (double*)malloc(sizeof(double) * size) ;

                  if (read_buffer == NULL)

                    abort() ;

                  while (sf_read_double(sndfile, read_buffer, size))

                  {

                    // Do nothing with the data.

                  }

                  free(read_buffer) ;

                }

                break ;

        default :

                break ;

                } ;

  EXIT_LABEL:

    if (sndfile != NULL)

      sf_close(sndfile);

    return 0 ;

}