#include <stdio.h>

#include <stdlib.h>

#include <stdint.h>

#include <stdarg.h>

#include <string.h>

#include "geos_c.h"

static FILE * flogOut;

static GEOSGeoJSONReader *reader;

void

notice(const char *fmt, ...) {

    va_list ap;

    fprintf( flogOut, "NOTICE: ");

    va_start (ap, fmt);

    vfprintf( flogOut, fmt, ap);

    va_end(ap);

    fprintf( flogOut, "\n" );

}

void

log_and_exit(const char *fmt, ...) {

    va_list ap;

    fprintf( flogOut, "ERROR: ");

    va_start (ap, fmt);

    vfprintf( flogOut, fmt, ap);

    va_end(ap);

    fprintf( flogOut, "\n" );

}

int LLVMFuzzerInitialize(int *argc, char ***argv) {

    (void)argc; (void)argv;

    flogOut = fopen("/dev/null", "wb");

    initGEOS(notice, log_and_exit);

    reader = GEOSGeoJSONReader_create();

    return 0;

}

int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {

    if (reader == NULL) {

        return 0;

    }

    char *json = (char *) malloc(Size + 1);

    if (json == NULL) {

        return 0;

    }

    memcpy(json, Data, Size);

    json[Size] = '\0';

    GEOSGeometry *g = GEOSGeoJSONReader_readGeometry(reader, json);

    if (g != NULL) {

        GEOSGeom_destroy(g);

    }

    free(json);

    return 0;

}