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/*
IGraph library.
Copyright (C) 2021 The igraph development team
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA
*/
#include <stdint.h>
#include <string.h>
#include <stdlib.h>
#include "igraph.h"
#include <stdio.h>
extern "C"
int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size){
if(size<5) return 0;
igraph_set_error_handler(igraph_error_handler_ignore);
// Create input file
char filename[256];
sprintf(filename, "/tmp/libfuzzer.gml");
FILE *fp = fopen(filename, "wb");
if (!fp) return 0;
fwrite(data, size, 1, fp);
fclose(fp);
// Read input file
FILE *ifile;
ifile = fopen("/tmp/libfuzzer.gml", "r");
if(ifile == 0){
remove(filename);
return 0;
}
// Do the fuzzing
igraph_t g;
if (igraph_read_graph_gml(&g, ifile) == IGRAPH_SUCCESS) {
// Clean up
igraph_destroy(&g);
}
// no need to call igraph_destroy() if igraph_raed_graph_gml() returns an
// error code as we don't have a valid graph object in that case
fclose(ifile);
remove(filename);
return 0;
}
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