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02325168ca
* fuzz/Makefile.am: Add wget_url_fuzzer * fuzz/wget_url_fuzzer.c: New fuzzer * fuzz/wget_url_fuzzer.in: Initial corpora
111 lines
2.3 KiB
C
111 lines
2.3 KiB
C
/*
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* Copyright(c) 2017-2018 Free Software Foundation, Inc.
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*
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* This file is part of GNU Wget.
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*
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* GNU Wget is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* GNU Wget is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Wget. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include <config.h>
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#include <sys/types.h>
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#include <stdint.h> // uint8_t
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#include <stdio.h> // fmemopen
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#include <string.h> // strncmp
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#include <stdlib.h> // free
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#include <unistd.h> // close
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#include "wget.h"
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#undef fopen_wgetrc
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "url.h"
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// declarations for wget internal functions
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int main_wget(int argc, const char **argv);
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void cleanup(void);
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FILE *fopen_wget(const char *pathname, const char *mode);
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FILE *fopen_wgetrc(const char *pathname, const char *mode);
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void exit_wget(int status);
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#ifdef __cplusplus
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}
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#endif
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#include "fuzzer.h"
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FILE *fopen_wget(const char *pathname, const char *mode)
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{
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return fopen("/dev/null", mode);
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}
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FILE *fopen_wgetrc(const char *pathname, const char *mode)
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{
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return NULL;
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}
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#ifdef FUZZING
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void exit_wget(int status)
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{
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}
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#else
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void exit(int status)
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{
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}
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#endif
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int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
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{
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FILE *bak;
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struct url *url;
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struct iri iri;
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char *in;
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if (size > 4096) // same as max_len = ... in .options file
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return 0;
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bak = stderr;
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stderr = fopen("/dev/null", "w");
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in = (char *) malloc(size + 1);
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memcpy(in, data, size);
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in[size] = 0;
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iri.uri_encoding = (char *) "iso-8859-1";
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iri.orig_url = NULL;
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iri.utf8_encode = 0;
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url = url_parse(in, NULL, &iri, 0);
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url_free(url);
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url = url_parse(in, NULL, &iri, 1);
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url_free(url);
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iri.utf8_encode = 1;
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url = url_parse(in, NULL, &iri, 0);
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url_free(url);
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url = url_parse(in, NULL, &iri, 1);
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url_free(url);
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free(iri.orig_url);
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free(in);
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fclose(stderr);
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stderr = bak;
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return 0;
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}
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