Files
wget2/fuzz/libwget_utils_fuzzer.c
2024-01-07 12:41:02 +01:00

128 lines
3.5 KiB
C

/*
* Copyright (c) 2017-2024 Free Software Foundation, Inc.
*
* This file is part of libwget.
*
* Libwget is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Libwget 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with libwget. If not, see <https://www.gnu.org/licenses/>.
*/
#include <config.h>
#include <assert.h> // assert
#include <stdlib.h> // malloc, free
#include <string.h> // memcpy
// #include <unistd.h> // chroot
#include "wget.h"
#include "fuzzer.h"
int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
{
char dst1[1];
char dst2[2];
char dst3[3];
char dst4[4];
char dst5[8];
char *dst = (char *) malloc(size * 2 + 1);
char *data0 = (char *) malloc(size + 1);
int x = 0; // avoid pure functions to be optimized away
assert(dst != NULL);
assert(data0 != NULL);
// 0-terminate data
memcpy(data0, data, size);
data0[size] = 0;
// some test for code coverage
x += wget_strcmp(NULL, "");
x += wget_strcmp("", NULL);
x += wget_strcmp(NULL, NULL);
x += wget_strcmp(data0, data0);
x += wget_strncmp(NULL, "", 0);
x += wget_strncmp("", NULL, 0);
x += wget_strncmp(NULL, NULL, 0);
x += wget_strncmp((char *) data, (char *) data, size);
x += wget_strcasecmp(NULL, "");
x += wget_strcasecmp("", NULL);
x += wget_strcasecmp(NULL, NULL);
x += wget_strcasecmp(data0, data0);
x += wget_strncasecmp(NULL, "", 0);
x += wget_strncasecmp("", NULL, 0);
x += wget_strncasecmp(NULL, NULL, 0);
x += wget_strncasecmp((char *) data, (char *) data, size);
x += wget_strcasecmp_ascii(NULL, "");
x += wget_strcasecmp_ascii("", NULL);
x += wget_strcasecmp_ascii(NULL, NULL);
x += wget_strcasecmp_ascii(data0, data0);
x += wget_strncasecmp_ascii(NULL, "", 0);
x += wget_strncasecmp_ascii("", NULL, 0);
x += wget_strncasecmp_ascii(NULL, NULL, 0);
x += wget_strncasecmp_ascii((char *) data, (char *) data, size);
wget_strtolower(NULL);
wget_strtolower(data0);
memcpy(data0, (char *) data, size); // restore
wget_millisleep(-1);
wget_get_timemillis();
wget_percent_unescape(data0);
memcpy(data0, data, size); // restore
x += wget_match_tail(data0, data0);
x += wget_match_tail("", data0);
x += wget_match_tail(data0, "");
x += wget_match_tail_nocase(data0, data0);
x += wget_match_tail_nocase("", data0);
x += wget_match_tail_nocase(data0, "");
// if (chroot(".") == 0) {
char *p;
if ((p = wget_strnglob("*", 1, 0)))
wget_free(p);
// } else
// printf("Failed to chroot\n");
if (size < 31) {
char buf[16];
x += !!wget_human_readable(dst1, sizeof(dst1), (1 << size) - 1);
x += !!wget_human_readable(buf, sizeof(buf), (1 << size) - 1);
}
(void) x; // needed to get rid of bug reported by scan-build
int w, h;
wget_get_screen_size(&w, &h);
wget_memtohex(NULL, 0, NULL, 0);
wget_memtohex(data, size, dst1, sizeof(dst1));
wget_memtohex(data, size, dst2, sizeof(dst2));
wget_memtohex(data, size, dst3, sizeof(dst3));
wget_memtohex(data, size, dst4, sizeof(dst4));
wget_memtohex(data, size, dst5, sizeof(dst5));
wget_memtohex(data, size, dst, size * 2 + 1);
free(data0);
free(dst);
return 0;
}