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76 lines
1.8 KiB
C
76 lines
1.8 KiB
C
/*
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american fuzzy lop++ - a trivial program to test the build
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--------------------------------------------------------
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Originally written by Michal Zalewski
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Copyright 2014 Google Inc. All rights reserved.
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Copyright 2019-2024 AFLplusplus Project. All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at:
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http://www.apache.org/licenses/LICENSE-2.0
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <limits.h>
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__AFL_FUZZ_INIT();
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/* To ensure checks are not optimized out it is recommended to disable
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code optimization for the fuzzer harness main() */
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#pragma clang optimize off
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#pragma GCC optimize("O0")
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int main(int argc, char **argv) {
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__AFL_INIT();
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unsigned char *buf = __AFL_FUZZ_TESTCASE_BUF;
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while (__AFL_LOOP(UINT_MAX)) { // if you have 100% stability
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unsigned int len = __AFL_FUZZ_TESTCASE_LEN;
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#ifdef _AFL_DOCUMENT_MUTATIONS
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static unsigned int counter = 0;
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char fn[32];
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sprintf(fn, "%09u:test-instr", counter);
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int fd_doc = open(fn, O_WRONLY | O_CREAT | O_TRUNC, 0600);
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if (fd_doc >= 0) {
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if (write(fd_doc, buf, len) != __afl_fuzz_len) {
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fprintf(stderr, "write of mutation file failed: %s\n", fn);
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unlink(fn);
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}
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close(fd_doc);
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}
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counter++;
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#endif
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// fprintf(stderr, "len: %u\n", len);
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if (!len) continue;
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if (buf[0] == '0')
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printf("Looks like a zero to me!\n");
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else if (buf[0] == '1')
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printf("Pretty sure that is a one!\n");
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else
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printf("Neither one or zero? How quaint!\n");
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}
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return 0;
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}
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