xref: /openssl/fuzz/punycode.c (revision 8aa82b33)
1 /*
2  * Copyright 2022 The OpenSSL Project Authors. All Rights Reserved.
3  *
4  * Licensed under the Apache License 2.0 (the "License").  You may not use
5  * this file except in compliance with the License.  You can obtain a copy
6  * in the file LICENSE in the source distribution or at
7  * https://www.openssl.org/source/license.html
8  */
9 
10 #include "crypto/punycode.h"
11 #include "internal/nelem.h"
12 #include <openssl/crypto.h>
13 #include "fuzzer.h"
14 
15 #include <stdio.h>
16 #include <string.h>
17 
FuzzerInitialize(int * argc,char *** argv)18 int FuzzerInitialize(int *argc, char ***argv)
19 {
20     return 1;
21 }
22 
FuzzerTestOneInput(const uint8_t * buf,size_t len)23 int FuzzerTestOneInput(const uint8_t *buf, size_t len)
24 {
25     char *b;
26     unsigned int out[16], outlen = OSSL_NELEM(out);
27     char outc[16];
28 
29     b = OPENSSL_malloc(len + 1);
30     if (b != NULL) {
31         ossl_punycode_decode((const char *)buf, len, out, &outlen);
32         memcpy(b, buf, len);
33         b[len] = '\0';
34         ossl_a2ulabel(b, outc, sizeof(outc));
35         OPENSSL_free(b);
36     }
37     return 0;
38 }
39 
FuzzerCleanup(void)40 void FuzzerCleanup(void)
41 {
42 }
43