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/*
* Copyright 2025 Jakub Jelen <jjelen@redhat.com>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define LIBSSH_STATIC 1
#include "libssh/libssh.h"
#include "nallocinc.c"
static void _fuzz_finalize(void)
{
ssh_finalize();
}
int LLVMFuzzerInitialize(int *argc, char ***argv)
{
(void)argc;
nalloc_init(*argv[0]);
ssh_init();
atexit(_fuzz_finalize);
return 0;
}
int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
{
ssh_key pkey = NULL;
const char input[] = "badc0de";
const char namespace[] = "namespace";
char *signature = NULL;
int rc;
assert(nalloc_start(data, size) > 0);
signature = (char *)malloc(size + 1);
if (signature == NULL) {
goto out;
}
strncpy(signature, (const char *)data, size);
signature[size] = '\0';
rc = sshsig_verify(input, sizeof(input), signature, namespace, &pkey);
free(signature);
if (rc != SSH_OK) {
goto out;
}
ssh_key_free(pkey);
out:
nalloc_end();
return 0;
}
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