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/*
* Copyright 2023 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 "config.h"
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define LIBSSH_STATIC 1
#include "libssh/libssh.h"
#include "libssh/misc.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;
char *filename = NULL;
int fd;
int rc;
ssize_t sz;
filename = strdup("/tmp/libssh_pubkey_XXXXXX");
if (filename == NULL) {
return -1;
}
fd = mkstemp(filename);
if (fd == -1) {
free(filename);
close(fd);
return -1;
}
sz = ssh_writen(fd, data, size);
close(fd);
if (sz == SSH_ERROR) {
unlink(filename);
free(filename);
return -1;
}
assert(nalloc_start(data, size) > 0);
rc = ssh_pki_import_pubkey_file(filename, &pkey);
if (rc != SSH_OK) {
goto out;
}
ssh_key_free(pkey);
out:
unlink(filename);
free(filename);
nalloc_end();
return 0;
}
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