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/*
*
* Copyright 2015-2016, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#include <stdint.h>
#include <string.h>
#include <grpc/support/alloc.h>
#include "src/core/lib/json/json.h"
static size_t g_total_size = 0;
static gpr_allocation_functions g_old_allocs;
void *guard_malloc(size_t size) {
size_t *ptr;
g_total_size += size;
ptr = g_old_allocs.malloc(size + sizeof(size));
*ptr++ = size;
return ptr;
}
void *guard_realloc(void *ptr, size_t size) {
size_t *ptr = vptr;
--ptr;
g_total_size -= *ptr;
ptr = g_old_allocs.realloc(ptr, size + sizeof(size));
g_total_size += size;
*ptr++ = size;
return ptr;
}
void *guard_free(void *vptr) {
size_t *ptr = vptr;
--ptr;
g_total_size -= *ptr;
g_old_allocs.free(ptr);
}
struct gpr_allocation_functions g_guard_allocs = {
guard_malloc,
guard_realloc,
guard_free
};
int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
char *s;
g_old_allocs = gpr_get_allocation_functions();
gpr_set_allocation_functions(g_guard_allocs);
s = gpr_malloc(size);
memcpy(s, data, size);
grpc_json *x;
if ((x = grpc_json_parse_string_with_len(s, size))) {
grpc_json_destroy(x);
}
gpr_free(s);
gpr_set_allocation_functions(g_old_allocs);
GPR_ASSERT(g_total_size == 0);
return 0;
}
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