mirror of
https://github.com/reactos/syzkaller.git
synced 2024-11-23 11:29:46 +00:00
42 lines
1.4 KiB
C
42 lines
1.4 KiB
C
// Copyright 2017 syzkaller project authors. All rights reserved.
|
|
// Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file.
|
|
|
|
#include <errno.h>
|
|
#include <pthread.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <zircon/syscalls.h>
|
|
|
|
#include "nocover.h"
|
|
|
|
static void os_init(int argc, char** argv, void* data, size_t data_size)
|
|
{
|
|
zx_status_t status = syz_mmap((size_t)data, data_size);
|
|
if (status != ZX_OK)
|
|
fail("mmap of data segment failed with: %d", status);
|
|
}
|
|
|
|
static intptr_t execute_syscall(const call_t* c, intptr_t a[kMaxArgs])
|
|
{
|
|
intptr_t res = c->call(a[0], a[1], a[2], a[3], a[4], a[5], a[6], a[7], a[8]);
|
|
if (strncmp(c->name, "zx_", 3) == 0) {
|
|
// Convert zircon error convention to the libc convention that executor expects.
|
|
// The following calls return arbitrary integers instead of error codes.
|
|
if (res == ZX_OK ||
|
|
!strcmp(c->name, "zx_debuglog_read") ||
|
|
!strcmp(c->name, "zx_clock_get") ||
|
|
!strcmp(c->name, "zx_clock_get_monotonic") ||
|
|
!strcmp(c->name, "zx_deadline_after") ||
|
|
!strcmp(c->name, "zx_ticks_get"))
|
|
return 0;
|
|
errno = (-res) & 0x7f;
|
|
return -1;
|
|
}
|
|
// We cast libc functions to signature returning intptr_t,
|
|
// as the result int -1 is returned as 0x00000000ffffffff rather than full -1.
|
|
if (res == 0xffffffff)
|
|
res = (intptr_t)-1;
|
|
return res;
|
|
}
|