/* * Copyright (C) 2017 The Android Open Source Project * * 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. */ #define _GNU_SOURCE #include <stdio.h> #include <stdlib.h> #include <string.h> #include <unistd.h> #include <errno.h> #include <asm/ioctl.h> #include <sys/types.h> #include <sys/wait.h> #include <fcntl.h> int test_touch_fwu(){ char* dev_name = "/dev/touch_fwu"; int fd = open(dev_name, O_RDWR); if (fd < 0) { return -1; } size_t buf_len = 0xfffff; char* buf = (char*) malloc(buf_len); if (buf == NULL ) { return -1; } int ret = 0; ret = write(fd, buf, buf_len); free(buf); return ret; } int main() { test_touch_fwu(); return 0; }