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100 lines
3.2 KiB
100 lines
3.2 KiB
/*
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* Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
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* Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this list of
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* conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice, this list
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* of conditions and the following disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its contributors may be used
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* to endorse or promote products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <unistd.h>
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#include <sys/wait.h>
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#ifdef LOSCFG_QUICK_START
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/mman.h>
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#include <fcntl.h>
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#include <sys/ioctl.h>
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#define QUICKSTART_IOC_MAGIC 'T'
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#define QUICKSTART_INITSTEP2 _IO(QUICKSTART_IOC_MAGIC, 0)
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#define WAIT_FOR_SAMPLE 300000 // wait 300ms for sample
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#endif
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int main(int argc, char * const *argv)
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{
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(void)argv;
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int ret;
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pid_t gid;
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const char *shellPath = "/bin/mksh";
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#ifdef LOSCFG_QUICK_START
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const char *samplePath = "/dev/shm/sample_quickstart";
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ret = fork();
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if (ret < 0) {
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printf("Failed to fork for sample_quickstart\n");
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} else if (ret == 0) {
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(void)execve(samplePath, NULL, NULL);
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exit(0);
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}
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usleep(WAIT_FOR_SAMPLE);
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int fd = open("/dev/quickstart", O_RDONLY);
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if (fd != -1) {
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ioctl(fd, QUICKSTART_INITSTEP2);
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close(fd);
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}
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#endif
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ret = fork();
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if (ret < 0) {
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printf("Failed to fork for shell\n");
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} else if (ret == 0) {
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gid = getpgrp();
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if (gid < 0) {
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printf("get group id failed, pgrpid %d, errno %d\n", gid, errno);
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exit(0);
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}
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ret = tcsetpgrp(STDIN_FILENO, gid);
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if (ret != 0) {
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printf("tcsetpgrp failed, errno %d\n", errno);
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exit(0);
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}
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(void)execve(shellPath, NULL, NULL);
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exit(0);
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}
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while (1) {
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ret = waitpid(-1, 0, WNOHANG);
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if (ret == 0) {
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sleep(1);
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}
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};
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}
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