linux 程序调用system执行命令

int exeCmd(const char *cmd) {
pid_t status;

status = system(cmd);

if (-1 == status)
{
WriteLog("system error!");
}
else
{
WriteLog("exit status value = [0x%x]\n", status);

if (WIFEXITED(status))
{
if (0 == WEXITSTATUS(status))
{
WriteLog("run CMD script successfully.\n");
return 0;
}
else
{
WriteLog("run CMD=[%s] script fail, script exit code: %d\n", cmd,WEXITSTATUS(status));
}
}
else
{
WriteLog("exit status = [%d]\n", WEXITSTATUS(status));
}
}

return -1;

}