C 語言 ioctl

標籤：des   style   blog   color   io   2014   ar   div   

/**@author cody*@date 2014-08-12*@description *//*#include <sys/ioctl.h>send control and config order to deviceint ioctl(int d,int request,...);params    d -- file descriptor    request ---ioctl order*/#include <stdio.h>#include <stdlib.h>#include <unistd.h>#include <sys/ioctl.h>void GetTernimalSize(){    struct winsize size;    if(isatty(STDOUT_FILENO) == 0){        exit(1);    }    if(ioctl(STDOUT_FILENO,TIOCGWINSZ,&size) < 0){        perror("ioctl error");        exit(1);    }    printf("%d rows,%d columns\n",size.ws_row,size.ws_col );}int main(int argc, char const *argv[]){    GetTernimalSize();    return 0;}