csize.c

unix环境高级编程第二版配套源代码 unix环境高级编程第二版配套源代码

#include "apue.h"
#include <termios.h>

int
main(void)
{
	struct termios	term;

	if (tcgetattr(STDIN_FILENO, &term) < 0)
		err_sys("tcgetattr error");

	switch (term.c_cflag & CSIZE) {
	case CS5:
		printf("5 bits/byte\n");
		break;
	case CS6:
		printf("6 bits/byte\n");
		break;
	case CS7:
		printf("7 bits/byte\n");
		break;
	case CS8:
		printf("8 bits/byte\n");
		break;
	default:
		printf("unknown bits/byte\n");
	}

	term.c_cflag &= ~CSIZE;		/* zero out the bits */
	term.c_cflag |= CS8;		/* set 8 bits/byte */
	if (tcsetattr(STDIN_FILENO, TCSANOW, &term) < 0)
		err_sys("tcsetattr error");

	exit(0);
}