csize.c

APUE(第二版)的随书源代码,与第一版的代码相比增加了一些章节的代码(详见第二版的说明)

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

int
main(void)
{
	struct termios	term;
	int				size;

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

	size = term.c_cflag & CSIZE;
	if      (size == CS5)	printf("5 bits/byte\n");
	else if (size == CS6)	printf("6 bits/byte\n");
	else if (size == CS7)	printf("7 bits/byte\n");
	else if (size == CS8)	printf("8 bits/byte\n");
	else					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);
}