p9-7.c

SUN Solaris8平台下进程间通信

#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <termios.h>
struct termios saved_attributes;        /* 用该变量保存原来的终端属性 */
void reset_input_mode (void)
{
    tcsetattr (STDIN_FILENO, TCSANOW, &saved_attributes);
}
void set_input_mode (void)
{
    struct termios tattr;
    char *name;
     /* 保证stdin 是终端 */
    if (!isatty (STDIN_FILENO)) {
        fprintf (stderr, "Not a terminal.\n");
        exit (EXIT_FAILURE);
    }
     /* 保存终端属性以便以后恢复*/
    tcgetattr (STDIN_FILENO, &saved_attributes);
    atexit (reset_input_mode);
     /* 设置终端为非加工、不回显方式 */
    tcgetattr (STDIN_FILENO, &tattr);
    tattr.c_lflag &= ~(ICANON|ECHO); /* 清除 ICANON和ECHO */
    tattr.c_cc[VMIN] = 1;
    tattr.c_cc[VTIME] = 0;
    tcsetattr (STDIN_FILENO, TCSAFLUSH, &tattr);
}
int main (void)
{
    char c;
    set_input_mode();
    while (1){
        read (STDIN_FILENO, &c, 1);
        if (c == '\004')          /* Ctrl-d */
            break;
        else
            printf("I read %c\n",c);
     }
     return EXIT_SUCCESS;
 }