#include <stdio.h>
-#include <signal.h>
-#include <errno.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <termios.h>
-#include <sys/ioctl.h>
static int init(void);
static void cleanup(void);
static void sighandler(int s);
-int term_width, term_height;
-int ttyfd;
-struct termios saved_term;
-
int main(int argc, char **argv)
{
int res;
}
for(;;) {
- if((res = read(ttyfd, &c, 1)) == 0 || (res < 0 && errno != EINTR)) {
+ if(term_getchar() == 'q') {
break;
}
/* proc input */
static int init(void)
{
- struct termios term;
- struct winsize winsz;
-
- if((ttyfd = open("/dev/tty", O_RDWR)) == -1) {
- perror("failed to open /dev/tty");
+ if(term_init() == -1) {
return -1;
}
- if(tcgetattr(ttyfd, &term) == -1) {
- perror("failed to get terminal attr");
- return -1;
- }
- saved_term = term;
- term.c_iflag &= ~(IGNBRK | BRKINT | PARMRK | ISTRIP | INLCR | IGNCR | ICRNL | IXON);
- term.c_oflag &= ~OPOST;
- term.c_lflag &= ~(ECHO | ECHONL | ICANON | ISIG | IEXTEN);
- term.c_cflag = (term.c_cflag & ~(CSIZE | PARENB)) | CS8;
-
- if(tcsetattr(ttyfd, TCSAFLUSH, &term) == -1) {
- perror("failed to change terminal attributes");
- return -1;
- }
-
- ioctl(1, TIOCGWINSZ, &winsz);
- term_width = winsz.ws_col;
- term_height = winsz.ws_row;
-
- signal(SIGWINCH, sighandler);
-
- write(ttyfd, "\033[2J", 4);
-
+ term_clear();
return 0;
}
static void cleanup(void)
{
- tcsetattr(ttyfd, TCSAFLUSH, &saved_term);
- close(ttyfd);
-}
-
-static void sighandler(int s)
-{
- struct winsize winsz;
-
- signal(s, sighandler);
-
- switch(s) {
- case SIGWINCH:
- ioctl(1, TIOCGWINSZ, &winsz);
- term_width = winsz.ws_col;
- term_height = winsz.ws_row;
- /* redraw */
- break;
-
- default:
- break;
- }
+ term_cleanup();
}