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#include <curses.h>
#include <stdio.h>
+#include <stdlib.h>
#include <termios.h>
#include <unistd.h>
#include <vis.h>
+static void restore_tcattrs(void);
+
+struct termios old_attrs;
+
int
main(void)
{
struct termios tp;
tcgetattr(STDIN_FILENO, &tp);
+ old_attrs = tp;
tp.c_iflag &= ~(IXANY | IXON | IXOFF);
tcsetattr(STDIN_FILENO, TCSANOW, &tp);
+ atexit(restore_tcattrs);
initscr(); /* Init screen */
noecho(); /* Don’t echo keypresses */
@@ -25,19 +18,10 @@
for (;;) {
/* Read char and encode it as a string */
char buf[5];
+ int ch = getch();
+ if (ch == '\x11') /* ^Q */
+ break;
+ vis(buf, ch, VIS_WHITE, 0);
- vis(buf, getch(), VIS_WHITE, 0);
clear(); /* Clear screen */
printw("%s\n", buf); /* Write char to screen */
refresh(); /* Refresh display */
}
- /* unreachable */
+ endwin(); /* Destroy screen */
+ return EXIT_SUCCESS;
}
+
+void
+restore_tcattrs(void)
+{
+ tcsetattr(STDIN_FILENO, TCSANOW, &old_attrs);
+}
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