first working version of uuterm!

- at this point it is purely experimental. only ascii characters are
  visible (using builtin font) although all characters are processed.
- there are known bugs, including crashes.
- there are major missing features.
- but it works. ^_^

1 files changed, 96 insertions, 0 deletions

diff --git a/main.c b/main.c
new file mode 100644
index 0000000..8a8fd31
--- /dev/null
+++ b/main.c
@@ -0,0 +1,96 @@
+/* uuterm, Copyright (C) 2006 Rich Felker; licensed under GNU GPL v2 only */
+
+#include <string.h>
+#include <unistd.h>
+#include <signal.h>
+#include <locale.h>
+#include <sys/select.h>
+#include <sys/time.h> /* for broken systems */
+
+#include "uuterm.h"
+
+int main(int argc, char *argv[])
+{
+	struct uuterm t = { };
+	struct uudisp d = { };
+	int tty, max;
+	int i, l;
+	unsigned char b[128];
+	fd_set fds;
+	struct timeval tv;
+	void *buf;
+
+	setlocale(LC_CTYPE, "");
+
+	d.cell_w = 8;
+	d.cell_h = 16;
+
+	if (uudisp_open(&d) < 0)
+		return 1;
+
+	for (i=1; i<argc; i++)
+		argv[i-1] = argv[i];
+	argv[i-1] = NULL;
+
+	if ((tty = uutty_open(argc > 1 ? argv : NULL, d.w, d.h)) < 0)
+		return 1;
+
+	signal(SIGHUP, SIG_IGN);
+
+	if (!(buf = uuterm_buf_alloc(d.w, d.h))) {
+		uudisp_close(&d);
+		return 1;
+	}
+	uuterm_replace_buffer(&t, d.w, d.h, buf);
+	uuterm_reset(&t);
+
+	for (;;) {
+		/* Setup fd_set containing fd's used by display and our tty */
+		FD_ZERO(&fds);
+		FD_SET(tty, &fds);
+		max = uudisp_fd_set(&d, tty, &fds);
+		tv.tv_sec = 0;
+		tv.tv_usec = 250000;
+		if (select(max, &fds, NULL, NULL, &tv) == 0)
+			d.blink++;
+
+		/* Process input from the tty, up to buffer size */
+		if (FD_ISSET(tty, &fds)) {
+			if ((l = read(tty, b, sizeof b)) <= 0)
+				break;
+			for (i=0; i<l; i++) {
+				uuterm_stuff_byte(&t, b[i]);
+				if (t.reslen) write(tty, t.res, t.reslen);
+			}
+		}
+
+		/* Look for events from the display */
+		uudisp_next_event(&d, &fds);
+
+		if (d.w != t.w || d.h != t.h) {
+			void *newbuf = uuterm_buf_alloc(d.w, d.h);
+			if (newbuf) {
+				uuterm_replace_buffer(&t, d.w, d.h, newbuf);
+				uuterm_free(buf);
+				buf = newbuf;
+				uutty_resize(tty, d.w, d.h);
+			}
+		}
+		if (d.inlen) {
+			write(tty, d.intext, d.inlen);
+			d.blink = 1;
+		}
+
+		/* If no more input is pending, refresh display */
+		FD_ZERO(&fds);
+		FD_SET(tty, &fds);
+		tv.tv_sec = tv.tv_usec = 0;
+		select(max, &fds, NULL, NULL, &tv);
+		if (!FD_ISSET(tty, &fds))
+			uudisp_refresh(&d, &t);
+	}
+
+	uudisp_close(&d);
+
+	return 0;
+}