initial check-in, version 0.5.0 v0.5.0

1 files changed, 33 insertions, 0 deletions

diff --git a/src/misc/openpty.c b/src/misc/openpty.c
new file mode 100644
index 00000000..0b4eb221
--- /dev/null
+++ b/src/misc/openpty.c
@@ -0,0 +1,33 @@
+#include <stdlib.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <pty.h>
+#include <stdio.h>
+
+/* Nonstandard, but vastly superior to the standard functions */
+
+int openpty(int *m, int *s, char *name, const struct termios *tio, const struct winsize *ws)
+{
+	int n=0;
+	char buf[20];
+
+	*m = open("/dev/ptmx", O_RDWR|O_NOCTTY);
+	if (!*m) return -1;
+
+	if (ioctl(*m, TIOCSPTLCK, &n) || ioctl (*m, TIOCGPTN, &n)) {
+		close(*m);
+		return -1;
+	}
+
+	if (!name) name = buf;
+	snprintf(name, sizeof buf, "/dev/pts/%d", n);
+	if ((*s = open(name, O_RDWR|O_NOCTTY)) < 0) {
+		close(*m);
+		return -1;
+	}
+
+	if (tio) tcsetattr(*s, TCSANOW, tio);
+	if (ws) ioctl(*s, TIOCSWINSZ, ws);
+
+	return 0;
+}