1 files changed, 66 insertions, 0 deletions
diff --git a/stand/kboot/libkboot/termios.c b/stand/kboot/libkboot/termios.c
new file mode 100644
index 000000000000..cd25b252f735
--- /dev/null
+++ b/stand/kboot/libkboot/termios.c
@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2005-2020 Rich Felker, et al.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * Note: From the musl project, stripped down and repackaged with HOST_/host_ prepended
+ */
+
+#include <sys/types.h>
+#include "termios.h"
+#include "host_syscall.h"
+
+int
+host_tcgetattr(int fd, struct host_termios *tio)
+{
+	if (host_ioctl(fd, HOST_TCGETS, (uintptr_t)tio))
+		return -1;
+	return 0;
+}
+
+int
+host_tcsetattr(int fd, int act, const struct host_termios *tio)
+{
+	if (act < 0 || act > 2) {
+		errno = EINVAL;	/* XXX ?? */
+		return -1;
+	}
+	return host_ioctl(fd, HOST_TCSETS+act, (uintptr_t)tio);
+}
+
+void
+host_cfmakeraw(struct host_termios *t)
+{
+	t->c_iflag &= ~(HOST_IGNBRK | HOST_BRKINT | HOST_PARMRK | HOST_ISTRIP |
+	    HOST_INLCR | HOST_IGNCR | HOST_ICRNL | HOST_IXON);
+	t->c_oflag &= ~HOST_OPOST;
+	t->c_lflag &= ~(HOST_ECHO | HOST_ECHONL | HOST_ICANON | HOST_ISIG |
+	    HOST_IEXTEN);
+	t->c_cflag &= ~(HOST_CSIZE | HOST_PARENB);
+	t->c_cflag |= HOST_CS8;
+	t->c_cc[HOST_VMIN] = 1;
+	t->c_cc[HOST_VTIME] = 0;
+}
+
+int host_cfsetospeed(struct host_termios *tio, host_speed_t speed)
+{
+	if (speed & ~HOST_CBAUD) {
+//		errno = EINVAL; /* XXX ? */
+		return -1;
+	}
+	tio->c_cflag &= ~HOST_CBAUD;
+	tio->c_cflag |= speed;
+	return 0;
+}
+
+int host_cfsetispeed(struct host_termios *tio, host_speed_t speed)
+{
+	return speed ? host_cfsetospeed(tio, speed) : 0;
+}
+
+int
+host_cfsetspeed(struct host_termios *tio, host_speed_t speed)
+{
+	return host_cfsetospeed(tio, speed);	/* weak alias in musl */
+}
+