6 files changed, 31 insertions, 1 deletions
diff --git a/src/init/main.c b/src/init/main.c
index 1a6162a..5c798d2 100644
--- a/src/init/main.c
+++ b/src/init/main.c
@@ -28,6 +28,10 @@ int main(void) {
 	fs_test();
 	test_await();
 
+	char c;
+	while (_syscall_read(tty_fd, &c, 1, 0))
+		_syscall_write(tty_fd, &c, 1, 0);
+
 	_syscall_exit(argify("my job here is done."));
 }
 
diff --git a/src/kernel/arch/i386/tty/serial.c b/src/kernel/arch/i386/tty/serial.c
index 6ddc05b..2b89ecf 100644
--- a/src/kernel/arch/i386/tty/serial.c
+++ b/src/kernel/arch/i386/tty/serial.c
@@ -35,6 +35,11 @@ static void serial_putchar(char c) {
 	port_outb(COM1, c);
 }
 
+char serial_read(void) {
+	while ((port_inb(COM1 + 5) & 0x01) == 0); // wait for DR
+	return port_inb(COM1);
+}
+
 void serial_write(const char *buf, size_t len) {
 	for (size_t i = 0; i < len; i++)
 		serial_putchar(buf[i]);
diff --git a/src/kernel/arch/i386/tty/serial.h b/src/kernel/arch/i386/tty/serial.h
index 2332113..751e528 100644
--- a/src/kernel/arch/i386/tty/serial.h
+++ b/src/kernel/arch/i386/tty/serial.h
@@ -1,5 +1,6 @@
 #pragma once
 #include <stddef.h>
 
+char serial_read(void);
 void serial_write(const char *buf, size_t len);
 void serial_init(void);
diff --git a/src/kernel/arch/i386/tty/tty.c b/src/kernel/arch/i386/tty/tty.c
index bae65c5..5a65221 100644
--- a/src/kernel/arch/i386/tty/tty.c
+++ b/src/kernel/arch/i386/tty/tty.c
@@ -11,6 +11,11 @@ void tty_init(void) {
 	serial_write("<3 ", 3);
 }
 
+void tty_read(char *buf, size_t len) {
+	for (size_t i = 0; i < len; i++)
+		buf[i] = serial_read();
+}
+
 void tty_write(const char *buf, size_t len) {
 	vga_write(buf, len);
 	serial_write(buf, len);
diff --git a/src/kernel/arch/io.h b/src/kernel/arch/io.h
index ef8cb17..acba67a 100644
--- a/src/kernel/arch/io.h
+++ b/src/kernel/arch/io.h
@@ -2,6 +2,7 @@
 #include <stddef.h>
 
 void tty_init(void);
+void tty_read(char *buf, size_t len);
 void tty_write(const char *buf, size_t len);
 
 static inline void _tty_hex(const char *buf, size_t len) {
diff --git a/src/kernel/vfs/root.c b/src/kernel/vfs/root.c
index dca81d2..7e957ef 100644
--- a/src/kernel/vfs/root.c
+++ b/src/kernel/vfs/root.c
@@ -13,12 +13,26 @@ int vfs_root_handler(struct vfs_request *req) {
 				return 0;
 			}
 			return -1;
-		case VFSOP_WRITE:
+
+		case VFSOP_READ:
 			switch (req->id) {
 				// every id corresponds to a special file type
 				// this is a shit way to do this but :shrug:
 				case 0: { // tty
 					struct virt_iter iter;
+					virt_iter_new(&iter, req->output.buf, req->output.len,
+							req->caller->pages, true, false);
+					while (virt_iter_next(&iter))
+						tty_read(iter.frag, iter.frag_len);
+					return iter.prior;
+				}
+				default: panic_invalid_state();
+			}
+
+		case VFSOP_WRITE:
+			switch (req->id) {
+				case 0: { // tty
+					struct virt_iter iter;
 					virt_iter_new(&iter, req->input.buf, req->input.len,
 							req->caller->pages, true, false);
 					while (virt_iter_next(&iter))