1 files changed, 130 insertions, 0 deletions

diff --git a/win32/termios.c b/win32/termios.c
new file mode 100644
index 000000000..b94f68f59
--- /dev/null
+++ b/win32/termios.c
@@ -0,0 +1,130 @@
+#include "libbb.h"
+
+int tcsetattr(int fd, int mode UNUSED_PARAM, const struct termios *t)
+{
+        HANDLE h = (HANDLE)_get_osfhandle(fd);
+        if (!SetConsoleMode(h, t->w_mode)) {
+                errno = err_win_to_posix();
+                return -1;
+        }
+
+        return 0;
+}
+
+int tcgetattr(int fd, struct termios *t)
+{
+        HANDLE h = (HANDLE)_get_osfhandle(fd);
+        if (!GetConsoleMode(h, &t->w_mode)) {
+                errno = err_win_to_posix();
+                return -1;
+        }
+
+        t->c_cc[VINTR] = 3;     // ctrl-c
+        t->c_cc[VEOF] = 4;      // ctrl-d
+
+        if (t->w_mode & ENABLE_ECHO_INPUT)
+                t->c_lflag |= ECHO;
+        else
+                t->c_lflag &= ~ECHO;
+
+        return 0;
+}
+
+int64_t FAST_FUNC windows_read_key(int fd, char *buf UNUSED_PARAM, int timeout)
+{
+        HANDLE cin = GetStdHandle(STD_INPUT_HANDLE);
+        INPUT_RECORD record;
+        DWORD nevent_out, mode;
+        int ret = -1;
+        DWORD alt_pressed = FALSE;
+        DWORD state;
+
+        if (fd != 0)
+                bb_error_msg_and_die("read_key only works on stdin");
+        if (cin == INVALID_HANDLE_VALUE)
+                return -1;
+        GetConsoleMode(cin, &mode);
+        SetConsoleMode(cin, 0);
+
+        while (1) {
+                errno = 0;
+                if (timeout > 0) {
+                        if (WaitForSingleObject(cin, timeout) != WAIT_OBJECT_0)
+                                goto done;
+                }
+                if (!readConsoleInput_utf8(cin, &record, 1, &nevent_out))
+                        goto done;
+
+                if (record.EventType != KEY_EVENT)
+                        continue;
+
+                state = record.Event.KeyEvent.dwControlKeyState;
+                if (!record.Event.KeyEvent.bKeyDown) {
+                        /* ignore all key up events except Alt */
+                        if (!(alt_pressed && (state & LEFT_ALT_PRESSED) == 0 &&
+                                        record.Event.KeyEvent.wVirtualKeyCode == VK_MENU))
+                                continue;
+                }
+                alt_pressed = state & LEFT_ALT_PRESSED;
+
+                if (!record.Event.KeyEvent.uChar.AsciiChar) {
+                        if (alt_pressed && !(state & ENHANCED_KEY)) {
+                                /* keys on numeric pad used to enter character codes */
+                                switch (record.Event.KeyEvent.wVirtualKeyCode) {
+                                case VK_NUMPAD0: case VK_INSERT:
+                                case VK_NUMPAD1: case VK_END:
+                                case VK_NUMPAD2: case VK_DOWN:
+                                case VK_NUMPAD3: case VK_NEXT:
+                                case VK_NUMPAD4: case VK_LEFT:
+                                case VK_NUMPAD5: case VK_CLEAR:
+                                case VK_NUMPAD6: case VK_RIGHT:
+                                case VK_NUMPAD7: case VK_HOME:
+                                case VK_NUMPAD8: case VK_UP:
+                                case VK_NUMPAD9: case VK_PRIOR:
+                                        continue;
+                                }
+                        }
+
+                        switch (record.Event.KeyEvent.wVirtualKeyCode) {
+                        case VK_DELETE: ret = KEYCODE_DELETE; break;
+                        case VK_INSERT: ret = KEYCODE_INSERT; break;
+                        case VK_UP: ret = KEYCODE_UP; break;
+                        case VK_DOWN: ret = KEYCODE_DOWN; break;
+                        case VK_RIGHT: ret = KEYCODE_RIGHT; break;
+                        case VK_LEFT: ret = KEYCODE_LEFT; break;
+                        case VK_HOME: ret = KEYCODE_HOME; break;
+                        case VK_END: ret = KEYCODE_END; break;
+                        case VK_PRIOR: ret = KEYCODE_PAGEUP; break;
+                        case VK_NEXT: ret = KEYCODE_PAGEDOWN; break;
+                        default:
+                                alt_pressed = FALSE;
+                                continue;
+                        }
+
+                        if (state & (RIGHT_ALT_PRESSED|LEFT_ALT_PRESSED))
+                                ret &= ~0x20;
+                        if (state & (RIGHT_CTRL_PRESSED|LEFT_CTRL_PRESSED))
+                                ret &= ~0x40;
+                        if (state & SHIFT_PRESSED)
+                                ret &= ~0x80;
+                        goto done;
+                }
+                if ( (record.Event.KeyEvent.uChar.AsciiChar & 0x80) == 0x80 ) {
+                        char *s = &record.Event.KeyEvent.uChar.AsciiChar;
+                        conToCharBuffA(s, 1);
+                }
+                ret = record.Event.KeyEvent.uChar.AsciiChar;
+                if (state & (RIGHT_ALT_PRESSED|LEFT_ALT_PRESSED)) {
+                        switch (ret) {
+                        case '\b': ret = KEYCODE_ALT_BACKSPACE; goto done;
+                        case 'b': ret = KEYCODE_ALT_LEFT; goto done;
+                        case 'd': ret = KEYCODE_ALT_D; goto done;
+                        case 'f': ret = KEYCODE_ALT_RIGHT; goto done;
+                        }
+                }
+                break;
+        }
+ done:
+        SetConsoleMode(cin, mode);
+        return ret;
+}