1 files changed, 73 insertions, 0 deletions

diff --git a/libbb/termios.c b/libbb/termios.c
new file mode 100644
index 000000000..f47593a49
--- /dev/null
+++ b/libbb/termios.c
@@ -0,0 +1,73 @@
+#include "libbb.h"
+#include <windef.h>
+#include <wincon.h>
+#include "strbuf.h"
+#include "cygwin_termios.h"
+
+int tcgetattr(int fd, struct termios *t)
+{
+        t->c_lflag = ECHO;
+        return 0;
+}
+
+
+int tcsetattr(int fd, int mode, const struct termios *t)
+{
+        return 0;
+}
+
+static int get_wincon_width_height(const int fd, int *width, int *height)
+{
+        HANDLE console;
+        CONSOLE_SCREEN_BUFFER_INFO sbi;
+
+        console = GetStdHandle(STD_OUTPUT_HANDLE);
+        if (console == INVALID_HANDLE_VALUE || !console)
+                return -1;
+
+        GetConsoleScreenBufferInfo(console, &sbi);
+
+        if (width)
+                *width = sbi.srWindow.Right - sbi.srWindow.Left;
+        if (height)
+                *height = sbi.srWindow.Bottom - sbi.srWindow.Top;
+        return 0;
+}
+
+int get_terminal_width_height(const int fd, int *width, int *height)
+{
+        return get_wincon_width_height(fd, width, height);
+}
+
+int wincon_read(int fd, char *buf, int size)
+{
+        static struct strbuf input = STRBUF_INIT;
+        HANDLE cin = GetStdHandle(STD_INPUT_HANDLE);
+        static int initialized = 0;
+
+        if (fd != 0)
+                die("wincon_read is for stdin only");
+        if (cin == INVALID_HANDLE_VALUE || is_cygwin_tty(fd))
+                return safe_read(fd, buf, size);
+        if (!initialized) {
+                SetConsoleMode(cin, ENABLE_ECHO_INPUT);
+                initialized = 1;
+        }
+        while (input.len < size) {
+                INPUT_RECORD record;
+                DWORD nevent_out;
+                int ch;
+
+                if (!ReadConsoleInput(cin, &record, 1, &nevent_out))
+                        return -1;
+                if (record.EventType != KEY_EVENT || !record.Event.KeyEvent.bKeyDown)
+                        continue;
+                ch = record.Event.KeyEvent.uChar.AsciiChar;
+                /* Ctrl-X is handled by ReadConsoleInput, Alt-X is not needed anyway */
+                strbuf_addch(&input, ch);
+        }
+        memcpy(buf, input.buf, size);
+        memcpy(input.buf, input.buf+size, input.len-size+1);
+        strbuf_setlen(&input, input.len-size);
+        return size;
+}