app-text/fbpdf/files/0001-disable-arrow-keys.patch

   1 From 3fdbe2a505d6809e837564c0af57b1e25fb37372 Mon Sep 17 00:00:00 2001
   2 From: "S. Gilles" <sgilles@math.umd.edu>
   3 Date: Mon, 4 Feb 2019 09:40:41 -0500
   4 Subject: [PATCH 1/5] disable arrow keys
   5
   6 ---
   7  fbpdf.c | 16 +++++++++++++++-
   8  1 file changed, 15 insertions(+), 1 deletion(-)
   9
  10 diff --git a/fbpdf.c b/fbpdf.c
  11 index 6caa08f..7c387e9 100644
  12 --- a/fbpdf.c
  13 +++ b/fbpdf.c
  14 @@ -115,9 +115,23 @@ static void jmpmark(int c, int offset)
  15  static int readkey(void)
  16  {
  17         unsigned char b;
  18 +again:
  19         if (read(0, &b, 1) <= 0)
  20                 return -1;
  21 -       return b;
  22 +
  23 +       if (b != 27)
  24 +               return b;
  25 +
  26 +       if (read(0, &b, 1) <= 0)
  27 +               return -1;
  28 +
  29 +       if (b != 91)
  30 +               return b;
  31 +
  32 +       if (read(0, &b, 1) <= 0)
  33 +               return -1;
  34 +
  35 +       goto again;
  36  }
  37
  38  static int getcount(int def)
  39 --
  40 2.20.1
  41