ncursesw crashes when key_name() is fed with certain characters

[Andreas Krennmair]

Hi,

I came upon an interesting problem where key_name() from ncursesw
crashes when it is fed with characters like the Euro symbol on a UTF-8
terminal with LC_ALL=en_US.UTF-8. Attached is a test program which makes
it possible to reproduce the issue. When I press "normal" keys like "a"
everything works fine, when I use umlauts like "ä", "ö" or "ü",
key_name() returns NULL, but when I press keys like "€" or enter Greek
characters or Japanese Hiragana, Katakana or Kanji characters, then
key_name() crashes like this:

Program received signal SIGSEGV, Segmentation fault.
0x08056f87 in key_name ()
Current language:  auto; currently asm
(gdb) bt
#0  0x08056f87 in key_name ()
#1  0x08048311 in main () at keyname.c:39
(gdb)

Regards,
Andreas

keyname.c
Description: Text document