Uninitialized variable in tigetnum() and friends

[Nadav Har'El]

Hi, I noticed in ncurses-5.9/ncurses/tinfo/lib_ti.c, in the functions tigetnum(), tigetflag() and tigetstr(), the variable "j" is not initialized.
If NCURSES_XNAMES is not defined (because --disable-tcap-names was used), then j can be used without being ever initialized. In that case it can happen to be a large random positive number and cause a crash.

I noticed this when compiling the "rogue" demo for OSv (http://osv.io) with gcc 4.9.1.

I attach a trivial patch fixing this bug.

--

Nadav Har'El

address@hidden

ncurses.patch
Description: Text Data