[ python-Bugs-1548092 ] curses module segfaults on invalid tparm arguments

[SourceForge.net]

Bugs item #1548092, was opened at 2006-08-28 19:47
Message generated for change (Tracker Item Submitted) made by Item Submitter
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=105470&aid=1548092&group_id=5470

Please note that this message will contain a full copy of the comment thread,
including the initial issue submission, for this request,
not just the latest update.
Category: Extension Modules
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Marien Zwart (marienz)
Assigned to: Nobody/Anonymous (nobody)
Summary: curses module segfaults on invalid tparm arguments

Initial Comment:
At least on my platform the ncurses "tparm" function
returns NULL on certain invalid arguments.
PyCurses_tparm does not check the return value, it just
passes it to PyString_FromString. This means:

python -c "import curses;curses.setupterm();print
curses.tparm('', curses.COLOR_GREEN)"

gives me:

zsh: segmentation fault  python -c

(tested with python 2.4.3)

I am not sure what the best fix is. An exception would
make sense to me, but the (related) tigetstr function
returns None to python if the wrapped c function
returns NULL, and I have not used the curses module
enough to know what is more common.


----------------------------------------------------------------------

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=105470&aid=1548092&group_id=5470