[patches:#578] fix for crash in canvas_initbang() when loading malformed patch files

Status: open
Group: bugfix
Labels: crash
Created: Sat Jun 25, 2016 08:33 PM UTC by Claude Heiland-Allen
Last Updated: Sat Jun 25, 2016 08:33 PM UTC
Owner: Miller Puckette
Attachments:

• 0001-fix-canvas_initbang-crash-when-loading-bad-patch-fil.patch (1.6 kB; text/x-patch)

Pd crashes in canvas_initbang() if you load a file that isn't really a patch, because binbuf_evalfile() assumes the file is a regular patch that created a canvas during evaluation. The fix is to check that the #X symbol is really bound to a canvas before calling canvas_initbang() on its thing.

For an example of the crash:

echo oops > oops.pd
pd oops.pd

With the attached patch Pd no longer crashes and instead prints "oops: no such object".

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