Message 69388 - Python tracker

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In-reply-to
Author	vstinner
Recipients	vstinner
Date	2008年07月07日.13:24:28
SpamBayes Score	3.4679913e-05
Marked as misclassified	No
Message-id	<1215437073.22.0.670628810168.issue3313@psf.upfronthosting.co.za>

Content
Python dl_open() function (from dl module) calls dlopen() and check its result: if it's NULL, it's an error. This is correct if I read the man page. But with an invalid flag value (-1), dlopen() returns NULL but dlerror() also gives a NULL pointer. Example: >>> import dl >>> dl.open("/usr/lib/libm.so", -1) Erreur de segmentation (core dumped) Workaround: use a static error message if dlerror() returns NULL. I wrote a patch for dl_open() but other functions (in ctypes module?) should also call dlerror().

Content

Python dl_open() function (from dl module) calls dlopen() and check 
its result: if it's NULL, it's an error. This is correct if I read the 
man page. But with an invalid flag value (-1), dlopen() returns NULL 
but dlerror() also gives a NULL pointer. Example:
>>> import dl
>>> dl.open("/usr/lib/libm.so", -1)
Erreur de segmentation (core dumped)
Workaround: use a static error message if dlerror() returns NULL.
I wrote a patch for dl_open() but other functions (in ctypes module?) 
should also call dlerror().

History
Date	User	Action	Args
2008年07月07日 13:24:33	vstinner	set	spambayes_score: 3.46799e-05 -> 3.4679913e-05 recipients: + vstinner
2008年07月07日 13:24:33	vstinner	set	spambayes_score: 3.46799e-05 -> 3.46799e-05 messageid: <1215437073.22.0.670628810168.issue3313@psf.upfronthosting.co.za>
2008年07月07日 13:24:31	vstinner	link	issue3313 messages
2008年07月07日 13:24:30	vstinner	create

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