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We never used any of the libsysfs convenience features. Here we replace
it completely with 300 lines of code, which are much simpler and a bit
faster cause udev(d) does not open any syfs file for a simple event which
does not need any parent device information.
Signed-off-by: Kay Sievers <kay.sievers@suse.de>
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Hi all, Greg,
libsysfs/dlist.c: _dlist_mark_move()
is missing checks for empty lists and may (and indeed, does) crash when=20
called with empty dlists.
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Please find attached a _BIG_ patch to update udev's libsysfs. Patch applies
on udev-021 and contains:
1. Updates to get udev's libsysfs to the latest (to be released) level.
2. Changes for C++ compatibility (use "char" and not "unsigned char"
unless absolutely necessary).
3. More importantly, take care of buffer overflows. Libsysfs now uses a
scaled down version of Kay's "safe" macros.
Tested using a usb-storage device.
I will send you a doc update shortly.
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Here's the patch applying the latest libsysfs.
- adds the latest libsysfs code to udev
* new code includes dlist implementation, a generic linked list
implementation. Needed our own because LGPL
* rearranged structures
* provided more functions for accessing directory and attributes
- gets rid of ->directory->path references in namedev.c
- replaces sysfs_get_value_from_attributes with sysfs_get_classdev_attr
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