Function report |
Source Code:security\keys\keyring.c |
Create Date:2022-07-28 18:17:22 |
Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
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Name:Compare the index keys of a pair of objects and determine the bit position* at which they differ - if they differ.
Proto:static int keyring_diff_objects(const void *object, const void *data)
Type:int
Parameter:
Type | Parameter | Name |
---|---|---|
const void * | object | |
const void * | data |
327 | key_a = keyring_ptr_to_key(object) |
333 | level = 0 |
334 | seg_a = Hash value |
335 | seg_b = Hash value |
338 | level += Key data retrieved in chunks of this size / 8 |
357 | seg_a = Domain of operation |
358 | seg_b = Domain of operation |
363 | i = size of First few chars of description |
368 | seg_a = *(description + i) |
369 | seg_b = *(description + i) |
370 | If (seg_a ^ seg_b) != 0 Then Go to differ_plus_i |
374 | same : |
375 | Return -1 |
377 | differ_plus_i : |
379 | differ : |
380 | i = level * 8 + __ffs - find first set bit in word*@word: The word to search* Undefined if no bit exists, so code should check against 0 first. |
381 | Return i |
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