[PATCH] D26574: [asan] Fix strncmp and strncasecmp interceptors

[Vitaly Buka via llvm-commits]

vitalybuka created this revision.
vitalybuka added reviewers: kcc, eugenis.
vitalybuka added a subscriber: llvm-commits.
Herald added a subscriber: kubabrecka.

In non-strict mode we will check memory access for both strings from beginning
to either:

1. 0-char
2. size
3. different chars

In strict mode we will check from beginning to either:

1. 0-char
2. size

Previously in strict mode we always checked up to the 0-char.


https://reviews.llvm.org/D26574

Files:
  lib/sanitizer_common/sanitizer_common_interceptors.inc
  test/asan/TestCases/strncmp_strict.c

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