зеркало из https://github.com/mozilla/gecko-dev.git
40 строки
1.4 KiB
C++
40 строки
1.4 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#include <ctype.h>
|
|
#include "nsAString.h"
|
|
#include "plstr.h"
|
|
|
|
#include "nsTStringComparator.cpp"
|
|
|
|
int nsCaseInsensitiveCStringComparator(const char* aLhs, const char* aRhs,
|
|
uint32_t aLhsLength,
|
|
uint32_t aRhsLength) {
|
|
#if defined(LIBFUZZER) && defined(LINUX)
|
|
// Make sure libFuzzer can see this string compare by calling the POSIX
|
|
// native function which is intercepted. We also call this if the lengths
|
|
// don't match so libFuzzer can at least see a partial string, but we throw
|
|
// away the result afterwards again.
|
|
int32_t result =
|
|
int32_t(strncasecmp(aLhs, aRhs, std::min(aLhsLength, aRhsLength)));
|
|
|
|
if (aLhsLength != aRhsLength) {
|
|
return (aLhsLength > aRhsLength) ? 1 : -1;
|
|
}
|
|
#else
|
|
if (aLhsLength != aRhsLength) {
|
|
return (aLhsLength > aRhsLength) ? 1 : -1;
|
|
}
|
|
int32_t result = int32_t(PL_strncasecmp(aLhs, aRhs, aLhsLength));
|
|
#endif
|
|
// Egads. PL_strncasecmp is returning *very* negative numbers.
|
|
// Some folks expect -1,0,1, so let's temper its enthusiasm.
|
|
if (result < 0) {
|
|
result = -1;
|
|
}
|
|
return result;
|
|
}
|