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/* 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 "LoadLibraryUsageChecker.h"
#include "CustomMatchers.h"
// On MacOS the filesystem is UTF-8, on linux the canonical filename is 8-bit
// string. On Windows data loss conversion will occur. This checker restricts
// the use of ASCII file functions for loading libraries.
void LoadLibraryUsageChecker::registerMatchers(MatchFinder *AstMatcher) {
AstMatcher->addMatcher(
callExpr(
allOf(isFirstParty(),
callee(functionDecl(anyOf(
allOf(isInSystemHeader(), anyOf(hasName("LoadLibraryA"),
hasName("LoadLibraryExA"))),
hasName("PR_LoadLibrary")))),
unless(hasArgument(0, stringLiteral()))))
.bind("funcCall"),
this);
}
void LoadLibraryUsageChecker::check(const MatchFinder::MatchResult &Result) {
const CallExpr *FuncCall = Result.Nodes.getNodeAs<CallExpr>("funcCall");
if (FuncCall) {
diag(FuncCall->getBeginLoc(),
"Usage of ASCII file functions (such as %0) is forbidden.",
DiagnosticIDs::Error)
<< FuncCall->getDirectCallee()->getName();
}
}