libc_func_matchers Namespace Reference

Classes
struct	LibcFunNamePrefixSuffixParser

Functions
static const Expr *	tryConstantFoldConditionalExpr (const Expr *E, const ASTContext &Ctx)
static bool	isNullTermPointer (const Expr *Ptr, ASTContext &Ctx)
static bool	hasUnsafeFormatOrSArg (const CallExpr *Call, const Expr *&UnsafeArg, const unsigned FmtArgIdx, ASTContext &Ctx, bool isKprintf=false)
static bool	isPredefinedUnsafeLibcFunc (const FunctionDecl &Node)
static bool	isUnsafeVaListPrintfFunc (const FunctionDecl &Node)
static bool	isUnsafeSprintfFunc (const FunctionDecl &Node)
static bool	isNormalPrintfFunc (const FunctionDecl &Node)
static bool	hasUnsafePrintfStringArg (const CallExpr &Node, ASTContext &Ctx, MatchResult &Result, llvm::StringRef Tag)
static bool	hasUnsafeSnprintfBuffer (const CallExpr &Node, ASTContext &Ctx)

Function Documentation

hasUnsafeFormatOrSArg()

bool libc_func_matchers::hasUnsafeFormatOrSArg ( const CallExpr * Call, const Expr *& UnsafeArg, const unsigned FmtArgIdx, ASTContext & Ctx, bool isKprintf = false )

static

Definition at line 826 of file UnsafeBufferUsage.cpp.

References LengthModifier::AsWideChar, clang::Call, clang::IntegerLiteral::Create(), clang::analyze_printf::OptionalAmount::getConstantAmount(), clang::analyze_printf::PrintfSpecifier::getConversionSpecifier(), clang::analyze_printf::OptionalAmount::getHowSpecified(), clang::analyze_format_string::ConversionSpecifier::getKind(), LengthModifier::getKind(), clang::ASTContext::getLangOpts(), clang::analyze_format_string::FormatSpecifier::getLengthModifier(), clang::analyze_format_string::FormatSpecifier::getPositionalArgIndex(), clang::analyze_printf::OptionalAmount::getPositionalArgIndex(), clang::analyze_printf::PrintfSpecifier::getPrecision(), clang::ASTContext::getSizeType(), clang::ASTContext::getTargetInfo(), clang::Expr::getType(), clang::ASTContext::getTypeSize(), clang::analyze_printf::OptionalAmount::hasDataArgument(), clang::Expr::IgnoreParenImpCasts(), isNullTermPointer(), isPtrBufferSafe(), clang::analyze_format_string::ParsePrintfString(), and clang::analyze_format_string::ConversionSpecifier::sArg.

Referenced by hasUnsafePrintfStringArg().

hasUnsafePrintfStringArg()

bool libc_func_matchers::hasUnsafePrintfStringArg ( const CallExpr & Node, ASTContext & Ctx, MatchResult & Result, llvm::StringRef Tag )

static

Definition at line 1130 of file UnsafeBufferUsage.cpp.

References clang::CallExpr::arguments(), clang::Type::castAs(), clang::DynTypedNode::create(), clang::QualType::getCanonicalType(), clang::CallExpr::getDirectCallee(), clang::ASTContext::getFILEType(), clang::NamedDecl::getIdentifier(), clang::FunctionDecl::getNumParams(), clang::FunctionDecl::getParamDecl(), getPointeeType(), clang::ValueDecl::getType(), hasUnsafeFormatOrSArg(), hasUnsafePrintfStringArg(), clang::QualType::isConstQualified(), clang::Type::isIntegerType(), clang::QualType::isNull(), isNullTermPointer(), and clang::Type::isPointerType().

Referenced by hasUnsafePrintfStringArg().

hasUnsafeSnprintfBuffer()

bool libc_func_matchers::hasUnsafeSnprintfBuffer ( const CallExpr & Node, ASTContext & Ctx )

static

Definition at line 1205 of file UnsafeBufferUsage.cpp.

References clang::Type::castAs(), clang::CallExpr::getArg(), clang::CallExpr::getDirectCallee(), clang::FunctionDecl::getNumParams(), clang::FunctionDecl::getParamDecl(), getPointeeType(), clang::Expr::getType(), clang::ValueDecl::getType(), hasUnsafeSnprintfBuffer(), clang::Type::isAnyCharacterType(), clang::QualType::isConstQualified(), clang::Type::isPointerType(), and isPtrBufferSafe().

Referenced by hasUnsafeSnprintfBuffer().

isNormalPrintfFunc()

bool libc_func_matchers::isNormalPrintfFunc ( const FunctionDecl & Node )

static

Definition at line 1106 of file UnsafeBufferUsage.cpp.

References clang::FunctionDecl::getBuiltinID(), clang::NamedDecl::getIdentifier(), isNormalPrintfFunc(), and libc_func_matchers::LibcFunNamePrefixSuffixParser::matchName().

Referenced by isNormalPrintfFunc().

isNullTermPointer()

bool libc_func_matchers::isNullTermPointer ( const Expr * Ptr, ASTContext & Ctx )

static

Definition at line 801 of file UnsafeBufferUsage.cpp.

References clang::CXXRecordDecl::getCanonicalDecl(), clang::NamedDecl::getIdentifier(), clang::NamedDecl::getName(), clang::Expr::IgnoreParenImpCasts(), clang::isa(), clang::Decl::isInStdNamespace(), and tryConstantFoldConditionalExpr().

Referenced by hasUnsafeFormatOrSArg(), and hasUnsafePrintfStringArg().

isPredefinedUnsafeLibcFunc()

bool libc_func_matchers::isPredefinedUnsafeLibcFunc ( const FunctionDecl & Node )

static

Definition at line 959 of file UnsafeBufferUsage.cpp.

References clang::FunctionDecl::getBuiltinID(), clang::NamedDecl::getIdentifier(), isPredefinedUnsafeLibcFunc(), and libc_func_matchers::LibcFunNamePrefixSuffixParser::matchName().

Referenced by isPredefinedUnsafeLibcFunc().

isUnsafeSprintfFunc()

bool libc_func_matchers::isUnsafeSprintfFunc ( const FunctionDecl & Node )

static

Definition at line 1082 of file UnsafeBufferUsage.cpp.

References clang::FunctionDecl::getBuiltinID(), clang::NamedDecl::getIdentifier(), isUnsafeSprintfFunc(), and libc_func_matchers::LibcFunNamePrefixSuffixParser::matchName().

Referenced by isUnsafeSprintfFunc().

isUnsafeVaListPrintfFunc()

bool libc_func_matchers::isUnsafeVaListPrintfFunc ( const FunctionDecl & Node )

static

Definition at line 1066 of file UnsafeBufferUsage.cpp.

References clang::FunctionDecl::getBuiltinID(), clang::NamedDecl::getIdentifier(), isUnsafeVaListPrintfFunc(), and libc_func_matchers::LibcFunNamePrefixSuffixParser::matchName().

Referenced by isUnsafeVaListPrintfFunc().

tryConstantFoldConditionalExpr()

const Expr * libc_func_matchers::tryConstantFoldConditionalExpr ( const Expr * E, const ASTContext & Ctx )

static

Definition at line 787 of file UnsafeBufferUsage.cpp.

Referenced by isNullTermPointer().