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// RUN: %clang_analyze_cc1 -triple x86_64-apple-darwin -analyzer-output=text\
// RUN: -analyzer-checker=osx.coreFoundation.containers.PointerSizedValues\
// RUN: -analyzer-checker=osx.coreFoundation.containers.OutOfBounds\
// RUN: -verify %s
typedef const struct __CFAllocator * CFAllocatorRef;
typedef const struct __CFString * CFStringRef;
typedef unsigned char Boolean;
typedef signed long CFIndex;
extern
const CFAllocatorRef kCFAllocatorDefault;
typedef const void * (*CFArrayRetainCallBack)(CFAllocatorRef allocator, const void *value);
typedef void (*CFArrayReleaseCallBack)(CFAllocatorRef allocator, const void *value);
typedef CFStringRef (*CFArrayCopyDescriptionCallBack)(const void *value);
typedef Boolean (*CFArrayEqualCallBack)(const void *value1, const void *value2);
typedef struct {
CFIndex version;
CFArrayRetainCallBack retain;
CFArrayReleaseCallBack release;
CFArrayCopyDescriptionCallBack copyDescription;
CFArrayEqualCallBack equal;
} CFArrayCallBacks;
typedef const struct __CFArray * CFArrayRef;
CFArrayRef CFArrayCreate(CFAllocatorRef allocator, const void **values, CFIndex numValues, const CFArrayCallBacks *callBacks);
typedef struct __CFArray * CFMutableArrayRef;
typedef const struct __CFString * CFStringRef;
enum {
kCFNumberSInt8Type = 1,
kCFNumberSInt16Type = 2,
kCFNumberSInt32Type = 3,
kCFNumberSInt64Type = 4,
kCFNumberFloat32Type = 5,
kCFNumberFloat64Type = 6,
kCFNumberCharType = 7,
kCFNumberShortType = 8,
kCFNumberIntType = 9,
kCFNumberLongType = 10,
kCFNumberLongLongType = 11,
kCFNumberFloatType = 12,
kCFNumberDoubleType = 13,
kCFNumberCFIndexType = 14,
kCFNumberNSIntegerType = 15,
kCFNumberCGFloatType = 16,
kCFNumberMaxType = 16
};
typedef CFIndex CFNumberType;
typedef const struct __CFNumber * CFNumberRef;
typedef CFIndex CFComparisonResult;
typedef const struct __CFDictionary * CFDictionaryRef;
typedef const void * (*CFDictionaryRetainCallBack)(CFAllocatorRef allocator, const void *value);
typedef void (*CFDictionaryReleaseCallBack)(CFAllocatorRef allocator, const void *value);
typedef CFStringRef (*CFDictionaryCopyDescriptionCallBack)(const void *value);
typedef Boolean (*CFDictionaryEqualCallBack)(const void *value1, const void *value2);
typedef Boolean (*CFArrayEqualCallBack)(const void *value1, const void *value2);
typedef Boolean (*CFSetEqualCallBack)(const void *value1, const void *value2);
typedef const void * (*CFSetRetainCallBack)(CFAllocatorRef allocator, const void *value);
typedef void (*CFSetReleaseCallBack)(CFAllocatorRef allocator, const void *value);
typedef CFStringRef (*CFSetCopyDescriptionCallBack)(const void *value);
typedef struct {
CFIndex version;
CFSetRetainCallBack retain;
CFSetReleaseCallBack release;
CFSetCopyDescriptionCallBack copyDescription;
CFSetEqualCallBack equal;
} CFSetCallBacks;
typedef struct {
CFIndex version;
CFDictionaryRetainCallBack retain;
CFDictionaryReleaseCallBack release;
CFDictionaryCopyDescriptionCallBack copyDescription;
CFDictionaryEqualCallBack equal;
} CFDictionaryKeyCallBacks;
typedef struct {
CFIndex version;
CFDictionaryRetainCallBack retain;
CFDictionaryReleaseCallBack release;
CFDictionaryCopyDescriptionCallBack copyDescription;
CFDictionaryEqualCallBack equal;
} CFDictionaryValueCallBacks;
CFDictionaryRef CFDictionaryCreate(CFAllocatorRef allocator, const void **keys, const void **values, CFIndex numValues, const CFDictionaryKeyCallBacks *keyCallBacks, const CFDictionaryValueCallBacks *valueCallBacks);
extern
const CFDictionaryValueCallBacks kCFTypeDictionaryValueCallBacks;
typedef const struct __CFSet * CFSetRef;
extern
const CFSetCallBacks kCFTypeSetCallBacks;
extern
const CFDictionaryKeyCallBacks kCFCopyStringDictionaryKeyCallBacks;
extern
const void *CFArrayGetValueAtIndex(CFArrayRef theArray, CFIndex idx);
extern
CFIndex CFArrayGetCount(CFArrayRef theArray);
CFDictionaryRef CFDictionaryCreate(CFAllocatorRef allocator, const void **keys, const void **values, CFIndex numValues, const
CFDictionaryKeyCallBacks *keyCallBacks, const CFDictionaryValueCallBacks *valueCallBacks);
CFNumberRef CFNumberCreate(CFAllocatorRef allocator, CFNumberType theType, const void *valuePtr);
extern
CFSetRef CFSetCreate(CFAllocatorRef allocator, const void **values, CFIndex numValues, const CFSetCallBacks *callBacks);
#define CFSTR(cStr) ((CFStringRef) __builtin___CFStringMakeConstantString ("" cStr ""))
#define NULL __null
// Done with the headers.
// Test alpha.osx.cocoa.ContainerAPI checker.
void testContainers(int **xNoWarn, CFIndex count) {
int x[] = { 1, 2, 3 };
CFArrayRef foo = CFArrayCreate(kCFAllocatorDefault, (const void **) x, sizeof(x) / sizeof(x[0]), 0);
// expected-warning@-1 {{The second argument to 'CFArrayCreate' must be a C array of pointer-sized}}
// expected-note@-2 {{The second argument to 'CFArrayCreate' must be a C array of pointer-sized}}
CFArrayRef fooNoWarn = CFArrayCreate(kCFAllocatorDefault, (const void **) xNoWarn, sizeof(xNoWarn) / sizeof(xNoWarn[0]), 0); // no warning
CFArrayRef fooNoWarn2 = CFArrayCreate(kCFAllocatorDefault, 0, sizeof(xNoWarn) / sizeof(xNoWarn[0]), 0);// no warning, passing in 0
CFArrayRef fooNoWarn3 = CFArrayCreate(kCFAllocatorDefault, NULL, sizeof(xNoWarn) / sizeof(xNoWarn[0]), 0);// no warning, passing in NULL
CFSetRef set = CFSetCreate(NULL, (const void **)x, 3, &kCFTypeSetCallBacks);
// expected-warning@-1 {{The second argument to 'CFSetCreate' must be a C array of pointer-sized values}}
// expected-note@-2 {{The second argument to 'CFSetCreate' must be a C array of pointer-sized values}}
CFArrayRef* pairs = new CFArrayRef[count];
CFSetRef fSet = CFSetCreate(kCFAllocatorDefault, (const void**) pairs, count - 1, &kCFTypeSetCallBacks);// no warning
}
void CreateDict(int *elems) {
const short days28 = 28;
const short days30 = 30;
const short days31 = 31;
CFIndex numValues = 6;
CFStringRef keys[6];
CFNumberRef values[6];
keys[0] = CFSTR("January"); values[0] = CFNumberCreate(kCFAllocatorDefault, kCFNumberShortType, &days31);
keys[1] = CFSTR("February"); values[1] = CFNumberCreate(kCFAllocatorDefault, kCFNumberShortType, &days28);
keys[2] = CFSTR("March"); values[2] = CFNumberCreate(kCFAllocatorDefault, kCFNumberShortType, &days31);
keys[3] = CFSTR("April"); values[3] = CFNumberCreate(kCFAllocatorDefault, kCFNumberShortType, &days30);
keys[4] = CFSTR("May"); values[4] = CFNumberCreate(kCFAllocatorDefault, kCFNumberShortType, &days31);
keys[5] = CFSTR("June"); values[5] = CFNumberCreate(kCFAllocatorDefault, kCFNumberShortType, &days30);
const CFDictionaryKeyCallBacks keyCB = kCFCopyStringDictionaryKeyCallBacks;
const CFDictionaryValueCallBacks valCB = kCFTypeDictionaryValueCallBacks;
CFDictionaryRef dict1 = CFDictionaryCreate(kCFAllocatorDefault, (const void**)keys, (const void**)values, numValues, &keyCB, &valCB); // no warning
CFDictionaryRef dict2 = CFDictionaryCreate(kCFAllocatorDefault, (const void**)elems[0], (const void**)values, numValues, &keyCB, &valCB);
// expected-warning@-1 {{The second argument to 'CFDictionaryCreate' must be a C array of}}
// expected-note@-2 {{The second argument to 'CFDictionaryCreate' must be a C array of}}
// expected-warning@-3{{cast to 'const void **' from smaller integer type 'int'}}
CFDictionaryRef dict3 = CFDictionaryCreate(kCFAllocatorDefault, (const void**)keys, (const void**)elems, numValues, &keyCB, &valCB);
// expected-warning@-1 {{The third argument to 'CFDictionaryCreate' must be a C array of pointer-sized values}}
// expected-note@-2 {{The third argument to 'CFDictionaryCreate' must be a C array of pointer-sized values}}
}
void OutOfBoundsSymbolicOffByOne(const void ** input, CFIndex S) {
CFArrayRef array;
array = CFArrayCreate(kCFAllocatorDefault, input, S, 0);
const void *s1 = CFArrayGetValueAtIndex(array, 0); // no warning
const void *s2 = CFArrayGetValueAtIndex(array, S-1); // no warning
const void *s3 = CFArrayGetValueAtIndex(array, S); // expected-warning {{Index is out of bounds}}
// expected-note@-1 {{Index is out of bounds}}
}
void OutOfBoundsConst(const void ** input, CFIndex S) {
CFArrayRef array;
array = CFArrayCreate(kCFAllocatorDefault, input, 3, 0);
const void *s1 = CFArrayGetValueAtIndex(array, 0); // no warning
const void *s2 = CFArrayGetValueAtIndex(array, 2); // no warning
const void *s3 = CFArrayGetValueAtIndex(array, 5); // expected-warning {{Index is out of bounds}}
// expected-note@-1 {{Index is out of bounds}}
// TODO: The solver is probably not strong enough here.
CFIndex sIndex;
for (sIndex = 0 ; sIndex <= 5 ; sIndex += 3 ) {
const void *s = CFArrayGetValueAtIndex(array, sIndex);
}
}
void OutOfBoundsZiro(const void ** input, CFIndex S) {
CFArrayRef array;
// The API allows to set the size to 0. Check that we don't undeflow when the size is 0.
array = CFArrayCreate(kCFAllocatorDefault, 0, 0, 0);
const void *s1 = CFArrayGetValueAtIndex(array, 0); // expected-warning {{Index is out of bounds}}
// expected-note@-1 {{Index is out of bounds}}
}
void TestGetCount(CFArrayRef A, CFIndex sIndex) {
CFIndex sCount = CFArrayGetCount(A); // expected-note{{'sCount' initialized here}}
if (sCount > sIndex) // expected-note{{Assuming 'sCount' is <= 'sIndex'}}
// expected-note@-1{{Taking false branch}}
const void *s1 = CFArrayGetValueAtIndex(A, sIndex);
const void *s2 = CFArrayGetValueAtIndex(A, sCount);// expected-warning {{Index is out of bounds}}
// expected-note@-1 {{Index is out of bounds}}
}
typedef void* XX[3];
void TestPointerToArray(int *elems, void *p1, void *p2, void *p3, unsigned count, void* fn[], char cp[]) {
void* x[] = { p1, p2, p3 };
CFArrayCreate(0, (const void **) &x, count, 0); // no warning
void* y[] = { p1, p2, p3 };
CFArrayCreate(0, (const void **) y, count, 0); // no warning
XX *z = &x;
CFArrayCreate(0, (const void **) z, count, 0); // no warning
CFArrayCreate(0, (const void **) &fn, count, 0); // false negative
CFArrayCreate(0, (const void **) fn, count, 0); // no warning
CFArrayCreate(0, (const void **) cp, count, 0); // expected-warning {{The second argument to 'CFArrayCreate' must be a C array of pointer-sized}}
// expected-note@-1 {{The second argument to 'CFArrayCreate' must be a C array of pointer-sized}}
char cc[] = { 0, 2, 3 };
CFArrayCreate(0, (const void **) &cc, count, 0); // expected-warning {{The second argument to 'CFArrayCreate' must be a C array of pointer-sized}}
// expected-note@-1 {{The second argument to 'CFArrayCreate' must be a C array of pointer-sized}}
CFArrayCreate(0, (const void **) cc, count, 0); // expected-warning {{The second argument to 'CFArrayCreate' must be a C array of pointer-sized}}
// expected-note@-1 {{The second argument to 'CFArrayCreate' must be a C array of pointer-sized}}
}
void TestUndef(CFArrayRef A, CFIndex sIndex, void* x[]) {
unsigned undefVal;
const void *s1 = CFArrayGetValueAtIndex(A, undefVal);
unsigned undefVal2;
CFArrayRef B = CFArrayCreate(0, (const void **) &x, undefVal2, 0);
const void *s2 = CFArrayGetValueAtIndex(B, 2);
}
void TestConst(CFArrayRef A, CFIndex sIndex, void* x[]) {
CFArrayRef B = CFArrayCreate(0, (const void **) &x, 4, 0);
const void *s1 = CFArrayGetValueAtIndex(B, 2);
}
void TestNullArray() {
CFArrayGetValueAtIndex(0, 0);
}
void ArrayRefMutableEscape(CFMutableArrayRef a);
void ArrayRefEscape(CFArrayRef a);
void TestCFMutableArrayRefEscapeViaMutableArgument(CFMutableArrayRef a) {
CFIndex aLen = CFArrayGetCount(a);
ArrayRefMutableEscape(a);
// ArrayRefMutableEscape could mutate a to make it have
// at least aLen + 1 elements, so do not report an error here.
CFArrayGetValueAtIndex(a, aLen);
}
void TestCFMutableArrayRefEscapeViaImmutableArgument(CFMutableArrayRef a) {
CFIndex aLen = CFArrayGetCount(a); // expected-note{{'aLen' initialized here}}
ArrayRefEscape(a);
// ArrayRefEscape is declared to take a CFArrayRef (i.e, an immutable array)
// so we assume it does not change the length of a.
CFArrayGetValueAtIndex(a, aLen); // expected-warning {{Index is out of bounds}}
// expected-note@-1 {{Index is out of bounds}}
}
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