1 // RUN: %clang_analyze_cc1 -triple x86_64-apple-darwin -analyzer-output=text\
2 // RUN: -analyzer-checker=osx.coreFoundation.containers.PointerSizedValues\
3 // RUN: -analyzer-checker=osx.coreFoundation.containers.OutOfBounds\
6 typedef const struct __CFAllocator * CFAllocatorRef;
7 typedef const struct __CFString * CFStringRef;
8 typedef unsigned char Boolean;
9 typedef signed long CFIndex;
11 const CFAllocatorRef kCFAllocatorDefault;
12 typedef const void * (*CFArrayRetainCallBack)(CFAllocatorRef allocator, const void *value);
13 typedef void (*CFArrayReleaseCallBack)(CFAllocatorRef allocator, const void *value);
14 typedef CFStringRef (*CFArrayCopyDescriptionCallBack)(const void *value);
15 typedef Boolean (*CFArrayEqualCallBack)(const void *value1, const void *value2);
18 CFArrayRetainCallBack retain;
19 CFArrayReleaseCallBack release;
20 CFArrayCopyDescriptionCallBack copyDescription;
21 CFArrayEqualCallBack equal;
23 typedef const struct __CFArray * CFArrayRef;
24 CFArrayRef CFArrayCreate(CFAllocatorRef allocator, const void **values, CFIndex numValues, const CFArrayCallBacks *callBacks);
25 typedef struct __CFArray * CFMutableArrayRef;
26 typedef const struct __CFString * CFStringRef;
28 kCFNumberSInt8Type = 1,
29 kCFNumberSInt16Type = 2,
30 kCFNumberSInt32Type = 3,
31 kCFNumberSInt64Type = 4,
32 kCFNumberFloat32Type = 5,
33 kCFNumberFloat64Type = 6,
34 kCFNumberCharType = 7,
35 kCFNumberShortType = 8,
37 kCFNumberLongType = 10,
38 kCFNumberLongLongType = 11,
39 kCFNumberFloatType = 12,
40 kCFNumberDoubleType = 13,
41 kCFNumberCFIndexType = 14,
42 kCFNumberNSIntegerType = 15,
43 kCFNumberCGFloatType = 16,
46 typedef CFIndex CFNumberType;
47 typedef const struct __CFNumber * CFNumberRef;
48 typedef CFIndex CFComparisonResult;
49 typedef const struct __CFDictionary * CFDictionaryRef;
50 typedef const void * (*CFDictionaryRetainCallBack)(CFAllocatorRef allocator, const void *value);
51 typedef void (*CFDictionaryReleaseCallBack)(CFAllocatorRef allocator, const void *value);
52 typedef CFStringRef (*CFDictionaryCopyDescriptionCallBack)(const void *value);
53 typedef Boolean (*CFDictionaryEqualCallBack)(const void *value1, const void *value2);
54 typedef Boolean (*CFArrayEqualCallBack)(const void *value1, const void *value2);
55 typedef Boolean (*CFSetEqualCallBack)(const void *value1, const void *value2);
56 typedef const void * (*CFSetRetainCallBack)(CFAllocatorRef allocator, const void *value);
57 typedef void (*CFSetReleaseCallBack)(CFAllocatorRef allocator, const void *value);
58 typedef CFStringRef (*CFSetCopyDescriptionCallBack)(const void *value);
61 CFSetRetainCallBack retain;
62 CFSetReleaseCallBack release;
63 CFSetCopyDescriptionCallBack copyDescription;
64 CFSetEqualCallBack equal;
68 CFDictionaryRetainCallBack retain;
69 CFDictionaryReleaseCallBack release;
70 CFDictionaryCopyDescriptionCallBack copyDescription;
71 CFDictionaryEqualCallBack equal;
72 } CFDictionaryKeyCallBacks;
75 CFDictionaryRetainCallBack retain;
76 CFDictionaryReleaseCallBack release;
77 CFDictionaryCopyDescriptionCallBack copyDescription;
78 CFDictionaryEqualCallBack equal;
79 } CFDictionaryValueCallBacks;
80 CFDictionaryRef CFDictionaryCreate(CFAllocatorRef allocator, const void **keys, const void **values, CFIndex numValues, const CFDictionaryKeyCallBacks *keyCallBacks, const CFDictionaryValueCallBacks *valueCallBacks);
82 const CFDictionaryValueCallBacks kCFTypeDictionaryValueCallBacks;
83 typedef const struct __CFSet * CFSetRef;
85 const CFSetCallBacks kCFTypeSetCallBacks;
87 const CFDictionaryKeyCallBacks kCFCopyStringDictionaryKeyCallBacks;
89 const void *CFArrayGetValueAtIndex(CFArrayRef theArray, CFIndex idx);
91 CFIndex CFArrayGetCount(CFArrayRef theArray);
92 CFDictionaryRef CFDictionaryCreate(CFAllocatorRef allocator, const void **keys, const void **values, CFIndex numValues, const
93 CFDictionaryKeyCallBacks *keyCallBacks, const CFDictionaryValueCallBacks *valueCallBacks);
94 CFNumberRef CFNumberCreate(CFAllocatorRef allocator, CFNumberType theType, const void *valuePtr);
96 CFSetRef CFSetCreate(CFAllocatorRef allocator, const void **values, CFIndex numValues, const CFSetCallBacks *callBacks);
97 #define CFSTR(cStr) ((CFStringRef) __builtin___CFStringMakeConstantString ("" cStr ""))
100 // Done with the headers.
101 // Test alpha.osx.cocoa.ContainerAPI checker.
102 void testContainers(int **xNoWarn, CFIndex count) {
103 int x[] = { 1, 2, 3 };
104 CFArrayRef foo = CFArrayCreate(kCFAllocatorDefault, (const void **) x, sizeof(x) / sizeof(x[0]), 0);
105 // expected-warning@-1 {{The second argument to 'CFArrayCreate' must be a C array of pointer-sized}}
106 // expected-note@-2 {{The second argument to 'CFArrayCreate' must be a C array of pointer-sized}}
108 CFArrayRef fooNoWarn = CFArrayCreate(kCFAllocatorDefault, (const void **) xNoWarn, sizeof(xNoWarn) / sizeof(xNoWarn[0]), 0); // no warning
109 CFArrayRef fooNoWarn2 = CFArrayCreate(kCFAllocatorDefault, 0, sizeof(xNoWarn) / sizeof(xNoWarn[0]), 0);// no warning, passing in 0
110 CFArrayRef fooNoWarn3 = CFArrayCreate(kCFAllocatorDefault, NULL, sizeof(xNoWarn) / sizeof(xNoWarn[0]), 0);// no warning, passing in NULL
112 CFSetRef set = CFSetCreate(NULL, (const void **)x, 3, &kCFTypeSetCallBacks);
113 // expected-warning@-1 {{The second argument to 'CFSetCreate' must be a C array of pointer-sized values}}
114 // expected-note@-2 {{The second argument to 'CFSetCreate' must be a C array of pointer-sized values}}
115 CFArrayRef* pairs = new CFArrayRef[count];
116 CFSetRef fSet = CFSetCreate(kCFAllocatorDefault, (const void**) pairs, count - 1, &kCFTypeSetCallBacks);// no warning
119 void CreateDict(int *elems) {
120 const short days28 = 28;
121 const short days30 = 30;
122 const short days31 = 31;
123 CFIndex numValues = 6;
125 CFNumberRef values[6];
126 keys[0] = CFSTR("January"); values[0] = CFNumberCreate(kCFAllocatorDefault, kCFNumberShortType, &days31);
127 keys[1] = CFSTR("February"); values[1] = CFNumberCreate(kCFAllocatorDefault, kCFNumberShortType, &days28);
128 keys[2] = CFSTR("March"); values[2] = CFNumberCreate(kCFAllocatorDefault, kCFNumberShortType, &days31);
129 keys[3] = CFSTR("April"); values[3] = CFNumberCreate(kCFAllocatorDefault, kCFNumberShortType, &days30);
130 keys[4] = CFSTR("May"); values[4] = CFNumberCreate(kCFAllocatorDefault, kCFNumberShortType, &days31);
131 keys[5] = CFSTR("June"); values[5] = CFNumberCreate(kCFAllocatorDefault, kCFNumberShortType, &days30);
133 const CFDictionaryKeyCallBacks keyCB = kCFCopyStringDictionaryKeyCallBacks;
134 const CFDictionaryValueCallBacks valCB = kCFTypeDictionaryValueCallBacks;
135 CFDictionaryRef dict1 = CFDictionaryCreate(kCFAllocatorDefault, (const void**)keys, (const void**)values, numValues, &keyCB, &valCB); // no warning
136 CFDictionaryRef dict2 = CFDictionaryCreate(kCFAllocatorDefault, (const void**)elems[0], (const void**)values, numValues, &keyCB, &valCB);
137 // expected-warning@-1 {{The second argument to 'CFDictionaryCreate' must be a C array of}}
138 // expected-note@-2 {{The second argument to 'CFDictionaryCreate' must be a C array of}}
139 // expected-warning@-3{{cast to 'const void **' from smaller integer type 'int'}}
140 CFDictionaryRef dict3 = CFDictionaryCreate(kCFAllocatorDefault, (const void**)keys, (const void**)elems, numValues, &keyCB, &valCB);
141 // expected-warning@-1 {{The third argument to 'CFDictionaryCreate' must be a C array of pointer-sized values}}
142 // expected-note@-2 {{The third argument to 'CFDictionaryCreate' must be a C array of pointer-sized values}}
145 void OutOfBoundsSymbolicOffByOne(const void ** input, CFIndex S) {
147 array = CFArrayCreate(kCFAllocatorDefault, input, S, 0);
148 const void *s1 = CFArrayGetValueAtIndex(array, 0); // no warning
149 const void *s2 = CFArrayGetValueAtIndex(array, S-1); // no warning
150 const void *s3 = CFArrayGetValueAtIndex(array, S); // expected-warning {{Index is out of bounds}}
151 // expected-note@-1 {{Index is out of bounds}}
154 void OutOfBoundsConst(const void ** input, CFIndex S) {
156 array = CFArrayCreate(kCFAllocatorDefault, input, 3, 0);
157 const void *s1 = CFArrayGetValueAtIndex(array, 0); // no warning
158 const void *s2 = CFArrayGetValueAtIndex(array, 2); // no warning
159 const void *s3 = CFArrayGetValueAtIndex(array, 5); // expected-warning {{Index is out of bounds}}
160 // expected-note@-1 {{Index is out of bounds}}
162 // TODO: The solver is probably not strong enough here.
164 for (sIndex = 0 ; sIndex <= 5 ; sIndex += 3 ) {
165 const void *s = CFArrayGetValueAtIndex(array, sIndex);
169 void OutOfBoundsZiro(const void ** input, CFIndex S) {
171 // The API allows to set the size to 0. Check that we don't undeflow when the size is 0.
172 array = CFArrayCreate(kCFAllocatorDefault, 0, 0, 0);
173 const void *s1 = CFArrayGetValueAtIndex(array, 0); // expected-warning {{Index is out of bounds}}
174 // expected-note@-1 {{Index is out of bounds}}
177 void TestGetCount(CFArrayRef A, CFIndex sIndex) {
178 CFIndex sCount = CFArrayGetCount(A); // expected-note{{'sCount' initialized here}}
179 if (sCount > sIndex) // expected-note{{Assuming 'sCount' is <= 'sIndex'}}
180 // expected-note@-1{{Taking false branch}}
181 const void *s1 = CFArrayGetValueAtIndex(A, sIndex);
182 const void *s2 = CFArrayGetValueAtIndex(A, sCount);// expected-warning {{Index is out of bounds}}
183 // expected-note@-1 {{Index is out of bounds}}
187 void TestPointerToArray(int *elems, void *p1, void *p2, void *p3, unsigned count, void* fn[], char cp[]) {
188 void* x[] = { p1, p2, p3 };
189 CFArrayCreate(0, (const void **) &x, count, 0); // no warning
191 void* y[] = { p1, p2, p3 };
192 CFArrayCreate(0, (const void **) y, count, 0); // no warning
194 CFArrayCreate(0, (const void **) z, count, 0); // no warning
196 CFArrayCreate(0, (const void **) &fn, count, 0); // false negative
197 CFArrayCreate(0, (const void **) fn, count, 0); // no warning
198 CFArrayCreate(0, (const void **) cp, count, 0); // expected-warning {{The second argument to 'CFArrayCreate' must be a C array of pointer-sized}}
199 // expected-note@-1 {{The second argument to 'CFArrayCreate' must be a C array of pointer-sized}}
201 char cc[] = { 0, 2, 3 };
202 CFArrayCreate(0, (const void **) &cc, count, 0); // expected-warning {{The second argument to 'CFArrayCreate' must be a C array of pointer-sized}}
203 // expected-note@-1 {{The second argument to 'CFArrayCreate' must be a C array of pointer-sized}}
204 CFArrayCreate(0, (const void **) cc, count, 0); // expected-warning {{The second argument to 'CFArrayCreate' must be a C array of pointer-sized}}
205 // expected-note@-1 {{The second argument to 'CFArrayCreate' must be a C array of pointer-sized}}
208 void TestUndef(CFArrayRef A, CFIndex sIndex, void* x[]) {
210 const void *s1 = CFArrayGetValueAtIndex(A, undefVal);
213 CFArrayRef B = CFArrayCreate(0, (const void **) &x, undefVal2, 0);
214 const void *s2 = CFArrayGetValueAtIndex(B, 2);
217 void TestConst(CFArrayRef A, CFIndex sIndex, void* x[]) {
218 CFArrayRef B = CFArrayCreate(0, (const void **) &x, 4, 0);
219 const void *s1 = CFArrayGetValueAtIndex(B, 2);
223 void TestNullArray() {
224 CFArrayGetValueAtIndex(0, 0);
227 void ArrayRefMutableEscape(CFMutableArrayRef a);
228 void ArrayRefEscape(CFArrayRef a);
230 void TestCFMutableArrayRefEscapeViaMutableArgument(CFMutableArrayRef a) {
231 CFIndex aLen = CFArrayGetCount(a);
232 ArrayRefMutableEscape(a);
234 // ArrayRefMutableEscape could mutate a to make it have
235 // at least aLen + 1 elements, so do not report an error here.
236 CFArrayGetValueAtIndex(a, aLen);
239 void TestCFMutableArrayRefEscapeViaImmutableArgument(CFMutableArrayRef a) {
240 CFIndex aLen = CFArrayGetCount(a); // expected-note{{'aLen' initialized here}}
243 // ArrayRefEscape is declared to take a CFArrayRef (i.e, an immutable array)
244 // so we assume it does not change the length of a.
245 CFArrayGetValueAtIndex(a, aLen); // expected-warning {{Index is out of bounds}}
246 // expected-note@-1 {{Index is out of bounds}}