derek.holloway
7502bf64a4
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37 lines
2.0 KiB
Objective-C
37 lines
2.0 KiB
Objective-C
// RUN: %clang_analyze_cc1 -triple thumbv7-apple-ios11.0 -verify=available \
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// RUN: -analyzer-checker=security.insecureAPI.decodeValueOfObjCType %s
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// RUN: %clang_analyze_cc1 -triple thumbv7-apple-ios10.0 -verify=notavailable \
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// RUN: -analyzer-checker=security.insecureAPI.decodeValueOfObjCType %s
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// RUN: %clang_analyze_cc1 -triple x86_64-apple-macos10.13 -verify=available \
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// RUN: -analyzer-checker=security.insecureAPI.decodeValueOfObjCType %s
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// RUN: %clang_analyze_cc1 -triple x86_64-apple-macos10.12 -verify=notavailable \
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// RUN: -analyzer-checker=security.insecureAPI.decodeValueOfObjCType %s
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// RUN: %clang_analyze_cc1 -triple thumbv7-apple-watchos4.0 -verify=available \
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// RUN: -analyzer-checker=security.insecureAPI.decodeValueOfObjCType %s
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// RUN: %clang_analyze_cc1 -triple thumbv7-apple-watchos3.0 -verify=notavailable \
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// RUN: -analyzer-checker=security.insecureAPI.decodeValueOfObjCType %s
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// RUN: %clang_analyze_cc1 -triple thumbv7-apple-tvos11.0 -verify=available \
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// RUN: -analyzer-checker=security.insecureAPI.decodeValueOfObjCType %s
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// RUN: %clang_analyze_cc1 -triple thumbv7-apple-tvos10.0 -verify=notavailable \
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// RUN: -analyzer-checker=security.insecureAPI.decodeValueOfObjCType %s
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// notavailable-no-diagnostics
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typedef unsigned long NSUInteger;
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@interface NSCoder
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- (void)decodeValueOfObjCType:(const char *)type
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at:(void *)data;
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- (void)decodeValueOfObjCType:(const char *)type
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at:(void *)data
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size:(NSUInteger)size;
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@end
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void test(NSCoder *decoder) {
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// This would be a vulnerability on 64-bit platforms
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// but not on 32-bit platforms.
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NSUInteger x;
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[decoder decodeValueOfObjCType:"I" at:&x]; // available-warning{{Deprecated method '-decodeValueOfObjCType:at:' is insecure as it can lead to potential buffer overflows. Use the safer '-decodeValueOfObjCType:at:size:' method}}
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[decoder decodeValueOfObjCType:"I" at:&x size:sizeof(x)]; // no-warning
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}
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