| 1 | // RUN: %clang_cl_asan %Od %s %Fe%t |
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| 2 | // RUN: not %run %t 2>&1 | FileCheck %s |
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| 3 | |
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| 4 | #include <stdio.h> |
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| 5 | #include <string.h> |
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| 6 | #include <malloc.h> |
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| 7 | |
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| 8 | int main() { |
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| 9 | char *ptr = _strdup(s: "Hello" ); |
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| 10 | int subscript = 1; |
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| 11 | ptr[subscript] = '3'; |
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| 12 | printf(format: "%s\n" , ptr); |
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| 13 | fflush(stream: 0); |
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| 14 | // CHECK: H3llo |
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| 15 | |
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| 16 | subscript = -1; |
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| 17 | ptr[subscript] = 42; |
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| 18 | // CHECK: AddressSanitizer: heap-buffer-overflow on address [[ADDR:0x[0-9a-f]+]] |
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| 19 | // CHECK: WRITE of size 1 at [[ADDR]] thread T0 |
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| 20 | // CHECK: {{#0 .* main .*}}intercept_strdup.cpp:[[@LINE-3]] |
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| 21 | // CHECK: [[ADDR]] is located 1 bytes before 6-byte region |
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| 22 | // CHECK: allocated by thread T0 here: |
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| 23 | // |
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| 24 | // The first frame is our wrapper normally but will be malloc in the dynamic |
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| 25 | // config. |
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| 26 | // CHECK: #0 {{.*}} in {{malloc|_strdup}} |
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| 27 | // |
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| 28 | // The local call to _strdup above may be the second or third frame depending |
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| 29 | // on whether we're using the dynamic config. |
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| 30 | // CHECK: #{{[12]}} {{.*}} in main {{.*}}intercept_strdup.cpp:[[@LINE-21]] |
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| 31 | free(ptr: ptr); |
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| 32 | } |
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| 33 | |
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