| 1 | // RUN: %clang_asan -O2 %s -o %t |
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| 2 | // We need replace_str=0, intercept_strlen=0 and replace_intrin=0 to avoid |
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| 3 | // reporting errors in strlen() and memcpy() called by printf(). |
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| 4 | // RUN: %env_asan_opts=replace_str=0:intercept_strlen=0:replace_intrin=0:check_printf=1 not %run %t 2>&1 | FileCheck --check-prefix=CHECK-ON %s |
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| 5 | // RUN: %env_asan_opts=replace_str=0:intercept_strlen=0:replace_intrin=0:check_printf=0 %run %t 2>&1 | FileCheck --check-prefix=CHECK-OFF %s |
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| 6 | // RUN: %env_asan_opts=replace_str=0:intercept_strlen=0:replace_intrin=0 not %run %t 2>&1 | FileCheck --check-prefix=CHECK-ON %s |
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| 7 | |
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| 8 | // FIXME: printf is not intercepted on Windows yet. |
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| 9 | // XFAIL: target={{.*windows-(msvc.*|gnu)}} |
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| 10 | |
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| 11 | #include <stdio.h> |
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| 12 | #include <stdlib.h> |
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| 13 | #include <string.h> |
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| 14 | int main() { |
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| 15 | volatile char c = '0'; |
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| 16 | volatile int x = 12; |
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| 17 | volatile float f = 1.239; |
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| 18 | volatile char s[] = "34" ; |
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| 19 | char *p = strdup(s: (const char *)s); |
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| 20 | free(ptr: p); |
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| 21 | printf(format: "%c %d %.3f %s\n" , c, x, f, p); |
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| 22 | return 0; |
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| 23 | // Check that %s is sanitized. |
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| 24 | // CHECK-ON: heap-use-after-free |
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| 25 | // CHECK-ON-NOT: 0 12 1.239 34 |
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| 26 | // CHECK-OFF: 0 12 1.239 |
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| 27 | } |
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| 28 | |
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