1 // RUN: %clangxx_asan -O0 %s -o %t && not %t 2>%t.out 2 // RUN: FileCheck %s < %t.out && FileCheck %s --check-prefix=CHECK-%os < %t.out 3 // RUN: %clangxx_asan -O1 %s -o %t && not %t 2>%t.out 4 // RUN: FileCheck %s < %t.out && FileCheck %s --check-prefix=CHECK-%os < %t.out 5 // RUN: %clangxx_asan -O2 %s -o %t && not %t 2>%t.out 6 // RUN: FileCheck %s < %t.out && FileCheck %s --check-prefix=CHECK-%os < %t.out 7 // RUN: %clangxx_asan -O3 %s -o %t && not %t 2>%t.out 8 // RUN: FileCheck %s < %t.out && FileCheck %s --check-prefix=CHECK-%os < %t.out 9 10 #include <string.h> 11 #include <stdlib.h> 12 int main(int argc, char **argv) { 13 char *hello = (char*)malloc(6); 14 strcpy(hello, "hello"); 15 char *short_buffer = (char*)malloc(9); 16 strncpy(short_buffer, hello, 10); // BOOM 17 // CHECK: {{WRITE of size 10 at 0x.* thread T0}} 18 // CHECK-Linux: {{ #0 0x.* in .*strncpy}} 19 // CHECK-Darwin: {{ #0 0x.* in wrap_strncpy}} 20 // CHECK: {{ #1 0x.* in main .*strncpy-overflow.cc:}}[[@LINE-4]] 21 // CHECK: {{0x.* is located 0 bytes to the right of 9-byte region}} 22 // CHECK: {{allocated by thread T0 here:}} 23 24 // CHECK-Linux: {{ #0 0x.* in .*malloc}} 25 // CHECK-Linux: {{ #1 0x.* in main .*strncpy-overflow.cc:}}[[@LINE-10]] 26 27 // CHECK-Darwin: {{ #0 0x.* in wrap_malloc.*}} 28 // CHECK-Darwin: {{ #1 0x.* in main .*strncpy-overflow.cc:}}[[@LINE-13]] 29 return short_buffer[8]; 30 } 31
