1 // ASan interceptor can be accessed with __interceptor_ prefix. 2 3 // RUN: %clangxx_asan -O0 %s -o %t && not %t 2>&1 | FileCheck %s 4 // RUN: %clangxx_asan -O1 %s -o %t && not %t 2>&1 | FileCheck %s 5 // RUN: %clangxx_asan -O2 %s -o %t && not %t 2>&1 | FileCheck %s 6 // RUN: %clangxx_asan -O3 %s -o %t && not %t 2>&1 | FileCheck %s 7 #include <stdlib.h> 8 #include <stdio.h> 9 10 extern "C" long __interceptor_strtol(const char *nptr, char **endptr, int base); 11 extern "C" long strtol(const char *nptr, char **endptr, int base) { 12 fprintf(stderr, "my_strtol_interceptor\n"); 13 return __interceptor_strtol(nptr, endptr, base); 14 } 15 16 int main() { 17 char *x = (char*)malloc(10 * sizeof(char)); 18 free(x); 19 return (int)strtol(x, 0, 10); 20 // CHECK: my_strtol_interceptor 21 // CHECK: heap-use-after-free 22 } 23
