1 // Test string s1 overflow in strcspn function 2 // RUN: %clang_asan %s -o %t && %env_asan_opts=strict_string_checks=true not %run %t 2>&1 | FileCheck %s 3 4 // Test intercept_strspn asan option 5 // RUN: %env_asan_opts=intercept_strspn=false %run %t 2>&1 6 7 #include <assert.h> 8 #include <string.h> 9 #include <sanitizer/asan_interface.h> 10 main(int argc,char ** argv)11int main(int argc, char **argv) { 12 size_t r; 13 char s2[] = "ab"; 14 char s1[4] = "caB"; 15 __asan_poison_memory_region ((char *)&s1[2], 2); 16 r = strcspn(s1, s2); 17 // CHECK:'s1' <== Memory access at offset {{[0-9]+}} partially overflows this variable 18 assert(r == 1); 19 return 0; 20 } 21