1 // RUN: %clang_asan -O2 %s -o %t 2 // RUN: %env_asan_opts=check_printf=1 not %run %t 2>&1 | FileCheck --check-prefix=CHECK-ON %s 3 // RUN: not %run %t 2>&1 | FileCheck --check-prefix=CHECK-ON %s 4 5 // FIXME: sprintf is not intercepted on Windows yet. 6 // XFAIL: win32 7 8 #include <stdio.h> 9 int main() { 10 volatile char c = '0'; 11 volatile int x = 12; 12 volatile float f = 1.239; 13 volatile char s[] = "34"; 14 volatile char buf[2]; 15 fputs("before sprintf\n", stderr); 16 sprintf((char *)buf, "%c %d %.3f %s\n", c, x, f, s); 17 fputs("after sprintf", stderr); 18 fputs((const char *)buf, stderr); 19 return 0; 20 // Check that size of output buffer is sanitized. 21 // CHECK-ON: before sprintf 22 // CHECK-ON-NOT: after sprintf 23 // CHECK-ON: stack-buffer-overflow 24 // CHECK-ON-NOT: 0 12 1.239 34 25 } 26
