llvm-project/compiler-rt/test/asan/TestCases/printf-2.c

28 lines
1.0 KiB
C

// RUN: %clang_asan -O2 %s -o %t
// We need replace_str=0, intercept_strlen=0 and replace_intrin=0 to avoid
// reporting errors in strlen() and memcpy() called by printf().
// 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
// 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
// RUN: %env_asan_opts=replace_str=0:intercept_strlen=0:replace_intrin=0 not %run %t 2>&1 | FileCheck --check-prefix=CHECK-ON %s
// FIXME: printf is not intercepted on Windows yet.
// XFAIL: win32
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
int main() {
volatile char c = '0';
volatile int x = 12;
volatile float f = 1.239;
volatile char s[] = "34";
char *p = strdup((const char *)s);
free(p);
printf("%c %d %.3f %s\n", c, x, f, p);
return 0;
// Check that %s is sanitized.
// CHECK-ON: heap-use-after-free
// CHECK-ON-NOT: 0 12 1.239 34
// CHECK-OFF: 0 12 1.239
}