blob: dccfbcde7709a5abd043f83dbf1e8d0560198f1d (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
|
// Test haystack overflow in strcasestr function
// RUN: %clang_asan %s -o %t && %env_asan_opts=strict_string_checks=true not %run %t 2>&1 | FileCheck %s
// Test intercept_strstr asan option
// Disable other interceptors because strlen may be called inside strcasestr
// RUN: %env_asan_opts=intercept_strstr=false:replace_str=false %run %t 2>&1
// There's no interceptor for strcasestr on Windows
// XFAIL: win32
#define _GNU_SOURCE
#include <assert.h>
#include <string.h>
#include <sanitizer/asan_interface.h>
int main(int argc, char **argv) {
char *r = 0;
char s2[] = "c";
char s1[4] = "abC";
__asan_poison_memory_region ((char *)&s1[2], 2);
r = strcasestr(s1, s2);
// CHECK:'s1'{{.*}} <== Memory access at offset {{[0-9]+}} partially overflows this variable
assert(r == s1 + 2);
return 0;
}
|
