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
26
27
28
29
30
31
32
33
34
35
|
// If user provides his own libc functions, ASan doesn't
// intercept these functions.
// RUN: %clangxx_asan -O0 %s -o %t && %run %t 2>&1 | FileCheck %s
// RUN: %clangxx_asan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s
// RUN: %clangxx_asan -O2 %s -o %t && %run %t 2>&1 | FileCheck %s
// RUN: %clangxx_asan -O3 %s -o %t && %run %t 2>&1 | FileCheck %s
// XFAIL: freebsd
// On Windows, defining strtoll in a static build results in linker errors, but
// it works with the dynamic runtime.
// XFAIL: win32-static-asan
// On NetBSD, defining strtol in a static build results in linker errors, but
// it works with the dynamic runtime.
// XFAIL: netbsd && !asan-dynamic-runtime
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
extern "C" long strtol(const char *nptr, char **endptr, int base) {
fprintf(stderr, "my_strtol_interceptor\n");
if (endptr)
*endptr = (char*)nptr + strlen(nptr);
return 0;
}
int main() {
char *x = (char*)malloc(10 * sizeof(char));
free(x);
return (int)strtol(x, 0, 10);
// CHECK: my_strtol_interceptor
// CHECK-NOT: heap-use-after-free
}
|
