1 | // RUN: %clangxx_asan -g %s -o %t |
2 | // RUN: not %run %t 1 2>&1 | FileCheck %s --check-prefix=CHECK-FGETS |
3 | // RUN: not %run %t 2 2>&1 | FileCheck %s --check-prefix=CHECK-FPUTS |
4 | // RUN: not %run %t 3 2>&1 | FileCheck %s --check-prefix=CHECK-PUTS |
5 | |
6 | #include <assert.h> |
7 | #include <stdio.h> |
8 | #include <stdlib.h> |
9 | #include <string.h> |
10 | |
11 | int test_fgets(const char *testfile) { |
12 | char buf[2]; |
13 | FILE *fp = fopen(filename: testfile, modes: "r" ); |
14 | assert(fp); |
15 | fgets(s: buf, n: sizeof(buf) + 1, stream: fp); // BOOM |
16 | fclose(stream: fp); |
17 | return 0; |
18 | } |
19 | |
20 | int test_fputs() { |
21 | char buf[1] = {'x'}; // Note: not nul-terminated |
22 | FILE *fp = fopen(filename: "/dev/null" , modes: "w" ); |
23 | assert(fp); |
24 | fputs(s: buf, stream: fp); // BOOM |
25 | fclose(stream: fp); |
26 | return 0; |
27 | } |
28 | |
29 | int test_puts() { |
30 | char *p = strdup(s: "x" ); |
31 | free(ptr: p); |
32 | puts(s: p); // BOOM |
33 | return 0; |
34 | } |
35 | |
36 | int main(int argc, char *argv[]) { |
37 | assert(argc >= 2); |
38 | int testno = argv[1][0] - '0'; |
39 | if (testno == 1) { |
40 | return test_fgets(testfile: argv[0]); |
41 | } |
42 | if (testno == 2) |
43 | return test_fputs(); |
44 | if (testno == 3) |
45 | return test_puts(); |
46 | return 1; |
47 | } |
48 | |
49 | // CHECK-FGETS: {{.*ERROR: AddressSanitizer: stack-buffer-overflow}} |
50 | // CHECK-FGETS: #{{.*}} in {{(wrap_|__interceptor_)?}}fgets |
51 | // CHECK-FPUTS: {{.*ERROR: AddressSanitizer: stack-buffer-overflow}} |
52 | // CHECK-FPUTS: #{{.*}} in {{(wrap_|__interceptor_)?}}fputs |
53 | // CHECK-PUTS: {{.*ERROR: AddressSanitizer: heap-use-after-free}} |
54 | // CHECK-PUTS: #{{.*}} in {{(wrap_|__interceptor_)?}}puts |
55 | |