1 /**
2 * Copyright (C) 2020 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include <dirent.h>
18 #include <dlfcn.h>
19 #include <signal.h>
20 #include <string>
21 #include <common.h>
22 #include <FDK_bitbuffer.h>
23 #define MAX_PATH_LENGTH 1035
24
main()25 int main() {
26 FILE *fp;
27 char path[MAX_PATH_LENGTH];
28 void *libHandle;
29 static int (*real_FDK_getBitCnt)(HANDLE_FDK_BITBUF) = NULL;
30 fp = popen("find / -name libbluetooth.so 2>/dev/null ", "r");
31 if (fp == NULL) {
32 return EXIT_SUCCESS;
33 }
34 while (fgets(path, sizeof(path) - 1, fp) != NULL) {
35 path[strlen(path) - 1] = '\0'; /* remove \n */
36
37 libHandle = dlopen(path, RTLD_LAZY);
38 if (libHandle) {
39 real_FDK_getBitCnt = (int (*)(
40 HANDLE_FDK_BITBUF))dlsym(libHandle, "FDK_getBitCnt");
41 dlclose(libHandle);
42 if (real_FDK_getBitCnt) {
43 pclose(fp);
44 /* The symbol of function is present, it means there is no fix patch */
45 return EXIT_VULNERABLE;
46 }
47 }
48 }
49 pclose(fp);
50 return EXIT_SUCCESS;
51 }
52