1 /*
2 * Copyright (C) 2017 The Android Open Source Project
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in
12 * the documentation and/or other materials provided with the
13 * distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 #include <elf.h>
30 #include <fcntl.h>
31 #include <stdio.h>
32 #include <stdlib.h>
33 #include <sys/stat.h>
34 #include <sys/types.h>
35 #include <unistd.h>
36
37 #include <string>
38
usage(const char * me)39 void usage(const char* me) {
40 static const char* usage_s = "Usage:\n"
41 " %s /system/bin/app_process <args>\n"
42 "or, better:\n"
43 " setprop wrap.<nicename> %s\n";
44 fprintf(stderr, usage_s, me, me);
45 exit(1);
46 }
47
main(int argc,char ** argv)48 int main(int argc, char** argv) {
49 if (argc < 2) {
50 usage(argv[0]);
51 }
52 char** args = new char*[argc];
53 // If we are wrapping app_process, replace it with app_process_asan.
54 // TODO(eugenis): rewrite to <dirname>/asan/<basename>, if exists?
55 if (strcmp(argv[1], "/system/bin/app_process") == 0) {
56 args[0] = (char*)"/system/bin/asan/app_process";
57 } else if (strcmp(argv[1], "/system/bin/app_process32") == 0) {
58 args[0] = (char*)"/system/bin/asan/app_process32";
59 } else if (strcmp(argv[1], "/system/bin/app_process64") == 0) {
60 args[0] = (char*)"/system/bin/asan/app_process64";
61 } else {
62 args[0] = argv[1];
63 }
64
65 for (int i = 1; i < argc - 1; ++i)
66 args[i] = argv[i + 1];
67 args[argc - 1] = 0;
68
69 for (int i = 0; i < argc - 1; ++i)
70 printf("argv[%d] = %s\n", i, args[i]);
71
72 execv(args[0], args);
73 }
74