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604ed881 JF |
1 | /* Cycript - Optimizing JavaScript Compiler/Runtime |
2 | * Copyright (C) 2009-2013 Jay Freeman (saurik) | |
3 | */ | |
4 | ||
5 | /* GNU General Public License, Version 3 {{{ */ | |
6 | /* | |
7 | * Cycript is free software: you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published | |
9 | * by the Free Software Foundation, either version 3 of the License, | |
10 | * or (at your option) any later version. | |
11 | * | |
12 | * Cycript is distributed in the hope that it will be useful, but | |
13 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with Cycript. If not, see <http://www.gnu.org/licenses/>. | |
19 | **/ | |
20 | /* }}} */ | |
21 | ||
22 | #include <cstring> | |
23 | ||
24 | #include <stdint.h> | |
25 | ||
26 | #include <dlfcn.h> | |
27 | #include <syslog.h> | |
28 | #include <unistd.h> | |
29 | ||
30 | #include <mach-o/dyld.h> | |
31 | ||
8e8e69a7 | 32 | extern "C" void CYHandleServer(pid_t pid, char *data, size_t size) { |
604ed881 JF |
33 | Dl_info addr; |
34 | if (dladdr(reinterpret_cast<void *>(&CYHandleServer), &addr) == 0) | |
35 | return; | |
36 | ||
37 | const char *fname(addr.dli_fname); | |
38 | size_t length(strlen(fname)); | |
39 | ||
3370d0c0 | 40 | const char *target; |
604ed881 JF |
41 | #ifdef __APPLE__ |
42 | // XXX: THIS IS HORRIBLE OMG I NEED TO FIX THIS ASAP | |
43 | bool simulator(false); | |
44 | for (uint32_t i(0), e(_dyld_image_count()); i != e; ++i) { | |
45 | if (strstr(_dyld_get_image_name(i), "/SDKs/iPhoneSimulator") != NULL) | |
46 | simulator = true; | |
47 | } | |
48 | if (simulator) | |
3370d0c0 | 49 | target = "sim"; |
604ed881 JF |
50 | else |
51 | #endif | |
52 | // someone threw a fit about dangling #endif + else | |
53 | // the idea that this bothers someone gives me glee | |
3370d0c0 | 54 | target = "sys"; |
604ed881 | 55 | |
3370d0c0 JF |
56 | char library[length + 1]; |
57 | memcpy(library, fname, length); | |
58 | memcpy(library + length - 6 - 3, target, 3); | |
59 | library[length] = '\0'; | |
604ed881 JF |
60 | |
61 | void *handle(dlopen(library, RTLD_LOCAL | RTLD_LAZY)); | |
62 | if (handle == NULL) { | |
8e8e69a7 | 63 | strlcpy(data, dlerror(), size); |
604ed881 JF |
64 | return; |
65 | } | |
66 | ||
67 | void *symbol(dlsym(handle, "CYHandleServer")); | |
8e8e69a7 JF |
68 | if (symbol == NULL) { |
69 | strlcpy(data, dlerror(), size); | |
604ed881 | 70 | return; |
8e8e69a7 | 71 | } |
604ed881 JF |
72 | |
73 | reinterpret_cast<void (*)(pid_t)>(symbol)(pid); | |
74 | } |