projects / cycript.git / blame
| Commit | Line | Data |
|---|---|---|
| 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 | ||
| 32 | extern "C" void CYHandleServer(pid_t pid) { | |
| 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 | ||
| 40 | const char *ext(strrchr(fname, '.')); | |
| 41 | size_t prefix(ext - fname); | |
| 42 | ||
| 43 | const char *addition; | |
| 44 | #ifdef __APPLE__ | |
| 45 | // XXX: THIS IS HORRIBLE OMG I NEED TO FIX THIS ASAP | |
| 46 | bool simulator(false); | |
| 47 | for (uint32_t i(0), e(_dyld_image_count()); i != e; ++i) { | |
| 48 | if (strstr(_dyld_get_image_name(i), "/SDKs/iPhoneSimulator") != NULL) | |
| 49 | simulator = true; | |
| 50 | } | |
| 51 | if (simulator) | |
| 52 | addition = "-sim"; | |
| 53 | else | |
| 54 | #endif | |
| 55 | // someone threw a fit about dangling #endif + else | |
| 56 | // the idea that this bothers someone gives me glee | |
| 57 | addition = "-sys"; | |
| 58 | ||
| 59 | char library[length + 5]; | |
| 60 | memcpy(library, fname, prefix); | |
| 61 | memcpy(library + prefix, addition, 4); | |
| 62 | memcpy(library + prefix + 4, fname + prefix, length - prefix); | |
| 63 | library[length + 4] = '\0'; | |
| 64 | ||
| 65 | void *handle(dlopen(library, RTLD_LOCAL | RTLD_LAZY)); | |
| 66 | if (handle == NULL) { | |
| 67 | syslog(LOG_ERR, "dlopen() -> %s", dlerror()); | |
| 68 | return; | |
| 69 | } | |
| 70 | ||
| 71 | void *symbol(dlsym(handle, "CYHandleServer")); | |
| 72 | if (symbol == NULL) | |
| 73 | return; | |
| 74 | ||
| 75 | reinterpret_cast<void (*)(pid_t)>(symbol)(pid); | |
| 76 | } |