├── README ├── AUTHORS ├── python-client ├── usbmux.pyc ├── tcprelay.py └── usbmux.py ├── COPYING.GPLv2 └── COPYING.GPLv3 /README: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/rcg4u/iphonessh/HEAD/README -------------------------------------------------------------------------------- /AUTHORS: -------------------------------------------------------------------------------- 1 | Nikias Bassen 2 | Hector Martin 3 | Bastien Nocera 4 | Paul Sladen 5 | Martin Szulecki 6 | -------------------------------------------------------------------------------- /python-client/usbmux.pyc: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/rcg4u/iphonessh/HEAD/python-client/usbmux.pyc -------------------------------------------------------------------------------- /python-client/tcprelay.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/python 2 | # -*- coding: utf-8 -*- 3 | # 4 | # tcprelay.py - TCP connection relay for usbmuxd 5 | # 6 | # Copyright (C) 2009 Hector Martin "marcan" 7 | # 8 | # This program is free software; you can redistribute it and/or modify 9 | # it under the terms of the GNU General Public License as published by 10 | # the Free Software Foundation, either version 2 or version 3. 11 | # 12 | # This program is distributed in the hope that it will be useful, 13 | # but 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 this program; if not, write to the Free Software 19 | # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 20 | 21 | import usbmux 22 | import SocketServer 23 | import select 24 | from optparse import OptionParser 25 | import sys 26 | import threading 27 | 28 | class SocketRelay(object): 29 | def __init__(self, a, b, maxbuf=65535): 30 | self.a = a 31 | self.b = b 32 | self.atob = "" 33 | self.btoa = "" 34 | self.maxbuf = maxbuf 35 | def handle(self): 36 | while True: 37 | rlist = [] 38 | wlist = [] 39 | xlist = [self.a, self.b] 40 | if self.atob: 41 | wlist.append(self.b) 42 | if self.btoa: 43 | wlist.append(self.a) 44 | if len(self.atob) < self.maxbuf: 45 | rlist.append(self.a) 46 | if len(self.btoa) < self.maxbuf: 47 | rlist.append(self.b) 48 | rlo, wlo, xlo = select.select(rlist, wlist, xlist) 49 | if xlo: 50 | return 51 | if self.a in wlo: 52 | n = self.a.send(self.btoa) 53 | self.btoa = self.btoa[n:] 54 | if self.b in wlo: 55 | n = self.b.send(self.atob) 56 | self.atob = self.atob[n:] 57 | if self.a in rlo: 58 | s = self.a.recv(self.maxbuf - len(self.atob)) 59 | if not s: 60 | return 61 | self.atob += s 62 | if self.b in rlo: 63 | s = self.b.recv(self.maxbuf - len(self.btoa)) 64 | if not s: 65 | return 66 | self.btoa += s 67 | #print "Relay iter: %8d atob, %8d btoa, lists: %r %r %r"%(len(self.atob), len(self.btoa), rlo, wlo, xlo) 68 | 69 | class TCPRelay(SocketServer.BaseRequestHandler): 70 | def handle(self): 71 | print "Incoming connection to %d"%self.server.server_address[1] 72 | mux = usbmux.USBMux(options.sockpath) 73 | print "Waiting for devices..." 74 | if not mux.devices: 75 | mux.process(1.0) 76 | if not mux.devices: 77 | print "No device found" 78 | self.request.close() 79 | return 80 | dev = mux.devices[0] 81 | print "Connecting to device %s"%str(dev) 82 | dsock = mux.connect(dev, self.server.rport) 83 | lsock = self.request 84 | print "Connection established, relaying data" 85 | try: 86 | fwd = SocketRelay(dsock, lsock, self.server.bufsize * 1024) 87 | fwd.handle() 88 | finally: 89 | dsock.close() 90 | lsock.close() 91 | print "Connection closed" 92 | 93 | class TCPServer(SocketServer.TCPServer): 94 | allow_reuse_address = True 95 | 96 | class ThreadedTCPServer(SocketServer.ThreadingMixIn, TCPServer): 97 | pass 98 | 99 | HOST = "localhost" 100 | 101 | parser = OptionParser(usage="usage: %prog [OPTIONS] RemotePort[:LocalPort] [RemotePort[:LocalPort]]...") 102 | parser.add_option("-t", "--threaded", dest='threaded', action='store_true', default=False, help="use threading to handle multiple connections at once") 103 | parser.add_option("-b", "--bufsize", dest='bufsize', action='store', metavar='KILOBYTES', type='int', default=128, help="specify buffer size for socket forwarding") 104 | parser.add_option("-s", "--socket", dest='sockpath', action='store', metavar='PATH', type='str', default=None, help="specify the path of the usbmuxd socket") 105 | 106 | options, args = parser.parse_args() 107 | 108 | serverclass = TCPServer 109 | if options.threaded: 110 | serverclass = ThreadedTCPServer 111 | 112 | if len(args) == 0: 113 | parser.print_help() 114 | sys.exit(1) 115 | 116 | ports = [] 117 | 118 | for arg in args: 119 | try: 120 | if ':' in arg: 121 | rport, lport = arg.split(":") 122 | rport = int(rport) 123 | lport = int(lport) 124 | ports.append((rport, lport)) 125 | else: 126 | ports.append((int(arg), int(arg))) 127 | except: 128 | parser.print_help() 129 | sys.exit(1) 130 | 131 | servers=[] 132 | 133 | for rport, lport in ports: 134 | print "Forwarding local port %d to remote port %d"%(lport, rport) 135 | server = serverclass((HOST, lport), TCPRelay) 136 | server.rport = rport 137 | server.bufsize = options.bufsize 138 | servers.append(server) 139 | 140 | alive = True 141 | 142 | while alive: 143 | try: 144 | rl, wl, xl = select.select(servers, [], []) 145 | for server in rl: 146 | server.handle_request() 147 | except: 148 | alive = False 149 | -------------------------------------------------------------------------------- /python-client/usbmux.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/python 2 | # -*- coding: utf-8 -*- 3 | # 4 | # usbmux.py - usbmux client library for Python 5 | # 6 | # Copyright (C) 2009 Hector Martin "marcan" 7 | # 8 | # This program is free software; you can redistribute it and/or modify 9 | # it under the terms of the GNU General Public License as published by 10 | # the Free Software Foundation, either version 2 or version 3. 11 | # 12 | # This program is distributed in the hope that it will be useful, 13 | # but 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 this program; if not, write to the Free Software 19 | # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 20 | 21 | import socket, struct, select, sys 22 | 23 | try: 24 | import plistlib 25 | haveplist = True 26 | except: 27 | haveplist = False 28 | 29 | class MuxError(Exception): 30 | pass 31 | 32 | class MuxVersionError(MuxError): 33 | pass 34 | 35 | class SafeStreamSocket: 36 | def __init__(self, address, family): 37 | self.sock = socket.socket(family, socket.SOCK_STREAM) 38 | self.sock.connect(address) 39 | def send(self, msg): 40 | totalsent = 0 41 | while totalsent < len(msg): 42 | sent = self.sock.send(msg[totalsent:]) 43 | if sent == 0: 44 | raise MuxError("socket connection broken") 45 | totalsent = totalsent + sent 46 | def recv(self, size): 47 | msg = '' 48 | while len(msg) < size: 49 | chunk = self.sock.recv(size-len(msg)) 50 | if chunk == '': 51 | raise MuxError("socket connection broken") 52 | msg = msg + chunk 53 | return msg 54 | 55 | class MuxDevice(object): 56 | def __init__(self, devid, usbprod, serial, location): 57 | self.devid = devid 58 | self.usbprod = usbprod 59 | self.serial = serial 60 | self.location = location 61 | def __str__(self): 62 | return ""%(self.devid, self.usbprod, self.serial, self.location) 63 | 64 | class BinaryProtocol(object): 65 | TYPE_RESULT = 1 66 | TYPE_CONNECT = 2 67 | TYPE_LISTEN = 3 68 | TYPE_DEVICE_ADD = 4 69 | TYPE_DEVICE_REMOVE = 5 70 | VERSION = 0 71 | def __init__(self, socket): 72 | self.socket = socket 73 | self.connected = False 74 | 75 | def _pack(self, req, payload): 76 | if req == self.TYPE_CONNECT: 77 | return struct.pack("IH", payload['DeviceID'], payload['PortNumber']) + "\x00\x00" 78 | elif req == self.TYPE_LISTEN: 79 | return "" 80 | else: 81 | raise ValueError("Invalid outgoing request type %d"%req) 82 | 83 | def _unpack(self, resp, payload): 84 | if resp == self.TYPE_RESULT: 85 | return {'Number':struct.unpack("I", payload)[0]} 86 | elif resp == self.TYPE_DEVICE_ADD: 87 | devid, usbpid, serial, pad, location = struct.unpack("IH256sHI", payload) 88 | serial = serial.split("\0")[0] 89 | return {'DeviceID': devid, 'Properties': {'LocationID': location, 'SerialNumber': serial, 'ProductID': usbpid}} 90 | elif resp == self.TYPE_DEVICE_REMOVE: 91 | devid = struct.unpack("I", payload)[0] 92 | return {'DeviceID': devid} 93 | else: 94 | raise MuxError("Invalid incoming request type %d"%req) 95 | 96 | def sendpacket(self, req, tag, payload={}): 97 | payload = self._pack(req, payload) 98 | if self.connected: 99 | raise MuxError("Mux is connected, cannot issue control packets") 100 | length = 16 + len(payload) 101 | data = struct.pack("IIII", length, self.VERSION, req, tag) + payload 102 | self.socket.send(data) 103 | def getpacket(self): 104 | if self.connected: 105 | raise MuxError("Mux is connected, cannot issue control packets") 106 | dlen = self.socket.recv(4) 107 | dlen = struct.unpack("I", dlen)[0] 108 | body = self.socket.recv(dlen - 4) 109 | version, resp, tag = struct.unpack("III",body[:0xc]) 110 | if version != self.VERSION: 111 | raise MuxVersionError("Version mismatch: expected %d, got %d"%(self.VERSION,version)) 112 | payload = self._unpack(resp, body[0xc:]) 113 | return (resp, tag, payload) 114 | 115 | class PlistProtocol(BinaryProtocol): 116 | TYPE_RESULT = "Result" 117 | TYPE_CONNECT = "Connect" 118 | TYPE_LISTEN = "Listen" 119 | TYPE_DEVICE_ADD = "Attached" 120 | TYPE_DEVICE_REMOVE = "Detached" #??? 121 | TYPE_PLIST = 8 122 | VERSION = 1 123 | def __init__(self, socket): 124 | if not haveplist: 125 | raise Exception("You need the plistlib module") 126 | BinaryProtocol.__init__(self, socket) 127 | 128 | def _pack(self, req, payload): 129 | return payload 130 | 131 | def _unpack(self, resp, payload): 132 | return payload 133 | 134 | def sendpacket(self, req, tag, payload={}): 135 | payload['ClientVersionString'] = 'usbmux.py by marcan' 136 | if isinstance(req, int): 137 | req = [self.TYPE_CONNECT, self.TYPE_LISTEN][req-2] 138 | payload['MessageType'] = req 139 | payload['ProgName'] = 'tcprelay' 140 | BinaryProtocol.sendpacket(self, self.TYPE_PLIST, tag, plistlib.writePlistToString(payload)) 141 | def getpacket(self): 142 | resp, tag, payload = BinaryProtocol.getpacket(self) 143 | if resp != self.TYPE_PLIST: 144 | raise MuxError("Received non-plist type %d"%resp) 145 | payload = plistlib.readPlistFromString(payload) 146 | return payload['MessageType'], tag, payload 147 | 148 | class MuxConnection(object): 149 | def __init__(self, socketpath, protoclass): 150 | self.socketpath = socketpath 151 | if sys.platform in ['win32', 'cygwin']: 152 | family = socket.AF_INET 153 | address = ('127.0.0.1', 27015) 154 | else: 155 | family = socket.AF_UNIX 156 | address = self.socketpath 157 | self.socket = SafeStreamSocket(address, family) 158 | self.proto = protoclass(self.socket) 159 | self.pkttag = 1 160 | self.devices = [] 161 | 162 | def _getreply(self): 163 | while True: 164 | resp, tag, data = self.proto.getpacket() 165 | if resp == self.proto.TYPE_RESULT: 166 | return tag, data 167 | else: 168 | raise MuxError("Invalid packet type received: %d"%resp) 169 | def _processpacket(self): 170 | resp, tag, data = self.proto.getpacket() 171 | if resp == self.proto.TYPE_DEVICE_ADD: 172 | self.devices.append(MuxDevice(data['DeviceID'], data['Properties']['ProductID'], data['Properties']['SerialNumber'], data['Properties']['LocationID'])) 173 | elif resp == self.proto.TYPE_DEVICE_REMOVE: 174 | for dev in self.devices: 175 | if dev.devid == data['DeviceID']: 176 | self.devices.remove(dev) 177 | elif resp == self.proto.TYPE_RESULT: 178 | raise MuxError("Unexpected result: %d"%resp) 179 | else: 180 | raise MuxError("Invalid packet type received: %d"%resp) 181 | def _exchange(self, req, payload={}): 182 | mytag = self.pkttag 183 | self.pkttag += 1 184 | self.proto.sendpacket(req, mytag, payload) 185 | recvtag, data = self._getreply() 186 | if recvtag != mytag: 187 | raise MuxError("Reply tag mismatch: expected %d, got %d"%(mytag, recvtag)) 188 | return data['Number'] 189 | 190 | def listen(self): 191 | ret = self._exchange(self.proto.TYPE_LISTEN) 192 | if ret != 0: 193 | raise MuxError("Listen failed: error %d"%ret) 194 | def process(self, timeout=None): 195 | if self.proto.connected: 196 | raise MuxError("Socket is connected, cannot process listener events") 197 | rlo, wlo, xlo = select.select([self.socket.sock], [], [self.socket.sock], timeout) 198 | if xlo: 199 | self.socket.sock.close() 200 | raise MuxError("Exception in listener socket") 201 | if rlo: 202 | self._processpacket() 203 | def connect(self, device, port): 204 | ret = self._exchange(self.proto.TYPE_CONNECT, {'DeviceID':device.devid, 'PortNumber':((port<<8) & 0xFF00) | (port>>8)}) 205 | if ret != 0: 206 | raise MuxError("Connect failed: error %d"%ret) 207 | self.proto.connected = True 208 | return self.socket.sock 209 | def close(self): 210 | self.socket.sock.close() 211 | 212 | class USBMux(object): 213 | def __init__(self, socketpath=None): 214 | if socketpath is None: 215 | if sys.platform == 'darwin': 216 | socketpath = "/var/run/usbmuxd" 217 | else: 218 | socketpath = "/var/run/usbmuxd" 219 | self.socketpath = socketpath 220 | self.listener = MuxConnection(socketpath, BinaryProtocol) 221 | try: 222 | self.listener.listen() 223 | self.version = 0 224 | self.protoclass = BinaryProtocol 225 | except MuxVersionError: 226 | self.listener = MuxConnection(socketpath, PlistProtocol) 227 | self.listener.listen() 228 | self.protoclass = PlistProtocol 229 | self.version = 1 230 | self.devices = self.listener.devices 231 | def process(self, timeout=None): 232 | self.listener.process(timeout) 233 | def connect(self, device, port): 234 | connector = MuxConnection(self.socketpath, self.protoclass) 235 | return connector.connect(device, port) 236 | 237 | if __name__ == "__main__": 238 | mux = USBMux() 239 | print "Waiting for devices..." 240 | if not mux.devices: 241 | mux.process(0.1) 242 | while True: 243 | print "Devices:" 244 | for dev in mux.devices: 245 | print dev 246 | mux.process() 247 | -------------------------------------------------------------------------------- /COPYING.GPLv2: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 2, June 1991 3 | 4 | Copyright (C) 1989, 1991 Free Software Foundation, Inc., 5 | 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 6 | Everyone is permitted to copy and distribute verbatim copies 7 | of this license document, but changing it is not allowed. 8 | 9 | Preamble 10 | 11 | The licenses for most software are designed to take away your 12 | freedom to share and change it. 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It is safest 289 | to attach them to the start of each source file to most effectively 290 | convey the exclusion of warranty; and each file should have at least 291 | the "copyright" line and a pointer to where the full notice is found. 292 | 293 | 294 | Copyright (C) 295 | 296 | This program is free software; you can redistribute it and/or modify 297 | it under the terms of the GNU General Public License as published by 298 | the Free Software Foundation; either version 2 of the License, or 299 | (at your option) any later version. 300 | 301 | This program is distributed in the hope that it will be useful, 302 | but WITHOUT ANY WARRANTY; without even the implied warranty of 303 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 304 | GNU General Public License for more details. 305 | 306 | You should have received a copy of the GNU General Public License along 307 | with this program; if not, write to the Free Software Foundation, Inc., 308 | 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. 309 | 310 | Also add information on how to contact you by electronic and paper mail. 311 | 312 | If the program is interactive, make it output a short notice like this 313 | when it starts in an interactive mode: 314 | 315 | Gnomovision version 69, Copyright (C) year name of author 316 | Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 317 | This is free software, and you are welcome to redistribute it 318 | under certain conditions; type `show c' for details. 319 | 320 | The hypothetical commands `show w' and `show c' should show the appropriate 321 | parts of the General Public License. Of course, the commands you use may 322 | be called something other than `show w' and `show c'; they could even be 323 | mouse-clicks or menu items--whatever suits your program. 324 | 325 | You should also get your employer (if you work as a programmer) or your 326 | school, if any, to sign a "copyright disclaimer" for the program, if 327 | necessary. Here is a sample; alter the names: 328 | 329 | Yoyodyne, Inc., hereby disclaims all copyright interest in the program 330 | `Gnomovision' (which makes passes at compilers) written by James Hacker. 331 | 332 | , 1 April 1989 333 | Ty Coon, President of Vice 334 | 335 | This General Public License does not permit incorporating your program into 336 | proprietary programs. If your program is a subroutine library, you may 337 | consider it more useful to permit linking proprietary applications with the 338 | library. If this is what you want to do, use the GNU Lesser General 339 | Public License instead of this License. 340 | 341 | -------------------------------------------------------------------------------- /COPYING.GPLv3: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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Such new versions will 567 | be similar in spirit to the present version, but may differ in detail to 568 | address new problems or concerns. 569 | 570 | Each version is given a distinguishing version number. If the 571 | Program specifies that a certain numbered version of the GNU General 572 | Public License "or any later version" applies to it, you have the 573 | option of following the terms and conditions either of that numbered 574 | version or of any later version published by the Free Software 575 | Foundation. If the Program does not specify a version number of the 576 | GNU General Public License, you may choose any version ever published 577 | by the Free Software Foundation. 578 | 579 | If the Program specifies that a proxy can decide which future 580 | versions of the GNU General Public License can be used, that proxy's 581 | public statement of acceptance of a version permanently authorizes you 582 | to choose that version for the Program. 583 | 584 | Later license versions may give you additional or different 585 | permissions. However, no additional obligations are imposed on any 586 | author or copyright holder as a result of your choosing to follow a 587 | later version. 588 | 589 | 15. Disclaimer of Warranty. 590 | 591 | THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY 592 | APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT 593 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY 594 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, 595 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 596 | PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM 597 | IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF 598 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 599 | 600 | 16. Limitation of Liability. 601 | 602 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 603 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS 604 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY 605 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE 606 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF 607 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD 608 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), 609 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF 610 | SUCH DAMAGES. 611 | 612 | 17. Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | --------------------------------------------------------------------------------