This file is indexed.

/usr/bin/gpsfake is in python-gps 3.11-3.

This file is owned by root:root, with mode 0o755.

The actual contents of the file can be viewed below.

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
#! /usr/bin/python
#
# gpsfake -- test harness for gpsd
#
# Simulates one or more GPSes, playing back logfiles.
# Most of the logic for this now lives in gps.fake,
# factored out so we can write other test programs with it.
#
# This file is Copyright (c) 2010 by the GPSD project
# BSD terms apply: see the file COPYING in the distribution root for details.

import sys, os, time, getopt, socket, random, pty
import gps, gps.fake as gpsfake   # The "as" pacifies pychecker

class Baton:
    "Ship progress indications to stderr."
    # By setting this > 1 we reduce the frequency of the twirl
    # and speed up test runs.  Should be relatively prime to the
    # nunber of baton states, otherwise it will cause beat artifacts
    # in the twirling.
    SPINNER_INTERVAL = 11
    def __init__(self, prompt, endmsg=None):
        self.stream = sys.stderr
        self.stream.write(prompt + "...")
        if os.isatty(self.stream.fileno()):
            self.stream.write(" \b")
        self.stream.flush()
        self.count = 0
        self.endmsg = endmsg
        self.time = time.time()
        return

    def twirl(self, ch=None):
        if self.stream is None:
            return
        if os.isatty(self.stream.fileno()):
            if ch:
                self.stream.write(ch)
                self.stream.flush()
            elif self.count % Baton.SPINNER_INTERVAL == 0:
                self.stream.write("-/|\\"[self.count % 4])
                self.stream.write("\b")
                self.stream.flush()
        self.count = self.count + 1
        return

    def end(self, msg=None):
        if msg == None:
            msg = self.endmsg
        if self.stream:
            self.stream.write("...(%2.2f sec) %s.\n" % (time.time() - self.time, msg))
        return

def fakeport():
    "Find a port that isn't in use to bind to."
    # Grab a random port from IANA's unassigned/private range. Not perfect,
    # but at least less than in 16000 chance of a pair collision. It would
    # be very hard to get this deterministically correct, since there would
    # always be a window between port allocation and when the daemon picked
    # it up.  We'd need to do some kind of semaphore, etc., and even that
    # wouldn't prevent collisions with other apps using the range.
    return random.randint(49152, 65535)

def hexdump(s):
    rep = ""
    for c in s:
        rep += "%02x" % ord(c)
    return rep

def fakehook(linenumber, fakegps):
    if len(fakegps.testload.sentences) == 0:
        print >>sys.stderr, "fakegps: no sentences in test load."
        raise SystemExit, 1
    if linenumber % len(fakegps.testload.sentences) == 0:
        if singleshot and linenumber > 0:
            return False
        if progress:
            baton.twirl('*\b')
        elif not singleshot:
            sys.stderr.write("gpsfake: log cycle of %s begins.\n" % fakegps.testload.name)
    time.sleep(cycle)
    if linedump and fakegps.testload.legend:
        ml = fakegps.testload.sentences[linenumber % len(fakegps.testload.sentences)].strip()
        if not fakegps.testload.textual:
            ml = hexdump(ml)
        announce = fakegps.testload.legend % (linenumber % len(fakegps.testload.sentences) + 1) + ml
        if promptme:
            raw_input(announce + "? ")
        else:
            print announce
    if progress:
        baton.twirl()
    return True

if __name__ == '__main__':
    try:
        (options, arguments) = getopt.getopt(sys.argv[1:], "1bc:D:fghilm:no:pP:r:s:tuvx")
    except getopt.GetoptError, msg:
        print "gpsfake: " + str(msg)
        raise SystemExit, 1

    port = None
    progress = False
    cycle = 0
    monitor = ""
    speed = 4800
    linedump = False
    predump = False
    pipe = False
    singleshot = False
    promptme = False
    client_init = '?WATCH={"json":true,"nmea":true}'
    doptions = ""
    tcp = False
    udp = False
    verbose = 0
    for (switch, val) in options:
        if (switch == '-1'):
            singleshot = True
        elif (switch == '-f'):
            port = fakeport()
        elif (switch == '-b'):
            progress = True
        elif (switch == '-c'):
            cycle = float(val)
        elif (switch == '-D'):
            doptions += " -D " + val
        elif (switch == '-g'):
            monitor = "xterm -e gdb -tui --args "
        elif (switch == '-i'):
            linedump = promptme = True
        elif (switch == '-l'):
            linedump = True
        elif (switch == '-m'):
            monitor = val + " "
        elif (switch == '-n'):
            doptions += " -n"
        elif (switch == '-x'):
            predump = True
        elif (switch == '-o'):
            doptions = val
        elif (switch == '-p'):
            pipe = True
        elif (switch == '-P'):
            port = int(val)
        elif (switch == '-r'):
            client_init = val
        elif (switch == '-s'):
            speed = int(val)
        elif (switch == '-t'):
            tcp = True
        elif (switch == '-u'):
            udp = True
        elif (switch == '-v'):
            verbose += 1
        elif (switch == '-h'):
            sys.stderr.write("usage: gpsfake [-h] [-l] [-m monitor] [--D debug] [-o options] [-p] [-s speed] [-c cycle] [-b] logfile\n")
            raise SystemExit,0

    try:
        pty.openpty()
    except Exception:
        print >>sys.stderr, "gpsfake: ptys not available, falling back to UDP."
        udp = True

    if not arguments:
        print >>sys.stderr, "gpsfake: requires at least one logfile argument."
        raise SystemExit, 1

    if progress:
        baton = Baton("Processing %s" % ",".join(arguments), "done")
    else:
        print >>sys.stderr, "Processing %s" % ",".join(arguments)

    test = gpsfake.TestSession(prefix=monitor, port=port, options=doptions,
                               tcp=tcp, udp=udp, verbose=verbose,
                               predump=predump)

    if pipe:
        test.reporter = sys.stdout.write
        if verbose:
            progress = False
            test.progress = sys.stdout.write
    test.spawn()
    try:
        for logfile in arguments:
            try:
                test.gps_add(logfile, speed=speed, pred=fakehook)
            except gpsfake.TestLoadError, e:
                sys.stderr.write("gpsfake: " + e.msg + "\n")
                raise SystemExit, 1
            except gpsfake.PacketError, e:
                sys.stderr.write("gpsfake: " + e.msg + "\n")
                raise SystemExit, 1
            except gpsfake.DaemonError, e:
                sys.stderr.write("gpsfake: " + e.msg + "\n")
                raise SystemExit, 1
            except IOError, e:
                if e.filename is None:
                    sys.stderr.write("gpsfake: unknown internal I/O error %s\n" % e)
                else:
                    sys.stderr.write("gpsfake: no such file as %s or file unreadable\n"%e.filename)
                raise SystemExit, 1
            except OSError:
                sys.stderr.write("gpsfake: can't open pty.\n")
                raise SystemExit, 1

        try:
            if pipe:
                test.client_add(client_init + "\n")
                # Give daemon time to get ready for the feeds.
                # Without a delay here there's a window for test
                # sentences to arrive before the watch takes effect.
                # This needs to increase if leading sentences in
                # test loads aren't being processed.
                time.sleep(1)
            test.run()
        except socket.error, msg:
            sys.stderr.write("gpsfake: socket error %s.\n" % msg)
            raise SystemExit, 1
        except gps.client.json_error, e:
            sys.stderr.write("gpsfake: JSON error on line %s is %s.\n" % (repr(e.data), e.explanation))
            raise SystemExit, 1
        except KeyboardInterrupt:
            sys.stderr.write("gpsfake: aborted\n")
            raise SystemExit, 1
    finally:
        test.cleanup()

    if progress:
        baton.end()

# The following sets edit modes for GNU EMACS
# Local Variables:
# mode:python
# End: