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grgsm_scanner: Add --debug option 

When set the stdout and stderr won't be redirected to /dev/null which
will facilitate resolving issues

Change-Id: I11e99facb5a1ab9c9bfee3c314a91a74f98a2523
This commit is contained in:
Vasil Velichkov 2018-09-04 23:27:04 +03:00 committed by Piotr Krysik
parent 1cc264fb0c
commit fb1f65c572
1 changed files with 21 additions and 16 deletions
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37
apps/grgsm_scanner
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@ -297,7 +297,7 @@ class channel_info(object):
return "ARFCN: %4u, Freq: %6.1fM, CID: %5u, LAC: %5u, MCC: %3u, MNC: %3u, Pwr: %3i" % (
self.arfcn, self.freq / 1e6, self.cid, self.lac, self.mcc, self.mnc, self.power)
def do_scan(samp_rate, band, speed, ppm, gain, args, prn = None):
def do_scan(samp_rate, band, speed, ppm, gain, args, prn = None, debug = False):
signallist = []
channels_num = int(samp_rate / 0.2e6)
for arfcn_range in grgsm.arfcn.get_arfcn_ranges(band):
@ -311,14 +311,15 @@ def do_scan(samp_rate, band, speed, ppm, gain, args, prn = None):
while current_freq < stop_freq:
# silence rtl_sdr output:
# open 2 fds
null_fds = [os.open(os.devnull, os.O_RDWR) for x in xrange(2)]
# save the current file descriptors to a tuple
save = os.dup(1), os.dup(2)
# put /dev/null fds on 1 and 2
os.dup2(null_fds[0], 1)
os.dup2(null_fds[1], 2)
if not debug:
# silence rtl_sdr output:
# open 2 fds
null_fds = [os.open(os.devnull, os.O_RDWR) for x in xrange(2)]
# save the current file descriptors to a tuple
save = os.dup(1), os.dup(2)
# put /dev/null fds on 1 and 2
os.dup2(null_fds[0], 1)
os.dup2(null_fds[1], 2)
# instantiate scanner and processor
scanner = wideband_scanner(rec_len=6 - speed,
@ -359,12 +360,14 @@ def do_scan(samp_rate, band, speed, ppm, gain, args, prn = None):
scanner = None
# restore file descriptors so we can print the results
os.dup2(save[0], 1)
os.dup2(save[1], 2)
# close the temporary fds
os.close(null_fds[0])
os.close(null_fds[1])
if not debug:
# restore file descriptors so we can print the results
os.dup2(save[0], 1)
os.dup2(save[1], 2)
# close the temporary fds
os.close(null_fds[0])
os.close(null_fds[1])
if prn:
prn(found_list)
signallist.extend(found_list)
@ -389,6 +392,8 @@ def argument_parser():
help="Scan speed [default=%default]. Value range 0-5.")
parser.add_option("-v", "--verbose", action="store_true",
help="If set, verbose information output is printed: ccch configuration, cell ARFCN's, neighbour ARFCN's")
parser.add_option("-d", "--debug", action="store_true",
help="Print additional debug messages")
"""
Dont forget: sudo sysctl kernel.shmmni=32000
@ -415,7 +420,7 @@ def main(options = None):
print info.get_verbose_info()
print ""
do_scan(options.samp_rate, options.band, options.speed,
options.ppm, options.gain, options.args, prn = printfunc)
options.ppm, options.gain, options.args, prn = printfunc, debug = options.debug)
if __name__ == '__main__':
main()