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#!/usr/bin/env python3
import sys
import argparse
PARSER = argparse.ArgumentParser()
PARSER.add_argument('n', type=int)
PARSER.add_argument('--dots', action='store_true')
PARSER.add_argument('-m', '--message-size', type=int, default=200)
PARSER.add_argument('-d', '--data-size', type=int, default=4000)
PARSER.add_argument('--data-type', choices={'random', 'simple'})
OPTIONS = PARSER.parse_args()
template = """\
__CURSOR=s=6863c726210b4560b7048889d8ada5c5;i=3e931;b=f446871715504074bf7049ef0718fa93;m={m:x};t=4fd05c
__REALTIME_TIMESTAMP={realtime_ts}
__MONOTONIC_TIMESTAMP={monotonic_ts}
_BOOT_ID=f446871715504074bf7049ef0718fa93
_TRANSPORT=syslog
PRIORITY={priority}
SYSLOG_FACILITY={facility}
SYSLOG_IDENTIFIER=/USR/SBIN/CRON
MESSAGE={message}
_UID=0
_GID=0
_MACHINE_ID=69121ca41d12c1b69a7960174c27b618
_HOSTNAME=hostname
SYSLOG_PID=25721
_PID=25721
_SOURCE_REALTIME_TIMESTAMP={source_realtime_ts}
DATA={data}
"""
m = 0x198603b12d7
realtime_ts = 1404101101501873
monotonic_ts = 1753961140951
source_realtime_ts = 1404101101483516
priority = 3
facility = 6
src = open('/dev/urandom', 'rb')
bytes = 0
counter = 0
for i in range(OPTIONS.n):
message = src.read(OPTIONS.message_size)
message = repr(message)[2:-1]
if OPTIONS.data_type == 'random':
data = repr(src.read(OPTIONS.data_size))
else:
# keep the pattern non-repeating so we get a different blob every time
data = '{:0{}}'.format(counter, OPTIONS.data_size)
counter += 1
entry = template.format(m=m,
realtime_ts=realtime_ts,
monotonic_ts=monotonic_ts,
source_realtime_ts=source_realtime_ts,
priority=priority,
facility=facility,
message=message,
data=data)
m += 1
realtime_ts += 1
monotonic_ts += 1
source_realtime_ts += 1
bytes += len(entry)
print(entry)
if OPTIONS.dots:
print('.', file=sys.stderr, end='', flush=True)
if OPTIONS.dots:
print(file=sys.stderr)
print('Wrote {} bytes'.format(bytes), file=sys.stderr)
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