49 lines
1.2 KiB
Python
49 lines
1.2 KiB
Python
import os
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import sys
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from mitmproxy.utils import data as mdata
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import typing # noqa
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class MemBool:
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"""
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Truth-checking with a memory, for use in chained if statements.
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"""
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def __init__(self) -> None:
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self.v = None # type: typing.Optional[bool]
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def __call__(self, v: bool) -> bool:
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self.v = v
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return bool(v)
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# FIXME: change this name
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data = mdata.Data(__name__)
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def daemonize(stdin='/dev/null', stdout='/dev/null', stderr='/dev/null'): # pragma: no cover
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try:
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pid = os.fork()
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if pid > 0:
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sys.exit(0)
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except OSError as e:
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sys.stderr.write("fork #1 failed: (%d) %s\n" % (e.errno, e.strerror))
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sys.exit(1)
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os.chdir("/")
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os.umask(0)
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os.setsid()
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try:
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pid = os.fork()
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if pid > 0:
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sys.exit(0)
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except OSError as e:
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sys.stderr.write("fork #2 failed: (%d) %s\n" % (e.errno, e.strerror))
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sys.exit(1)
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si = open(stdin, 'rb')
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so = open(stdout, 'a+b')
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se = open(stderr, 'a+b', 0)
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os.dup2(si.fileno(), sys.stdin.fileno())
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os.dup2(so.fileno(), sys.stdout.fileno())
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os.dup2(se.fileno(), sys.stderr.fileno())
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