Brian Smith
9a702d3f91
Running the precommit tool revealed that there were a number of violations in the codebase. Some imports were also tidied for compliance and better type checking.
265 lines
11 KiB
Python
Executable File
265 lines
11 KiB
Python
Executable File
#
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# Copyright 2010 Per Olofsson
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from ctypes import CDLL, CFUNCTYPE, c_char_p, c_int, c_size_t, c_void_p
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libc = CDLL("/usr/lib/libc.dylib")
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c_launch_data_t = c_void_p
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# size_t launch_data_array_get_count(const launch_data_t)
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launch_data_array_get_count = libc.launch_data_array_get_count
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launch_data_array_get_count.restype = c_size_t
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launch_data_array_get_count.argtypes = [c_launch_data_t]
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# launch_data_t launch_data_array_get_index(const launch_data_t, size_t) __ld_getter;
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launch_data_array_get_index = libc.launch_data_array_get_index
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launch_data_array_get_index.restype = c_launch_data_t
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launch_data_array_get_index.argtypes = [c_launch_data_t, c_size_t]
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# size_t launch_data_dict_get_count(const launch_data_t)
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launch_data_dict_get_count = libc.launch_data_dict_get_count
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launch_data_dict_get_count.restype = c_size_t
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launch_data_dict_get_count.argtypes = [c_launch_data_t]
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# launch_data_t launch_data_dict_lookup(const launch_data_t, const char *)
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launch_data_dict_lookup = libc.launch_data_dict_lookup
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launch_data_dict_lookup.restype = c_launch_data_t
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launch_data_dict_lookup.argtypes = [c_launch_data_t, c_char_p]
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# void launch_data_dict_iterate(const launch_data_t, void (*)(const launch_data_t, const char *, void *), void *) __ld_iterator(1, 2)
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DICTITCALLBACK = CFUNCTYPE(c_void_p, c_launch_data_t, c_char_p, c_void_p)
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launch_data_dict_iterate = libc.launch_data_dict_iterate
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launch_data_dict_iterate.restype = None
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launch_data_dict_iterate.argtypes = [c_launch_data_t, DICTITCALLBACK, c_void_p]
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# void launch_data_free(launch_data_t)
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launch_data_free = libc.launch_data_free
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launch_data_free.restype = None
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launch_data_free.argtypes = [c_launch_data_t]
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# int launch_data_get_errno(const launch_data_t)
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launch_data_get_errno = libc.launch_data_get_errno
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launch_data_get_errno.restype = c_int
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launch_data_get_errno.argtypes = [c_launch_data_t]
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# int launch_data_get_fd(const launch_data_t)
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launch_data_get_fd = libc.launch_data_get_fd
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launch_data_get_fd.restype = c_int
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launch_data_get_fd.argtypes = [c_launch_data_t]
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# launch_data_type_t launch_data_get_type(const launch_data_t)
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launch_data_get_type = libc.launch_data_get_type
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launch_data_get_type.restype = c_launch_data_t
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launch_data_get_type.argtypes = [c_launch_data_t]
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# launch_data_t launch_data_new_string(const char *)
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launch_data_new_string = libc.launch_data_new_string
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launch_data_new_string.restype = c_launch_data_t
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launch_data_new_string.argtypes = [c_char_p]
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# launch_data_t launch_msg(const launch_data_t)
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launch_msg = libc.launch_msg
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launch_msg.restype = c_launch_data_t
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launch_msg.argtypes = [c_launch_data_t]
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LAUNCH_KEY_SUBMITJOB = c_char_p("SubmitJob")
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LAUNCH_KEY_REMOVEJOB = c_char_p("RemoveJob")
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LAUNCH_KEY_STARTJOB = c_char_p("StartJob")
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LAUNCH_KEY_STOPJOB = c_char_p("StopJob")
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LAUNCH_KEY_GETJOB = c_char_p("GetJob")
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LAUNCH_KEY_GETJOBS = c_char_p("GetJobs")
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LAUNCH_KEY_CHECKIN = c_char_p("CheckIn")
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LAUNCH_JOBKEY_LABEL = c_char_p("Label")
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LAUNCH_JOBKEY_DISABLED = c_char_p("Disabled")
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LAUNCH_JOBKEY_USERNAME = c_char_p("UserName")
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LAUNCH_JOBKEY_GROUPNAME = c_char_p("GroupName")
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LAUNCH_JOBKEY_TIMEOUT = c_char_p("TimeOut")
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LAUNCH_JOBKEY_EXITTIMEOUT = c_char_p("ExitTimeOut")
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LAUNCH_JOBKEY_INITGROUPS = c_char_p("InitGroups")
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LAUNCH_JOBKEY_SOCKETS = c_char_p("Sockets")
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LAUNCH_JOBKEY_MACHSERVICES = c_char_p("MachServices")
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LAUNCH_JOBKEY_MACHSERVICELOOKUPPOLICIES = c_char_p("MachServiceLookupPolicies")
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LAUNCH_JOBKEY_INETDCOMPATIBILITY = c_char_p("inetdCompatibility")
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LAUNCH_JOBKEY_ENABLEGLOBBING = c_char_p("EnableGlobbing")
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LAUNCH_JOBKEY_PROGRAMARGUMENTS = c_char_p("ProgramArguments")
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LAUNCH_JOBKEY_PROGRAM = c_char_p("Program")
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LAUNCH_JOBKEY_ONDEMAND = c_char_p("OnDemand")
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LAUNCH_JOBKEY_KEEPALIVE = c_char_p("KeepAlive")
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LAUNCH_JOBKEY_LIMITLOADTOHOSTS = c_char_p("LimitLoadToHosts")
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LAUNCH_JOBKEY_LIMITLOADFROMHOSTS = c_char_p("LimitLoadFromHosts")
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LAUNCH_JOBKEY_LIMITLOADTOSESSIONTYPE = c_char_p("LimitLoadToSessionType")
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LAUNCH_JOBKEY_RUNATLOAD = c_char_p("RunAtLoad")
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LAUNCH_JOBKEY_ROOTDIRECTORY = c_char_p("RootDirectory")
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LAUNCH_JOBKEY_WORKINGDIRECTORY = c_char_p("WorkingDirectory")
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LAUNCH_JOBKEY_ENVIRONMENTVARIABLES = c_char_p("EnvironmentVariables")
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LAUNCH_JOBKEY_USERENVIRONMENTVARIABLES = c_char_p("UserEnvironmentVariables")
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LAUNCH_JOBKEY_UMASK = c_char_p("Umask")
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LAUNCH_JOBKEY_NICE = c_char_p("Nice")
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LAUNCH_JOBKEY_HOPEFULLYEXITSFIRST = c_char_p("HopefullyExitsFirst")
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LAUNCH_JOBKEY_HOPEFULLYEXITSLAST = c_char_p("HopefullyExitsLast")
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LAUNCH_JOBKEY_LOWPRIORITYIO = c_char_p("LowPriorityIO")
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LAUNCH_JOBKEY_SESSIONCREATE = c_char_p("SessionCreate")
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LAUNCH_JOBKEY_STARTONMOUNT = c_char_p("StartOnMount")
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LAUNCH_JOBKEY_SOFTRESOURCELIMITS = c_char_p("SoftResourceLimits")
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LAUNCH_JOBKEY_HARDRESOURCELIMITS = c_char_p("HardResourceLimits")
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LAUNCH_JOBKEY_STANDARDINPATH = c_char_p("StandardInPath")
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LAUNCH_JOBKEY_STANDARDOUTPATH = c_char_p("StandardOutPath")
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LAUNCH_JOBKEY_STANDARDERRORPATH = c_char_p("StandardErrorPath")
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LAUNCH_JOBKEY_DEBUG = c_char_p("Debug")
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LAUNCH_JOBKEY_WAITFORDEBUGGER = c_char_p("WaitForDebugger")
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LAUNCH_JOBKEY_QUEUEDIRECTORIES = c_char_p("QueueDirectories")
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LAUNCH_JOBKEY_WATCHPATHS = c_char_p("WatchPaths")
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LAUNCH_JOBKEY_STARTINTERVAL = c_char_p("StartInterval")
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LAUNCH_JOBKEY_STARTCALENDARINTERVAL = c_char_p("StartCalendarInterval")
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LAUNCH_JOBKEY_BONJOURFDS = c_char_p("BonjourFDs")
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LAUNCH_JOBKEY_LASTEXITSTATUS = c_char_p("LastExitStatus")
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LAUNCH_JOBKEY_PID = c_char_p("PID")
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LAUNCH_JOBKEY_THROTTLEINTERVAL = c_char_p("ThrottleInterval")
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LAUNCH_JOBKEY_LAUNCHONLYONCE = c_char_p("LaunchOnlyOnce")
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LAUNCH_JOBKEY_ABANDONPROCESSGROUP = c_char_p("AbandonProcessGroup")
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LAUNCH_JOBKEY_IGNOREPROCESSGROUPATSHUTDOWN = c_char_p("IgnoreProcessGroupAtShutdown")
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LAUNCH_JOBKEY_POLICIES = c_char_p("Policies")
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LAUNCH_JOBKEY_ENABLETRANSACTIONS = c_char_p("EnableTransactions")
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LAUNCH_JOBPOLICY_DENYCREATINGOTHERJOBS = c_char_p("DenyCreatingOtherJobs")
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LAUNCH_JOBINETDCOMPATIBILITY_WAIT = c_char_p("Wait")
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LAUNCH_JOBKEY_MACH_RESETATCLOSE = c_char_p("ResetAtClose")
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LAUNCH_JOBKEY_MACH_HIDEUNTILCHECKIN = c_char_p("HideUntilCheckIn")
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LAUNCH_JOBKEY_MACH_DRAINMESSAGESONCRASH = c_char_p("DrainMessagesOnCrash")
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LAUNCH_JOBKEY_KEEPALIVE_SUCCESSFULEXIT = c_char_p("SuccessfulExit")
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LAUNCH_JOBKEY_KEEPALIVE_NETWORKSTATE = c_char_p("NetworkState")
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LAUNCH_JOBKEY_KEEPALIVE_PATHSTATE = c_char_p("PathState")
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LAUNCH_JOBKEY_KEEPALIVE_OTHERJOBACTIVE = c_char_p("OtherJobActive")
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LAUNCH_JOBKEY_KEEPALIVE_OTHERJOBENABLED = c_char_p("OtherJobEnabled")
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LAUNCH_JOBKEY_KEEPALIVE_AFTERINITIALDEMAND = c_char_p("AfterInitialDemand")
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LAUNCH_JOBKEY_CAL_MINUTE = c_char_p("Minute")
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LAUNCH_JOBKEY_CAL_HOUR = c_char_p("Hour")
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LAUNCH_JOBKEY_CAL_DAY = c_char_p("Day")
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LAUNCH_JOBKEY_CAL_WEEKDAY = c_char_p("Weekday")
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LAUNCH_JOBKEY_CAL_MONTH = c_char_p("Month")
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LAUNCH_JOBKEY_RESOURCELIMIT_CORE = c_char_p("Core")
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LAUNCH_JOBKEY_RESOURCELIMIT_CPU = c_char_p("CPU")
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LAUNCH_JOBKEY_RESOURCELIMIT_DATA = c_char_p("Data")
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LAUNCH_JOBKEY_RESOURCELIMIT_FSIZE = c_char_p("FileSize")
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LAUNCH_JOBKEY_RESOURCELIMIT_MEMLOCK = c_char_p("MemoryLock")
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LAUNCH_JOBKEY_RESOURCELIMIT_NOFILE = c_char_p("NumberOfFiles")
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LAUNCH_JOBKEY_RESOURCELIMIT_NPROC = c_char_p("NumberOfProcesses")
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LAUNCH_JOBKEY_RESOURCELIMIT_RSS = c_char_p("ResidentSetSize")
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LAUNCH_JOBKEY_RESOURCELIMIT_STACK = c_char_p("Stack")
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LAUNCH_JOBKEY_DISABLED_MACHINETYPE = c_char_p("MachineType")
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LAUNCH_JOBKEY_DISABLED_MODELNAME = c_char_p("ModelName")
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LAUNCH_JOBSOCKETKEY_TYPE = c_char_p("SockType")
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LAUNCH_JOBSOCKETKEY_PASSIVE = c_char_p("SockPassive")
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LAUNCH_JOBSOCKETKEY_BONJOUR = c_char_p("Bonjour")
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LAUNCH_JOBSOCKETKEY_SECUREWITHKEY = c_char_p("SecureSocketWithKey")
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LAUNCH_JOBSOCKETKEY_PATHNAME = c_char_p("SockPathName")
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LAUNCH_JOBSOCKETKEY_PATHMODE = c_char_p("SockPathMode")
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LAUNCH_JOBSOCKETKEY_NODENAME = c_char_p("SockNodeName")
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LAUNCH_JOBSOCKETKEY_SERVICENAME = c_char_p("SockServiceName")
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LAUNCH_JOBSOCKETKEY_FAMILY = c_char_p("SockFamily")
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LAUNCH_JOBSOCKETKEY_PROTOCOL = c_char_p("SockProtocol")
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LAUNCH_JOBSOCKETKEY_MULTICASTGROUP = c_char_p("MulticastGroup")
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(
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LAUNCH_DATA_DICTIONARY,
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LAUNCH_DATA_ARRAY,
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LAUNCH_DATA_FD,
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LAUNCH_DATA_INTEGER,
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LAUNCH_DATA_REAL,
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LAUNCH_DATA_BOOL,
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LAUNCH_DATA_STRING,
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LAUNCH_DATA_OPAQUE,
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LAUNCH_DATA_ERRNO,
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LAUNCH_DATA_MACHPORT,
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) = list(range(1, 11))
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class LaunchDCheckInError(Exception):
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pass
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def get_launchd_socket_fds():
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"""Check in with launchd to get socket file descriptors."""
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# Return a dictionary with keys pointing to lists of file descriptors.
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launchd_socket_fds = dict()
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# Callback for dict iterator.
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def add_socket(launch_array, name, context=None):
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if launch_data_get_type(launch_array) != LAUNCH_DATA_ARRAY:
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raise LaunchDCheckInError(
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"Could not get file descriptor array: Type mismatch"
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)
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fds = list()
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for i in range(launch_data_array_get_count(launch_array)):
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data_fd = launch_data_array_get_index(launch_array, i)
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if launch_data_get_type(data_fd) != LAUNCH_DATA_FD:
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raise LaunchDCheckInError(
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"Could not get file descriptor array entry: Type mismatch"
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)
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fds.append(launch_data_get_fd(data_fd))
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launchd_socket_fds[name] = fds
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# Wrap in try/finally to free resources allocated during lookup.
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try:
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# Create a checkin request.
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checkin_request = launch_data_new_string(LAUNCH_KEY_CHECKIN)
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if checkin_request is None:
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raise LaunchDCheckInError("Could not create checkin request")
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# Check the checkin response.
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checkin_response = launch_msg(checkin_request)
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if checkin_response is None:
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raise LaunchDCheckInError("Error checking in")
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if launch_data_get_type(checkin_response) == LAUNCH_DATA_ERRNO:
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errno = launch_data_get_errno(checkin_response)
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raise LaunchDCheckInError(f"Checkin failed with errno:{errno}")
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# Get a dictionary of sockets.
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sockets = launch_data_dict_lookup(checkin_response, LAUNCH_JOBKEY_SOCKETS)
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if sockets is None:
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raise LaunchDCheckInError(
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"Could not get socket dictionary from checkin response"
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)
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if launch_data_get_type(sockets) != LAUNCH_DATA_DICTIONARY:
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raise LaunchDCheckInError(
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"Could not get socket dictionary from checkin response: Type mismatch"
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)
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# Iterate over the items with add_socket callback.
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launch_data_dict_iterate(sockets, DICTITCALLBACK(add_socket), None)
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return launchd_socket_fds
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finally:
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if checkin_response is not None:
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launch_data_free(checkin_response)
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if checkin_request is not None:
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launch_data_free(checkin_request)
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