mirror of
https://github.com/SickGear/SickGear.git
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0d9fbc1ad7
This version of SickBeard uses both TVDB and TVRage to search and gather it's series data from allowing you to now have access to and download shows that you couldn't before because of being locked into only what TheTVDB had to offer. Also this edition is based off the code we used in our XEM editon so it does come with scene numbering support as well as all the other features our XEM edition has to offer. Please before using this with your existing database (sickbeard.db) please make a backup copy of it and delete any other database files such as cache.db and failed.db if present, we HIGHLY recommend starting out with no database files at all to make this a fresh start but the choice is at your own risk! Enjoy!
114 lines
3.7 KiB
Python
114 lines
3.7 KiB
Python
"""
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Linux swap file.
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Documentation: Linux kernel source code, files:
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- mm/swapfile.c
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- include/linux/swap.h
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Author: Victor Stinner
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Creation date: 25 december 2006 (christmas ;-))
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"""
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from lib.hachoir_parser import Parser
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from lib.hachoir_core.field import (ParserError, GenericVector,
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UInt32, String,
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Bytes, NullBytes, RawBytes)
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from lib.hachoir_core.endian import LITTLE_ENDIAN
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from lib.hachoir_core.tools import humanFilesize
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from lib.hachoir_core.bits import str2hex
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PAGE_SIZE = 4096
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# Definition of MAX_SWAP_BADPAGES in Linux kernel:
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# (__swapoffset(magic.magic) - __swapoffset(info.badpages)) / sizeof(int)
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MAX_SWAP_BADPAGES = ((PAGE_SIZE - 10) - 1536) // 4
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class Page(RawBytes):
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static_size = PAGE_SIZE*8
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def __init__(self, parent, name):
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RawBytes.__init__(self, parent, name, PAGE_SIZE)
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class UUID(Bytes):
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static_size = 16*8
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def __init__(self, parent, name):
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Bytes.__init__(self, parent, name, 16)
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def createDisplay(self):
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text = str2hex(self.value, format=r"%02x")
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return "%s-%s-%s-%s-%s" % (
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text[:8], text[8:12], text[12:16], text[16:20], text[20:])
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class LinuxSwapFile(Parser):
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PARSER_TAGS = {
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"id": "linux_swap",
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"file_ext": ("",),
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"category": "file_system",
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"min_size": PAGE_SIZE*8,
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"description": "Linux swap file",
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"magic": (
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("SWAP-SPACE", (PAGE_SIZE-10)*8),
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("SWAPSPACE2", (PAGE_SIZE-10)*8),
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("S1SUSPEND\0", (PAGE_SIZE-10)*8),
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),
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}
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endian = LITTLE_ENDIAN
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def validate(self):
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magic = self.stream.readBytes((PAGE_SIZE-10)*8, 10)
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if magic not in ("SWAP-SPACE", "SWAPSPACE2", "S1SUSPEND\0"):
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return "Unknown magic string"
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if MAX_SWAP_BADPAGES < self["nb_badpage"].value:
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return "Invalid number of bad page (%u)" % self["nb_badpage"].value
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return True
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def getPageCount(self):
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"""
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Number of pages which can really be used for swapping:
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number of page minus bad pages minus one page (used for the header)
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"""
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# -1 because first page is used for the header
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return self["last_page"].value - self["nb_badpage"].value - 1
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def createDescription(self):
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if self["magic"].value == "S1SUSPEND\0":
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text = "Suspend swap file version 1"
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elif self["magic"].value == "SWAPSPACE2":
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text = "Linux swap file version 2"
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else:
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text = "Linux swap file version 1"
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nb_page = self.getPageCount()
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return "%s, page size: %s, %s pages" % (
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text, humanFilesize(PAGE_SIZE), nb_page)
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def createFields(self):
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# First kilobyte: boot sectors
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yield RawBytes(self, "boot", 1024, "Space for disklabel etc.")
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# Header
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yield UInt32(self, "version")
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yield UInt32(self, "last_page")
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yield UInt32(self, "nb_badpage")
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yield UUID(self, "sws_uuid")
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yield UUID(self, "sws_volume")
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yield NullBytes(self, "reserved", 117*4)
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# Read bad pages (if any)
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count = self["nb_badpage"].value
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if count:
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if MAX_SWAP_BADPAGES < count:
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raise ParserError("Invalid number of bad page (%u)" % count)
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yield GenericVector(self, "badpages", count, UInt32, "badpage")
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# Read magic
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padding = self.seekByte(PAGE_SIZE - 10, "padding", null=True)
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if padding:
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yield padding
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yield String(self, "magic", 10, charset="ASCII")
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# Read all pages
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yield GenericVector(self, "pages", self["last_page"].value, Page, "page")
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# Padding at the end
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padding = self.seekBit(self.size, "end_padding", null=True)
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if padding:
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yield padding
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