49 lines
1014 B
Lua
49 lines
1014 B
Lua
local tsar = {}
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do
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local file = ""
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local modes = {
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["fifo"] = 1,
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["char device"] = 2,
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["directory"] = 4,
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["block device"] = 6,
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["file"] = 8,
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["link"] = 0xA,
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["socket"] = 0xC
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}
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local function tsar.getperm(ftype, perm)
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local md = 0
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for i=1, 9 do
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if (perm:sub(i,i) ~= "-") then
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md = md | (1 << (i-1))
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end
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end
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return md | (modes[ftype] << 12)
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end
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function tsar.new_node(ni)
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local ent = {
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name = ni.name,
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namesize = #ni.name,
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magic = 0x5f7d,
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mode = ni.mode or tsar.getperm("directory", "r-xr-xr-x"),
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uid = ni.uid or 0,
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gid = ni.gid or 0,
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filesize = (ni.data and #ni.data) or 0,
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mtime = os.time()
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}
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file = file .. string.pack("=I2I2I2I2I2I6I6", ent.magic, ent.namesize, ent.mode, ent.uid, ent.gid, ent.filesize, ent.mtime)
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file = file .. ni.path
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if ent.namesize & 1 > 0 then
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file = file .. "\0"
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end
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file = file .. (ni.data or "")
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if ent.namesize & 1 > 0 then
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file = file .. "\0"
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end
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end
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function tsar.get()
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return file
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end
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end |