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------------------
-- misc functions --
------------------
function display(inp)
if (type(inp) == "string") then
inp = Input(inp)
elseif (type(inp) ~= "table") then
error("Display needs a string or an Input object")
end
while(not inp:isclosed()) do
print(inp:read())
end
end
function pchar(n)
if (not ((n >= 32) and (n <= 127))) then
n = 0x2e
end
return hex(n, "%c")
end
function hexdump(inp, from, to, width)
local size, nlines, remaining, data_array, line, byte, outstring
if (type(inp) == "string") then
inp = Input(inp)
elseif (type(inp) ~= "table") then
error("Hexdump needs a string or an Input object")
end
size = inp:getsize()
if (from == nil) then
from = 0
end
if (to == nil) then
to = size
end
if (to > size) then
to = size
end
size = to - from
if (width == nil) then
width = 16
end
nlines = math.floor(size / width)
remaining = math.mod(size, width)
inp:seek(from)
data_array = inp:read(size)
for line = 0, nlines - 1, 1 do
outstring = hex(line * width + from, "%08x ")
for byte = 0, width - 1, 1 do
outstring = outstring .. hex(data_array[line * 16 + byte]) .. " "
end
outstring = outstring .. " "
for byte = 0, width - 1, 1 do
outstring = outstring .. pchar(data_array[line * 16 + byte])
end
print(outstring)
end
if (remaining == 0) then
return
end
outstring = hex(nlines * width + from, "%08x ");
for byte = 0, remaining - 1, 1 do
outstring = outstring .. hex(data_array[nlines * 16 + byte]) .. " "
end
for byte = remaining + 1, width - 1, 1 do
outstring = outstring .. " "
end
outstring = outstring .. " "
for byte = 0, remaining - 1, 1 do
outstring = outstring .. pchar(data_array[nlines * 16 + byte])
end
print(outstring)
end
--------------------------
-- cdutil object wrappers --
--------------------------
function cdfile(arg1, arg2, arg3, arg4)
local cdutil_implied = false
if ((type(arg1) ~= "table") or (arg1.cdfile == nil)) then
cdutil_implied = true
end
if ((arg2 == nil) and (arg3 == nil) and (arg4 == nil)) then
return cdutil:cdfile(arg1)
elseif ((arg3 == nil) and (arg4 == nil)) then
if (cdutil_implied) then
return cdutil:cdfile(arg1, arg2)
else
return arg1:cdfile(arg2)
end
elseif (arg4 == nil) then
if (cdutil_implied) then
return cdutil:cdfile(arg1, arg2, arg3)
else
return arg1:cdfile(arg2, arg3)
end
else
return arg1:cdfile(arg2, arg3, arg4)
end
end
function setisow(iso_w)
if (cdutil == nil) then error "cdutil object non existant" end
return cdutil:setisow(iso_w)
end
function guessmode(sect)
if (cdutil == nil) then error "cdutil object non existant" end
if (sect == nil) then
return cdutil:guessmode()
else
return cdutil:guessmode(sect)
end
end
function sectorseek(sect)
if (cdutil == nil) then error "cdutil object non existant" end
return cdutil:sectorseek(sect)
end
function readsector(sect, mode)
if (cdutil == nil) then error "cdutil object non existant" end
if (sect == nil) then
return cdutil:readsector()
elseif (mode == nil) then
return cdutil:readsector(sect)
else
return cdutil:readsector(sect, mode)
end
end
function readdatas(size, sector, mode)
if (cdutil == nil) then error "cdutil object non existant" end
if (sect == nil) then
return cdutil:readdatas(size)
elseif (mode == nil) then
return cdutil:readdatas(size, sect)
else
return cdutil:readdatas(size, sect, mode)
end
end
function readfile(handle, size, sector, mode)
if (cdutil == nil) then error "cdutil object non existant" end
if (sect == nil) then
return cdutil:readfile(handle, size)
elseif (mode == nil) then
return cdutil:readfile(handle, size, sect)
else
return cdutil:readfile(handle, size, sect, mode)
end
end
function writesector(array, sector, mode)
if (cdutil == nil) then error "cdutil object non existant" end
if (sector == nil) then
return cdutil:writesector(array, sector)
elseif (mode == nil) then
return cdutil:writesector(array, sector, mode)
end
end
function writedatas(array, size, sector, mode)
if (cdutil == nil) then error "cdutil object non existant" end
if (sector == nil) then
return cdutil:writedatas(array, size)
elseif (mode == nil) then
return cdutil:writedatas(array, size, sector)
else
return cdutil:writedatas(array, size, sector, mode)
end
end
function writefile(handle, size, sector, mode)
if (cdutil == nil) then error "cdutil object non existant" end
if (size == nil) then
return cdutil:writefile(handle)
elseif (sector == nil) then
return cdutil:writefile(handle, size)
elseif (mode == nil) then
return cdutil:writefile(handle, size, sector)
else
return cdutil:writefile(handle, size, sector, mode)
end
end
function findpath(path)
if (cdutil == nil) then error "cdutil object non existant" end
return cdutil:findpath(path)
end
function findparent(path)
if (cdutil == nil) then error "cdutil object non existant" end
return cdutil:findparent(path)
end
function finddirectory(dir, path)
if (cdutil == nil) then error "cdutil object non existant" end
return cdutil:finddirectory(dir, path)
end
-----------------------
-- iso object wrappers --
-----------------------
function foreword(lcdutil)
if (iso == nil) then error "iso object non existant" end
if ((lcdutil == nil) and (cdutil == nil)) then error "cdutil object non existant" end
if (lcdutil == nil) then
return iso:foreword(cdutil)
else
return iso:foreword(lcdutil)
end
end
function foreword_handle(handle, mode)
if (iso == nil) then error "iso object non existant" end
if (mode == nil) then
return iso:foreword_handle(handle)
else
return iso:foreword_handle(handle, mode)
end
end
function foreword_array(array, mode)
if (iso == nil) then error "iso object non existant" end
if (mode == nil) then
return iso:foreword_array(array)
else
return iso:foreword_array(array, mode)
end
end
function getdispsect()
if (iso == nil) then error "iso object non existant" end
return iso:getdispsect()
end
function putfile(handle, mode, sector)
if (iso == nil) then error "iso object non existant" end
if (mode == nil) then
iso:putfile(handle)
elseif (sector == nil) then
iso:putfile(handle, mode)
else
iso:putfile(handle, mode, sector)
end
end
function putdatas(array, size, mode, sector)
if (iso == nil) then error "iso object non existant" end
if (mode == nil) then
iso:putdatas(array, size)
elseif (sector == nil) then
iso:putdatas(array, size, mode)
else
iso:putdatas(array, size, mode, sector)
end
end
function createsector(array, mode, sector)
if (iso == nil) then error "iso object non existant" end
if (mode == nil) then
iso:createsector(array)
elseif (sector == nil) then
iso:createsector(array, mode)
else
iso:createsector(array, mode, sector)
end
end
function setEOF()
if (iso == nil) then error "iso object non existant" end
iso:setEOF()
end
function clearEOF()
if (iso == nil) then error "iso object non existant" end
iso:clearEOF()
end
function setbasics(pvd, rootsize, ptsize, nvd, rootsect)
if (iso == nil) then error "iso object non existant" end
if (rootsize == nil) then
iso:setbasics(pvd)
elseif (ptsize == nil) then
iso:setbasics(pvd, rootsize)
elseif (nvd == nil) then
iso:setbasics(pvd, rootsize, ptsize)
elseif (rootsect) then
iso:setbasics(pvd, rootsize, ptsize, nvd)
else
iso:setbasics(pvd, rootsize, ptsize, nvd, rootsect)
end
end
function createdir(dirtree, name, size, direntry, mode)
if (iso == nil) then error "iso object non existant" end
if (size == nil) then
iso:createdir(dirtree, name)
elseif (mode == nil) then
iso:createdir(dirtree, name, size, direntry)
else
iso:createdir(dirtree, name, size, direntry, mode)
end
end
function createfile(dirtree, name, size, direntry, mode)
if (iso == nil) then error "iso object non existant" end
if (mode == nil) then
iso:createfile(dirtree, name, size, direntry)
else
iso:createfile(dirtree, name, size, direntry, mode)
end
end
function copydir(dirtree, cdutils, direntry, mode)
if (iso == nil) then error "iso object non existant" end
if (mode == nil) then
iso:copydir(dirtree, cdutils, direntry)
else
iso:copydir(dirtree, cdutils, direntry, mode)
end
end
function close(cuefile, mode, nsectors)
if (iso == nil) then error "iso object non existant" end
if (cuefile == nil) then
iso:close()
elseif (mode == nil) then
iso:close(cuefile)
elseif (nsectors == nil) then
iso:close(cuefile, mode)
else
iso:close(cuefile, mode, nsectors)
end
end
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