SFTP Server(ComputerCraft)

rednet.open("top")

--HASH MUST MATCH SENDER HASH, OTHERWISE FILES WILL FAIL TO SEND
hash = "HASH"

term.clear()
term.setCursorPos(1,1)
print("Getting Files...")

while true do
    id, ftconfirm = rednet.receive()
    if ftconfirm == hash then
    id2, filename = rednet.receive()
    if filename == "startup" or filename == "startup.lua" then
    print()
    print("Startup received. Change name & save, delete, or save as startup?")
    write("save,delete,override?")
    savearg = input()
    if savearg == "save" then
    write("File Name?: ")
    newname = input()
    f = fs.open(newname, "w")
    id3, filedata = rednet.receive()
    f.write(filedata)
    f.close()
    os.reboot()
    if savearg == "delete" then
    os.reboot()
    end
    if savearg == "override" then
    end
    else
    f = fs.open(filename, "w")
    id3, filedata = rednet.receive()
    f.write(filedata)
    f.close()
    print()
    print("File "..filename.." received! Sent by: "..id)
end
end
end