def ReadSymbolFile(symbolFileName)
  begin
    symbolFile = File.open(symbolFileName)
  rescue Errno::ENOENT, Errno::EACCES => ex
    abort(ex.message)
  end

  symbolAddress = {}
  symbolFile.each do |line|
    # スペース区切りで分解
    fields = line.split(/\s+/)

    # 3列になっていない行は除外
    if fields.size == 3 && fields[2].start_with?("__exp_")
      symbolAddress[fields[2].gsub("__exp_", "")] = fields[0].hex
    end
  end
  symbolFile.close
  return(symbolAddress)
end

symbolsInfo = ReadSymbolFile("ntshell.syms")

begin
  outFile = File.open("../ntshell/shellif.h", "w")
rescue Errno::ENOENT, Errno::EACCES => ex
  abort(ex.message)
end

symbolsInfo.each do |k, v|
  outFile.printf("#define __imp_%s ((%s_t)0x%08x)\n", k, k, v)
end

outFile.close

begin
  outFile = File.open("../ntshell/shellif_stub.c", "w")
rescue Errno::ENOENT, Errno::EACCES => ex
  abort(ex.message)
end

symbolsInfo.each do |k, v|
  outFile.printf("typedef int (*%s_t)(void);\n", k)
end

outFile.print("\n")

symbolsInfo.each do |k, v|
  outFile.printf("int %s(void)\n", k)
  outFile.print("{\n")
  outFile.printf("\treturn __imp_%s();\n", k)
  outFile.print("}\n")
  outFile.print("\n")
end

outFile.close