#!/usr/bin/python3
"""Dump ACPI tables."""
# TODO: Address following pylint complaints
# pylint: disable=invalid-name
import os
import stat
import sys
def dump_acpi_table(filename, tablename, out):
"""Dump a single ACPI table."""
if not os.access(filename, os.R_OK):
return
out.write(f"{tablename[0:4]} @ 0x0000000000000000\n")
n = 0
with open(filename, "rb") as f:
hex_str = ""
try:
byte = f.read(1)
while byte != b"":
val = ord(byte)
if (n & 15) == 0:
if n > 65535:
hex_str = f" {n:04X}: "
else:
hex_str = f" {n:04X}: "
ascii_str = ""
hex_str = f"{hex_str}{val:02X} "
if (val < 32) or (val > 126):
ascii_str = f"{ascii_str}."
else:
ascii_str = ascii_str + chr(val)
n = n + 1
if (n & 15) == 0:
out.write(f"{hex_str} {ascii_str}\n")
byte = f.read(1)
finally:
if (n % 16) != 0:
hex_str += " " * (16 - n % 16)
out.write(f"{hex_str} {ascii_str}\n")
out.write("\n")
def dump_acpi_tables(path, out):
"""Dump ACPI tables."""
tables = os.listdir(path)
for tablename in tables:
pathname = os.path.join(path, tablename)
mode = os.stat(pathname).st_mode
if stat.S_ISDIR(mode):
dump_acpi_tables(pathname, out)
else:
dump_acpi_table(pathname, tablename, out)
if os.path.isdir("/sys/firmware/acpi/tables"):
dump_acpi_tables("/sys/firmware/acpi/tables", sys.stdout)
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