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cpython/Tools/ssl/make_ssl_data.py

69 lines
2.1 KiB
Python

#! /usr/bin/env python3
"""
This script should be called *manually* when we want to upgrade SSLError
`library` and `reason` mnemnonics to a more recent OpenSSL version.
It takes two arguments:
- the path to the OpenSSL include files' directory
(e.g. openssl-1.0.1-beta3/include/openssl/)
- the path to the C file to be generated
(probably Modules/_ssl_data.h)
"""
import datetime
import os
import re
import sys
def parse_error_codes(h_file, prefix):
pat = re.compile(r"#define\W+(%s([\w]+))\W+(\d+)\b" % re.escape(prefix))
codes = []
with open(h_file, "r", encoding="latin1") as f:
for line in f:
match = pat.search(line)
if match:
code, name, num = match.groups()
num = int(num)
codes.append((code, name, num))
return codes
if __name__ == "__main__":
openssl_inc = sys.argv[1]
outfile = sys.argv[2]
use_stdout = outfile == '-'
f = sys.stdout if use_stdout else open(outfile, "w")
error_libraries = (
# (library code, mnemonic, error prefix, header file)
('ERR_LIB_PEM', 'PEM', 'PEM_R_', 'pem.h'),
('ERR_LIB_SSL', 'SSL', 'SSL_R_', 'ssl.h'),
('ERR_LIB_X509', 'X509', 'X509_R_', 'x509.h'),
)
def w(l):
f.write(l + "\n")
w("/* File generated by Tools/ssl/make_ssl_data.py */")
w("/* Generated on %s */" % datetime.datetime.now().isoformat())
w("")
w("static struct py_ssl_library_code library_codes[] = {")
for libcode, mnemo, _, _ in error_libraries:
w(' {"%s", %s},' % (mnemo, libcode))
w(' { NULL }')
w('};')
w("")
w("static struct py_ssl_error_code error_codes[] = {")
for libcode, _, prefix, h_file in error_libraries:
codes = parse_error_codes(os.path.join(openssl_inc, h_file), prefix)
for code, name, num in sorted(codes):
w(' #ifdef %s' % (code))
w(' {"%s", %s, %s},' % (name, libcode, code))
w(' #else')
w(' {"%s", %s, %d},' % (name, libcode, num))
w(' #endif')
w(' { NULL }')
w('};')
if not use_stdout:
f.close()