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#! /usr/bin/env python3
# Script for preparing OpenSSL for building on Windows.
# Uses Perl to create nmake makefiles and otherwise prepare the way
# for building on 32 or 64 bit platforms.
# Script originally authored by Mark Hammond.
# Major revisions by:
# Martin v. Löwis
# Christian Heimes
# Zachary Ware
# THEORETICALLY, you can:
# * Unpack the latest OpenSSL release where $(opensslDir) in
# PCbuild\pyproject.props expects it to be.
# * Install ActivePerl and ensure it is somewhere on your path.
# * Run this script with the OpenSSL source dir as the only argument.
#
# it should configure OpenSSL such that it is ready to be built by
# ssl.vcxproj on 32 or 64 bit platforms.
from __future__ import print_function
import os
import re
import sys
import subprocess
from shutil import copy
# Find all "foo.exe" files on the PATH.
def find_all_on_path(filename, extras=None):
entries = os.environ["PATH"].split(os.pathsep)
ret = []
for p in entries:
fname = os.path.abspath(os.path.join(p, filename))
if os.path.isfile(fname) and fname not in ret:
ret.append(fname)
if extras:
for p in extras:
fname = os.path.abspath(os.path.join(p, filename))
if os.path.isfile(fname) and fname not in ret:
ret.append(fname)
return ret
# Find a suitable Perl installation for OpenSSL.
# cygwin perl does *not* work. ActivePerl does.
# Being a Perl dummy, the simplest way I can check is if the "Win32" package
# is available.
def find_working_perl(perls):
for perl in perls:
try:
subprocess.check_output([perl, "-e", "use Win32;"])
except subprocess.CalledProcessError:
continue
else:
return perl
if perls:
print("The following perl interpreters were found:")
for p in perls:
print(" ", p)
print(" None of these versions appear suitable for building OpenSSL")
else:
print("NO perl interpreters were found on this machine at all!")
print(" Please install ActivePerl and ensure it appears on your path")
def copy_includes(makefile, suffix):
dir = 'inc'+suffix+'\\openssl'
try:
os.makedirs(dir)
except OSError:
pass
copy_if_different = r'$(PERL) $(SRC_D)\util\copy-if-different.pl'
with open(makefile) as fin:
for line in fin:
if copy_if_different in line:
perl, script, src, dest = line.split()
if not '$(INCO_D)' in dest:
continue
# We're in the root of the source tree
src = src.replace('$(SRC_D)', '.').strip('"')
dest = dest.strip('"').replace('$(INCO_D)', dir)
print('copying', src, 'to', dest)
copy(src, dest)
def run_configure(configure, do_script):
print("perl Configure "+configure+" no-idea no-mdc2")
os.system("perl Configure "+configure+" no-idea no-mdc2")
print(do_script)
os.system(do_script)
def fix_uplink():
# uplink.c tries to find the OPENSSL_Applink function exported from the current
# executable. However, we export it from _ssl[_d].pyd instead. So we update the
# module name here before building.
with open('ms\\uplink.c', 'r', encoding='utf-8') as f1:
code = list(f1)
os.replace('ms\\uplink.c', 'ms\\uplink.c.orig')
already_patched = False
with open('ms\\uplink.c', 'w', encoding='utf-8') as f2:
for line in code:
if not already_patched:
if re.search('MODIFIED FOR CPYTHON _ssl MODULE', line):
already_patched = True
elif re.match(r'^\s+if\s*\(\(h\s*=\s*GetModuleHandle[AW]?\(NULL\)\)\s*==\s*NULL\)', line):
f2.write("/* MODIFIED FOR CPYTHON _ssl MODULE */\n")
f2.write('if ((h = GetModuleHandleW(L"_ssl.pyd")) == NULL) if ((h = GetModuleHandleW(L"_ssl_d.pyd")) == NULL)\n')
already_patched = True
f2.write(line)
if not already_patched:
print("WARN: failed to patch ms\\uplink.c")
def prep(arch):
makefile_template = "ms\\ntdll{}.mak"
generated_makefile = makefile_template.format('')
if arch == "x86":
configure = "VC-WIN32"
do_script = "ms\\do_nasm"
suffix = "32"
elif arch == "amd64":
configure = "VC-WIN64A"
do_script = "ms\\do_win64a"
suffix = "64"
else:
raise ValueError('Unrecognized platform: %s' % arch)
print("Creating the makefiles...")
sys.stdout.flush()
# run configure, copy includes, patch files
run_configure(configure, do_script)
makefile = makefile_template.format(suffix)
try:
os.unlink(makefile)
except FileNotFoundError:
pass
os.rename(generated_makefile, makefile)
copy_includes(makefile, suffix)
print('patching ms\\uplink.c...')
fix_uplink()
def main():
if len(sys.argv) == 1:
print("Not enough arguments: directory containing OpenSSL",
"sources must be supplied")
sys.exit(1)
if len(sys.argv) == 3 and sys.argv[2] not in ('x86', 'amd64'):
print("Second argument must be x86 or amd64")
sys.exit(1)
if len(sys.argv) > 3:
print("Too many arguments supplied, all we need is the directory",
"containing OpenSSL sources and optionally the architecture")
sys.exit(1)
ssl_dir = sys.argv[1]
arch = sys.argv[2] if len(sys.argv) >= 3 else None
if not os.path.isdir(ssl_dir):
print(ssl_dir, "is not an existing directory!")
sys.exit(1)
# perl should be on the path, but we also look in "\perl" and "c:\\perl"
# as "well known" locations
perls = find_all_on_path("perl.exe", [r"\perl\bin",
r"C:\perl\bin",
r"\perl64\bin",
r"C:\perl64\bin",
])
perl = find_working_perl(perls)
if perl:
print("Found a working perl at '%s'" % (perl,))
else:
sys.exit(1)
if not find_all_on_path('nmake.exe'):
print('Could not find nmake.exe, try running env.bat')
sys.exit(1)
if not find_all_on_path('nasm.exe'):
print('Could not find nasm.exe, please add to PATH')
sys.exit(1)
sys.stdout.flush()
# Put our working Perl at the front of our path
os.environ["PATH"] = os.path.dirname(perl) + \
os.pathsep + \
os.environ["PATH"]
old_cwd = os.getcwd()
try:
os.chdir(ssl_dir)
if arch:
prep(arch)
else:
for arch in ['amd64', 'x86']:
prep(arch)
finally:
os.chdir(old_cwd)
if __name__=='__main__':
main()
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