136 lines
4.2 KiB
Python
Executable File
136 lines
4.2 KiB
Python
Executable File
# uu.py
|
|
# Copyright 1994 by Lance Ellinghouse
|
|
# Cathedral City, California Republic, United States of America.
|
|
# All Rights Reserved
|
|
# Permission to use, copy, modify, and distribute this software and its
|
|
# documentation for any purpose and without fee is hereby granted,
|
|
# provided that the above copyright notice appear in all copies and that
|
|
# both that copyright notice and this permission notice appear in
|
|
# supporting documentation, and that the name of Lance Ellinghouse
|
|
# not be used in advertising or publicity pertaining to distribution
|
|
# of the software without specific, written prior permission.
|
|
# LANCE ELLINGHOUSE DISCLAIMS ALL WARRANTIES WITH REGARD TO
|
|
# THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
|
|
# FITNESS, IN NO EVENT SHALL LANCE ELLINGHOUSE CENTRUM BE LIABLE
|
|
# FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
|
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
#
|
|
# Modified by Jack Jansen, CWI, July 1995:
|
|
# - Use binascii module to do the actual line-by-line conversion
|
|
# between ascii and binary. This results in a 1000-fold speedup. The C
|
|
# version is still 5 times faster, though.
|
|
#
|
|
# This file implements the UUencode and UUdecode functions.
|
|
|
|
# encode(filename, mode, in_file, out_file)
|
|
# decode(filename, mode, in_file)
|
|
# decode(in_file, out_file)
|
|
# decode(in_file)
|
|
|
|
import binascii
|
|
|
|
# encode a fileobject and write out to a file object
|
|
def encode(filename, mode, in_file, out_file):
|
|
out_file.write('begin %o %s\n' % ((mode&0777),filename))
|
|
str = in_file.read(45)
|
|
while len(str) > 0:
|
|
out_file.write(binascii.b2a_uu(str))
|
|
str = in_file.read(45)
|
|
out_file.write(' \nend\n')
|
|
return None
|
|
|
|
|
|
# decode(filename, mode, in_file)
|
|
# decode(in_file, out_file)
|
|
# decode(in_file)
|
|
def decode(*args):
|
|
ok = 1
|
|
_setup = None
|
|
out_file = None
|
|
if len(args) == 3:
|
|
filename, mode, in_file = args
|
|
if type(filename) != type(''):
|
|
ok = 0
|
|
if type(mode) != type(0):
|
|
ok = 0
|
|
try:
|
|
_ = getattr(in_file,'readline')
|
|
except AttributeError:
|
|
ok = 0
|
|
def _setup(out_file,args):
|
|
filename, mode, in_file = args
|
|
# open file as specified and assign out_file for later use
|
|
out_file = open(filename,'w',mode)
|
|
_out_file_orig = 0
|
|
_ = in_file.readline()
|
|
return (out_file,_out_file_orig)
|
|
elif len(args) == 2:
|
|
in_file, out_file = args
|
|
try:
|
|
_ = getattr(in_file,'readline')
|
|
_ = getattr(out_file,'write')
|
|
except AttributeError:
|
|
ok = 0
|
|
def _setup(out_file, args):
|
|
in_file, out_file = args
|
|
# Toss the 'begin mode filename' part.. not needed
|
|
_ = in_file.readline()
|
|
_out_file_orig = 1
|
|
return (out_file,_out_file_orig)
|
|
elif len(args) == 1:
|
|
in_file = args[0]
|
|
try:
|
|
_ = getattr(in_file,'readline')
|
|
except AttributeError:
|
|
ok = 0
|
|
def _setup(out_file, args):
|
|
import strop
|
|
in_file = args[0]
|
|
# open file as specified in uu file and
|
|
# assign out_file for later use
|
|
i = in_file.readline()
|
|
i = strop.strip(i)
|
|
if 'begin' != i[:5]:
|
|
raise IOError, 'input file not in UUencoded format'
|
|
[dummy, mode, filename] = strop.split(i)
|
|
mode = strop.atoi(mode, 8)
|
|
out_file = open(filename,'w',mode)
|
|
_out_file_orig = 0
|
|
return (out_file,_out_file_orig)
|
|
if ok != 1:
|
|
raise SyntaxError, 'must be (filename, mode, in_file) or (in_file,out_file) or (in_file)'
|
|
out_file, _out_file_orig = _setup(out_file, args)
|
|
str = in_file.readline()
|
|
while len(str) > 0 and str != ' \n' and str != 'end\n':
|
|
out_file.write(binascii.a2b_uu(str))
|
|
str = in_file.readline()
|
|
if _out_file_orig == 0:
|
|
out_file.close()
|
|
del out_file
|
|
return None
|
|
|
|
def test():
|
|
import sys
|
|
if sys.argv[1:2] == ['-d']:
|
|
if sys.argv[2:]:
|
|
decode(open(sys.argv[2]), sys.stdout)
|
|
else:
|
|
decode(sys.stdin, sys.stdout)
|
|
elif sys.argv[1:2] == ['-e']:
|
|
if sys.argv[2:]:
|
|
file = sys.argv[2]
|
|
fp = open(file)
|
|
else:
|
|
file = '-'
|
|
fp = sys.stdin
|
|
encode(file, 0644, fp, sys.stdout)
|
|
else:
|
|
print 'usage: uu -d [file]; (to decode)'
|
|
print 'or: uu -e [file]; (to encode)'
|
|
sys.exit(2)
|
|
|
|
if __name__ == '__main__':
|
|
test()
|