Steven Smith revised this gist . Go to revision
1 file changed, 15 insertions, 2 deletions
lyrics2ptr.py
| @@ -1,4 +1,8 @@ | |||
| 1 | 1 | #!/usr/bin/env python | |
| 2 | + | # v4 | |
| 3 | + | # known bugs: | |
| 4 | + | # * very long words may break all the things or end up longer than the maximum limit | |
| 5 | + | ||
| 2 | 6 | __usage__ = "{} $network <lyrics" | |
| 3 | 7 | __example__ = """ | |
| 4 | 8 | $ {} 172.16.1.0/30 <<EOF | |
| @@ -24,18 +28,27 @@ def filter(l): | |||
| 24 | 28 | ||
| 25 | 29 | def get_ip_for_line(line): | |
| 26 | 30 | l = [] | |
| 31 | + | overflow = [] | |
| 27 | 32 | for word in line.strip().split(): | |
| 28 | 33 | word = filter(word.lower()) | |
| 29 | - | if len(".".join(l)) + len(word) < 253: | |
| 34 | + | if not l or (len(".".join(l)) + len(word) < 253) and not overflow: | |
| 30 | 35 | if len(word) > 60: | |
| 31 | 36 | while word: | |
| 32 | 37 | l.append(word[:60]) | |
| 33 | 38 | word = word[60:] | |
| 34 | 39 | else: | |
| 35 | 40 | l.append(word) | |
| 41 | + | else: | |
| 42 | + | overflow.append(word) | |
| 36 | 43 | ip = ".".join(str(next(subnet)).split(".")[::-1]) | |
| 37 | 44 | print("^{}.in-addr.arpa:{}:86400".format(ip, ".".join(l))) | |
| 45 | + | if overflow: | |
| 46 | + | get_ip_for_line(" ".join(overflow)) | |
| 38 | 47 | ||
| 39 | 48 | ||
| 40 | 49 | for line in sys.stdin: | |
| 41 | - | get_ip_for_line(line) | |
| 50 | + | try: | |
| 51 | + | get_ip_for_line(line) | |
| 52 | + | except StopIteration: | |
| 53 | + | print("out of IPs!", file=sys.stderr) | |
| 54 | + | break | |
Steven Smith revised this gist . Go to revision
1 file changed, 41 insertions
lyrics2ptr.py(file created)
| @@ -0,0 +1,41 @@ | |||
| 1 | + | #!/usr/bin/env python | |
| 2 | + | __usage__ = "{} $network <lyrics" | |
| 3 | + | __example__ = """ | |
| 4 | + | $ {} 172.16.1.0/30 <<EOF | |
| 5 | + | this is a test | |
| 6 | + | this is only a test | |
| 7 | + | EOF | |
| 8 | + | """ | |
| 9 | + | ||
| 10 | + | import sys, ipaddress | |
| 11 | + | from string import ascii_lowercase,ascii_uppercase | |
| 12 | + | ||
| 13 | + | if len(sys.argv) < 2 or sys.stdin.isatty(): | |
| 14 | + | print(__usage__.format(sys.argv[0])) | |
| 15 | + | print(__example__.format(sys.argv[0])) | |
| 16 | + | sys.exit(2) | |
| 17 | + | ||
| 18 | + | subnet = iter(ipaddress.ip_network(sys.argv[1])) | |
| 19 | + | ||
| 20 | + | ||
| 21 | + | def filter(l): | |
| 22 | + | return "".join([c for c in l if c in ascii_lowercase+ascii_uppercase+"_"]) | |
| 23 | + | ||
| 24 | + | ||
| 25 | + | def get_ip_for_line(line): | |
| 26 | + | l = [] | |
| 27 | + | for word in line.strip().split(): | |
| 28 | + | word = filter(word.lower()) | |
| 29 | + | if len(".".join(l)) + len(word) < 253: | |
| 30 | + | if len(word) > 60: | |
| 31 | + | while word: | |
| 32 | + | l.append(word[:60]) | |
| 33 | + | word = word[60:] | |
| 34 | + | else: | |
| 35 | + | l.append(word) | |
| 36 | + | ip = ".".join(str(next(subnet)).split(".")[::-1]) | |
| 37 | + | print("^{}.in-addr.arpa:{}:86400".format(ip, ".".join(l))) | |
| 38 | + | ||
| 39 | + | ||
| 40 | + | for line in sys.stdin: | |
| 41 | + | get_ip_for_line(line) | |
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