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Bump dnspython from 2.4.2 to 2.6.1 (#2264)

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* Bump dnspython from 2.4.2 to 2.6.1

Bumps [dnspython](https://github.com/rthalley/dnspython) from 2.4.2 to 2.6.1.
- [Release notes](https://github.com/rthalley/dnspython/releases)
- [Changelog](https://github.com/rthalley/dnspython/blob/main/doc/whatsnew.rst)
- [Commits](https://github.com/rthalley/dnspython/compare/v2.4.2...v2.6.1)

---
updated-dependencies:
- dependency-name: dnspython
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

* Update dnspython==2.6.1

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: JonnyWong16 <9099342+JonnyWong16@users.noreply.github.com>

[skip ci]
This commit is contained in:
dependabot[bot] 2024-03-24 15:25:23 -07:00 • committed by GitHub
parent aca7e72715
commit cfefa928be
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101 changed files with 1052 additions and 459 deletions
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64
lib/dns/renderer.py
View file

@ -32,6 +32,24 @@ AUTHORITY = 2
ADDITIONAL = 3
@contextlib.contextmanager
def prefixed_length(output, length_length):
output.write(b"\00" * length_length)
start = output.tell()
yield
end = output.tell()
length = end - start
if length > 0:
try:
output.seek(start - length_length)
try:
output.write(length.to_bytes(length_length, "big"))
except OverflowError:
raise dns.exception.FormError
finally:
output.seek(end)
class Renderer:
"""Helper class for building DNS wire-format messages.
@ -134,6 +152,15 @@ class Renderer:
self._rollback(start)
raise dns.exception.TooBig
@contextlib.contextmanager
def _temporarily_seek_to(self, where):
current = self.output.tell()
try:
self.output.seek(where)
yield
finally:
self.output.seek(current)
def add_question(self, qname, rdtype, rdclass=dns.rdataclass.IN):
"""Add a question to the message."""
@ -269,18 +296,14 @@ class Renderer:
with self._track_size():
keyname.to_wire(self.output, compress, self.origin)
self.output.write(
struct.pack("!HHIH", dns.rdatatype.TSIG, dns.rdataclass.ANY, 0, 0)
struct.pack("!HHI", dns.rdatatype.TSIG, dns.rdataclass.ANY, 0)
)
rdata_start = self.output.tell()
tsig.to_wire(self.output)
with prefixed_length(self.output, 2):
tsig.to_wire(self.output)
after = self.output.tell()
self.output.seek(rdata_start - 2)
self.output.write(struct.pack("!H", after - rdata_start))
self.counts[ADDITIONAL] += 1
self.output.seek(10)
self.output.write(struct.pack("!H", self.counts[ADDITIONAL]))
self.output.seek(0, io.SEEK_END)
with self._temporarily_seek_to(10):
self.output.write(struct.pack("!H", self.counts[ADDITIONAL]))
def write_header(self):
"""Write the DNS message header.
@ -290,19 +313,18 @@ class Renderer:
is added.
"""
self.output.seek(0)
self.output.write(
struct.pack(
"!HHHHHH",
self.id,
self.flags,
self.counts[0],
self.counts[1],
self.counts[2],
self.counts[3],
with self._temporarily_seek_to(0):
self.output.write(
struct.pack(
"!HHHHHH",
self.id,
self.flags,
self.counts[0],
self.counts[1],
self.counts[2],
self.counts[3],
)
)
)
self.output.seek(0, io.SEEK_END)
def get_wire(self):
"""Return the wire format message."""