Error [protocol]: Malformed packet: length 313 was specified, but read 206 bytes

[pylebecq]

Hello. Here is a bug I encountered while using dog:

Version and Operating system:

$ dog --version
dog ● command-line DNS client
v0.1.0
https://dns.lookup.dog/

Operating system: macOS Big Sur 11.6

$ uname -a
Darwin Pierre-Yvess-MacBook-Pro.local 20.6.0 Darwin Kernel Version 20.6.0: Mon Aug 30 06:12:21 PDT 2021; root:xnu-7195.141.6~3/RELEASE_X86_64 x86_64

Command used:

$ dog _spf.mailgun.org TXT
Error [protocol]: Malformed packet: length 313 was specified, but read 206 bytes

Expected result (from dig):

$ dig _spf.mailgun.org TXT

; <<>> DiG 9.10.6 <<>> _spf.mailgun.org TXT
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 33204
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1232
;; QUESTION SECTION:
;_spf.mailgun.org.		IN	TXT

;; ANSWER SECTION:
_spf.mailgun.org.	732	IN	TXT	"v=spf1 ip4:209.61.151.0/24 ip4:166.78.68.0/22 ip4:198.61.254.0/23 ip4:192.237.158.0/23 ip4:23.253.182.0/23 ip4:104.130.96.0/28 ip4:146.20.113.0/24 ip4:146.20.191.0/24 ip4:159.135.224.0/20 ip4:69.72.32.0/20" " ip4:104.130.122.0/23 ip4:146.20.112.0/26 ip4:141.193.32.0/23 ip4:161.38.192.0/20 ip4:143.55.224.0/20 ~all"

;; Query time: 14 msec
;; SERVER: 1.1.1.1#53(1.1.1.1)
;; WHEN: Thu Oct 28 17:50:32 CEST 2021
;; MSG SIZE  rcvd: 370

[benwaffle]

Same with dog me.com TXT

[benwaffle]

Actually, looks like this bug is fixed in master

❯ ./target/debug/dog me.com TXT
TXT me.com. 5m00s   "v=spf1 ip4:17.41.0.0/16 ip4:17.58.0.0/16 ip4:17.110.0.0/15 ip4:17.142.0.0/15 ip4:17.162.0.0/15 ip4:17.164.0.0/16 ip4:17.171.37.0/24 ip4:17.172.0.0/16 ip4:17.179.168.0/23 ip4:144.178.36.0/24 ip4:144.178.38.0/24", " ip4:112.19.199.64/29 ip4:112.19.242.64/29 ip4:222.73.195.64/29 ip4:157.255.1.64/29 ip4:106.39.212.64/29 ip4:123.126.78.64/29 ip4:183.240.219.64/29 ip4:39.156.163.64/29 ip4:17.57.155.0/24 ip4:17.57.156.0/24 ~all"

❯ ./target/debug/dog _spf.mailgun.org txt
TXT _spf.mailgun.org. 1h00m00s   "v=spf1 ip4:209.61.151.0/24 ip4:166.78.68.0/22 ip4:198.61.254.0/23 ip4:192.237.158.0/23 ip4:23.253.182.0/23 ip4:104.130.96.0/28 ip4:146.20.113.0/24 ip4:146.20.191.0/24 ip4:159.135.224.0/20 ip4:69.72.32.0/20", " ip4:104.130.122.0/23 ip4:146.20.112.0/26 ip4:161.38.192.0/20 ip4:143.55.224.0/20 ~all"