RFC 4707, "Netnews Administration System (NAS)", October 2006

Errata ID: 5825
Status: Reported
Type: Technical
Publication Format(s) : TEXT
Reported By: Julien Élie
Date Reported: 2019-08-18

Throughout the document, when it says:

Section 6.3.3.10:

   username =  *1( VCHAR ) / "0" ; Length of VCHAR >= 1

   password =  *1( VCHAR ) / "0" ; Length of VCHAR >= 1

[...]

   getp-answer =/ "213" [answertext] CRLF
                  text CRLF
                  "." CRLF
   getp-answer =/ "430" [answertext] CRLF
                  text CRLF
                  "." CRLF
   getp-answer =/ "411" [answertext] CRLF
                  text CRLF
                  "." CRLF
   getp-answer =/ "510" [answertext] CRLF
                  text CRLF
                  "." CRLF

   getpdata   =   "Name:" WSP text CRLF
                  "Status:" WSP text CRLF
                  "Serial:" WSP timestamp CRLF
                  *(header ":" WSP text CRLF)
                  [("Ctl-PGP-Key:" CRLF PGP-answer /
                    "Mod-PGP-Key:" CRLF PGP-answer)]

Section 6.3.3.11:

   geta-answer =/ "215" [answertext] CRLF
                   text CRLF
                   "." CRLF
   geta-answer =/ "430" [answertext] CRLF
                  text CRLF
                  "." CRLF
   geta-answer =/ "411" [answertext] CRLF
                  text CRLF
                  "." CRLF
   geta-answer =/ "510" [answertext] CRLF
                  text CRLF
                  "." CRLF

   getadata   =   "Name:" WSP text CRLF
                  "Status:" WSP text CRLF
                  "Serial:" WSP timestamp CRLF
                  *(header ":" WSP text CRLF)
                  [("Ctl-PGP-Key:" CRLF PGP-answer/
                    "Mod-PGP-Key:" CRLF PGP-answer)]

It should say:

Section 6.3.3.10:

   username =  1*VCHAR / "0"

   password =  1*VCHAR / "0"

[...]

   getp-answer =/ "213" [answertext] CRLF
                  [1*text CRLF]
                  "." CRLF
   getp-answer =/ "430" [answertext] CRLF
                  [1*text CRLF]
                  "." CRLF
   getp-answer =/ "411" [answertext] CRLF
                  [1*text CRLF]
                  "." CRLF
   getp-answer =/ "510" [answertext] CRLF
                  [1*text CRLF]
                  "." CRLF

   getpdata   =   "Name:" WSP name CRLF
                  "Status:" WSP list-status CRLF
                  "Serial:" WSP timestamp CRLF
                  *(header ":" WSP *text CRLF)
                  [("Ctl-PGP-Key:" CRLF PGP-answer /
                    "Mod-PGP-Key:" CRLF PGP-answer)]

Section 6.3.3.11:

   geta-answer =/ "215" [answertext] CRLF
                  [1*text CRLF]
                  "." CRLF
   geta-answer =/ "430" [answertext] CRLF
                  [1*text CRLF]
                  "." CRLF
   geta-answer =/ "411" [answertext] CRLF
                  [1*text CRLF]
                  "." CRLF
   geta-answer =/ "510" [answertext] CRLF
                  [1*text CRLF]
                  "." CRLF

   getadata   =   "Name:" WSP name CRLF
                  "Status:" WSP list-status CRLF
                  "Serial:" WSP timestamp CRLF
                  *(header ":" WSP *text CRLF)
                  [("Ctl-PGP-Key:" CRLF PGP-answer /
                    "Mod-PGP-Key:" CRLF PGP-answer)]

Notes:

For username and password, RFC 4234 defines VCHAR as %x21-7E, that is to say only one character.

I suggest [1*text CRLF], that is to say a possible non-empty line, for getp-answer and geta-answer with 213, 215, 430, 411 and 510 response codes.
We need at least *text anyway (several characters), as shown in the examples in Sections 6.3.3.10 and 6.3.3.11.

As for getpdata and getadata, the text keyword used thrice alone is also not right.

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