RFC 4566, "SDP: Session Description Protocol", July 2006

Note: This RFC has been obsoleted by RFC 8866

Errata ID: 1795
Status: Held for Document Update
Type: Technical
Publication Format(s) : TEXT
Reported By: Leandro Lucarella
Date Reported: 2009-06-19
Held for Document Update by: Robert Sparks

Section 9 says:

   decimal-uchar =       DIGIT
                         / POS-DIGIT DIGIT
                         / ("1" 2*(DIGIT))
                         / ("2" ("0"/"1"/"2"/"3"/"4") DIGIT)
                         / ("2" "5" ("0"/"1"/"2"/"3"/"4"/"5"))

It should say:

   decimal-uchar =       DIGIT
                         / POS-DIGIT DIGIT
                         / ("1" 2(DIGIT))
                         / ("2" ("0"/"1"/"2"/"3"/"4") DIGIT)
                         / ("2" "5" ("0"/"1"/"2"/"3"/"4"/"5"))

Notes:

The "*" is removed from the 3rd line.

The current RFC accepts any number starting with "1" and followed by
2 or more digits (like 1000 or 123456789) as a valid "decimal-uchar"
because of this error, because "1" 2*(DIGIT) means 2 or more digits
following a "1". The correction, 2(DIGIT) means *exactly* 2 digits
following a "1", which covers the range 100-199.

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