RFC294 The Use of "Set Data Type" Transaction in File Transfer Protocol

0294 The Use of "Set Data Type" Transaction in File Transfer Protocol.A.K. Bhushan. January 1972. (Format: TXT=3924 bytes) (Updates RFC0265) (Status: UNKNOWN)

日本語訳
RFC一覧

参照

Network Working Group                             25 January 1972
RFC 294                                        Abhay Bhushan, MIT
NIC 8304
Categories: D.4, D.5, and D.7
Updates: RFC 265


The Use of 'Set Data Type' Transaction in File Transfer Protocol
----------------------------------------------------------------


    As mentioned in RFC 265, the opcode of '00' is set aside for the
clarify the use of 'set data type' in file transfer operations.


    In many systems such as Multics at MIT, there is no provision to
identify the type of data (i.e., ASCII or numeric) stored in files.
The manner in which the data is handled is context dependent.  ASCII
characters are stored as four 9-bit characters per 36-bit word, right
justified with left most bit as zero.  As efficient conversion
programs exists in Multics for conversion of data from Multics' ASCII
into Network ASCII, it would be useful for a user to be able to
instruct the Multics server to convert data into Network ASCII in
retrieve operations.  It is suggested that the 'set data type'
transaction be used for this purpose.


    The 'set data type' transaction preceding a retrieve request
should be interpreted by a server to mean that the user wants to
receive his data in that form.  If the server is unable to convert the
data into the desired form, it should return a 'set data type' of


       [ This RFC was put into machine readable form for entry ]
       [ into the online RFC archives by BBN Corp. under the   ]
       [ direction of Alex McKenzie.                   12/96   ]















                                                                [Page 1]

Network Working Group                             25 January 1972
RFC 294                                        Abhay Bhushan, MIT

    The following examples should clarify the use of 'set data
type' transactions.

1.        USER                                             SERVER
          ----                                             ------
                    Set data type '02' (Network ASCII)
                    ------------------------------------->
                    Store File X
                    ------------------------------------->
                    File X (in Network ASCII)
                    ------------------------------------->
                    End of File
                    ------------------------------------->
                    Acknowledge
                    <-------------------------------------

                    Retrieve File X
                    ------------------------------------->
                    File X in Network ASCII
                    <-------------------------------------
                    End of File
                    <-------------------------------------

2.        USER                                             SERVER
          ----                                             ------
                    Set data type'03' (EBCDIC)
                    ------------------------------------->
                    Retrieve File Y
                    ------------------------------------->
                    Set data type '00' ("bit-stream")
                    <-------------------------------------
                    File Y as stored (no conversion)
                    <-------------------------------------
                    End of File
                    <-------------------------------------

                    Set data type '02' (Network ASCII)
                    ------------------------------------->
                    Retrieve File Z
                    ------------------------------------->
                    File Z in Network ASCII
                    <-------------------------------------
                    End of File
                    <-------------------------------------




                                                                [Page 2]

一覧

 RFC 1〜100  RFC 1401〜1500  RFC 2801〜2900  RFC 4201〜4300 
 RFC 101〜200  RFC 1501〜1600  RFC 2901〜3000  RFC 4301〜4400 
 RFC 201〜300  RFC 1601〜1700  RFC 3001〜3100  RFC 4401〜4500 
 RFC 301〜400  RFC 1701〜1800  RFC 3101〜3200  RFC 4501〜4600 
 RFC 401〜500  RFC 1801〜1900  RFC 3201〜3300  RFC 4601〜4700 
 RFC 501〜600  RFC 1901〜2000  RFC 3301〜3400  RFC 4701〜4800 
 RFC 601〜700  RFC 2001〜2100  RFC 3401〜3500  RFC 4801〜4900 
 RFC 701〜800  RFC 2101〜2200  RFC 3501〜3600  RFC 4901〜5000 
 RFC 801〜900  RFC 2201〜2300  RFC 3601〜3700  RFC 5001〜5100 
 RFC 901〜1000  RFC 2301〜2400  RFC 3701〜3800  RFC 5101〜5200 
 RFC 1001〜1100  RFC 2401〜2500  RFC 3801〜3900  RFC 5201〜5300 
 RFC 1101〜1200  RFC 2501〜2600  RFC 3901〜4000  RFC 5301〜5400 
 RFC 1201〜1300  RFC 2601〜2700  RFC 4001〜4100  RFC 5401〜5500 
 RFC 1301〜1400  RFC 2701〜2800  RFC 4101〜4200 

スポンサーリンク

Zend_DBの基本

ホームページ製作・web系アプリ系の製作案件募集中です。

上に戻る