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List: net-snmp-coders
Subject: Re: timestamp issue
From: "David T. Perkins" <dperkins () dsperkins ! com>
Date: 2005-11-30 16:06:38
Message-ID: Pine.LNX.4.10.10511300758440.14713-100000 () shell4 ! bayarea ! net
[Download RAW message or body]
HI,
OK, Try the following...
unsigned char val[] = { 0x07, 0xC8, 0x05, 0x1a, 0x0d,
0x1e, 0x0e, 0x00, 0x2d, 0x04, 0x00 };
int valLen = sizeof(val)/sizeof(unsigned char);
snmp_set_var_typed_value (requests,ASN_OCTET_STR, val, valLen);
What you did encodes a string that is 24 octets long.
Your value is a binary value whose length SHOULD BE
11 octets long!
On Wed, 30 Nov 2005 kanda.samy@wipro.com wrote:
> Hi David,
>
> Thank you for quick the response
>
> I had tried the value, what you had send, still i am getting some big number.
> I had filled the snmp_set_var_typed_value as
> snmp_set_var_typed_value (requests,ASN_OCTET_STR,"0x07C8051a0d1e0e002d0400",strlen \
> ("0x07C8051a0d1e0e002d0400")) the reply i got is,
> ------------------------------------------------------------------------------------------
> [kanda@kanda kanda]$ snmpget -v2c -c motro localhost myScalar.0
> MY-MIB::myScalar.0 = STRING: \
> 12408-48-55,67:56:48.53,197:48100491014810148485010048524848
> ------------------------------------------------------------------------------------------
>
> if i change myScalar MIB definition from "SYNTAX DateAndTime " to "SYNTAX \
> DisplayString" and if i send "1992-5-26,13:30:15.0,-4:0" to \
> snmp_set_var_typed_value(), i am getting the same string what i had passed.
>
> For dateAndTime scalars, Do i have to send the (hexa values), in some other format?
>
> In mib2c code, i am getting variable->type as "ASN_OCTET_STR", wheather myScalar \
> SYNTAX is DisplayString or DateAndTime. How i can differenciate this displayString \
> and dateAndTime in mib2c code, Since you are telling for dateAndTime, i have to \
> give hexa format string for dateAndTime type scalars.
>
>
> Regards
> Kanda,
>
> -----Original Message-----
> From: David T. Perkins [mailto:dperkins@dsperkins.com]
> Sent: Sunday, November 27, 2005 4:01 AM
> To: Siddesh P R (WT01 - Broadband Networks)
> Cc: net-snmp-coders@lists.sourceforge.net
> Subject: Re: timestamp issue
>
> HI,
>
> It appears that you have misunderstood the definition of the DataAndTime
> textual convention. Here is the definition from RFC 2579:
> DateAndTime ::= TEXTUAL-CONVENTION
> DISPLAY-HINT "2d-1d-1d,1d:1d:1d.1d,1a1d:1d"
> STATUS current
> DESCRIPTION
> "A date-time specification.
>
> field octets contents range
> ----- ------ -------- -----
> 1 1-2 year* 0..65536
> 2 3 month 1..12
> 3 4 day 1..31
> 4 5 hour 0..23
> 5 6 minutes 0..59
> 6 7 seconds 0..60
> (use 60 for leap-second)
> 7 8 deci-seconds 0..9
> 8 9 direction from UTC '+' / '-'
> 9 10 hours from UTC* 0..13
> 10 11 minutes from UTC 0..59
>
> * Notes:
> - the value of year is in network-byte order
> - daylight saving time in New Zealand is +13
>
> For example, Tuesday May 26, 1992 at 1:30:15 PM EDT would be
> displayed as:
>
> 1992-5-26,13:30:15.0,-4:0
>
> Note that if only local time is known, then timezone
> information (fields 8-10) is not present."
> SYNTAX OCTET STRING (SIZE (8 | 11))
>
>
> The value of an item with data type DateAndTime is a binary
> string and NOT a displayable string. The value of the
> DISPLAY-HINT clause tells you how to decode the binary
> string to construct a displayable value. It appears that
> the DESCRIPTION clause is incomplete in that it should have
> said that the value of
> 0x07C8 05 1a 0d 1e 0e 00 2d 04 00 (i put in spaces to show the fields)
> or without spaces:
> 0x07C8051a0d1e0e002d0400 (length of 11)
>
> Regards,
> /david t. perkins
>
> On Sun, 27 Nov 2005 siddesh.rajappa@wipro.com wrote:
> > Hi
> >
> > One of our Property MIB is defined as
> > "SYNTAX DateAndTime
> > MAX-ACCESS read-only".
> >
> > For this mib i had generated c code , using mib2c script (
> > mib2c.scalar.conf). In the code, for that particular scalar i am sending
> > string
> > "1992-5-26,13:30:15.0,-4:0" by filling set_var_type value as
> >
> >
> > snmp_set_var_typed_value
> > (requests,ASN_OCTET_STR,"1992-5-26,13:30:15.0,-4:0",
> > strlen ("1992-5-26,13:30:15.0,-4:0").
> >
> > When i am giving get on this scalar it is showing big strig...
> > Does net-snmp coverts for DateAndTime to some other format ( the
> > formate what i had given is already in dateAndtime format).
> >
> >
> > ------------------------------------------------------------------------
> > ------------------------------------
> > [kanda@kanda weTst]$ snmpget -v2c -c motro 10.201.114.139 mySclalar.0
> > MY-MIB::myScalar.0 = STRING:
> > 12601-57-50,45:53:45.50,644:495158514858495346484445525848
> >
> > ------------------------------------------------------------------------
> > ------------------------------------
> >
> >
> > Can some body help me , how i can display the same string what i am
> > sending in the code , as snmpget output.
> >
> > regards
> > Kanda
>
>
>
>
>
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>
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