I have a net-snmp-5.4.2.1, want to make mib-module with own OIDs. So, I made
MIB file, then used mib2c utility, and got 11 files:
>
> myMibTable.c
myMibTable.h
myMibTable_data_access.c
myMibTable_data_access.h
myMibTable_data_set.c
myMibTable_data_set.h
myMibTable_data_get.c
myMibTable_data_get.h
myMibTable_enums.h
myMibTable_interface.c
myMibTable_interface.h
myMibTable_oids.h
So, everything is right, i guess.
When i try to compile, there is error:
MY-MIB/myMibTable/myMibTable_interface.c: In function
'myMibTable_index_to_oid':
MY-MIB/myMibTable/myMibTable_interface.c:359: error: 'var_' undeclared
(first use in this function)
MY-MIB/myMibTable/myMibTable_interface.c:359: error: (Each undeclared
identifier is reported only once
MY-MIB/myMibTable/myMibTable_interface.c:359: error: for each function it
appears in.)
MY-MIB/myMibTable/myMibTable_interface.c: In function
'myMibTable_index_from_oid':
MY-MIB/myMibTable/myMibTable_interface.c:403: error: 'var_' undeclared
(first use in this function)
make[6]: *** [MY-MIB/myMibTable/myMibTable_interface.lo] Error 1
I found this function in file myMibTable_interface.c:
> /**
* @internal
* convert the index component stored in the context to an oid
*/
int
myMibTable_index_to_oid(netsnmp_index *oid_idx,
myMibTable_mib_index *mib_idx)
{
int err = SNMP_ERR_NOERROR;
/*
* temp storage for parsing indexes
*/
> /*
* set up varbinds
*/
> /*
* chain temp index varbinds together
*/
NULL;
>
> DEBUGMSGTL(("verbose:myMibTable:myMibTable_index_to_oid","called\n"));
>
> err = build_oid_noalloc(oid_idx->oids, oid_idx->len, &oid_idx->len,
NULL, 0, &var_);
if(err)
snmp_log(LOG_ERR,"error %d converting index to oid\n", err);
> /*
* parsing may have allocated memory. free it.
*/
snmp_reset_var_buffers( &var_ );
> return err;
} /* myMibTable_index_to_oid */
and it's really true. but I haven't to modify this file, because it's
generated automatically by mib2c.
In myMibTable.h I found strange record:
> typedef struct myMibTable_mib_index_s {
>
> } myMibTable_mib_index;
and that's all.
In the end, want to show MIB file:
> MY-MIB DEFINITIONS ::= BEGIN
> IMPORTS
MODULE-IDENTITY, OBJECT-TYPE, enterprises, Integer32
FROM SNMPv2-SMI;
>
> myMibTable MODULE-IDENTITY
LAST-UPDATED "201112010000Z" -- 12 January 2011
ORGANIZATION
CONTACT-INFO
> DESCRIPTION
"This MIB is just joke"
::= { enterprises 7 }
> myMibInfo OBJECT IDENTIFIER::={ myMibTable 1 }
> InfoInteger OBJECT-TYPE
SYNTAX Integer32 (0..2147483647)
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"Interger decription of info information"
::= { myMibInfo 1 }
> InfoString OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(0..1024))
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"A publicly settable string that can be set for testing
snmpsets. This value has no real usage other than
testing purposes."
::= { myMibInfo 2 }
> END
So, what is the problem in automatically generated file with uninitialized
variable?
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