libgu/gu_snmp.c File Reference

SNMP query routines. More...

#include "before_system.h"
#include <unistd.h>
#include <time.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/time.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <errno.h>
#include <stdarg.h>
#include "gu.h"
#include "global_defines.h"

Data Structures
struct	ITEMS
Defines
#define	UNIVERSAL_FLAG   0x00
#define	APPLICATION_FLAG   0x40
#define	CONTEXT_FLAG   0x80
#define	PRIVATE_FLAG   0xC0
#define	PRIMITIVE_FLAG   0x00
#define	CONSTRUCTOR_FLAG   0x20
#define	BOOLEAN_TAG   0x01
#define	INT_TAG   0x02
#define	BIT_STRING_TAG   0x03
#define	OCTET_STRING_TAG   0x04
#define	NULL_TAG   0x05
#define	OBJECT_ID_TAG   0x06
#define	SEQUENCE_TAG   0x10
#define	SET_TAG   0x11
#define	LONG_LENGTH   0x80
#define	SNMP_IP_ADDRESS_TAG   (APPLICATION_FLAG | 0x00)
#define	SNMP_COUNTER32_TAG   (APPLICATION_FLAG | 0x01)
#define	SNMP_GAGE32_TAG   (APPLICATION_FLAG | 0x02)
#define	SNMP_TIMETICKS_TAG   (APPLICATION_FLAG | 0x03)
#define	SNMP_OPAQUE_TAG   (APPLICATION_FLAG | 0x04)
#define	SNMP_NSAP_ADDRESS_TAG   (APPLICATION_FLAG | 0x05)
#define	SNMP_COUNTER64_TAG   (APPLICATION_FLAG | 0x06)
#define	SNMP_UINTEGER32_TAG   (APPLICATION_FLAG | 0x07)
Functions
gu_snmp *	gu_snmp_open (unsigned long int ip_address, const char community[])
	Create a gu_snmp object.
void	gu_snmp_close (struct gu_snmp *p)
	destroy an SNMP object
void	gu_snmp_get (struct gu_snmp *p,...)
	Perform an SNMP query.

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Detailed Description

SNMP query routines.

This file contains a minimal inplementation of SNMP querys.

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Function Documentation

void gu_snmp_get (  struct gu_snmp *  p, ...  )

Perform an SNMP query. This uses a gu_snmp object to perform and SNMP query. The first argument is a pointer to a gu_snmp object. The subsequent arguments are a list of data types exepcted and pointers to storeage for them. This funciton throws exceptions on errors.

struct gu_snmp* gu_snmp_open (  unsigned long int  ip_address, const char  community[] )

Create a gu_snmp object. This function creates an SNMP object, connects it to a remote system, and returns a pointer to it. If the community[] is NULL, then "public" will be used. This function throws exceptions on failure.

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