C++ DEBUGMSGOID函数代码示例

u_char *
getStatPtr(
    oid		*name,	    /* IN - name of var, OUT - name matched */
    size_t	*namelen,   /* IN -number of sub-ids in name,
                               OUT - subid-is in matched name */
    u_char	*type,	    /* OUT - type of matched variable */
    size_t	*len,	    /* OUT - length of matched variable */
    u_short	*acl,	    /* OUT - access control list */
    int		exact,	    /* IN - TRUE if exact match wanted */
    WriteMethod **write_method,
    struct snmp_pdu *pdu,   /* IN - relevant auth info re PDU */
    int		*noSuchObject)
{
    struct subtree	*tp;
    oid			save[MAX_OID_LEN];
    size_t		savelen = 0;
    u_char              result_type;
    u_short             result_acl;
    u_char        	*search_return=NULL;

    found = FALSE;

    if (!exact){
	memcpy(save, name, *namelen * sizeof(oid));
	savelen = *namelen;
    }
    *write_method = NULL;

    DEBUGMSGTL(("snmp_vars", "Looking for: "));
    DEBUGMSGOID(("snmp_vars", name, *namelen));
    DEBUGMSG(("snmp_vars"," ...\n"));

    tp = find_subtree(name, *namelen, NULL);
    
    while ( search_return == NULL && tp != NULL ) {
	DEBUGMSGTL(("snmp_vars", "Trying tree: "));
	DEBUGMSGOID(("snmp_vars", tp->name, tp->namelen));
	DEBUGMSG(("snmp_vars"," ...\n"));
	search_return = search_subtree_vars( tp, name, namelen, &result_type,
                                        len, &result_acl, exact, write_method,
                                        pdu, noSuchObject);
	if ( search_return != NULL || exact )
	    break;
	tp = tp->next;
    }
    if ( tp == NULL ) {
	if (!search_return && !exact){
	    memcpy(name, save, savelen * sizeof(oid));
	    *namelen = savelen;
	}
	if (found)
	    *noSuchObject = FALSE;
	else
	    *noSuchObject = TRUE;
        return NULL;
    }
    *type = result_type;
    *acl =  result_acl;
    return search_return;
}

int
header_hrdisk(struct variable *vp,
	      oid *name,
	      size_t *length,
	      int exact,
	      size_t *var_len,
	      WriteMethod **write_method)
{
#define HRDISK_ENTRY_NAME_LENGTH	11
    oid newname[MAX_OID_LEN];
    int disk_idx, LowIndex = -1;
    int result;

    DEBUGMSGTL(("host/hr_disk", "var_hrdisk: "));
    DEBUGMSGOID(("host/hr_disk", name, *length));
    DEBUGMSG(("host/hr_disk"," %d\n", exact));
    
    memcpy( (char *)newname,(char *)vp->name, (int)vp->namelen * sizeof(oid));
	/* Find "next" disk entry */

    Init_HR_Disk();
    for ( ;; ) {
        disk_idx = Get_Next_HR_Disk();
        if ( disk_idx == -1 )
	    break;
	newname[HRDISK_ENTRY_NAME_LENGTH] = disk_idx;
        result = snmp_oid_compare(name, *length, newname, (int)vp->namelen + 1);
        if (exact && (result == 0)) {
	    LowIndex = disk_idx;
	    Save_HR_Disk_Specific();
            break;
	}
	if ((!exact && (result < 0)) &&
		( LowIndex == -1 ||  disk_idx < LowIndex )) {
	    LowIndex = disk_idx;
	    Save_HR_Disk_Specific();
#ifdef HRD_MONOTONICALLY_INCREASING
	    break;
#endif
        }
    }

    if ( LowIndex == -1 ) {
      DEBUGMSGTL(("host/hr_disk", "... index out of range\n"));
      return(MATCH_FAILED);
    }

    newname[HRDISK_ENTRY_NAME_LENGTH] = LowIndex;
    memcpy( (char *)name,(char *)newname, ((int)vp->namelen + 1) * sizeof(oid));
    *length = vp->namelen + 1;
    *write_method = 0;
    *var_len = sizeof(long);	/* default to 'long' results */

    DEBUGMSGTL(("host/hr_disk", "... get disk stats "));
    DEBUGMSGOID(("host/hr_disk", name, *length));
    DEBUGMSG(("host/hr_disk","\n"));
    
    return LowIndex;
}

int
header_hrnet(struct variable *vp,
             oid * name,
             size_t * length,
             int exact, size_t * var_len, WriteMethod ** write_method)
{
#define HRNET_ENTRY_NAME_LENGTH	11
    oid             newname[MAX_OID_LEN];
    int             net_idx;
    int             result;
    int             LowIndex = -1;

    DEBUGMSGTL(("host/hr_network", "var_hrnet: "));
    DEBUGMSGOID(("host/hr_network", name, *length));
    DEBUGMSG(("host/hr_network", " %d\n", exact));

    memcpy((char *) newname, (char *) vp->name, vp->namelen * sizeof(oid));
    /*
     * Find "next" net entry 
     */

    Init_HR_Network();
    for (;;) {
        net_idx = Get_Next_HR_Network();
        if (net_idx == -1)
            break;
        newname[HRNET_ENTRY_NAME_LENGTH] = net_idx;
        result = snmp_oid_compare(name, *length, newname, vp->namelen + 1);
        if (exact && (result == 0)) {
            LowIndex = net_idx;
            break;
        }
        if (!exact && (result < 0) &&
            (LowIndex == -1 || net_idx < LowIndex)) {
            LowIndex = net_idx;
#ifdef HRN_MONOTONICALLY_INCREASING
            break;
#endif
        }
    }

    if (LowIndex == -1) {
        DEBUGMSGTL(("host/hr_network", "... index out of range\n"));
        return (MATCH_FAILED);
    }

    newname[HRNET_ENTRY_NAME_LENGTH] = LowIndex;
    memcpy((char *) name, (char *) newname,
           (vp->namelen + 1) * sizeof(oid));
    *length = vp->namelen + 1;
    *write_method = 0;
    *var_len = sizeof(long);    /* default to 'long' results */

    DEBUGMSGTL(("host/hr_network", "... get net stats "));
    DEBUGMSGOID(("host/hr_network", name, *length));
    DEBUGMSG(("host/hr_network", "\n"));
    return LowIndex;
}

int
header_hrfilesys(struct variable *vp,
                 oid * name,
                 size_t * length,
                 int exact, size_t * var_len, WriteMethod ** write_method)
{
#define HRFSYS_ENTRY_NAME_LENGTH	11
    oid             newname[MAX_OID_LEN];
    int             fsys_idx, LowIndex = -1;
    int             result;

    DEBUGMSGTL(("host/hr_filesys", "var_hrfilesys: "));
    DEBUGMSGOID(("host/hr_filesys", name, *length));
    DEBUGMSG(("host/hr_filesys", " %d\n", exact));

    memcpy((char *) newname, (char *) vp->name, vp->namelen * sizeof(oid));
    /*
     * Find "next" file system entry 
     */

    Init_HR_FileSys();
    for (;;) {
        fsys_idx = Get_Next_HR_FileSys();
        if (fsys_idx == -1)
            break;
        newname[HRFSYS_ENTRY_NAME_LENGTH] = fsys_idx;
        result = snmp_oid_compare(name, *length, newname, vp->namelen + 1);
        if (exact && (result == 0)) {
            LowIndex = fsys_idx;
            break;
        }
        if ((!exact && (result < 0)) &&
            (LowIndex == -1 || fsys_idx < LowIndex)) {
            LowIndex = fsys_idx;
#ifdef HRFS_MONOTONICALLY_INCREASING
            break;
#endif
        }
    }

    if (LowIndex == -1) {
        DEBUGMSGTL(("host/hr_filesys", "... index out of range\n"));
        return (MATCH_FAILED);
    }

    memcpy((char *) name, (char *) newname,
           (vp->namelen + 1) * sizeof(oid));
    *length = vp->namelen + 1;
    *write_method = (WriteMethod*)0;
    *var_len = sizeof(long);    /* default to 'long' results */

    DEBUGMSGTL(("host/hr_filesys", "... get filesys stats "));
    DEBUGMSGOID(("host/hr_filesys", name, *length));
    DEBUGMSG(("host/hr_filesys", "\n"));

    return LowIndex;
}

/* header_dummy(...
   Arguments:
   vp            IN     - pointer to variable entry that points here
   name          IN/OUT - IN/name requested, OUT/name found
   length        IN/OUT - length of input and output oid's
   exact         IN     - TRUE if an exact match was requested. 
   var_len       OUT     - length of variable or 0 if function returned.
   write_method  OUT     - pointer to function to set variable, otherwise 0
*/
int
header_dummy(struct variable *vp,
	     oid *name,
	     int *length,
	     int exact,
	     int *var_len,
	     WriteMethod **write_method) 
{
#define DUMMY_NAME_LENGTH	8
    oid newname[MAX_OID_LEN];
    int result;

    /* just do trace and token print */
    DEBUGMSGTL(("dummy/dummy:var_dummy", ""));
    DEBUGMSGOID(("dummy/dummy:var_dummy", name, *length));
    DEBUGMSG(("dummy/dummy:var_dummy", " %d\n", exact));

    memcpy(newname, vp->name, (int)vp->namelen * sizeof(oid));
    newname[DUMMY_NAME_LENGTH] = 0;
    result = snmp_oid_compare(name, *length, newname, (int)vp->namelen + 1);
    if ((exact && (result != 0)) || (!exact && (result >= 0)))
        return(MATCH_FAILED);
    memcpy(name, newname, ((int)vp->namelen + 1) * sizeof(oid));
    *length = vp->namelen + 1;

    *write_method = 0;
    *var_len = sizeof(long);	/* default to 'long' results */
    return(MATCH_SUCCEEDED);
}

void
header_complex_generate_oid(oid * name, /* out */
                            size_t * length,    /* out */
                            oid * prefix,
                            size_t prefix_len,
                            netsnmp_variable_list * data)
{

    oid            *oidptr;
    netsnmp_variable_list *var;

    if (prefix) {
        memcpy(name, prefix, prefix_len * sizeof(oid));
        oidptr = (name + (prefix_len));
        *length = prefix_len;
    } else {
        oidptr = name;
        *length = 0;
    }

    for (var = data; var != NULL; var = var->next_variable) {
        header_complex_generate_varoid(var);
        memcpy(oidptr, var->name, sizeof(oid) * var->name_length);
        oidptr = oidptr + var->name_length;
        *length += var->name_length;
    }

    DEBUGMSGTL(("header_complex_generate_oid", "generated: "));
    DEBUGMSGOID(("header_complex_generate_oid", name, *length));
    DEBUGMSG(("header_complex_generate_oid", "\n"));
}

int
header_hrswinst(struct variable *vp,
                oid * name,
                size_t * length,
                int exact, size_t * var_len, WriteMethod ** write_method)
{
#define HRSWINST_NAME_LENGTH	9
    oid             newname[MAX_OID_LEN];
    int             result;

    DEBUGMSGTL(("host/hr_swinst", "var_hrswinst: "));
    DEBUGMSGOID(("host/hr_swinst", name, *length));
    DEBUGMSG(("host/hr_swinst", " %d\n", exact));

    memcpy((char *) newname, (char *) vp->name, vp->namelen * sizeof(oid));
    newname[HRSWINST_NAME_LENGTH] = 0;
    result = snmp_oid_compare(name, *length, newname, vp->namelen + 1);
    if ((exact && (result != 0)) || (!exact && (result >= 0)))
        return (MATCH_FAILED);
    memcpy((char *) name, (char *) newname,
           (vp->namelen + 1) * sizeof(oid));
    *length = vp->namelen + 1;

    *write_method = 0;
    *var_len = sizeof(long);    /* default to 'long' results */
    return (MATCH_SUCCEEDED);
}

int
header_hrdevice (struct variable *vp,
                 oid * name, size_t * length, int exact, size_t * var_len, WriteMethod ** write_method)
{
#define HRDEV_ENTRY_NAME_LENGTH    11
    oid newname[MAX_OID_LEN];

    int dev_idx, LowIndex = -1, LowType = -1;

    int result;

    DEBUGMSGTL (("host/hr_device", "var_hrdevice: "));
    DEBUGMSGOID (("host/hr_device", name, *length));
    DEBUGMSG (("host/hr_device", " %d\n", exact));

    memcpy ((char *) newname, (char *) vp->name, (int) vp->namelen * sizeof (oid));


    /*
     *  Find the "next" device entry.
     *  If we're in the middle of the table, then there's
     *     no point in examining earlier types of devices,
     *     so set the starting type to that of the variable
     *     being queried.
     *  If we've moved from one column of the table to another,
     *     then we need to start at the beginning again.
     *     (i.e. the 'compare' fails to match)
     *  Similarly if we're at the start of the table
     *     (i.e. *length is too short to be a full instance)
     */

    if ((snmp_oid_compare (vp->name, vp->namelen, name, vp->namelen) == 0) && (*length > HRDEV_ENTRY_NAME_LENGTH))
        current_type = (name[HRDEV_ENTRY_NAME_LENGTH] >> HRDEV_TYPE_SHIFT);
    else

int
netsnmp_null_handler(netsnmp_mib_handler *handler,
                     netsnmp_handler_registration *reginfo,
                     netsnmp_agent_request_info *reqinfo,
                     netsnmp_request_info *requests)
{
    DEBUGMSGTL(("helper:null", "Got request\n"));

    DEBUGMSGTL(("helper:null", "  oid:"));
    DEBUGMSGOID(("helper:null", requests->requestvb->name,
                 requests->requestvb->name_length));
    DEBUGMSG(("helper:null", "\n"));

    switch (reqinfo->mode) {
    case MODE_GETNEXT:
    case MODE_GETBULK:
        return SNMP_ERR_NOERROR;

    case MODE_GET:
        netsnmp_set_all_requests_error(reqinfo, requests,
                                       SNMP_NOSUCHOBJECT);
        return SNMP_ERR_NOERROR;

    default:
        netsnmp_set_all_requests_error(reqinfo, requests,
                                       SNMP_ERR_NOSUCHNAME);
        return SNMP_ERR_NOERROR;
    }
}

u_char *
agentx_var(struct variable *vp,
           oid *name,
           size_t *length,
           int exact,
           size_t *var_len,
           WriteMethod **write_method)
{
    int result;
    AddVarMethod *add_method;

    DEBUGMSGTL(("agentx/master","request to pass to client:  "));
    DEBUGMSGOID(("agentx/master", name, *length));
    DEBUGMSG(("agentx/master","\n"));
	/*
	 * If the requested OID precedes the area of responsibility
	 * of this subagent (and hence it's presumable a non-exact match),
	 * then update the "matched" name to be the starting point
	 */
        /* XXX shouldn't we check exact in this case? */
    result = snmp_oid_compare(name, *length, vp->name, vp->namelen);
    if ( result < 0 ) {
	memcpy((char *)name,(char *)vp->name, vp->namelen*sizeof(oid));
	*length = vp->namelen;
    }
				/* Return a pointer to an appropriate method */
    add_method  = agentx_add_request;
    return (u_char*)add_method;
}

/** starts the recurring cache_load callback */
unsigned int
netsnmp_cache_timer_start(netsnmp_cache *cache)
{
    if(NULL == cache)
        return 0;

    DEBUGMSGTL(( "cache_timer:start", "OID: "));
    DEBUGMSGOID(("cache_timer:start", cache->rootoid, cache->rootoid_len));
    DEBUGMSG((   "cache_timer:start", "\n"));

    if(0 != cache->timer_id) {
        snmp_log(LOG_WARNING, "cache has existing timer id.\n");
        return cache->timer_id;
    }
    
    if(! (cache->flags & NETSNMP_CACHE_AUTO_RELOAD)) {
        snmp_log(LOG_ERR,
                 "cache_timer_start called but auto_reload not set.\n");
        return 0;
    }

    cache->timer_id = snmp_alarm_register(cache->timeout, SA_REPEAT,
                                          _timer_reload, cache);
    if(0 == cache->timer_id) {
        snmp_log(LOG_ERR,"could not register alarm\n");
        return 0;
    }

    cache->flags &= ~NETSNMP_CACHE_AUTO_RELOAD;
    DEBUGMSGT(("cache_timer:start",
               "starting timer %lu for cache %p\n", cache->timer_id, cache));
    return cache->timer_id;
}

int
add(netsnmp_pdu *pdu, const char *mibnodename,
    oid * index, size_t indexlen)
{
    oid             base[MAX_OID_LEN];
    size_t          base_length = MAX_OID_LEN;

    memset(base, 0, MAX_OID_LEN * sizeof(oid));

    if (!snmp_parse_oid(mibnodename, base, &base_length)) {
        snmp_perror(mibnodename);
        fprintf(stderr, "couldn't find mib node %s, giving up\n",
                mibnodename);
#if HAVE_CURSES_H
        endwin();
#endif
        exit(1);
    }

    if (index && indexlen) {
        memcpy(&(base[base_length]), index, indexlen * sizeof(oid));
        base_length += indexlen;
    }
    DEBUGMSGTL(("add", "created: "));
    DEBUGMSGOID(("add", base, base_length));
    DEBUGMSG(("add", "\n"));
    snmp_add_null_var(pdu, base, base_length);

    return base_length;
}

int
my_test_handler(netsnmp_mib_handler *handler,
                netsnmp_handler_registration *reginfo,
                netsnmp_agent_request_info *reqinfo,
                netsnmp_request_info *requests)
{

    oid             myoid1[] = { 1, 2, 3, 4, 5, 6 };
    static u_long   accesses = 0;

    DEBUGMSGTL(("testhandler", "Got request:\n"));
    /*
     * loop through requests 
     */
    while (requests) {
        netsnmp_variable_list *var = requests->requestvb;

        DEBUGMSGTL(("testhandler", "  oid:"));
        DEBUGMSGOID(("testhandler", var->name, var->name_length));
        DEBUGMSG(("testhandler", "\n"));

        switch (reqinfo->mode) {
        case MODE_GET:
            if (netsnmp_oid_equals(var->name, var->name_length, myoid1, 6)
                == 0) {
                snmp_set_var_typed_value(var, ASN_INTEGER,
                                         (u_char *) & accesses,
                                         sizeof(accesses));
                return SNMP_ERR_NOERROR;
            }
            break;

        case MODE_GETNEXT:
            if (snmp_oid_compare(var->name, var->name_length, myoid1, 6)
                < 0) {
                snmp_set_var_objid(var, myoid1, 6);
                snmp_set_var_typed_value(var, ASN_INTEGER,
                                         (u_char *) & accesses,
                                         sizeof(accesses));
                return SNMP_ERR_NOERROR;
            }
            break;

        default:
            netsnmp_set_request_error(reqinfo, requests, SNMP_ERR_GENERR);
            break;
        }

        requests = requests->next;
    }
    return SNMP_ERR_NOERROR;
}

void
header_complex_dump(struct header_complex_index *thestuff)
{
    struct header_complex_index *hciptr;
    oid             oidsave[MAX_OID_LEN];
    size_t          len;

    for (hciptr = thestuff; hciptr != NULL; hciptr = hciptr->next) {
        DEBUGMSGTL(("header_complex_dump", "var:  "));
        header_complex_generate_oid(oidsave, &len, NULL, 0, hciptr->);
        DEBUGMSGOID(("header_complex_dump", oidsave, len));
        DEBUGMSG(("header_complex_dump", "\n"));
    }
}

static void
fillConfigOid(oid * name, struct tunnel *tunnel)
{
    name[0] = ((unsigned char *) &tunnel->local)[0];
    name[1] = ((unsigned char *) &tunnel->local)[1];
    name[2] = ((unsigned char *) &tunnel->local)[2];
    name[3] = ((unsigned char *) &tunnel->local)[3];
    name[4] = ((unsigned char *) &tunnel->remote)[0];
    name[5] = ((unsigned char *) &tunnel->remote)[1];
    name[6] = ((unsigned char *) &tunnel->remote)[2];
    name[7] = ((unsigned char *) &tunnel->remote)[3];
    name[8] = tunnel->encaps;
    name[9] = tunnel->id;
    DEBUGMSGOID(("tunnel", name, 10));
}