netsnmphoststable.c

snmp的源代码,已经在我的ubuntu下编译通过

                break;
            case COLUMN_NETSNMPHOSTADDRESS:
                {
                    char           *retval;
                    size_t          retval_len = 0;
                    struct undoInfo *ui = NULL;
                    int             ret;

                    /** first, get the old value */
                    retval =
                        get_netSnmpHostAddress(ci->data_context,
                                               &retval_len);
                    if (retval) {
                        ui = SNMP_MALLOC_STRUCT(undoInfo);
                        ui->len = retval_len;
                        memdup((u_char **) & ui->ptr,
                               (u_char *) retval, ui->len);
                    }

                    /** check the new value, possibly against the
                        older value for a valid state transition */
                    ret =
                        check_netSnmpHostAddress(request->requestvb->type,
                                                 (char *) request->
                                                 requestvb->val.string,
                                                 request->requestvb->
                                                 val_len, retval,
                                                 retval_len);
                    if (ret != 0) {
                        netsnmp_set_request_error(reqinfo, request, ret);
                        netSnmpHostsTable_free_undoInfo(ui);
                    } else if (ui) {
                        /** remember information for undo purposes later */
                        netsnmp_oid_stash_add_data(&undoStorage,
                                                   suffix, suffix_len, ui);
                    }

                }
                break;
            case COLUMN_NETSNMPHOSTSTORAGE:
                {
                    long           *retval;
                    size_t          retval_len = 0;
                    struct undoInfo *ui = NULL;
                    int             ret;

                    /** first, get the old value */
                    retval =
                        get_netSnmpHostStorage(ci->data_context,
                                               &retval_len);
                    if (retval) {
                        ui = SNMP_MALLOC_STRUCT(undoInfo);
                        ui->len = retval_len;
                        memdup((u_char **) & ui->ptr,
                               (u_char *) retval, ui->len);
                    }

                    /** check the new value, possibly against the
                        older value for a valid state transition */
                    ret =
                        check_netSnmpHostStorage(request->requestvb->type,
                                                 (long *) request->
                                                 requestvb->val.string,
                                                 request->requestvb->
                                                 val_len, retval,
                                                 retval_len);
                    if (ret != 0) {
                        netsnmp_set_request_error(reqinfo, request, ret);
                        netSnmpHostsTable_free_undoInfo(ui);
                    } else if (ui) {
                        /** remember information for undo purposes later */
                        netsnmp_oid_stash_add_data(&undoStorage,
                                                   suffix, suffix_len, ui);
                    }

                }
                break;
            case COLUMN_NETSNMPHOSTROWSTATUS:
                {
                    long           *retval;
                    size_t          retval_len = 0;
                    struct undoInfo *ui = NULL;
                    int             ret;

                    /** first, get the old value */
                    retval =
                        get_netSnmpHostRowStatus(ci->data_context,
                                                 &retval_len);
                    if (retval) {
                        ui = SNMP_MALLOC_STRUCT(undoInfo);
                        ui->len = retval_len;
                        memdup((u_char **) & ui->ptr,
                               (u_char *) retval, ui->len);
                    }

                    /** check the new value, possibly against the
                        older value for a valid state transition */
                    ret =
                        check_netSnmpHostRowStatus(request->requestvb->
                                                   type,
                                                   (long *) request->
                                                   requestvb->val.string,
                                                   request->requestvb->
                                                   val_len, retval,
                                                   retval_len);
                    if (ret != 0) {
                        netsnmp_set_request_error(reqinfo, request, ret);
                        netSnmpHostsTable_free_undoInfo(ui);
                    } else if (ui) {
                        /** remember information for undo purposes later */
                        netsnmp_oid_stash_add_data(&undoStorage,
                                                   suffix, suffix_len, ui);
                    }

                }
                break;
            default:
                netsnmp_set_request_error(reqinfo, request,
                                          SNMP_ERR_NOTWRITABLE);
                break;
            }
            break;

        case MODE_SET_ACTION:
            /** save a variable copy */
            switch (table_info->colnum) {
            case COLUMN_NETSNMPHOSTADDRESSTYPE:
                {
                    int             ret;
                    ret = set_netSnmpHostAddressType(ci->data_context,
                                                     (long *) request->
                                                     requestvb->val.string,
                                                     request->requestvb->
                                                     val_len);
                    if (ret) {
                        netsnmp_set_request_error(reqinfo, request, ret);
                    }
                }
                break;
            case COLUMN_NETSNMPHOSTADDRESS:
                {
                    int             ret;
                    ret = set_netSnmpHostAddress(ci->data_context,
                                                 (char *) request->
                                                 requestvb->val.string,
                                                 request->requestvb->
                                                 val_len);
                    if (ret) {
                        netsnmp_set_request_error(reqinfo, request, ret);
                    }
                }
                break;
            case COLUMN_NETSNMPHOSTSTORAGE:
                {
                    int             ret;
                    ret = set_netSnmpHostStorage(ci->data_context,
                                                 (long *) request->
                                                 requestvb->val.string,
                                                 request->requestvb->
                                                 val_len);
                    if (ret) {
                        netsnmp_set_request_error(reqinfo, request, ret);
                    }
                }
                break;
            case COLUMN_NETSNMPHOSTROWSTATUS:
                {
                    int             ret;
                    ret = set_netSnmpHostRowStatus(ci->data_context,
                                                   (long *) request->
                                                   requestvb->val.string,
                                                   request->requestvb->
                                                   val_len);
                    if (ret) {
                        netsnmp_set_request_error(reqinfo, request, ret);
                    }
                    if (*request->requestvb->val.integer == RS_DESTROY) {
                        ci->new_row = -1;
                    }
                }
                break;
            }
            break;

        case MODE_SET_COMMIT:
            if (!ci->have_committed) {
                    /** do this once per row only */
                netSnmpHostsTable_commit_row(&ci->data_context,
                                             ci->new_row);
                ci->have_committed = 1;
            }
            break;

        case MODE_SET_UNDO:
             /** save a variable copy */
            switch (table_info->colnum) {
            case COLUMN_NETSNMPHOSTADDRESSTYPE:
                {
                    int             retval;
                    struct undoInfo *ui;
                    ui = netsnmp_oid_stash_get_data(undoStorage,
                                                    suffix, suffix_len);
                    retval =
                        set_netSnmpHostAddressType(ci->data_context,
                                                   ui->ptr, ui->len);
                    if (retval) {
                        netsnmp_set_request_error(reqinfo, request,
                                                  SNMP_ERR_UNDOFAILED);
                    }
                }
                break;
            case COLUMN_NETSNMPHOSTADDRESS:
                {
                    int             retval;
                    struct undoInfo *ui;
                    ui = netsnmp_oid_stash_get_data(undoStorage,
                                                    suffix, suffix_len);
                    retval =
                        set_netSnmpHostAddress(ci->data_context, ui->ptr,
                                               ui->len);
                    if (retval) {
                        netsnmp_set_request_error(reqinfo, request,
                                                  SNMP_ERR_UNDOFAILED);
                    }
                }
                break;
            case COLUMN_NETSNMPHOSTSTORAGE:
                {
                    int             retval;
                    struct undoInfo *ui;
                    ui = netsnmp_oid_stash_get_data(undoStorage,
                                                    suffix, suffix_len);
                    retval =
                        set_netSnmpHostStorage(ci->data_context, ui->ptr,
                                               ui->len);
                    if (retval) {
                        netsnmp_set_request_error(reqinfo, request,
                                                  SNMP_ERR_UNDOFAILED);
                    }
                }
                break;
            case COLUMN_NETSNMPHOSTROWSTATUS:
                {
                    int             retval;
                    struct undoInfo *ui;
                    ui = netsnmp_oid_stash_get_data(undoStorage,
                                                    suffix, suffix_len);
                    retval =
                        set_netSnmpHostRowStatus(ci->data_context, ui->ptr,
                                                 ui->len);
                    if (retval) {
                        netsnmp_set_request_error(reqinfo, request,
                                                  SNMP_ERR_UNDOFAILED);
                    }
                }
                break;
            }
            break;

        case MODE_SET_FREE:
            break;

        default:
            snmp_log(LOG_ERR,
                     "problem encountered in netSnmpHostsTable_handler: unsupported mode\n");
        }
    }

    /** clean up after all requset processing has ended */
    switch (reqinfo->mode) {
    case MODE_SET_UNDO:
    case MODE_SET_FREE:
    case MODE_SET_COMMIT:
        /** clear out the undo cache */
        netsnmp_oid_stash_free(&undoStorage,
                               netSnmpHostsTable_free_undoInfo);
        netsnmp_oid_stash_free(&commitStorage, netsnmp_oid_stash_no_free);
    }


    return SNMP_ERR_NOERROR;
}