183 lines
3.5 KiB
C
183 lines
3.5 KiB
C
/* device.c: manipulation of a container describing a NUT device
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*
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* Copyright (C) 2011 - Frederic Bohe <fredericbohe@eaton.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "nutscan-device.h"
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#include <stdlib.h>
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#include <string.h>
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nutscan_device_t * nutscan_new_device()
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{
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nutscan_device_t * device;
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device = malloc(sizeof(nutscan_device_t));
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if( device==NULL) {
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return NULL;
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}
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memset(device,0,sizeof(nutscan_device_t));
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return device;
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}
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static void deep_free_device(nutscan_device_t * device)
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{
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nutscan_options_t * current;
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nutscan_options_t * old;
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if(device==NULL) {
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return;
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}
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if(device->driver) {
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free(device->driver);
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}
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if(device->port) {
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free(device->port);
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}
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current = &device->opt;
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if(current->option != NULL) {
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free(current->option);
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}
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if(current->value != NULL) {
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free(current->value);
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}
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current = current->next;
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while (current != NULL) {
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if(current->option != NULL) {
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free(current->option);
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}
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if(current->value != NULL) {
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free(current->value);
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}
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old = current;
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current = current->next;
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free(old);
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};
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if(device->prev) {
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device->prev->next = device->next;
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}
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if(device->next) {
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device->next->prev = device->prev;
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}
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free(device);
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}
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void nutscan_free_device(nutscan_device_t * device)
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{
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if(device==NULL) {
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return;
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}
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while(device->prev != NULL) {
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deep_free_device(device->prev);
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}
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while(device->next != NULL) {
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deep_free_device(device->next);
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}
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free(device);
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}
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void nutscan_add_option_to_device(nutscan_device_t * device,char * option, char * value)
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{
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nutscan_options_t * opt;
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opt = &(device->opt);
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/* search for last entry */
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if( opt->option != NULL ) {
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while( opt->next != NULL ) {
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opt = opt->next;
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}
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opt->next = malloc(sizeof(nutscan_options_t));
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opt = opt->next;
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memset(opt,0,sizeof(nutscan_options_t));
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}
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if( option != NULL ) {
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opt->option = strdup(option);
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}
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else {
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opt->option = NULL;
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}
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if( value != NULL ) {
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opt->value = strdup(value);
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}
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else {
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opt->value = NULL;
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}
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}
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nutscan_device_t * nutscan_add_device_to_device(nutscan_device_t * first, nutscan_device_t * second)
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{
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nutscan_device_t * dev1=NULL;
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nutscan_device_t * dev2=NULL;
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/* Get end of first device */
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if( first != NULL) {
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dev1 = first;
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while(dev1->next != NULL) {
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dev1 = dev1->next;
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}
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}
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else {
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if( second == NULL ) {
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return NULL;
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}
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/* return end of second */
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dev2 = second;
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while(dev2->next != NULL) {
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dev2 = dev2->next;
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}
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return dev2;
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}
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/* Get start of second */
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if( second != NULL ) {
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dev2 = second;
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while(dev2->prev != NULL) {
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dev2 = dev2->prev;
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}
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}
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else {
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/* return end of first */
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dev1 = first;
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while(dev1->next != NULL) {
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dev1 = dev1->next;
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}
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return dev1;
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}
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/* join both */
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dev1->next = dev2;
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dev2->prev = dev1;
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/* return end of both */
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while(dev2->next != NULL) {
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dev2 = dev2->next;
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}
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return dev2;
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}
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