130 lines
3.4 KiB
C
130 lines
3.4 KiB
C
/*
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* Copyright (c) 2020-2021 illiliti <illiliti@protonmail.com>
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* SPDX-License-Identifier: ISC
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <string.h>
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#include <stdlib.h>
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#include "udev.h"
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#include "udev_list.h"
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void udev_list_entry_init(struct udev_list_entry *list_entry)
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{
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list_entry->value = NULL;
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list_entry->name = NULL;
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list_entry->next = NULL;
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}
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void udev_list_entry_free(struct udev_list_entry *list_entry)
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{
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free(list_entry->value);
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free(list_entry->name);
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free(list_entry);
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}
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void udev_list_entry_free_all(struct udev_list_entry *list_entry)
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{
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struct udev_list_entry *list_entry2 = list_entry->next;
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while (list_entry2) {
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list_entry = list_entry2;
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list_entry2 = list_entry->next;
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udev_list_entry_free(list_entry);
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}
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}
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struct udev_list_entry *udev_list_entry_add(struct udev_list_entry *list_entry, const char *name, const char *value, int uniq)
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{
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struct udev_list_entry *list_entry2;
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if (uniq) {
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list_entry2 = udev_list_entry_get_by_name(list_entry, name);
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if (list_entry2 && value) {
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if (list_entry2->value && strcmp(list_entry2->value, value) == 0) {
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return list_entry2;
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}
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free(list_entry2->value);
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list_entry2->value = strdup(value);
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if (!list_entry2->value) {
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return NULL;
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}
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return list_entry2;
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}
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}
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list_entry2 = calloc(1, sizeof(*list_entry2));
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if (!list_entry2) {
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return NULL;
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}
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list_entry2->name = strdup(name);
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if (!list_entry2->name) {
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free(list_entry2);
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return NULL;
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}
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if (value) {
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list_entry2->value = strdup(value);
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if (!list_entry2->value) {
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free(list_entry2->name);
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free(list_entry2);
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return NULL;
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}
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}
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list_entry2->next = list_entry->next;
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list_entry->next = list_entry2;
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return list_entry2;
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}
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struct udev_list_entry *udev_list_entry_get_next(struct udev_list_entry *list_entry)
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{
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return list_entry ? list_entry->next : NULL;
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}
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struct udev_list_entry *udev_list_entry_get_by_name(struct udev_list_entry *list_entry, const char *name)
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{
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if (!list_entry || !name) {
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return NULL;
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}
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do {
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if (list_entry->name && strcmp(list_entry->name, name) == 0) {
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return list_entry;
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}
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}
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while ((list_entry = list_entry->next));
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return NULL;
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}
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const char *udev_list_entry_get_name(struct udev_list_entry *list_entry)
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{
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return list_entry ? list_entry->name : NULL;
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}
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const char *udev_list_entry_get_value(struct udev_list_entry *list_entry)
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{
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return list_entry ? list_entry->value : NULL;
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}
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