102 lines
2.1 KiB
C
102 lines
2.1 KiB
C
#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 *tmp, *tmp2;
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tmp = list_entry->next;
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while (tmp) {
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tmp2 = tmp;
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tmp = tmp->next;
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udev_list_entry_free(tmp2);
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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 *new, *old;
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if (uniq) {
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old = udev_list_entry_get_by_name(list_entry, name);
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if (old) {
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if (old->value && strcmp(old->value, value) == 0) {
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return old;
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}
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free(old->value);
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old->value = value ? strdup(value) : NULL;
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return old;
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}
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}
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new = calloc(1, sizeof(struct udev_list_entry));
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if (!new) {
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return NULL;
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}
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new->value = value ? strdup(value) : NULL;
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new->name = strdup(name);
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new->next = list_entry->next;
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list_entry->next = new;
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return new;
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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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struct udev_list_entry *tmp;
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if (!list_entry || !name) {
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return NULL;
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}
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tmp = list_entry;
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while (tmp) {
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if (tmp->name && strcmp(tmp->name, name) == 0) {
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return tmp;
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}
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tmp = tmp->next;
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}
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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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