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/*
* Copyright (C) 2018 "IoT.bzh"
* Author "Romain Forlot" <romain.forlot@iot.bzh>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "list.h"
#include "string.h"
#include <stdio.h>
#include <stdlib.h>
void destroy_list(struct list* l)
{
struct list* save;
while (l != NULL) {
save = l->next;
free(l->key);
free(l);
l = save;
}
}
void add_elt(struct list** l, const char* key, const char* suffix, json_object* value)
{
struct list* new_elt = NULL;
char *suffixed_key = NULL;
size_t key_len = strlen(key), suffix_len = -1;
if (suffix == NULL) {
suffix = "";
suffix_len=0;
} else {
suffix_len = strlen(suffix);
}
suffixed_key = malloc(key_len + suffix_len + 1);
if (!suffixed_key) {
fprintf(stderr, "list.c, add_elt() : can't allocate 'suffixed_key' (out of memory)");
exit(1);
}
strncpy(suffixed_key, key, key_len);
strncpy(suffixed_key+key_len, suffix, suffix_len+1);
// search tail
new_elt = *l;
while (new_elt != NULL) {
l = &new_elt->next;
new_elt = new_elt->next;
}
// alloc new elem
new_elt = malloc(sizeof(struct list));
if (!new_elt) {
fprintf(stderr, "list.c, add_elt() : can't allocate 'new_elt' (out of memory)");
exit(1);
}
*l = new_elt;
new_elt->key = suffixed_key;
new_elt->value = value;
new_elt->next = NULL;
}
void add_key(struct list** l, const char* key, const char* suffix)
{
add_elt(l, key, suffix, NULL);
}
int set_value(struct list* l, json_object* val, int index)
{
int i;
for (i = 0; i < index; i++) {
l = l->next;
if (l == NULL)
return -1;
}
l->value = val;
return 0;
}
struct list* get_elt(struct list* l, int index)
{
int i;
for (i = 0; i < index; i++) {
l = l->next;
if (l == NULL)
return NULL;
}
return l;
}
struct list* find_elt_from_key(struct list* l, const char* key)
{
while (l != NULL) {
if (strcasecmp(l->key, key) == 0)
return l;
l = l->next;
}
return NULL;
}
json_object* find_key_value(struct list* l, const char* key)
{
while (l != NULL) {
if (strcasecmp(l->key, key) == 0)
return l->value;
l = l->next;
}
return NULL;
}
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