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-rw-r--r--src/utils/list.c112
1 files changed, 112 insertions, 0 deletions
diff --git a/src/utils/list.c b/src/utils/list.c
new file mode 100644
index 0000000..d47f761
--- /dev/null
+++ b/src/utils/list.c
@@ -0,0 +1,112 @@
+/*
+ * 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"
+
+void destroy_list(struct list *l)
+{
+ struct list *save;
+ while(l != NULL) {
+ save = l->next;
+ free(l);
+ l = save;
+ }
+}
+
+void add_elt(struct list **l, const char *key, json_object *value)
+{
+ struct list *new_elt = malloc(sizeof(struct list));
+ new_elt->key = key;
+ new_elt->value = value;
+ new_elt->next = NULL;
+
+ if(*l) {
+ while((*l)->next != NULL) {
+ *l = (*l)->next;
+ }
+ (*l)->next = new_elt;
+ }
+ else {
+ *l = new_elt;
+ }
+}
+
+void add_key(struct list **l, const char *key)
+{
+ struct list *new_elt = malloc(sizeof(struct list));
+ new_elt->key = key;
+ new_elt->value = NULL;
+ new_elt->next = NULL;
+
+ if(*l) {
+ while((*l)->next != NULL) {
+ *l = (*l)->next;
+ }
+ (*l)->next = new_elt;
+ }
+ else {
+ *l = new_elt;
+ }
+}
+
+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;
+}