Merging upstream version 1.44.3.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 185 insertions, 0 deletions

diff --git a/fluent-bit/src/flb_sds_list.c b/fluent-bit/src/flb_sds_list.c
new file mode 100644
index 000000000..2757ceaac
--- /dev/null
+++ b/fluent-bit/src/flb_sds_list.c
@@ -0,0 +1,185 @@
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+
+/*  Fluent Bit
+ *  ==========
+ *  Copyright (C) 2015-2022 The Fluent Bit Authors
+ *
+ *  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 <fluent-bit.h>
+#include <fluent-bit/flb_sds_list.h>
+
+size_t flb_sds_list_size(struct flb_sds_list *list)
+{
+    if (list == NULL) {
+        return 0;
+    }
+    return mk_list_size(&list->strs);
+}
+
+struct flb_sds_list *flb_sds_list_create()
+{
+    struct flb_sds_list *ret = NULL;
+
+    ret = flb_calloc(1, sizeof(struct flb_sds_list));
+    if (ret == NULL) {
+        return NULL;
+    }
+
+    mk_list_init(&ret->strs);
+
+    return ret;
+}
+
+int flb_sds_list_del(struct flb_sds_list_entry* entry)
+{
+    if (entry == NULL) {
+        return -1;
+    }
+    if (entry->str != NULL) {
+        flb_sds_destroy(entry->str);
+    }
+    mk_list_del(&entry->_head);
+    flb_free(entry);
+
+    return 0;
+}
+
+
+int flb_sds_list_destroy(struct flb_sds_list *list)
+{
+    struct mk_list *tmp = NULL;
+    struct mk_list *head = NULL;
+    struct flb_sds_list_entry *entry = NULL;
+
+    if (list == NULL) {
+        return -1;
+    }
+
+    mk_list_foreach_safe(head, tmp, &list->strs) {
+        entry = mk_list_entry(head, struct flb_sds_list_entry, _head);
+        flb_sds_list_del(entry);
+    }
+    flb_free(list);
+
+    return 0;
+}
+
+int flb_sds_list_add(struct flb_sds_list* list, char *in_str, size_t in_size)
+{
+    flb_sds_t str;
+    struct flb_sds_list_entry *entry = NULL;
+
+    if (list == NULL || in_str == NULL || in_size == 0) {
+        return -1;
+    }
+
+    str = flb_sds_create_len(in_str, in_size);
+    if (str == NULL) {
+        return -1;
+    }
+
+    entry = flb_malloc(sizeof(struct flb_sds_list_entry));
+    if (entry == NULL) {
+        flb_errno();
+        flb_sds_destroy(str);
+        return -1;
+    }
+    entry->str = str;
+
+    mk_list_add(&entry->_head, &list->strs);
+
+    return 0;
+}
+
+int flb_sds_list_destroy_str_array(char **array)
+{
+    char **str = array;
+    int i = 0;
+
+    if (array == NULL) {
+        return -1;
+    }
+    while(str[i] != NULL) {
+        flb_free(str[i]);
+        i++;
+    }
+    flb_free(array);
+
+    return 0;
+}
+
+
+/*
+  This function allocates NULL terminated string array from list. 
+  The array should be destroyed by flb_sds_list_destroy_str_array.
+*/
+char **flb_sds_list_create_str_array(struct flb_sds_list *list)
+{
+    int i = 0;
+    size_t size;
+    char **ret = NULL;
+    struct mk_list *tmp = NULL;
+    struct mk_list *head = NULL;
+    struct flb_sds_list_entry *entry = NULL;
+
+    if (list == NULL) {
+        return NULL;
+    }
+
+    size = flb_sds_list_size(list);
+    if (size == 0) {
+        return NULL;
+    }
+
+    ret = flb_malloc(sizeof(char*) * (size + 1));
+    if (ret == NULL) {
+        flb_errno();
+        return NULL;
+    }
+
+    mk_list_foreach_safe(head, tmp, &list->strs) {
+        entry = mk_list_entry(head, struct flb_sds_list_entry, _head);
+        if (entry == NULL) {
+            flb_free(ret);
+            return NULL;
+        }
+        ret[i] = flb_malloc(flb_sds_len(entry->str)+1);
+        if (ret[i] == NULL) {
+            flb_free(ret);
+            return NULL;
+        }
+        strncpy(ret[i], entry->str, flb_sds_len(entry->str));
+        ret[i][flb_sds_len(entry->str)] = '\0';
+        i++;
+    }
+    ret[i] = NULL;
+
+    return ret;
+}
+
+int flb_sds_list_del_last_entry(struct flb_sds_list* list)
+{
+    struct flb_sds_list_entry *entry = NULL;
+
+    if (list == NULL || flb_sds_list_size(list) == 0) {
+        return -1;
+    }
+
+    entry = mk_list_entry_last(&list->strs, struct flb_sds_list_entry, _head);
+    if (entry == NULL) {
+        return -1;
+    }
+    return flb_sds_list_del(entry);
+}