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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 17:40:56 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 17:40:56 +0000
commitc248d29056abbc1fc4c5dc178bab48fb8d2c1fcb (patch)
tree4a13fc30604509224504e1911bc976e5df7bdf05 /htp/htp_list.h
parentInitial commit. (diff)
downloadlibhtp-c248d29056abbc1fc4c5dc178bab48fb8d2c1fcb.tar.xz
libhtp-c248d29056abbc1fc4c5dc178bab48fb8d2c1fcb.zip
Adding upstream version 1:0.5.47.upstream/1%0.5.47
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'htp/htp_list.h')
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diff --git a/htp/htp_list.h b/htp/htp_list.h
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+/***************************************************************************
+ * Copyright (c) 2009-2010 Open Information Security Foundation
+ * Copyright (c) 2010-2013 Qualys, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+
+ * - Neither the name of the Qualys, Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ ***************************************************************************/
+
+/**
+ * @file
+ * @author Ivan Ristic <ivanr@webkreator.com>
+ */
+
+#ifndef HTP_LIST_H
+#define HTP_LIST_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// The default list implementation is array-based. The
+// linked list version is not fully implemented yet.
+#define htp_list_t htp_list_array_t
+#define htp_list_add htp_list_array_push
+#define htp_list_create htp_list_array_create
+#define htp_list_init htp_list_array_init
+#define htp_list_clear htp_list_array_clear
+#define htp_list_destroy htp_list_array_destroy
+#define htp_list_release htp_list_array_release
+#define htp_list_get htp_list_array_get
+#define htp_list_pop htp_list_array_pop
+#define htp_list_push htp_list_array_push
+#define htp_list_replace htp_list_array_replace
+#define htp_list_size htp_list_array_size
+#define htp_list_shift htp_list_array_shift
+
+// Data structures
+
+typedef struct htp_list_array_t htp_list_array_t;
+typedef struct htp_list_linked_t htp_list_linked_t;
+
+#include "htp_core.h"
+#include "bstr.h"
+
+// Functions
+
+/**
+ * Create new array-backed list.
+ *
+ * @param[in] size
+ * @return Newly created list.
+ */
+htp_list_array_t *htp_list_array_create(size_t size);
+
+/**
+ * Initialize an array-backed list.
+ *
+ * @param[in] l
+ * @param[in] size
+ * @return HTP_OK or HTP_ERROR if allocation failed
+ */
+htp_status_t htp_list_array_init(htp_list_array_t *l, size_t size);
+
+/**
+ * Remove all elements from the list. It is the responsibility of the caller
+ * to iterate over list elements and deallocate them if necessary, prior to
+ * invoking this function.
+ *
+ * @param[in] l
+ */
+void htp_list_array_clear(htp_list_array_t *l);
+
+/**
+ * Free the memory occupied by this list. This function assumes
+ * the elements held by the list were freed beforehand.
+ *
+ * @param[in] l
+ */
+void htp_list_array_destroy(htp_list_array_t *l);
+
+/**
+ * Free the memory occupied by this list, except itself.
+ * This function assumes the elements held by the list
+ * were freed beforehand.
+ *
+ * @param[in] l
+ */
+void htp_list_array_release(htp_list_array_t *l);
+
+/**
+ * Find the element at the given index.
+ *
+ * @param[in] l
+ * @param[in] idx
+ * @return the desired element, or NULL if the list is too small, or
+ * if the element at that position carries a NULL
+ */
+void *htp_list_array_get(const htp_list_array_t *l, size_t idx);
+
+/**
+ * Remove one element from the end of the list.
+ *
+ * @param[in] l
+ * @return The removed element, or NULL if the list is empty.
+ */
+void *htp_list_array_pop(htp_list_array_t *l);
+
+/**
+ * Add new element to the end of the list, expanding the list as necessary.
+ *
+ * @param[in] l
+ * @param[in] e
+ * @return HTP_OK on success or HTP_ERROR on failure.
+ *
+ */
+htp_status_t htp_list_array_push(htp_list_array_t *l, void *e);
+
+/**
+ * Replace the element at the given index with the provided element.
+ *
+ * @param[in] l
+ * @param[in] idx
+ * @param[in] e
+ *
+ * @return HTP_OK if an element with the given index was replaced; HTP_ERROR
+ * if the desired index does not exist.
+ */
+htp_status_t htp_list_array_replace(htp_list_array_t *l, size_t idx, void *e);
+
+/**
+ * Returns the size of the list.
+ *
+ * @param[in] l
+ * @return List size.
+ */
+size_t htp_list_array_size(const htp_list_array_t *l);
+
+/**
+ * Remove one element from the beginning of the list.
+ *
+ * @param[in] l
+ * @return The removed element, or NULL if the list is empty.
+ */
+void *htp_list_array_shift(htp_list_array_t *l);
+
+
+// Linked list
+
+/**
+ * Create a new linked list.
+ *
+ * @return The newly created list, or NULL on memory allocation failure
+ */
+htp_list_linked_t *htp_list_linked_create(void);
+
+/**
+ * Destroy list. This function will not destroy any of the
+ * data stored in it. You'll have to do that manually beforehand.
+ *
+ * @param[in] l
+ */
+void htp_list_linked_destroy(htp_list_linked_t *l);
+
+/**
+ * Is the list empty?
+ *
+ * @param[in] l
+ * @return 1 if the list is empty, 0 if it is not
+ */
+int htp_list_linked_empty(const htp_list_linked_t *l);
+
+/**
+ * Remove one element from the end of the list.
+ *
+ * @param[in] l
+ * @return Pointer to the removed element, or NULL if the list is empty.
+ */
+void *htp_list_linked_pop(htp_list_linked_t *l);
+
+/**
+ * Add element to list.
+ *
+ * @param[in] l
+ * @param[in] e
+ * @return HTP_OK on success, HTP_ERROR on error.
+ */
+htp_status_t htp_list_linked_push(htp_list_linked_t *l, void *e);
+
+/**
+ * Remove one element from the beginning of the list.
+ *
+ * @param[in] l
+ * @return Pointer to the removed element, or NULL if the list is empty.
+ */
+void *htp_list_linked_shift(htp_list_linked_t *l);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* HTP_LIST_H */
+