Implemented table linked list, decompression and encryption. Tests have been improved.

1 files changed, 56 insertions, 0 deletions

diff --git a/src/table.h b/src/table.h
new file mode 100644
index 0000000..488e67f
--- /dev/null
+++ b/src/table.h
@@ -0,0 +1,56 @@
+/* table.h -- Code for handling the archive's table section.
+
+   Copyright (C) 2017 Jakob Tsar-Fox, All Rights Reserved.
+
+   This file is part of Nekopack.
+
+   Nekopack is free software: you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by the
+   Free Software Foundation, either version 3 of the License, or (at
+   your option) any later version.
+
+   Nekopack is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+   General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with Nekopack. If not, see <http://www.gnu.org/licenses/>. */
+
+#pragma once
+
+#include <stdbool.h>
+#include <stdint.h>
+
+#include "io.h"
+
+
+/* Structure representing one segment associated with a File entry. */
+struct segment {
+    bool     compressed; /* Whether or not the segment is compressed. */
+    uint64_t offset; /* Offset to the segment's beginning. */
+    uint64_t compressed_size; /* Size of compressed segment. */
+    uint64_t decompressed_size; /* Size of decompressed segment. */
+};
+
+/* Structure representing an entry in the archive's table section. */
+struct table_entry {
+    bool               encrypted; /* Whether or not it's encrypted. */
+    bool               compressed; /* Whether or not it's compressed. */
+    uint32_t           key; /* File-specific key for encryption. */
+    uint64_t           ctime; /* Timestamp of creation time. */
+    uint64_t           segment_count; /* Number of segments. */
+    struct segment     **segments; /* Array of associated segments. */
+    struct table_entry *next; /* Pointer to the next entry. */
+};
+
+
+/* Returns the root of a linked list containing all of the files listed
+   in the archive's table section. */
+struct table_entry *parse_table(struct stream *s);
+
+/* Inserts `e` to the end of the linked list specified by `root`. */
+void entry_append(struct table_entry *root, struct table_entry *e);
+
+/* Frees every entry in the linked list specified by `cur`. */
+void entry_free(struct table_entry *cur);