--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/image.h	Wed Nov 25 21:13:03 2020 +0100
@@ -0,0 +1,54 @@
+/*
+ * image.c -- image definition
+ *
+ * Copyright (c) 2020 David Demelier <markand@malikania.fr>
+ * 
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef IMGPASTER_IMAGE_H
+#define IMGPASTER_IMAGE_H
+
+#include <stdbool.h>
+#include <stddef.h>
+#include <time.h>
+
+#define IMAGE_DURATION_HOUR     3600            /*!< Seconds in one hour. */
+#define IMAGE_DURATION_DAY      86400           /*!< Seconds in one day. */
+#define IMAGE_DURATION_WEEK     604800          /*!< Seconds in one week. */
+#define IMAGE_DURATION_MONTH    2592000         /*!< Rounded to 30 days. */
+
+/**
+ * \brief Paste structure.
+ *
+ * Every string in the paste is assumed to be allocated on the heap.
+ */
+struct image {
+	char *id;
+	char *title;
+	char *author;
+	void *data;
+	size_t datasz;
+	char *filename;
+	time_t timestamp;
+	bool visible;
+	long long int duration;
+};
+
+void
+image_finish(struct image *);
+
+bool
+image_isvalid(const void *, size_t);
+
+#endif /* !IMGPASTER_IMAGE_H */