From 690f160e36849a41199023c5addd54afd00f01fd Mon Sep 17 00:00:00 2001
From: Nick Bowler <nbowler@draconx.ca>
Date: Sun, 7 Feb 2010 17:05:25 -0500
Subject: [PATCH] liblbx: Add file operations for handling LBX archive members.

This allows, for example, the image handling code to read directly from
the archive.
---
 src/fops.c | 27 +++++++++++++++++++++++++++
 src/lbx.h  |  3 +++
 2 files changed, 30 insertions(+)

diff --git a/src/fops.c b/src/fops.c
index 834c8b2..2a3db82 100644
--- a/src/fops.c
+++ b/src/fops.c
@@ -115,3 +115,30 @@ const struct lbx_file_ops lbx_pipe_fops = {
 	.tell = pipe_tell,
 	.eof  = pipe_eof,
 };
+
+static size_t lbx_read(void *buf, size_t size, void *handle)
+{
+	return lbx_file_read(handle, buf, size);
+}
+
+static int lbx_seek(void *handle, long offset, int whence)
+{
+	return lbx_file_seek(handle, offset, whence);
+}
+
+static long lbx_tell(void *handle)
+{
+	return lbx_file_tell(handle);
+}
+
+static int lbx_eof(void *handle)
+{
+	return lbx_file_eof(handle);
+}
+
+const struct lbx_file_ops lbx_arch_fops = {
+	.read = lbx_read,
+	.seek = lbx_seek,
+	.tell = lbx_tell,
+	.eof  = lbx_eof,
+};
diff --git a/src/lbx.h b/src/lbx.h
index 72532aa..29a4083 100644
--- a/src/lbx.h
+++ b/src/lbx.h
@@ -31,6 +31,9 @@ extern const struct lbx_file_ops lbx_default_fops;
 /* I/O operations for un-seekable files (e.g. pipes). */
 extern const struct lbx_file_ops lbx_pipe_fops;
 
+/* I/O operations for LBX archive members. */
+extern const struct lbx_file_ops lbx_arch_fops;
+
 /* Opaque */
 typedef struct lbx_state LBX;
 typedef struct lbx_file_state LBXfile;
-- 
2.43.2