help: auto construct help

And add some more verbosity to the help message.

1 files changed, 3 insertions, 2 deletions

diff --git a/src/apk_blob.h b/src/apk_blob.h
index 7e63293..29da722 100644
--- a/src/apk_blob.h
+++ b/src/apk_blob.h
@@ -4,7 +4,7 @@
  * Copyright (C) 2008 Timo Teräs <timo.teras@iki.fi>
  * All rights reserved.
  *
- * This program is free software; you can redistribute it and/or modify it 
+ * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 as published
  * by the Free Software Foundation. See http://www.gnu.org/ for details.
  */
@@ -19,6 +19,7 @@ struct apk_blob {
 	char *ptr;
 };
 typedef struct apk_blob apk_blob_t;
+typedef int (*apk_blob_cb)(void *ctx, apk_blob_t blob);
 
 #define APK_BLOB_IS_NULL(blob)		(blob.ptr == NULL)
 
@@ -44,7 +45,7 @@ unsigned long apk_blob_hash(apk_blob_t str);
 int apk_blob_compare(apk_blob_t a, apk_blob_t b);
 
 int apk_blob_for_each_segment(apk_blob_t blob, const char *split,
-			      int (*cb)(void *ctx, apk_blob_t blob), void *ctx);
+			      apk_blob_cb cb, void *ctx);
 
 int apk_hexdump_parse(apk_blob_t to, apk_blob_t from);
 int apk_hexdump_format(int tolen, char *to, apk_blob_t from);