From d6279d601cfb3f86e0bbe3fb78b4daa9af824bf3 Mon Sep 17 00:00:00 2001
From: Martin Mares <mj@ucw.cz>
Date: Sun, 27 Jun 2004 13:44:15 +0000
Subject: [PATCH] Added bskip() which skips the given number of bytes by
 reading. In the future, we can optimize it by seeking when possible.

---
 lib/fastbuf.c | 13 +++++++++++++
 lib/fastbuf.h |  1 +
 2 files changed, 14 insertions(+)

diff --git a/lib/fastbuf.c b/lib/fastbuf.c
index bf887a18..d2e08f86 100644
--- a/lib/fastbuf.c
+++ b/lib/fastbuf.c
@@ -342,3 +342,16 @@ brewind(struct fastbuf *f)
   bflush(f);
   bsetpos(f, 0);
 }
+
+void
+bskip(struct fastbuf *f, uns len)
+{
+  while (len)
+    {
+      byte *buf;
+      uns l = bdirect_read_prepare(f, &buf);
+      l = MIN(l, len);
+      bdirect_read_commit(f, buf+l);
+      len -= l;
+    }
+}
diff --git a/lib/fastbuf.h b/lib/fastbuf.h
index fbaab94a..9e974cf5 100644
--- a/lib/fastbuf.h
+++ b/lib/fastbuf.h
@@ -119,6 +119,7 @@ void bflush(struct fastbuf *f);
 void bseek(struct fastbuf *f, sh_off_t pos, int whence);
 void bsetpos(struct fastbuf *f, sh_off_t pos);
 void brewind(struct fastbuf *f);
+void bskip(struct fastbuf *f, uns len);
 
 static inline sh_off_t btell(struct fastbuf *f)
 {
-- 
2.39.2