Add libsbuf, based on the latest sbuf code from FreeBSD-CURRENT.

git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@45 d4fa192b-c00b-0410-8231-f00ffab90ce4

configure.ac

@@ -65,6 +65,7 @@ AC_CONFIG_FILES([
     Makefile
     include/Makefile
     lib/Makefile
+    lib/libsbuf/Makefile
     lib/libvarnish/Makefile
     lib/libvarnishapi/Makefile
     bin/Makefile

include/sbuf.h

+/*-
+ * Copyright (c) 2000 Poul-Henning Kamp and Dag-Erling Coïdan Smørgrav
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer
+ *    in this position and unchanged.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * $Id$
+ * $FreeBSD: src/sys/sys/sbuf.h,v 1.14 2004/07/09 11:35:30 des Exp $
+ */
+
+#ifndef SBUF_H_INCLUDED
+#define SBUF_H_INCLUDED
+
+/*
+ * Structure definition
+ */
+struct sbuf {
+	char		*s_buf;		/* storage buffer */
+	void		*s_unused;	/* binary compatibility. */
+	int		 s_size;	/* size of storage buffer */
+	int		 s_len;		/* current length of string */
+#define	SBUF_FIXEDLEN	0x00000000	/* fixed length buffer (default) */
+#define	SBUF_AUTOEXTEND	0x00000001	/* automatically extend buffer */
+#define	SBUF_USRFLAGMSK 0x0000ffff	/* mask of flags the user may specify */
+#define	SBUF_DYNAMIC	0x00010000	/* s_buf must be freed */
+#define	SBUF_FINISHED	0x00020000	/* set by sbuf_finish() */
+#define	SBUF_OVERFLOWED	0x00040000	/* sbuf overflowed */
+#define	SBUF_DYNSTRUCT	0x00080000	/* sbuf must be freed */
+	int		 s_flags;	/* flags */
+};
+
+__BEGIN_DECLS
+/*
+ * API functions
+ */
+struct sbuf	*sbuf_new(struct sbuf *, char *, int, int);
+void		 sbuf_clear(struct sbuf *);
+int		 sbuf_setpos(struct sbuf *, int);
+int		 sbuf_bcat(struct sbuf *, const void *, size_t);
+int		 sbuf_bcpy(struct sbuf *, const void *, size_t);
+int		 sbuf_cat(struct sbuf *, const char *);
+int		 sbuf_cpy(struct sbuf *, const char *);
+int		 sbuf_printf(struct sbuf *, const char *, ...) /* __printflike(2, 3) */;
+#ifdef va_start
+int		 sbuf_vprintf(struct sbuf *, const char *, va_list) /* __printflike(2, 0) */;
+#endif
+int		 sbuf_putc(struct sbuf *, int);
+int		 sbuf_trim(struct sbuf *);
+int		 sbuf_overflowed(struct sbuf *);
+void		 sbuf_finish(struct sbuf *);
+char		*sbuf_data(struct sbuf *);
+int		 sbuf_len(struct sbuf *);
+int		 sbuf_done(struct sbuf *);
+void		 sbuf_delete(struct sbuf *);
+__END_DECLS
+
+#endif

lib/Makefile.am

 # $Id$
 
 SUBDIRS = \
+	libsbuf \
 	libvarnish \
 	libvarnishapi \
 	libvcl

lib/libsbuf/Makefile.am

+# $Id$
+
+INCLUDES = -I$(top_srcdir)/include
+
+lib_LTLIBRARIES = libsbuf.la
+
+libsbuf_la_SOURCES = \
+	sbuf.c