1 files changed, 64 insertions, 0 deletions
diff --git a/X11/extensions/lbxzlib.h b/X11/extensions/lbxzlib.h
new file mode 100644
index 000000000..dc21837a1
--- /dev/null
+++ b/X11/extensions/lbxzlib.h
@@ -0,0 +1,64 @@
+/* $Xorg: lbxzlib.h,v 1.3 2000/08/18 04:05:45 coskrey Exp $ */
+/*
+ * Copyright 1993 Network Computing Devices
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of NCD. not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  NCD. makes no representations about the
+ * suitability of this software for any purpose.  It is provided "as is"
+ * without express or implied warranty.
+ *
+ * NCD. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL NCD.
+ * BE LIABLE FOR ANY SPECIAL, 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.
+ *
+ * Author:  Dale Tonogai, Network Computing Devices
+ */
+
+#ifndef _ZLIB_H_
+#define _ZLIB_H_
+
+#define ZLIB_STRCOMP_OPT	"XC-ZLIB"
+#define ZLIB_STRCOMP_OPT_LEN	7
+
+#define ZLIB_PACKET_HDRLEN	2
+#define ZLIB_MAX_DATALEN	0xfff
+#define ZLIB_MAX_PLAIN		270
+#define ZLIB_MAX_OUTLEN		(ZLIB_MAX_PLAIN << 1)
+
+#define ZLIB_COMPRESS_FLAG	0x80
+#define ZLIB_DATALEN_MASK	0x0f
+
+#define ZLIB_PUT_PKTHDR(p, len, compflag) \
+    { \
+	(p)[0] = ((unsigned)(len)) >> 8 | ((compflag) ? ZLIB_COMPRESS_FLAG : 0);\
+	(p)[1] = (len) & 0xff; \
+    }
+
+#define ZLIB_GET_DATALEN(p) \
+	((((unsigned)((p)[0] & ZLIB_DATALEN_MASK)) << 8) | (unsigned)(p)[1])
+
+#define ZLIB_COMPRESSED(p) ((p)[0] & ZLIB_COMPRESS_FLAG)
+
+struct ZlibInfo;
+
+extern void * ZlibInit ( int fd, int level );
+extern void ZlibFree ( struct ZlibInfo *comp );
+extern int ZlibFlush ( int fd );
+extern int ZlibStuffInput ( int fd, unsigned char *buffer, int buflen );
+extern void ZlibCompressOn ( int fd );
+extern void ZlibCompressOff ( int fd );
+extern int ZlibWrite ( int fd, unsigned char *buffer, int buflen );
+extern int ZlibWriteV ( int fd, struct iovec *iov, int iovcnt );
+extern int ZlibRead ( int fd, unsigned char *buffer, int buflen );
+extern int ZlibInputAvail ( int fd );
+
+
+#endif /* _ZLIB_H_ */