added zip from Info-ZIP

third_party/infozip/zip/unix/zipup.h

@@ -0,0 +1,24 @@
+/*
+  unix/zipup.h - Zip 3
+
+  Copyright (c) 1990-2005 Info-ZIP.  All rights reserved.
+
+  See the accompanying file LICENSE, version 2005-Feb-10 or later
+  (the contents of which are also included in zip.h) for terms of use.
+  If, for some reason, both of these files are missing, the Info-ZIP license
+  also may be found at:  ftp://ftp.info-zip.org/pub/infozip/license.html
+*/
+#ifndef O_RDONLY
+#  define O_RDONLY 0
+#endif
+#ifndef O_BINARY
+#  define O_BINARY 0
+#endif
+#define fhow (O_RDONLY|O_BINARY)
+#define fbad (-1)
+typedef int ftype;
+#define zopen(n,p) open(n,p)
+#define zread(f,b,n) read(f,b,n)
+#define zclose(f) close(f)
+#define zerr(f) (k == (extent)(-1L))
+#define zstdin 0