summaryrefslogtreecommitdiff
path: root/lib/zlib/zutil.h
diff options
context:
space:
mode:
Diffstat (limited to 'lib/zlib/zutil.h')
-rw-r--r--lib/zlib/zutil.h121
1 files changed, 121 insertions, 0 deletions
diff --git a/lib/zlib/zutil.h b/lib/zlib/zutil.h
new file mode 100644
index 0000000..46522c8
--- /dev/null
+++ b/lib/zlib/zutil.h
@@ -0,0 +1,121 @@
+/* zutil.h -- internal interface and configuration of the compression library
+ * Copyright (C) 1995-2005 Jean-loup Gailly.
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/* WARNING: this file should *not* be used by applications. It is
+ part of the implementation of the compression library and is
+ subject to change. Applications should only use zlib.h.
+ */
+
+/* @(#) $Id$ */
+
+#ifndef ZUTIL_H
+#define ZUTIL_H
+
+#define ZLIB_INTERNAL
+#include "zlib.h"
+
+#ifdef STDC
+# ifndef _WIN32_WCE
+# include <stddef.h>
+# endif
+# include <string.h>
+# include <stdlib.h>
+#endif
+#ifdef NO_ERRNO_H
+# ifdef _WIN32_WCE
+ /* The Microsoft C Run-Time Library for Windows CE doesn't have
+ * errno. We define it as a global variable to simplify porting.
+ * Its value is always 0 and should not be used. We rename it to
+ * avoid conflict with other libraries that use the same workaround.
+ */
+# define errno z_errno
+# endif
+ extern int errno;
+#else
+# ifndef _WIN32_WCE
+# include <errno.h>
+# endif
+#endif
+
+#ifndef local
+# define local static
+#endif
+/* compile with -Dlocal if your debugger can't find static symbols */
+
+typedef unsigned char uch;
+typedef uch FAR uchf;
+typedef unsigned short ush;
+typedef ush FAR ushf;
+typedef unsigned long ulg;
+
+extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
+/* (size given to avoid silly warnings with Visual C++) */
+
+#define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)]
+
+#define ERR_RETURN(strm,err) \
+ return (strm->msg = (char*)ERR_MSG(err), (err))
+/* To be used only when the state is known to be valid */
+
+ /* common constants */
+
+#ifndef DEF_WBITS
+# define DEF_WBITS MAX_WBITS
+#endif
+/* default windowBits for decompression. MAX_WBITS is for compression only */
+
+#if MAX_MEM_LEVEL >= 8
+# define DEF_MEM_LEVEL 8
+#else
+# define DEF_MEM_LEVEL MAX_MEM_LEVEL
+#endif
+/* default memLevel */
+
+#define STORED_BLOCK 0
+#define STATIC_TREES 1
+#define DYN_TREES 2
+/* The three kinds of block type */
+
+#define MIN_MATCH 3
+#define MAX_MATCH 258
+/* The minimum and maximum match lengths */
+
+ /* functions */
+
+#include <linux/string.h>
+#define zmemcpy memcpy
+#define zmemcmp memcmp
+#define zmemzero(dest, len) memset(dest, 0, len)
+
+/* Diagnostic functions */
+#ifdef DEBUG
+# include <stdio.h>
+ extern int z_verbose;
+ extern void z_error OF((char *m));
+# define Assert(cond,msg) {if(!(cond)) z_error(msg);}
+# define Trace(x) {if (z_verbose>=0) fprintf x ;}
+# define Tracev(x) {if (z_verbose>0) fprintf x ;}
+# define Tracevv(x) {if (z_verbose>1) fprintf x ;}
+# define Tracec(c,x) {if (z_verbose>0 && (c)) fprintf x ;}
+# define Tracecv(c,x) {if (z_verbose>1 && (c)) fprintf x ;}
+#else
+# define Assert(cond,msg)
+# define Trace(x)
+# define Tracev(x)
+# define Tracevv(x)
+# define Tracec(c,x)
+# define Tracecv(c,x)
+#endif
+
+
+voidpf zcalloc OF((voidpf opaque, unsigned items, unsigned size));
+void zcfree OF((voidpf opaque, voidpf ptr, unsigned size));
+
+#define ZALLOC(strm, items, size) \
+ (*((strm)->zalloc))((strm)->opaque, (items), (size))
+#define ZFREE(strm, addr) (*((strm)->zfree))((strm)->opaque, (voidpf)(addr), 0)
+#define TRY_FREE(s, p) {if (p) ZFREE(s, p);}
+
+#endif /* ZUTIL_H */