Merge pull request #474 from merlokk/df_fix

[proxmark3-svn] / zlib / inflate.c

diff --git a/zlib/inflate.c b/zlib/inflate.c
index 870f89bb4d3646684bf37e2144c4b83c808ab84d..df2f9d6602201272c19e50ed7e84bca149f743eb 100644 (file)
--- a/zlib/inflate.c
+++ b/zlib/inflate.c
@@ -80,6 +80,15 @@
  * The history for versions after 1.2.0 are in ChangeLog in zlib distribution.
  */
 
+//-----------------------------------------------------------------------------
+// This version of zlib is modified for use within the Proxmark3 project. 
+// Files from the original distribution which are not required for this
+// purpose are not included. All modifications can easily be found
+// by searching for #ifdef ZLIB_PM3_TUNED and #ifndef ZLIB_PM3_TUNED.
+//-----------------------------------------------------------------------------
+
+
+ 
 #include "zutil.h"
 #include "inftrees.h"
 #include "inflate.h"
@@ -92,7 +101,11 @@
 #endif
 
 /* function prototypes */
+#ifdef ZLIB_PM3_TUNED
+extern void Dbprintf(const char *fmt, ...);
+#else
 local void fixedtables OF((struct inflate_state FAR *state));
+#endif
 local int updatewindow OF((z_streamp strm, const unsigned char FAR *end,
                            unsigned copy));
 #ifdef BUILDFIXED
@@ -258,6 +271,7 @@ int value;
    used for threaded applications, since the rewriting of the tables and virgin
    may not be thread-safe.
  */
+#ifndef ZLIB_PM3_TUNED
 local void fixedtables(state)
 struct inflate_state FAR *state;
 {
@@ -361,7 +375,7 @@ void makefixed()
     puts("\n    };");
 }
 #endif /* MAKEFIXED */
-
+#endif /* ZLIB_PM3_TUNED */
 /*
    Update the window with the last wsize (normally 32K) bytes written before
    returning.  If window does not exist yet, create it.  This is only called
@@ -841,6 +855,10 @@ int flush;
                 state->mode = STORED;
                 break;
             case 1:                             /* fixed block */
+#ifdef ZLIB_PM3_TUNED
+                strm->msg = (char *)"fixed block coding not supported";
+                               state->mode = BAD;
+#else                          
                 fixedtables(state);
                 Tracev((stderr, "inflate:     fixed codes block%s\n",
                         state->last ? " (last)" : ""));
@@ -849,6 +867,7 @@ int flush;
                     DROPBITS(2);
                     goto inf_leave;
                 }
+#endif
                 break;
             case 2:                             /* dynamic block */
                 Tracev((stderr, "inflate:     dynamic codes block%s\n",
@@ -1504,7 +1523,7 @@ z_streamp strm;
 {
     struct inflate_state FAR *state;
 
-    if (strm == Z_NULL || strm->state == Z_NULL) return -1L << 16;
+    if (strm == Z_NULL || strm->state == Z_NULL) return ~0UL << 16;
     state = (struct inflate_state FAR *)strm->state;
     return ((long)(state->back) << 16) +
         (state->mode == COPY ? state->length :