1 files changed, 22 insertions, 20 deletions

diff --git a/zutil.c b/zutil.c
index f7bd6e5..97e74ea 100644
--- a/zutil.c
+++ b/zutil.c
@@ -1,5 +1,5 @@
 /* zutil.c -- target dependent utility functions for the compression library
- * Copyright (C) 1995-1996 Jean-loup Gailly.
+ * Copyright (C) 1995 Jean-loup Gailly.
  * For conditions of distribution and use, see copyright notice in zlib.h 
  */
 
@@ -15,18 +15,16 @@ struct internal_state      {int dummy;}; /* for buggy compilers */
 extern void exit OF((int));
 #endif
 
-const char *zlib_version = ZLIB_VERSION;
-
-const char *z_errmsg[10] = {
-"need dictionary",     /* Z_NEED_DICT       2  */
-"stream end",          /* Z_STREAM_END      1  */
-"",                    /* Z_OK              0  */
-"file error",          /* Z_ERRNO         (-1) */
-"stream error",        /* Z_STREAM_ERROR  (-2) */
-"data error",          /* Z_DATA_ERROR    (-3) */
-"insufficient memory", /* Z_MEM_ERROR     (-4) */
-"buffer error",        /* Z_BUF_ERROR     (-5) */
-"incompatible version",/* Z_VERSION_ERROR (-6) */
+char *zlib_version = ZLIB_VERSION;
+
+char *z_errmsg[] = {
+"stream end",          /* Z_STREAM_END    1 */
+"",                    /* Z_OK            0 */
+"file error",          /* Z_ERRNO        (-1) */
+"stream error",        /* Z_STREAM_ERROR (-2) */
+"data error",          /* Z_DATA_ERROR   (-3) */
+"insufficient memory", /* Z_MEM_ERROR    (-4) */
+"buffer error",        /* Z_BUF_ERROR    (-5) */
 ""};
 
 
@@ -62,9 +60,9 @@ void zmemzero(dest, len)
 #endif
 
 #ifdef __TURBOC__
-#if (defined( __BORLANDC__) || !defined(SMALL_MEDIUM)) && !defined(__32BIT__)
-/* Small and medium model in Turbo C are for now limited to near allocation
- * with reduced MAX_WBITS and MAX_MEM_LEVEL
+#if !defined(__SMALL__) && !defined(__MEDIUM__) && !defined(__32BIT__)
+/* Small and medium model are for now limited to near allocation with
+ * reduced MAX_WBITS and MAX_MEM_LEVEL
  */
 #  define MY_ZCALLOC
 
@@ -102,6 +100,9 @@ voidpf zcalloc (voidpf opaque, unsigned items, unsigned size)
      */
     if (bsize < 65520L) {
         buf = farmalloc(bsize);
+#ifdef DEBUG
+        zmemzero(buf, (uInt)bsize);
+#endif
         if (*(ush*)&buf != 0) return buf;
     } else {
         buf = farmalloc(bsize + 16L);
@@ -113,6 +114,10 @@ voidpf zcalloc (voidpf opaque, unsigned items, unsigned size)
     *((ush*)&buf+1) += ((ush)((uch*)buf-0) + 15) >> 4;
     *(ush*)&buf = 0;
     table[next_ptr++].new_ptr = buf;
+#ifdef DEBUG
+    zmemzero(buf, (uInt)65535);
+    ((uch*)buf)[65535] = 0;
+#endif
     return buf;
 }
 
@@ -141,8 +146,7 @@ void  zcfree (voidpf opaque, voidpf ptr)
 #endif /* __TURBOC__ */
 
 
-#if defined(M_I86) && !(defined(__WATCOMC__) && defined(__386__))
-/* Microsoft C */
+#ifdef M_I86 /* Microsoft C */
 
 #  define MY_ZCALLOC
 
@@ -178,7 +182,6 @@ voidpf zcalloc (opaque, items, size)
     unsigned items;
     unsigned size;
 {
-    if (opaque) opaque = 0; /* to make compiler happy */
     return (voidpf)calloc(items, size);
 }
 
@@ -186,7 +189,6 @@ void  zcfree (opaque, ptr)
     voidpf opaque;
     voidpf ptr;
 {
-    if (opaque) opaque = 0; /* to make compiler happy */
     free(ptr);
 }