--- gzip-1.3.9/unlzh.c.4337	2007-01-15 16:31:53.000000000 +0100

+++ gzip-1.3.9/unlzh.c	2007-01-15 16:38:08.000000000 +0100

@@ -146,8 +146,8 @@

     start[1] = 0;

     for (i = 1; i <= 16; i++)

         start[i + 1] = start[i] + (count[i] << (16 - i));

-    if ((start[17] & 0xffff) != 0)

-      gzip_error ("Bad table\n");

+   if ((start[17] & 0xffff) != 0 || tablebits > 16) /* 16 for weight below */

+      gzip_error ("Bad table (case b)\n"); 

     jutbits = 16 - tablebits;

     for (i = 1; i <= (unsigned)tablebits; i++) {

@@ -161,15 +162,15 @@

     i = start[tablebits + 1] >> jutbits;

     if (i != 0) {

-        k = 1 << tablebits;

-        while (i != k) table[i++] = 0;

+        k = MIN(1 << tablebits, DIST_BUFSIZE);

+        while (i < k) table[i++] = 0;

     }

     avail = nchar;

     mask = (unsigned) 1 << (15 - tablebits);

     for (ch = 0; ch < (unsigned)nchar; ch++) {

         if ((len = bitlen[ch]) == 0) continue;

-        nextcode = start[len] + weight[len];

+        nextcode = MIN(start[len] + weight[len], DIST_BUFSIZE);

         if (len <= (unsigned)tablebits) {

             if ((unsigned) 1 << tablebits < nextcode)

               gzip_error ("Bad table\n");

@@ -212,7 +213,7 @@

         for (i = 0; i < 256; i++) pt_table[i] = c;

     } else {

         i = 0;

-        while (i < n) {

+        while (i < MIN(n,NPT)) {

             c = bitbuf >> (BITBUFSIZ - 3);

             if (c == 7) {

                 mask = (unsigned) 1 << (BITBUFSIZ - 1 - 3);

@@ -224,7 +225,7 @@

             pt_len[i++] = c;

             if (i == i_special) {

                 c = getbits(2);

-                while (--c >= 0) pt_len[i++] = 0;

+                while (--c >= 0 && i < NPT) pt_len[i++] = 0; 

             }

         }

         while (i < nn) pt_len[i++] = 0;

@@ -244,7 +245,7 @@

         for (i = 0; i < 4096; i++) c_table[i] = c;

     } else {

         i = 0;

-        while (i < n) {

+        while (i < MIN(n,NC)) { 

             c = pt_table[bitbuf >> (BITBUFSIZ - 8)];

             if (c >= NT) {

                 mask = (unsigned) 1 << (BITBUFSIZ - 1 - 8);

@@ -259,7 +260,7 @@

                 if      (c == 0) c = 1;

                 else if (c == 1) c = getbits(4) + 3;

                 else             c = getbits(CBIT) + 20;

-                while (--c >= 0) c_len[i++] = 0;

+                while (--c >= 0 && i < NC) c_len[i++] = 0; 

             } else c_len[i++] = c - 2;

         }

         while (i < NC) c_len[i++] = 0;

@@ -352,7 +353,7 @@

     while (--j >= 0) {

         buffer[r] = buffer[i];

         i = (i + 1) & (DICSIZ - 1);

-        if (++r == count) return r;

+        if (++r >= count) return r;

     }

     for ( ; ; ) {

         c = decode_c();

@@ -362,14 +363,14 @@

         }

         if (c <= UCHAR_MAX) {

             buffer[r] = c;

-            if (++r == count) return r;

+            if (++r >= count) return r;

         } else {

             j = c - (UCHAR_MAX + 1 - THRESHOLD);

             i = (r - decode_p() - 1) & (DICSIZ - 1);

             while (--j >= 0) {

                 buffer[r] = buffer[i];

                 i = (i + 1) & (DICSIZ - 1);

-                if (++r == count) return r;

+                if (++r >= count) return r;

             }

         }

     }

--- gzip-1.3.9/gzip.h.4337	2007-01-15 16:31:53.000000000 +0100

+++ gzip-1.3.9/gzip.h	2007-01-15 16:38:52.000000000 +0100

@@ -224,6 +224,8 @@

 #define get_byte()  (inptr < insize ? inbuf[inptr++] : fill_inbuf(0))

 #define try_byte()  (inptr < insize ? inbuf[inptr++] : fill_inbuf(1))

+#define MIN(a,b) ((a) <= (b) ? (a) : (b)) 

+

 /* put_byte is used for the compressed output, put_ubyte for the

  * uncompressed output. However unlzw() uses window for its

  * suffix table instead of its output buffer, so it does not use put_ubyte

--- gzip-1.3.9/unpack.c.4337	2007-01-15 16:31:53.000000000 +0100

+++ gzip-1.3.9/unpack.c	2007-01-15 16:39:12.000000000 +0100

@@ -21,9 +21,6 @@

 #include "tailor.h"

 #include "gzip.h"

-#define MIN(a,b) ((a) <= (b) ? (a) : (b))

-/* The arguments must not have side effects. */

-

 #define MAX_BITLEN 25

 /* Maximum length of Huffman codes. (Minor modifications to the code

  * would be needed to support 32 bits codes, but pack never generates