--- gzip-1.3.3/unlzh.c.4338	2006-09-07 10:49:31.000000000 +0200
+++ gzip-1.3.3/unlzh.c	2006-09-07 11:37:53.000000000 +0200
@@ -260,7 +260,7 @@
 		    if (bitbuf & mask) c = right[c];
 		    else               c = left [c];
 		    mask >>= 1;
-		} while (c >= NT);
+		} while (c >= NT && (mask || c != left[c]));
 	    }
 	    fillbuf((int) pt_len[c]);
 	    if (c <= 2) {
@@ -296,7 +296,7 @@
 	    if (bitbuf & mask) j = right[j];
 	    else               j = left [j];
 	    mask >>= 1;
-	} while (j >= NC);
+	} while (j >= NC && (mask || j != left[j])); 
     }
     fillbuf((int) c_len[j]);
     return j;
@@ -313,7 +313,7 @@
 	    if (bitbuf & mask) j = right[j];
 	    else               j = left [j];
 	    mask >>= 1;
-	} while (j >= NP);
+	} while (j >= NP && (mask || j != left[j]));
     }
     fillbuf((int) pt_len[j]);
     if (j != 0) j = ((unsigned) 1 << (j - 1)) + getbits((int) (j - 1));