--- Zlib.xs	Sat Apr 28 14:18:55 2001
+++ /home/tobez/Zlib.xs	Fri Aug 24 15:24:34 2001
@@ -639,7 +639,7 @@
             croak("cannot use buf argument as lvalue");
         SvPOK_only(buf);
 	/* sv_setpvn(buf, "", SIZE) ; */
-        SvGROW(buf, SIZE) ;
+        SvGROW(buf, SIZE + 1) ;
         SvCUR_set(buf, 0);
 	RETVAL = gzreadline(file, buf) ;
 	SetGzError(file->gz) ; 
@@ -852,7 +852,7 @@
     while (s->stream.avail_in != 0) {
 
         if (s->stream.avail_out == 0) {
-            SvGROW(output, outsize + s->bufsize) ;
+            SvGROW(output, outsize + s->bufsize + 1) ;
             s->stream.next_out = (Bytef*) SvPVX(output) + outsize ;
             outsize += s->bufsize ;
             s->stream.avail_out = s->bufsize ;
@@ -905,7 +905,7 @@
     for (;;) {
         if (s->stream.avail_out == 0) {
 	    /* consumed all the available output, so extend it */
-	    SvGROW(output, outsize + s->bufsize) ;
+	    SvGROW(output, outsize + s->bufsize + 1) ;
             s->stream.next_out = (Bytef*)SvPVX(output) + outsize ;
 	    outsize += s->bufsize ;
             s->stream.avail_out = s->bufsize ;
@@ -981,7 +981,7 @@
     while (1) {
 
         if (s->stream.avail_out == 0) {
-            SvGROW(output, outsize + s->bufsize) ;
+            SvGROW(output, outsize + s->bufsize + 1) ;
             s->stream.next_out = (Bytef*) SvPVX(output) + outsize ;
             outsize += s->bufsize ;
             s->stream.avail_out = s->bufsize ;