--- php5.2-200809191430\ext\bz2\bz2_filter.c	2008-01-13 00:35:00.000000000 +0100
+++ php5.2-200809181030\ext\bz2\bz2_filter.c	2008-09-19 18:41:52.000000000 +0200
@@ -27,6 +27,13 @@
 
 /* {{{ data structure */
 
+enum strm_status {
+    Uninitialised,
+    Running,
+    Finished
+};
+    
+
 typedef struct _php_bz2_filter_data {
 	int persistent;
 	bz_stream strm;
@@ -34,6 +41,11 @@
 	size_t inbuf_len;
 	char *outbuf;
 	size_t outbuf_len;
+	
+	/* Decompress options */
+	enum strm_status status;
+	unsigned int small_footprint : 1;
+    int expect_concatenated : 1;          
 } php_bz2_filter_data;
 
 /* }}} */
@@ -65,7 +77,7 @@
 	php_bz2_filter_data *data;
 	php_stream_bucket *bucket;
 	size_t consumed = 0;
-	int status;
+	int bzlib_status;
 	php_stream_filter_status_t exit_status = PSFS_FEED_ME;
 	bz_stream *streamp;
 
@@ -82,6 +94,16 @@
 
 		bucket = php_stream_bucket_make_writeable(buckets_in->head TSRMLS_CC);
 		while (bin < bucket->buflen) {
+            if (data->status == Uninitialised) {                
+                bzlib_status = BZ2_bzDecompressInit(streamp, 0, data->small_footprint);
+
+                if (BZ_OK != bzlib_status)
+                    return PSFS_ERR_FATAL;
+
+                data->status = Running;
+            }
+                    
+            if (data->status == Running) {
 			desired = bucket->buflen - bin;
 			if (desired > data->inbuf_len) {
 				desired = data->inbuf_len;
@@ -89,9 +111,19 @@
 			memcpy(data->strm.next_in, bucket->buf + bin, desired);
 			data->strm.avail_in = desired;
 
-			status = BZ2_bzDecompress(&(data->strm));
-			if (status != BZ_OK && status != BZ_STREAM_END) {
+    			bzlib_status = BZ2_bzDecompress(&(data->strm));
+    			
+    			if (bzlib_status == BZ_STREAM_END) {
+                    BZ2_bzDecompressEnd(&(data->strm));
+                    if (data->expect_concatenated)
+                        data->status = Uninitialised;
+                    else
+                        data->status = Finished;
+                } else
+    			if (bzlib_status != BZ_OK) {
 				/* Something bad happened */
+    				php_error_docref(NULL TSRMLS_CC, E_WARNING, "Bzip decompress error %d.", bzlib_status);
+    
 				php_stream_bucket_delref(bucket TSRMLS_CC);
 				return PSFS_ERR_FATAL;
 			}
@@ -109,20 +141,25 @@
 				data->strm.avail_out = data->outbuf_len;
 				data->strm.next_out = data->outbuf;
 				exit_status = PSFS_PASS_ON;
-			} else if (status == BZ_STREAM_END && data->strm.avail_out >= data->outbuf_len) {
+    			} else if (bzlib_status == BZ_STREAM_END && data->strm.avail_out >= data->outbuf_len) {
 				/* no more data to decompress, and nothing was spat out */
 				php_stream_bucket_delref(bucket TSRMLS_CC);
 				return PSFS_PASS_ON;
 			}
+    		} else {
+                consumed += bucket->buflen;
+                break;
 		}
+		}
+
 		php_stream_bucket_delref(bucket TSRMLS_CC);
 	}
 
-	if (flags & PSFS_FLAG_FLUSH_CLOSE) {
+	if ((data->status == Running) && (flags & PSFS_FLAG_FLUSH_CLOSE)) {
 		/* Spit it out! */
-		status = BZ_OK;
-		while (status == BZ_OK) {
-			status = BZ2_bzDecompress(&(data->strm));
+		bzlib_status = BZ_OK;
+		while (bzlib_status == BZ_OK) {
+			bzlib_status = BZ2_bzDecompress(&(data->strm));
 			if (data->strm.avail_out < data->outbuf_len) {
 				size_t bucketlen = data->outbuf_len - data->strm.avail_out;
 
@@ -131,7 +168,7 @@
 				data->strm.avail_out = data->outbuf_len;
 				data->strm.next_out = data->outbuf;
 				exit_status = PSFS_PASS_ON;
-			} else if (status == BZ_OK) {
+			} else if (bzlib_status == BZ_OK) {
 				break;
 			}
 		}
@@ -148,7 +185,7 @@
 {
 	if (thisfilter && thisfilter->abstract) {
 		php_bz2_filter_data *data = thisfilter->abstract;
-		BZ2_bzDecompressEnd(&(data->strm));
+		if (data->status == Running) BZ2_bzDecompressEnd(&(data->strm));
 		pefree(data->inbuf, data->persistent);
 		pefree(data->outbuf, data->persistent);
 		pefree(data, data->persistent);
@@ -275,7 +312,7 @@
 {
 	php_stream_filter_ops *fops = NULL;
 	php_bz2_filter_data *data;
-	int status;
+	int status = BZ_OK;
 
 	/* Create this filter */
 	data = pecalloc(1, sizeof(php_bz2_filter_data), persistent);
@@ -307,12 +344,22 @@
 	}
 
 	if (strcasecmp(filtername, "bzip2.decompress") == 0) {
-		int smallFootprint = 0;
+		data->small_footprint = 0;
+		data->expect_concatenated = 0;
 
 		if (filterparams) {
 			zval **tmpzval = NULL;
 
 			if (Z_TYPE_P(filterparams) == IS_ARRAY || Z_TYPE_P(filterparams) == IS_OBJECT) {
+                
+                if (SUCCESS == zend_hash_find(HASH_OF(filterparams), "concatenated", sizeof("concatenated"), (void **) &tmpzval) ) {
+    				SEPARATE_ZVAL(tmpzval);
+    				convert_to_boolean_ex(tmpzval);
+    				data->expect_concatenated = Z_LVAL_PP(tmpzval);
+    				zval_ptr_dtor(tmpzval);
+    				tmpzval = NULL;
+                }
+                
 				zend_hash_find(HASH_OF(filterparams), "small", sizeof("small"), (void **) &tmpzval);
 			} else {
 				tmpzval = &filterparams;
@@ -321,12 +368,12 @@
 			if (tmpzval) {
 				SEPARATE_ZVAL(tmpzval);
 				convert_to_boolean_ex(tmpzval);
-				smallFootprint = Z_LVAL_PP(tmpzval);
+				data->small_footprint = Z_LVAL_PP(tmpzval);
 				zval_ptr_dtor(tmpzval);
 			}
 		}
 
-		status = BZ2_bzDecompressInit(&(data->strm), 0, smallFootprint);
+		data->status = Uninitialised;
 		fops = &php_bz2_decompress_ops;
 	} else if (strcasecmp(filtername, "bzip2.compress") == 0) {
 		int blockSize100k = PHP_BZ2_FILTER_DEFAULT_BLOCKSIZE;