diff -r 0ef0df7aa2c2 -r 55bf819cbc88 ucx/buffer.c
--- a/ucx/buffer.c	Mon Feb 25 12:18:31 2013 +0100
+++ b/ucx/buffer.c	Mon Feb 25 13:25:07 2013 +0100
@@ -202,3 +202,31 @@
     free(buf);
     return ncp;
 }
+
+size_t ucx_buffer_generic_ncopy(void *s1, void *s2,
+        read_func readfnc, write_func writefnc, size_t bufsize, size_t n) {
+    if(n == 0) {
+        return 0;
+    }
+    
+    size_t ncp = 0;
+    char *buf = (char*)malloc(bufsize);
+    if(buf == NULL) {
+        return 0;
+    }
+    
+    size_t r;
+    size_t rn = bufsize > n ? n : bufsize;
+    while((r = readfnc(buf, 1, rn, s1)) != 0) {
+        r = writefnc(buf, 1, r, s2);
+        ncp += r;
+        n -= r;
+        rn = bufsize > n ? n : bufsize;
+        if(r == 0 || n == 0) {
+            break;
+        }
+    }
+    
+    free(buf);
+    return ncp;
+}