- buffer pointer was not increased

diff --git a/Source/charon/transforms/prf_plus.c b/Source/charon/transforms/prf_plus.c
index 5b3e7df..54d1815 100644 (file)
--- a/Source/charon/transforms/prf_plus.c
+++ b/Source/charon/transforms/prf_plus.c
@@ -72,6 +72,7 @@ static status_t get_bytes(private_prf_plus_t *this, size_t length, u_int8_t *buf
 {      
        chunk_t appending_chunk;
        size_t bytes_in_round;
+       size_t total_bytes_written = 0;
        
        appending_chunk.ptr = &(this->appending_octet);
        appending_chunk.len = 1;
@@ -89,10 +90,11 @@ static status_t get_bytes(private_prf_plus_t *this, size_t length, u_int8_t *buf
                /* how many bytes can we write in this round ? */
                bytes_in_round = min(length, this->buffer.len - this->given_out);
                /* copy bytes from buffer with offset */
-               memcpy(buffer, this->buffer.ptr + this->given_out, bytes_in_round);
+               memcpy(buffer + total_bytes_written, this->buffer.ptr + this->given_out, bytes_in_round);
                
                length -= bytes_in_round;
                this->given_out += bytes_in_round;
+               total_bytes_written += bytes_in_round;
        }
        return SUCCESS;
 }