xdr_restrict_buflen — decrease available buffer space
int xdr_restrict_buflen ( | struct xdr_stream * xdr, |
int newbuflen); |
Adjust our idea of how much space is available in the buffer. If we've already used too much space in the buffer, returns -1. If the available space is already smaller than newbuflen, returns 0 and does nothing. Otherwise, adjusts xdr->buf->buflen to newbuflen and ensures xdr->end is set at most offset newbuflen from the start of the buffer.