Free a buffer from within a memory block.
Copyright (C) 1992 Ian Lance Taylor
This file is part of the Taylor UUCP uuconf library.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License
as published by the Free Software Foundation; either version 2 of
the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
The author of the program may be contacted at ian@airs.com or
c/o Infinity Development Systems, P.O. Box 520, Waltham, MA 02254.
const char _uuconf_free_rcsid
[] = "$Id: free.c,v 1.1 1993/08/04 19:34:10 jtc Exp $";
/* Free memory allocated by uuconf_malloc. If the memory block is
NULL, this just calls free; this is convenient for a number of
routines. Otherwise, this will only do something if this was the
last buffer allocated for one of the memory blocks in the list; in
other cases, the memory is lost until the entire memory block is
uuconf_free (pblock
, pbuf
)
struct sblock
*q
= (struct sblock
*) pblock
;
for (; q
!= NULL
; q
= q
->qnext
)
q
->ifree
= (char *) pbuf
- q
->u
.ab
;
/* We could reset q->plast here, but it doesn't matter. */