usr/src/lib/libc/port/nsl/t_free.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22
  23 /*      Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
  24 /*        All Rights Reserved   */
  25
  26 /*
  27  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
  28  * Use is subject to license terms.
  29  */
  30
  31 #include "mt.h"
  32 #include <xti.h>
  33 #include <errno.h>
  34 #include <stropts.h>
  35 #include <stdlib.h>
  36 #include <sys/types.h>
  37 #include "tx.h"
  38
  39 int
  40 _tx_free(char *ptr, int struct_type, int api_semantics)
  41 {
  42         union structptrs {
  43                 struct t_bind *bind;
  44                 struct t_call *call;
  45                 struct t_discon *dis;
  46                 struct t_optmgmt *opt;
  47                 struct t_unitdata *udata;
  48                 struct t_uderr *uderr;
  49         } p;
  50
  51         /*
  52          * Free all the buffers associated with the appropriate
  53          * fields of each structure.
  54          */
  55
  56         switch (struct_type) {
  57
  58         case T_BIND:
  59                 /* LINTED pointer cast */
  60                 p.bind = (struct t_bind *)ptr;
  61                 free(p.bind->addr.buf);
  62                 break;
  63
  64         case T_CALL:
  65                 /* LINTED pointer cast */
  66                 p.call = (struct t_call *)ptr;
  67                 free(p.call->addr.buf);
  68                 free(p.call->opt.buf);
  69                 free(p.call->udata.buf);
  70                 break;
  71
  72         case T_OPTMGMT:
  73                 /* LINTED pointer cast */
  74                 p.opt = (struct t_optmgmt *)ptr;
  75                 free(p.opt->opt.buf);
  76                 break;
  77
  78         case T_DIS:
  79                 /* LINTED pointer cast */
  80                 p.dis = (struct t_discon *)ptr;
  81                 free(p.dis->udata.buf);
  82                 break;
  83
  84         case T_UNITDATA:
  85                 /* LINTED pointer cast */
  86                 p.udata = (struct t_unitdata *)ptr;
  87                 free(p.udata->addr.buf);
  88                 free(p.udata->opt.buf);
  89                 free(p.udata->udata.buf);
  90                 break;
  91
  92         case T_UDERROR:
  93                 /* LINTED pointer cast */
  94                 p.uderr = (struct t_uderr *)ptr;
  95                 free(p.uderr->addr.buf);
  96                 free(p.uderr->opt.buf);
  97                 break;
  98
  99         case T_INFO:
 100                 break;
 101
 102         default:
 103                 if (_T_IS_XTI(api_semantics)) {
 104                         t_errno = TNOSTRUCTYPE;
 105                 } else {        /* TX_TLI_API */
 106                         t_errno = TSYSERR;
 107                         errno = EINVAL;
 108                 }
 109                 return (-1);
 110         }
 111
 112         free(ptr);
 113         return (0);
 114 }