usr/src/lib/libnsl/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 #pragma ident   "%Z%%M% %I%     %E% SMI"        /* SVr4.0 1.2 */
  32
  33 #include "mt.h"
  34 #include <xti.h>
  35 #include <errno.h>
  36 #include <stropts.h>
  37 #include <stdlib.h>
  38 #include <sys/types.h>
  39 #include "tx.h"
  40
  41 int
  42 _tx_free(char *ptr, int struct_type, int api_semantics)
  43 {
  44         union structptrs {
  45                 struct t_bind *bind;
  46                 struct t_call *call;
  47                 struct t_discon *dis;
  48                 struct t_optmgmt *opt;
  49                 struct t_unitdata *udata;
  50                 struct t_uderr *uderr;
  51         } p;
  52
  53         /*
  54          * Free all the buffers associated with the appropriate
  55          * fields of each structure.
  56          */
  57
  58         switch (struct_type) {
  59
  60         case T_BIND:
  61                 /* LINTED pointer cast */
  62                 p.bind = (struct t_bind *)ptr;
  63                 if (p.bind->addr.buf != NULL)
  64                         free(p.bind->addr.buf);
  65                 break;
  66
  67         case T_CALL:
  68                 /* LINTED pointer cast */
  69                 p.call = (struct t_call *)ptr;
  70                 if (p.call->addr.buf != NULL)
  71                         free(p.call->addr.buf);
  72                 if (p.call->opt.buf != NULL)
  73                         free(p.call->opt.buf);
  74                 if (p.call->udata.buf != NULL)
  75                         free(p.call->udata.buf);
  76                 break;
  77
  78         case T_OPTMGMT:
  79                 /* LINTED pointer cast */
  80                 p.opt = (struct t_optmgmt *)ptr;
  81                 if (p.opt->opt.buf != NULL)
  82                         free(p.opt->opt.buf);
  83                 break;
  84
  85         case T_DIS:
  86                 /* LINTED pointer cast */
  87                 p.dis = (struct t_discon *)ptr;
  88                 if (p.dis->udata.buf != NULL)
  89                         free(p.dis->udata.buf);
  90                 break;
  91
  92         case T_UNITDATA:
  93                 /* LINTED pointer cast */
  94                 p.udata = (struct t_unitdata *)ptr;
  95                 if (p.udata->addr.buf != NULL)
  96                         free(p.udata->addr.buf);
  97                 if (p.udata->opt.buf != NULL)
  98                         free(p.udata->opt.buf);
  99                 if (p.udata->udata.buf != NULL)
 100                         free(p.udata->udata.buf);
 101                 break;
 102
 103         case T_UDERROR:
 104                 /* LINTED pointer cast */
 105                 p.uderr = (struct t_uderr *)ptr;
 106                 if (p.uderr->addr.buf != NULL)
 107                         free(p.uderr->addr.buf);
 108                 if (p.uderr->opt.buf != NULL)
 109                         free(p.uderr->opt.buf);
 110                 break;
 111
 112         case T_INFO:
 113                 break;
 114
 115         default:
 116                 if (_T_IS_XTI(api_semantics)) {
 117                         t_errno = TNOSTRUCTYPE;
 118                 } else {        /* TX_TLI_API */
 119                         t_errno = TSYSERR;
 120                         errno = EINVAL;
 121                 }
 122                 return (-1);
 123         }
 124
 125         free(ptr);
 126         return (0);
 127 }