usr/src/lib/libslp/clib/DAAdvert.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) 1999 by Sun Microsystems, Inc.
  24  * All rights reserved.
  25  */
  26
  27 #pragma ident   "%Z%%M% %I%     %E% SMI"
  28
  29 /*
  30  * DAAdvert functionality. For all normal UA calls, libslp queries
  31  * slpd for available DAs. This file contains functionality to handle
  32  * DAAdverts explicitly requested by a call to SLPFindSrvs()
  33  * or SLPFindAttrs() with service-type = "service:directory-agent".
  34  */
  35
  36 #include <stdio.h>
  37 #include <slp-internal.h>
  38
  39 SLPError slp_unpackDAAdvert(char *reply, char **surl, char **scopes,
  40                                 char **attrs, char **spis, SLPError *errCode) {
  41         unsigned short protoErrCode, dummy;
  42         size_t len, off;
  43         SLPError err = SLP_OK;
  44         /* authentication components */
  45         struct iovec iov[5];
  46         size_t tmp_off;
  47         int auth_cnt;
  48         size_t abLen = 0;
  49
  50         *surl = *scopes = *attrs = *spis = NULL;
  51
  52         len = slp_get_length(reply);
  53         off = SLP_HDRLEN + slp_get_langlen(reply);
  54         /* err code */
  55         if ((err = slp_get_sht(reply, len, &off, &protoErrCode)) != SLP_OK)
  56                 goto fail;
  57         /* internal errors should have been filtered out by the net code */
  58         *errCode = slp_map_err(protoErrCode);
  59         if (*errCode != SLP_OK) {
  60                 return (SLP_OK);
  61         }
  62
  63         /* skip timestamp (4 bytes) */
  64         iov[0].iov_base = reply + off;
  65         tmp_off = off;
  66         if ((err = slp_get_sht(reply, len, &off, &dummy)) != SLP_OK) {
  67                 goto fail;
  68         }
  69         if ((err = slp_get_sht(reply, len, &off, &dummy)) != SLP_OK) {
  70                 goto fail;
  71         }
  72         iov[0].iov_len = off - tmp_off;
  73
  74         /* service URL */
  75         iov[1].iov_base = reply + off;
  76         tmp_off = off;
  77         if ((err = slp_get_string(reply, len, &off, surl)) != SLP_OK) {
  78                 goto fail;
  79         }
  80         iov[1].iov_len = off - tmp_off;
  81
  82         /* scopes */
  83         iov[3].iov_base = reply + off;
  84         tmp_off = off;
  85         if ((err = slp_get_string(reply, len, &off, scopes)) != SLP_OK) {
  86                 goto fail;
  87         }
  88         iov[3].iov_len = off - tmp_off;
  89
  90         /* attributes */
  91         iov[2].iov_base = reply + off;
  92         tmp_off = off;
  93         if ((err = slp_get_string(reply, len, &off, attrs)) != SLP_OK) {
  94                 goto fail;
  95         }
  96         iov[2].iov_len = off - tmp_off;
  97
  98         /* SPIs */
  99         iov[4].iov_base = reply + off;
 100         tmp_off = off;
 101         if ((err = slp_get_string(reply, len, &off, spis)) != SLP_OK) {
 102                 goto fail;
 103         }
 104         iov[4].iov_len = off - tmp_off;
 105
 106         /* auth blocks */
 107         if ((err = slp_get_byte(reply, len, &off, &auth_cnt)) != SLP_OK) {
 108             goto fail;
 109         }
 110         if (slp_get_security_on() || auth_cnt > 0) {
 111             if ((err = slp_verify(iov, 5,
 112                                     reply + off,
 113                                     len - off,
 114                                     auth_cnt,
 115                                     &abLen)) != SLP_OK) {
 116                 goto fail;
 117             }
 118         }
 119
 120         return (SLP_OK);
 121
 122 fail:
 123         if (*surl) free (*surl);
 124         if (*scopes) free (*scopes);
 125         if (*attrs) free (*attrs);
 126         if (*spis) free (*spis);
 127
 128         return (err);
 129 }