xref: /onnv-gate/usr/src/lib/libslp/clib/SLPGetRefreshInterval.c (revision 0:68f95e015346)
1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate  * CDDL HEADER START
3*0Sstevel@tonic-gate  *
4*0Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*0Sstevel@tonic-gate  * with the License.
8*0Sstevel@tonic-gate  *
9*0Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate  * and limitations under the License.
13*0Sstevel@tonic-gate  *
14*0Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate  *
20*0Sstevel@tonic-gate  * CDDL HEADER END
21*0Sstevel@tonic-gate  */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate  * Copyright (c) 1999 by Sun Microsystems, Inc.
24*0Sstevel@tonic-gate  * All rights reserved.
25*0Sstevel@tonic-gate  */
26*0Sstevel@tonic-gate 
27*0Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
28*0Sstevel@tonic-gate 
29*0Sstevel@tonic-gate /*
30*0Sstevel@tonic-gate  * Implements SLPGetRefreshInterval. This call is an AttrRqst with
31*0Sstevel@tonic-gate  * the special service type service:directory-agent.sun, sent
32*0Sstevel@tonic-gate  * only to slpd via loopback, so it mimics the course of a normal
33*0Sstevel@tonic-gate  * SLPFindAttrs call but reroutes the message to slpd.
34*0Sstevel@tonic-gate  */
35*0Sstevel@tonic-gate 
36*0Sstevel@tonic-gate #include <stdlib.h>
37*0Sstevel@tonic-gate #include <unistd.h>
38*0Sstevel@tonic-gate #include <syslog.h>
39*0Sstevel@tonic-gate #include <netdb.h>
40*0Sstevel@tonic-gate #include <slp-internal.h>
41*0Sstevel@tonic-gate 
42*0Sstevel@tonic-gate static SLPBoolean refresh_interval_cb(SLPHandle, const char *,
43*0Sstevel@tonic-gate 					SLPError, void *);
44*0Sstevel@tonic-gate 
SLPGetRefreshInterval()45*0Sstevel@tonic-gate unsigned short SLPGetRefreshInterval() {
46*0Sstevel@tonic-gate 	slp_handle_impl_t *hp;	/* SLP handle for this request */
47*0Sstevel@tonic-gate 	SLPError err;		/* any SLPError */
48*0Sstevel@tonic-gate 	char *reply = NULL;	/* reply from slpd */
49*0Sstevel@tonic-gate 	void *collator = NULL;	/* attr collation handle */
50*0Sstevel@tonic-gate 	int mr = 0;		/* max results placeholder */
51*0Sstevel@tonic-gate 	unsigned short max = 0;	/* max interval result cookie */
52*0Sstevel@tonic-gate 	char *msg = NULL;	/* attrrqst msg */
53*0Sstevel@tonic-gate 	char hostname[MAXHOSTNAMELEN];	/* name of this host */
54*0Sstevel@tonic-gate 
55*0Sstevel@tonic-gate 	if ((err = SLPOpen("en", SLP_FALSE, (void **)&hp)) != SLP_OK) {
56*0Sstevel@tonic-gate 	    slp_err(LOG_INFO, 0, "SLPGetRefreshInterval",
57*0Sstevel@tonic-gate 		    "Could not get SLPHandle: %s", slp_strerror(err));
58*0Sstevel@tonic-gate 	    return (0);
59*0Sstevel@tonic-gate 	}
60*0Sstevel@tonic-gate 
61*0Sstevel@tonic-gate 	/* tag this as an internal call */
62*0Sstevel@tonic-gate 	hp->internal_call = SLP_TRUE;
63*0Sstevel@tonic-gate 
64*0Sstevel@tonic-gate 	/* scope is name of this host */
65*0Sstevel@tonic-gate 	(void) gethostname(hostname, MAXHOSTNAMELEN);
66*0Sstevel@tonic-gate 
67*0Sstevel@tonic-gate 	if (slp_packAttrRqst_single(SLP_SUN_DA_TYPE,
68*0Sstevel@tonic-gate 				    hostname,
69*0Sstevel@tonic-gate 				    "min-refresh-interval",
70*0Sstevel@tonic-gate 				    &msg, "en") != SLP_OK) {
71*0Sstevel@tonic-gate 	    goto done;
72*0Sstevel@tonic-gate 	}
73*0Sstevel@tonic-gate 
74*0Sstevel@tonic-gate 	if (slp_send2slpd(msg, &reply) != SLP_OK) {
75*0Sstevel@tonic-gate 	    goto done;
76*0Sstevel@tonic-gate 	}
77*0Sstevel@tonic-gate 
78*0Sstevel@tonic-gate 	(void) slp_UnpackAttrReply(hp, reply, refresh_interval_cb,
79*0Sstevel@tonic-gate 				    &max, &collator, &mr);
80*0Sstevel@tonic-gate 
81*0Sstevel@tonic-gate 	/* clean up by invoking last call */
82*0Sstevel@tonic-gate 	(void) slp_UnpackAttrReply(hp, NULL, refresh_interval_cb,
83*0Sstevel@tonic-gate 				    &max, &collator, &mr);
84*0Sstevel@tonic-gate 
85*0Sstevel@tonic-gate done:
86*0Sstevel@tonic-gate 	if (msg) free(msg);
87*0Sstevel@tonic-gate 	if (reply) free(reply);
88*0Sstevel@tonic-gate 
89*0Sstevel@tonic-gate 	SLPClose(hp);
90*0Sstevel@tonic-gate 
91*0Sstevel@tonic-gate 	return (max);
92*0Sstevel@tonic-gate }
93*0Sstevel@tonic-gate 
94*0Sstevel@tonic-gate /*ARGSUSED*/
refresh_interval_cb(SLPHandle h,const char * attrs,SLPError err,void * cookie)95*0Sstevel@tonic-gate static SLPBoolean refresh_interval_cb(SLPHandle h, const char *attrs,
96*0Sstevel@tonic-gate 					SLPError err, void *cookie) {
97*0Sstevel@tonic-gate 	char *p, *next;
98*0Sstevel@tonic-gate 	unsigned short *max = (unsigned short *)cookie;
99*0Sstevel@tonic-gate 
100*0Sstevel@tonic-gate 	if (err != SLP_OK) {
101*0Sstevel@tonic-gate 	    return (SLP_TRUE);
102*0Sstevel@tonic-gate 	}
103*0Sstevel@tonic-gate 
104*0Sstevel@tonic-gate 	p = strchr(attrs, '=');
105*0Sstevel@tonic-gate 	if (!p) {
106*0Sstevel@tonic-gate 	    *max = 0;
107*0Sstevel@tonic-gate 	}
108*0Sstevel@tonic-gate 
109*0Sstevel@tonic-gate 	/* walk through all intervals, looking for the greatest */
110*0Sstevel@tonic-gate 	for (p++; p; p = next) {
111*0Sstevel@tonic-gate 	    unsigned short anint;
112*0Sstevel@tonic-gate 
113*0Sstevel@tonic-gate 	    next = strchr(p, ',');
114*0Sstevel@tonic-gate 	    if (next) {
115*0Sstevel@tonic-gate 		*next++ = 0;
116*0Sstevel@tonic-gate 	    }
117*0Sstevel@tonic-gate 
118*0Sstevel@tonic-gate 	    anint = (unsigned short)atoi(p);
119*0Sstevel@tonic-gate 	    if (anint > *max) {
120*0Sstevel@tonic-gate 		*max = anint;
121*0Sstevel@tonic-gate 	    }
122*0Sstevel@tonic-gate 	}
123*0Sstevel@tonic-gate 
124*0Sstevel@tonic-gate 	return (SLP_TRUE);
125*0Sstevel@tonic-gate }
126