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/*
* Copyright 2005 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/* from kerbd_handle.c 1.3 92/01/29 SMI */
/*
* kwarnd_handle.c, Interface to kwarnd
*
*/
#include <unistd.h>
#include <rpc/rpc.h>
#include <rpc/clnt.h>
#include <stdio.h>
#include <string.h>
#include <netconfig.h>
#include <sys/utsname.h>
#include "kwarnd.h"
#ifdef DEBUG
#define dprt(msg)
#else
#define dprt(msg)
#endif /* DEBUG */
/*
* Keep the handle cached. This call may be made quite often.
*/
CLIENT *
getkwarnd_handle(void)
{
void *localhandle;
struct netconfig *nconf;
struct netconfig *tpconf;
static CLIENT *clnt;
struct timeval wait_time;
struct utsname u;
static char *hostname;
static bool_t first_time = TRUE;
#define TOTAL_TIMEOUT 1000 /* total timeout talking to kwarnd */
#define TOTAL_TRIES 1 /* Number of tries */
if (clnt)
return (clnt);
if (!(localhandle = setnetconfig()))
return (NULL);
tpconf = NULL;
if (first_time == TRUE) {
if (uname(&u) == -1) {
(void) endnetconfig(localhandle);
return ((CLIENT *)NULL);
}
if ((hostname = strdup(u.nodename)) == (char *)NULL) {
(void) endnetconfig(localhandle);
return ((CLIENT *)NULL);
}
first_time = FALSE;
}
while (nconf = getnetconfig(localhandle)) {
if (strcmp(nconf->nc_protofmly, NC_LOOPBACK) == 0) {
if (nconf->nc_semantics == NC_TPI_COTS_ORD) {
clnt = clnt_tp_create(hostname,
KWARNPROG, KWARNVERS, nconf);
if (clnt) {
dprt("got COTS_ORD\n");
break;
}
} else {
tpconf = nconf;
}
}
}
if ((clnt == NULL) && (tpconf)) {
/* Now, try the connection-oriented loopback transport */
clnt = clnt_tp_create(hostname, KWARNPROG, KWARNVERS, tpconf);
#ifdef DEBUG
if (clnt) {
dprt("got COTS\n");
}
#endif /* DEBUG */
}
(void) endnetconfig(localhandle);
/*
* This bit of code uses an as yet unimplemented argument to
* clnt_control(). CLSET_SVC_PRIV specifies that the underlying
* loopback transport should be checked to ensure it is
* connected to a process running as root. If so, the clnt_control()
* call returns TRUE. If not, it returns FALSE.
*/
#ifdef CLSET_SVC_PRIV
if (clnt_control(clnt, CLSET_SVC_PRIV, NULL) != TRUE) {
clnt_destroy(clnt);
clnt = NULL;
return (NULL);
{
#endif
if (clnt == NULL)
return (NULL);
clnt->cl_auth = authsys_create("", getuid(), 0, 0, NULL);
if (clnt->cl_auth == NULL) {
clnt_destroy(clnt);
clnt = NULL;
return (NULL);
}
wait_time.tv_sec = TOTAL_TIMEOUT/TOTAL_TRIES;
wait_time.tv_usec = 0;
(void) clnt_control(clnt, CLSET_RETRY_TIMEOUT, (char *)&wait_time);
return (clnt);
}
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