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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2006 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/*
* Rentrant (MT-safe) getrpcYY interfaces.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include "mt.h"
#include <ctype.h>
#include <nss_dbdefs.h>
#include <stdlib.h>
#include <string.h>
#include <rpc/rpcent.h>
extern int str2rpcent(const char *, int, void *, char *, int);
static int rpc_stayopen; /* Unsynchronized, but it affects only */
/* efficiency, not correctness */
static DEFINE_NSS_DB_ROOT(db_root);
static DEFINE_NSS_GETENT(context);
void
_nss_initf_rpc(nss_db_params_t *p)
{
p->name = NSS_DBNAM_RPC;
p->default_config = NSS_DEFCONF_RPC;
}
struct rpcent *
getrpcbyname_r(const char *name, struct rpcent *result, char *buffer,
int buflen)
{
nss_XbyY_args_t arg;
nss_status_t res;
if (name == (const char *)NULL) {
errno = ERANGE;
return (NULL);
}
NSS_XbyY_INIT(&arg, result, buffer, buflen, str2rpcent);
arg.key.name = name;
arg.stayopen = rpc_stayopen;
res = nss_search(&db_root, _nss_initf_rpc,
NSS_DBOP_RPC_BYNAME, &arg);
arg.status = res;
return ((struct rpcent *)NSS_XbyY_FINI(&arg));
}
struct rpcent *
getrpcbynumber_r(const int number, struct rpcent *result, char *buffer,
int buflen)
{
nss_XbyY_args_t arg;
nss_status_t res;
NSS_XbyY_INIT(&arg, result, buffer, buflen, str2rpcent);
arg.key.number = number;
arg.stayopen = rpc_stayopen;
res = nss_search(&db_root, _nss_initf_rpc,
NSS_DBOP_RPC_BYNUMBER, &arg);
arg.status = res;
return ((struct rpcent *)NSS_XbyY_FINI(&arg));
}
void
setrpcent(const int stay)
{
rpc_stayopen |= stay;
nss_setent(&db_root, _nss_initf_rpc, &context);
}
void
endrpcent(void)
{
rpc_stayopen = 0;
nss_endent(&db_root, _nss_initf_rpc, &context);
nss_delete(&db_root);
}
struct rpcent *
getrpcent_r(struct rpcent *result, char *buffer, int buflen)
{
nss_XbyY_args_t arg;
nss_status_t res;
NSS_XbyY_INIT(&arg, result, buffer, buflen, str2rpcent);
/* No key, no stayopen */
res = nss_getent(&db_root, _nss_initf_rpc, &context, &arg);
arg.status = res;
return ((struct rpcent *)NSS_XbyY_FINI(&arg));
}
int
str2rpcent(const char *instr, int lenstr, void *ent, char *buffer, int buflen)
{
struct rpcent *rpc = (struct rpcent *)ent;
const char *p, *numstart, *limit, *namestart;
ssize_t numlen, namelen = 0;
char numbuf[12];
char *numend;
if ((instr >= buffer && (buffer + buflen) > instr) ||
(buffer >= instr && (instr + lenstr) > buffer))
return (NSS_STR_PARSE_PARSE);
p = instr;
limit = p + lenstr;
while (p < limit && isspace(*p)) {
p++;
}
namestart = p;
while (p < limit && !isspace(*p)) {
p++; /* Skip over the canonical name */
}
namelen = p - namestart;
if (buflen <= namelen) /* not enough buffer */
return (NSS_STR_PARSE_ERANGE);
(void) memcpy(buffer, namestart, namelen);
buffer[namelen] = '\0';
rpc->r_name = buffer;
while (p < limit && isspace(*p)) {
p++;
}
if (p >= limit) /* Syntax error -- no RPC number */
return (NSS_STR_PARSE_PARSE);
numstart = p;
do {
p++; /* Find the end of the RPC number */
} while (p < limit && !isspace(*p));
numlen = p - numstart;
if (numlen >= sizeof (numbuf)) {
/* Syntax error -- supposed number is too long */
return (NSS_STR_PARSE_PARSE);
}
(void) memcpy(numbuf, numstart, numlen);
numbuf[numlen] = '\0';
rpc->r_number = (int)strtol(numbuf, &numend, 10);
if (*numend != '\0')
return (NSS_STR_PARSE_PARSE);
while (p < limit && isspace(*p)) {
p++;
}
/*
* Although nss_files_XY_all calls us with # stripped,
* we should be able to deal with it here in order to
* be more useful.
*/
if (p >= limit || *p == '#') { /* no aliases, no problem */
char **ptr;
ptr = (char **)ROUND_UP(buffer + namelen + 1,
sizeof (char *));
if ((char *)ptr >= buffer + buflen) {
rpc->r_aliases = 0; /* hope they don't try to peek in */
return (NSS_STR_PARSE_ERANGE);
}
*ptr = 0;
rpc->r_aliases = ptr;
return (NSS_STR_PARSE_SUCCESS);
}
rpc->r_aliases = _nss_netdb_aliases(p, (int)(lenstr - (p - instr)),
buffer + namelen + 1, (int)(buflen - namelen - 1));
return (NSS_STR_PARSE_SUCCESS);
}
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