usr/src/cmd/nscd/gettnrhdb.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 (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 /*
  22  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  23  * Use is subject to license terms.
  24  */
  25
  26 #pragma ident   "%Z%%M% %I%     %E% SMI"
  27
  28 /*
  29  * Routines to handle tsol_getrhbyaddr calls in nscd
  30  */
  31
  32 #include <string.h>
  33 #include <stdlib.h>
  34 #include <sys/types.h>
  35 #include <libtsnet.h>
  36 #include "cache.h"
  37
  38 #define tsol_rh_db      ctx->nsc_db[0]
  39
  40 #define NSC_NAME_TSOL_RH_BYADDR "tsol_getrhbyaddr"
  41
  42 static int tsol_rh_compar(const void *, const void *);
  43 static uint_t tsol_rh_gethash(nss_XbyY_key_t *, int);
  44 static void tsol_rh_getlogstr(char *, char *, size_t, nss_XbyY_args_t *);
  45
  46 void
  47 tnrhdb_init_ctx(nsc_ctx_t *ctx) {
  48         ctx->dbname = NSS_DBNAM_TSOL_RH;
  49         ctx->db_count = 1;
  50         ctx->file_name = TNRHDB_PATH;
  51
  52         tsol_rh_db = make_cache(nsc_key_other,
  53                         NSS_DBOP_TSOL_RH_BYADDR,
  54                         NSC_NAME_TSOL_RH_BYADDR,
  55                         tsol_rh_compar,
  56                         tsol_rh_getlogstr,
  57                         tsol_rh_gethash, nsc_ht_default, -1);
  58 }
  59
  60 static void
  61 tsol_rh_getlogstr(char *name, char *whoami, size_t len,
  62                         nss_XbyY_args_t *argp) {
  63
  64         (void) snprintf(whoami, len, "%s [key=%s, len=%d, addrtype=%d]",
  65                 name, argp->key.hostaddr.addr, argp->key.hostaddr.len,
  66                 argp->key.hostaddr.type);
  67 }
  68
  69 static int
  70 tsol_rh_compar(const void *n1, const void *n2) {
  71         nsc_entry_t     *e1, *e2;
  72         int             res, l1, l2;
  73
  74         e1 = (nsc_entry_t *)n1;
  75         e2 = (nsc_entry_t *)n2;
  76
  77         if (e1->key.hostaddr.type > e2->key.hostaddr.type)
  78                 return (1);
  79         else if (e1->key.hostaddr.type < e2->key.hostaddr.type)
  80                 return (-1);
  81
  82         l1 = strlen(e1->key.hostaddr.addr);
  83         l2 = strlen(e2->key.hostaddr.addr);
  84         res = strncasecmp(e1->key.hostaddr.addr, e2->key.hostaddr.addr,
  85                 (l1 > l2)?l1:l2);
  86         return (_NSC_INT_KEY_CMP(res, 0));
  87 }
  88
  89 static uint_t
  90 tsol_rh_gethash(nss_XbyY_key_t *key, int htsize) {
  91         return (db_gethash(key->hostaddr.addr,
  92                         strlen(key->hostaddr.addr), htsize));
  93 }