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 getserv* calls in nscd
30 */
31
32 #include <strings.h>
33 #include "cache.h"
34
35
36 #define name_db ctx->nsc_db[0]
37 #define port_db ctx->nsc_db[1]
38
39 #define NSC_NAME_SERVICES_BYNAME "getservbyname"
40 #define NSC_NAME_SERVICES_BYPORT "getservbyport"
41
42 static void servname_getlogstr(char *, char *, size_t, nss_XbyY_args_t *);
43 static int servname_compar(const void *, const void *);
44 static uint_t servname_gethash(nss_XbyY_key_t *, int);
45
46 static void servport_getlogstr(char *, char *, size_t, nss_XbyY_args_t *);
47 static int servport_compar(const void *, const void *);
48 static uint_t servport_gethash(nss_XbyY_key_t *, int);
49
50 void
serv_init_ctx(nsc_ctx_t * ctx)51 serv_init_ctx(nsc_ctx_t *ctx) {
52 ctx->dbname = NSS_DBNAM_SERVICES;
53 ctx->file_name = "/etc/services";
54 ctx->db_count = 2;
55 name_db = make_cache(nsc_key_other,
56 NSS_DBOP_SERVICES_BYNAME,
57 NSC_NAME_SERVICES_BYNAME,
58 servname_compar,
59 servname_getlogstr,
60 servname_gethash, nsc_ht_default, -1);
61
62 port_db = make_cache(nsc_key_other,
63 NSS_DBOP_SERVICES_BYPORT,
64 NSC_NAME_SERVICES_BYPORT,
65 servport_compar,
66 servport_getlogstr,
67 servport_gethash, nsc_ht_default, -1);
68 }
69
70 static int
servname_compar(const void * n1,const void * n2)71 servname_compar(const void *n1, const void *n2) {
72 nsc_entry_t *e1, *e2;
73 int res, l1, l2;
74
75 e1 = (nsc_entry_t *)n1;
76 e2 = (nsc_entry_t *)n2;
77
78 /* compare protocol */
79 if (e1->key.serv.proto == NULL && e2->key.serv.proto)
80 return (-1);
81 if (e1->key.serv.proto && e2->key.serv.proto == NULL)
82 return (1);
83 if (e1->key.serv.proto) {
84 l1 = strlen(e1->key.serv.proto);
85 l2 = strlen(e2->key.serv.proto);
86 res = strncmp(e1->key.serv.proto, e2->key.serv.proto,
87 (l1 > l2)?l1:l2);
88 if (res > 0)
89 return (1);
90 if (res < 0)
91 return (-1);
92 }
93
94 /* compare service name */
95 l1 = strlen(e1->key.serv.serv.name);
96 l2 = strlen(e2->key.serv.serv.name);
97 res = strncmp(e1->key.serv.serv.name, e2->key.serv.serv.name,
98 (l1 > l2)?l1:l2);
99 return (_NSC_INT_KEY_CMP(res, 0));
100 }
101
102 static uint_t
servname_gethash(nss_XbyY_key_t * key,int htsize)103 servname_gethash(nss_XbyY_key_t *key, int htsize) {
104 return (ces_gethash(key->serv.serv.name, htsize));
105 }
106
107 static void
servname_getlogstr(char * name,char * whoami,size_t len,nss_XbyY_args_t * argp)108 servname_getlogstr(char *name, char *whoami, size_t len,
109 nss_XbyY_args_t *argp) {
110 (void) snprintf(whoami, len, "%s [key=%s, %s]",
111 name,
112 argp->key.serv.serv.name,
113 check_null(argp->key.serv.proto));
114 }
115
116 static int
servport_compar(const void * n1,const void * n2)117 servport_compar(const void *n1, const void *n2) {
118 nsc_entry_t *e1, *e2;
119 int res, l1, l2;
120
121 e1 = (nsc_entry_t *)n1;
122 e2 = (nsc_entry_t *)n2;
123
124 /* compare protocol */
125 if (e1->key.serv.proto == NULL && e2->key.serv.proto)
126 return (-1);
127 if (e1->key.serv.proto && e2->key.serv.proto == NULL)
128 return (1);
129 if (e1->key.serv.proto) {
130 l1 = strlen(e1->key.serv.proto);
131 l2 = strlen(e2->key.serv.proto);
132 res = strncmp(e1->key.serv.proto, e2->key.serv.proto,
133 (l1 > l2)?l1:l2);
134 if (res > 0)
135 return (1);
136 if (res < 0)
137 return (-1);
138 }
139
140 /* compare port */
141 return (_NSC_INT_KEY_CMP(e1->key.serv.serv.port,
142 e2->key.serv.serv.port));
143 }
144
145 static uint_t
servport_gethash(nss_XbyY_key_t * key,int htsize)146 servport_gethash(nss_XbyY_key_t *key, int htsize) {
147 return (db_gethash(&key->serv.serv.port,
148 sizeof (key->serv.serv.port), htsize));
149 }
150
151 static void
servport_getlogstr(char * name,char * whoami,size_t len,nss_XbyY_args_t * argp)152 servport_getlogstr(char *name, char *whoami, size_t len,
153 nss_XbyY_args_t *argp) {
154 (void) snprintf(whoami, len, "%s [key=%d, %s]",
155 name,
156 argp->key.serv.serv.port,
157 check_null(argp->key.serv.proto));
158 }
159