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 /*
27 * Routines to handle getserv* calls in nscd
28 */
29
30 #include <strings.h>
31 #include "cache.h"
32
33
34 #define name_db ctx->nsc_db[0]
35 #define port_db ctx->nsc_db[1]
36
37 #define NSC_NAME_SERVICES_BYNAME "getservbyname"
38 #define NSC_NAME_SERVICES_BYPORT "getservbyport"
39
40 static void servname_getlogstr(char *, char *, size_t, nss_XbyY_args_t *);
41 static int servname_compar(const void *, const void *);
42 static uint_t servname_gethash(nss_XbyY_key_t *, int);
43
44 static void servport_getlogstr(char *, char *, size_t, nss_XbyY_args_t *);
45 static int servport_compar(const void *, const void *);
46 static uint_t servport_gethash(nss_XbyY_key_t *, int);
47
48 void
serv_init_ctx(nsc_ctx_t * ctx)49 serv_init_ctx(nsc_ctx_t *ctx) {
50 ctx->dbname = NSS_DBNAM_SERVICES;
51 ctx->file_name = "/etc/services";
52 ctx->db_count = 2;
53 name_db = make_cache(nsc_key_other,
54 NSS_DBOP_SERVICES_BYNAME,
55 NSC_NAME_SERVICES_BYNAME,
56 servname_compar,
57 servname_getlogstr,
58 servname_gethash, nsc_ht_default, -1);
59
60 port_db = make_cache(nsc_key_other,
61 NSS_DBOP_SERVICES_BYPORT,
62 NSC_NAME_SERVICES_BYPORT,
63 servport_compar,
64 servport_getlogstr,
65 servport_gethash, nsc_ht_default, -1);
66 }
67
68 static int
servname_compar(const void * n1,const void * n2)69 servname_compar(const void *n1, const void *n2) {
70 nsc_entry_t *e1, *e2;
71 int res, l1, l2;
72
73 e1 = (nsc_entry_t *)n1;
74 e2 = (nsc_entry_t *)n2;
75
76 /* compare protocol */
77 if (e1->key.serv.proto == NULL && e2->key.serv.proto)
78 return (-1);
79 if (e1->key.serv.proto && e2->key.serv.proto == NULL)
80 return (1);
81 if (e1->key.serv.proto) {
82 l1 = strlen(e1->key.serv.proto);
83 l2 = strlen(e2->key.serv.proto);
84 res = strncmp(e1->key.serv.proto, e2->key.serv.proto,
85 (l1 > l2)?l1:l2);
86 if (res > 0)
87 return (1);
88 if (res < 0)
89 return (-1);
90 }
91
92 /* compare service name */
93 l1 = strlen(e1->key.serv.serv.name);
94 l2 = strlen(e2->key.serv.serv.name);
95 res = strncmp(e1->key.serv.serv.name, e2->key.serv.serv.name,
96 (l1 > l2)?l1:l2);
97 return (_NSC_INT_KEY_CMP(res, 0));
98 }
99
100 static uint_t
servname_gethash(nss_XbyY_key_t * key,int htsize)101 servname_gethash(nss_XbyY_key_t *key, int htsize) {
102 return (ces_gethash(key->serv.serv.name, htsize));
103 }
104
105 static void
servname_getlogstr(char * name,char * whoami,size_t len,nss_XbyY_args_t * argp)106 servname_getlogstr(char *name, char *whoami, size_t len,
107 nss_XbyY_args_t *argp) {
108 (void) snprintf(whoami, len, "%s [key=%s, %s]",
109 name,
110 argp->key.serv.serv.name,
111 check_null(argp->key.serv.proto));
112 }
113
114 static int
servport_compar(const void * n1,const void * n2)115 servport_compar(const void *n1, const void *n2) {
116 nsc_entry_t *e1, *e2;
117 int res, l1, l2;
118
119 e1 = (nsc_entry_t *)n1;
120 e2 = (nsc_entry_t *)n2;
121
122 /* compare protocol */
123 if (e1->key.serv.proto == NULL && e2->key.serv.proto)
124 return (-1);
125 if (e1->key.serv.proto && e2->key.serv.proto == NULL)
126 return (1);
127 if (e1->key.serv.proto) {
128 l1 = strlen(e1->key.serv.proto);
129 l2 = strlen(e2->key.serv.proto);
130 res = strncmp(e1->key.serv.proto, e2->key.serv.proto,
131 (l1 > l2)?l1:l2);
132 if (res > 0)
133 return (1);
134 if (res < 0)
135 return (-1);
136 }
137
138 /* compare port */
139 return (_NSC_INT_KEY_CMP(e1->key.serv.serv.port,
140 e2->key.serv.serv.port));
141 }
142
143 static uint_t
servport_gethash(nss_XbyY_key_t * key,int htsize)144 servport_gethash(nss_XbyY_key_t *key, int htsize) {
145 return (db_gethash(&key->serv.serv.port,
146 sizeof (key->serv.serv.port), htsize));
147 }
148
149 static void
servport_getlogstr(char * name,char * whoami,size_t len,nss_XbyY_args_t * argp)150 servport_getlogstr(char *name, char *whoami, size_t len,
151 nss_XbyY_args_t *argp) {
152 (void) snprintf(whoami, len, "%s [key=%d, %s]",
153 name,
154 argp->key.serv.serv.port,
155 check_null(argp->key.serv.proto));
156 }
157