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 #include <stdio.h> 29 #include <string.h> 30 #include <ctype.h> 31 #include <sys/types.h> 32 #include <nss_dbdefs.h> 33 #include <syslog.h> 34 #include <ns.h> 35 36 #ifndef NSS_DBNAM__PRINTERS /* not in nss_dbdefs.h because it's private */ 37 #define NSS_DBNAM__PRINTERS "_printers" 38 #endif 39 40 static DEFINE_NSS_DB_ROOT(db_root); 41 static DEFINE_NSS_GETENT(context); 42 43 static int printers_stayopen; 44 static char *private_ns = NULL; 45 static char initialized = 0; 46 47 48 static void 49 _nss_initf_printers(p) 50 nss_db_params_t *p; 51 { 52 if (private_ns != NULL) { 53 /* 54 * because we need to support a legacy interface that allows 55 * us to select a specific name service, we need to dummy up 56 * the parameters to use a private nsswitch database and set 57 * the * default_config entry to the name service we are 58 * looking into. 59 */ 60 p->name = NSS_DBNAM__PRINTERS; /* "_printers" */ 61 p->default_config = normalize_ns_name(private_ns); 62 private_ns = NULL; 63 } else if (initialized == 0) { 64 /* regular behaviour */ 65 p->name = NSS_DBNAM_PRINTERS; /* "printers" */ 66 p->default_config = NSS_DEFCONF_PRINTERS; 67 initialized = 1; 68 } 69 syslog(LOG_DEBUG, "database: %s, services: %s", 70 (p->name ? p->name : "NULL"), 71 (p->default_config ? p->default_config : "NULL")); 72 } 73 74 /* 75 * Return values: 0 = success, 1 = parse error, 2 = erange ... 76 * The structure pointer passed in is a structure in the caller's space 77 * wherein the field pointers would be set to areas in the buffer if 78 * need be. instring and buffer should be separate areas. 79 */ 80 /* ARGSUSED */ 81 static int 82 str2printer(const char *instr, int lenstr, void *ent, char *buffer, int buflen) 83 { 84 if (lenstr + 1 > buflen) 85 return (NSS_STR_PARSE_ERANGE); 86 87 /* skip entries that begin with '#' */ 88 if (instr[0] == '#') 89 return (NSS_STR_PARSE_PARSE); 90 91 /* 92 * We copy the input string into the output buffer 93 */ 94 (void) memcpy(buffer, instr, lenstr); 95 buffer[lenstr] = '\0'; 96 97 return (NSS_STR_PARSE_SUCCESS); 98 } 99 100 101 int 102 setprinterentry(int stayopen, char *ns) 103 { 104 printers_stayopen |= stayopen; 105 initialized = 0; 106 private_ns = ns; 107 nss_setent(&db_root, _nss_initf_printers, &context); 108 return (0); 109 } 110 111 112 int 113 endprinterentry() 114 { 115 printers_stayopen = 0; 116 initialized = 0; 117 nss_endent(&db_root, _nss_initf_printers, &context); 118 nss_delete(&db_root); 119 return (0); 120 } 121 122 123 /* ARGSUSED2 */ 124 int 125 getprinterentry(char *linebuf, int linelen, char *ns) 126 { 127 nss_XbyY_args_t arg; 128 nss_status_t res; 129 130 NSS_XbyY_INIT(&arg, linebuf, linebuf, linelen, str2printer); 131 res = nss_getent(&db_root, _nss_initf_printers, &context, &arg); 132 (void) NSS_XbyY_FINI(&arg); 133 return (arg.status = res); 134 } 135 136 137 int 138 getprinterbyname(char *name, char *linebuf, int linelen, char *ns) 139 { 140 nss_XbyY_args_t arg; 141 nss_status_t res; 142 143 private_ns = ns; 144 NSS_XbyY_INIT(&arg, linebuf, linebuf, linelen, str2printer); 145 arg.key.name = name; 146 res = nss_search(&db_root, _nss_initf_printers, 147 NSS_DBOP_PRINTERS_BYNAME, &arg); 148 (void) NSS_XbyY_FINI(&arg); 149 return (arg.status = res); 150 } 151