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 #include <stdio.h> 27 #include <string.h> 28 #include <ctype.h> 29 #include <sys/types.h> 30 #include <nss_dbdefs.h> 31 #include <syslog.h> 32 #include <ns.h> 33 34 #ifndef NSS_DBNAM__PRINTERS /* not in nss_dbdefs.h because it's private */ 35 #define NSS_DBNAM__PRINTERS "_printers" 36 #endif 37 38 static DEFINE_NSS_DB_ROOT(db_root); 39 static DEFINE_NSS_GETENT(context); 40 41 static int printers_stayopen; 42 static char *private_ns = NULL; 43 44 static void 45 _nss_initf_printers(p) 46 nss_db_params_t *p; 47 { 48 if (private_ns != NULL) { 49 /* 50 * because we need to support a legacy interface that allows 51 * us to select a specific name service, we need to dummy up 52 * the parameters to use a private nsswitch database and set 53 * the * default_config entry to the name service we are 54 * looking into. 55 */ 56 p->name = NSS_DBNAM__PRINTERS; /* "_printers" */ 57 p->default_config = normalize_ns_name(private_ns); 58 } else { 59 /* regular behaviour */ 60 p->name = NSS_DBNAM_PRINTERS; /* "printers" */ 61 p->default_config = NSS_DEFCONF_PRINTERS; 62 } 63 syslog(LOG_DEBUG, "database: %s, default: %s", 64 (p->name ? p->name : "NULL"), 65 (p->default_config ? p->default_config : "NULL")); 66 } 67 68 /* 69 * Return values: 0 = success, 1 = parse error, 2 = erange ... 70 * The structure pointer passed in is a structure in the caller's space 71 * wherein the field pointers would be set to areas in the buffer if 72 * need be. instring and buffer should be separate areas. 73 */ 74 /* ARGSUSED */ 75 static int 76 str2printer(const char *instr, int lenstr, void *ent, char *buffer, int buflen) 77 { 78 if (lenstr + 1 > buflen) 79 return (NSS_STR_PARSE_ERANGE); 80 81 /* skip entries that begin with '#' */ 82 if (instr[0] == '#') 83 return (NSS_STR_PARSE_PARSE); 84 85 /* 86 * We copy the input string into the output buffer 87 */ 88 (void) memcpy(buffer, instr, lenstr); 89 buffer[lenstr] = '\0'; 90 91 return (NSS_STR_PARSE_SUCCESS); 92 } 93 94 95 int 96 setprinterentry(int stayopen, char *ns) 97 { 98 printers_stayopen |= stayopen; 99 private_ns = ns; 100 nss_setent(&db_root, _nss_initf_printers, &context); 101 private_ns = NULL; 102 return (0); 103 } 104 105 106 int 107 endprinterentry() 108 { 109 printers_stayopen = 0; 110 nss_endent(&db_root, _nss_initf_printers, &context); 111 nss_delete(&db_root); 112 private_ns = NULL; 113 return (0); 114 } 115 116 117 /* ARGSUSED2 */ 118 int 119 getprinterentry(char *linebuf, int linelen, char *ns) 120 { 121 nss_XbyY_args_t arg; 122 nss_status_t res; 123 124 private_ns = ns; 125 NSS_XbyY_INIT(&arg, linebuf, linebuf, linelen, str2printer); 126 res = nss_getent(&db_root, _nss_initf_printers, &context, &arg); 127 (void) NSS_XbyY_FINI(&arg); 128 private_ns = NULL; 129 130 return (arg.status = res); 131 } 132 133 134 int 135 getprinterbyname(char *name, char *linebuf, int linelen, char *ns) 136 { 137 nss_XbyY_args_t arg; 138 nss_status_t res; 139 140 private_ns = ns; 141 NSS_XbyY_INIT(&arg, linebuf, linebuf, linelen, str2printer); 142 arg.key.name = name; 143 res = nss_search(&db_root, _nss_initf_printers, 144 NSS_DBOP_PRINTERS_BYNAME, &arg); 145 (void) NSS_XbyY_FINI(&arg); 146 private_ns = NULL; 147 148 return (arg.status = res); 149 } 150