1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * files/printers_getbyname.c -- "files" backend for 24*0Sstevel@tonic-gate * nsswitch "printers" database. 25*0Sstevel@tonic-gate * 26*0Sstevel@tonic-gate * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 27*0Sstevel@tonic-gate * Use is subject to license terms. 28*0Sstevel@tonic-gate */ 29*0Sstevel@tonic-gate 30*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 31*0Sstevel@tonic-gate 32*0Sstevel@tonic-gate static const char *printers = "/etc/printers.conf"; 33*0Sstevel@tonic-gate 34*0Sstevel@tonic-gate #pragma weak _nss_files__printers_constr = _nss_files_printers_constr 35*0Sstevel@tonic-gate 36*0Sstevel@tonic-gate #include "files_common.h" 37*0Sstevel@tonic-gate #include <stdlib.h> 38*0Sstevel@tonic-gate #include <strings.h> 39*0Sstevel@tonic-gate 40*0Sstevel@tonic-gate static nss_status_t _nss_files_XY_printers(files_backend_ptr_t, 41*0Sstevel@tonic-gate nss_XbyY_args_t *, const char *); 42*0Sstevel@tonic-gate 43*0Sstevel@tonic-gate 44*0Sstevel@tonic-gate static nss_status_t 45*0Sstevel@tonic-gate getent(be, a) 46*0Sstevel@tonic-gate files_backend_ptr_t be; 47*0Sstevel@tonic-gate void *a; 48*0Sstevel@tonic-gate { 49*0Sstevel@tonic-gate nss_XbyY_args_t *args = (nss_XbyY_args_t *)a; 50*0Sstevel@tonic-gate 51*0Sstevel@tonic-gate return (_nss_files_XY_all(be, args, 1, 0, 0)); 52*0Sstevel@tonic-gate } 53*0Sstevel@tonic-gate 54*0Sstevel@tonic-gate 55*0Sstevel@tonic-gate static nss_status_t 56*0Sstevel@tonic-gate getbyname(be, a) 57*0Sstevel@tonic-gate files_backend_ptr_t be; 58*0Sstevel@tonic-gate void *a; 59*0Sstevel@tonic-gate { 60*0Sstevel@tonic-gate nss_XbyY_args_t *argp = (nss_XbyY_args_t *)a; 61*0Sstevel@tonic-gate nss_status_t res; 62*0Sstevel@tonic-gate 63*0Sstevel@tonic-gate /* printers_getbyname() has not set/endent; rewind on each call */ 64*0Sstevel@tonic-gate if ((res = _nss_files_setent(be, 0)) != NSS_SUCCESS) { 65*0Sstevel@tonic-gate return (res); 66*0Sstevel@tonic-gate } 67*0Sstevel@tonic-gate return (_nss_files_XY_printers(be, argp, argp->key.name)); 68*0Sstevel@tonic-gate } 69*0Sstevel@tonic-gate 70*0Sstevel@tonic-gate static files_backend_op_t printers_ops[] = { 71*0Sstevel@tonic-gate _nss_files_destr, 72*0Sstevel@tonic-gate _nss_files_endent, 73*0Sstevel@tonic-gate _nss_files_setent, 74*0Sstevel@tonic-gate getent, 75*0Sstevel@tonic-gate getbyname 76*0Sstevel@tonic-gate }; 77*0Sstevel@tonic-gate 78*0Sstevel@tonic-gate nss_backend_t * 79*0Sstevel@tonic-gate _nss_files_printers_constr(dummy1, dummy2, dummy3) 80*0Sstevel@tonic-gate const char *dummy1, *dummy2, *dummy3; 81*0Sstevel@tonic-gate { 82*0Sstevel@tonic-gate return (_nss_files_constr(printers_ops, 83*0Sstevel@tonic-gate sizeof (printers_ops) / sizeof (printers_ops[0]), 84*0Sstevel@tonic-gate printers, 85*0Sstevel@tonic-gate NSS_LINELEN_PRINTERS, 86*0Sstevel@tonic-gate NULL)); 87*0Sstevel@tonic-gate } 88*0Sstevel@tonic-gate 89*0Sstevel@tonic-gate /* 90*0Sstevel@tonic-gate * printers has the hostname as part of the data in the file, but the other 91*0Sstevel@tonic-gate * backends don't include it in the data passed to the backend. For this 92*0Sstevel@tonic-gate * reason, we process everything here and don't bother calling the backend. 93*0Sstevel@tonic-gate */ 94*0Sstevel@tonic-gate static nss_status_t 95*0Sstevel@tonic-gate _nss_files_XY_printers(be, args, filter) 96*0Sstevel@tonic-gate files_backend_ptr_t be; 97*0Sstevel@tonic-gate nss_XbyY_args_t *args; 98*0Sstevel@tonic-gate const char *filter; 99*0Sstevel@tonic-gate /* 100*0Sstevel@tonic-gate * filter not useful here since the key 101*0Sstevel@tonic-gate * we are looking for is the first "word" 102*0Sstevel@tonic-gate * on the line and we can be fast enough. 103*0Sstevel@tonic-gate */ 104*0Sstevel@tonic-gate { 105*0Sstevel@tonic-gate nss_status_t res; 106*0Sstevel@tonic-gate int parsestat; 107*0Sstevel@tonic-gate int namelen; 108*0Sstevel@tonic-gate 109*0Sstevel@tonic-gate if (be->buf == 0 && 110*0Sstevel@tonic-gate (be->buf = (char *)malloc(be->minbuf)) == 0) { 111*0Sstevel@tonic-gate (void) _nss_files_endent(be, 0); 112*0Sstevel@tonic-gate return (NSS_UNAVAIL); /* really panic, malloc failed */ 113*0Sstevel@tonic-gate } 114*0Sstevel@tonic-gate 115*0Sstevel@tonic-gate res = NSS_NOTFOUND; 116*0Sstevel@tonic-gate namelen = strlen(args->key.name); 117*0Sstevel@tonic-gate 118*0Sstevel@tonic-gate while (1) { 119*0Sstevel@tonic-gate char *instr = be->buf; 120*0Sstevel@tonic-gate char *p, *limit; 121*0Sstevel@tonic-gate int linelen; 122*0Sstevel@tonic-gate int found = 0; 123*0Sstevel@tonic-gate 124*0Sstevel@tonic-gate /* 125*0Sstevel@tonic-gate * _nss_files_read_line does process the '\' that are used 126*0Sstevel@tonic-gate * in /etc/printers.conf for continuation and gives one long 127*0Sstevel@tonic-gate * buffer. 128*0Sstevel@tonic-gate * 129*0Sstevel@tonic-gate * linelen counts the characters up to but excluding the '\n' 130*0Sstevel@tonic-gate */ 131*0Sstevel@tonic-gate if ((linelen = _nss_files_read_line(be->f, instr, 132*0Sstevel@tonic-gate be->minbuf)) < 0) { 133*0Sstevel@tonic-gate /* End of file */ 134*0Sstevel@tonic-gate args->returnval = 0; 135*0Sstevel@tonic-gate args->erange = 0; 136*0Sstevel@tonic-gate break; 137*0Sstevel@tonic-gate } 138*0Sstevel@tonic-gate p = instr; 139*0Sstevel@tonic-gate 140*0Sstevel@tonic-gate if (*p == '#') /* comment */ 141*0Sstevel@tonic-gate continue; 142*0Sstevel@tonic-gate 143*0Sstevel@tonic-gate /* 144*0Sstevel@tonic-gate * find the name in the namelist a|b|c...: 145*0Sstevel@tonic-gate */ 146*0Sstevel@tonic-gate if ((limit = strchr(instr, ':')) == NULL) /* bad line */ 147*0Sstevel@tonic-gate continue; 148*0Sstevel@tonic-gate while ((p < limit) && (found == 0)) { 149*0Sstevel@tonic-gate if ((strncmp(p, args->key.name, namelen) == 0) && 150*0Sstevel@tonic-gate ((*(p+namelen) == '|') || (*(p+namelen) == ':'))) 151*0Sstevel@tonic-gate found++; 152*0Sstevel@tonic-gate else { 153*0Sstevel@tonic-gate if ((p = strchr(p, '|')) == NULL) 154*0Sstevel@tonic-gate p = limit; 155*0Sstevel@tonic-gate else /* skip the '|' */ 156*0Sstevel@tonic-gate p++; 157*0Sstevel@tonic-gate } 158*0Sstevel@tonic-gate } 159*0Sstevel@tonic-gate if (found == 0) 160*0Sstevel@tonic-gate continue; 161*0Sstevel@tonic-gate 162*0Sstevel@tonic-gate p = instr; 163*0Sstevel@tonic-gate 164*0Sstevel@tonic-gate if (args->buf.buflen <= linelen) { /* not enough buffer */ 165*0Sstevel@tonic-gate args->erange = 1; 166*0Sstevel@tonic-gate break; 167*0Sstevel@tonic-gate } 168*0Sstevel@tonic-gate (void) memcpy(args->buf.buffer, p, linelen); 169*0Sstevel@tonic-gate args->buf.buffer[linelen] = '\0'; 170*0Sstevel@tonic-gate args->returnval = args->buf.result; 171*0Sstevel@tonic-gate res = NSS_SUCCESS; 172*0Sstevel@tonic-gate break; 173*0Sstevel@tonic-gate } 174*0Sstevel@tonic-gate (void) _nss_files_endent(be, 0); 175*0Sstevel@tonic-gate return (res); 176*0Sstevel@tonic-gate } 177