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/bootparams_getbyname.c -- "files" backend for 24*0Sstevel@tonic-gate * nsswitch "bootparams" database. 25*0Sstevel@tonic-gate * 26*0Sstevel@tonic-gate * Copyright (c) 1988-1995 Sun Microsystems Inc 27*0Sstevel@tonic-gate * All Rights Reserved. 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 *bootparams = "/etc/bootparams"; 33*0Sstevel@tonic-gate 34*0Sstevel@tonic-gate #include "files_common.h" 35*0Sstevel@tonic-gate #include <stdlib.h> 36*0Sstevel@tonic-gate #include <ctype.h> 37*0Sstevel@tonic-gate #include <strings.h> 38*0Sstevel@tonic-gate 39*0Sstevel@tonic-gate static nss_status_t _nss_files_XY_bootparams(files_backend_ptr_t, 40*0Sstevel@tonic-gate nss_XbyY_args_t *, const char *); 41*0Sstevel@tonic-gate 42*0Sstevel@tonic-gate static nss_status_t 43*0Sstevel@tonic-gate getbyname(be, a) 44*0Sstevel@tonic-gate files_backend_ptr_t be; 45*0Sstevel@tonic-gate void *a; 46*0Sstevel@tonic-gate { 47*0Sstevel@tonic-gate nss_XbyY_args_t *argp = (nss_XbyY_args_t *) a; 48*0Sstevel@tonic-gate nss_status_t res; 49*0Sstevel@tonic-gate 50*0Sstevel@tonic-gate /* bootparams_getbyname() has not set/endent; rewind on each call */ 51*0Sstevel@tonic-gate if ((res = _nss_files_setent(be, 0)) != NSS_SUCCESS) { 52*0Sstevel@tonic-gate return (res); 53*0Sstevel@tonic-gate } 54*0Sstevel@tonic-gate return (_nss_files_XY_bootparams(be, argp, argp->key.name)); 55*0Sstevel@tonic-gate } 56*0Sstevel@tonic-gate 57*0Sstevel@tonic-gate static files_backend_op_t bootparams_ops[] = { 58*0Sstevel@tonic-gate _nss_files_destr, 59*0Sstevel@tonic-gate getbyname 60*0Sstevel@tonic-gate }; 61*0Sstevel@tonic-gate 62*0Sstevel@tonic-gate /*ARGSUSED*/ 63*0Sstevel@tonic-gate nss_backend_t * 64*0Sstevel@tonic-gate _nss_files_bootparams_constr(dummy1, dummy2, dummy3) 65*0Sstevel@tonic-gate const char *dummy1, *dummy2, *dummy3; 66*0Sstevel@tonic-gate { 67*0Sstevel@tonic-gate return (_nss_files_constr(bootparams_ops, 68*0Sstevel@tonic-gate sizeof (bootparams_ops) / sizeof (bootparams_ops[0]), 69*0Sstevel@tonic-gate bootparams, 70*0Sstevel@tonic-gate NSS_LINELEN_BOOTPARAMS, 71*0Sstevel@tonic-gate NULL)); 72*0Sstevel@tonic-gate } 73*0Sstevel@tonic-gate 74*0Sstevel@tonic-gate /* 75*0Sstevel@tonic-gate * bootparams has the hostname as part of the data in the file, but the other 76*0Sstevel@tonic-gate * backends don't include it in the data passed to the backend. For this 77*0Sstevel@tonic-gate * reason, we process everything here and don't bother calling the backend. 78*0Sstevel@tonic-gate */ 79*0Sstevel@tonic-gate /*ARGSUSED*/ 80*0Sstevel@tonic-gate static nss_status_t 81*0Sstevel@tonic-gate _nss_files_XY_bootparams(be, args, filter) 82*0Sstevel@tonic-gate files_backend_ptr_t be; 83*0Sstevel@tonic-gate nss_XbyY_args_t *args; 84*0Sstevel@tonic-gate const char *filter; 85*0Sstevel@tonic-gate /* 86*0Sstevel@tonic-gate * filter not useful here since the key 87*0Sstevel@tonic-gate * we are looking for is the first "word" 88*0Sstevel@tonic-gate * on the line and we can be fast enough. 89*0Sstevel@tonic-gate */ 90*0Sstevel@tonic-gate { 91*0Sstevel@tonic-gate nss_status_t res; 92*0Sstevel@tonic-gate 93*0Sstevel@tonic-gate if (be->buf == 0 && 94*0Sstevel@tonic-gate (be->buf = (char *)malloc(be->minbuf)) == 0) { 95*0Sstevel@tonic-gate (void) _nss_files_endent(be, 0); 96*0Sstevel@tonic-gate return (NSS_UNAVAIL); /* really panic, malloc failed */ 97*0Sstevel@tonic-gate } 98*0Sstevel@tonic-gate 99*0Sstevel@tonic-gate res = NSS_NOTFOUND; 100*0Sstevel@tonic-gate 101*0Sstevel@tonic-gate /*CONSTCOND*/ 102*0Sstevel@tonic-gate while (1) { 103*0Sstevel@tonic-gate char *instr = be->buf; 104*0Sstevel@tonic-gate char *p, *host, *limit; 105*0Sstevel@tonic-gate int linelen; 106*0Sstevel@tonic-gate 107*0Sstevel@tonic-gate /* 108*0Sstevel@tonic-gate * _nss_files_read_line does process the '\' that are used 109*0Sstevel@tonic-gate * in /etc/bootparams for continuation and gives one long 110*0Sstevel@tonic-gate * buffer. 111*0Sstevel@tonic-gate * 112*0Sstevel@tonic-gate * linelen counts the characters up to but excluding the '\n' 113*0Sstevel@tonic-gate */ 114*0Sstevel@tonic-gate if ((linelen = _nss_files_read_line(be->f, instr, 115*0Sstevel@tonic-gate be->minbuf)) < 0) { 116*0Sstevel@tonic-gate /* End of file */ 117*0Sstevel@tonic-gate args->returnval = 0; 118*0Sstevel@tonic-gate args->erange = 0; 119*0Sstevel@tonic-gate break; 120*0Sstevel@tonic-gate } 121*0Sstevel@tonic-gate 122*0Sstevel@tonic-gate /* 123*0Sstevel@tonic-gate * we need to strip off the host name before returning it. 124*0Sstevel@tonic-gate */ 125*0Sstevel@tonic-gate p = instr; 126*0Sstevel@tonic-gate limit = p + linelen; 127*0Sstevel@tonic-gate 128*0Sstevel@tonic-gate /* Skip over leading whitespace */ 129*0Sstevel@tonic-gate while (p < limit && isspace(*p)) { 130*0Sstevel@tonic-gate p++; 131*0Sstevel@tonic-gate } 132*0Sstevel@tonic-gate host = p; 133*0Sstevel@tonic-gate 134*0Sstevel@tonic-gate /* Skip over the hostname */ 135*0Sstevel@tonic-gate while (p < limit && !isspace(*p)) { 136*0Sstevel@tonic-gate p++; 137*0Sstevel@tonic-gate } 138*0Sstevel@tonic-gate *p++ = '\0'; 139*0Sstevel@tonic-gate 140*0Sstevel@tonic-gate if (strcasecmp(args->key.name, host) != 0) { 141*0Sstevel@tonic-gate continue; 142*0Sstevel@tonic-gate } 143*0Sstevel@tonic-gate 144*0Sstevel@tonic-gate /* Skip over whitespace between name and first datum */ 145*0Sstevel@tonic-gate while (p < limit && isspace(*p)) { 146*0Sstevel@tonic-gate p++; 147*0Sstevel@tonic-gate } 148*0Sstevel@tonic-gate if (p >= limit) { 149*0Sstevel@tonic-gate /* Syntax error -- no data! Just skip it. */ 150*0Sstevel@tonic-gate continue; 151*0Sstevel@tonic-gate } 152*0Sstevel@tonic-gate 153*0Sstevel@tonic-gate linelen -= (p - instr); 154*0Sstevel@tonic-gate if (args->buf.buflen <= linelen) { /* not enough buffer */ 155*0Sstevel@tonic-gate args->erange = 1; 156*0Sstevel@tonic-gate break; 157*0Sstevel@tonic-gate } 158*0Sstevel@tonic-gate (void) memcpy(args->buf.buffer, p, linelen); 159*0Sstevel@tonic-gate args->buf.buffer[linelen] = '\0'; 160*0Sstevel@tonic-gate args->returnval = args->buf.result; 161*0Sstevel@tonic-gate res = NSS_SUCCESS; 162*0Sstevel@tonic-gate break; 163*0Sstevel@tonic-gate } 164*0Sstevel@tonic-gate (void) _nss_files_endent(be, 0); 165*0Sstevel@tonic-gate return (res); 166*0Sstevel@tonic-gate } 167