1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * Copyright 1997-2002 Sun Microsystems, Inc. All rights reserved. 3*0Sstevel@tonic-gate * Use is subject to license terms. 4*0Sstevel@tonic-gate */ 5*0Sstevel@tonic-gate 6*0Sstevel@tonic-gate /* 7*0Sstevel@tonic-gate * Copyright (c) 1989, 1993, 1995 8*0Sstevel@tonic-gate * The Regents of the University of California. All rights reserved. 9*0Sstevel@tonic-gate * 10*0Sstevel@tonic-gate * Redistribution and use in source and binary forms, with or without 11*0Sstevel@tonic-gate * modification, are permitted provided that the following conditions 12*0Sstevel@tonic-gate * are met: 13*0Sstevel@tonic-gate * 1. Redistributions of source code must retain the above copyright 14*0Sstevel@tonic-gate * notice, this list of conditions and the following disclaimer. 15*0Sstevel@tonic-gate * 2. Redistributions in binary form must reproduce the above copyright 16*0Sstevel@tonic-gate * notice, this list of conditions and the following disclaimer in the 17*0Sstevel@tonic-gate * documentation and/or other materials provided with the distribution. 18*0Sstevel@tonic-gate * 3. All advertising materials mentioning features or use of this software 19*0Sstevel@tonic-gate * must display the following acknowledgement: 20*0Sstevel@tonic-gate * This product includes software developed by the University of 21*0Sstevel@tonic-gate * California, Berkeley and its contributors. 22*0Sstevel@tonic-gate * 4. Neither the name of the University nor the names of its contributors 23*0Sstevel@tonic-gate * may be used to endorse or promote products derived from this software 24*0Sstevel@tonic-gate * without specific prior written permission. 25*0Sstevel@tonic-gate * 26*0Sstevel@tonic-gate * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 27*0Sstevel@tonic-gate * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28*0Sstevel@tonic-gate * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29*0Sstevel@tonic-gate * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 30*0Sstevel@tonic-gate * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31*0Sstevel@tonic-gate * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32*0Sstevel@tonic-gate * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33*0Sstevel@tonic-gate * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34*0Sstevel@tonic-gate * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35*0Sstevel@tonic-gate * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36*0Sstevel@tonic-gate * SUCH DAMAGE. 37*0Sstevel@tonic-gate */ 38*0Sstevel@tonic-gate 39*0Sstevel@tonic-gate /* 40*0Sstevel@tonic-gate * Portions Copyright (c) 1996-1999 by Internet Software Consortium. 41*0Sstevel@tonic-gate * 42*0Sstevel@tonic-gate * Permission to use, copy, modify, and distribute this software for any 43*0Sstevel@tonic-gate * purpose with or without fee is hereby granted, provided that the above 44*0Sstevel@tonic-gate * copyright notice and this permission notice appear in all copies. 45*0Sstevel@tonic-gate * 46*0Sstevel@tonic-gate * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS 47*0Sstevel@tonic-gate * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES 48*0Sstevel@tonic-gate * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE 49*0Sstevel@tonic-gate * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL 50*0Sstevel@tonic-gate * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR 51*0Sstevel@tonic-gate * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS 52*0Sstevel@tonic-gate * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS 53*0Sstevel@tonic-gate * SOFTWARE. 54*0Sstevel@tonic-gate */ 55*0Sstevel@tonic-gate 56*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 57*0Sstevel@tonic-gate 58*0Sstevel@tonic-gate #if defined(LIBC_SCCS) && !defined(lint) 59*0Sstevel@tonic-gate static const char rcsid[] = "$Id: lcl_nw.c,v 1.22 2001/05/29 05:49:07 marka Exp $"; 60*0Sstevel@tonic-gate /* from getgrent.c 8.2 (Berkeley) 3/21/94"; */ 61*0Sstevel@tonic-gate /* from BSDI Id: getgrent.c,v 2.8 1996/05/28 18:15:14 bostic Exp $ */ 62*0Sstevel@tonic-gate #endif /* LIBC_SCCS and not lint */ 63*0Sstevel@tonic-gate 64*0Sstevel@tonic-gate /* Imports */ 65*0Sstevel@tonic-gate 66*0Sstevel@tonic-gate #include "port_before.h" 67*0Sstevel@tonic-gate 68*0Sstevel@tonic-gate #include <sys/types.h> 69*0Sstevel@tonic-gate #include <sys/socket.h> 70*0Sstevel@tonic-gate 71*0Sstevel@tonic-gate #include <netinet/in.h> 72*0Sstevel@tonic-gate #include <arpa/inet.h> 73*0Sstevel@tonic-gate #include <arpa/nameser.h> 74*0Sstevel@tonic-gate 75*0Sstevel@tonic-gate #include <errno.h> 76*0Sstevel@tonic-gate #include <fcntl.h> 77*0Sstevel@tonic-gate #include <resolv.h> 78*0Sstevel@tonic-gate #include <stdio.h> 79*0Sstevel@tonic-gate #include <stdlib.h> 80*0Sstevel@tonic-gate #include <string.h> 81*0Sstevel@tonic-gate 82*0Sstevel@tonic-gate #include <irs.h> 83*0Sstevel@tonic-gate #include <isc/memcluster.h> 84*0Sstevel@tonic-gate 85*0Sstevel@tonic-gate #include "port_after.h" 86*0Sstevel@tonic-gate 87*0Sstevel@tonic-gate #include <isc/misc.h> 88*0Sstevel@tonic-gate #include "irs_p.h" 89*0Sstevel@tonic-gate #include "lcl_p.h" 90*0Sstevel@tonic-gate 91*0Sstevel@tonic-gate #define MAXALIASES 35 92*0Sstevel@tonic-gate #define MAXADDRSIZE 4 93*0Sstevel@tonic-gate 94*0Sstevel@tonic-gate struct pvt { 95*0Sstevel@tonic-gate FILE * fp; 96*0Sstevel@tonic-gate char line[BUFSIZ+1]; 97*0Sstevel@tonic-gate struct nwent net; 98*0Sstevel@tonic-gate char * aliases[MAXALIASES]; 99*0Sstevel@tonic-gate char addr[MAXADDRSIZE]; 100*0Sstevel@tonic-gate struct __res_state * res; 101*0Sstevel@tonic-gate void (*free_res)(void *); 102*0Sstevel@tonic-gate }; 103*0Sstevel@tonic-gate 104*0Sstevel@tonic-gate /* Forward */ 105*0Sstevel@tonic-gate 106*0Sstevel@tonic-gate static void nw_close(struct irs_nw *); 107*0Sstevel@tonic-gate static struct nwent * nw_byname(struct irs_nw *, const char *, int); 108*0Sstevel@tonic-gate static struct nwent * nw_byaddr(struct irs_nw *, void *, int, int); 109*0Sstevel@tonic-gate static struct nwent * nw_next(struct irs_nw *); 110*0Sstevel@tonic-gate static void nw_rewind(struct irs_nw *); 111*0Sstevel@tonic-gate static void nw_minimize(struct irs_nw *); 112*0Sstevel@tonic-gate static struct __res_state * nw_res_get(struct irs_nw *this); 113*0Sstevel@tonic-gate static void nw_res_set(struct irs_nw *this, 114*0Sstevel@tonic-gate struct __res_state *res, 115*0Sstevel@tonic-gate void (*free_res)(void *)); 116*0Sstevel@tonic-gate 117*0Sstevel@tonic-gate static int init(struct irs_nw *this); 118*0Sstevel@tonic-gate 119*0Sstevel@tonic-gate /* Portability. */ 120*0Sstevel@tonic-gate 121*0Sstevel@tonic-gate #ifndef SEEK_SET 122*0Sstevel@tonic-gate # define SEEK_SET 0 123*0Sstevel@tonic-gate #endif 124*0Sstevel@tonic-gate 125*0Sstevel@tonic-gate /* Public */ 126*0Sstevel@tonic-gate 127*0Sstevel@tonic-gate struct irs_nw * 128*0Sstevel@tonic-gate irs_lcl_nw(struct irs_acc *this) { 129*0Sstevel@tonic-gate struct irs_nw *nw; 130*0Sstevel@tonic-gate struct pvt *pvt; 131*0Sstevel@tonic-gate 132*0Sstevel@tonic-gate UNUSED(this); 133*0Sstevel@tonic-gate 134*0Sstevel@tonic-gate if (!(pvt = memget(sizeof *pvt))) { 135*0Sstevel@tonic-gate errno = ENOMEM; 136*0Sstevel@tonic-gate return (NULL); 137*0Sstevel@tonic-gate } 138*0Sstevel@tonic-gate memset(pvt, 0, sizeof *pvt); 139*0Sstevel@tonic-gate if (!(nw = memget(sizeof *nw))) { 140*0Sstevel@tonic-gate memput(pvt, sizeof *pvt); 141*0Sstevel@tonic-gate errno = ENOMEM; 142*0Sstevel@tonic-gate return (NULL); 143*0Sstevel@tonic-gate } 144*0Sstevel@tonic-gate memset(nw, 0x5e, sizeof *nw); 145*0Sstevel@tonic-gate nw->private = pvt; 146*0Sstevel@tonic-gate nw->close = nw_close; 147*0Sstevel@tonic-gate nw->byname = nw_byname; 148*0Sstevel@tonic-gate nw->byaddr = nw_byaddr; 149*0Sstevel@tonic-gate nw->next = nw_next; 150*0Sstevel@tonic-gate nw->rewind = nw_rewind; 151*0Sstevel@tonic-gate nw->minimize = nw_minimize; 152*0Sstevel@tonic-gate nw->res_get = nw_res_get; 153*0Sstevel@tonic-gate nw->res_set = nw_res_set; 154*0Sstevel@tonic-gate return (nw); 155*0Sstevel@tonic-gate } 156*0Sstevel@tonic-gate 157*0Sstevel@tonic-gate /* Methods */ 158*0Sstevel@tonic-gate 159*0Sstevel@tonic-gate static void 160*0Sstevel@tonic-gate nw_close(struct irs_nw *this) { 161*0Sstevel@tonic-gate struct pvt *pvt = (struct pvt *)this->private; 162*0Sstevel@tonic-gate 163*0Sstevel@tonic-gate nw_minimize(this); 164*0Sstevel@tonic-gate if (pvt->res && pvt->free_res) 165*0Sstevel@tonic-gate (*pvt->free_res)(pvt->res); 166*0Sstevel@tonic-gate if (pvt->fp) 167*0Sstevel@tonic-gate (void)fclose(pvt->fp); 168*0Sstevel@tonic-gate memput(pvt, sizeof *pvt); 169*0Sstevel@tonic-gate memput(this, sizeof *this); 170*0Sstevel@tonic-gate } 171*0Sstevel@tonic-gate 172*0Sstevel@tonic-gate static struct nwent * 173*0Sstevel@tonic-gate nw_byaddr(struct irs_nw *this, void *net, int length, int type) { 174*0Sstevel@tonic-gate struct nwent *p; 175*0Sstevel@tonic-gate 176*0Sstevel@tonic-gate if (init(this) == -1) 177*0Sstevel@tonic-gate return(NULL); 178*0Sstevel@tonic-gate 179*0Sstevel@tonic-gate nw_rewind(this); 180*0Sstevel@tonic-gate while ((p = nw_next(this)) != NULL) 181*0Sstevel@tonic-gate if (p->n_addrtype == type && p->n_length == length) 182*0Sstevel@tonic-gate if (bitncmp(p->n_addr, net, length) == 0) 183*0Sstevel@tonic-gate break; 184*0Sstevel@tonic-gate return (p); 185*0Sstevel@tonic-gate } 186*0Sstevel@tonic-gate 187*0Sstevel@tonic-gate static struct nwent * 188*0Sstevel@tonic-gate nw_byname(struct irs_nw *this, const char *name, int type) { 189*0Sstevel@tonic-gate struct nwent *p; 190*0Sstevel@tonic-gate char **ap; 191*0Sstevel@tonic-gate 192*0Sstevel@tonic-gate if (init(this) == -1) 193*0Sstevel@tonic-gate return(NULL); 194*0Sstevel@tonic-gate 195*0Sstevel@tonic-gate nw_rewind(this); 196*0Sstevel@tonic-gate while ((p = nw_next(this)) != NULL) { 197*0Sstevel@tonic-gate if (ns_samename(p->n_name, name) == 1 && 198*0Sstevel@tonic-gate p->n_addrtype == type) 199*0Sstevel@tonic-gate break; 200*0Sstevel@tonic-gate for (ap = p->n_aliases; *ap; ap++) 201*0Sstevel@tonic-gate if ((ns_samename(*ap, name) == 1) && 202*0Sstevel@tonic-gate (p->n_addrtype == type)) 203*0Sstevel@tonic-gate goto found; 204*0Sstevel@tonic-gate } 205*0Sstevel@tonic-gate found: 206*0Sstevel@tonic-gate return (p); 207*0Sstevel@tonic-gate } 208*0Sstevel@tonic-gate 209*0Sstevel@tonic-gate static void 210*0Sstevel@tonic-gate nw_rewind(struct irs_nw *this) { 211*0Sstevel@tonic-gate struct pvt *pvt = (struct pvt *)this->private; 212*0Sstevel@tonic-gate 213*0Sstevel@tonic-gate if (pvt->fp) { 214*0Sstevel@tonic-gate if (fseek(pvt->fp, 0L, SEEK_SET) == 0) 215*0Sstevel@tonic-gate return; 216*0Sstevel@tonic-gate (void)fclose(pvt->fp); 217*0Sstevel@tonic-gate } 218*0Sstevel@tonic-gate if (!(pvt->fp = fopen(_PATH_NETWORKS, "r"))) 219*0Sstevel@tonic-gate return; 220*0Sstevel@tonic-gate if (fcntl(fileno(pvt->fp), F_SETFD, 1) < 0) { 221*0Sstevel@tonic-gate (void)fclose(pvt->fp); 222*0Sstevel@tonic-gate pvt->fp = NULL; 223*0Sstevel@tonic-gate } 224*0Sstevel@tonic-gate } 225*0Sstevel@tonic-gate 226*0Sstevel@tonic-gate static struct nwent * 227*0Sstevel@tonic-gate nw_next(struct irs_nw *this) { 228*0Sstevel@tonic-gate struct pvt *pvt = (struct pvt *)this->private; 229*0Sstevel@tonic-gate struct nwent *ret = NULL; 230*0Sstevel@tonic-gate char *p, *cp, **q; 231*0Sstevel@tonic-gate char *bufp, *ndbuf, *dbuf = NULL; 232*0Sstevel@tonic-gate int c, bufsiz, offset = 0; 233*0Sstevel@tonic-gate 234*0Sstevel@tonic-gate if (init(this) == -1) 235*0Sstevel@tonic-gate return(NULL); 236*0Sstevel@tonic-gate 237*0Sstevel@tonic-gate if (pvt->fp == NULL) 238*0Sstevel@tonic-gate nw_rewind(this); 239*0Sstevel@tonic-gate if (pvt->fp == NULL) { 240*0Sstevel@tonic-gate RES_SET_H_ERRNO(pvt->res, NETDB_INTERNAL); 241*0Sstevel@tonic-gate return (NULL); 242*0Sstevel@tonic-gate } 243*0Sstevel@tonic-gate bufp = pvt->line; 244*0Sstevel@tonic-gate bufsiz = sizeof(pvt->line); 245*0Sstevel@tonic-gate 246*0Sstevel@tonic-gate again: 247*0Sstevel@tonic-gate p = fgets(bufp + offset, bufsiz - offset, pvt->fp); 248*0Sstevel@tonic-gate if (p == NULL) 249*0Sstevel@tonic-gate goto cleanup; 250*0Sstevel@tonic-gate if (!strchr(p, '\n') && !feof(pvt->fp)) { 251*0Sstevel@tonic-gate #define GROWBUF 1024 252*0Sstevel@tonic-gate /* allocate space for longer line */ 253*0Sstevel@tonic-gate if (dbuf == NULL) { 254*0Sstevel@tonic-gate if ((ndbuf = malloc(bufsiz + GROWBUF)) != NULL) 255*0Sstevel@tonic-gate strcpy(ndbuf, bufp); 256*0Sstevel@tonic-gate } else 257*0Sstevel@tonic-gate ndbuf = realloc(dbuf, bufsiz + GROWBUF); 258*0Sstevel@tonic-gate if (ndbuf) { 259*0Sstevel@tonic-gate dbuf = ndbuf; 260*0Sstevel@tonic-gate bufp = dbuf; 261*0Sstevel@tonic-gate bufsiz += GROWBUF; 262*0Sstevel@tonic-gate offset = strlen(dbuf); 263*0Sstevel@tonic-gate } else { 264*0Sstevel@tonic-gate /* allocation failed; skip this long line */ 265*0Sstevel@tonic-gate while ((c = getc(pvt->fp)) != EOF) 266*0Sstevel@tonic-gate if (c == '\n') 267*0Sstevel@tonic-gate break; 268*0Sstevel@tonic-gate if (c != EOF) 269*0Sstevel@tonic-gate ungetc(c, pvt->fp); 270*0Sstevel@tonic-gate } 271*0Sstevel@tonic-gate goto again; 272*0Sstevel@tonic-gate } 273*0Sstevel@tonic-gate 274*0Sstevel@tonic-gate p -= offset; 275*0Sstevel@tonic-gate offset = 0; 276*0Sstevel@tonic-gate 277*0Sstevel@tonic-gate if (*p == '#') 278*0Sstevel@tonic-gate goto again; 279*0Sstevel@tonic-gate 280*0Sstevel@tonic-gate cp = strpbrk(p, "#\n"); 281*0Sstevel@tonic-gate if (cp != NULL) 282*0Sstevel@tonic-gate *cp = '\0'; 283*0Sstevel@tonic-gate pvt->net.n_name = p; 284*0Sstevel@tonic-gate cp = strpbrk(p, " \t"); 285*0Sstevel@tonic-gate if (cp == NULL) 286*0Sstevel@tonic-gate goto again; 287*0Sstevel@tonic-gate *cp++ = '\0'; 288*0Sstevel@tonic-gate while (*cp == ' ' || *cp == '\t') 289*0Sstevel@tonic-gate cp++; 290*0Sstevel@tonic-gate p = strpbrk(cp, " \t"); 291*0Sstevel@tonic-gate if (p != NULL) 292*0Sstevel@tonic-gate *p++ = '\0'; 293*0Sstevel@tonic-gate pvt->net.n_length = inet_net_pton(AF_INET, cp, pvt->addr, 294*0Sstevel@tonic-gate sizeof pvt->addr); 295*0Sstevel@tonic-gate if (pvt->net.n_length < 0) 296*0Sstevel@tonic-gate goto again; 297*0Sstevel@tonic-gate pvt->net.n_addrtype = AF_INET; 298*0Sstevel@tonic-gate pvt->net.n_addr = pvt->addr; 299*0Sstevel@tonic-gate q = pvt->net.n_aliases = pvt->aliases; 300*0Sstevel@tonic-gate if (p != NULL) { 301*0Sstevel@tonic-gate cp = p; 302*0Sstevel@tonic-gate while (cp && *cp) { 303*0Sstevel@tonic-gate if (*cp == ' ' || *cp == '\t') { 304*0Sstevel@tonic-gate cp++; 305*0Sstevel@tonic-gate continue; 306*0Sstevel@tonic-gate } 307*0Sstevel@tonic-gate if (q < &pvt->aliases[MAXALIASES - 1]) 308*0Sstevel@tonic-gate *q++ = cp; 309*0Sstevel@tonic-gate cp = strpbrk(cp, " \t"); 310*0Sstevel@tonic-gate if (cp != NULL) 311*0Sstevel@tonic-gate *cp++ = '\0'; 312*0Sstevel@tonic-gate } 313*0Sstevel@tonic-gate } 314*0Sstevel@tonic-gate *q = NULL; 315*0Sstevel@tonic-gate ret = &pvt->net; 316*0Sstevel@tonic-gate 317*0Sstevel@tonic-gate cleanup: 318*0Sstevel@tonic-gate if (dbuf) 319*0Sstevel@tonic-gate free(dbuf); 320*0Sstevel@tonic-gate 321*0Sstevel@tonic-gate return (ret); 322*0Sstevel@tonic-gate } 323*0Sstevel@tonic-gate 324*0Sstevel@tonic-gate static void 325*0Sstevel@tonic-gate nw_minimize(struct irs_nw *this) { 326*0Sstevel@tonic-gate struct pvt *pvt = (struct pvt *)this->private; 327*0Sstevel@tonic-gate 328*0Sstevel@tonic-gate if (pvt->res) 329*0Sstevel@tonic-gate res_nclose(pvt->res); 330*0Sstevel@tonic-gate if (pvt->fp != NULL) { 331*0Sstevel@tonic-gate (void)fclose(pvt->fp); 332*0Sstevel@tonic-gate pvt->fp = NULL; 333*0Sstevel@tonic-gate } 334*0Sstevel@tonic-gate } 335*0Sstevel@tonic-gate 336*0Sstevel@tonic-gate static struct __res_state * 337*0Sstevel@tonic-gate nw_res_get(struct irs_nw *this) { 338*0Sstevel@tonic-gate struct pvt *pvt = (struct pvt *)this->private; 339*0Sstevel@tonic-gate 340*0Sstevel@tonic-gate if (!pvt->res) { 341*0Sstevel@tonic-gate struct __res_state *res; 342*0Sstevel@tonic-gate res = (struct __res_state *)malloc(sizeof *res); 343*0Sstevel@tonic-gate if (!res) { 344*0Sstevel@tonic-gate errno = ENOMEM; 345*0Sstevel@tonic-gate return (NULL); 346*0Sstevel@tonic-gate } 347*0Sstevel@tonic-gate memset(res, 0, sizeof *res); 348*0Sstevel@tonic-gate nw_res_set(this, res, free); 349*0Sstevel@tonic-gate } 350*0Sstevel@tonic-gate 351*0Sstevel@tonic-gate return (pvt->res); 352*0Sstevel@tonic-gate } 353*0Sstevel@tonic-gate 354*0Sstevel@tonic-gate static void 355*0Sstevel@tonic-gate nw_res_set(struct irs_nw *this, struct __res_state *res, 356*0Sstevel@tonic-gate void (*free_res)(void *)) { 357*0Sstevel@tonic-gate struct pvt *pvt = (struct pvt *)this->private; 358*0Sstevel@tonic-gate 359*0Sstevel@tonic-gate if (pvt->res && pvt->free_res) { 360*0Sstevel@tonic-gate res_nclose(pvt->res); 361*0Sstevel@tonic-gate (*pvt->free_res)(pvt->res); 362*0Sstevel@tonic-gate } 363*0Sstevel@tonic-gate 364*0Sstevel@tonic-gate pvt->res = res; 365*0Sstevel@tonic-gate pvt->free_res = free_res; 366*0Sstevel@tonic-gate } 367*0Sstevel@tonic-gate 368*0Sstevel@tonic-gate static int 369*0Sstevel@tonic-gate init(struct irs_nw *this) { 370*0Sstevel@tonic-gate struct pvt *pvt = (struct pvt *)this->private; 371*0Sstevel@tonic-gate 372*0Sstevel@tonic-gate if (!pvt->res && !nw_res_get(this)) 373*0Sstevel@tonic-gate return (-1); 374*0Sstevel@tonic-gate if (((pvt->res->options & RES_INIT) == 0) && 375*0Sstevel@tonic-gate res_ninit(pvt->res) == -1) 376*0Sstevel@tonic-gate return (-1); 377*0Sstevel@tonic-gate return (0); 378*0Sstevel@tonic-gate } 379