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dev_net.c (308719) dev_net.c (328889)
1/* $NetBSD: dev_net.c,v 1.23 2008/04/28 20:24:06 martin Exp $ */
2
3/*-
4 * Copyright (c) 1997 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Gordon W. Ross.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#include <sys/cdefs.h>
1/* $NetBSD: dev_net.c,v 1.23 2008/04/28 20:24:06 martin Exp $ */
2
3/*-
4 * Copyright (c) 1997 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Gordon W. Ross.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#include <sys/cdefs.h>
33__FBSDID("$FreeBSD: stable/11/sys/boot/common/dev_net.c 308719 2016-11-16 07:01:52Z bapt $");
33__FBSDID("$FreeBSD: stable/11/sys/boot/common/dev_net.c 328889 2018-02-05 17:01:18Z kevans $");
34
35/*-
36 * This module implements a "raw device" interface suitable for
37 * use by the stand-alone I/O library NFS code. This interface
38 * does not support any "block" access, and exists only for the
39 * purpose of initializing the network interface, getting boot
40 * parameters, and performing the NFS mount.
41 *
42 * At open time, this does:
43 *
44 * find interface - netif_open()
45 * RARP for IP address - rarp_getipaddress()
46 * RPC/bootparams - callrpc(d, RPC_BOOTPARAMS, ...)
47 * RPC/mountd - nfs_mount(sock, ip, path)
48 *
49 * the root file handle from mountd is saved in a global
50 * for use by the NFS open code (NFS/lookup).
51 */
52
53#include <machine/stdarg.h>
54#include <sys/param.h>
55#include <sys/socket.h>
56#include <net/if.h>
57#include <netinet/in.h>
58#include <netinet/in_systm.h>
59
60#include <stand.h>
61#include <string.h>
62#include <net.h>
63#include <netif.h>
64#include <bootp.h>
65#include <bootparam.h>
66
67#include "dev_net.h"
68#include "bootstrap.h"
69
70#ifdef NETIF_DEBUG
71int debug = 0;
72#endif
73
74static char *netdev_name;
75static int netdev_sock = -1;
76static int netdev_opens;
77
78static int net_init(void);
79static int net_open(struct open_file *, ...);
80static int net_close(struct open_file *);
81static void net_cleanup(void);
82static int net_strategy();
34
35/*-
36 * This module implements a "raw device" interface suitable for
37 * use by the stand-alone I/O library NFS code. This interface
38 * does not support any "block" access, and exists only for the
39 * purpose of initializing the network interface, getting boot
40 * parameters, and performing the NFS mount.
41 *
42 * At open time, this does:
43 *
44 * find interface - netif_open()
45 * RARP for IP address - rarp_getipaddress()
46 * RPC/bootparams - callrpc(d, RPC_BOOTPARAMS, ...)
47 * RPC/mountd - nfs_mount(sock, ip, path)
48 *
49 * the root file handle from mountd is saved in a global
50 * for use by the NFS open code (NFS/lookup).
51 */
52
53#include <machine/stdarg.h>
54#include <sys/param.h>
55#include <sys/socket.h>
56#include <net/if.h>
57#include <netinet/in.h>
58#include <netinet/in_systm.h>
59
60#include <stand.h>
61#include <string.h>
62#include <net.h>
63#include <netif.h>
64#include <bootp.h>
65#include <bootparam.h>
66
67#include "dev_net.h"
68#include "bootstrap.h"
69
70#ifdef NETIF_DEBUG
71int debug = 0;
72#endif
73
74static char *netdev_name;
75static int netdev_sock = -1;
76static int netdev_opens;
77
78static int net_init(void);
79static int net_open(struct open_file *, ...);
80static int net_close(struct open_file *);
81static void net_cleanup(void);
82static int net_strategy();
83static void net_print(int);
83static int net_print(int);
84
85static int net_getparams(int sock);
86
87struct devsw netdev = {
88 "net",
89 DEVT_NET,
90 net_init,
91 net_strategy,
92 net_open,
93 net_close,
94 noioctl,
95 net_print,
96 net_cleanup
97};
98
99static int
100net_init(void)
101{
102
103 return (0);
104}
105
106/*
107 * Called by devopen after it sets f->f_dev to our devsw entry.
108 * This opens the low-level device and sets f->f_devdata.
109 * This is declared with variable arguments...
110 */
111static int
112net_open(struct open_file *f, ...)
113{
114 struct iodesc *d;
115 va_list args;
116 char *devname; /* Device part of file name (or NULL). */
117 int error = 0;
118
119 va_start(args, f);
120 devname = va_arg(args, char*);
121 va_end(args);
122
123 /* Before opening another interface, close the previous one first. */
124 if (netdev_sock >= 0 && strcmp(devname, netdev_name) != 0)
125 net_cleanup();
126
127 /* On first open, do netif open, mount, etc. */
128 if (netdev_opens == 0) {
129 /* Find network interface. */
130 if (netdev_sock < 0) {
131 netdev_sock = netif_open(devname);
132 if (netdev_sock < 0) {
133 printf("net_open: netif_open() failed\n");
134 return (ENXIO);
135 }
136 netdev_name = strdup(devname);
137#ifdef NETIF_DEBUG
138 if (debug)
139 printf("net_open: netif_open() succeeded\n");
140#endif
141 }
142 /*
143 * If network params were not set by netif_open(), try to get
144 * them via bootp, rarp, etc.
145 */
146 if (rootip.s_addr == 0) {
147 /* Get root IP address, and path, etc. */
148 error = net_getparams(netdev_sock);
149 if (error) {
150 /* getparams makes its own noise */
151 free(netdev_name);
152 netif_close(netdev_sock);
153 netdev_sock = -1;
154 return (error);
155 }
156 }
157 /*
158 * Set the variables required by the kernel's nfs_diskless
159 * mechanism. This is the minimum set of variables required to
160 * mount a root filesystem without needing to obtain additional
161 * info from bootp or other sources.
162 */
163 d = socktodesc(netdev_sock);
164 setenv("boot.netif.hwaddr", ether_sprintf(d->myea), 1);
165 setenv("boot.netif.ip", inet_ntoa(myip), 1);
166 setenv("boot.netif.netmask", intoa(netmask), 1);
167 setenv("boot.netif.gateway", inet_ntoa(gateip), 1);
168 setenv("boot.netif.server", inet_ntoa(rootip), 1);
169 if (netproto == NET_TFTP) {
170 setenv("boot.tftproot.server", inet_ntoa(rootip), 1);
171 setenv("boot.tftproot.path", rootpath, 1);
172 } else if (netproto == NET_NFS) {
173 setenv("boot.nfsroot.server", inet_ntoa(rootip), 1);
174 setenv("boot.nfsroot.path", rootpath, 1);
175 }
176 if (intf_mtu != 0) {
177 char mtu[16];
178 sprintf(mtu, "%u", intf_mtu);
179 setenv("boot.netif.mtu", mtu, 1);
180 }
181
182 }
183 netdev_opens++;
184 f->f_devdata = &netdev_sock;
185 return (error);
186}
187
188static int
189net_close(struct open_file *f)
190{
191
192#ifdef NETIF_DEBUG
193 if (debug)
194 printf("net_close: opens=%d\n", netdev_opens);
195#endif
196
197 f->f_devdata = NULL;
198
199 return (0);
200}
201
202static void
203net_cleanup(void)
204{
205
206 if (netdev_sock >= 0) {
207#ifdef NETIF_DEBUG
208 if (debug)
209 printf("net_cleanup: calling netif_close()\n");
210#endif
211 rootip.s_addr = 0;
212 free(netdev_name);
213 netif_close(netdev_sock);
214 netdev_sock = -1;
215 }
216}
217
218static int
219net_strategy()
220{
221
222 return (EIO);
223}
224
225#define SUPPORT_BOOTP
226
227/*
228 * Get info for NFS boot: our IP address, our hostname,
229 * server IP address, and our root path on the server.
230 * There are two ways to do this: The old, Sun way,
231 * and the more modern, BOOTP way. (RFC951, RFC1048)
232 *
233 * The default is to use the Sun bootparams RPC
234 * (because that is what the kernel will do).
235 * MD code can make try_bootp initialied data,
236 * which will override this common definition.
237 */
238#ifdef SUPPORT_BOOTP
239int try_bootp = 1;
240#endif
241
242extern n_long ip_convertaddr(char *p);
243
244static int
245net_getparams(int sock)
246{
247 char buf[MAXHOSTNAMELEN];
248 n_long rootaddr, smask;
249
250#ifdef SUPPORT_BOOTP
251 /*
252 * Try to get boot info using BOOTP. If we succeed, then
253 * the server IP address, gateway, and root path will all
254 * be initialized. If any remain uninitialized, we will
255 * use RARP and RPC/bootparam (the Sun way) to get them.
256 */
257 if (try_bootp)
258 bootp(sock, BOOTP_NONE);
259 if (myip.s_addr != 0)
260 goto exit;
261#ifdef NETIF_DEBUG
262 if (debug)
263 printf("net_open: BOOTP failed, trying RARP/RPC...\n");
264#endif
265#endif
266
267 /*
268 * Use RARP to get our IP address. This also sets our
269 * netmask to the "natural" default for our address.
270 */
271 if (rarp_getipaddress(sock)) {
272 printf("net_open: RARP failed\n");
273 return (EIO);
274 }
275 printf("net_open: client addr: %s\n", inet_ntoa(myip));
276
277 /* Get our hostname, server IP address, gateway. */
278 if (bp_whoami(sock)) {
279 printf("net_open: bootparam/whoami RPC failed\n");
280 return (EIO);
281 }
282#ifdef NETIF_DEBUG
283 if (debug)
284 printf("net_open: client name: %s\n", hostname);
285#endif
286
287 /*
288 * Ignore the gateway from whoami (unreliable).
289 * Use the "gateway" parameter instead.
290 */
291 smask = 0;
292 gateip.s_addr = 0;
293 if (bp_getfile(sock, "gateway", &gateip, buf) == 0) {
294 /* Got it! Parse the netmask. */
295 smask = ip_convertaddr(buf);
296 }
297 if (smask) {
298 netmask = smask;
299#ifdef NETIF_DEBUG
300 if (debug)
301 printf("net_open: subnet mask: %s\n", intoa(netmask));
302#endif
303 }
304#ifdef NETIF_DEBUG
305 if (gateip.s_addr && debug)
306 printf("net_open: net gateway: %s\n", inet_ntoa(gateip));
307#endif
308
309 /* Get the root server and pathname. */
310 if (bp_getfile(sock, "root", &rootip, rootpath)) {
311 printf("net_open: bootparam/getfile RPC failed\n");
312 return (EIO);
313 }
314exit:
315 if ((rootaddr = net_parse_rootpath()) != INADDR_NONE)
316 rootip.s_addr = rootaddr;
317
318#ifdef NETIF_DEBUG
319 if (debug) {
320 printf("net_open: server addr: %s\n", inet_ntoa(rootip));
321 printf("net_open: server path: %s\n", rootpath);
322 }
323#endif
324
325 return (0);
326}
327
84
85static int net_getparams(int sock);
86
87struct devsw netdev = {
88 "net",
89 DEVT_NET,
90 net_init,
91 net_strategy,
92 net_open,
93 net_close,
94 noioctl,
95 net_print,
96 net_cleanup
97};
98
99static int
100net_init(void)
101{
102
103 return (0);
104}
105
106/*
107 * Called by devopen after it sets f->f_dev to our devsw entry.
108 * This opens the low-level device and sets f->f_devdata.
109 * This is declared with variable arguments...
110 */
111static int
112net_open(struct open_file *f, ...)
113{
114 struct iodesc *d;
115 va_list args;
116 char *devname; /* Device part of file name (or NULL). */
117 int error = 0;
118
119 va_start(args, f);
120 devname = va_arg(args, char*);
121 va_end(args);
122
123 /* Before opening another interface, close the previous one first. */
124 if (netdev_sock >= 0 && strcmp(devname, netdev_name) != 0)
125 net_cleanup();
126
127 /* On first open, do netif open, mount, etc. */
128 if (netdev_opens == 0) {
129 /* Find network interface. */
130 if (netdev_sock < 0) {
131 netdev_sock = netif_open(devname);
132 if (netdev_sock < 0) {
133 printf("net_open: netif_open() failed\n");
134 return (ENXIO);
135 }
136 netdev_name = strdup(devname);
137#ifdef NETIF_DEBUG
138 if (debug)
139 printf("net_open: netif_open() succeeded\n");
140#endif
141 }
142 /*
143 * If network params were not set by netif_open(), try to get
144 * them via bootp, rarp, etc.
145 */
146 if (rootip.s_addr == 0) {
147 /* Get root IP address, and path, etc. */
148 error = net_getparams(netdev_sock);
149 if (error) {
150 /* getparams makes its own noise */
151 free(netdev_name);
152 netif_close(netdev_sock);
153 netdev_sock = -1;
154 return (error);
155 }
156 }
157 /*
158 * Set the variables required by the kernel's nfs_diskless
159 * mechanism. This is the minimum set of variables required to
160 * mount a root filesystem without needing to obtain additional
161 * info from bootp or other sources.
162 */
163 d = socktodesc(netdev_sock);
164 setenv("boot.netif.hwaddr", ether_sprintf(d->myea), 1);
165 setenv("boot.netif.ip", inet_ntoa(myip), 1);
166 setenv("boot.netif.netmask", intoa(netmask), 1);
167 setenv("boot.netif.gateway", inet_ntoa(gateip), 1);
168 setenv("boot.netif.server", inet_ntoa(rootip), 1);
169 if (netproto == NET_TFTP) {
170 setenv("boot.tftproot.server", inet_ntoa(rootip), 1);
171 setenv("boot.tftproot.path", rootpath, 1);
172 } else if (netproto == NET_NFS) {
173 setenv("boot.nfsroot.server", inet_ntoa(rootip), 1);
174 setenv("boot.nfsroot.path", rootpath, 1);
175 }
176 if (intf_mtu != 0) {
177 char mtu[16];
178 sprintf(mtu, "%u", intf_mtu);
179 setenv("boot.netif.mtu", mtu, 1);
180 }
181
182 }
183 netdev_opens++;
184 f->f_devdata = &netdev_sock;
185 return (error);
186}
187
188static int
189net_close(struct open_file *f)
190{
191
192#ifdef NETIF_DEBUG
193 if (debug)
194 printf("net_close: opens=%d\n", netdev_opens);
195#endif
196
197 f->f_devdata = NULL;
198
199 return (0);
200}
201
202static void
203net_cleanup(void)
204{
205
206 if (netdev_sock >= 0) {
207#ifdef NETIF_DEBUG
208 if (debug)
209 printf("net_cleanup: calling netif_close()\n");
210#endif
211 rootip.s_addr = 0;
212 free(netdev_name);
213 netif_close(netdev_sock);
214 netdev_sock = -1;
215 }
216}
217
218static int
219net_strategy()
220{
221
222 return (EIO);
223}
224
225#define SUPPORT_BOOTP
226
227/*
228 * Get info for NFS boot: our IP address, our hostname,
229 * server IP address, and our root path on the server.
230 * There are two ways to do this: The old, Sun way,
231 * and the more modern, BOOTP way. (RFC951, RFC1048)
232 *
233 * The default is to use the Sun bootparams RPC
234 * (because that is what the kernel will do).
235 * MD code can make try_bootp initialied data,
236 * which will override this common definition.
237 */
238#ifdef SUPPORT_BOOTP
239int try_bootp = 1;
240#endif
241
242extern n_long ip_convertaddr(char *p);
243
244static int
245net_getparams(int sock)
246{
247 char buf[MAXHOSTNAMELEN];
248 n_long rootaddr, smask;
249
250#ifdef SUPPORT_BOOTP
251 /*
252 * Try to get boot info using BOOTP. If we succeed, then
253 * the server IP address, gateway, and root path will all
254 * be initialized. If any remain uninitialized, we will
255 * use RARP and RPC/bootparam (the Sun way) to get them.
256 */
257 if (try_bootp)
258 bootp(sock, BOOTP_NONE);
259 if (myip.s_addr != 0)
260 goto exit;
261#ifdef NETIF_DEBUG
262 if (debug)
263 printf("net_open: BOOTP failed, trying RARP/RPC...\n");
264#endif
265#endif
266
267 /*
268 * Use RARP to get our IP address. This also sets our
269 * netmask to the "natural" default for our address.
270 */
271 if (rarp_getipaddress(sock)) {
272 printf("net_open: RARP failed\n");
273 return (EIO);
274 }
275 printf("net_open: client addr: %s\n", inet_ntoa(myip));
276
277 /* Get our hostname, server IP address, gateway. */
278 if (bp_whoami(sock)) {
279 printf("net_open: bootparam/whoami RPC failed\n");
280 return (EIO);
281 }
282#ifdef NETIF_DEBUG
283 if (debug)
284 printf("net_open: client name: %s\n", hostname);
285#endif
286
287 /*
288 * Ignore the gateway from whoami (unreliable).
289 * Use the "gateway" parameter instead.
290 */
291 smask = 0;
292 gateip.s_addr = 0;
293 if (bp_getfile(sock, "gateway", &gateip, buf) == 0) {
294 /* Got it! Parse the netmask. */
295 smask = ip_convertaddr(buf);
296 }
297 if (smask) {
298 netmask = smask;
299#ifdef NETIF_DEBUG
300 if (debug)
301 printf("net_open: subnet mask: %s\n", intoa(netmask));
302#endif
303 }
304#ifdef NETIF_DEBUG
305 if (gateip.s_addr && debug)
306 printf("net_open: net gateway: %s\n", inet_ntoa(gateip));
307#endif
308
309 /* Get the root server and pathname. */
310 if (bp_getfile(sock, "root", &rootip, rootpath)) {
311 printf("net_open: bootparam/getfile RPC failed\n");
312 return (EIO);
313 }
314exit:
315 if ((rootaddr = net_parse_rootpath()) != INADDR_NONE)
316 rootip.s_addr = rootaddr;
317
318#ifdef NETIF_DEBUG
319 if (debug) {
320 printf("net_open: server addr: %s\n", inet_ntoa(rootip));
321 printf("net_open: server path: %s\n", rootpath);
322 }
323#endif
324
325 return (0);
326}
327
328static void
328static int
329net_print(int verbose)
330{
331 struct netif_driver *drv;
332 int i, d, cnt;
329net_print(int verbose)
330{
331 struct netif_driver *drv;
332 int i, d, cnt;
333 int ret = 0;
333
334
335 if (netif_drivers[0] == NULL)
336 return (ret);
337
338 printf("%s devices:", netdev.dv_name);
339 if ((ret = pager_output("\n")) != 0)
340 return (ret);
341
334 cnt = 0;
335 for (d = 0; netif_drivers[d]; d++) {
336 drv = netif_drivers[d];
337 for (i = 0; i < drv->netif_nifs; i++) {
342 cnt = 0;
343 for (d = 0; netif_drivers[d]; d++) {
344 drv = netif_drivers[d];
345 for (i = 0; i < drv->netif_nifs; i++) {
338 printf("\t%s%d:", "net", cnt++);
339 if (verbose)
346 printf("\t%s%d:", netdev.dv_name, cnt++);
347 if (verbose) {
340 printf(" (%s%d)", drv->netif_bname,
341 drv->netif_ifs[i].dif_unit);
348 printf(" (%s%d)", drv->netif_bname,
349 drv->netif_ifs[i].dif_unit);
350 }
351 if ((ret = pager_output("\n")) != 0)
352 return (ret);
342 }
343 }
353 }
354 }
344 printf("\n");
355 return (ret);
345}
346
347/*
348 * Strip the server's address off of the rootpath if present and return it in
349 * network byte order, leaving just the pathname part in the global rootpath.
350 */
351uint32_t
352net_parse_rootpath()
353{
354 int i;
355 n_long addr = INADDR_NONE;
356
357 netproto = NET_NFS;
358
359 if (tftpip.s_addr != 0) {
360 netproto = NET_TFTP;
361 addr = tftpip.s_addr;
362 }
363
364 for (i = 0; rootpath[i] != '\0' && i < FNAME_SIZE; i++)
365 if (rootpath[i] == ':')
366 break;
367 if (i && i != FNAME_SIZE && rootpath[i] == ':') {
368 rootpath[i++] = '\0';
369 addr = inet_addr(&rootpath[0]);
370 bcopy(&rootpath[i], rootpath, strlen(&rootpath[i])+1);
371 }
372
373 return (addr);
374}
356}
357
358/*
359 * Strip the server's address off of the rootpath if present and return it in
360 * network byte order, leaving just the pathname part in the global rootpath.
361 */
362uint32_t
363net_parse_rootpath()
364{
365 int i;
366 n_long addr = INADDR_NONE;
367
368 netproto = NET_NFS;
369
370 if (tftpip.s_addr != 0) {
371 netproto = NET_TFTP;
372 addr = tftpip.s_addr;
373 }
374
375 for (i = 0; rootpath[i] != '\0' && i < FNAME_SIZE; i++)
376 if (rootpath[i] == ':')
377 break;
378 if (i && i != FNAME_SIZE && rootpath[i] == ':') {
379 rootpath[i++] = '\0';
380 addr = inet_addr(&rootpath[0]);
381 bcopy(&rootpath[i], rootpath, strlen(&rootpath[i])+1);
382 }
383
384 return (addr);
385}