xref: /freebsd/sys/geom/geom_dump.c (revision 316aed030e14b02847d5e4fee15fd297c5b1dc5e)
1dd84a43cSPoul-Henning Kamp /*-
2dd84a43cSPoul-Henning Kamp  * Copyright (c) 2002 Poul-Henning Kamp
3dd84a43cSPoul-Henning Kamp  * Copyright (c) 2002 Networks Associates Technology, Inc.
4dd84a43cSPoul-Henning Kamp  * All rights reserved.
5dd84a43cSPoul-Henning Kamp  *
6dd84a43cSPoul-Henning Kamp  * This software was developed for the FreeBSD Project by Poul-Henning Kamp
7dd84a43cSPoul-Henning Kamp  * and NAI Labs, the Security Research Division of Network Associates, Inc.
8dd84a43cSPoul-Henning Kamp  * under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the
9dd84a43cSPoul-Henning Kamp  * DARPA CHATS research program.
10dd84a43cSPoul-Henning Kamp  *
11dd84a43cSPoul-Henning Kamp  * Redistribution and use in source and binary forms, with or without
12dd84a43cSPoul-Henning Kamp  * modification, are permitted provided that the following conditions
13dd84a43cSPoul-Henning Kamp  * are met:
14dd84a43cSPoul-Henning Kamp  * 1. Redistributions of source code must retain the above copyright
15dd84a43cSPoul-Henning Kamp  *    notice, this list of conditions and the following disclaimer.
16dd84a43cSPoul-Henning Kamp  * 2. Redistributions in binary form must reproduce the above copyright
17dd84a43cSPoul-Henning Kamp  *    notice, this list of conditions and the following disclaimer in the
18dd84a43cSPoul-Henning Kamp  *    documentation and/or other materials provided with the distribution.
19dd84a43cSPoul-Henning Kamp  * 3. The names of the authors may not be used to endorse or promote
20dd84a43cSPoul-Henning Kamp  *    products derived from this software without specific prior written
21dd84a43cSPoul-Henning Kamp  *    permission.
22dd84a43cSPoul-Henning Kamp  *
23dd84a43cSPoul-Henning Kamp  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
24dd84a43cSPoul-Henning Kamp  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25dd84a43cSPoul-Henning Kamp  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26dd84a43cSPoul-Henning Kamp  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
27dd84a43cSPoul-Henning Kamp  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28dd84a43cSPoul-Henning Kamp  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29dd84a43cSPoul-Henning Kamp  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30dd84a43cSPoul-Henning Kamp  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31dd84a43cSPoul-Henning Kamp  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32dd84a43cSPoul-Henning Kamp  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33dd84a43cSPoul-Henning Kamp  * SUCH DAMAGE.
34dd84a43cSPoul-Henning Kamp  *
35dd84a43cSPoul-Henning Kamp  * $FreeBSD$
36dd84a43cSPoul-Henning Kamp  */
37dd84a43cSPoul-Henning Kamp 
38dd84a43cSPoul-Henning Kamp 
39dd84a43cSPoul-Henning Kamp #include <sys/param.h>
40dd84a43cSPoul-Henning Kamp #include <sys/sbuf.h>
41dd84a43cSPoul-Henning Kamp #ifndef _KERNEL
42dd84a43cSPoul-Henning Kamp #include <stdio.h>
435274973aSPoul-Henning Kamp #include <string.h>
44dd84a43cSPoul-Henning Kamp #include <unistd.h>
45dd84a43cSPoul-Henning Kamp #include <stdlib.h>
46dd84a43cSPoul-Henning Kamp #include <err.h>
47dd84a43cSPoul-Henning Kamp #else
48dd84a43cSPoul-Henning Kamp #include <sys/systm.h>
49dd84a43cSPoul-Henning Kamp #include <sys/malloc.h>
50dd84a43cSPoul-Henning Kamp #endif
51dd84a43cSPoul-Henning Kamp #include <machine/stdarg.h>
52dd84a43cSPoul-Henning Kamp 
53dd84a43cSPoul-Henning Kamp #include <geom/geom.h>
54b1876192SPoul-Henning Kamp #include <geom/geom_int.h>
55dd84a43cSPoul-Henning Kamp 
56dd84a43cSPoul-Henning Kamp 
57dd84a43cSPoul-Henning Kamp static void
58dd84a43cSPoul-Henning Kamp g_confdot_consumer(struct sbuf *sb, struct g_consumer *cp)
59dd84a43cSPoul-Henning Kamp {
60dd84a43cSPoul-Henning Kamp 
61801bb689SPoul-Henning Kamp 	sbuf_printf(sb, "z%p [label=\"r%dw%de%d\"];\n",
62801bb689SPoul-Henning Kamp 	    cp, cp->acr, cp->acw, cp->ace);
63dd84a43cSPoul-Henning Kamp 	if (cp->provider)
64dd84a43cSPoul-Henning Kamp 		sbuf_printf(sb, "z%p -> z%p;\n", cp, cp->provider);
65dd84a43cSPoul-Henning Kamp }
66dd84a43cSPoul-Henning Kamp 
67dd84a43cSPoul-Henning Kamp static void
68dd84a43cSPoul-Henning Kamp g_confdot_provider(struct sbuf *sb, struct g_provider *pp)
69dd84a43cSPoul-Henning Kamp {
70dd84a43cSPoul-Henning Kamp 
71dd84a43cSPoul-Henning Kamp 	sbuf_printf(sb, "z%p [shape=hexagon,label=\"%s\\nr%dw%de%d\\nerr#%d\"];\n",
72dd84a43cSPoul-Henning Kamp 	    pp, pp->name, pp->acr, pp->acw, pp->ace, pp->error);
73dd84a43cSPoul-Henning Kamp }
74dd84a43cSPoul-Henning Kamp 
75dd84a43cSPoul-Henning Kamp static void
76dd84a43cSPoul-Henning Kamp g_confdot_geom(struct sbuf *sb, struct g_geom *gp)
77dd84a43cSPoul-Henning Kamp {
78dd84a43cSPoul-Henning Kamp 	struct g_consumer *cp;
79dd84a43cSPoul-Henning Kamp 	struct g_provider *pp;
80dd84a43cSPoul-Henning Kamp 
81dd84a43cSPoul-Henning Kamp 	sbuf_printf(sb, "z%p [shape=box,label=\"%s\\n%s\\nr#%d\"];\n",
82e805e8f0SPoul-Henning Kamp 	    gp, gp->class->name, gp->name, gp->rank);
83dd84a43cSPoul-Henning Kamp 	LIST_FOREACH(cp, &gp->consumer, consumer) {
84dd84a43cSPoul-Henning Kamp 		g_confdot_consumer(sb, cp);
85dd84a43cSPoul-Henning Kamp 		sbuf_printf(sb, "z%p -> z%p;\n", gp, cp);
86dd84a43cSPoul-Henning Kamp 	}
87dd84a43cSPoul-Henning Kamp 
88dd84a43cSPoul-Henning Kamp 	LIST_FOREACH(pp, &gp->provider, provider) {
89dd84a43cSPoul-Henning Kamp 		g_confdot_provider(sb, pp);
90dd84a43cSPoul-Henning Kamp 		sbuf_printf(sb, "z%p -> z%p;\n", pp, gp);
91dd84a43cSPoul-Henning Kamp 	}
92dd84a43cSPoul-Henning Kamp }
93dd84a43cSPoul-Henning Kamp 
94dd84a43cSPoul-Henning Kamp static void
95e805e8f0SPoul-Henning Kamp g_confdot_class(struct sbuf *sb, struct g_class *mp)
96dd84a43cSPoul-Henning Kamp {
97dd84a43cSPoul-Henning Kamp 	struct g_geom *gp;
98dd84a43cSPoul-Henning Kamp 
99dd84a43cSPoul-Henning Kamp 	LIST_FOREACH(gp, &mp->geom, geom)
100dd84a43cSPoul-Henning Kamp 		g_confdot_geom(sb, gp);
101dd84a43cSPoul-Henning Kamp }
102dd84a43cSPoul-Henning Kamp 
1032874f1cfSPoul-Henning Kamp void
104316aed03SPoul-Henning Kamp g_confdot(void *p, int flag )
105dd84a43cSPoul-Henning Kamp {
106e805e8f0SPoul-Henning Kamp 	struct g_class *mp;
107dd84a43cSPoul-Henning Kamp 	struct sbuf *sb;
108dd84a43cSPoul-Henning Kamp 
109316aed03SPoul-Henning Kamp 	KASSERT(flag != EV_CANCEL, ("g_confdot was cancelled"));
1102874f1cfSPoul-Henning Kamp 	sb = p;
1112874f1cfSPoul-Henning Kamp 	g_topology_assert();
112dd84a43cSPoul-Henning Kamp 	sbuf_printf(sb, "digraph geom {\n");
1132654e1fcSPoul-Henning Kamp 	LIST_FOREACH(mp, &g_classes, class)
114e805e8f0SPoul-Henning Kamp 		g_confdot_class(sb, mp);
115dd84a43cSPoul-Henning Kamp 	sbuf_printf(sb, "};\n");
116dd84a43cSPoul-Henning Kamp 	sbuf_finish(sb);
1172874f1cfSPoul-Henning Kamp 	wakeup(p);
118dd84a43cSPoul-Henning Kamp }
119dd84a43cSPoul-Henning Kamp 
120d518e539SPoul-Henning Kamp static void
121d518e539SPoul-Henning Kamp g_conftxt_geom(struct sbuf *sb, struct g_geom *gp, int level)
122d518e539SPoul-Henning Kamp {
123d518e539SPoul-Henning Kamp 	struct g_provider *pp;
124d518e539SPoul-Henning Kamp 	struct g_consumer *cp;
125d518e539SPoul-Henning Kamp 
126d518e539SPoul-Henning Kamp 	LIST_FOREACH(pp, &gp->provider, provider) {
127d518e539SPoul-Henning Kamp 		sbuf_printf(sb, "%d %s %s %ju %u", level, gp->class->name,
128d518e539SPoul-Henning Kamp 		    pp->name, (uintmax_t)pp->mediasize, pp->sectorsize);
12982e5a9a3SPoul-Henning Kamp 		if (gp->dumpconf != NULL)
130d518e539SPoul-Henning Kamp 			gp->dumpconf(sb, NULL, gp, NULL, pp);
131d518e539SPoul-Henning Kamp 		sbuf_printf(sb, "\n");
132d518e539SPoul-Henning Kamp 		LIST_FOREACH(cp, &pp->consumers, consumers)
133d518e539SPoul-Henning Kamp 			g_conftxt_geom(sb, cp->geom, level + 1);
134d518e539SPoul-Henning Kamp 	}
135d518e539SPoul-Henning Kamp }
136d518e539SPoul-Henning Kamp 
137d518e539SPoul-Henning Kamp static void
138d518e539SPoul-Henning Kamp g_conftxt_class(struct sbuf *sb, struct g_class *mp)
139d518e539SPoul-Henning Kamp {
140d518e539SPoul-Henning Kamp 	struct g_geom *gp;
141d518e539SPoul-Henning Kamp 
142d518e539SPoul-Henning Kamp 	LIST_FOREACH(gp, &mp->geom, geom)
143d518e539SPoul-Henning Kamp 		g_conftxt_geom(sb, gp, 0);
144d518e539SPoul-Henning Kamp }
145d518e539SPoul-Henning Kamp 
146d518e539SPoul-Henning Kamp void
147316aed03SPoul-Henning Kamp g_conftxt(void *p, int flag)
148d518e539SPoul-Henning Kamp {
149d518e539SPoul-Henning Kamp 	struct g_class *mp;
150d518e539SPoul-Henning Kamp 	struct sbuf *sb;
151d518e539SPoul-Henning Kamp 
152316aed03SPoul-Henning Kamp 	KASSERT(flag != EV_CANCEL, ("g_conftxt was cancelled"));
153d518e539SPoul-Henning Kamp 	sb = p;
154d518e539SPoul-Henning Kamp 	g_topology_assert();
155d518e539SPoul-Henning Kamp 	LIST_FOREACH(mp, &g_classes, class)
156d518e539SPoul-Henning Kamp 		if (!strcmp(mp->name, "DISK"))
157d518e539SPoul-Henning Kamp 			break;
158d518e539SPoul-Henning Kamp 	if (mp != NULL)
159d518e539SPoul-Henning Kamp 		g_conftxt_class(sb, mp);
160d518e539SPoul-Henning Kamp 	sbuf_finish(sb);
161d518e539SPoul-Henning Kamp 	wakeup(p);
162d518e539SPoul-Henning Kamp }
163d518e539SPoul-Henning Kamp 
164dd84a43cSPoul-Henning Kamp 
165dd84a43cSPoul-Henning Kamp static void
166dd84a43cSPoul-Henning Kamp g_conf_consumer(struct sbuf *sb, struct g_consumer *cp)
167dd84a43cSPoul-Henning Kamp {
168dd84a43cSPoul-Henning Kamp 
169f6424ee5SPoul-Henning Kamp 	sbuf_printf(sb, "\t<consumer id=\"%p\">\n", cp);
170f6424ee5SPoul-Henning Kamp 	sbuf_printf(sb, "\t  <geom ref=\"%p\"/>\n", cp->geom);
171f6424ee5SPoul-Henning Kamp 	if (cp->provider != NULL)
172f6424ee5SPoul-Henning Kamp 		sbuf_printf(sb, "\t  <provider ref=\"%p\"/>\n", cp->provider);
173dd84a43cSPoul-Henning Kamp 	sbuf_printf(sb, "\t  <mode>r%dw%de%d</mode>\n",
174dd84a43cSPoul-Henning Kamp 	    cp->acr, cp->acw, cp->ace);
17582e5a9a3SPoul-Henning Kamp 	if (cp->geom->dumpconf != NULL) {
176dd84a43cSPoul-Henning Kamp 		sbuf_printf(sb, "\t  <config>\n");
177dd84a43cSPoul-Henning Kamp 		cp->geom->dumpconf(sb, "\t    ", cp->geom, cp, NULL);
178dd84a43cSPoul-Henning Kamp 		sbuf_printf(sb, "\t  </config>\n");
179dd84a43cSPoul-Henning Kamp 	}
180dd84a43cSPoul-Henning Kamp 	sbuf_printf(sb, "\t</consumer>\n");
181dd84a43cSPoul-Henning Kamp }
182dd84a43cSPoul-Henning Kamp 
183dd84a43cSPoul-Henning Kamp static void
184dd84a43cSPoul-Henning Kamp g_conf_provider(struct sbuf *sb, struct g_provider *pp)
185dd84a43cSPoul-Henning Kamp {
186dd84a43cSPoul-Henning Kamp 
187f6424ee5SPoul-Henning Kamp 	sbuf_printf(sb, "\t<provider id=\"%p\">\n", pp);
188f6424ee5SPoul-Henning Kamp 	sbuf_printf(sb, "\t  <geom ref=\"%p\"/>\n", pp->geom);
189dd84a43cSPoul-Henning Kamp 	sbuf_printf(sb, "\t  <mode>r%dw%de%d</mode>\n",
190dd84a43cSPoul-Henning Kamp 	    pp->acr, pp->acw, pp->ace);
191dd84a43cSPoul-Henning Kamp 	sbuf_printf(sb, "\t  <name>%s</name>\n", pp->name);
19214ac6812SPoul-Henning Kamp 	sbuf_printf(sb, "\t  <mediasize>%jd</mediasize>\n",
19314ac6812SPoul-Henning Kamp 	    (intmax_t)pp->mediasize);
19448444d62SPoul-Henning Kamp 	sbuf_printf(sb, "\t  <sectorsize>%u</sectorsize>\n", pp->sectorsize);
19582e5a9a3SPoul-Henning Kamp 	if (pp->geom->dumpconf != NULL) {
196dd84a43cSPoul-Henning Kamp 		sbuf_printf(sb, "\t  <config>\n");
197dd84a43cSPoul-Henning Kamp 		pp->geom->dumpconf(sb, "\t    ", pp->geom, NULL, pp);
198dd84a43cSPoul-Henning Kamp 		sbuf_printf(sb, "\t  </config>\n");
199dd84a43cSPoul-Henning Kamp 	}
200dd84a43cSPoul-Henning Kamp 	sbuf_printf(sb, "\t</provider>\n");
201dd84a43cSPoul-Henning Kamp }
202dd84a43cSPoul-Henning Kamp 
203dd84a43cSPoul-Henning Kamp 
204dd84a43cSPoul-Henning Kamp static void
205dd84a43cSPoul-Henning Kamp g_conf_geom(struct sbuf *sb, struct g_geom *gp, struct g_provider *pp, struct g_consumer *cp)
206dd84a43cSPoul-Henning Kamp {
207dd84a43cSPoul-Henning Kamp 	struct g_consumer *cp2;
208dd84a43cSPoul-Henning Kamp 	struct g_provider *pp2;
209dd84a43cSPoul-Henning Kamp 
210f6424ee5SPoul-Henning Kamp 	sbuf_printf(sb, "    <geom id=\"%p\">\n", gp);
211f6424ee5SPoul-Henning Kamp 	sbuf_printf(sb, "      <class ref=\"%p\"/>\n", gp->class);
212dd84a43cSPoul-Henning Kamp 	sbuf_printf(sb, "      <name>%s</name>\n", gp->name);
213dd84a43cSPoul-Henning Kamp 	sbuf_printf(sb, "      <rank>%d</rank>\n", gp->rank);
21482e5a9a3SPoul-Henning Kamp 	if (gp->dumpconf != NULL) {
215dd84a43cSPoul-Henning Kamp 		sbuf_printf(sb, "      <config>\n");
216dd84a43cSPoul-Henning Kamp 		gp->dumpconf(sb, "\t", gp, NULL, NULL);
217dd84a43cSPoul-Henning Kamp 		sbuf_printf(sb, "      </config>\n");
218dd84a43cSPoul-Henning Kamp 	}
219dd84a43cSPoul-Henning Kamp 	LIST_FOREACH(cp2, &gp->consumer, consumer) {
220dd84a43cSPoul-Henning Kamp 		if (cp != NULL && cp != cp2)
221dd84a43cSPoul-Henning Kamp 			continue;
222dd84a43cSPoul-Henning Kamp 		g_conf_consumer(sb, cp2);
223dd84a43cSPoul-Henning Kamp 	}
224dd84a43cSPoul-Henning Kamp 
225dd84a43cSPoul-Henning Kamp 	LIST_FOREACH(pp2, &gp->provider, provider) {
226dd84a43cSPoul-Henning Kamp 		if (pp != NULL && pp != pp2)
227dd84a43cSPoul-Henning Kamp 			continue;
228dd84a43cSPoul-Henning Kamp 		g_conf_provider(sb, pp2);
229dd84a43cSPoul-Henning Kamp 	}
230dd84a43cSPoul-Henning Kamp 	sbuf_printf(sb, "    </geom>\n");
231dd84a43cSPoul-Henning Kamp }
232dd84a43cSPoul-Henning Kamp 
233dd84a43cSPoul-Henning Kamp static void
234e805e8f0SPoul-Henning Kamp g_conf_class(struct sbuf *sb, struct g_class *mp, struct g_geom *gp, struct g_provider *pp, struct g_consumer *cp)
235dd84a43cSPoul-Henning Kamp {
236dd84a43cSPoul-Henning Kamp 	struct g_geom *gp2;
237dd84a43cSPoul-Henning Kamp 
238f6424ee5SPoul-Henning Kamp 	sbuf_printf(sb, "  <class id=\"%p\">\n", mp);
239dd84a43cSPoul-Henning Kamp 	sbuf_printf(sb, "    <name>%s</name>\n", mp->name);
240dd84a43cSPoul-Henning Kamp 	LIST_FOREACH(gp2, &mp->geom, geom) {
241dd84a43cSPoul-Henning Kamp 		if (gp != NULL && gp != gp2)
242dd84a43cSPoul-Henning Kamp 			continue;
243dd84a43cSPoul-Henning Kamp 		g_conf_geom(sb, gp2, pp, cp);
244dd84a43cSPoul-Henning Kamp 	}
245e805e8f0SPoul-Henning Kamp 	sbuf_printf(sb, "  </class>\n");
246dd84a43cSPoul-Henning Kamp }
247dd84a43cSPoul-Henning Kamp 
2482874f1cfSPoul-Henning Kamp void
2492874f1cfSPoul-Henning Kamp g_conf_specific(struct sbuf *sb, struct g_class *mp, struct g_geom *gp, struct g_provider *pp, struct g_consumer *cp)
250dd84a43cSPoul-Henning Kamp {
251e805e8f0SPoul-Henning Kamp 	struct g_class *mp2;
252dd84a43cSPoul-Henning Kamp 
2532874f1cfSPoul-Henning Kamp 	g_topology_assert();
254dd84a43cSPoul-Henning Kamp 	sbuf_printf(sb, "<mesh>\n");
25550cbb62eSPoul-Henning Kamp #ifndef _KERNEL
25650cbb62eSPoul-Henning Kamp 	sbuf_printf(sb, "  <FreeBSD>%cFreeBSD%c</FreeBSD>\n", '$', '$');
25750cbb62eSPoul-Henning Kamp #endif
2582654e1fcSPoul-Henning Kamp 	LIST_FOREACH(mp2, &g_classes, class) {
259dd84a43cSPoul-Henning Kamp 		if (mp != NULL && mp != mp2)
260dd84a43cSPoul-Henning Kamp 			continue;
261e805e8f0SPoul-Henning Kamp 		g_conf_class(sb, mp2, gp, pp, cp);
262dd84a43cSPoul-Henning Kamp 	}
263dd84a43cSPoul-Henning Kamp 	sbuf_printf(sb, "</mesh>\n");
264dd84a43cSPoul-Henning Kamp 	sbuf_finish(sb);
265dd84a43cSPoul-Henning Kamp }
266dd84a43cSPoul-Henning Kamp 
2672874f1cfSPoul-Henning Kamp void
268316aed03SPoul-Henning Kamp g_confxml(void *p, int flag)
269dd84a43cSPoul-Henning Kamp {
270dd84a43cSPoul-Henning Kamp 
271316aed03SPoul-Henning Kamp 	KASSERT(flag != EV_CANCEL, ("g_confxml was cancelled"));
272d0e17c1bSPoul-Henning Kamp 	g_topology_assert();
2732874f1cfSPoul-Henning Kamp 	g_conf_specific(p, NULL, NULL, NULL, NULL);
2742874f1cfSPoul-Henning Kamp 	wakeup(p);
275dd84a43cSPoul-Henning Kamp }
276dd84a43cSPoul-Henning Kamp 
277dd84a43cSPoul-Henning Kamp void
2780f9d3dbaSPoul-Henning Kamp g_trace(int level, const char *fmt, ...)
279dd84a43cSPoul-Henning Kamp {
280dd84a43cSPoul-Henning Kamp 	va_list ap;
281dd84a43cSPoul-Henning Kamp 
2827d590cc4SPoul-Henning Kamp 	g_sanity(NULL);
283dd84a43cSPoul-Henning Kamp 	if (!(g_debugflags & level))
284dd84a43cSPoul-Henning Kamp 		return;
285dd84a43cSPoul-Henning Kamp 	va_start(ap, fmt);
28672840432SPoul-Henning Kamp 	vprintf(fmt, ap);
28772840432SPoul-Henning Kamp 	printf("\n");
288dd84a43cSPoul-Henning Kamp }
289dd84a43cSPoul-Henning Kamp 
290dd84a43cSPoul-Henning Kamp void
291dd84a43cSPoul-Henning Kamp g_hexdump(void *ptr, int length)
292dd84a43cSPoul-Henning Kamp {
293dd84a43cSPoul-Henning Kamp 	int i, j, k;
294dd84a43cSPoul-Henning Kamp 	unsigned char *cp;
295dd84a43cSPoul-Henning Kamp 
296dd84a43cSPoul-Henning Kamp 	cp = ptr;
297dd84a43cSPoul-Henning Kamp 	for (i = 0; i < length; i+= 16) {
298dd84a43cSPoul-Henning Kamp 		printf("%04x  ", i);
299dd84a43cSPoul-Henning Kamp 		for (j = 0; j < 16; j++) {
300dd84a43cSPoul-Henning Kamp 			k = i + j;
301dd84a43cSPoul-Henning Kamp 			if (k < length)
302dd84a43cSPoul-Henning Kamp 				printf(" %02x", cp[k]);
303dd84a43cSPoul-Henning Kamp 			else
304dd84a43cSPoul-Henning Kamp 				printf("   ");
305dd84a43cSPoul-Henning Kamp 		}
306dd84a43cSPoul-Henning Kamp 		printf("  |");
307dd84a43cSPoul-Henning Kamp 		for (j = 0; j < 16; j++) {
308dd84a43cSPoul-Henning Kamp 			k = i + j;
309dd84a43cSPoul-Henning Kamp 			if (k >= length)
310dd84a43cSPoul-Henning Kamp 				printf(" ");
311dd84a43cSPoul-Henning Kamp 			else if (cp[k] >= ' ' && cp[k] <= '~')
312dd84a43cSPoul-Henning Kamp 				printf("%c", cp[k]);
313dd84a43cSPoul-Henning Kamp 			else
314dd84a43cSPoul-Henning Kamp 				printf(".");
315dd84a43cSPoul-Henning Kamp 		}
316dd84a43cSPoul-Henning Kamp 		printf("|\n");
317dd84a43cSPoul-Henning Kamp 	}
318dd84a43cSPoul-Henning Kamp }
319dd84a43cSPoul-Henning Kamp 
320