xref: /freebsd/sys/geom/geom_dump.c (revision d32622aaeebd85b870f9e22daae8daa85e03d09f)
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 
3650b1faefSDavid E. O'Brien #include <sys/cdefs.h>
3750b1faefSDavid E. O'Brien __FBSDID("$FreeBSD$");
38dd84a43cSPoul-Henning Kamp 
39dd84a43cSPoul-Henning Kamp #include <sys/param.h>
40dd84a43cSPoul-Henning Kamp #include <sys/sbuf.h>
41dd84a43cSPoul-Henning Kamp #include <sys/systm.h>
42dd84a43cSPoul-Henning Kamp #include <sys/malloc.h>
43dd84a43cSPoul-Henning Kamp #include <machine/stdarg.h>
44dd84a43cSPoul-Henning Kamp 
45dd84a43cSPoul-Henning Kamp #include <geom/geom.h>
46b1876192SPoul-Henning Kamp #include <geom/geom_int.h>
47dd84a43cSPoul-Henning Kamp 
48dd84a43cSPoul-Henning Kamp 
49dd84a43cSPoul-Henning Kamp static void
50dd84a43cSPoul-Henning Kamp g_confdot_consumer(struct sbuf *sb, struct g_consumer *cp)
51dd84a43cSPoul-Henning Kamp {
52dd84a43cSPoul-Henning Kamp 
53801bb689SPoul-Henning Kamp 	sbuf_printf(sb, "z%p [label=\"r%dw%de%d\"];\n",
54801bb689SPoul-Henning Kamp 	    cp, cp->acr, cp->acw, cp->ace);
55dd84a43cSPoul-Henning Kamp 	if (cp->provider)
56dd84a43cSPoul-Henning Kamp 		sbuf_printf(sb, "z%p -> z%p;\n", cp, cp->provider);
57dd84a43cSPoul-Henning Kamp }
58dd84a43cSPoul-Henning Kamp 
59dd84a43cSPoul-Henning Kamp static void
60dd84a43cSPoul-Henning Kamp g_confdot_provider(struct sbuf *sb, struct g_provider *pp)
61dd84a43cSPoul-Henning Kamp {
62dd84a43cSPoul-Henning Kamp 
63dd84a43cSPoul-Henning Kamp 	sbuf_printf(sb, "z%p [shape=hexagon,label=\"%s\\nr%dw%de%d\\nerr#%d\"];\n",
64dd84a43cSPoul-Henning Kamp 	    pp, pp->name, pp->acr, pp->acw, pp->ace, pp->error);
65dd84a43cSPoul-Henning Kamp }
66dd84a43cSPoul-Henning Kamp 
67dd84a43cSPoul-Henning Kamp static void
68dd84a43cSPoul-Henning Kamp g_confdot_geom(struct sbuf *sb, struct g_geom *gp)
69dd84a43cSPoul-Henning Kamp {
70dd84a43cSPoul-Henning Kamp 	struct g_consumer *cp;
71dd84a43cSPoul-Henning Kamp 	struct g_provider *pp;
72dd84a43cSPoul-Henning Kamp 
73dd84a43cSPoul-Henning Kamp 	sbuf_printf(sb, "z%p [shape=box,label=\"%s\\n%s\\nr#%d\"];\n",
74e805e8f0SPoul-Henning Kamp 	    gp, gp->class->name, gp->name, gp->rank);
75dd84a43cSPoul-Henning Kamp 	LIST_FOREACH(cp, &gp->consumer, consumer) {
76dd84a43cSPoul-Henning Kamp 		g_confdot_consumer(sb, cp);
77dd84a43cSPoul-Henning Kamp 		sbuf_printf(sb, "z%p -> z%p;\n", gp, cp);
78dd84a43cSPoul-Henning Kamp 	}
79dd84a43cSPoul-Henning Kamp 
80dd84a43cSPoul-Henning Kamp 	LIST_FOREACH(pp, &gp->provider, provider) {
81dd84a43cSPoul-Henning Kamp 		g_confdot_provider(sb, pp);
82dd84a43cSPoul-Henning Kamp 		sbuf_printf(sb, "z%p -> z%p;\n", pp, gp);
83dd84a43cSPoul-Henning Kamp 	}
84dd84a43cSPoul-Henning Kamp }
85dd84a43cSPoul-Henning Kamp 
86dd84a43cSPoul-Henning Kamp static void
87e805e8f0SPoul-Henning Kamp g_confdot_class(struct sbuf *sb, struct g_class *mp)
88dd84a43cSPoul-Henning Kamp {
89dd84a43cSPoul-Henning Kamp 	struct g_geom *gp;
90dd84a43cSPoul-Henning Kamp 
91dd84a43cSPoul-Henning Kamp 	LIST_FOREACH(gp, &mp->geom, geom)
92dd84a43cSPoul-Henning Kamp 		g_confdot_geom(sb, gp);
93dd84a43cSPoul-Henning Kamp }
94dd84a43cSPoul-Henning Kamp 
952874f1cfSPoul-Henning Kamp void
96316aed03SPoul-Henning Kamp g_confdot(void *p, int flag )
97dd84a43cSPoul-Henning Kamp {
98e805e8f0SPoul-Henning Kamp 	struct g_class *mp;
99dd84a43cSPoul-Henning Kamp 	struct sbuf *sb;
100dd84a43cSPoul-Henning Kamp 
101316aed03SPoul-Henning Kamp 	KASSERT(flag != EV_CANCEL, ("g_confdot was cancelled"));
1022874f1cfSPoul-Henning Kamp 	sb = p;
1032874f1cfSPoul-Henning Kamp 	g_topology_assert();
104dd84a43cSPoul-Henning Kamp 	sbuf_printf(sb, "digraph geom {\n");
1052654e1fcSPoul-Henning Kamp 	LIST_FOREACH(mp, &g_classes, class)
106e805e8f0SPoul-Henning Kamp 		g_confdot_class(sb, mp);
107dd84a43cSPoul-Henning Kamp 	sbuf_printf(sb, "};\n");
108dd84a43cSPoul-Henning Kamp 	sbuf_finish(sb);
109dd84a43cSPoul-Henning Kamp }
110dd84a43cSPoul-Henning Kamp 
111d518e539SPoul-Henning Kamp static void
112d518e539SPoul-Henning Kamp g_conftxt_geom(struct sbuf *sb, struct g_geom *gp, int level)
113d518e539SPoul-Henning Kamp {
114d518e539SPoul-Henning Kamp 	struct g_provider *pp;
115d518e539SPoul-Henning Kamp 	struct g_consumer *cp;
116d518e539SPoul-Henning Kamp 
117d32622aaSPoul-Henning Kamp 	if (gp->flags & G_GEOM_WITHER)
118d32622aaSPoul-Henning Kamp 		return;
119d518e539SPoul-Henning Kamp 	LIST_FOREACH(pp, &gp->provider, provider) {
120d518e539SPoul-Henning Kamp 		sbuf_printf(sb, "%d %s %s %ju %u", level, gp->class->name,
121d518e539SPoul-Henning Kamp 		    pp->name, (uintmax_t)pp->mediasize, pp->sectorsize);
12282e5a9a3SPoul-Henning Kamp 		if (gp->dumpconf != NULL)
123d518e539SPoul-Henning Kamp 			gp->dumpconf(sb, NULL, gp, NULL, pp);
124d518e539SPoul-Henning Kamp 		sbuf_printf(sb, "\n");
125d518e539SPoul-Henning Kamp 		LIST_FOREACH(cp, &pp->consumers, consumers)
126d518e539SPoul-Henning Kamp 			g_conftxt_geom(sb, cp->geom, level + 1);
127d518e539SPoul-Henning Kamp 	}
128d518e539SPoul-Henning Kamp }
129d518e539SPoul-Henning Kamp 
130d518e539SPoul-Henning Kamp static void
131d518e539SPoul-Henning Kamp g_conftxt_class(struct sbuf *sb, struct g_class *mp)
132d518e539SPoul-Henning Kamp {
133d518e539SPoul-Henning Kamp 	struct g_geom *gp;
134d518e539SPoul-Henning Kamp 
135d518e539SPoul-Henning Kamp 	LIST_FOREACH(gp, &mp->geom, geom)
136d518e539SPoul-Henning Kamp 		g_conftxt_geom(sb, gp, 0);
137d518e539SPoul-Henning Kamp }
138d518e539SPoul-Henning Kamp 
139d518e539SPoul-Henning Kamp void
140316aed03SPoul-Henning Kamp g_conftxt(void *p, int flag)
141d518e539SPoul-Henning Kamp {
142d518e539SPoul-Henning Kamp 	struct g_class *mp;
143d518e539SPoul-Henning Kamp 	struct sbuf *sb;
144d518e539SPoul-Henning Kamp 
145316aed03SPoul-Henning Kamp 	KASSERT(flag != EV_CANCEL, ("g_conftxt was cancelled"));
146d518e539SPoul-Henning Kamp 	sb = p;
147d518e539SPoul-Henning Kamp 	g_topology_assert();
148d518e539SPoul-Henning Kamp 	LIST_FOREACH(mp, &g_classes, class)
149d518e539SPoul-Henning Kamp 		if (!strcmp(mp->name, "DISK"))
150d518e539SPoul-Henning Kamp 			break;
151d518e539SPoul-Henning Kamp 	if (mp != NULL)
152d518e539SPoul-Henning Kamp 		g_conftxt_class(sb, mp);
153d518e539SPoul-Henning Kamp 	sbuf_finish(sb);
154d518e539SPoul-Henning Kamp }
155d518e539SPoul-Henning Kamp 
156dd84a43cSPoul-Henning Kamp 
157dd84a43cSPoul-Henning Kamp static void
158dd84a43cSPoul-Henning Kamp g_conf_consumer(struct sbuf *sb, struct g_consumer *cp)
159dd84a43cSPoul-Henning Kamp {
160dd84a43cSPoul-Henning Kamp 
161f6424ee5SPoul-Henning Kamp 	sbuf_printf(sb, "\t<consumer id=\"%p\">\n", cp);
162f6424ee5SPoul-Henning Kamp 	sbuf_printf(sb, "\t  <geom ref=\"%p\"/>\n", cp->geom);
163f6424ee5SPoul-Henning Kamp 	if (cp->provider != NULL)
164f6424ee5SPoul-Henning Kamp 		sbuf_printf(sb, "\t  <provider ref=\"%p\"/>\n", cp->provider);
165dd84a43cSPoul-Henning Kamp 	sbuf_printf(sb, "\t  <mode>r%dw%de%d</mode>\n",
166dd84a43cSPoul-Henning Kamp 	    cp->acr, cp->acw, cp->ace);
167d32622aaSPoul-Henning Kamp 	if (cp->geom->flags & G_GEOM_WITHER)
168d32622aaSPoul-Henning Kamp 		;
169d32622aaSPoul-Henning Kamp 	else if (cp->geom->dumpconf != NULL) {
170dd84a43cSPoul-Henning Kamp 		sbuf_printf(sb, "\t  <config>\n");
171dd84a43cSPoul-Henning Kamp 		cp->geom->dumpconf(sb, "\t    ", cp->geom, cp, NULL);
172dd84a43cSPoul-Henning Kamp 		sbuf_printf(sb, "\t  </config>\n");
173dd84a43cSPoul-Henning Kamp 	}
174dd84a43cSPoul-Henning Kamp 	sbuf_printf(sb, "\t</consumer>\n");
175dd84a43cSPoul-Henning Kamp }
176dd84a43cSPoul-Henning Kamp 
177dd84a43cSPoul-Henning Kamp static void
178dd84a43cSPoul-Henning Kamp g_conf_provider(struct sbuf *sb, struct g_provider *pp)
179dd84a43cSPoul-Henning Kamp {
180dd84a43cSPoul-Henning Kamp 
181f6424ee5SPoul-Henning Kamp 	sbuf_printf(sb, "\t<provider id=\"%p\">\n", pp);
182f6424ee5SPoul-Henning Kamp 	sbuf_printf(sb, "\t  <geom ref=\"%p\"/>\n", pp->geom);
183dd84a43cSPoul-Henning Kamp 	sbuf_printf(sb, "\t  <mode>r%dw%de%d</mode>\n",
184dd84a43cSPoul-Henning Kamp 	    pp->acr, pp->acw, pp->ace);
185dd84a43cSPoul-Henning Kamp 	sbuf_printf(sb, "\t  <name>%s</name>\n", pp->name);
18614ac6812SPoul-Henning Kamp 	sbuf_printf(sb, "\t  <mediasize>%jd</mediasize>\n",
18714ac6812SPoul-Henning Kamp 	    (intmax_t)pp->mediasize);
18848444d62SPoul-Henning Kamp 	sbuf_printf(sb, "\t  <sectorsize>%u</sectorsize>\n", pp->sectorsize);
189d32622aaSPoul-Henning Kamp 	if (pp->geom->flags & G_GEOM_WITHER)
190d32622aaSPoul-Henning Kamp 		;
191d32622aaSPoul-Henning Kamp 	else if (pp->geom->dumpconf != NULL) {
192dd84a43cSPoul-Henning Kamp 		sbuf_printf(sb, "\t  <config>\n");
193dd84a43cSPoul-Henning Kamp 		pp->geom->dumpconf(sb, "\t    ", pp->geom, NULL, pp);
194dd84a43cSPoul-Henning Kamp 		sbuf_printf(sb, "\t  </config>\n");
195dd84a43cSPoul-Henning Kamp 	}
196dd84a43cSPoul-Henning Kamp 	sbuf_printf(sb, "\t</provider>\n");
197dd84a43cSPoul-Henning Kamp }
198dd84a43cSPoul-Henning Kamp 
199dd84a43cSPoul-Henning Kamp 
200dd84a43cSPoul-Henning Kamp static void
201dd84a43cSPoul-Henning Kamp g_conf_geom(struct sbuf *sb, struct g_geom *gp, struct g_provider *pp, struct g_consumer *cp)
202dd84a43cSPoul-Henning Kamp {
203dd84a43cSPoul-Henning Kamp 	struct g_consumer *cp2;
204dd84a43cSPoul-Henning Kamp 	struct g_provider *pp2;
205dd84a43cSPoul-Henning Kamp 
206f6424ee5SPoul-Henning Kamp 	sbuf_printf(sb, "    <geom id=\"%p\">\n", gp);
207f6424ee5SPoul-Henning Kamp 	sbuf_printf(sb, "      <class ref=\"%p\"/>\n", gp->class);
208dd84a43cSPoul-Henning Kamp 	sbuf_printf(sb, "      <name>%s</name>\n", gp->name);
209dd84a43cSPoul-Henning Kamp 	sbuf_printf(sb, "      <rank>%d</rank>\n", gp->rank);
210d32622aaSPoul-Henning Kamp 	if (gp->flags & G_GEOM_WITHER)
211d32622aaSPoul-Henning Kamp 		sbuf_printf(sb, "      <wither/>\n");
212d32622aaSPoul-Henning Kamp 	else if (gp->dumpconf != NULL) {
213dd84a43cSPoul-Henning Kamp 		sbuf_printf(sb, "      <config>\n");
214dd84a43cSPoul-Henning Kamp 		gp->dumpconf(sb, "\t", gp, NULL, NULL);
215dd84a43cSPoul-Henning Kamp 		sbuf_printf(sb, "      </config>\n");
216dd84a43cSPoul-Henning Kamp 	}
217dd84a43cSPoul-Henning Kamp 	LIST_FOREACH(cp2, &gp->consumer, consumer) {
218dd84a43cSPoul-Henning Kamp 		if (cp != NULL && cp != cp2)
219dd84a43cSPoul-Henning Kamp 			continue;
220dd84a43cSPoul-Henning Kamp 		g_conf_consumer(sb, cp2);
221dd84a43cSPoul-Henning Kamp 	}
222dd84a43cSPoul-Henning Kamp 
223dd84a43cSPoul-Henning Kamp 	LIST_FOREACH(pp2, &gp->provider, provider) {
224dd84a43cSPoul-Henning Kamp 		if (pp != NULL && pp != pp2)
225dd84a43cSPoul-Henning Kamp 			continue;
226dd84a43cSPoul-Henning Kamp 		g_conf_provider(sb, pp2);
227dd84a43cSPoul-Henning Kamp 	}
228dd84a43cSPoul-Henning Kamp 	sbuf_printf(sb, "    </geom>\n");
229dd84a43cSPoul-Henning Kamp }
230dd84a43cSPoul-Henning Kamp 
231dd84a43cSPoul-Henning Kamp static void
232e805e8f0SPoul-Henning Kamp g_conf_class(struct sbuf *sb, struct g_class *mp, struct g_geom *gp, struct g_provider *pp, struct g_consumer *cp)
233dd84a43cSPoul-Henning Kamp {
234dd84a43cSPoul-Henning Kamp 	struct g_geom *gp2;
235dd84a43cSPoul-Henning Kamp 
236f6424ee5SPoul-Henning Kamp 	sbuf_printf(sb, "  <class id=\"%p\">\n", mp);
237dd84a43cSPoul-Henning Kamp 	sbuf_printf(sb, "    <name>%s</name>\n", mp->name);
238dd84a43cSPoul-Henning Kamp 	LIST_FOREACH(gp2, &mp->geom, geom) {
239dd84a43cSPoul-Henning Kamp 		if (gp != NULL && gp != gp2)
240dd84a43cSPoul-Henning Kamp 			continue;
241dd84a43cSPoul-Henning Kamp 		g_conf_geom(sb, gp2, pp, cp);
242dd84a43cSPoul-Henning Kamp 	}
243e805e8f0SPoul-Henning Kamp 	sbuf_printf(sb, "  </class>\n");
244dd84a43cSPoul-Henning Kamp }
245dd84a43cSPoul-Henning Kamp 
2462874f1cfSPoul-Henning Kamp void
2472874f1cfSPoul-Henning Kamp g_conf_specific(struct sbuf *sb, struct g_class *mp, struct g_geom *gp, struct g_provider *pp, struct g_consumer *cp)
248dd84a43cSPoul-Henning Kamp {
249e805e8f0SPoul-Henning Kamp 	struct g_class *mp2;
250dd84a43cSPoul-Henning Kamp 
2512874f1cfSPoul-Henning Kamp 	g_topology_assert();
252dd84a43cSPoul-Henning Kamp 	sbuf_printf(sb, "<mesh>\n");
2532654e1fcSPoul-Henning Kamp 	LIST_FOREACH(mp2, &g_classes, class) {
254dd84a43cSPoul-Henning Kamp 		if (mp != NULL && mp != mp2)
255dd84a43cSPoul-Henning Kamp 			continue;
256e805e8f0SPoul-Henning Kamp 		g_conf_class(sb, mp2, gp, pp, cp);
257dd84a43cSPoul-Henning Kamp 	}
258dd84a43cSPoul-Henning Kamp 	sbuf_printf(sb, "</mesh>\n");
259dd84a43cSPoul-Henning Kamp 	sbuf_finish(sb);
260dd84a43cSPoul-Henning Kamp }
261dd84a43cSPoul-Henning Kamp 
2622874f1cfSPoul-Henning Kamp void
263316aed03SPoul-Henning Kamp g_confxml(void *p, int flag)
264dd84a43cSPoul-Henning Kamp {
265dd84a43cSPoul-Henning Kamp 
266316aed03SPoul-Henning Kamp 	KASSERT(flag != EV_CANCEL, ("g_confxml was cancelled"));
267d0e17c1bSPoul-Henning Kamp 	g_topology_assert();
2682874f1cfSPoul-Henning Kamp 	g_conf_specific(p, NULL, NULL, NULL, NULL);
269dd84a43cSPoul-Henning Kamp }
270dd84a43cSPoul-Henning Kamp 
271dd84a43cSPoul-Henning Kamp void
2720f9d3dbaSPoul-Henning Kamp g_trace(int level, const char *fmt, ...)
273dd84a43cSPoul-Henning Kamp {
274dd84a43cSPoul-Henning Kamp 	va_list ap;
275dd84a43cSPoul-Henning Kamp 
2767d590cc4SPoul-Henning Kamp 	g_sanity(NULL);
277dd84a43cSPoul-Henning Kamp 	if (!(g_debugflags & level))
278dd84a43cSPoul-Henning Kamp 		return;
279dd84a43cSPoul-Henning Kamp 	va_start(ap, fmt);
28072840432SPoul-Henning Kamp 	vprintf(fmt, ap);
281a1a9b445SPoul-Henning Kamp 	va_end(ap);
28272840432SPoul-Henning Kamp 	printf("\n");
283dd84a43cSPoul-Henning Kamp }
284dd84a43cSPoul-Henning Kamp 
285dd84a43cSPoul-Henning Kamp void
286dd84a43cSPoul-Henning Kamp g_hexdump(void *ptr, int length)
287dd84a43cSPoul-Henning Kamp {
288dd84a43cSPoul-Henning Kamp 	int i, j, k;
289dd84a43cSPoul-Henning Kamp 	unsigned char *cp;
290dd84a43cSPoul-Henning Kamp 
291dd84a43cSPoul-Henning Kamp 	cp = ptr;
292dd84a43cSPoul-Henning Kamp 	for (i = 0; i < length; i+= 16) {
293dd84a43cSPoul-Henning Kamp 		printf("%04x  ", i);
294dd84a43cSPoul-Henning Kamp 		for (j = 0; j < 16; j++) {
295dd84a43cSPoul-Henning Kamp 			k = i + j;
296dd84a43cSPoul-Henning Kamp 			if (k < length)
297dd84a43cSPoul-Henning Kamp 				printf(" %02x", cp[k]);
298dd84a43cSPoul-Henning Kamp 			else
299dd84a43cSPoul-Henning Kamp 				printf("   ");
300dd84a43cSPoul-Henning Kamp 		}
301dd84a43cSPoul-Henning Kamp 		printf("  |");
302dd84a43cSPoul-Henning Kamp 		for (j = 0; j < 16; j++) {
303dd84a43cSPoul-Henning Kamp 			k = i + j;
304dd84a43cSPoul-Henning Kamp 			if (k >= length)
305dd84a43cSPoul-Henning Kamp 				printf(" ");
306dd84a43cSPoul-Henning Kamp 			else if (cp[k] >= ' ' && cp[k] <= '~')
307dd84a43cSPoul-Henning Kamp 				printf("%c", cp[k]);
308dd84a43cSPoul-Henning Kamp 			else
309dd84a43cSPoul-Henning Kamp 				printf(".");
310dd84a43cSPoul-Henning Kamp 		}
311dd84a43cSPoul-Henning Kamp 		printf("|\n");
312dd84a43cSPoul-Henning Kamp 	}
313dd84a43cSPoul-Henning Kamp }
314dd84a43cSPoul-Henning Kamp 
315