xref: /freebsd/sys/geom/geom_dump.c (revision a1a9b44569495d983e949db11c17a448a0e523e1)
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 #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 
117d518e539SPoul-Henning Kamp 	LIST_FOREACH(pp, &gp->provider, provider) {
118d518e539SPoul-Henning Kamp 		sbuf_printf(sb, "%d %s %s %ju %u", level, gp->class->name,
119d518e539SPoul-Henning Kamp 		    pp->name, (uintmax_t)pp->mediasize, pp->sectorsize);
12082e5a9a3SPoul-Henning Kamp 		if (gp->dumpconf != NULL)
121d518e539SPoul-Henning Kamp 			gp->dumpconf(sb, NULL, gp, NULL, pp);
122d518e539SPoul-Henning Kamp 		sbuf_printf(sb, "\n");
123d518e539SPoul-Henning Kamp 		LIST_FOREACH(cp, &pp->consumers, consumers)
124d518e539SPoul-Henning Kamp 			g_conftxt_geom(sb, cp->geom, level + 1);
125d518e539SPoul-Henning Kamp 	}
126d518e539SPoul-Henning Kamp }
127d518e539SPoul-Henning Kamp 
128d518e539SPoul-Henning Kamp static void
129d518e539SPoul-Henning Kamp g_conftxt_class(struct sbuf *sb, struct g_class *mp)
130d518e539SPoul-Henning Kamp {
131d518e539SPoul-Henning Kamp 	struct g_geom *gp;
132d518e539SPoul-Henning Kamp 
133d518e539SPoul-Henning Kamp 	LIST_FOREACH(gp, &mp->geom, geom)
134d518e539SPoul-Henning Kamp 		g_conftxt_geom(sb, gp, 0);
135d518e539SPoul-Henning Kamp }
136d518e539SPoul-Henning Kamp 
137d518e539SPoul-Henning Kamp void
138316aed03SPoul-Henning Kamp g_conftxt(void *p, int flag)
139d518e539SPoul-Henning Kamp {
140d518e539SPoul-Henning Kamp 	struct g_class *mp;
141d518e539SPoul-Henning Kamp 	struct sbuf *sb;
142d518e539SPoul-Henning Kamp 
143316aed03SPoul-Henning Kamp 	KASSERT(flag != EV_CANCEL, ("g_conftxt was cancelled"));
144d518e539SPoul-Henning Kamp 	sb = p;
145d518e539SPoul-Henning Kamp 	g_topology_assert();
146d518e539SPoul-Henning Kamp 	LIST_FOREACH(mp, &g_classes, class)
147d518e539SPoul-Henning Kamp 		if (!strcmp(mp->name, "DISK"))
148d518e539SPoul-Henning Kamp 			break;
149d518e539SPoul-Henning Kamp 	if (mp != NULL)
150d518e539SPoul-Henning Kamp 		g_conftxt_class(sb, mp);
151d518e539SPoul-Henning Kamp 	sbuf_finish(sb);
152d518e539SPoul-Henning Kamp }
153d518e539SPoul-Henning Kamp 
154dd84a43cSPoul-Henning Kamp 
155dd84a43cSPoul-Henning Kamp static void
156dd84a43cSPoul-Henning Kamp g_conf_consumer(struct sbuf *sb, struct g_consumer *cp)
157dd84a43cSPoul-Henning Kamp {
158dd84a43cSPoul-Henning Kamp 
159f6424ee5SPoul-Henning Kamp 	sbuf_printf(sb, "\t<consumer id=\"%p\">\n", cp);
160f6424ee5SPoul-Henning Kamp 	sbuf_printf(sb, "\t  <geom ref=\"%p\"/>\n", cp->geom);
161f6424ee5SPoul-Henning Kamp 	if (cp->provider != NULL)
162f6424ee5SPoul-Henning Kamp 		sbuf_printf(sb, "\t  <provider ref=\"%p\"/>\n", cp->provider);
163dd84a43cSPoul-Henning Kamp 	sbuf_printf(sb, "\t  <mode>r%dw%de%d</mode>\n",
164dd84a43cSPoul-Henning Kamp 	    cp->acr, cp->acw, cp->ace);
16582e5a9a3SPoul-Henning Kamp 	if (cp->geom->dumpconf != NULL) {
166dd84a43cSPoul-Henning Kamp 		sbuf_printf(sb, "\t  <config>\n");
167dd84a43cSPoul-Henning Kamp 		cp->geom->dumpconf(sb, "\t    ", cp->geom, cp, NULL);
168dd84a43cSPoul-Henning Kamp 		sbuf_printf(sb, "\t  </config>\n");
169dd84a43cSPoul-Henning Kamp 	}
170dd84a43cSPoul-Henning Kamp 	sbuf_printf(sb, "\t</consumer>\n");
171dd84a43cSPoul-Henning Kamp }
172dd84a43cSPoul-Henning Kamp 
173dd84a43cSPoul-Henning Kamp static void
174dd84a43cSPoul-Henning Kamp g_conf_provider(struct sbuf *sb, struct g_provider *pp)
175dd84a43cSPoul-Henning Kamp {
176dd84a43cSPoul-Henning Kamp 
177f6424ee5SPoul-Henning Kamp 	sbuf_printf(sb, "\t<provider id=\"%p\">\n", pp);
178f6424ee5SPoul-Henning Kamp 	sbuf_printf(sb, "\t  <geom ref=\"%p\"/>\n", pp->geom);
179dd84a43cSPoul-Henning Kamp 	sbuf_printf(sb, "\t  <mode>r%dw%de%d</mode>\n",
180dd84a43cSPoul-Henning Kamp 	    pp->acr, pp->acw, pp->ace);
181dd84a43cSPoul-Henning Kamp 	sbuf_printf(sb, "\t  <name>%s</name>\n", pp->name);
18214ac6812SPoul-Henning Kamp 	sbuf_printf(sb, "\t  <mediasize>%jd</mediasize>\n",
18314ac6812SPoul-Henning Kamp 	    (intmax_t)pp->mediasize);
18448444d62SPoul-Henning Kamp 	sbuf_printf(sb, "\t  <sectorsize>%u</sectorsize>\n", pp->sectorsize);
18582e5a9a3SPoul-Henning Kamp 	if (pp->geom->dumpconf != NULL) {
186dd84a43cSPoul-Henning Kamp 		sbuf_printf(sb, "\t  <config>\n");
187dd84a43cSPoul-Henning Kamp 		pp->geom->dumpconf(sb, "\t    ", pp->geom, NULL, pp);
188dd84a43cSPoul-Henning Kamp 		sbuf_printf(sb, "\t  </config>\n");
189dd84a43cSPoul-Henning Kamp 	}
190dd84a43cSPoul-Henning Kamp 	sbuf_printf(sb, "\t</provider>\n");
191dd84a43cSPoul-Henning Kamp }
192dd84a43cSPoul-Henning Kamp 
193dd84a43cSPoul-Henning Kamp 
194dd84a43cSPoul-Henning Kamp static void
195dd84a43cSPoul-Henning Kamp g_conf_geom(struct sbuf *sb, struct g_geom *gp, struct g_provider *pp, struct g_consumer *cp)
196dd84a43cSPoul-Henning Kamp {
197dd84a43cSPoul-Henning Kamp 	struct g_consumer *cp2;
198dd84a43cSPoul-Henning Kamp 	struct g_provider *pp2;
199dd84a43cSPoul-Henning Kamp 
200f6424ee5SPoul-Henning Kamp 	sbuf_printf(sb, "    <geom id=\"%p\">\n", gp);
201f6424ee5SPoul-Henning Kamp 	sbuf_printf(sb, "      <class ref=\"%p\"/>\n", gp->class);
202dd84a43cSPoul-Henning Kamp 	sbuf_printf(sb, "      <name>%s</name>\n", gp->name);
203dd84a43cSPoul-Henning Kamp 	sbuf_printf(sb, "      <rank>%d</rank>\n", gp->rank);
20482e5a9a3SPoul-Henning Kamp 	if (gp->dumpconf != NULL) {
205dd84a43cSPoul-Henning Kamp 		sbuf_printf(sb, "      <config>\n");
206dd84a43cSPoul-Henning Kamp 		gp->dumpconf(sb, "\t", gp, NULL, NULL);
207dd84a43cSPoul-Henning Kamp 		sbuf_printf(sb, "      </config>\n");
208dd84a43cSPoul-Henning Kamp 	}
209dd84a43cSPoul-Henning Kamp 	LIST_FOREACH(cp2, &gp->consumer, consumer) {
210dd84a43cSPoul-Henning Kamp 		if (cp != NULL && cp != cp2)
211dd84a43cSPoul-Henning Kamp 			continue;
212dd84a43cSPoul-Henning Kamp 		g_conf_consumer(sb, cp2);
213dd84a43cSPoul-Henning Kamp 	}
214dd84a43cSPoul-Henning Kamp 
215dd84a43cSPoul-Henning Kamp 	LIST_FOREACH(pp2, &gp->provider, provider) {
216dd84a43cSPoul-Henning Kamp 		if (pp != NULL && pp != pp2)
217dd84a43cSPoul-Henning Kamp 			continue;
218dd84a43cSPoul-Henning Kamp 		g_conf_provider(sb, pp2);
219dd84a43cSPoul-Henning Kamp 	}
220dd84a43cSPoul-Henning Kamp 	sbuf_printf(sb, "    </geom>\n");
221dd84a43cSPoul-Henning Kamp }
222dd84a43cSPoul-Henning Kamp 
223dd84a43cSPoul-Henning Kamp static void
224e805e8f0SPoul-Henning Kamp g_conf_class(struct sbuf *sb, struct g_class *mp, struct g_geom *gp, struct g_provider *pp, struct g_consumer *cp)
225dd84a43cSPoul-Henning Kamp {
226dd84a43cSPoul-Henning Kamp 	struct g_geom *gp2;
227dd84a43cSPoul-Henning Kamp 
228f6424ee5SPoul-Henning Kamp 	sbuf_printf(sb, "  <class id=\"%p\">\n", mp);
229dd84a43cSPoul-Henning Kamp 	sbuf_printf(sb, "    <name>%s</name>\n", mp->name);
230dd84a43cSPoul-Henning Kamp 	LIST_FOREACH(gp2, &mp->geom, geom) {
231dd84a43cSPoul-Henning Kamp 		if (gp != NULL && gp != gp2)
232dd84a43cSPoul-Henning Kamp 			continue;
233dd84a43cSPoul-Henning Kamp 		g_conf_geom(sb, gp2, pp, cp);
234dd84a43cSPoul-Henning Kamp 	}
235e805e8f0SPoul-Henning Kamp 	sbuf_printf(sb, "  </class>\n");
236dd84a43cSPoul-Henning Kamp }
237dd84a43cSPoul-Henning Kamp 
2382874f1cfSPoul-Henning Kamp void
2392874f1cfSPoul-Henning Kamp g_conf_specific(struct sbuf *sb, struct g_class *mp, struct g_geom *gp, struct g_provider *pp, struct g_consumer *cp)
240dd84a43cSPoul-Henning Kamp {
241e805e8f0SPoul-Henning Kamp 	struct g_class *mp2;
242dd84a43cSPoul-Henning Kamp 
2432874f1cfSPoul-Henning Kamp 	g_topology_assert();
244dd84a43cSPoul-Henning Kamp 	sbuf_printf(sb, "<mesh>\n");
2452654e1fcSPoul-Henning Kamp 	LIST_FOREACH(mp2, &g_classes, class) {
246dd84a43cSPoul-Henning Kamp 		if (mp != NULL && mp != mp2)
247dd84a43cSPoul-Henning Kamp 			continue;
248e805e8f0SPoul-Henning Kamp 		g_conf_class(sb, mp2, gp, pp, cp);
249dd84a43cSPoul-Henning Kamp 	}
250dd84a43cSPoul-Henning Kamp 	sbuf_printf(sb, "</mesh>\n");
251dd84a43cSPoul-Henning Kamp 	sbuf_finish(sb);
252dd84a43cSPoul-Henning Kamp }
253dd84a43cSPoul-Henning Kamp 
2542874f1cfSPoul-Henning Kamp void
255316aed03SPoul-Henning Kamp g_confxml(void *p, int flag)
256dd84a43cSPoul-Henning Kamp {
257dd84a43cSPoul-Henning Kamp 
258316aed03SPoul-Henning Kamp 	KASSERT(flag != EV_CANCEL, ("g_confxml was cancelled"));
259d0e17c1bSPoul-Henning Kamp 	g_topology_assert();
2602874f1cfSPoul-Henning Kamp 	g_conf_specific(p, NULL, NULL, NULL, NULL);
261dd84a43cSPoul-Henning Kamp }
262dd84a43cSPoul-Henning Kamp 
263dd84a43cSPoul-Henning Kamp void
2640f9d3dbaSPoul-Henning Kamp g_trace(int level, const char *fmt, ...)
265dd84a43cSPoul-Henning Kamp {
266dd84a43cSPoul-Henning Kamp 	va_list ap;
267dd84a43cSPoul-Henning Kamp 
2687d590cc4SPoul-Henning Kamp 	g_sanity(NULL);
269dd84a43cSPoul-Henning Kamp 	if (!(g_debugflags & level))
270dd84a43cSPoul-Henning Kamp 		return;
271dd84a43cSPoul-Henning Kamp 	va_start(ap, fmt);
27272840432SPoul-Henning Kamp 	vprintf(fmt, ap);
273a1a9b445SPoul-Henning Kamp 	va_end(ap);
27472840432SPoul-Henning Kamp 	printf("\n");
275dd84a43cSPoul-Henning Kamp }
276dd84a43cSPoul-Henning Kamp 
277dd84a43cSPoul-Henning Kamp void
278dd84a43cSPoul-Henning Kamp g_hexdump(void *ptr, int length)
279dd84a43cSPoul-Henning Kamp {
280dd84a43cSPoul-Henning Kamp 	int i, j, k;
281dd84a43cSPoul-Henning Kamp 	unsigned char *cp;
282dd84a43cSPoul-Henning Kamp 
283dd84a43cSPoul-Henning Kamp 	cp = ptr;
284dd84a43cSPoul-Henning Kamp 	for (i = 0; i < length; i+= 16) {
285dd84a43cSPoul-Henning Kamp 		printf("%04x  ", i);
286dd84a43cSPoul-Henning Kamp 		for (j = 0; j < 16; j++) {
287dd84a43cSPoul-Henning Kamp 			k = i + j;
288dd84a43cSPoul-Henning Kamp 			if (k < length)
289dd84a43cSPoul-Henning Kamp 				printf(" %02x", cp[k]);
290dd84a43cSPoul-Henning Kamp 			else
291dd84a43cSPoul-Henning Kamp 				printf("   ");
292dd84a43cSPoul-Henning Kamp 		}
293dd84a43cSPoul-Henning Kamp 		printf("  |");
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(" ");
298dd84a43cSPoul-Henning Kamp 			else if (cp[k] >= ' ' && cp[k] <= '~')
299dd84a43cSPoul-Henning Kamp 				printf("%c", cp[k]);
300dd84a43cSPoul-Henning Kamp 			else
301dd84a43cSPoul-Henning Kamp 				printf(".");
302dd84a43cSPoul-Henning Kamp 		}
303dd84a43cSPoul-Henning Kamp 		printf("|\n");
304dd84a43cSPoul-Henning Kamp 	}
305dd84a43cSPoul-Henning Kamp }
306dd84a43cSPoul-Henning Kamp 
307