xref: /illumos-gate/usr/src/cmd/prtfru/prtfru.c (revision 03831d35)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 #pragma ident	"%Z%%M%	%I%	%E% SMI"
27 
28 #include <alloca.h>
29 #include <assert.h>
30 #include <errno.h>
31 #include <libintl.h>
32 #include <stdarg.h>
33 #include <stdio.h>
34 #include <stdlib.h>
35 #include <string.h>
36 
37 #include "fru_tag.h"
38 #include "libfrup.h"
39 #include "libfrureg.h"
40 
41 
42 #define	NUM_ITER_BYTES 4
43 
44 #define	HEAD_ITER 0
45 #define	TAIL_ITER 1	/*  not used  */
46 #define	NUM_ITER  2
47 #define	MAX_ITER  3
48 
49 #define	INDENT 3
50 #define	TIMESTRINGLEN 128
51 #define	TEMPERATURE_OFFSET 73
52 
53 static void	(*print_node)(fru_node_t fru_type, const char *path,
54 				const char *name, end_node_fp_t *end_node,
55 				void **end_args);
56 
57 static char	tagname[sizeof ("?_0123456789_0123456789_0123456789")];
58 
59 static int	containers_only = 0, list_only = 0, saved_status = 0, xml = 0;
60 
61 static FILE	*errlog;
62 
63 /*
64  * Definition for data elements found in devices but not found in
65  * the system's version of libfrureg
66  */
67 static fru_regdef_t  unknown = {
68 	REGDEF_VERSION,
69 	tagname,
70 	-1,
71 	-1,
72 	-1,
73 	-1,
74 	FDTYPE_ByteArray,
75 	FDISP_Hex,
76 	FRU_WHICH_UNDEFINED,
77 	FRU_WHICH_UNDEFINED,
78 	0,
79 	NULL,
80 	0,
81 	FRU_NOT_ITERATED,
82 	NULL
83 };
84 
85 
86 /*
87  * Write message to standard error and possibly the error log buffer
88  */
89 static void
90 error(const char *format, ...)
91 {
92 	va_list	args;
93 
94 
95 	/* make relevant output appear before error message */
96 	if (fflush(stdout) == EOF) {
97 		(void) fprintf(stderr, "Error flushing output:  %s\n",
98 				strerror(errno));
99 		exit(1);
100 	}
101 
102 	va_start(args, format);
103 	if (vfprintf(stderr, format, args) < 0) exit(1);
104 	if (errlog && (vfprintf(errlog, format, args) < 0)) exit(1);
105 }
106 
107 /*
108  * Write message to standard output
109  */
110 static void
111 output(const char *format, ...)
112 {
113 	va_list   args;
114 
115 
116 	va_start(args, format);
117 	if (vfprintf(stdout, format, args) < 0) {
118 		error(gettext("Error writing output:  %s\n"),
119 			strerror(errno));
120 		exit(1);
121 	}
122 }
123 
124 /*
125  * Safe wrapper for putchar()
126  */
127 static void
128 voidputchar(int c)
129 {
130 	if (putchar(c) == EOF) {
131 		error(gettext("Error writing output:  %s\n"),
132 			strerror(errno));
133 		exit(1);
134 	}
135 }
136 
137 static void  (*safeputchar)(int c) = voidputchar;
138 
139 /*
140  * Safe wrapper for puts()
141  */
142 static void
143 voidputs(const char *s)
144 {
145 	if (fputs(s, stdout) == EOF) {
146 		error(gettext("Error writing output:  %s\n"),
147 			strerror(errno));
148 		exit(1);
149 	}
150 }
151 
152 static void  (*safeputs)(const char *s) = voidputs;
153 
154 /*
155  * XML-safe wrapper for putchar():  quotes XML-special characters
156  */
157 static void
158 xputchar(int c)
159 {
160 	switch (c) {
161 	case '<':
162 		c = fputs("&lt;", stdout);
163 		break;
164 	case '>':
165 		c = fputs("&gt;", stdout);
166 		break;
167 	case '&':
168 		c = fputs("&amp;", stdout);
169 		break;
170 	case '"':
171 		c = fputs("&quot;", stdout);
172 		break;
173 	default:
174 		c = putchar(c);
175 		break;
176 	}
177 
178 	if (c == EOF) {
179 		error(gettext("Error writing output:  %s\n"),
180 			strerror(errno));
181 		exit(1);
182 	}
183 }
184 
185 /*
186  * XML-safe analog of puts():  quotes XML-special characters
187  */
188 static void
189 xputs(const char *s)
190 {
191 	char c;
192 
193 	for (/* */; ((c = *s) != 0); s++)
194 		xputchar(c);
195 }
196 
197 /*
198  * Output the XML DTD derived from the registry provided by libfrureg
199  */
200 int
201 output_dtd(void)
202 {
203 	char			**element;
204 
205 	unsigned int		i, j, num_elements = 0;
206 
207 	uint8_t			*tagged;
208 
209 	const fru_regdef_t	*def;
210 
211 
212 	if (((element = fru_reg_list_entries(&num_elements)) == NULL) ||
213 	    (num_elements == 0)) {
214 		error(gettext("No FRU ID Registry elements"));
215 		return (1);
216 	}
217 
218 	if ((tagged = calloc(num_elements, sizeof (*tagged))) == NULL) {
219 		error(gettext("Unable to get memory for tagged element list"),
220 			strerror(errno));
221 		return (1);
222 	}
223 
224 	/*
225 	 * Output the DTD preamble
226 	 */
227 	output("<!ELEMENT FRUID_XML_Tree (Parameter*, "
228 	    "(Fru | Location | Container)*,\n"
229 	    "                          Parameter*, ErrorLog?, Parameter*)>\n"
230 	    "<!ATTLIST FRUID_XML_Tree>\n"
231 	    "\n"
232 	    "<!ELEMENT Parameter EMPTY>\n"
233 	    "<!ATTLIST Parameter type CDATA #REQUIRED>\n"
234 	    "<!ATTLIST Parameter name CDATA #REQUIRED>\n"
235 	    "<!ATTLIST Parameter value CDATA #REQUIRED>\n"
236 	    "\n"
237 	    "<!ELEMENT Fru (Fru | Location | Container)*>\n"
238 	    "<!ATTLIST Fru name CDATA #REQUIRED>\n"
239 	    "\n"
240 	    "<!ELEMENT Location (Fru | Location | Container)*>\n"
241 	    "<!ATTLIST Location\n"
242 	    "	name CDATA #IMPLIED\n"
243 	    "	value CDATA #IMPLIED\n"
244 	    ">\n"
245 	    "\n"
246 	    "<!ELEMENT Container (ContainerData?, "
247 	    "(Fru | Location | Container)*)>\n"
248 	    "<!ATTLIST Container name CDATA #REQUIRED>\n"
249 	    "<!ATTLIST Container imagefile CDATA #IMPLIED>\n"
250 	    "\n"
251 	    "<!ELEMENT ContainerData (Segment*)>\n"
252 	    "<!ATTLIST ContainerData>\n"
253 	    "\n"
254 	    "<!ATTLIST Segment name CDATA #REQUIRED>\n"
255 	    "\n"
256 	    "<!ELEMENT Index EMPTY>\n"
257 	    "<!ATTLIST Index value CDATA #REQUIRED>\n"
258 	    "\n"
259 	    "<!ELEMENT ErrorLog (#PCDATA)>\n"
260 	    "<!ATTLIST ErrorLog>\n"
261 	    "\n");
262 
263 	/*
264 	 * Output the definition for each element
265 	 */
266 	for (i = 0; i < num_elements; i++) {
267 		assert(element[i] != NULL);
268 		/* Prevent incompatible duplicate defn. from FRUID Registry. */
269 		if ((strcmp("Location", element[i])) == 0) continue;
270 		if ((def = fru_reg_lookup_def_by_name(element[i])) == NULL) {
271 			error(gettext("Error looking up registry "
272 					"definition for \"%s\"\n"),
273 				element[i]);
274 			return (1);
275 		}
276 
277 		if (def->tagType != FRU_X) tagged[i] = 1;
278 
279 		if (def->dataType == FDTYPE_Record) {
280 			if (def->iterationType == FRU_NOT_ITERATED)
281 				output("<!ELEMENT %s (%s", element[i],
282 				    def->enumTable[0].text);
283 			else
284 				output("<!ELEMENT %s (Index_%s*)>\n"
285 				    "<!ATTLIST Index_%s>\n"
286 				    "<!ELEMENT Index_%s (%s",
287 				    element[i], element[i], element[i],
288 				    element[i], def->enumTable[0].text);
289 
290 			for (j = 1; j < def->enumCount; j++)
291 				output(",\n\t%s", def->enumTable[j].text);
292 
293 			output(")>\n");
294 		} else if (def->iterationType == FRU_NOT_ITERATED) {
295 			output("<!ELEMENT %s EMPTY>\n"
296 			    "<!ATTLIST %s value CDATA #REQUIRED>\n",
297 			    element[i], element[i]);
298 
299 			if (def->dataType == FDTYPE_Enumeration) {
300 				output("<!-- %s valid enumeration values\n");
301 				for (j = 0; j < def->enumCount; j++) {
302 					output("\t\"");
303 					xputs(def->enumTable[j].text);
304 					output("\"\n");
305 				}
306 				output("-->\n");
307 			}
308 		}
309 		else
310 			output("<!ELEMENT %s (Index*)>\n", element[i]);
311 
312 		output("\n");
313 	}
314 
315 	/* Provide for returning the tag for an "unknown" element */
316 	output("<!ATTLIST UNKNOWN tag CDATA \"UNKNOWN\">\n\n");
317 
318 
319 	/*
320 	 * List all data elements as possible members of "Segment"
321 	 */
322 	output("<!ELEMENT Segment ((UNKNOWN");
323 	for (i = 0; i < num_elements; i++) {
324 		if (tagged[i]) output("\n\t| %s", element[i]);
325 		free(element[i]);
326 	}
327 	output(")*)>\n");
328 	free(element);
329 	free(tagged);
330 
331 	return (0);
332 }
333 
334 /*
335  * Safely pretty-print the value of a field
336  */
337 static void
338 print_field(const uint8_t *field, const fru_regdef_t *def)
339 {
340 	char		*errmsg = NULL, timestring[TIMESTRINGLEN];
341 
342 	int		i;
343 
344 	uint64_t	value;
345 
346 	time_t		timefield;
347 
348 
349 	switch (def->dataType) {
350 	case FDTYPE_Binary:
351 		assert(def->payloadLen <= sizeof (value));
352 		switch (def->dispType) {
353 		case FDISP_Binary:
354 			for (i = 0; i < def->payloadLen; i++)
355 				output("%c%c%c%c%c%c%c%c",
356 				    ((field[i] & 0x80) ? '1' : '0'),
357 				    ((field[i] & 0x40) ? '1' : '0'),
358 				    ((field[i] & 0x20) ? '1' : '0'),
359 				    ((field[i] & 0x10) ? '1' : '0'),
360 				    ((field[i] & 0x08) ? '1' : '0'),
361 				    ((field[i] & 0x04) ? '1' : '0'),
362 				    ((field[i] & 0x02) ? '1' : '0'),
363 				    ((field[i] & 0x01) ? '1' : '0'));
364 			return;
365 		case FDISP_Octal:
366 		case FDISP_Decimal:
367 			value = 0;
368 			(void) memcpy((((uint8_t *)&value) +
369 					sizeof (value) - def->payloadLen),
370 					field, def->payloadLen);
371 			if ((value != 0) &&
372 				((strcmp(def->name, "Lowest") == 0) ||
373 				(strcmp(def->name, "Highest") == 0) ||
374 				(strcmp(def->name, "Latest") == 0)))
375 				value -= TEMPERATURE_OFFSET;
376 			output((def->dispType == FDISP_Octal) ?
377 				"%llo" : "%lld", value);
378 			return;
379 		case FDISP_Time:
380 			if (def->payloadLen > sizeof (timefield)) {
381 				errmsg = "time value too large for formatting";
382 				break;
383 			}
384 			(void) memcpy(&timefield, field, sizeof (timefield));
385 			if (strftime(timestring, sizeof (timestring), "%C",
386 					localtime(&timefield)) == 0) {
387 				errmsg = "formatted time would overflow buffer";
388 				break;
389 			}
390 			safeputs(timestring);
391 			return;
392 		}
393 		break;
394 	case FDTYPE_ASCII:
395 		for (i = 0; i < def->payloadLen && field[i]; i++)
396 			safeputchar(field[i]);
397 		return;
398 	case FDTYPE_Enumeration:
399 		value = 0;
400 		(void) memcpy((((uint8_t *)&value) + sizeof (value)
401 					- def->payloadLen),
402 					field, def->payloadLen);
403 		for (i = 0; i < def->enumCount; i++)
404 			if (def->enumTable[i].value == value) {
405 				safeputs(def->enumTable[i].text);
406 				return;
407 			}
408 
409 		errmsg = "unrecognized value";
410 		break;
411 	}
412 
413 	/* If nothing matched above, print the field in hex */
414 	for (i = 0; i < def->payloadLen; i++)
415 		output("%2.2X", field[i]);
416 
417 	/* Safely print any error message associated with the field */
418 	if (errmsg) {
419 		output(" (");
420 		safeputs(errmsg);
421 		output(")\n");
422 	}
423 }
424 
425 /*
426  * Recursively print the contents of a data element
427  */
428 static void
429 print_element(const uint8_t *data, const fru_regdef_t *def,
430     const char *parent_path, int indent)
431 {
432 	char	*path;
433 	size_t	len;
434 
435 	int	bytes = 0, i;
436 
437 
438 	indent = (xml) ? (indent + INDENT) : (2*INDENT);
439 
440 	/*
441 	 * Construct the path, or, for XML, the name, for the current
442 	 * data element
443 	 */
444 	if ((def->iterationCount == 0) &&
445 	    (def->iterationType != FRU_NOT_ITERATED)) {
446 		if (xml) {
447 			if (def->dataType == FDTYPE_Record) {
448 				len = strlen("Index_") + strlen(def->name) + 1;
449 				path = alloca(len);
450 				(void) snprintf(path, len,
451 				    "Index_%s", def->name);
452 			}
453 			else
454 				path = "Index";
455 		}
456 		else
457 			path = (char *)parent_path;
458 	} else {
459 		if (xml)
460 			path = (char *)def->name;
461 		else {
462 			len = strlen(parent_path) + sizeof ("/") +
463 			    strlen(def->name) +
464 			    (def->iterationCount ? sizeof ("[255]") : 0);
465 			path = alloca(len);
466 			bytes = snprintf(path, len,
467 			    "%s/%s", parent_path, def->name);
468 		}
469 	}
470 
471 	/*
472 	 * Handle the various categories of data elements:  iteration,
473 	 * record, and field
474 	 */
475 	if (def->iterationCount) {
476 		int		iterlen = (def->payloadLen - NUM_ITER_BYTES)/
477 						def->iterationCount,
478 				n, valid = 1;
479 
480 		uint8_t		head, num;
481 
482 		fru_regdef_t	newdef;
483 
484 
485 		/*
486 		 * Make a new element definition to describe the components
487 		 * of the iteration
488 		 */
489 		(void) memcpy(&newdef, def, sizeof (newdef));
490 		newdef.iterationCount = 0;
491 		newdef.payloadLen = iterlen;
492 
493 		/*
494 		 * Validate the contents of the iteration control bytes
495 		 */
496 		if (data[HEAD_ITER] >= def->iterationCount) {
497 			valid = 0;
498 			error(gettext("%s:  Invalid iteration head:  %d "
499 			    "(should be less than %d)\n"),
500 			    path, data[HEAD_ITER], def->iterationCount);
501 		}
502 
503 		if (data[NUM_ITER] > def->iterationCount) {
504 			valid = 0;
505 			error(gettext("%s:  Invalid iteration count:  %d "
506 			    "(should not be greater than %d)\n"),
507 			    path, data[NUM_ITER], def->iterationCount);
508 		}
509 
510 		if (data[MAX_ITER] != def->iterationCount) {
511 			valid = 0;
512 			error(gettext("%s:  Invalid iteration maximum:  %d "
513 			    "(should equal %d)\n"),
514 			    path, data[MAX_ITER], def->iterationCount);
515 		}
516 
517 		if (valid) {
518 			head = data[HEAD_ITER];
519 			num  = data[NUM_ITER];
520 		} else {
521 			head = 0;
522 			num  = def->iterationCount;
523 			error(gettext("%s:  Showing all iterations\n"), path);
524 		}
525 
526 		if (xml)
527 			output("%*s<%s>\n", indent, "", path);
528 		else
529 			output("%*s%s (%d iterations)\n", indent, "", path,
530 				num);
531 
532 		/*
533 		 * Print each component of the iteration
534 		 */
535 		for (i = head, n = 0, data += 4;
536 				n < num;
537 				i = ((i + 1) % def->iterationCount), n++) {
538 			if (!xml) (void) sprintf((path + bytes), "[%d]", n);
539 			print_element((data + i*iterlen), &newdef, path,
540 					indent);
541 		}
542 
543 		if (xml) output("%*s</%s>\n", indent, "", path);
544 
545 	} else if (def->dataType == FDTYPE_Record) {
546 		const fru_regdef_t  *component;
547 
548 		if (xml)
549 			output("%*s<%s>\n", indent, "", path);
550 		else
551 			output("%*s%s\n", indent, "", path);
552 
553 		/*
554 		 * Print each component of the record
555 		 */
556 		for (i = 0; i < def->enumCount;
557 				i++, data += component->payloadLen) {
558 			component = fru_reg_lookup_def_by_name(
559 				def->enumTable[i].text);
560 			assert(component != NULL);
561 			print_element(data, component, path, indent);
562 		}
563 
564 		if (xml) output("%*s</%s>\n", indent, "", path);
565 	} else if (xml) {
566 		/*
567 		 * Base case:  print the field formatted for XML
568 		 */
569 		char  *format = ((def == &unknown)
570 		    ? "%*s<UNKNOWN tag=\"%s\" value=\""
571 		    : "%*s<%s value=\"");
572 
573 		output(format, indent, "", path);
574 		print_field(data, def);
575 		/*CSTYLED*/
576 		output("\"/>\n");	/* \" confuses cstyle */
577 	} else {
578 		/*
579 		 * Base case:  print the field
580 		 */
581 		output("%*s%s: ", indent, "", path);
582 		print_field(data, def);
583 		output("\n");
584 	}
585 }
586 
587 /*
588  * Print the contents of a packet (i.e., a tagged data element)
589  */
590 /* ARGSUSED */
591 static int
592 print_packet(fru_tag_t *tag, uint8_t *payload, size_t length, void *args)
593 {
594 	int			tag_type = get_tag_type(tag);
595 
596 	size_t			payload_length = 0;
597 
598 	const fru_regdef_t	*def;
599 
600 
601 	/*
602 	 * Build a definition for unrecognized tags (e.g., not in libfrureg)
603 	 */
604 	if ((tag_type == -1) ||
605 	    ((payload_length = get_payload_length(tag)) != length)) {
606 		def = &unknown;
607 
608 		unknown.tagType    = -1;
609 		unknown.tagDense   = -1;
610 		unknown.payloadLen = length;
611 		unknown.dataLength = unknown.payloadLen;
612 
613 		if (tag_type == -1)
614 			(void) snprintf(tagname, sizeof (tagname), "INVALID");
615 		else
616 			(void) snprintf(tagname, sizeof (tagname),
617 			    "%s_%u_%u_%u", get_tagtype_str(tag_type),
618 			    get_tag_dense(tag), payload_length, length);
619 	} else if ((def = fru_reg_lookup_def_by_tag(*tag)) == NULL) {
620 		def = &unknown;
621 
622 		unknown.tagType    = tag_type;
623 		unknown.tagDense   = get_tag_dense(tag);
624 		unknown.payloadLen = payload_length;
625 		unknown.dataLength = unknown.payloadLen;
626 
627 		(void) snprintf(tagname, sizeof (tagname), "%s_%u_%u",
628 		    get_tagtype_str(unknown.tagType),
629 		    unknown.tagDense, payload_length);
630 	}
631 
632 
633 	/*
634 	 * Print the defined element
635 	 */
636 	print_element(payload, def, "", INDENT);
637 
638 	return (FRU_SUCCESS);
639 }
640 
641 /*
642  * Print a segment's name and the contents of each data element in the segment
643  */
644 static int
645 print_packets_in_segment(fru_seghdl_t segment, void *args)
646 {
647 	char	*name;
648 
649 	int	status;
650 
651 
652 	if ((status = fru_get_segment_name(segment, &name)) != FRU_SUCCESS) {
653 		saved_status = status;
654 		name = "";
655 		error(gettext("Error getting segment name:  %s\n"),
656 		    fru_strerror(status));
657 	}
658 
659 
660 	if (xml)
661 		output("%*s<Segment name=\"%s\">\n", INDENT, "", name);
662 	else
663 		output("%*sSEGMENT: %s\n", INDENT, "", name);
664 
665 	/* Iterate over the packets in the segment, printing the contents */
666 	if ((status = fru_for_each_packet(segment, print_packet, args))
667 	    != FRU_SUCCESS) {
668 		saved_status = status;
669 		error(gettext("Error processing data in segment \"%s\":  %s\n"),
670 			name, fru_strerror(status));
671 	}
672 
673 	if (xml) output("%*s</Segment>\n", INDENT, "");
674 
675 	free(name);
676 
677 	return (FRU_SUCCESS);
678 }
679 
680 /* ARGSUSED */
681 static void
682 print_node_path(fru_node_t fru_type, const char *path, const char *name,
683     end_node_fp_t *end_node, void **end_args)
684 {
685 	output("%s%s\n", path,
686 	    ((fru_type == FRU_NODE_CONTAINER) ? " (container)"
687 		: ((fru_type == FRU_NODE_FRU) ? " (fru)" : "")));
688 }
689 
690 /*
691  * Close the XML element for a "location" node
692  */
693 /* ARGSUSED */
694 static void
695 end_location_xml(fru_nodehdl_t node, const char *path, const char *name,
696     void *args)
697 {
698 	assert(args != NULL);
699 	output("</Location> <!-- %s -->\n", args);
700 }
701 
702 /*
703  * Close the XML element for a "fru" node
704  */
705 /* ARGSUSED */
706 static void
707 end_fru_xml(fru_nodehdl_t node, const char *path, const char *name, void *args)
708 {
709 	assert(args != NULL);
710 	output("</Fru> <!-- %s -->\n", args);
711 }
712 
713 /*
714  * Close the XML element for a "container" node
715  */
716 /* ARGSUSED */
717 static void
718 end_container_xml(fru_nodehdl_t node, const char *path, const char *name,
719     void *args)
720 {
721 	assert(args != NULL);
722 	output("</Container> <!-- %s -->\n", args);
723 }
724 
725 /*
726  * Introduce a node in XML and set the appropriate node-closing function
727  */
728 /* ARGSUSED */
729 static void
730 print_node_xml(fru_node_t fru_type, const char *path, const char *name,
731     end_node_fp_t *end_node, void **end_args)
732 {
733 	switch (fru_type) {
734 	case FRU_NODE_FRU:
735 		output("<Fru name=\"%s\">\n", name);
736 		*end_node = end_fru_xml;
737 		break;
738 	case FRU_NODE_CONTAINER:
739 		output("<Container name=\"%s\">\n", name);
740 		*end_node = end_container_xml;
741 		break;
742 	default:
743 		output("<Location name=\"%s\">\n", name);
744 		*end_node = end_location_xml;
745 		break;
746 	}
747 
748 	*end_args = (void *) name;
749 }
750 
751 /*
752  * Print node info and, where appropriate, node contents
753  */
754 /* ARGSUSED */
755 static fru_errno_t
756 process_node(fru_nodehdl_t node, const char *path, const char *name,
757 		void *args, end_node_fp_t *end_node, void **end_args)
758 {
759 	int		status;
760 
761 	fru_node_t	fru_type = FRU_NODE_UNKNOWN;
762 
763 
764 	if ((status = fru_get_node_type(node, &fru_type)) != FRU_SUCCESS) {
765 		saved_status = status;
766 		error(gettext("Error getting node type:  %s\n"),
767 			fru_strerror(status));
768 	}
769 
770 	if (containers_only) {
771 		if (fru_type != FRU_NODE_CONTAINER)
772 			return (FRU_SUCCESS);
773 		name = path;
774 	}
775 
776 	/* Introduce the node */
777 	assert(print_node != NULL);
778 	print_node(fru_type, path, name, end_node, end_args);
779 
780 	if (list_only)
781 		return (FRU_SUCCESS);
782 
783 	/* Print the contents of each packet in each segment of a container */
784 	if (fru_type == FRU_NODE_CONTAINER) {
785 		if (xml) output("<ContainerData>\n");
786 		if ((status =
787 			fru_for_each_segment(node, print_packets_in_segment,
788 						NULL))
789 		    != FRU_SUCCESS) {
790 			saved_status = status;
791 			error(gettext("Error  processing node \"%s\":  %s\n"),
792 				name, fru_strerror(status));
793 		}
794 		if (xml) output("</ContainerData>\n");
795 	}
796 
797 	return (FRU_SUCCESS);
798 }
799 
800 /*
801  * Process the node if its path matches the search path in "args"
802  */
803 /* ARGSUSED */
804 static fru_errno_t
805 process_matching_node(fru_nodehdl_t node, const char *path, const char *name,
806     void *args, end_node_fp_t *end_node, void **end_args)
807 {
808 	int  status;
809 
810 
811 	if (!fru_pathmatch(path, args))
812 		return (FRU_SUCCESS);
813 
814 	status = process_node(node, path, path, args, end_node, end_args);
815 
816 	return ((status == FRU_SUCCESS) ? FRU_WALK_TERMINATE : status);
817 }
818 
819 /*
820  * Write the trailer required for well-formed DTD-compliant XML
821  */
822 static void
823 terminate_xml()
824 {
825 	errno = 0;
826 	if (ftell(errlog) > 0) {
827 		char  c;
828 
829 		output("<ErrorLog>\n");
830 		rewind(errlog);
831 		if (!errno)
832 			while ((c = getc(errlog)) != EOF)
833 				xputchar(c);
834 		output("</ErrorLog>\n");
835 	}
836 
837 	if (errno) {
838 		/*NOTREACHED*/
839 		errlog = NULL;
840 		error(gettext("Error copying error messages to \"ErrorLog\""),
841 		    strerror(errno));
842 	}
843 
844 	output("</FRUID_XML_Tree>\n");
845 }
846 
847 /*
848  * Print available FRU ID information
849  */
850 int
851 prtfru(const char *searchpath, int containers_only_flag, int list_only_flag,
852 	int xml_flag)
853 {
854 	fru_errno_t    status;
855 
856 	fru_nodehdl_t  frutree = 0;
857 
858 
859 	/* Copy parameter flags to global flags */
860 	containers_only	= containers_only_flag;
861 	list_only	= list_only_flag;
862 	xml		= xml_flag;
863 
864 
865 	/* Help arrange for correct, efficient interleaving of output */
866 	(void) setvbuf(stderr, NULL, _IOLBF, 0);
867 
868 
869 	/* Initialize for XML--or not */
870 	if (xml) {
871 		safeputchar = xputchar;
872 		safeputs    = xputs;
873 
874 		print_node  = print_node_xml;
875 
876 		if ((errlog = tmpfile()) == NULL) {
877 			(void) fprintf(stderr,
878 			    "Error creating error log file:  %s\n",
879 			    strerror(errno));
880 			return (1);
881 		}
882 
883 		/* Output the XML preamble */
884 		output("<?xml version=\"1.0\" ?>\n"
885 		    "<!--\n"
886 		    " Copyright 2000-2002 Sun Microsystems, Inc.  "
887 		    "All rights reserved.\n"
888 		    " Use is subject to license terms.\n"
889 		    "-->\n\n"
890 		    "<!DOCTYPE FRUID_XML_Tree SYSTEM \"prtfrureg.dtd\">\n\n"
891 		    "<FRUID_XML_Tree>\n");
892 
893 		/* Arrange to always properly terminate XML */
894 		if (atexit(terminate_xml))
895 			error(gettext("Warning:  XML will not be terminated:  "
896 					"%s\n"), strerror(errno));
897 	} else
898 		print_node = print_node_path;
899 
900 
901 	/* Get the root node */
902 	if ((status = fru_get_root(&frutree)) == FRU_NODENOTFOUND) {
903 		error(gettext("This system does not provide FRU ID data\n"));
904 		return (1);
905 	} else if (status != FRU_SUCCESS) {
906 		error(gettext("Unable to access FRU ID data:  %s\n"),
907 			fru_strerror(status));
908 		return (1);
909 	}
910 
911 	/* Process the tree */
912 	if (searchpath == NULL) {
913 		status = fru_walk_tree(frutree, "", process_node, NULL);
914 	} else {
915 		status = fru_walk_tree(frutree, "", process_matching_node,
916 					(void *)searchpath);
917 		if (status == FRU_WALK_TERMINATE) {
918 			status = FRU_SUCCESS;
919 		} else if (status == FRU_SUCCESS) {
920 			error(gettext("\"%s\" not found\n"), searchpath);
921 			return (1);
922 		}
923 	}
924 
925 	if (status != FRU_SUCCESS)
926 		error(gettext("Error processing FRU tree:  %s\n"),
927 			fru_strerror(status));
928 
929 	return (((status == FRU_SUCCESS) && (saved_status == 0)) ? 0 : 1);
930 }
931