error.c@ 105770

Last change on this file since 105770 was 105420, checked in by vboxsync, 4 months ago
libxml2-2.12.6: Applied and adjusted our libxml2 changes to 2.12.6. bugref:10730
Property svn:eol-style set to `native`
File size: 39.9 KB

Line
1	/*
2	* error.c: module displaying/handling XML parser errors
3	*
4	* See Copyright for the status of this software.
5	*
6	* Daniel Veillard <daniel@veillard.com>
7	*/
8
9	#define IN_LIBXML
10	#include "libxml.h"
11
12	#include <string.h>
13	#include <stdarg.h>
14	#include <stdlib.h>
15	#include <libxml/parser.h>
16	#include <libxml/xmlerror.h>
17	#include <libxml/xmlmemory.h>
18
19	#include "private/error.h"
20	#include "private/string.h"
21
22	/************************************************************************
23	* *
24	* Error struct *
25	* *
26	************************************************************************/
27
28	static int
29	xmlVSetError(xmlError *err,
30	void *ctxt, xmlNodePtr node,
31	int domain, int code, xmlErrorLevel level,
32	const char *file, int line,
33	const char str1, const char str2, const char *str3,
34	int int1, int col,
35	const char *fmt, va_list ap)
36	{
37	char *message = NULL;
38	char *fileCopy = NULL;
39	char *str1Copy = NULL;
40	char *str2Copy = NULL;
41	char *str3Copy = NULL;
42
43	if (code == XML_ERR_OK) {
44	xmlResetError(err);
45	return(0);
46	}
47
48	/*
49	* Formatting the message
50	*/
51	if (fmt == NULL) {
52	message = xmlMemStrdup("No error message provided");
53	} else {
54	xmlChar *tmp;
55	int res;
56
57	res = xmlStrVASPrintf(&tmp, MAX_ERR_MSG_SIZE, fmt, ap);
58	if (res < 0)
59	goto err_memory;
60	message = (char *) tmp;
61	}
62	if (message == NULL)
63	goto err_memory;
64
65	if (file != NULL) {
66	fileCopy = (char ) xmlStrdup((const xmlChar ) file);
67	if (fileCopy == NULL)
68	goto err_memory;
69	}
70	if (str1 != NULL) {
71	str1Copy = (char ) xmlStrdup((const xmlChar ) str1);
72	if (str1Copy == NULL)
73	goto err_memory;
74	}
75	if (str2 != NULL) {
76	str2Copy = (char ) xmlStrdup((const xmlChar ) str2);
77	if (str2Copy == NULL)
78	goto err_memory;
79	}
80	if (str3 != NULL) {
81	str3Copy = (char ) xmlStrdup((const xmlChar ) str3);
82	if (str3Copy == NULL)
83	goto err_memory;
84	}
85
86	xmlResetError(err);
87
88	err->domain = domain;
89	err->code = code;
90	err->message = message;
91	err->level = level;
92	err->file = fileCopy;
93	err->line = line;
94	err->str1 = str1Copy;
95	err->str2 = str2Copy;
96	err->str3 = str3Copy;
97	err->int1 = int1;
98	err->int2 = col;
99	err->node = node;
100	err->ctxt = ctxt;
101
102	return(0);
103
104	err_memory:
105	xmlFree(message);
106	xmlFree(fileCopy);
107	xmlFree(str1Copy);
108	xmlFree(str2Copy);
109	xmlFree(str3Copy);
110	return(-1);
111	}
112
113	static int LIBXML_ATTR_FORMAT(14,15)
114	xmlSetError(xmlError *err,
115	void *ctxt, xmlNodePtr node,
116	int domain, int code, xmlErrorLevel level,
117	const char *file, int line,
118	const char str1, const char str2, const char *str3,
119	int int1, int col,
120	const char *fmt, ...)
121	{
122	va_list ap;
123	int res;
124
125	va_start(ap, fmt);
126	res = xmlVSetError(err, ctxt, node, domain, code, level, file, line,
127	str1, str2, str3, int1, col, fmt, ap);
128	va_end(ap);
129
130	return(res);
131	}
132
133	static int
134	xmlVUpdateError(xmlError *err,
135	void *ctxt, xmlNodePtr node,
136	int domain, int code, xmlErrorLevel level,
137	const char *file, int line,
138	const char str1, const char str2, const char *str3,
139	int int1, int col,
140	const char *fmt, va_list ap)
141	{
142	int res;
143
144	/*
145	* Find first element parent.
146	*/
147	if (node != NULL) {
148	int i;
149
150	for (i = 0; i < 10; i++) {
151	if ((node->type == XML_ELEMENT_NODE) \|\|
152	(node->parent == NULL))
153	break;
154	node = node->parent;
155	}
156	}
157
158	/*
159	* Get file and line from node.
160	*/
161	if (node != NULL) {
162	if ((file == NULL) && (node->doc != NULL))
163	file = (const char *) node->doc->URL;
164
165	if (line == 0) {
166	if (node->type == XML_ELEMENT_NODE)
167	line = node->line;
168	if ((line == 0) \|\| (line == 65535))
169	line = xmlGetLineNo(node);
170	}
171	}
172
173	res = xmlVSetError(err, ctxt, node, domain, code, level, file, line,
174	str1, str2, str3, int1, col, fmt, ap);
175
176	return(res);
177	}
178
179	/************************************************************************
180	* *
181	* Handling of out of context errors *
182	* *
183	************************************************************************/
184
185	/**
186	* xmlGenericErrorDefaultFunc:
187	* @ctx: an error context
188	* @msg: the message to display/transmit
189	* @...: extra parameters for the message display
190	*
191	* Default handler for out of context error messages.
192	*/
193	void
194	xmlGenericErrorDefaultFunc(void ctx ATTRIBUTE_UNUSED, const char msg, ...) {
195	va_list args;
196
197	if (xmlGenericErrorContext == NULL)
198	xmlGenericErrorContext = (void *) stderr;
199
200	va_start(args, msg);
201	vfprintf((FILE *)xmlGenericErrorContext, msg, args);
202	va_end(args);
203	}
204
205	/**
206	* initGenericErrorDefaultFunc:
207	* @handler: the handler
208	*
209	* DEPRECATED: Use xmlSetGenericErrorFunc.
210	*
211	* Set or reset (if NULL) the default handler for generic errors
212	* to the builtin error function.
213	*/
214	void
215	initGenericErrorDefaultFunc(xmlGenericErrorFunc * handler)
216	{
217	if (handler == NULL)
218	xmlGenericError = xmlGenericErrorDefaultFunc;
219	else
220	xmlGenericError = (*handler);
221	}
222
223	/**
224	* xmlSetGenericErrorFunc:
225	* @ctx: the new error handling context
226	* @handler: the new handler function
227	*
228	* DEPRECATED: See xmlSetStructuredErrorFunc for alternatives.
229	*
230	* Set the global "generic" handler and context for error messages.
231	* The generic error handler will only receive fragments of error
232	* messages which should be concatenated or printed to a stream.
233	*
234	* If handler is NULL, use the built-in default handler which prints
235	* to stderr.
236	*
237	* Since this is a global setting, it's a good idea to reset the
238	* error handler to its default value after collecting the errors
239	* you're interested in.
240	*
241	* For multi-threaded applications, this must be set separately for
242	* each thread.
243	*/
244	void
245	xmlSetGenericErrorFunc(void *ctx, xmlGenericErrorFunc handler) {
246	xmlGenericErrorContext = ctx;
247	if (handler != NULL)
248	xmlGenericError = handler;
249	else
250	xmlGenericError = xmlGenericErrorDefaultFunc;
251	}
252
253	/**
254	* xmlSetStructuredErrorFunc:
255	* @ctx: the new error handling context
256	* @handler: the new handler function
257	*
258	* DEPRECATED: Use a per-context error handler.
259	*
260	* It's recommended to use the per-context error handlers instead:
261	*
262	* - xmlCtxtSetErrorHandler (since 2.13.0)
263	* - xmlTextReaderSetStructuredErrorHandler
264	* - xmlXPathSetErrorHandler (since 2.13.0)
265	* - xmlXIncludeSetErrorHandler (since 2.13.0)
266	* - xmlSchemaSetParserStructuredErrors
267	* - xmlSchemaSetValidStructuredErrors
268	* - xmlRelaxNGSetParserStructuredErrors
269	* - xmlRelaxNGSetValidStructuredErrors
270	*
271	* Set the global "structured" handler and context for error messages.
272	* If handler is NULL, the error handler is deactivated.
273	*
274	* The structured error handler takes precedence over "generic"
275	* handlers, even per-context generic handlers.
276	*
277	* Since this is a global setting, it's a good idea to deactivate the
278	* error handler after collecting the errors you're interested in.
279	*
280	* For multi-threaded applications, this must be set separately for
281	* each thread.
282	*/
283	void
284	xmlSetStructuredErrorFunc(void *ctx, xmlStructuredErrorFunc handler) {
285	xmlStructuredErrorContext = ctx;
286	xmlStructuredError = handler;
287	}
288
289	/************************************************************************
290	* *
291	* Handling of parsing errors *
292	* *
293	************************************************************************/
294
295	/**
296	* xmlParserPrintFileInfo:
297	* @input: an xmlParserInputPtr input
298	*
299	* DEPRECATED: Use xmlFormatError.
300	*
301	* Displays the associated file and line information for the current input
302	*/
303
304	void
305	xmlParserPrintFileInfo(xmlParserInputPtr input) {
306	if (input != NULL) {
307	if (input->filename)
308	xmlGenericError(xmlGenericErrorContext,
309	"%s:%d: ", input->filename,
310	input->line);
311	else
312	xmlGenericError(xmlGenericErrorContext,
313	"Entity: line %d: ", input->line);
314	}
315	}
316
317	/**
318	* xmlParserPrintFileContextInternal:
319	* @input: an xmlParserInputPtr input
320	*
321	* Displays current context within the input content for error tracking
322	*/
323
324	static void
325	xmlParserPrintFileContextInternal(xmlParserInputPtr input ,
326	xmlGenericErrorFunc channel, void *data ) {
327	const xmlChar cur, base, *start;
328	unsigned int n, col; /* GCC warns if signed, because compared with sizeof() */
329	xmlChar content[81]; /* space for 80 chars + line terminator */
330	xmlChar *ctnt;
331
332	if ((input == NULL) \|\| (input->cur == NULL))
333	return;
334
335	cur = input->cur;
336	base = input->base;
337	/* skip backwards over any end-of-lines */
338	while ((cur > base) && (((cur) == '\n') \|\| ((cur) == '\r'))) {
339	cur--;
340	}
341	n = 0;
342	/* search backwards for beginning-of-line (to max buff size) */
343	while ((n < sizeof(content) - 1) && (cur > base) &&
344	(cur != '\n') && (cur != '\r')) {
345	cur--;
346	n++;
347	}
348	if ((n > 0) && ((cur == '\n') \|\| (cur == '\r'))) {
349	cur++;
350	} else {
351	/* skip over continuation bytes */
352	while ((cur < input->cur) && ((*cur & 0xC0) == 0x80))
353	cur++;
354	}
355	/* calculate the error position in terms of the current position */
356	col = input->cur - cur;
357	/* search forward for end-of-line (to max buff size) */
358	n = 0;
359	start = cur;
360	/* copy selected text to our buffer */
361	while ((cur != 0) && ((cur) != '\n') && (*(cur) != '\r')) {
362	int len = input->end - cur;
363	int c = xmlGetUTF8Char(cur, &len);
364
365	if ((c < 0) \|\| (n + len > sizeof(content)-1))
366	break;
367	cur += len;
368	n += len;
369	}
370	memcpy(content, start, n);
371	content[n] = 0;
372	/* print out the selected text */
373	channel(data ,"%s\n", content);
374	/* create blank line with problem pointer */
375	n = 0;
376	ctnt = content;
377	/* (leave buffer space for pointer + line terminator) */
378	while ((n<col) && (n++ < sizeof(content)-2) && (*ctnt != 0)) {
379	if (*(ctnt) != '\t')
380	*(ctnt) = ' ';
381	ctnt++;
382	}
383	*ctnt++ = '^';
384	*ctnt = 0;
385	channel(data ,"%s\n", content);
386	}
387
388	/**
389	* xmlParserPrintFileContext:
390	* @input: an xmlParserInputPtr input
391	*
392	* DEPRECATED: Use xmlFormatError.
393	*
394	* Displays current context within the input content for error tracking
395	*/
396	void
397	xmlParserPrintFileContext(xmlParserInputPtr input) {
398	xmlParserPrintFileContextInternal(input, xmlGenericError,
399	xmlGenericErrorContext);
400	}
401
402	/**
403	* xmlFormatError:
404	* @err: the error
405	* @channel: callback
406	* @data: user data for callback
407	*
408	* Report a formatted error to a printf-like callback.
409	*
410	* This can result in a verbose multi-line report including additional
411	* information from the parser context.
412	*
413	* Available since 2.13.0.
414	*/
415	void
416	xmlFormatError(const xmlError err, xmlGenericErrorFunc channel, void data)
417	{
418	const char *message;
419	const char *file;
420	int line;
421	int code;
422	int domain;
423	const xmlChar *name = NULL;
424	xmlNodePtr node;
425	xmlErrorLevel level;
426	xmlParserCtxtPtr ctxt = NULL;
427	xmlParserInputPtr input = NULL;
428	xmlParserInputPtr cur = NULL;
429
430	if ((err == NULL) \|\| (channel == NULL))
431	return;
432
433	message = err->message;
434	file = err->file;
435	line = err->line;
436	code = err->code;
437	domain = err->domain;
438	level = err->level;
439	node = err->node;
440
441	if (code == XML_ERR_OK)
442	return;
443
444	if ((domain == XML_FROM_PARSER) \|\| (domain == XML_FROM_HTML) \|\|
445	(domain == XML_FROM_DTD) \|\| (domain == XML_FROM_NAMESPACE) \|\|
446	(domain == XML_FROM_IO) \|\| (domain == XML_FROM_VALID)) {
447	ctxt = err->ctxt;
448	}
449
450	if ((node != NULL) && (node->type == XML_ELEMENT_NODE) &&
451	(domain != XML_FROM_SCHEMASV))
452	name = node->name;
453
454	/*
455	* Maintain the compatibility with the legacy error handling
456	*/
457	if ((ctxt != NULL) && (ctxt->input != NULL)) {
458	input = ctxt->input;
459	if ((input->filename == NULL) &&
460	(ctxt->inputNr > 1)) {
461	cur = input;
462	input = ctxt->inputTab[ctxt->inputNr - 2];
463	}
464	if (input->filename)
465	channel(data, "%s:%d: ", input->filename, input->line);
466	else if ((line != 0) && (domain == XML_FROM_PARSER))
467	channel(data, "Entity: line %d: ", input->line);
468	} else {
469	if (file != NULL)
470	channel(data, "%s:%d: ", file, line);
471	else if ((line != 0) &&
472	((domain == XML_FROM_PARSER) \|\| (domain == XML_FROM_SCHEMASV)\|\|
473	(domain == XML_FROM_SCHEMASP)\|\|(domain == XML_FROM_DTD) \|\|
474	(domain == XML_FROM_RELAXNGP)\|\|(domain == XML_FROM_RELAXNGV)))
475	channel(data, "Entity: line %d: ", line);
476	}
477	if (name != NULL) {
478	channel(data, "element %s: ", name);
479	}
480	switch (domain) {
481	case XML_FROM_PARSER:
482	channel(data, "parser ");
483	break;
484	case XML_FROM_NAMESPACE:
485	channel(data, "namespace ");
486	break;
487	case XML_FROM_DTD:
488	case XML_FROM_VALID:
489	channel(data, "validity ");
490	break;
491	case XML_FROM_HTML:
492	channel(data, "HTML parser ");
493	break;
494	case XML_FROM_MEMORY:
495	channel(data, "memory ");
496	break;
497	case XML_FROM_OUTPUT:
498	channel(data, "output ");
499	break;
500	case XML_FROM_IO:
501	channel(data, "I/O ");
502	break;
503	case XML_FROM_XINCLUDE:
504	channel(data, "XInclude ");
505	break;
506	case XML_FROM_XPATH:
507	channel(data, "XPath ");
508	break;
509	case XML_FROM_XPOINTER:
510	channel(data, "parser ");
511	break;
512	case XML_FROM_REGEXP:
513	channel(data, "regexp ");
514	break;
515	case XML_FROM_MODULE:
516	channel(data, "module ");
517	break;
518	case XML_FROM_SCHEMASV:
519	channel(data, "Schemas validity ");
520	break;
521	case XML_FROM_SCHEMASP:
522	channel(data, "Schemas parser ");
523	break;
524	case XML_FROM_RELAXNGP:
525	channel(data, "Relax-NG parser ");
526	break;
527	case XML_FROM_RELAXNGV:
528	channel(data, "Relax-NG validity ");
529	break;
530	case XML_FROM_CATALOG:
531	channel(data, "Catalog ");
532	break;
533	case XML_FROM_C14N:
534	channel(data, "C14N ");
535	break;
536	case XML_FROM_XSLT:
537	channel(data, "XSLT ");
538	break;
539	case XML_FROM_I18N:
540	channel(data, "encoding ");
541	break;
542	case XML_FROM_SCHEMATRONV:
543	channel(data, "schematron ");
544	break;
545	case XML_FROM_BUFFER:
546	channel(data, "internal buffer ");
547	break;
548	case XML_FROM_URI:
549	channel(data, "URI ");
550	break;
551	default:
552	break;
553	}
554	switch (level) {
555	case XML_ERR_NONE:
556	channel(data, ": ");
557	break;
558	case XML_ERR_WARNING:
559	channel(data, "warning : ");
560	break;
561	case XML_ERR_ERROR:
562	channel(data, "error : ");
563	break;
564	case XML_ERR_FATAL:
565	channel(data, "error : ");
566	break;
567	}
568	if (message != NULL) {
569	int len;
570	len = xmlStrlen((const xmlChar *) message);
571	if ((len > 0) && (message[len - 1] != '\n'))
572	channel(data, "%s\n", message);
573	else
574	channel(data, "%s", message);
575	} else {
576	channel(data, "%s\n", "No error message provided");
577	}
578
579	if (ctxt != NULL) {
580	if ((input != NULL) &&
581	((input->buf == NULL) \|\| (input->buf->encoder == NULL)) &&
582	(code == XML_ERR_INVALID_ENCODING) &&
583	(input->cur < input->end)) {
584	int i;
585
586	channel(data, "Bytes:");
587	for (i = 0; i < 4; i++) {
588	if (input->cur + i >= input->end)
589	break;
590	channel(data, " 0x%02X", input->cur[i]);
591	}
592	channel(data, "\n");
593	}
594
595	xmlParserPrintFileContextInternal(input, channel, data);
596
597	if (cur != NULL) {
598	if (cur->filename)
599	channel(data, "%s:%d: \n", cur->filename, cur->line);
600	else if ((line != 0) && (domain == XML_FROM_PARSER))
601	channel(data, "Entity: line %d: \n", cur->line);
602	xmlParserPrintFileContextInternal(cur, channel, data);
603	}
604	}
605	if ((domain == XML_FROM_XPATH) && (err->str1 != NULL) &&
606	(err->int1 < 100) &&
607	(err->int1 < xmlStrlen((const xmlChar *)err->str1))) {
608	xmlChar buf[150];
609	int i;
610
611	channel(data, "%s\n", err->str1);
612	for (i=0;i < err->int1;i++)
613	buf[i] = ' ';
614	buf[i++] = '^';
615	buf[i] = 0;
616	channel(data, "%s\n", buf);
617	}
618	}
619
620	/**
621	* xmlRaiseMemoryError:
622	* @schannel: the structured callback channel
623	* @channel: the old callback channel
624	* @data: the callback data
625	* @domain: the domain for the error
626	* @error: optional error struct to be filled
627	*
628	* Update the global and optional error structure, then forward the
629	* error to an error handler.
630	*
631	* This function doesn't make memory allocations which are likely
632	* to fail after an OOM error.
633	*/
634	void
635	xmlRaiseMemoryError(xmlStructuredErrorFunc schannel, xmlGenericErrorFunc channel,
636	void data, int domain, xmlError error)
637	{
638	xmlError *lastError = &xmlLastError;
639
640	xmlResetLastError();
641	lastError->domain = domain;
642	lastError->code = XML_ERR_NO_MEMORY;
643	lastError->level = XML_ERR_FATAL;
644
645	if (error != NULL) {
646	xmlResetError(error);
647	error->domain = domain;
648	error->code = XML_ERR_NO_MEMORY;
649	error->level = XML_ERR_FATAL;
650	}
651
652	if (schannel != NULL) {
653	schannel(data, lastError);
654	} else if (xmlStructuredError != NULL) {
655	xmlStructuredError(xmlStructuredErrorContext, lastError);
656	} else if (channel != NULL) {
657	channel(data, "libxml2: out of memory\n");
658	}
659	}
660
661	/**
662	* xmlVRaiseError:
663	* @schannel: the structured callback channel
664	* @channel: the old callback channel
665	* @data: the callback data
666	* @ctx: the parser context or NULL
667	* @node: the current node or NULL
668	* @domain: the domain for the error
669	* @code: the code for the error
670	* @level: the xmlErrorLevel for the error
671	* @file: the file source of the error (or NULL)
672	* @line: the line of the error or 0 if N/A
673	* @str1: extra string info
674	* @str2: extra string info
675	* @str3: extra string info
676	* @int1: extra int info
677	* @col: column number of the error or 0 if N/A
678	* @msg: the message to display/transmit
679	* @ap: extra parameters for the message display
680	*
681	* Update the appropriate global or contextual error structure,
682	* then forward the error message down the parser or generic
683	* error callback handler
684	*
685	* Returns 0 on success, -1 if a memory allocation failed.
686	*/
687	int
688	xmlVRaiseError(xmlStructuredErrorFunc schannel,
689	xmlGenericErrorFunc channel, void data, void ctx,
690	xmlNode *node, int domain, int code, xmlErrorLevel level,
691	const char file, int line, const char str1,
692	const char str2, const char str3, int int1, int col,
693	const char *msg, va_list ap)
694	{
695	xmlParserCtxtPtr ctxt = NULL;
696	/* xmlLastError is a macro retrieving the per-thread global. */
697	xmlErrorPtr lastError = &xmlLastError;
698	xmlErrorPtr to = lastError;
699
700	if (code == XML_ERR_OK)
701	return(0);
702	#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
703	if (code == XML_ERR_INTERNAL_ERROR) {
704	fprintf(stderr, "Unexpected error: %d\n", code);
705	abort();
706	}
707	#endif
708	if ((xmlGetWarningsDefaultValue == 0) && (level == XML_ERR_WARNING))
709	return(0);
710
711	if ((domain == XML_FROM_PARSER) \|\| (domain == XML_FROM_HTML) \|\|
712	(domain == XML_FROM_DTD) \|\| (domain == XML_FROM_NAMESPACE) \|\|
713	(domain == XML_FROM_IO) \|\| (domain == XML_FROM_VALID)) {
714	ctxt = (xmlParserCtxtPtr) ctx;
715
716	if (ctxt != NULL)
717	to = &ctxt->lastError;
718	}
719
720	if (xmlVUpdateError(to, ctxt, node, domain, code, level, file, line,
721	str1, str2, str3, int1, col, msg, ap))
722	return(-1);
723
724	if (to != lastError) {
725	if (xmlCopyError(to, lastError) < 0)
726	return(-1);
727	}
728
729	if (schannel != NULL) {
730	schannel(data, to);
731	} else if (xmlStructuredError != NULL) {
732	xmlStructuredError(xmlStructuredErrorContext, to);
733	} else if (channel != NULL) {
734	/* Don't invoke legacy error handlers */
735	if ((channel == xmlGenericErrorDefaultFunc) \|\|
736	(channel == xmlParserError) \|\|
737	(channel == xmlParserWarning) \|\|
738	(channel == xmlParserValidityError) \|\|
739	(channel == xmlParserValidityWarning))
740	xmlFormatError(to, xmlGenericError, xmlGenericErrorContext);
741	else
742	channel(data, "%s", to->message);
743	}
744
745	return(0);
746	}
747
748	/**
749	* __xmlRaiseError:
750	* @schannel: the structured callback channel
751	* @channel: the old callback channel
752	* @data: the callback data
753	* @ctx: the parser context or NULL
754	* @nod: the node or NULL
755	* @domain: the domain for the error
756	* @code: the code for the error
757	* @level: the xmlErrorLevel for the error
758	* @file: the file source of the error (or NULL)
759	* @line: the line of the error or 0 if N/A
760	* @str1: extra string info
761	* @str2: extra string info
762	* @str3: extra string info
763	* @int1: extra int info
764	* @col: column number of the error or 0 if N/A
765	* @msg: the message to display/transmit
766	* @...: extra parameters for the message display
767	*
768	* Update the appropriate global or contextual error structure,
769	* then forward the error message down the parser or generic
770	* error callback handler
771	*
772	* Returns 0 on success, -1 if a memory allocation failed.
773	*/
774	int
775	__xmlRaiseError(xmlStructuredErrorFunc schannel,
776	xmlGenericErrorFunc channel, void data, void ctx,
777	xmlNode *node, int domain, int code, xmlErrorLevel level,
778	const char file, int line, const char str1,
779	const char str2, const char str3, int int1, int col,
780	const char *msg, ...)
781	{
782	va_list ap;
783	int res;
784
785	va_start(ap, msg);
786	res = xmlVRaiseError(schannel, channel, data, ctx, node, domain, code,
787	level, file, line, str1, str2, str3, int1, col, msg,
788	ap);
789	va_end(ap);
790
791	return(res);
792	}
793
794	static void
795	xmlVFormatLegacyError(void ctx, const char level,
796	const char *fmt, va_list ap) {
797	xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
798	xmlParserInputPtr input = NULL;
799	xmlParserInputPtr cur = NULL;
800	xmlChar *str = NULL;
801
802	if (ctxt != NULL) {
803	input = ctxt->input;
804	if ((input != NULL) && (input->filename == NULL) &&
805	(ctxt->inputNr > 1)) {
806	cur = input;
807	input = ctxt->inputTab[ctxt->inputNr - 2];
808	}
809	xmlParserPrintFileInfo(input);
810	}
811
812	xmlGenericError(xmlGenericErrorContext, "%s: ", level);
813
814	xmlStrVASPrintf(&str, MAX_ERR_MSG_SIZE, fmt, ap);
815	if (str != NULL) {
816	xmlGenericError(xmlGenericErrorContext, "%s", (char *) str);
817	xmlFree(str);
818	}
819
820	if (ctxt != NULL) {
821	xmlParserPrintFileContext(input);
822	if (cur != NULL) {
823	xmlParserPrintFileInfo(cur);
824	xmlGenericError(xmlGenericErrorContext, "\n");
825	xmlParserPrintFileContext(cur);
826	}
827	}
828	}
829
830	/**
831	* xmlParserError:
832	* @ctx: an XML parser context
833	* @msg: the message to display/transmit
834	* @...: extra parameters for the message display
835	*
836	* Display and format an error messages, gives file, line, position and
837	* extra parameters.
838	*/
839	void
840	xmlParserError(void ctx, const char msg ATTRIBUTE_UNUSED, ...)
841	{
842	va_list ap;
843
844	va_start(ap, msg);
845	xmlVFormatLegacyError(ctx, "error", msg, ap);
846	va_end(ap);
847	}
848
849	/**
850	* xmlParserWarning:
851	* @ctx: an XML parser context
852	* @msg: the message to display/transmit
853	* @...: extra parameters for the message display
854	*
855	* Display and format a warning messages, gives file, line, position and
856	* extra parameters.
857	*/
858	void
859	xmlParserWarning(void ctx, const char msg ATTRIBUTE_UNUSED, ...)
860	{
861	va_list ap;
862
863	va_start(ap, msg);
864	xmlVFormatLegacyError(ctx, "warning", msg, ap);
865	va_end(ap);
866	}
867
868	/**
869	* xmlParserValidityError:
870	* @ctx: an XML parser context
871	* @msg: the message to display/transmit
872	* @...: extra parameters for the message display
873	*
874	* Display and format an validity error messages, gives file,
875	* line, position and extra parameters.
876	*/
877	void
878	xmlParserValidityError(void ctx, const char msg ATTRIBUTE_UNUSED, ...)
879	{
880	va_list ap;
881
882	va_start(ap, msg);
883	xmlVFormatLegacyError(ctx, "validity error", msg, ap);
884	va_end(ap);
885	}
886
887	/**
888	* xmlParserValidityWarning:
889	* @ctx: an XML parser context
890	* @msg: the message to display/transmit
891	* @...: extra parameters for the message display
892	*
893	* Display and format a validity warning messages, gives file, line,
894	* position and extra parameters.
895	*/
896	void
897	xmlParserValidityWarning(void ctx, const char msg ATTRIBUTE_UNUSED, ...)
898	{
899	va_list ap;
900
901	va_start(ap, msg);
902	xmlVFormatLegacyError(ctx, "validity warning", msg, ap);
903	va_end(ap);
904	}
905
906
907	/************************************************************************
908	* *
909	* Extended Error Handling *
910	* *
911	************************************************************************/
912
913	/**
914	* xmlGetLastError:
915	*
916	* Get the last global error registered. This is per thread if compiled
917	* with thread support.
918	*
919	* Returns a pointer to the error
920	*/
921	const xmlError *
922	xmlGetLastError(void)
923	{
924	if (xmlLastError.code == XML_ERR_OK)
925	return (NULL);
926	return (&xmlLastError);
927	}
928
929	/**
930	* xmlResetError:
931	* @err: pointer to the error.
932	*
933	* Cleanup the error.
934	*/
935	void
936	xmlResetError(xmlErrorPtr err)
937	{
938	if (err == NULL)
939	return;
940	if (err->code == XML_ERR_OK)
941	return;
942	if (err->message != NULL)
943	xmlFree(err->message);
944	if (err->file != NULL)
945	xmlFree(err->file);
946	if (err->str1 != NULL)
947	xmlFree(err->str1);
948	if (err->str2 != NULL)
949	xmlFree(err->str2);
950	if (err->str3 != NULL)
951	xmlFree(err->str3);
952	memset(err, 0, sizeof(xmlError));
953	err->code = XML_ERR_OK;
954	}
955
956	/**
957	* xmlResetLastError:
958	*
959	* Cleanup the last global error registered. For parsing error
960	* this does not change the well-formedness result.
961	*/
962	void
963	xmlResetLastError(void)
964	{
965	if (xmlLastError.code == XML_ERR_OK)
966	return;
967	xmlResetError(&xmlLastError);
968	}
969
970	/**
971	* xmlCtxtGetLastError:
972	* @ctx: an XML parser context
973	*
974	* Get the last parsing error registered.
975	*
976	* Returns NULL if no error occurred or a pointer to the error
977	*/
978	const xmlError *
979	xmlCtxtGetLastError(void *ctx)
980	{
981	xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
982
983	if (ctxt == NULL)
984	return (NULL);
985	if (ctxt->lastError.code == XML_ERR_OK)
986	return (NULL);
987	return (&ctxt->lastError);
988	}
989
990	/**
991	* xmlCtxtResetLastError:
992	* @ctx: an XML parser context
993	*
994	* Cleanup the last global error registered. For parsing error
995	* this does not change the well-formedness result.
996	*/
997	void
998	xmlCtxtResetLastError(void *ctx)
999	{
1000	xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
1001
1002	if (ctxt == NULL)
1003	return;
1004	ctxt->errNo = XML_ERR_OK;
1005	if (ctxt->lastError.code == XML_ERR_OK)
1006	return;
1007	xmlResetError(&ctxt->lastError);
1008	}
1009
1010	/**
1011	* xmlCopyError:
1012	* @from: a source error
1013	* @to: a target error
1014	*
1015	* Save the original error to the new place.
1016	*
1017	* Returns 0 in case of success and -1 in case of error.
1018	*/
1019	int
1020	xmlCopyError(const xmlError *from, xmlErrorPtr to) {
1021	const char *fmt = NULL;
1022
1023	if ((from == NULL) \|\| (to == NULL))
1024	return(-1);
1025
1026	if (from->message != NULL)
1027	fmt = "%s";
1028
1029	return(xmlSetError(to, from->ctxt, from->node,
1030	from->domain, from->code, from->level,
1031	from->file, from->line,
1032	from->str1, from->str2, from->str3,
1033	from->int1, from->int2,
1034	fmt, from->message));
1035	}
1036
1037	/**
1038	* xmlErrString:
1039	* @code: an xmlParserErrors code
1040	*
1041	* Returns an error message for a code.
1042	*/
1043	const char *
1044	xmlErrString(xmlParserErrors code) {
1045	const char *errmsg;
1046
1047	switch (code) {
1048	case XML_ERR_INVALID_HEX_CHARREF:
1049	errmsg = "CharRef: invalid hexadecimal value";
1050	break;
1051	case XML_ERR_INVALID_DEC_CHARREF:
1052	errmsg = "CharRef: invalid decimal value";
1053	break;
1054	case XML_ERR_INVALID_CHARREF:
1055	errmsg = "CharRef: invalid value";
1056	break;
1057	case XML_ERR_INTERNAL_ERROR:
1058	errmsg = "internal error";
1059	break;
1060	case XML_ERR_PEREF_AT_EOF:
1061	errmsg = "PEReference at end of document";
1062	break;
1063	case XML_ERR_PEREF_IN_PROLOG:
1064	errmsg = "PEReference in prolog";
1065	break;
1066	case XML_ERR_PEREF_IN_EPILOG:
1067	errmsg = "PEReference in epilog";
1068	break;
1069	case XML_ERR_PEREF_NO_NAME:
1070	errmsg = "PEReference: no name";
1071	break;
1072	case XML_ERR_PEREF_SEMICOL_MISSING:
1073	errmsg = "PEReference: expecting ';'";
1074	break;
1075	case XML_ERR_ENTITY_LOOP:
1076	errmsg = "Detected an entity reference loop";
1077	break;
1078	case XML_ERR_ENTITY_NOT_STARTED:
1079	errmsg = "EntityValue: \" or ' expected";
1080	break;
1081	case XML_ERR_ENTITY_PE_INTERNAL:
1082	errmsg = "PEReferences forbidden in internal subset";
1083	break;
1084	case XML_ERR_ENTITY_NOT_FINISHED:
1085	errmsg = "EntityValue: \" or ' expected";
1086	break;
1087	case XML_ERR_ATTRIBUTE_NOT_STARTED:
1088	errmsg = "AttValue: \" or ' expected";
1089	break;
1090	case XML_ERR_LT_IN_ATTRIBUTE:
1091	errmsg = "Unescaped '<' not allowed in attributes values";
1092	break;
1093	case XML_ERR_LITERAL_NOT_STARTED:
1094	errmsg = "SystemLiteral \" or ' expected";
1095	break;
1096	case XML_ERR_LITERAL_NOT_FINISHED:
1097	errmsg = "Unfinished System or Public ID \" or ' expected";
1098	break;
1099	case XML_ERR_MISPLACED_CDATA_END:
1100	errmsg = "Sequence ']]>' not allowed in content";
1101	break;
1102	case XML_ERR_URI_REQUIRED:
1103	errmsg = "SYSTEM or PUBLIC, the URI is missing";
1104	break;
1105	case XML_ERR_PUBID_REQUIRED:
1106	errmsg = "PUBLIC, the Public Identifier is missing";
1107	break;
1108	case XML_ERR_HYPHEN_IN_COMMENT:
1109	errmsg = "Comment must not contain '--' (double-hyphen)";
1110	break;
1111	case XML_ERR_PI_NOT_STARTED:
1112	errmsg = "xmlParsePI : no target name";
1113	break;
1114	case XML_ERR_RESERVED_XML_NAME:
1115	errmsg = "Invalid PI name";
1116	break;
1117	case XML_ERR_NOTATION_NOT_STARTED:
1118	errmsg = "NOTATION: Name expected here";
1119	break;
1120	case XML_ERR_NOTATION_NOT_FINISHED:
1121	errmsg = "'>' required to close NOTATION declaration";
1122	break;
1123	case XML_ERR_VALUE_REQUIRED:
1124	errmsg = "Entity value required";
1125	break;
1126	case XML_ERR_URI_FRAGMENT:
1127	errmsg = "Fragment not allowed";
1128	break;
1129	case XML_ERR_ATTLIST_NOT_STARTED:
1130	errmsg = "'(' required to start ATTLIST enumeration";
1131	break;
1132	case XML_ERR_NMTOKEN_REQUIRED:
1133	errmsg = "NmToken expected in ATTLIST enumeration";
1134	break;
1135	case XML_ERR_ATTLIST_NOT_FINISHED:
1136	errmsg = "')' required to finish ATTLIST enumeration";
1137	break;
1138	case XML_ERR_MIXED_NOT_STARTED:
1139	errmsg = "MixedContentDecl : '\|' or ')*' expected";
1140	break;
1141	case XML_ERR_PCDATA_REQUIRED:
1142	errmsg = "MixedContentDecl : '#PCDATA' expected";
1143	break;
1144	case XML_ERR_ELEMCONTENT_NOT_STARTED:
1145	errmsg = "ContentDecl : Name or '(' expected";
1146	break;
1147	case XML_ERR_ELEMCONTENT_NOT_FINISHED:
1148	errmsg = "ContentDecl : ',' '\|' or ')' expected";
1149	break;
1150	case XML_ERR_PEREF_IN_INT_SUBSET:
1151	errmsg =
1152	"PEReference: forbidden within markup decl in internal subset";
1153	break;
1154	case XML_ERR_GT_REQUIRED:
1155	errmsg = "expected '>'";
1156	break;
1157	case XML_ERR_CONDSEC_INVALID:
1158	errmsg = "XML conditional section '[' expected";
1159	break;
1160	case XML_ERR_INT_SUBSET_NOT_FINISHED:
1161	errmsg = "Content error in the internal subset";
1162	break;
1163	case XML_ERR_EXT_SUBSET_NOT_FINISHED:
1164	errmsg = "Content error in the external subset";
1165	break;
1166	case XML_ERR_CONDSEC_INVALID_KEYWORD:
1167	errmsg =
1168	"conditional section INCLUDE or IGNORE keyword expected";
1169	break;
1170	case XML_ERR_CONDSEC_NOT_FINISHED:
1171	errmsg = "XML conditional section not closed";
1172	break;
1173	case XML_ERR_XMLDECL_NOT_STARTED:
1174	errmsg = "Text declaration '<?xml' required";
1175	break;
1176	case XML_ERR_XMLDECL_NOT_FINISHED:
1177	errmsg = "parsing XML declaration: '?>' expected";
1178	break;
1179	case XML_ERR_EXT_ENTITY_STANDALONE:
1180	errmsg = "external parsed entities cannot be standalone";
1181	break;
1182	case XML_ERR_ENTITYREF_SEMICOL_MISSING:
1183	errmsg = "EntityRef: expecting ';'";
1184	break;
1185	case XML_ERR_DOCTYPE_NOT_FINISHED:
1186	errmsg = "DOCTYPE improperly terminated";
1187	break;
1188	case XML_ERR_LTSLASH_REQUIRED:
1189	errmsg = "EndTag: '</' not found";
1190	break;
1191	case XML_ERR_EQUAL_REQUIRED:
1192	errmsg = "expected '='";
1193	break;
1194	case XML_ERR_STRING_NOT_CLOSED:
1195	errmsg = "String not closed expecting \" or '";
1196	break;
1197	case XML_ERR_STRING_NOT_STARTED:
1198	errmsg = "String not started expecting ' or \"";
1199	break;
1200	case XML_ERR_ENCODING_NAME:
1201	errmsg = "Invalid XML encoding name";
1202	break;
1203	case XML_ERR_STANDALONE_VALUE:
1204	errmsg = "standalone accepts only 'yes' or 'no'";
1205	break;
1206	case XML_ERR_DOCUMENT_EMPTY:
1207	errmsg = "Document is empty";
1208	break;
1209	case XML_ERR_DOCUMENT_END:
1210	errmsg = "Extra content at the end of the document";
1211	break;
1212	case XML_ERR_NOT_WELL_BALANCED:
1213	errmsg = "chunk is not well balanced";
1214	break;
1215	case XML_ERR_EXTRA_CONTENT:
1216	errmsg = "extra content at the end of well balanced chunk";
1217	break;
1218	case XML_ERR_VERSION_MISSING:
1219	errmsg = "Malformed declaration expecting version";
1220	break;
1221	case XML_ERR_NAME_TOO_LONG:
1222	errmsg = "Name too long";
1223	break;
1224	case XML_ERR_INVALID_ENCODING:
1225	errmsg = "Invalid bytes in character encoding";
1226	break;
1227	case XML_ERR_RESOURCE_LIMIT:
1228	errmsg = "Resource limit exceeded";
1229	break;
1230	case XML_ERR_ARGUMENT:
1231	errmsg = "Invalid argument";
1232	break;
1233	case XML_ERR_SYSTEM:
1234	errmsg = "Out of system resources";
1235	break;
1236	case XML_ERR_REDECL_PREDEF_ENTITY:
1237	errmsg = "Invalid redeclaration of predefined entity";
1238	break;
1239	case XML_ERR_UNSUPPORTED_ENCODING:
1240	errmsg = "Unsupported encoding";
1241	break;
1242	case XML_ERR_INVALID_CHAR:
1243	errmsg = "Invalid character";
1244	break;
1245
1246	case XML_IO_UNKNOWN:
1247	errmsg = "Unknown IO error"; break;
1248	case XML_IO_EACCES:
1249	errmsg = "Permission denied"; break;
1250	case XML_IO_EAGAIN:
1251	errmsg = "Resource temporarily unavailable"; break;
1252	case XML_IO_EBADF:
1253	errmsg = "Bad file descriptor"; break;
1254	case XML_IO_EBADMSG:
1255	errmsg = "Bad message"; break;
1256	case XML_IO_EBUSY:
1257	errmsg = "Resource busy"; break;
1258	case XML_IO_ECANCELED:
1259	errmsg = "Operation canceled"; break;
1260	case XML_IO_ECHILD:
1261	errmsg = "No child processes"; break;
1262	case XML_IO_EDEADLK:
1263	errmsg = "Resource deadlock avoided"; break;
1264	case XML_IO_EDOM:
1265	errmsg = "Domain error"; break;
1266	case XML_IO_EEXIST:
1267	errmsg = "File exists"; break;
1268	case XML_IO_EFAULT:
1269	errmsg = "Bad address"; break;
1270	case XML_IO_EFBIG:
1271	errmsg = "File too large"; break;
1272	case XML_IO_EINPROGRESS:
1273	errmsg = "Operation in progress"; break;
1274	case XML_IO_EINTR:
1275	errmsg = "Interrupted function call"; break;
1276	case XML_IO_EINVAL:
1277	errmsg = "Invalid argument"; break;
1278	case XML_IO_EIO:
1279	errmsg = "Input/output error"; break;
1280	case XML_IO_EISDIR:
1281	errmsg = "Is a directory"; break;
1282	case XML_IO_EMFILE:
1283	errmsg = "Too many open files"; break;
1284	case XML_IO_EMLINK:
1285	errmsg = "Too many links"; break;
1286	case XML_IO_EMSGSIZE:
1287	errmsg = "Inappropriate message buffer length"; break;
1288	case XML_IO_ENAMETOOLONG:
1289	errmsg = "Filename too long"; break;
1290	case XML_IO_ENFILE:
1291	errmsg = "Too many open files in system"; break;
1292	case XML_IO_ENODEV:
1293	errmsg = "No such device"; break;
1294	case XML_IO_ENOENT:
1295	errmsg = "No such file or directory"; break;
1296	case XML_IO_ENOEXEC:
1297	errmsg = "Exec format error"; break;
1298	case XML_IO_ENOLCK:
1299	errmsg = "No locks available"; break;
1300	case XML_IO_ENOMEM:
1301	errmsg = "Not enough space"; break;
1302	case XML_IO_ENOSPC:
1303	errmsg = "No space left on device"; break;
1304	case XML_IO_ENOSYS:
1305	errmsg = "Function not implemented"; break;
1306	case XML_IO_ENOTDIR:
1307	errmsg = "Not a directory"; break;
1308	case XML_IO_ENOTEMPTY:
1309	errmsg = "Directory not empty"; break;
1310	case XML_IO_ENOTSUP:
1311	errmsg = "Not supported"; break;
1312	case XML_IO_ENOTTY:
1313	errmsg = "Inappropriate I/O control operation"; break;
1314	case XML_IO_ENXIO:
1315	errmsg = "No such device or address"; break;
1316	case XML_IO_EPERM:
1317	errmsg = "Operation not permitted"; break;
1318	case XML_IO_EPIPE:
1319	errmsg = "Broken pipe"; break;
1320	case XML_IO_ERANGE:
1321	errmsg = "Result too large"; break;
1322	case XML_IO_EROFS:
1323	errmsg = "Read-only file system"; break;
1324	case XML_IO_ESPIPE:
1325	errmsg = "Invalid seek"; break;
1326	case XML_IO_ESRCH:
1327	errmsg = "No such process"; break;
1328	case XML_IO_ETIMEDOUT:
1329	errmsg = "Operation timed out"; break;
1330	case XML_IO_EXDEV:
1331	errmsg = "Improper link"; break;
1332	case XML_IO_NETWORK_ATTEMPT:
1333	errmsg = "Attempt to load network entity"; break;
1334	case XML_IO_ENCODER:
1335	errmsg = "encoder error"; break;
1336	case XML_IO_FLUSH:
1337	errmsg = "flush error"; break;
1338	case XML_IO_WRITE:
1339	errmsg = "write error"; break;
1340	case XML_IO_NO_INPUT:
1341	errmsg = "no input"; break;
1342	case XML_IO_BUFFER_FULL:
1343	errmsg = "buffer full"; break;
1344	case XML_IO_LOAD_ERROR:
1345	errmsg = "loading error"; break;
1346	case XML_IO_ENOTSOCK:
1347	errmsg = "not a socket"; break;
1348	case XML_IO_EISCONN:
1349	errmsg = "already connected"; break;
1350	case XML_IO_ECONNREFUSED:
1351	errmsg = "connection refused"; break;
1352	case XML_IO_ENETUNREACH:
1353	errmsg = "unreachable network"; break;
1354	case XML_IO_EADDRINUSE:
1355	errmsg = "address in use"; break;
1356	case XML_IO_EALREADY:
1357	errmsg = "already in use"; break;
1358	case XML_IO_EAFNOSUPPORT:
1359	errmsg = "unknown address family"; break;
1360	case XML_IO_UNSUPPORTED_PROTOCOL:
1361	errmsg = "unsupported protocol"; break;
1362
1363	default:
1364	errmsg = "Unregistered error message";
1365	}
1366
1367	return(errmsg);
1368	}

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source: vbox/trunk/src/libs/libxml2-2.13.2/error.c@ 105770

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