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 <libxml/parser.h>
15 #include <libxml/xmlerror.h>
16 #include <libxml/xmlmemory.h>
17 #include <libxml/globals.h>
18
19 void XMLCDECL xmlGenericErrorDefaultFunc (void *ctx ATTRIBUTE_UNUSED,
20 const char *msg,
21 ...);
22
23 #define XML_GET_VAR_STR(msg, str) { \
24 int size, prev_size = -1; \
25 int chars; \
26 char *larger; \
27 va_list ap; \
28 \
29 str = (char *) xmlMalloc(150); \
30 if (str != NULL) { \
31 \
32 size = 150; \
33 \
34 while (size < 64000) { \
35 va_start(ap, msg); \
36 chars = vsnprintf(str, size, msg, ap); \
37 va_end(ap); \
38 if ((chars > -1) && (chars < size)) { \
39 if (prev_size == chars) { \
40 break; \
41 } else { \
42 prev_size = chars; \
43 } \
44 } \
45 if (chars > -1) \
46 size += chars + 1; \
47 else \
48 size += 100; \
49 if ((larger = (char *) xmlRealloc(str, size)) == NULL) {\
50 break; \
51 } \
52 str = larger; \
53 }} \
54 }
55
56 /************************************************************************
57 * *
58 * Handling of out of context errors *
59 * *
60 ************************************************************************/
61
62 /**
63 * xmlGenericErrorDefaultFunc:
64 * @ctx: an error context
65 * @msg: the message to display/transmit
66 * @...: extra parameters for the message display
67 *
68 * Default handler for out of context error messages.
69 */
70 void XMLCDECL
xmlGenericErrorDefaultFunc(void * ctx ATTRIBUTE_UNUSED,const char * msg,...)71 xmlGenericErrorDefaultFunc(void *ctx ATTRIBUTE_UNUSED, const char *msg, ...) {
72 va_list args;
73
74 if (xmlGenericErrorContext == NULL)
75 xmlGenericErrorContext = (void *) stderr;
76
77 va_start(args, msg);
78 vfprintf((FILE *)xmlGenericErrorContext, msg, args);
79 va_end(args);
80 }
81
82 /**
83 * initGenericErrorDefaultFunc:
84 * @handler: the handler
85 *
86 * Set or reset (if NULL) the default handler for generic errors
87 * to the builtin error function.
88 */
89 void
initGenericErrorDefaultFunc(xmlGenericErrorFunc * handler)90 initGenericErrorDefaultFunc(xmlGenericErrorFunc * handler)
91 {
92 if (handler == NULL)
93 xmlGenericError = xmlGenericErrorDefaultFunc;
94 else
95 xmlGenericError = (*handler);
96 }
97
98 /**
99 * xmlSetGenericErrorFunc:
100 * @ctx: the new error handling context
101 * @handler: the new handler function
102 *
103 * Function to reset the handler and the error context for out of
104 * context error messages.
105 * This simply means that @handler will be called for subsequent
106 * error messages while not parsing nor validating. And @ctx will
107 * be passed as first argument to @handler
108 * One can simply force messages to be emitted to another FILE * than
109 * stderr by setting @ctx to this file handle and @handler to NULL.
110 * For multi-threaded applications, this must be set separately for each thread.
111 */
112 void
xmlSetGenericErrorFunc(void * ctx,xmlGenericErrorFunc handler)113 xmlSetGenericErrorFunc(void *ctx, xmlGenericErrorFunc handler) {
114 xmlGenericErrorContext = ctx;
115 if (handler != NULL)
116 xmlGenericError = handler;
117 else
118 xmlGenericError = xmlGenericErrorDefaultFunc;
119 }
120
121 /**
122 * xmlSetStructuredErrorFunc:
123 * @ctx: the new error handling context
124 * @handler: the new handler function
125 *
126 * Function to reset the handler and the error context for out of
127 * context structured error messages.
128 * This simply means that @handler will be called for subsequent
129 * error messages while not parsing nor validating. And @ctx will
130 * be passed as first argument to @handler
131 * For multi-threaded applications, this must be set separately for each thread.
132 */
133 void
xmlSetStructuredErrorFunc(void * ctx,xmlStructuredErrorFunc handler)134 xmlSetStructuredErrorFunc(void *ctx, xmlStructuredErrorFunc handler) {
135 xmlStructuredErrorContext = ctx;
136 xmlStructuredError = handler;
137 }
138
139 /************************************************************************
140 * *
141 * Handling of parsing errors *
142 * *
143 ************************************************************************/
144
145 /**
146 * xmlParserPrintFileInfo:
147 * @input: an xmlParserInputPtr input
148 *
149 * Displays the associated file and line informations for the current input
150 */
151
152 void
xmlParserPrintFileInfo(xmlParserInputPtr input)153 xmlParserPrintFileInfo(xmlParserInputPtr input) {
154 if (input != NULL) {
155 if (input->filename)
156 xmlGenericError(xmlGenericErrorContext,
157 "%s:%d: ", input->filename,
158 input->line);
159 else
160 xmlGenericError(xmlGenericErrorContext,
161 "Entity: line %d: ", input->line);
162 }
163 }
164
165 /**
166 * xmlParserPrintFileContext:
167 * @input: an xmlParserInputPtr input
168 *
169 * Displays current context within the input content for error tracking
170 */
171
172 static void
xmlParserPrintFileContextInternal(xmlParserInputPtr input,xmlGenericErrorFunc channel,void * data)173 xmlParserPrintFileContextInternal(xmlParserInputPtr input ,
174 xmlGenericErrorFunc channel, void *data ) {
175 const xmlChar *cur, *base;
176 unsigned int n, col; /* GCC warns if signed, because compared with sizeof() */
177 xmlChar content[81]; /* space for 80 chars + line terminator */
178 xmlChar *ctnt;
179
180 if (input == NULL) return;
181 cur = input->cur;
182 base = input->base;
183 /* skip backwards over any end-of-lines */
184 while ((cur > base) && ((*(cur) == '\n') || (*(cur) == '\r'))) {
185 cur--;
186 }
187 n = 0;
188 /* search backwards for beginning-of-line (to max buff size) */
189 while ((n++ < (sizeof(content)-1)) && (cur > base) &&
190 (*(cur) != '\n') && (*(cur) != '\r'))
191 cur--;
192 if ((*(cur) == '\n') || (*(cur) == '\r')) cur++;
193 /* calculate the error position in terms of the current position */
194 col = input->cur - cur;
195 /* search forward for end-of-line (to max buff size) */
196 n = 0;
197 ctnt = content;
198 /* copy selected text to our buffer */
199 while ((*cur != 0) && (*(cur) != '\n') &&
200 (*(cur) != '\r') && (n < sizeof(content)-1)) {
201 *ctnt++ = *cur++;
202 n++;
203 }
204 *ctnt = 0;
205 /* print out the selected text */
206 channel(data ,"%s\n", content);
207 /* create blank line with problem pointer */
208 n = 0;
209 ctnt = content;
210 /* (leave buffer space for pointer + line terminator) */
211 while ((n<col) && (n++ < sizeof(content)-2) && (*ctnt != 0)) {
212 if (*(ctnt) != '\t')
213 *(ctnt) = ' ';
214 ctnt++;
215 }
216 *ctnt++ = '^';
217 *ctnt = 0;
218 channel(data ,"%s\n", content);
219 }
220
221 /**
222 * xmlParserPrintFileContext:
223 * @input: an xmlParserInputPtr input
224 *
225 * Displays current context within the input content for error tracking
226 */
227 void
xmlParserPrintFileContext(xmlParserInputPtr input)228 xmlParserPrintFileContext(xmlParserInputPtr input) {
229 xmlParserPrintFileContextInternal(input, xmlGenericError,
230 xmlGenericErrorContext);
231 }
232
233 /**
234 * xmlReportError:
235 * @err: the error
236 * @ctx: the parser context or NULL
237 * @str: the formatted error message
238 *
239 * Report an erro with its context, replace the 4 old error/warning
240 * routines.
241 */
242 static void
xmlReportError(xmlErrorPtr err,xmlParserCtxtPtr ctxt,const char * str,xmlGenericErrorFunc channel,void * data)243 xmlReportError(xmlErrorPtr err, xmlParserCtxtPtr ctxt, const char *str,
244 xmlGenericErrorFunc channel, void *data)
245 {
246 char *file = NULL;
247 int line = 0;
248 int code = -1;
249 int domain;
250 const xmlChar *name = NULL;
251 xmlNodePtr node;
252 xmlErrorLevel level;
253 xmlParserInputPtr input = NULL;
254 xmlParserInputPtr cur = NULL;
255
256 if (err == NULL)
257 return;
258
259 if (channel == NULL) {
260 channel = xmlGenericError;
261 data = xmlGenericErrorContext;
262 }
263 file = err->file;
264 line = err->line;
265 code = err->code;
266 domain = err->domain;
267 level = err->level;
268 node = err->node;
269
270 if (code == XML_ERR_OK)
271 return;
272
273 if ((node != NULL) && (node->type == XML_ELEMENT_NODE))
274 name = node->name;
275
276 /*
277 * Maintain the compatibility with the legacy error handling
278 */
279 if (ctxt != NULL) {
280 input = ctxt->input;
281 if ((input != NULL) && (input->filename == NULL) &&
282 (ctxt->inputNr > 1)) {
283 cur = input;
284 input = ctxt->inputTab[ctxt->inputNr - 2];
285 }
286 if (input != NULL) {
287 if (input->filename)
288 channel(data, "%s:%d: ", input->filename, input->line);
289 else if ((line != 0) && (domain == XML_FROM_PARSER))
290 channel(data, "Entity: line %d: ", input->line);
291 }
292 } else {
293 if (file != NULL)
294 channel(data, "%s:%d: ", file, line);
295 else if ((line != 0) && (domain == XML_FROM_PARSER))
296 channel(data, "Entity: line %d: ", line);
297 }
298 if (name != NULL) {
299 channel(data, "element %s: ", name);
300 }
301 switch (domain) {
302 case XML_FROM_PARSER:
303 channel(data, "parser ");
304 break;
305 case XML_FROM_NAMESPACE:
306 channel(data, "namespace ");
307 break;
308 case XML_FROM_DTD:
309 case XML_FROM_VALID:
310 channel(data, "validity ");
311 break;
312 case XML_FROM_HTML:
313 channel(data, "HTML parser ");
314 break;
315 case XML_FROM_MEMORY:
316 channel(data, "memory ");
317 break;
318 case XML_FROM_OUTPUT:
319 channel(data, "output ");
320 break;
321 case XML_FROM_IO:
322 channel(data, "I/O ");
323 break;
324 case XML_FROM_XINCLUDE:
325 channel(data, "XInclude ");
326 break;
327 case XML_FROM_XPATH:
328 channel(data, "XPath ");
329 break;
330 case XML_FROM_XPOINTER:
331 channel(data, "parser ");
332 break;
333 case XML_FROM_REGEXP:
334 channel(data, "regexp ");
335 break;
336 case XML_FROM_MODULE:
337 channel(data, "module ");
338 break;
339 case XML_FROM_SCHEMASV:
340 channel(data, "Schemas validity ");
341 break;
342 case XML_FROM_SCHEMASP:
343 channel(data, "Schemas parser ");
344 break;
345 case XML_FROM_RELAXNGP:
346 channel(data, "Relax-NG parser ");
347 break;
348 case XML_FROM_RELAXNGV:
349 channel(data, "Relax-NG validity ");
350 break;
351 case XML_FROM_CATALOG:
352 channel(data, "Catalog ");
353 break;
354 case XML_FROM_C14N:
355 channel(data, "C14N ");
356 break;
357 case XML_FROM_XSLT:
358 channel(data, "XSLT ");
359 break;
360 case XML_FROM_I18N:
361 channel(data, "encoding ");
362 break;
363 default:
364 break;
365 }
366 switch (level) {
367 case XML_ERR_NONE:
368 channel(data, ": ");
369 break;
370 case XML_ERR_WARNING:
371 channel(data, "warning : ");
372 break;
373 case XML_ERR_ERROR:
374 channel(data, "error : ");
375 break;
376 case XML_ERR_FATAL:
377 channel(data, "error : ");
378 break;
379 }
380 if (str != NULL) {
381 int len;
382 len = xmlStrlen((const xmlChar *)str);
383 if ((len > 0) && (str[len - 1] != '\n'))
384 channel(data, "%s\n", str);
385 else
386 channel(data, "%s", str);
387 } else {
388 channel(data, "%s\n", "out of memory error");
389 }
390
391 if (ctxt != NULL) {
392 xmlParserPrintFileContextInternal(input, channel, data);
393 if (cur != NULL) {
394 if (cur->filename)
395 channel(data, "%s:%d: \n", cur->filename, cur->line);
396 else if ((line != 0) && (domain == XML_FROM_PARSER))
397 channel(data, "Entity: line %d: \n", cur->line);
398 xmlParserPrintFileContextInternal(cur, channel, data);
399 }
400 }
401 if ((domain == XML_FROM_XPATH) && (err->str1 != NULL) &&
402 (err->int1 < 100) &&
403 (err->int1 < xmlStrlen((const xmlChar *)err->str1))) {
404 xmlChar buf[150];
405 int i;
406
407 channel(data, "%s\n", err->str1);
408 for (i=0;i < err->int1;i++)
409 buf[i] = ' ';
410 buf[i++] = '^';
411 buf[i] = 0;
412 channel(data, "%s\n", buf);
413 }
414 }
415
416 /**
417 * __xmlRaiseError:
418 * @schannel: the structured callback channel
419 * @channel: the old callback channel
420 * @data: the callback data
421 * @ctx: the parser context or NULL
422 * @ctx: the parser context or NULL
423 * @domain: the domain for the error
424 * @code: the code for the error
425 * @level: the xmlErrorLevel for the error
426 * @file: the file source of the error (or NULL)
427 * @line: the line of the error or 0 if N/A
428 * @str1: extra string info
429 * @str2: extra string info
430 * @str3: extra string info
431 * @int1: extra int info
432 * @col: column number of the error or 0 if N/A
433 * @msg: the message to display/transmit
434 * @...: extra parameters for the message display
435 *
436 * Update the appropriate global or contextual error structure,
437 * then forward the error message down the parser or generic
438 * error callback handler
439 */
440 void XMLCDECL
__xmlRaiseError(xmlStructuredErrorFunc schannel,xmlGenericErrorFunc channel,void * data,void * ctx,void * nod,int domain,int code,xmlErrorLevel level,const char * file,int line,const char * str1,const char * str2,const char * str3,int int1,int col,const char * msg,...)441 __xmlRaiseError(xmlStructuredErrorFunc schannel,
442 xmlGenericErrorFunc channel, void *data, void *ctx,
443 void *nod, int domain, int code, xmlErrorLevel level,
444 const char *file, int line, const char *str1,
445 const char *str2, const char *str3, int int1, int col,
446 const char *msg, ...)
447 {
448 xmlParserCtxtPtr ctxt = NULL;
449 xmlNodePtr node = (xmlNodePtr) nod;
450 char *str = NULL;
451 xmlParserInputPtr input = NULL;
452 xmlErrorPtr to = &xmlLastError;
453 xmlNodePtr baseptr = NULL;
454
455 if (code == XML_ERR_OK)
456 return;
457 if ((xmlGetWarningsDefaultValue == 0) && (level == XML_ERR_WARNING))
458 return;
459 if ((domain == XML_FROM_PARSER) || (domain == XML_FROM_HTML) ||
460 (domain == XML_FROM_DTD) || (domain == XML_FROM_NAMESPACE) ||
461 (domain == XML_FROM_IO) || (domain == XML_FROM_VALID)) {
462 ctxt = (xmlParserCtxtPtr) ctx;
463 if ((schannel == NULL) && (ctxt != NULL) && (ctxt->sax != NULL) &&
464 (ctxt->sax->initialized == XML_SAX2_MAGIC) &&
465 (ctxt->sax->serror != NULL)) {
466 schannel = ctxt->sax->serror;
467 data = ctxt->userData;
468 }
469 }
470 /*
471 * Check if structured error handler set
472 */
473 if (schannel == NULL) {
474 schannel = xmlStructuredError;
475 /*
476 * if user has defined handler, change data ptr to user's choice
477 */
478 if (schannel != NULL)
479 data = xmlStructuredErrorContext;
480 }
481 /*
482 * Formatting the message
483 */
484 if (msg == NULL) {
485 str = (char *) xmlStrdup(BAD_CAST "No error message provided");
486 } else {
487 XML_GET_VAR_STR(msg, str);
488 }
489
490 /*
491 * specific processing if a parser context is provided
492 */
493 if (ctxt != NULL) {
494 if (file == NULL) {
495 input = ctxt->input;
496 if ((input != NULL) && (input->filename == NULL) &&
497 (ctxt->inputNr > 1)) {
498 input = ctxt->inputTab[ctxt->inputNr - 2];
499 }
500 if (input != NULL) {
501 file = input->filename;
502 line = input->line;
503 col = input->col;
504 }
505 }
506 to = &ctxt->lastError;
507 } else if ((node != NULL) && (file == NULL)) {
508 int i;
509
510 if ((node->doc != NULL) && (node->doc->URL != NULL)) {
511 baseptr = node;
512 /* file = (const char *) node->doc->URL; */
513 }
514 for (i = 0;
515 ((i < 10) && (node != NULL) && (node->type != XML_ELEMENT_NODE));
516 i++)
517 node = node->parent;
518 if ((baseptr == NULL) && (node != NULL) &&
519 (node->doc != NULL) && (node->doc->URL != NULL))
520 baseptr = node;
521
522 if ((node != NULL) && (node->type == XML_ELEMENT_NODE))
523 line = node->line;
524 }
525
526 /*
527 * Save the information about the error
528 */
529 xmlResetError(to);
530 to->domain = domain;
531 to->code = code;
532 to->message = str;
533 to->level = level;
534 if (file != NULL)
535 to->file = (char *) xmlStrdup((const xmlChar *) file);
536 else if (baseptr != NULL) {
537 #ifdef LIBXML_XINCLUDE_ENABLED
538 /*
539 * We check if the error is within an XInclude section and,
540 * if so, attempt to print out the href of the XInclude instead
541 * of the usual "base" (doc->URL) for the node (bug 152623).
542 */
543 xmlNodePtr prev = baseptr;
544 int inclcount = 0;
545 while (prev != NULL) {
546 if (prev->prev == NULL)
547 prev = prev->parent;
548 else {
549 prev = prev->prev;
550 if (prev->type == XML_XINCLUDE_START) {
551 if (--inclcount < 0)
552 break;
553 } else if (prev->type == XML_XINCLUDE_END)
554 inclcount++;
555 }
556 }
557 if (prev != NULL) {
558 if (prev->type == XML_XINCLUDE_START) {
559 prev->type = XML_ELEMENT_NODE;
560 to->file = (char *) xmlGetProp(prev, BAD_CAST "href");
561 prev->type = XML_XINCLUDE_START;
562 } else {
563 to->file = (char *) xmlGetProp(prev, BAD_CAST "href");
564 }
565 } else
566 #endif
567 to->file = (char *) xmlStrdup(baseptr->doc->URL);
568 if ((to->file == NULL) && (node != NULL) && (node->doc != NULL)) {
569 to->file = (char *) xmlStrdup(node->doc->URL);
570 }
571 }
572 to->line = line;
573 if (str1 != NULL)
574 to->str1 = (char *) xmlStrdup((const xmlChar *) str1);
575 if (str2 != NULL)
576 to->str2 = (char *) xmlStrdup((const xmlChar *) str2);
577 if (str3 != NULL)
578 to->str3 = (char *) xmlStrdup((const xmlChar *) str3);
579 to->int1 = int1;
580 to->int2 = col;
581 to->node = node;
582 to->ctxt = ctx;
583
584 if (to != &xmlLastError)
585 xmlCopyError(to,&xmlLastError);
586
587 if (schannel != NULL) {
588 schannel(data, to);
589 return;
590 }
591
592 /*
593 * Find the callback channel if channel param is NULL
594 */
595 if ((ctxt != NULL) && (channel == NULL) &&
596 (xmlStructuredError == NULL) && (ctxt->sax != NULL)) {
597 if (level == XML_ERR_WARNING)
598 channel = ctxt->sax->warning;
599 else
600 channel = ctxt->sax->error;
601 data = ctxt->userData;
602 } else if (channel == NULL) {
603 channel = xmlGenericError;
604 if (!data)
605 data = xmlGenericErrorContext;
606 }
607 if (channel == NULL)
608 return;
609
610 if ((channel == xmlParserError) ||
611 (channel == xmlParserWarning) ||
612 (channel == xmlParserValidityError) ||
613 (channel == xmlParserValidityWarning))
614 xmlReportError(to, ctxt, str, NULL, NULL);
615 else if ((channel == (xmlGenericErrorFunc) fprintf) ||
616 (channel == xmlGenericErrorDefaultFunc))
617 xmlReportError(to, ctxt, str, channel, data);
618 else
619 channel(data, "%s", str);
620 }
621
622 /**
623 * __xmlSimpleError:
624 * @domain: where the error comes from
625 * @code: the error code
626 * @node: the context node
627 * @extra: extra informations
628 *
629 * Handle an out of memory condition
630 */
631 void
__xmlSimpleError(int domain,int code,xmlNodePtr node,const char * msg,const char * extra)632 __xmlSimpleError(int domain, int code, xmlNodePtr node,
633 const char *msg, const char *extra)
634 {
635
636 if (code == XML_ERR_NO_MEMORY) {
637 if (extra)
638 __xmlRaiseError(NULL, NULL, NULL, NULL, node, domain,
639 XML_ERR_NO_MEMORY, XML_ERR_FATAL, NULL, 0, extra,
640 NULL, NULL, 0, 0,
641 "Memory allocation failed : %s\n", extra);
642 else
643 __xmlRaiseError(NULL, NULL, NULL, NULL, node, domain,
644 XML_ERR_NO_MEMORY, XML_ERR_FATAL, NULL, 0, NULL,
645 NULL, NULL, 0, 0, "Memory allocation failed\n");
646 } else {
647 __xmlRaiseError(NULL, NULL, NULL, NULL, node, domain,
648 code, XML_ERR_ERROR, NULL, 0, extra,
649 NULL, NULL, 0, 0, msg, extra);
650 }
651 }
652 /**
653 * xmlParserError:
654 * @ctx: an XML parser context
655 * @msg: the message to display/transmit
656 * @...: extra parameters for the message display
657 *
658 * Display and format an error messages, gives file, line, position and
659 * extra parameters.
660 */
661 void XMLCDECL
xmlParserError(void * ctx,const char * msg,...)662 xmlParserError(void *ctx, const char *msg, ...)
663 {
664 xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
665 xmlParserInputPtr input = NULL;
666 xmlParserInputPtr cur = NULL;
667 char * str;
668
669 if (ctxt != NULL) {
670 input = ctxt->input;
671 if ((input != NULL) && (input->filename == NULL) &&
672 (ctxt->inputNr > 1)) {
673 cur = input;
674 input = ctxt->inputTab[ctxt->inputNr - 2];
675 }
676 xmlParserPrintFileInfo(input);
677 }
678
679 xmlGenericError(xmlGenericErrorContext, "error: ");
680 XML_GET_VAR_STR(msg, str);
681 xmlGenericError(xmlGenericErrorContext, "%s", str);
682 if (str != NULL)
683 xmlFree(str);
684
685 if (ctxt != NULL) {
686 xmlParserPrintFileContext(input);
687 if (cur != NULL) {
688 xmlParserPrintFileInfo(cur);
689 xmlGenericError(xmlGenericErrorContext, "\n");
690 xmlParserPrintFileContext(cur);
691 }
692 }
693 }
694
695 /**
696 * xmlParserWarning:
697 * @ctx: an XML parser context
698 * @msg: the message to display/transmit
699 * @...: extra parameters for the message display
700 *
701 * Display and format a warning messages, gives file, line, position and
702 * extra parameters.
703 */
704 void XMLCDECL
xmlParserWarning(void * ctx,const char * msg,...)705 xmlParserWarning(void *ctx, const char *msg, ...)
706 {
707 xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
708 xmlParserInputPtr input = NULL;
709 xmlParserInputPtr cur = NULL;
710 char * str;
711
712 if (ctxt != NULL) {
713 input = ctxt->input;
714 if ((input != NULL) && (input->filename == NULL) &&
715 (ctxt->inputNr > 1)) {
716 cur = input;
717 input = ctxt->inputTab[ctxt->inputNr - 2];
718 }
719 xmlParserPrintFileInfo(input);
720 }
721
722 xmlGenericError(xmlGenericErrorContext, "warning: ");
723 XML_GET_VAR_STR(msg, str);
724 xmlGenericError(xmlGenericErrorContext, "%s", str);
725 if (str != NULL)
726 xmlFree(str);
727
728 if (ctxt != NULL) {
729 xmlParserPrintFileContext(input);
730 if (cur != NULL) {
731 xmlParserPrintFileInfo(cur);
732 xmlGenericError(xmlGenericErrorContext, "\n");
733 xmlParserPrintFileContext(cur);
734 }
735 }
736 }
737
738 /************************************************************************
739 * *
740 * Handling of validation errors *
741 * *
742 ************************************************************************/
743
744 /**
745 * xmlParserValidityError:
746 * @ctx: an XML parser context
747 * @msg: the message to display/transmit
748 * @...: extra parameters for the message display
749 *
750 * Display and format an validity error messages, gives file,
751 * line, position and extra parameters.
752 */
753 void XMLCDECL
xmlParserValidityError(void * ctx,const char * msg,...)754 xmlParserValidityError(void *ctx, const char *msg, ...)
755 {
756 xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
757 xmlParserInputPtr input = NULL;
758 char * str;
759 int len = xmlStrlen((const xmlChar *) msg);
760 static int had_info = 0;
761
762 if ((len > 1) && (msg[len - 2] != ':')) {
763 if (ctxt != NULL) {
764 input = ctxt->input;
765 if ((input->filename == NULL) && (ctxt->inputNr > 1))
766 input = ctxt->inputTab[ctxt->inputNr - 2];
767
768 if (had_info == 0) {
769 xmlParserPrintFileInfo(input);
770 }
771 }
772 xmlGenericError(xmlGenericErrorContext, "validity error: ");
773 had_info = 0;
774 } else {
775 had_info = 1;
776 }
777
778 XML_GET_VAR_STR(msg, str);
779 xmlGenericError(xmlGenericErrorContext, "%s", str);
780 if (str != NULL)
781 xmlFree(str);
782
783 if ((ctxt != NULL) && (input != NULL)) {
784 xmlParserPrintFileContext(input);
785 }
786 }
787
788 /**
789 * xmlParserValidityWarning:
790 * @ctx: an XML parser context
791 * @msg: the message to display/transmit
792 * @...: extra parameters for the message display
793 *
794 * Display and format a validity warning messages, gives file, line,
795 * position and extra parameters.
796 */
797 void XMLCDECL
xmlParserValidityWarning(void * ctx,const char * msg,...)798 xmlParserValidityWarning(void *ctx, const char *msg, ...)
799 {
800 xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
801 xmlParserInputPtr input = NULL;
802 char * str;
803 int len = xmlStrlen((const xmlChar *) msg);
804
805 if ((ctxt != NULL) && (len != 0) && (msg[len - 1] != ':')) {
806 input = ctxt->input;
807 if ((input->filename == NULL) && (ctxt->inputNr > 1))
808 input = ctxt->inputTab[ctxt->inputNr - 2];
809
810 xmlParserPrintFileInfo(input);
811 }
812
813 xmlGenericError(xmlGenericErrorContext, "validity warning: ");
814 XML_GET_VAR_STR(msg, str);
815 xmlGenericError(xmlGenericErrorContext, "%s", str);
816 if (str != NULL)
817 xmlFree(str);
818
819 if (ctxt != NULL) {
820 xmlParserPrintFileContext(input);
821 }
822 }
823
824
825 /************************************************************************
826 * *
827 * Extended Error Handling *
828 * *
829 ************************************************************************/
830
831 /**
832 * xmlGetLastError:
833 *
834 * Get the last global error registered. This is per thread if compiled
835 * with thread support.
836 *
837 * Returns NULL if no error occured or a pointer to the error
838 */
839 xmlErrorPtr
xmlGetLastError(void)840 xmlGetLastError(void)
841 {
842 if (xmlLastError.code == XML_ERR_OK)
843 return (NULL);
844 return (&xmlLastError);
845 }
846
847 /**
848 * xmlResetError:
849 * @err: pointer to the error.
850 *
851 * Cleanup the error.
852 */
853 void
xmlResetError(xmlErrorPtr err)854 xmlResetError(xmlErrorPtr err)
855 {
856 if (err == NULL)
857 return;
858 if (err->code == XML_ERR_OK)
859 return;
860 if (err->message != NULL)
861 xmlFree(err->message);
862 if (err->file != NULL)
863 xmlFree(err->file);
864 if (err->str1 != NULL)
865 xmlFree(err->str1);
866 if (err->str2 != NULL)
867 xmlFree(err->str2);
868 if (err->str3 != NULL)
869 xmlFree(err->str3);
870 memset(err, 0, sizeof(xmlError));
871 err->code = XML_ERR_OK;
872 }
873
874 /**
875 * xmlResetLastError:
876 *
877 * Cleanup the last global error registered. For parsing error
878 * this does not change the well-formedness result.
879 */
880 void
xmlResetLastError(void)881 xmlResetLastError(void)
882 {
883 if (xmlLastError.code == XML_ERR_OK)
884 return;
885 xmlResetError(&xmlLastError);
886 }
887
888 /**
889 * xmlCtxtGetLastError:
890 * @ctx: an XML parser context
891 *
892 * Get the last parsing error registered.
893 *
894 * Returns NULL if no error occured or a pointer to the error
895 */
896 xmlErrorPtr
xmlCtxtGetLastError(void * ctx)897 xmlCtxtGetLastError(void *ctx)
898 {
899 xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
900
901 if (ctxt == NULL)
902 return (NULL);
903 if (ctxt->lastError.code == XML_ERR_OK)
904 return (NULL);
905 return (&ctxt->lastError);
906 }
907
908 /**
909 * xmlCtxtResetLastError:
910 * @ctx: an XML parser context
911 *
912 * Cleanup the last global error registered. For parsing error
913 * this does not change the well-formedness result.
914 */
915 void
xmlCtxtResetLastError(void * ctx)916 xmlCtxtResetLastError(void *ctx)
917 {
918 xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
919
920 if (ctxt == NULL)
921 return;
922 ctxt->errNo = XML_ERR_OK;
923 if (ctxt->lastError.code == XML_ERR_OK)
924 return;
925 xmlResetError(&ctxt->lastError);
926 }
927
928 /**
929 * xmlCopyError:
930 * @from: a source error
931 * @to: a target error
932 *
933 * Save the original error to the new place.
934 *
935 * Returns 0 in case of success and -1 in case of error.
936 */
937 int
xmlCopyError(xmlErrorPtr from,xmlErrorPtr to)938 xmlCopyError(xmlErrorPtr from, xmlErrorPtr to) {
939 char *message, *file, *str1, *str2, *str3;
940
941 if ((from == NULL) || (to == NULL))
942 return(-1);
943
944 message = (char *) xmlStrdup((xmlChar *) from->message);
945 file = (char *) xmlStrdup ((xmlChar *) from->file);
946 str1 = (char *) xmlStrdup ((xmlChar *) from->str1);
947 str2 = (char *) xmlStrdup ((xmlChar *) from->str2);
948 str3 = (char *) xmlStrdup ((xmlChar *) from->str3);
949
950 if (to->message != NULL)
951 xmlFree(to->message);
952 if (to->file != NULL)
953 xmlFree(to->file);
954 if (to->str1 != NULL)
955 xmlFree(to->str1);
956 if (to->str2 != NULL)
957 xmlFree(to->str2);
958 if (to->str3 != NULL)
959 xmlFree(to->str3);
960 to->domain = from->domain;
961 to->code = from->code;
962 to->level = from->level;
963 to->line = from->line;
964 to->node = from->node;
965 to->int1 = from->int1;
966 to->int2 = from->int2;
967 to->node = from->node;
968 to->ctxt = from->ctxt;
969 to->message = message;
970 to->file = file;
971 to->str1 = str1;
972 to->str2 = str2;
973 to->str3 = str3;
974
975 return 0;
976 }
977
978 #define bottom_error
979 #include "elfgcchack.h"
980