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996 lines (925 loc) · 26.7 KB
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/*
* error.c: module displaying/handling XML parser errors
*
* See Copyright for the status of this software.
*
* Daniel Veillard <daniel@veillard.com>
*/
#define IN_LIBXML
#include "libxml.h"
#include <string.h>
#include <stdarg.h>
#include <libxml/parser.h>
#include <libxml/xmlerror.h>
#include <libxml/xmlmemory.h>
#include <libxml/globals.h>
void XMLCDECL xmlGenericErrorDefaultFunc (void *ctx ATTRIBUTE_UNUSED,
const char *msg,
...);
#define XML_GET_VAR_STR(msg, str) { \
int size, prev_size = -1; \
int chars; \
char *larger; \
va_list ap; \
\
str = (char *) xmlMalloc(150); \
if (str != NULL) { \
\
size = 150; \
\
while (size < 64000) { \
va_start(ap, msg); \
chars = vsnprintf(str, size, msg, ap); \
va_end(ap); \
if ((chars > -1) && (chars < size)) { \
if (prev_size == chars) { \
break; \
} else { \
prev_size = chars; \
} \
} \
if (chars > -1) \
size += chars + 1; \
else \
size += 100; \
if ((larger = (char *) xmlRealloc(str, size)) == NULL) {\
break; \
} \
str = larger; \
}} \
}
/************************************************************************
* *
* Handling of out of context errors *
* *
************************************************************************/
/**
* xmlGenericErrorDefaultFunc:
* @ctx: an error context
* @msg: the message to display/transmit
* @...: extra parameters for the message display
*
* Default handler for out of context error messages.
*/
void XMLCDECL
xmlGenericErrorDefaultFunc(void *ctx ATTRIBUTE_UNUSED, const char *msg, ...) {
va_list args;
if (xmlGenericErrorContext == NULL)
xmlGenericErrorContext = (void *) stderr;
va_start(args, msg);
vfprintf((FILE *)xmlGenericErrorContext, msg, args);
va_end(args);
}
/**
* initGenericErrorDefaultFunc:
* @handler: the handler
*
* Set or reset (if NULL) the default handler for generic errors
* to the builtin error function.
*/
void
initGenericErrorDefaultFunc(xmlGenericErrorFunc * handler)
{
if (handler == NULL)
xmlGenericError = xmlGenericErrorDefaultFunc;
else
xmlGenericError = (*handler);
}
/**
* xmlSetGenericErrorFunc:
* @ctx: the new error handling context
* @handler: the new handler function
*
* Function to reset the handler and the error context for out of
* context error messages.
* This simply means that @handler will be called for subsequent
* error messages while not parsing nor validating. And @ctx will
* be passed as first argument to @handler
* One can simply force messages to be emitted to another FILE * than
* stderr by setting @ctx to this file handle and @handler to NULL.
* For multi-threaded applications, this must be set separately for each thread.
*/
void
xmlSetGenericErrorFunc(void *ctx, xmlGenericErrorFunc handler) {
xmlGenericErrorContext = ctx;
if (handler != NULL)
xmlGenericError = handler;
else
xmlGenericError = xmlGenericErrorDefaultFunc;
}
/**
* xmlSetStructuredErrorFunc:
* @ctx: the new error handling context
* @handler: the new handler function
*
* Function to reset the handler and the error context for out of
* context structured error messages.
* This simply means that @handler will be called for subsequent
* error messages while not parsing nor validating. And @ctx will
* be passed as first argument to @handler
* For multi-threaded applications, this must be set separately for each thread.
*/
void
xmlSetStructuredErrorFunc(void *ctx, xmlStructuredErrorFunc handler) {
xmlStructuredErrorContext = ctx;
xmlStructuredError = handler;
}
/************************************************************************
* *
* Handling of parsing errors *
* *
************************************************************************/
/**
* xmlParserPrintFileInfo:
* @input: an xmlParserInputPtr input
*
* Displays the associated file and line informations for the current input
*/
void
xmlParserPrintFileInfo(xmlParserInputPtr input) {
if (input != NULL) {
if (input->filename)
xmlGenericError(xmlGenericErrorContext,
"%s:%d: ", input->filename,
input->line);
else
xmlGenericError(xmlGenericErrorContext,
"Entity: line %d: ", input->line);
}
}
/**
* xmlParserPrintFileContext:
* @input: an xmlParserInputPtr input
*
* Displays current context within the input content for error tracking
*/
static void
xmlParserPrintFileContextInternal(xmlParserInputPtr input ,
xmlGenericErrorFunc channel, void *data ) {
const xmlChar *cur, *base;
unsigned int n, col; /* GCC warns if signed, because compared with sizeof() */
xmlChar content[81]; /* space for 80 chars + line terminator */
xmlChar *ctnt;
if (input == NULL) return;
cur = input->cur;
base = input->base;
/* skip backwards over any end-of-lines */
while ((cur > base) && ((*(cur) == '\n') || (*(cur) == '\r'))) {
cur--;
}
n = 0;
/* search backwards for beginning-of-line (to max buff size) */
while ((n++ < (sizeof(content)-1)) && (cur > base) &&
(*(cur) != '\n') && (*(cur) != '\r'))
cur--;
if ((*(cur) == '\n') || (*(cur) == '\r')) cur++;
/* calculate the error position in terms of the current position */
col = input->cur - cur;
/* search forward for end-of-line (to max buff size) */
n = 0;
ctnt = content;
/* copy selected text to our buffer */
while ((*cur != 0) && (*(cur) != '\n') &&
(*(cur) != '\r') && (n < sizeof(content)-1)) {
*ctnt++ = *cur++;
n++;
}
*ctnt = 0;
/* print out the selected text */
channel(data ,"%s\n", content);
/* create blank line with problem pointer */
n = 0;
ctnt = content;
/* (leave buffer space for pointer + line terminator) */
while ((n<col) && (n++ < sizeof(content)-2) && (*ctnt != 0)) {
if (*(ctnt) != '\t')
*(ctnt) = ' ';
ctnt++;
}
*ctnt++ = '^';
*ctnt = 0;
channel(data ,"%s\n", content);
}
/**
* xmlParserPrintFileContext:
* @input: an xmlParserInputPtr input
*
* Displays current context within the input content for error tracking
*/
void
xmlParserPrintFileContext(xmlParserInputPtr input) {
xmlParserPrintFileContextInternal(input, xmlGenericError,
xmlGenericErrorContext);
}
/**
* xmlReportError:
* @err: the error
* @ctx: the parser context or NULL
* @str: the formatted error message
*
* Report an erro with its context, replace the 4 old error/warning
* routines.
*/
static void
xmlReportError(xmlErrorPtr err, xmlParserCtxtPtr ctxt, const char *str,
xmlGenericErrorFunc channel, void *data)
{
char *file = NULL;
int line = 0;
int code = -1;
int domain;
const xmlChar *name = NULL;
xmlNodePtr node;
xmlErrorLevel level;
xmlParserInputPtr input = NULL;
xmlParserInputPtr cur = NULL;
if (err == NULL)
return;
if (channel == NULL) {
channel = xmlGenericError;
data = xmlGenericErrorContext;
}
file = err->file;
line = err->line;
code = err->code;
domain = err->domain;
level = err->level;
node = err->node;
if (code == XML_ERR_OK)
return;
if ((node != NULL) && (node->type == XML_ELEMENT_NODE))
name = node->name;
/*
* Maintain the compatibility with the legacy error handling
*/
if (ctxt != NULL) {
input = ctxt->input;
if ((input != NULL) && (input->filename == NULL) &&
(ctxt->inputNr > 1)) {
cur = input;
input = ctxt->inputTab[ctxt->inputNr - 2];
}
if (input != NULL) {
if (input->filename)
channel(data, "%s:%d: ", input->filename, input->line);
else if ((line != 0) && (domain == XML_FROM_PARSER))
channel(data, "Entity: line %d: ", input->line);
}
} else {
if (file != NULL)
channel(data, "%s:%d: ", file, line);
else if ((line != 0) &&
((domain == XML_FROM_PARSER) || (domain == XML_FROM_SCHEMASV)||
(domain == XML_FROM_SCHEMASP)||(domain == XML_FROM_DTD) ||
(domain == XML_FROM_RELAXNGP)||(domain == XML_FROM_RELAXNGV)))
channel(data, "Entity: line %d: ", line);
}
if (name != NULL) {
channel(data, "element %s: ", name);
}
switch (domain) {
case XML_FROM_PARSER:
channel(data, "parser ");
break;
case XML_FROM_NAMESPACE:
channel(data, "namespace ");
break;
case XML_FROM_DTD:
case XML_FROM_VALID:
channel(data, "validity ");
break;
case XML_FROM_HTML:
channel(data, "HTML parser ");
break;
case XML_FROM_MEMORY:
channel(data, "memory ");
break;
case XML_FROM_OUTPUT:
channel(data, "output ");
break;
case XML_FROM_IO:
channel(data, "I/O ");
break;
case XML_FROM_XINCLUDE:
channel(data, "XInclude ");
break;
case XML_FROM_XPATH:
channel(data, "XPath ");
break;
case XML_FROM_XPOINTER:
channel(data, "parser ");
break;
case XML_FROM_REGEXP:
channel(data, "regexp ");
break;
case XML_FROM_MODULE:
channel(data, "module ");
break;
case XML_FROM_SCHEMASV:
channel(data, "Schemas validity ");
break;
case XML_FROM_SCHEMASP:
channel(data, "Schemas parser ");
break;
case XML_FROM_RELAXNGP:
channel(data, "Relax-NG parser ");
break;
case XML_FROM_RELAXNGV:
channel(data, "Relax-NG validity ");
break;
case XML_FROM_CATALOG:
channel(data, "Catalog ");
break;
case XML_FROM_C14N:
channel(data, "C14N ");
break;
case XML_FROM_XSLT:
channel(data, "XSLT ");
break;
case XML_FROM_I18N:
channel(data, "encoding ");
break;
case XML_FROM_SCHEMATRONV:
channel(data, "schematron ");
break;
case XML_FROM_BUFFER:
channel(data, "internal buffer ");
break;
case XML_FROM_URI:
channel(data, "URI ");
break;
default:
break;
}
switch (level) {
case XML_ERR_NONE:
channel(data, ": ");
break;
case XML_ERR_WARNING:
channel(data, "warning : ");
break;
case XML_ERR_ERROR:
channel(data, "error : ");
break;
case XML_ERR_FATAL:
channel(data, "error : ");
break;
}
if (str != NULL) {
int len;
len = xmlStrlen((const xmlChar *)str);
if ((len > 0) && (str[len - 1] != '\n'))
channel(data, "%s\n", str);
else
channel(data, "%s", str);
} else {
channel(data, "%s\n", "out of memory error");
}
if (ctxt != NULL) {
xmlParserPrintFileContextInternal(input, channel, data);
if (cur != NULL) {
if (cur->filename)
channel(data, "%s:%d: \n", cur->filename, cur->line);
else if ((line != 0) && (domain == XML_FROM_PARSER))
channel(data, "Entity: line %d: \n", cur->line);
xmlParserPrintFileContextInternal(cur, channel, data);
}
}
if ((domain == XML_FROM_XPATH) && (err->str1 != NULL) &&
(err->int1 < 100) &&
(err->int1 < xmlStrlen((const xmlChar *)err->str1))) {
xmlChar buf[150];
int i;
channel(data, "%s\n", err->str1);
for (i=0;i < err->int1;i++)
buf[i] = ' ';
buf[i++] = '^';
buf[i] = 0;
channel(data, "%s\n", buf);
}
}
/**
* __xmlRaiseError:
* @schannel: the structured callback channel
* @channel: the old callback channel
* @data: the callback data
* @ctx: the parser context or NULL
* @ctx: the parser context or NULL
* @domain: the domain for the error
* @code: the code for the error
* @level: the xmlErrorLevel for the error
* @file: the file source of the error (or NULL)
* @line: the line of the error or 0 if N/A
* @str1: extra string info
* @str2: extra string info
* @str3: extra string info
* @int1: extra int info
* @col: column number of the error or 0 if N/A
* @msg: the message to display/transmit
* @...: extra parameters for the message display
*
* Update the appropriate global or contextual error structure,
* then forward the error message down the parser or generic
* error callback handler
*/
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, ...)
{
xmlParserCtxtPtr ctxt = NULL;
xmlNodePtr node = (xmlNodePtr) nod;
char *str = NULL;
xmlParserInputPtr input = NULL;
xmlErrorPtr to = &xmlLastError;
xmlNodePtr baseptr = NULL;
if (code == XML_ERR_OK)
return;
if ((xmlGetWarningsDefaultValue == 0) && (level == XML_ERR_WARNING))
return;
if ((domain == XML_FROM_PARSER) || (domain == XML_FROM_HTML) ||
(domain == XML_FROM_DTD) || (domain == XML_FROM_NAMESPACE) ||
(domain == XML_FROM_IO) || (domain == XML_FROM_VALID)) {
ctxt = (xmlParserCtxtPtr) ctx;
if ((schannel == NULL) && (ctxt != NULL) && (ctxt->sax != NULL) &&
(ctxt->sax->initialized == XML_SAX2_MAGIC) &&
(ctxt->sax->serror != NULL)) {
schannel = ctxt->sax->serror;
data = ctxt->userData;
}
}
/*
* Check if structured error handler set
*/
if (schannel == NULL) {
schannel = xmlStructuredError;
/*
* if user has defined handler, change data ptr to user's choice
*/
if (schannel != NULL)
data = xmlStructuredErrorContext;
}
/*
* Formatting the message
*/
if (msg == NULL) {
str = (char *) xmlStrdup(BAD_CAST "No error message provided");
} else {
XML_GET_VAR_STR(msg, str);
}
/*
* specific processing if a parser context is provided
*/
if (ctxt != NULL) {
if (file == NULL) {
input = ctxt->input;
if ((input != NULL) && (input->filename == NULL) &&
(ctxt->inputNr > 1)) {
input = ctxt->inputTab[ctxt->inputNr - 2];
}
if (input != NULL) {
file = input->filename;
line = input->line;
col = input->col;
}
}
to = &ctxt->lastError;
} else if ((node != NULL) && (file == NULL)) {
int i;
if ((node->doc != NULL) && (node->doc->URL != NULL)) {
baseptr = node;
/* file = (const char *) node->doc->URL; */
}
for (i = 0;
((i < 10) && (node != NULL) && (node->type != XML_ELEMENT_NODE));
i++)
node = node->parent;
if ((baseptr == NULL) && (node != NULL) &&
(node->doc != NULL) && (node->doc->URL != NULL))
baseptr = node;
if ((node != NULL) && (node->type == XML_ELEMENT_NODE))
line = node->line;
if ((line == 0) || (line == 65535))
line = xmlGetLineNo(node);
}
/*
* Save the information about the error
*/
xmlResetError(to);
to->domain = domain;
to->code = code;
to->message = str;
to->level = level;
if (file != NULL)
to->file = (char *) xmlStrdup((const xmlChar *) file);
else if (baseptr != NULL) {
#ifdef LIBXML_XINCLUDE_ENABLED
/*
* We check if the error is within an XInclude section and,
* if so, attempt to print out the href of the XInclude instead
* of the usual "base" (doc->URL) for the node (bug 152623).
*/
xmlNodePtr prev = baseptr;
int inclcount = 0;
while (prev != NULL) {
if (prev->prev == NULL)
prev = prev->parent;
else {
prev = prev->prev;
if (prev->type == XML_XINCLUDE_START) {
if (--inclcount < 0)
break;
} else if (prev->type == XML_XINCLUDE_END)
inclcount++;
}
}
if (prev != NULL) {
if (prev->type == XML_XINCLUDE_START) {
prev->type = XML_ELEMENT_NODE;
to->file = (char *) xmlGetProp(prev, BAD_CAST "href");
prev->type = XML_XINCLUDE_START;
} else {
to->file = (char *) xmlGetProp(prev, BAD_CAST "href");
}
} else
#endif
to->file = (char *) xmlStrdup(baseptr->doc->URL);
if ((to->file == NULL) && (node != NULL) && (node->doc != NULL)) {
to->file = (char *) xmlStrdup(node->doc->URL);
}
}
to->line = line;
if (str1 != NULL)
to->str1 = (char *) xmlStrdup((const xmlChar *) str1);
if (str2 != NULL)
to->str2 = (char *) xmlStrdup((const xmlChar *) str2);
if (str3 != NULL)
to->str3 = (char *) xmlStrdup((const xmlChar *) str3);
to->int1 = int1;
to->int2 = col;
to->node = node;
to->ctxt = ctx;
if (to != &xmlLastError)
xmlCopyError(to,&xmlLastError);
if (schannel != NULL) {
schannel(data, to);
return;
}
/*
* Find the callback channel if channel param is NULL
*/
if ((ctxt != NULL) && (channel == NULL) &&
(xmlStructuredError == NULL) && (ctxt->sax != NULL)) {
if (level == XML_ERR_WARNING)
channel = ctxt->sax->warning;
else
channel = ctxt->sax->error;
data = ctxt->userData;
} else if (channel == NULL) {
channel = xmlGenericError;
if (ctxt != NULL) {
data = ctxt;
} else {
data = xmlGenericErrorContext;
}
}
if (channel == NULL)
return;
if ((channel == xmlParserError) ||
(channel == xmlParserWarning) ||
(channel == xmlParserValidityError) ||
(channel == xmlParserValidityWarning))
xmlReportError(to, ctxt, str, NULL, NULL);
else if ((channel == (xmlGenericErrorFunc) fprintf) ||
(channel == xmlGenericErrorDefaultFunc))
xmlReportError(to, ctxt, str, channel, data);
else
channel(data, "%s", str);
}
/**
* __xmlSimpleError:
* @domain: where the error comes from
* @code: the error code
* @node: the context node
* @extra: extra informations
*
* Handle an out of memory condition
*/
void
__xmlSimpleError(int domain, int code, xmlNodePtr node,
const char *msg, const char *extra)
{
if (code == XML_ERR_NO_MEMORY) {
if (extra)
__xmlRaiseError(NULL, NULL, NULL, NULL, node, domain,
XML_ERR_NO_MEMORY, XML_ERR_FATAL, NULL, 0, extra,
NULL, NULL, 0, 0,
"Memory allocation failed : %s\n", extra);
else
__xmlRaiseError(NULL, NULL, NULL, NULL, node, domain,
XML_ERR_NO_MEMORY, XML_ERR_FATAL, NULL, 0, NULL,
NULL, NULL, 0, 0, "Memory allocation failed\n");
} else {
__xmlRaiseError(NULL, NULL, NULL, NULL, node, domain,
code, XML_ERR_ERROR, NULL, 0, extra,
NULL, NULL, 0, 0, msg, extra);
}
}
/**
* xmlParserError:
* @ctx: an XML parser context
* @msg: the message to display/transmit
* @...: extra parameters for the message display
*
* Display and format an error messages, gives file, line, position and
* extra parameters.
*/
void XMLCDECL
xmlParserError(void *ctx, const char *msg, ...)
{
xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
xmlParserInputPtr input = NULL;
xmlParserInputPtr cur = NULL;
char * str;
if (ctxt != NULL) {
input = ctxt->input;
if ((input != NULL) && (input->filename == NULL) &&
(ctxt->inputNr > 1)) {
cur = input;
input = ctxt->inputTab[ctxt->inputNr - 2];
}
xmlParserPrintFileInfo(input);
}
xmlGenericError(xmlGenericErrorContext, "error: ");
XML_GET_VAR_STR(msg, str);
xmlGenericError(xmlGenericErrorContext, "%s", str);
if (str != NULL)
xmlFree(str);
if (ctxt != NULL) {
xmlParserPrintFileContext(input);
if (cur != NULL) {
xmlParserPrintFileInfo(cur);
xmlGenericError(xmlGenericErrorContext, "\n");
xmlParserPrintFileContext(cur);
}
}
}
/**
* xmlParserWarning:
* @ctx: an XML parser context
* @msg: the message to display/transmit
* @...: extra parameters for the message display
*
* Display and format a warning messages, gives file, line, position and
* extra parameters.
*/
void XMLCDECL
xmlParserWarning(void *ctx, const char *msg, ...)
{
xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
xmlParserInputPtr input = NULL;
xmlParserInputPtr cur = NULL;
char * str;
if (ctxt != NULL) {
input = ctxt->input;
if ((input != NULL) && (input->filename == NULL) &&
(ctxt->inputNr > 1)) {
cur = input;
input = ctxt->inputTab[ctxt->inputNr - 2];
}
xmlParserPrintFileInfo(input);
}
xmlGenericError(xmlGenericErrorContext, "warning: ");
XML_GET_VAR_STR(msg, str);
xmlGenericError(xmlGenericErrorContext, "%s", str);
if (str != NULL)
xmlFree(str);
if (ctxt != NULL) {
xmlParserPrintFileContext(input);
if (cur != NULL) {
xmlParserPrintFileInfo(cur);
xmlGenericError(xmlGenericErrorContext, "\n");
xmlParserPrintFileContext(cur);
}
}
}
/************************************************************************
* *
* Handling of validation errors *
* *
************************************************************************/
/**
* xmlParserValidityError:
* @ctx: an XML parser context
* @msg: the message to display/transmit
* @...: extra parameters for the message display
*
* Display and format an validity error messages, gives file,
* line, position and extra parameters.
*/
void XMLCDECL
xmlParserValidityError(void *ctx, const char *msg, ...)
{
xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
xmlParserInputPtr input = NULL;
char * str;
int len = xmlStrlen((const xmlChar *) msg);
static int had_info = 0;
if ((len > 1) && (msg[len - 2] != ':')) {
if (ctxt != NULL) {
input = ctxt->input;
if ((input->filename == NULL) && (ctxt->inputNr > 1))
input = ctxt->inputTab[ctxt->inputNr - 2];
if (had_info == 0) {
xmlParserPrintFileInfo(input);
}
}
xmlGenericError(xmlGenericErrorContext, "validity error: ");
had_info = 0;
} else {
had_info = 1;
}
XML_GET_VAR_STR(msg, str);
xmlGenericError(xmlGenericErrorContext, "%s", str);
if (str != NULL)
xmlFree(str);
if ((ctxt != NULL) && (input != NULL)) {
xmlParserPrintFileContext(input);
}
}
/**
* xmlParserValidityWarning:
* @ctx: an XML parser context
* @msg: the message to display/transmit
* @...: extra parameters for the message display
*
* Display and format a validity warning messages, gives file, line,
* position and extra parameters.
*/
void XMLCDECL
xmlParserValidityWarning(void *ctx, const char *msg, ...)
{
xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
xmlParserInputPtr input = NULL;
char * str;
int len = xmlStrlen((const xmlChar *) msg);
if ((ctxt != NULL) && (len != 0) && (msg[len - 1] != ':')) {
input = ctxt->input;
if ((input->filename == NULL) && (ctxt->inputNr > 1))
input = ctxt->inputTab[ctxt->inputNr - 2];
xmlParserPrintFileInfo(input);
}
xmlGenericError(xmlGenericErrorContext, "validity warning: ");
XML_GET_VAR_STR(msg, str);
xmlGenericError(xmlGenericErrorContext, "%s", str);
if (str != NULL)
xmlFree(str);
if (ctxt != NULL) {
xmlParserPrintFileContext(input);
}
}
/************************************************************************
* *
* Extended Error Handling *
* *
************************************************************************/
/**
* xmlGetLastError:
*
* Get the last global error registered. This is per thread if compiled
* with thread support.
*
* Returns NULL if no error occured or a pointer to the error
*/
xmlErrorPtr
xmlGetLastError(void)
{
if (xmlLastError.code == XML_ERR_OK)
return (NULL);
return (&xmlLastError);
}
/**
* xmlResetError:
* @err: pointer to the error.
*
* Cleanup the error.
*/
void
xmlResetError(xmlErrorPtr err)
{
if (err == NULL)
return;
if (err->code == XML_ERR_OK)
return;
if (err->message != NULL)
xmlFree(err->message);
if (err->file != NULL)
xmlFree(err->file);
if (err->str1 != NULL)
xmlFree(err->str1);
if (err->str2 != NULL)
xmlFree(err->str2);
if (err->str3 != NULL)
xmlFree(err->str3);
memset(err, 0, sizeof(xmlError));
err->code = XML_ERR_OK;
}
/**
* xmlResetLastError:
*
* Cleanup the last global error registered. For parsing error
* this does not change the well-formedness result.
*/
void
xmlResetLastError(void)
{
if (xmlLastError.code == XML_ERR_OK)
return;
xmlResetError(&xmlLastError);
}
/**
* xmlCtxtGetLastError:
* @ctx: an XML parser context
*
* Get the last parsing error registered.
*
* Returns NULL if no error occured or a pointer to the error
*/
xmlErrorPtr
xmlCtxtGetLastError(void *ctx)
{
xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
if (ctxt == NULL)
return (NULL);
if (ctxt->lastError.code == XML_ERR_OK)
return (NULL);
return (&ctxt->lastError);
}
/**
* xmlCtxtResetLastError:
* @ctx: an XML parser context
*
* Cleanup the last global error registered. For parsing error
* this does not change the well-formedness result.
*/
void
xmlCtxtResetLastError(void *ctx)
{
xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
if (ctxt == NULL)
return;
ctxt->errNo = XML_ERR_OK;
if (ctxt->lastError.code == XML_ERR_OK)
return;
xmlResetError(&ctxt->lastError);
}
/**
* xmlCopyError:
* @from: a source error
* @to: a target error
*
* Save the original error to the new place.
*
* Returns 0 in case of success and -1 in case of error.
*/
int
xmlCopyError(xmlErrorPtr from, xmlErrorPtr to) {
char *message, *file, *str1, *str2, *str3;
if ((from == NULL) || (to == NULL))
return(-1);
message = (char *) xmlStrdup((xmlChar *) from->message);
file = (char *) xmlStrdup ((xmlChar *) from->file);
str1 = (char *) xmlStrdup ((xmlChar *) from->str1);
str2 = (char *) xmlStrdup ((xmlChar *) from->str2);
str3 = (char *) xmlStrdup ((xmlChar *) from->str3);
if (to->message != NULL)
xmlFree(to->message);
if (to->file != NULL)
xmlFree(to->file);
if (to->str1 != NULL)
xmlFree(to->str1);
if (to->str2 != NULL)
xmlFree(to->str2);
if (to->str3 != NULL)
xmlFree(to->str3);
to->domain = from->domain;
to->code = from->code;
to->level = from->level;
to->line = from->line;
to->node = from->node;
to->int1 = from->int1;
to->int2 = from->int2;
to->node = from->node;
to->ctxt = from->ctxt;
to->message = message;
to->file = file;
to->str1 = str1;
to->str2 = str2;
to->str3 = str3;
return 0;
}
#define bottom_error
#include "elfgcchack.h"