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libxml2/testlimits.c
Nick Wellnhofer 886bf4e63b Stop calling xmlMemoryDump 
This was used to check for memory leaks but could potentially create a
.memdump file. These days, there are better ways to check for memory
leaks.
2023-04-30 15:48:41 +02:00

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/*
* testlimits.c: C program to run libxml2 regression tests checking various
* limits in document size. Will consume a lot of RAM and CPU cycles
*
* To compile on Unixes:
* cc -o testlimits `xml2-config --cflags` testlimits.c `xml2-config --libs` -lpthread
*
* See Copyright for the status of this software.
*
* daniel@veillard.com
*/
#include "libxml.h"
#include <stdio.h>
#include <string.h>
#include <sys/stat.h>
#include <time.h>
#include <libxml/parser.h>
#include <libxml/parserInternals.h>
#include <libxml/tree.h>
#include <libxml/uri.h>
#ifdef LIBXML_READER_ENABLED
#include <libxml/xmlreader.h>
#endif
static int verbose = 0;
static int tests_quiet = 0;
/************************************************************************
* *
* time handling *
* *
************************************************************************/
/* maximum time for one parsing before declaring a timeout */
#define MAX_TIME 2 /* seconds */
static clock_t t0;
int timeout = 0;
static void reset_timout(void) {
timeout = 0;
t0 = clock();
}
static int check_time(void) {
clock_t tnow = clock();
if (((tnow - t0) / CLOCKS_PER_SEC) > MAX_TIME) {
timeout = 1;
return(0);
}
return(1);
}
/************************************************************************
* *
* Huge document generator *
* *
************************************************************************/
#include <libxml/xmlIO.h>
/*
* Huge documents are built using fixed start and end chunks
* and filling between the two an unconventional amount of char data
*/
typedef struct hugeTest hugeTest;
typedef hugeTest *hugeTestPtr;
struct hugeTest {
const char *description;
const char *name;
const char *start;
const char *end;
};
static struct hugeTest hugeTests[] = {
{ "Huge text node", "huge:textNode", "<foo>", "</foo>" },
{ "Huge attribute node", "huge:attrNode", "<foo bar='", "'/>" },
{ "Huge comment node", "huge:commentNode", "<foo><!--", "--></foo>" },
{ "Huge PI node", "huge:piNode", "<foo><?bar ", "?></foo>" },
};
static const char *current;
static int rlen;
static unsigned int currentTest = 0;
static int instate = 0;
/**
* hugeMatch:
* @URI: an URI to test
*
* Check for an huge: query
*
* Returns 1 if yes and 0 if another Input module should be used
*/
static int
hugeMatch(const char * URI) {
if ((URI != NULL) && (!strncmp(URI, "huge:", 5)))
return(1);
return(0);
}
/**
* hugeOpen:
* @URI: an URI to test
*
* Return a pointer to the huge: query handler, in this example simply
* the current pointer...
*
* Returns an Input context or NULL in case or error
*/
static void *
hugeOpen(const char * URI) {
if ((URI == NULL) || (strncmp(URI, "huge:", 5)))
return(NULL);
for (currentTest = 0;currentTest < sizeof(hugeTests)/sizeof(hugeTests[0]);
currentTest++)
if (!strcmp(hugeTests[currentTest].name, URI))
goto found;
return(NULL);
found:
rlen = strlen(hugeTests[currentTest].start);
current = hugeTests[currentTest].start;
instate = 0;
return((void *) current);
}
/**
* hugeClose:
* @context: the read context
*
* Close the huge: query handler
*
* Returns 0 or -1 in case of error
*/
static int
hugeClose(void * context) {
if (context == NULL) return(-1);
fprintf(stderr, "\n");
return(0);
}
#define CHUNK 4096
char filling[CHUNK + 1];
static void fillFilling(void) {
int i;
for (i = 0;i < CHUNK;i++) {
filling[i] = 'a';
}
filling[CHUNK] = 0;
}
size_t maxlen = 64 * 1024 * 1024;
size_t curlen = 0;
size_t dotlen;
/**
* hugeRead:
* @context: the read context
* @buffer: where to store data
* @len: number of bytes to read
*
* Implement an huge: query read.
*
* Returns the number of bytes read or -1 in case of error
*/
static int
hugeRead(void *context, char *buffer, int len)
{
if ((context == NULL) || (buffer == NULL) || (len < 0))
return (-1);
if (instate == 0) {
if (len >= rlen) {
len = rlen;
rlen = 0;
memcpy(buffer, current, len);
instate = 1;
curlen = 0;
dotlen = maxlen / 10;
} else {
memcpy(buffer, current, len);
rlen -= len;
current += len;
}
} else if (instate == 2) {
if (len >= rlen) {
len = rlen;
rlen = 0;
memcpy(buffer, current, len);
instate = 3;
curlen = 0;
} else {
memcpy(buffer, current, len);
rlen -= len;
current += len;
}
} else if (instate == 1) {
if (len > CHUNK) len = CHUNK;
memcpy(buffer, &filling[0], len);
curlen += len;
if (curlen >= maxlen) {
rlen = strlen(hugeTests[currentTest].end);
current = hugeTests[currentTest].end;
instate = 2;
} else {
if (curlen > dotlen) {
fprintf(stderr, ".");
dotlen += maxlen / 10;
}
}
} else
len = 0;
return (len);
}
/************************************************************************
* *
* Crazy document generator *
* *
************************************************************************/
unsigned int crazy_indx = 0;
const char *crazy = "<?xml version='1.0' encoding='UTF-8'?>\
<?tst ?>\
<!-- tst -->\
<!DOCTYPE foo [\
<?tst ?>\
<!-- tst -->\
<!ELEMENT foo (#PCDATA)>\
<!ELEMENT p (#PCDATA|emph)* >\
]>\
<?tst ?>\
<!-- tst -->\
<foo bar='foo'>\
<?tst ?>\
<!-- tst -->\
foo\
<![CDATA[ ]]>\
</foo>\
<?tst ?>\
<!-- tst -->";
/**
* crazyMatch:
* @URI: an URI to test
*
* Check for a crazy: query
*
* Returns 1 if yes and 0 if another Input module should be used
*/
static int
crazyMatch(const char * URI) {
if ((URI != NULL) && (!strncmp(URI, "crazy:", 6)))
return(1);
return(0);
}
/**
* crazyOpen:
* @URI: an URI to test
*
* Return a pointer to the crazy: query handler, in this example simply
* the current pointer...
*
* Returns an Input context or NULL in case or error
*/
static void *
crazyOpen(const char * URI) {
if ((URI == NULL) || (strncmp(URI, "crazy:", 6)))
return(NULL);
if (crazy_indx > strlen(crazy))
return(NULL);
reset_timout();
rlen = crazy_indx;
current = &crazy[0];
instate = 0;
return((void *) current);
}
/**
* crazyClose:
* @context: the read context
*
* Close the crazy: query handler
*
* Returns 0 or -1 in case of error
*/
static int
crazyClose(void * context) {
if (context == NULL) return(-1);
return(0);
}
/**
* crazyRead:
* @context: the read context
* @buffer: where to store data
* @len: number of bytes to read
*
* Implement an crazy: query read.
*
* Returns the number of bytes read or -1 in case of error
*/
static int
crazyRead(void *context, char *buffer, int len)
{
if ((context == NULL) || (buffer == NULL) || (len < 0))
return (-1);
if ((check_time() <= 0) && (instate == 1)) {
fprintf(stderr, "\ntimeout in crazy(%d)\n", crazy_indx);
rlen = strlen(crazy) - crazy_indx;
current = &crazy[crazy_indx];
instate = 2;
}
if (instate == 0) {
if (len >= rlen) {
len = rlen;
rlen = 0;
memcpy(buffer, current, len);
instate = 1;
curlen = 0;
} else {
memcpy(buffer, current, len);
rlen -= len;
current += len;
}
} else if (instate == 2) {
if (len >= rlen) {
len = rlen;
rlen = 0;
memcpy(buffer, current, len);
instate = 3;
curlen = 0;
} else {
memcpy(buffer, current, len);
rlen -= len;
current += len;
}
} else if (instate == 1) {
if (len > CHUNK) len = CHUNK;
memcpy(buffer, &filling[0], len);
curlen += len;
if (curlen >= maxlen) {
rlen = strlen(crazy) - crazy_indx;
current = &crazy[crazy_indx];
instate = 2;
}
} else
len = 0;
return (len);
}
/************************************************************************
* *
* Libxml2 specific routines *
* *
************************************************************************/
static int nb_tests = 0;
static int nb_errors = 0;
static int nb_leaks = 0;
static int extraMemoryFromResolver = 0;
/*
* We need to trap calls to the resolver to not account memory for the catalog
* which is shared to the current running test. We also don't want to have
* network downloads modifying tests.
*/
static xmlParserInputPtr
testExternalEntityLoader(const char *URL, const char *ID,
xmlParserCtxtPtr ctxt) {
xmlParserInputPtr ret;
int memused = xmlMemUsed();
ret = xmlNoNetExternalEntityLoader(URL, ID, ctxt);
extraMemoryFromResolver += xmlMemUsed() - memused;
return(ret);
}
/*
* Trapping the error messages at the generic level to grab the equivalent of
* stderr messages on CLI tools.
*/
static char testErrors[32769];
static int testErrorsSize = 0;
static void
channel(void *ctx ATTRIBUTE_UNUSED, const char *msg, ...) {
va_list args;
int res;
if (testErrorsSize >= 32768)
return;
va_start(args, msg);
res = vsnprintf(&testErrors[testErrorsSize],
32768 - testErrorsSize,
msg, args);
va_end(args);
if (testErrorsSize + res >= 32768) {
/* buffer is full */
testErrorsSize = 32768;
testErrors[testErrorsSize] = 0;
} else {
testErrorsSize += res;
}
testErrors[testErrorsSize] = 0;
}
/**
* xmlParserPrintFileContext:
* @input: an xmlParserInputPtr input
*
* Displays current context within the input content for error tracking
*/
static void
xmlParserPrintFileContextInternal(xmlParserInputPtr input ,
xmlGenericErrorFunc chanl, 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 */
chanl(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;
chanl(data ,"%s\n", content);
}
static void
testStructuredErrorHandler(void *ctx ATTRIBUTE_UNUSED, xmlErrorPtr err) {
char *file = NULL;
int line = 0;
int code = -1;
int domain;
void *data = NULL;
const char *str;
const xmlChar *name = NULL;
xmlNodePtr node;
xmlErrorLevel level;
xmlParserInputPtr input = NULL;
xmlParserInputPtr cur = NULL;
xmlParserCtxtPtr ctxt = NULL;
if (err == NULL)
return;
file = err->file;
line = err->line;
code = err->code;
domain = err->domain;
level = err->level;
node = err->node;
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 = err->ctxt;
}
str = err->message;
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))
channel(data, "Entity: line %d: ", line);
}
if (name != NULL) {
channel(data, "element %s: ", name);
}
if (code == XML_ERR_OK)
return;
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;
default:
break;
}
if (code == XML_ERR_OK)
return;
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 (code == XML_ERR_OK)
return;
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 (code == XML_ERR_OK)
return;
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);
}
}
static void
initializeLibxml2(void) {
xmlGetWarningsDefaultValue = 0;
xmlPedanticParserDefault(0);
xmlMemSetup(xmlMemFree, xmlMemMalloc, xmlMemRealloc, xmlMemoryStrdup);
xmlInitParser();
xmlSetExternalEntityLoader(testExternalEntityLoader);
xmlSetStructuredErrorFunc(NULL, testStructuredErrorHandler);
/*
* register the new I/O handlers
*/
if (xmlRegisterInputCallbacks(hugeMatch, hugeOpen,
hugeRead, hugeClose) < 0) {
fprintf(stderr, "failed to register Huge handlers\n");
exit(1);
}
if (xmlRegisterInputCallbacks(crazyMatch, crazyOpen,
crazyRead, crazyClose) < 0) {
fprintf(stderr, "failed to register Crazy handlers\n");
exit(1);
}
}
/************************************************************************
* *
* SAX empty callbacks *
* *
************************************************************************/
unsigned long callbacks = 0;
/**
* isStandaloneCallback:
* @ctxt: An XML parser context
*
* Is this document tagged standalone ?
*
* Returns 1 if true
*/
static int
isStandaloneCallback(void *ctx ATTRIBUTE_UNUSED)
{
callbacks++;
return (0);
}
/**
* hasInternalSubsetCallback:
* @ctxt: An XML parser context
*
* Does this document has an internal subset
*
* Returns 1 if true
*/
static int
hasInternalSubsetCallback(void *ctx ATTRIBUTE_UNUSED)
{
callbacks++;
return (0);
}
/**
* hasExternalSubsetCallback:
* @ctxt: An XML parser context
*
* Does this document has an external subset
*
* Returns 1 if true
*/
static int
hasExternalSubsetCallback(void *ctx ATTRIBUTE_UNUSED)
{
callbacks++;
return (0);
}
/**
* internalSubsetCallback:
* @ctxt: An XML parser context
*
* Does this document has an internal subset
*/
static void
internalSubsetCallback(void *ctx ATTRIBUTE_UNUSED,
const xmlChar * name ATTRIBUTE_UNUSED,
const xmlChar * ExternalID ATTRIBUTE_UNUSED,
const xmlChar * SystemID ATTRIBUTE_UNUSED)
{
callbacks++;
return;
}
/**
* externalSubsetCallback:
* @ctxt: An XML parser context
*
* Does this document has an external subset
*/
static void
externalSubsetCallback(void *ctx ATTRIBUTE_UNUSED,
const xmlChar * name ATTRIBUTE_UNUSED,
const xmlChar * ExternalID ATTRIBUTE_UNUSED,
const xmlChar * SystemID ATTRIBUTE_UNUSED)
{
callbacks++;
return;
}
/**
* resolveEntityCallback:
* @ctxt: An XML parser context
* @publicId: The public ID of the entity
* @systemId: The system ID of the entity
*
* Special entity resolver, better left to the parser, it has
* more context than the application layer.
* The default behaviour is to NOT resolve the entities, in that case
* the ENTITY_REF nodes are built in the structure (and the parameter
* values).
*
* Returns the xmlParserInputPtr if inlined or NULL for DOM behaviour.
*/
static xmlParserInputPtr
resolveEntityCallback(void *ctx ATTRIBUTE_UNUSED,
const xmlChar * publicId ATTRIBUTE_UNUSED,
const xmlChar * systemId ATTRIBUTE_UNUSED)
{
callbacks++;
return (NULL);
}
/**
* getEntityCallback:
* @ctxt: An XML parser context
* @name: The entity name
*
* Get an entity by name
*
* Returns the xmlParserInputPtr if inlined or NULL for DOM behaviour.
*/
static xmlEntityPtr
getEntityCallback(void *ctx ATTRIBUTE_UNUSED,
const xmlChar * name ATTRIBUTE_UNUSED)
{
callbacks++;
return (NULL);
}
/**
* getParameterEntityCallback:
* @ctxt: An XML parser context
* @name: The entity name
*
* Get a parameter entity by name
*
* Returns the xmlParserInputPtr
*/
static xmlEntityPtr
getParameterEntityCallback(void *ctx ATTRIBUTE_UNUSED,
const xmlChar * name ATTRIBUTE_UNUSED)
{
callbacks++;
return (NULL);
}
/**
* entityDeclCallback:
* @ctxt: An XML parser context
* @name: the entity name
* @type: the entity type
* @publicId: The public ID of the entity
* @systemId: The system ID of the entity
* @content: the entity value (without processing).
*
* An entity definition has been parsed
*/
static void
entityDeclCallback(void *ctx ATTRIBUTE_UNUSED,
const xmlChar * name ATTRIBUTE_UNUSED,
int type ATTRIBUTE_UNUSED,
const xmlChar * publicId ATTRIBUTE_UNUSED,
const xmlChar * systemId ATTRIBUTE_UNUSED,
xmlChar * content ATTRIBUTE_UNUSED)
{
callbacks++;
return;
}
/**
* attributeDeclCallback:
* @ctxt: An XML parser context
* @name: the attribute name
* @type: the attribute type
*
* An attribute definition has been parsed
*/
static void
attributeDeclCallback(void *ctx ATTRIBUTE_UNUSED,
const xmlChar * elem ATTRIBUTE_UNUSED,
const xmlChar * name ATTRIBUTE_UNUSED,
int type ATTRIBUTE_UNUSED, int def ATTRIBUTE_UNUSED,
const xmlChar * defaultValue ATTRIBUTE_UNUSED,
xmlEnumerationPtr tree ATTRIBUTE_UNUSED)
{
callbacks++;
return;
}
/**
* elementDeclCallback:
* @ctxt: An XML parser context
* @name: the element name
* @type: the element type
* @content: the element value (without processing).
*
* An element definition has been parsed
*/
static void
elementDeclCallback(void *ctx ATTRIBUTE_UNUSED,
const xmlChar * name ATTRIBUTE_UNUSED,
int type ATTRIBUTE_UNUSED,
xmlElementContentPtr content ATTRIBUTE_UNUSED)
{
callbacks++;
return;
}
/**
* notationDeclCallback:
* @ctxt: An XML parser context
* @name: The name of the notation
* @publicId: The public ID of the entity
* @systemId: The system ID of the entity
*
* What to do when a notation declaration has been parsed.
*/
static void
notationDeclCallback(void *ctx ATTRIBUTE_UNUSED,
const xmlChar * name ATTRIBUTE_UNUSED,
const xmlChar * publicId ATTRIBUTE_UNUSED,
const xmlChar * systemId ATTRIBUTE_UNUSED)
{
callbacks++;
return;
}
/**
* unparsedEntityDeclCallback:
* @ctxt: An XML parser context
* @name: The name of the entity
* @publicId: The public ID of the entity
* @systemId: The system ID of the entity
* @notationName: the name of the notation
*
* What to do when an unparsed entity declaration is parsed
*/
static void
unparsedEntityDeclCallback(void *ctx ATTRIBUTE_UNUSED,
const xmlChar * name ATTRIBUTE_UNUSED,
const xmlChar * publicId ATTRIBUTE_UNUSED,
const xmlChar * systemId ATTRIBUTE_UNUSED,
const xmlChar * notationName ATTRIBUTE_UNUSED)
{
callbacks++;
return;
}
/**
* setDocumentLocatorCallback:
* @ctxt: An XML parser context
* @loc: A SAX Locator
*
* Receive the document locator at startup, actually xmlDefaultSAXLocator
* Everything is available on the context, so this is useless in our case.
*/
static void
setDocumentLocatorCallback(void *ctx ATTRIBUTE_UNUSED,
xmlSAXLocatorPtr loc ATTRIBUTE_UNUSED)
{
callbacks++;
return;
}
/**
* startDocumentCallback:
* @ctxt: An XML parser context
*
* called when the document start being processed.
*/
static void
startDocumentCallback(void *ctx ATTRIBUTE_UNUSED)
{
callbacks++;
return;
}
/**
* endDocumentCallback:
* @ctxt: An XML parser context
*
* called when the document end has been detected.
*/
static void
endDocumentCallback(void *ctx ATTRIBUTE_UNUSED)
{
callbacks++;
return;
}
#if 0
/**
* startElementCallback:
* @ctxt: An XML parser context
* @name: The element name
*
* called when an opening tag has been processed.
*/
static void
startElementCallback(void *ctx ATTRIBUTE_UNUSED,
const xmlChar * name ATTRIBUTE_UNUSED,
const xmlChar ** atts ATTRIBUTE_UNUSED)
{
callbacks++;
return;
}
/**
* endElementCallback:
* @ctxt: An XML parser context
* @name: The element name
*
* called when the end of an element has been detected.
*/
static void
endElementCallback(void *ctx ATTRIBUTE_UNUSED,
const xmlChar * name ATTRIBUTE_UNUSED)
{
callbacks++;
return;
}
#endif
/**
* charactersCallback:
* @ctxt: An XML parser context
* @ch: a xmlChar string
* @len: the number of xmlChar
*
* receiving some chars from the parser.
* Question: how much at a time ???
*/
static void
charactersCallback(void *ctx ATTRIBUTE_UNUSED,
const xmlChar * ch ATTRIBUTE_UNUSED,
int len ATTRIBUTE_UNUSED)
{
callbacks++;
return;
}
/**
* referenceCallback:
* @ctxt: An XML parser context
* @name: The entity name
*
* called when an entity reference is detected.
*/
static void
referenceCallback(void *ctx ATTRIBUTE_UNUSED,
const xmlChar * name ATTRIBUTE_UNUSED)
{
callbacks++;
return;
}
/**
* ignorableWhitespaceCallback:
* @ctxt: An XML parser context
* @ch: a xmlChar string
* @start: the first char in the string
* @len: the number of xmlChar
*
* receiving some ignorable whitespaces from the parser.
* Question: how much at a time ???
*/
static void
ignorableWhitespaceCallback(void *ctx ATTRIBUTE_UNUSED,
const xmlChar * ch ATTRIBUTE_UNUSED,
int len ATTRIBUTE_UNUSED)
{
callbacks++;
return;
}
/**
* processingInstructionCallback:
* @ctxt: An XML parser context
* @target: the target name
* @data: the PI data's
* @len: the number of xmlChar
*
* A processing instruction has been parsed.
*/
static void
processingInstructionCallback(void *ctx ATTRIBUTE_UNUSED,
const xmlChar * target ATTRIBUTE_UNUSED,
const xmlChar * data ATTRIBUTE_UNUSED)
{
callbacks++;
return;
}
/**
* cdataBlockCallback:
* @ctx: the user data (XML parser context)
* @value: The pcdata content
* @len: the block length
*
* called when a pcdata block has been parsed
*/
static void
cdataBlockCallback(void *ctx ATTRIBUTE_UNUSED,
const xmlChar * value ATTRIBUTE_UNUSED,
int len ATTRIBUTE_UNUSED)
{
callbacks++;
return;
}
/**
* commentCallback:
* @ctxt: An XML parser context
* @value: the comment content
*
* A comment has been parsed.
*/
static void
commentCallback(void *ctx ATTRIBUTE_UNUSED,
const xmlChar * value ATTRIBUTE_UNUSED)
{
callbacks++;
return;
}
/**
* warningCallback:
* @ctxt: 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.
*/
static void
warningCallback(void *ctx ATTRIBUTE_UNUSED,
const char *msg ATTRIBUTE_UNUSED, ...)
{
callbacks++;
return;
}
/**
* errorCallback:
* @ctxt: An XML parser context
* @msg: the message to display/transmit
* @...: extra parameters for the message display
*
* Display and format a error messages, gives file, line, position and
* extra parameters.
*/
static void
errorCallback(void *ctx ATTRIBUTE_UNUSED, const char *msg ATTRIBUTE_UNUSED,
...)
{
callbacks++;
return;
}
/**
* fatalErrorCallback:
* @ctxt: An XML parser context
* @msg: the message to display/transmit
* @...: extra parameters for the message display
*
* Display and format a fatalError messages, gives file, line, position and
* extra parameters.
*/
static void
fatalErrorCallback(void *ctx ATTRIBUTE_UNUSED,
const char *msg ATTRIBUTE_UNUSED, ...)
{
return;
}
/*
* SAX2 specific callbacks
*/
/**
* startElementNsCallback:
* @ctxt: An XML parser context
* @name: The element name
*
* called when an opening tag has been processed.
*/
static void
startElementNsCallback(void *ctx ATTRIBUTE_UNUSED,
const xmlChar * localname ATTRIBUTE_UNUSED,
const xmlChar * prefix ATTRIBUTE_UNUSED,
const xmlChar * URI ATTRIBUTE_UNUSED,
int nb_namespaces ATTRIBUTE_UNUSED,
const xmlChar ** namespaces ATTRIBUTE_UNUSED,
int nb_attributes ATTRIBUTE_UNUSED,
int nb_defaulted ATTRIBUTE_UNUSED,
const xmlChar ** attributes ATTRIBUTE_UNUSED)
{
callbacks++;
return;
}
/**
* endElementCallback:
* @ctxt: An XML parser context
* @name: The element name
*
* called when the end of an element has been detected.
*/
static void
endElementNsCallback(void *ctx ATTRIBUTE_UNUSED,
const xmlChar * localname ATTRIBUTE_UNUSED,
const xmlChar * prefix ATTRIBUTE_UNUSED,
const xmlChar * URI ATTRIBUTE_UNUSED)
{
callbacks++;
return;
}
static xmlSAXHandler callbackSAX2HandlerStruct = {
internalSubsetCallback,
isStandaloneCallback,
hasInternalSubsetCallback,
hasExternalSubsetCallback,
resolveEntityCallback,
getEntityCallback,
entityDeclCallback,
notationDeclCallback,
attributeDeclCallback,
elementDeclCallback,
unparsedEntityDeclCallback,
setDocumentLocatorCallback,
startDocumentCallback,
endDocumentCallback,
NULL,
NULL,
referenceCallback,
charactersCallback,
ignorableWhitespaceCallback,
processingInstructionCallback,
commentCallback,
warningCallback,
errorCallback,
fatalErrorCallback,
getParameterEntityCallback,
cdataBlockCallback,
externalSubsetCallback,
XML_SAX2_MAGIC,
NULL,
startElementNsCallback,
endElementNsCallback,
NULL
};
static xmlSAXHandlerPtr callbackSAX2Handler = &callbackSAX2HandlerStruct;
/************************************************************************
* *
* The tests front-ends *
* *
************************************************************************/
/**
* readerTest:
* @filename: the file to parse
* @max_size: size of the limit to test
* @options: parsing options
* @fail: should a failure be reported
*
* Parse a memory generated file using SAX
*
* Returns 0 in case of success, an error code otherwise
*/
static int
saxTest(const char *filename, size_t limit, int options, int fail) {
int res = 0;
xmlParserCtxtPtr ctxt;
xmlDocPtr doc;
nb_tests++;
maxlen = limit;
ctxt = xmlNewSAXParserCtxt(callbackSAX2Handler, NULL);
if (ctxt == NULL) {
fprintf(stderr, "Failed to create parser context\n");
return(1);
}
doc = xmlCtxtReadFile(ctxt, filename, NULL, options);
if (doc != NULL) {
fprintf(stderr, "SAX parsing generated a document !\n");
xmlFreeDoc(doc);
res = 0;
} else if (ctxt->wellFormed == 0) {
if (fail)
res = 0;
else {
fprintf(stderr, "Failed to parse '%s' %lu\n", filename,
(unsigned long) limit);
res = 1;
}
} else {
if (fail) {
fprintf(stderr, "Failed to get failure for '%s' %lu\n",
filename, (unsigned long) limit);
res = 1;
} else
res = 0;
}
xmlFreeParserCtxt(ctxt);
return(res);
}
#ifdef LIBXML_READER_ENABLED
/**
* readerTest:
* @filename: the file to parse
* @max_size: size of the limit to test
* @options: parsing options
* @fail: should a failure be reported
*
* Parse a memory generated file using the xmlReader
*
* Returns 0 in case of success, an error code otherwise
*/
static int
readerTest(const char *filename, size_t limit, int options, int fail) {
xmlTextReaderPtr reader;
int res = 0;
int ret;
nb_tests++;
maxlen = limit;
reader = xmlReaderForFile(filename , NULL, options);
if (reader == NULL) {
fprintf(stderr, "Failed to open '%s' test\n", filename);
return(1);
}
ret = xmlTextReaderRead(reader);
while (ret == 1) {
ret = xmlTextReaderRead(reader);
}
if (ret != 0) {
if (fail)
res = 0;
else {
if (strncmp(filename, "crazy:", 6) == 0)
fprintf(stderr, "Failed to parse '%s' %u\n",
filename, crazy_indx);
else
fprintf(stderr, "Failed to parse '%s' %lu\n",
filename, (unsigned long) limit);
res = 1;
}
} else {
if (fail) {
if (strncmp(filename, "crazy:", 6) == 0)
fprintf(stderr, "Failed to get failure for '%s' %u\n",
filename, crazy_indx);
else
fprintf(stderr, "Failed to get failure for '%s' %lu\n",
filename, (unsigned long) limit);
res = 1;
} else
res = 0;
}
if (timeout)
res = 1;
xmlFreeTextReader(reader);
return(res);
}
#endif
/************************************************************************
* *
* Tests descriptions *
* *
************************************************************************/
typedef int (*functest) (const char *filename, size_t limit, int options,
int fail);
typedef struct limitDesc limitDesc;
typedef limitDesc *limitDescPtr;
struct limitDesc {
const char *name; /* the huge generator name */
size_t limit; /* the limit to test */
int options; /* extra parser options */
int fail; /* whether the test should fail */
};
static limitDesc limitDescriptions[] = {
/* max length of a text node in content */
{"huge:textNode", XML_MAX_TEXT_LENGTH - CHUNK, 0, 0},
{"huge:textNode", XML_MAX_TEXT_LENGTH + CHUNK, 0, 1},
{"huge:textNode", XML_MAX_TEXT_LENGTH + CHUNK, XML_PARSE_HUGE, 0},
/* max length of a text node in content */
{"huge:attrNode", XML_MAX_TEXT_LENGTH - CHUNK, 0, 0},
{"huge:attrNode", XML_MAX_TEXT_LENGTH + CHUNK, 0, 1},
{"huge:attrNode", XML_MAX_TEXT_LENGTH + CHUNK, XML_PARSE_HUGE, 0},
/* max length of a comment node */
{"huge:commentNode", XML_MAX_TEXT_LENGTH - CHUNK, 0, 0},
{"huge:commentNode", XML_MAX_TEXT_LENGTH + CHUNK, 0, 1},
{"huge:commentNode", XML_MAX_TEXT_LENGTH + CHUNK, XML_PARSE_HUGE, 0},
/* max length of a PI node */
{"huge:piNode", XML_MAX_TEXT_LENGTH - CHUNK, 0, 0},
{"huge:piNode", XML_MAX_TEXT_LENGTH + CHUNK, 0, 1},
{"huge:piNode", XML_MAX_TEXT_LENGTH + CHUNK, XML_PARSE_HUGE, 0},
};
typedef struct testDesc testDesc;
typedef testDesc *testDescPtr;
struct testDesc {
const char *desc; /* description of the test */
functest func; /* function implementing the test */
};
static
testDesc testDescriptions[] = {
{ "Parsing of huge files with the sax parser", saxTest},
/* { "Parsing of huge files with the tree parser", treeTest}, */
#ifdef LIBXML_READER_ENABLED
{ "Parsing of huge files with the reader", readerTest},
#endif
{NULL, NULL}
};
typedef struct testException testException;
typedef testException *testExceptionPtr;
struct testException {
unsigned int test; /* the parser test number */
unsigned int limit; /* the limit test number */
int fail; /* new fail value or -1*/
size_t size; /* new limit value or 0 */
};
static
testException testExceptions[] = {
/* the SAX parser doesn't hit a limit of XML_MAX_TEXT_LENGTH text nodes */
{ 0, 1, 0, 0},
};
static int
launchTests(testDescPtr tst, unsigned int test) {
int res = 0, err = 0;
unsigned int i, j;
size_t limit;
int fail;
if (tst == NULL) return(-1);
for (i = 0;i < sizeof(limitDescriptions)/sizeof(limitDescriptions[0]);i++) {
limit = limitDescriptions[i].limit;
fail = limitDescriptions[i].fail;
/*
* Handle exceptions if any
*/
for (j = 0;j < sizeof(testExceptions)/sizeof(testExceptions[0]);j++) {
if ((testExceptions[j].test == test) &&
(testExceptions[j].limit == i)) {
if (testExceptions[j].fail != -1)
fail = testExceptions[j].fail;
if (testExceptions[j].size != 0)
limit = testExceptions[j].size;
break;
}
}
res = tst->func(limitDescriptions[i].name, limit,
limitDescriptions[i].options, fail);
if (res != 0) {
nb_errors++;
err++;
}
}
return(err);
}
static int
runtest(unsigned int i) {
int ret = 0, res;
int old_errors, old_tests, old_leaks;
old_errors = nb_errors;
old_tests = nb_tests;
old_leaks = nb_leaks;
if ((tests_quiet == 0) && (testDescriptions[i].desc != NULL))
printf("## %s\n", testDescriptions[i].desc);
res = launchTests(&testDescriptions[i], i);
if (res != 0)
ret++;
if (verbose) {
if ((nb_errors == old_errors) && (nb_leaks == old_leaks))
printf("Ran %d tests, no errors\n", nb_tests - old_tests);
else
printf("Ran %d tests, %d errors, %d leaks\n",
nb_tests - old_tests,
nb_errors - old_errors,
nb_leaks - old_leaks);
}
return(ret);
}
static int
launchCrazySAX(unsigned int test, int fail) {
int res = 0, err = 0;
crazy_indx = test;
res = saxTest("crazy::test", XML_MAX_LOOKUP_LIMIT - CHUNK, 0, fail);
if (res != 0) {
nb_errors++;
err++;
}
if (tests_quiet == 0)
fprintf(stderr, "%c", crazy[test]);
return(err);
}
#ifdef LIBXML_READER_ENABLED
static int
launchCrazy(unsigned int test, int fail) {
int res = 0, err = 0;
crazy_indx = test;
res = readerTest("crazy::test", XML_MAX_LOOKUP_LIMIT - CHUNK, 0, fail);
if (res != 0) {
nb_errors++;
err++;
}
if (tests_quiet == 0)
fprintf(stderr, "%c", crazy[test]);
return(err);
}
#endif
static int get_crazy_fail(int test) {
/*
* adding 1000000 of character 'a' leads to parser failure mostly
* everywhere except in those special spots. Need to be updated
* each time crazy is updated
*/
int fail = 1;
if ((test == 44) || /* PI in Misc */
((test >= 50) && (test <= 55)) || /* Comment in Misc */
(test == 79) || /* PI in DTD */
((test >= 85) && (test <= 90)) || /* Comment in DTD */
(test == 154) || /* PI in Misc */
((test >= 160) && (test <= 165)) || /* Comment in Misc */
((test >= 178) && (test <= 181)) || /* attribute value */
(test == 183) || /* Text */
(test == 189) || /* PI in Content */
(test == 191) || /* Text */
((test >= 195) && (test <= 200)) || /* Comment in Content */
((test >= 203) && (test <= 206)) || /* Text */
(test == 215) || (test == 216) || /* in CDATA */
(test == 219) || /* Text */
(test == 231) || /* PI in Misc */
((test >= 237) && (test <= 242))) /* Comment in Misc */
fail = 0;
return(fail);
}
static int
runcrazy(void) {
int ret = 0, res = 0;
int old_errors, old_tests, old_leaks;
unsigned int i;
old_errors = nb_errors;
old_tests = nb_tests;
old_leaks = nb_leaks;
#ifdef LIBXML_READER_ENABLED
if (tests_quiet == 0) {
printf("## Crazy tests on reader\n");
}
for (i = 0;i < strlen(crazy);i++) {
res += launchCrazy(i, get_crazy_fail(i));
if (res != 0)
ret++;
}
#endif
if (tests_quiet == 0) {
printf("\n## Crazy tests on SAX\n");
}
for (i = 0;i < strlen(crazy);i++) {
res += launchCrazySAX(i, get_crazy_fail(i));
if (res != 0)
ret++;
}
if (tests_quiet == 0)
fprintf(stderr, "\n");
if (verbose) {
if ((nb_errors == old_errors) && (nb_leaks == old_leaks))
printf("Ran %d tests, no errors\n", nb_tests - old_tests);
else
printf("Ran %d tests, %d errors, %d leaks\n",
nb_tests - old_tests,
nb_errors - old_errors,
nb_leaks - old_leaks);
}
return(ret);
}
int
main(int argc ATTRIBUTE_UNUSED, char **argv ATTRIBUTE_UNUSED) {
int i, a, ret = 0;
int subset = 0;
fillFilling();
initializeLibxml2();
for (a = 1; a < argc;a++) {
if (!strcmp(argv[a], "-v"))
verbose = 1;
else if (!strcmp(argv[a], "-quiet"))
tests_quiet = 1;
else if (!strcmp(argv[a], "-crazy"))
subset = 1;
}
if (subset == 0) {
for (i = 0; testDescriptions[i].func != NULL; i++) {
ret += runtest(i);
}
}
ret += runcrazy();
if ((nb_errors == 0) && (nb_leaks == 0)) {
ret = 0;
printf("Total %d tests, no errors\n",
nb_tests);
} else {
ret = 1;
printf("Total %d tests, %d errors, %d leaks\n",
nb_tests, nb_errors, nb_leaks);
}
xmlCleanupParser();
return(ret);
}
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