libxml2-2.9.1.tar.gz

XML toolkit from the GNOME project Full documentation is available on-line at http://xmlsoft.org/ This code is released under the MIT Licence see the Copyright file. To build on an Unixised setup: ./configure ; make ; make install To build on Windows: see instructions on win32/Readme.txt To assert build quality: on an Unixised setup: run make tests otherwise: There is 3 standalone tools runtest.c runsuite.c testapi.c, which should compile as part of the build or as any application would. Launch them from this directory to get results, runtest checks the proper functionning of libxml2 main APIs while testapi does a full coverage check. Report failures to the list. To report bugs, follow the instructions at: http://xmlsoft.org/bugs.html A mailing-list xml@gnome.org is available, to subscribe: http://mail.gnome.org/mailman/listinfo/xml The list archive is at: http://mail.gnome.org/archives/xml/ All technical answers asked privately will be automatically answered on the list and archived for public access unless privacy is explicitly required and justified. Daniel Veillard $Id$

/*
 * buf.c: memory buffers for libxml2
 *
 * new buffer structures and entry points to simplify the maintainance
 * of libxml2 and ensure we keep good control over memory allocations
 * and stay 64 bits clean.
 * The new entry point use the xmlBufPtr opaque structure and
 * xmlBuf...（） counterparts to the old xmlBuf...（） functions
 *
 * See Copyright for the status of this software.
 *
 * daniel@veillard.com
 */

#define IN_LIBxml
#include “libxml.h“

#include  /* for memset（） only ! */
#include 
#ifdef HAVE_CTYPE_H
#include 
#endif
#ifdef HAVE_STDLIB_H
#include 
#endif

#include l/tree.h>
#include l/globals.h>
#include l/tree.h>
#include “buf.h“

#define WITH_BUFFER_COMPAT

/**
 * xmlBuf:
 *
 * A buffer structure. The base of the structure is somehow compatible
 * with struct _xmlBuffer to limit risks on application which accessed
 * directly the input->buf->buffer structures.
 */

struct _xmlBuf {
    xmlChar *content;		/* The buffer content UTF8 */
    unsigned int compat_use;    /* for binary compatibility */
    unsigned int compat_size;   /* for binary compatibility */
    xmlBufferAllocationScheme alloc; /* The realloc method */
    xmlChar *contentIO;		/* in IO mode we may have a different base */
    size_t use;		        /* The buffer size used */
    size_t size;		/* The buffer size */
    xmlBufferPtr buffer;        /* wrapper for an old buffer */
    int error;                  /* an error code if a failure occured */
};

#ifdef WITH_BUFFER_COMPAT
/*
 * Macro for compatibility with xmlBuffer to be used after an xmlBuf
 * is updated. This makes sure the compat fields are updated too.
 */
#define UPDATE_COMPAT（buf）				    \
     if （buf->size < INT_MAX） buf->compat_size = buf->size; \
     else buf->compat_size = INT_MAX;			    \
     if （buf->use < INT_MAX） buf->compat_use = buf->use; \
     else buf->compat_use = INT_MAX;

/*
 * Macro for compatibility with xmlBuffer to be used in all the xmlBuf
 * entry points it checks that the compat fields have not been modified
 * by direct call to xmlBuffer function from code compiled before 2.9.0 .
 */
#define CHECK_COMPAT（buf）				    \
     if （buf->size != （size_t） buf->compat_size）	    \
         if （buf->compat_size < INT_MAX）		    \
	     buf->size = buf->compat_size;		    \
     if （buf->use != （size_t） buf->compat_use）		    \
         if （buf->compat_use < INT_MAX）			    \
	     buf->use = buf->compat_use;

#else /* ! WITH_BUFFER_COMPAT */
#define UPDATE_COMPAT（buf）
#define CHECK_COMPAT（buf）
#endif /* WITH_BUFFER_COMPAT */

/**
 * xmlBufMemoryError:
 * @extra:  extra informations
 *
 * Handle an out of memory condition
 * To be improved...
 */
static void
xmlBufMemoryError（xmlBufPtr buf const char *extra）
{
    __xmlSimpleError（xml_FROM_BUFFER xml_ERR_NO_MEMORY NULL NULL extra）;
    if （（buf） && （buf->error == 0））
        buf->error = xml_ERR_NO_MEMORY;
}

/**
 * xmlBufOverflowError:
 * @extra:  extra informations
 *
 * Hand