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-rw-r--r--external/libxml2_android/jni/libxml2/buf.c1345
1 files changed, 0 insertions, 1345 deletions
diff --git a/external/libxml2_android/jni/libxml2/buf.c b/external/libxml2_android/jni/libxml2/buf.c
deleted file mode 100644
index 07922ff6..00000000
--- a/external/libxml2_android/jni/libxml2/buf.c
+++ /dev/null
@@ -1,1345 +0,0 @@
-/*
- * 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 <string.h> /* for memset() only ! */
-#include <limits.h>
-#ifdef HAVE_CTYPE_H
-#include <ctype.h>
-#endif
-#ifdef HAVE_STDLIB_H
-#include <stdlib.h>
-#endif
-
-#include <libxml/tree.h>
-#include <libxml/globals.h>
-#include <libxml/tree.h>
-#include <libxml/parserInternals.h> /* for XML_MAX_TEXT_LENGTH */
-#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
- *
- * Handle a buffer overflow error
- * To be improved...
- */
-static void
-xmlBufOverflowError(xmlBufPtr buf, const char *extra)
-{
- __xmlSimpleError(XML_FROM_BUFFER, XML_BUF_OVERFLOW, NULL, NULL, extra);
- if ((buf) && (buf->error == 0))
- buf->error = XML_BUF_OVERFLOW;
-}
-
-
-/**
- * xmlBufCreate:
- *
- * routine to create an XML buffer.
- * returns the new structure.
- */
-xmlBufPtr
-xmlBufCreate(void) {
- xmlBufPtr ret;
-
- ret = (xmlBufPtr) xmlMalloc(sizeof(xmlBuf));
- if (ret == NULL) {
- xmlBufMemoryError(NULL, "creating buffer");
- return(NULL);
- }
- ret->compat_use = 0;
- ret->use = 0;
- ret->error = 0;
- ret->buffer = NULL;
- ret->size = xmlDefaultBufferSize;
- ret->compat_size = xmlDefaultBufferSize;
- ret->alloc = xmlBufferAllocScheme;
- ret->content = (xmlChar *) xmlMallocAtomic(ret->size * sizeof(xmlChar));
- if (ret->content == NULL) {
- xmlBufMemoryError(ret, "creating buffer");
- xmlFree(ret);
- return(NULL);
- }
- ret->content[0] = 0;
- ret->contentIO = NULL;
- return(ret);
-}
-
-/**
- * xmlBufCreateSize:
- * @size: initial size of buffer
- *
- * routine to create an XML buffer.
- * returns the new structure.
- */
-xmlBufPtr
-xmlBufCreateSize(size_t size) {
- xmlBufPtr ret;
-
- ret = (xmlBufPtr) xmlMalloc(sizeof(xmlBuf));
- if (ret == NULL) {
- xmlBufMemoryError(NULL, "creating buffer");
- return(NULL);
- }
- ret->compat_use = 0;
- ret->use = 0;
- ret->error = 0;
- ret->buffer = NULL;
- ret->alloc = xmlBufferAllocScheme;
- ret->size = (size ? size+2 : 0); /* +1 for ending null */
- ret->compat_size = (int) ret->size;
- if (ret->size){
- ret->content = (xmlChar *) xmlMallocAtomic(ret->size * sizeof(xmlChar));
- if (ret->content == NULL) {
- xmlBufMemoryError(ret, "creating buffer");
- xmlFree(ret);
- return(NULL);
- }
- ret->content[0] = 0;
- } else
- ret->content = NULL;
- ret->contentIO = NULL;
- return(ret);
-}
-
-/**
- * xmlBufDetach:
- * @buf: the buffer
- *
- * Remove the string contained in a buffer and give it back to the
- * caller. The buffer is reset to an empty content.
- * This doesn't work with immutable buffers as they can't be reset.
- *
- * Returns the previous string contained by the buffer.
- */
-xmlChar *
-xmlBufDetach(xmlBufPtr buf) {
- xmlChar *ret;
-
- if (buf == NULL)
- return(NULL);
- if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE)
- return(NULL);
- if (buf->buffer != NULL)
- return(NULL);
- if (buf->error)
- return(NULL);
-
- ret = buf->content;
- buf->content = NULL;
- buf->size = 0;
- buf->use = 0;
- buf->compat_use = 0;
- buf->compat_size = 0;
-
- return ret;
-}
-
-
-/**
- * xmlBufCreateStatic:
- * @mem: the memory area
- * @size: the size in byte
- *
- * routine to create an XML buffer from an immutable memory area.
- * The area won't be modified nor copied, and is expected to be
- * present until the end of the buffer lifetime.
- *
- * returns the new structure.
- */
-xmlBufPtr
-xmlBufCreateStatic(void *mem, size_t size) {
- xmlBufPtr ret;
-
- if ((mem == NULL) || (size == 0))
- return(NULL);
-
- ret = (xmlBufPtr) xmlMalloc(sizeof(xmlBuf));
- if (ret == NULL) {
- xmlBufMemoryError(NULL, "creating buffer");
- return(NULL);
- }
- if (size < INT_MAX) {
- ret->compat_use = size;
- ret->compat_size = size;
- } else {
- ret->compat_use = INT_MAX;
- ret->compat_size = INT_MAX;
- }
- ret->use = size;
- ret->size = size;
- ret->alloc = XML_BUFFER_ALLOC_IMMUTABLE;
- ret->content = (xmlChar *) mem;
- ret->error = 0;
- ret->buffer = NULL;
- return(ret);
-}
-
-/**
- * xmlBufGetAllocationScheme:
- * @buf: the buffer
- *
- * Get the buffer allocation scheme
- *
- * Returns the scheme or -1 in case of error
- */
-int
-xmlBufGetAllocationScheme(xmlBufPtr buf) {
- if (buf == NULL) {
-#ifdef DEBUG_BUFFER
- xmlGenericError(xmlGenericErrorContext,
- "xmlBufGetAllocationScheme: buf == NULL\n");
-#endif
- return(-1);
- }
- return(buf->alloc);
-}
-
-/**
- * xmlBufSetAllocationScheme:
- * @buf: the buffer to tune
- * @scheme: allocation scheme to use
- *
- * Sets the allocation scheme for this buffer
- *
- * returns 0 in case of success and -1 in case of failure
- */
-int
-xmlBufSetAllocationScheme(xmlBufPtr buf,
- xmlBufferAllocationScheme scheme) {
- if ((buf == NULL) || (buf->error != 0)) {
-#ifdef DEBUG_BUFFER
- xmlGenericError(xmlGenericErrorContext,
- "xmlBufSetAllocationScheme: buf == NULL or in error\n");
-#endif
- return(-1);
- }
- if ((buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) ||
- (buf->alloc == XML_BUFFER_ALLOC_IO))
- return(-1);
- if ((scheme == XML_BUFFER_ALLOC_DOUBLEIT) ||
- (scheme == XML_BUFFER_ALLOC_EXACT) ||
- (scheme == XML_BUFFER_ALLOC_HYBRID) ||
- (scheme == XML_BUFFER_ALLOC_IMMUTABLE) ||
- (scheme == XML_BUFFER_ALLOC_BOUNDED)) {
- buf->alloc = scheme;
- if (buf->buffer)
- buf->buffer->alloc = scheme;
- return(0);
- }
- /*
- * Switching a buffer ALLOC_IO has the side effect of initializing
- * the contentIO field with the current content
- */
- if (scheme == XML_BUFFER_ALLOC_IO) {
- buf->alloc = XML_BUFFER_ALLOC_IO;
- buf->contentIO = buf->content;
- }
- return(-1);
-}
-
-/**
- * xmlBufFree:
- * @buf: the buffer to free
- *
- * Frees an XML buffer. It frees both the content and the structure which
- * encapsulate it.
- */
-void
-xmlBufFree(xmlBufPtr buf) {
- if (buf == NULL) {
-#ifdef DEBUG_BUFFER
- xmlGenericError(xmlGenericErrorContext,
- "xmlBufFree: buf == NULL\n");
-#endif
- return;
- }
-
- if ((buf->alloc == XML_BUFFER_ALLOC_IO) &&
- (buf->contentIO != NULL)) {
- xmlFree(buf->contentIO);
- } else if ((buf->content != NULL) &&
- (buf->alloc != XML_BUFFER_ALLOC_IMMUTABLE)) {
- xmlFree(buf->content);
- }
- xmlFree(buf);
-}
-
-/**
- * xmlBufEmpty:
- * @buf: the buffer
- *
- * empty a buffer.
- */
-void
-xmlBufEmpty(xmlBufPtr buf) {
- if ((buf == NULL) || (buf->error != 0)) return;
- if (buf->content == NULL) return;
- CHECK_COMPAT(buf)
- buf->use = 0;
- if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) {
- buf->content = BAD_CAST "";
- } else if ((buf->alloc == XML_BUFFER_ALLOC_IO) &&
- (buf->contentIO != NULL)) {
- size_t start_buf = buf->content - buf->contentIO;
-
- buf->size += start_buf;
- buf->content = buf->contentIO;
- buf->content[0] = 0;
- } else {
- buf->content[0] = 0;
- }
- UPDATE_COMPAT(buf)
-}
-
-/**
- * xmlBufShrink:
- * @buf: the buffer to dump
- * @len: the number of xmlChar to remove
- *
- * Remove the beginning of an XML buffer.
- * NOTE that this routine behaviour differs from xmlBufferShrink()
- * as it will return 0 on error instead of -1 due to size_t being
- * used as the return type.
- *
- * Returns the number of byte removed or 0 in case of failure
- */
-size_t
-xmlBufShrink(xmlBufPtr buf, size_t len) {
- if ((buf == NULL) || (buf->error != 0)) return(0);
- CHECK_COMPAT(buf)
- if (len == 0) return(0);
- if (len > buf->use) return(0);
-
- buf->use -= len;
- if ((buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) ||
- ((buf->alloc == XML_BUFFER_ALLOC_IO) && (buf->contentIO != NULL))) {
- /*
- * we just move the content pointer, but also make sure
- * the perceived buffer size has shrinked accordingly
- */
- buf->content += len;
- buf->size -= len;
-
- /*
- * sometimes though it maybe be better to really shrink
- * on IO buffers
- */
- if ((buf->alloc == XML_BUFFER_ALLOC_IO) && (buf->contentIO != NULL)) {
- size_t start_buf = buf->content - buf->contentIO;
- if (start_buf >= buf->size) {
- memmove(buf->contentIO, &buf->content[0], buf->use);
- buf->content = buf->contentIO;
- buf->content[buf->use] = 0;
- buf->size += start_buf;
- }
- }
- } else {
- memmove(buf->content, &buf->content[len], buf->use);
- buf->content[buf->use] = 0;
- }
- UPDATE_COMPAT(buf)
- return(len);
-}
-
-/**
- * xmlBufGrowInternal:
- * @buf: the buffer
- * @len: the minimum free size to allocate
- *
- * Grow the available space of an XML buffer, @len is the target value
- * Error checking should be done on buf->error since using the return
- * value doesn't work that well
- *
- * Returns 0 in case of error or the length made available otherwise
- */
-static size_t
-xmlBufGrowInternal(xmlBufPtr buf, size_t len) {
- size_t size;
- xmlChar *newbuf;
-
- if ((buf == NULL) || (buf->error != 0)) return(0);
- CHECK_COMPAT(buf)
-
- if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return(0);
- if (buf->use + len < buf->size)
- return(buf->size - buf->use);
-
- /*
- * Windows has a BIG problem on realloc timing, so we try to double
- * the buffer size (if that's enough) (bug 146697)
- * Apparently BSD too, and it's probably best for linux too
- * On an embedded system this may be something to change
- */
-#if 1
- if (buf->size > (size_t) len)
- size = buf->size * 2;
- else
- size = buf->use + len + 100;
-#else
- size = buf->use + len + 100;
-#endif
-
- if (buf->alloc == XML_BUFFER_ALLOC_BOUNDED) {
- /*
- * Used to provide parsing limits
- */
- if ((buf->use + len >= XML_MAX_TEXT_LENGTH) ||
- (buf->size >= XML_MAX_TEXT_LENGTH)) {
- xmlBufMemoryError(buf, "buffer error: text too long\n");
- return(0);
- }
- if (size >= XML_MAX_TEXT_LENGTH)
- size = XML_MAX_TEXT_LENGTH;
- }
- if ((buf->alloc == XML_BUFFER_ALLOC_IO) && (buf->contentIO != NULL)) {
- size_t start_buf = buf->content - buf->contentIO;
-
- newbuf = (xmlChar *) xmlRealloc(buf->contentIO, start_buf + size);
- if (newbuf == NULL) {
- xmlBufMemoryError(buf, "growing buffer");
- return(0);
- }
- buf->contentIO = newbuf;
- buf->content = newbuf + start_buf;
- } else {
- newbuf = (xmlChar *) xmlRealloc(buf->content, size);
- if (newbuf == NULL) {
- xmlBufMemoryError(buf, "growing buffer");
- return(0);
- }
- buf->content = newbuf;
- }
- buf->size = size;
- UPDATE_COMPAT(buf)
- return(buf->size - buf->use);
-}
-
-/**
- * xmlBufGrow:
- * @buf: the buffer
- * @len: the minimum free size to allocate
- *
- * Grow the available space of an XML buffer, @len is the target value
- * This is been kept compatible with xmlBufferGrow() as much as possible
- *
- * Returns -1 in case of error or the length made available otherwise
- */
-int
-xmlBufGrow(xmlBufPtr buf, int len) {
- size_t ret;
-
- if ((buf == NULL) || (len < 0)) return(-1);
- if (len == 0)
- return(0);
- ret = xmlBufGrowInternal(buf, len);
- if (buf->error != 0)
- return(-1);
- return((int) ret);
-}
-
-/**
- * xmlBufInflate:
- * @buf: the buffer
- * @len: the minimum extra free size to allocate
- *
- * Grow the available space of an XML buffer, adding at least @len bytes
- *
- * Returns 0 if successful or -1 in case of error
- */
-int
-xmlBufInflate(xmlBufPtr buf, size_t len) {
- if (buf == NULL) return(-1);
- xmlBufGrowInternal(buf, len + buf->size);
- if (buf->error)
- return(-1);
- return(0);
-}
-
-/**
- * xmlBufDump:
- * @file: the file output
- * @buf: the buffer to dump
- *
- * Dumps an XML buffer to a FILE *.
- * Returns the number of #xmlChar written
- */
-size_t
-xmlBufDump(FILE *file, xmlBufPtr buf) {
- size_t ret;
-
- if ((buf == NULL) || (buf->error != 0)) {
-#ifdef DEBUG_BUFFER
- xmlGenericError(xmlGenericErrorContext,
- "xmlBufDump: buf == NULL or in error\n");
-#endif
- return(0);
- }
- if (buf->content == NULL) {
-#ifdef DEBUG_BUFFER
- xmlGenericError(xmlGenericErrorContext,
- "xmlBufDump: buf->content == NULL\n");
-#endif
- return(0);
- }
- CHECK_COMPAT(buf)
- if (file == NULL)
- file = stdout;
- ret = fwrite(buf->content, sizeof(xmlChar), buf->use, file);
- return(ret);
-}
-
-/**
- * xmlBufContent:
- * @buf: the buffer
- *
- * Function to extract the content of a buffer
- *
- * Returns the internal content
- */
-
-xmlChar *
-xmlBufContent(const xmlBuf *buf)
-{
- if ((!buf) || (buf->error))
- return NULL;
-
- return(buf->content);
-}
-
-/**
- * xmlBufEnd:
- * @buf: the buffer
- *
- * Function to extract the end of the content of a buffer
- *
- * Returns the end of the internal content or NULL in case of error
- */
-
-xmlChar *
-xmlBufEnd(xmlBufPtr buf)
-{
- if ((!buf) || (buf->error))
- return NULL;
- CHECK_COMPAT(buf)
-
- return(&buf->content[buf->use]);
-}
-
-/**
- * xmlBufAddLen:
- * @buf: the buffer
- * @len: the size which were added at the end
- *
- * Sometime data may be added at the end of the buffer without
- * using the xmlBuf APIs that is used to expand the used space
- * and set the zero terminating at the end of the buffer
- *
- * Returns -1 in case of error and 0 otherwise
- */
-int
-xmlBufAddLen(xmlBufPtr buf, size_t len) {
- if ((buf == NULL) || (buf->error))
- return(-1);
- CHECK_COMPAT(buf)
- if (len > (buf->size - buf->use))
- return(-1);
- buf->use += len;
- UPDATE_COMPAT(buf)
- if (buf->size > buf->use)
- buf->content[buf->use] = 0;
- else
- return(-1);
- return(0);
-}
-
-/**
- * xmlBufErase:
- * @buf: the buffer
- * @len: the size to erase at the end
- *
- * Sometime data need to be erased at the end of the buffer
- *
- * Returns -1 in case of error and 0 otherwise
- */
-int
-xmlBufErase(xmlBufPtr buf, size_t len) {
- if ((buf == NULL) || (buf->error))
- return(-1);
- CHECK_COMPAT(buf)
- if (len > buf->use)
- return(-1);
- buf->use -= len;
- buf->content[buf->use] = 0;
- UPDATE_COMPAT(buf)
- return(0);
-}
-
-/**
- * xmlBufLength:
- * @buf: the buffer
- *
- * Function to get the length of a buffer
- *
- * Returns the length of data in the internal content
- */
-
-size_t
-xmlBufLength(const xmlBufPtr buf)
-{
- if ((!buf) || (buf->error))
- return 0;
- CHECK_COMPAT(buf)
-
- return(buf->use);
-}
-
-/**
- * xmlBufUse:
- * @buf: the buffer
- *
- * Function to get the length of a buffer
- *
- * Returns the length of data in the internal content
- */
-
-size_t
-xmlBufUse(const xmlBufPtr buf)
-{
- if ((!buf) || (buf->error))
- return 0;
- CHECK_COMPAT(buf)
-
- return(buf->use);
-}
-
-/**
- * xmlBufAvail:
- * @buf: the buffer
- *
- * Function to find how much free space is allocated but not
- * used in the buffer. It does not account for the terminating zero
- * usually needed
- *
- * Returns the amount or 0 if none or an error occured
- */
-
-size_t
-xmlBufAvail(const xmlBufPtr buf)
-{
- if ((!buf) || (buf->error))
- return 0;
- CHECK_COMPAT(buf)
-
- return(buf->size - buf->use);
-}
-
-/**
- * xmlBufIsEmpty:
- * @buf: the buffer
- *
- * Tell if a buffer is empty
- *
- * Returns 0 if no, 1 if yes and -1 in case of error
- */
-int
-xmlBufIsEmpty(const xmlBufPtr buf)
-{
- if ((!buf) || (buf->error))
- return(-1);
- CHECK_COMPAT(buf)
-
- return(buf->use == 0);
-}
-
-/**
- * xmlBufResize:
- * @buf: the buffer to resize
- * @size: the desired size
- *
- * Resize a buffer to accommodate minimum size of @size.
- *
- * Returns 0 in case of problems, 1 otherwise
- */
-int
-xmlBufResize(xmlBufPtr buf, size_t size)
-{
- unsigned int newSize;
- xmlChar* rebuf = NULL;
- size_t start_buf;
-
- if ((buf == NULL) || (buf->error))
- return(0);
- CHECK_COMPAT(buf)
-
- if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return(0);
- if (buf->alloc == XML_BUFFER_ALLOC_BOUNDED) {
- /*
- * Used to provide parsing limits
- */
- if (size >= XML_MAX_TEXT_LENGTH) {
- xmlBufMemoryError(buf, "buffer error: text too long\n");
- return(0);
- }
- }
-
- /* Don't resize if we don't have to */
- if (size < buf->size)
- return 1;
-
- /* figure out new size */
- switch (buf->alloc){
- case XML_BUFFER_ALLOC_IO:
- case XML_BUFFER_ALLOC_DOUBLEIT:
- /*take care of empty case*/
- newSize = (buf->size ? buf->size*2 : size + 10);
- while (size > newSize) {
- if (newSize > UINT_MAX / 2) {
- xmlBufMemoryError(buf, "growing buffer");
- return 0;
- }
- newSize *= 2;
- }
- break;
- case XML_BUFFER_ALLOC_EXACT:
- newSize = size+10;
- break;
- case XML_BUFFER_ALLOC_HYBRID:
- if (buf->use < BASE_BUFFER_SIZE)
- newSize = size;
- else {
- newSize = buf->size * 2;
- while (size > newSize) {
- if (newSize > UINT_MAX / 2) {
- xmlBufMemoryError(buf, "growing buffer");
- return 0;
- }
- newSize *= 2;
- }
- }
- break;
-
- default:
- newSize = size+10;
- break;
- }
-
- if ((buf->alloc == XML_BUFFER_ALLOC_IO) && (buf->contentIO != NULL)) {
- start_buf = buf->content - buf->contentIO;
-
- if (start_buf > newSize) {
- /* move data back to start */
- memmove(buf->contentIO, buf->content, buf->use);
- buf->content = buf->contentIO;
- buf->content[buf->use] = 0;
- buf->size += start_buf;
- } else {
- rebuf = (xmlChar *) xmlRealloc(buf->contentIO, start_buf + newSize);
- if (rebuf == NULL) {
- xmlBufMemoryError(buf, "growing buffer");
- return 0;
- }
- buf->contentIO = rebuf;
- buf->content = rebuf + start_buf;
- }
- } else {
- if (buf->content == NULL) {
- rebuf = (xmlChar *) xmlMallocAtomic(newSize);
- } else if (buf->size - buf->use < 100) {
- rebuf = (xmlChar *) xmlRealloc(buf->content, newSize);
- } else {
- /*
- * if we are reallocating a buffer far from being full, it's
- * better to make a new allocation and copy only the used range
- * and free the old one.
- */
- rebuf = (xmlChar *) xmlMallocAtomic(newSize);
- if (rebuf != NULL) {
- memcpy(rebuf, buf->content, buf->use);
- xmlFree(buf->content);
- rebuf[buf->use] = 0;
- }
- }
- if (rebuf == NULL) {
- xmlBufMemoryError(buf, "growing buffer");
- return 0;
- }
- buf->content = rebuf;
- }
- buf->size = newSize;
- UPDATE_COMPAT(buf)
-
- return 1;
-}
-
-/**
- * xmlBufAdd:
- * @buf: the buffer to dump
- * @str: the #xmlChar string
- * @len: the number of #xmlChar to add
- *
- * Add a string range to an XML buffer. if len == -1, the length of
- * str is recomputed.
- *
- * Returns 0 successful, a positive error code number otherwise
- * and -1 in case of internal or API error.
- */
-int
-xmlBufAdd(xmlBufPtr buf, const xmlChar *str, int len) {
- unsigned int needSize;
-
- if ((str == NULL) || (buf == NULL) || (buf->error))
- return -1;
- CHECK_COMPAT(buf)
-
- if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return -1;
- if (len < -1) {
-#ifdef DEBUG_BUFFER
- xmlGenericError(xmlGenericErrorContext,
- "xmlBufAdd: len < 0\n");
-#endif
- return -1;
- }
- if (len == 0) return 0;
-
- if (len < 0)
- len = xmlStrlen(str);
-
- if (len < 0) return -1;
- if (len == 0) return 0;
-
- needSize = buf->use + len + 2;
- if (needSize > buf->size){
- if (buf->alloc == XML_BUFFER_ALLOC_BOUNDED) {
- /*
- * Used to provide parsing limits
- */
- if (needSize >= XML_MAX_TEXT_LENGTH) {
- xmlBufMemoryError(buf, "buffer error: text too long\n");
- return(-1);
- }
- }
- if (!xmlBufResize(buf, needSize)){
- xmlBufMemoryError(buf, "growing buffer");
- return XML_ERR_NO_MEMORY;
- }
- }
-
- memmove(&buf->content[buf->use], str, len*sizeof(xmlChar));
- buf->use += len;
- buf->content[buf->use] = 0;
- UPDATE_COMPAT(buf)
- return 0;
-}
-
-/**
- * xmlBufAddHead:
- * @buf: the buffer
- * @str: the #xmlChar string
- * @len: the number of #xmlChar to add
- *
- * Add a string range to the beginning of an XML buffer.
- * if len == -1, the length of @str is recomputed.
- *
- * Returns 0 successful, a positive error code number otherwise
- * and -1 in case of internal or API error.
- */
-int
-xmlBufAddHead(xmlBufPtr buf, const xmlChar *str, int len) {
- unsigned int needSize;
-
- if ((buf == NULL) || (buf->error))
- return(-1);
- CHECK_COMPAT(buf)
- if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return -1;
- if (str == NULL) {
-#ifdef DEBUG_BUFFER
- xmlGenericError(xmlGenericErrorContext,
- "xmlBufAddHead: str == NULL\n");
-#endif
- return -1;
- }
- if (len < -1) {
-#ifdef DEBUG_BUFFER
- xmlGenericError(xmlGenericErrorContext,
- "xmlBufAddHead: len < 0\n");
-#endif
- return -1;
- }
- if (len == 0) return 0;
-
- if (len < 0)
- len = xmlStrlen(str);
-
- if (len <= 0) return -1;
-
- if ((buf->alloc == XML_BUFFER_ALLOC_IO) && (buf->contentIO != NULL)) {
- size_t start_buf = buf->content - buf->contentIO;
-
- if (start_buf > (unsigned int) len) {
- /*
- * We can add it in the space previously shrinked
- */
- buf->content -= len;
- memmove(&buf->content[0], str, len);
- buf->use += len;
- buf->size += len;
- UPDATE_COMPAT(buf)
- return(0);
- }
- }
- needSize = buf->use + len + 2;
- if (needSize > buf->size){
- if (buf->alloc == XML_BUFFER_ALLOC_BOUNDED) {
- /*
- * Used to provide parsing limits
- */
- if (needSize >= XML_MAX_TEXT_LENGTH) {
- xmlBufMemoryError(buf, "buffer error: text too long\n");
- return(-1);
- }
- }
- if (!xmlBufResize(buf, needSize)){
- xmlBufMemoryError(buf, "growing buffer");
- return XML_ERR_NO_MEMORY;
- }
- }
-
- memmove(&buf->content[len], &buf->content[0], buf->use);
- memmove(&buf->content[0], str, len);
- buf->use += len;
- buf->content[buf->use] = 0;
- UPDATE_COMPAT(buf)
- return 0;
-}
-
-/**
- * xmlBufCat:
- * @buf: the buffer to add to
- * @str: the #xmlChar string
- *
- * Append a zero terminated string to an XML buffer.
- *
- * Returns 0 successful, a positive error code number otherwise
- * and -1 in case of internal or API error.
- */
-int
-xmlBufCat(xmlBufPtr buf, const xmlChar *str) {
- if ((buf == NULL) || (buf->error))
- return(-1);
- CHECK_COMPAT(buf)
- if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return -1;
- if (str == NULL) return -1;
- return xmlBufAdd(buf, str, -1);
-}
-
-/**
- * xmlBufCCat:
- * @buf: the buffer to dump
- * @str: the C char string
- *
- * Append a zero terminated C string to an XML buffer.
- *
- * Returns 0 successful, a positive error code number otherwise
- * and -1 in case of internal or API error.
- */
-int
-xmlBufCCat(xmlBufPtr buf, const char *str) {
- const char *cur;
-
- if ((buf == NULL) || (buf->error))
- return(-1);
- CHECK_COMPAT(buf)
- if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return -1;
- if (str == NULL) {
-#ifdef DEBUG_BUFFER
- xmlGenericError(xmlGenericErrorContext,
- "xmlBufCCat: str == NULL\n");
-#endif
- return -1;
- }
- for (cur = str;*cur != 0;cur++) {
- if (buf->use + 10 >= buf->size) {
- if (!xmlBufResize(buf, buf->use+10)){
- xmlBufMemoryError(buf, "growing buffer");
- return XML_ERR_NO_MEMORY;
- }
- }
- buf->content[buf->use++] = *cur;
- }
- buf->content[buf->use] = 0;
- UPDATE_COMPAT(buf)
- return 0;
-}
-
-/**
- * xmlBufWriteCHAR:
- * @buf: the XML buffer
- * @string: the string to add
- *
- * routine which manages and grows an output buffer. This one adds
- * xmlChars at the end of the buffer.
- *
- * Returns 0 if successful, a positive error code number otherwise
- * and -1 in case of internal or API error.
- */
-int
-xmlBufWriteCHAR(xmlBufPtr buf, const xmlChar *string) {
- if ((buf == NULL) || (buf->error))
- return(-1);
- CHECK_COMPAT(buf)
- if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE)
- return(-1);
- return(xmlBufCat(buf, string));
-}
-
-/**
- * xmlBufWriteChar:
- * @buf: the XML buffer output
- * @string: the string to add
- *
- * routine which manage and grows an output buffer. This one add
- * C chars at the end of the array.
- *
- * Returns 0 if successful, a positive error code number otherwise
- * and -1 in case of internal or API error.
- */
-int
-xmlBufWriteChar(xmlBufPtr buf, const char *string) {
- if ((buf == NULL) || (buf->error))
- return(-1);
- CHECK_COMPAT(buf)
- if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE)
- return(-1);
- return(xmlBufCCat(buf, string));
-}
-
-
-/**
- * xmlBufWriteQuotedString:
- * @buf: the XML buffer output
- * @string: the string to add
- *
- * routine which manage and grows an output buffer. This one writes
- * a quoted or double quoted #xmlChar string, checking first if it holds
- * quote or double-quotes internally
- *
- * Returns 0 if successful, a positive error code number otherwise
- * and -1 in case of internal or API error.
- */
-int
-xmlBufWriteQuotedString(xmlBufPtr buf, const xmlChar *string) {
- const xmlChar *cur, *base;
- if ((buf == NULL) || (buf->error))
- return(-1);
- CHECK_COMPAT(buf)
- if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE)
- return(-1);
- if (xmlStrchr(string, '\"')) {
- if (xmlStrchr(string, '\'')) {
-#ifdef DEBUG_BUFFER
- xmlGenericError(xmlGenericErrorContext,
- "xmlBufWriteQuotedString: string contains quote and double-quotes !\n");
-#endif
- xmlBufCCat(buf, "\"");
- base = cur = string;
- while(*cur != 0){
- if(*cur == '"'){
- if (base != cur)
- xmlBufAdd(buf, base, cur - base);
- xmlBufAdd(buf, BAD_CAST "&quot;", 6);
- cur++;
- base = cur;
- }
- else {
- cur++;
- }
- }
- if (base != cur)
- xmlBufAdd(buf, base, cur - base);
- xmlBufCCat(buf, "\"");
- }
- else{
- xmlBufCCat(buf, "\'");
- xmlBufCat(buf, string);
- xmlBufCCat(buf, "\'");
- }
- } else {
- xmlBufCCat(buf, "\"");
- xmlBufCat(buf, string);
- xmlBufCCat(buf, "\"");
- }
- return(0);
-}
-
-/**
- * xmlBufFromBuffer:
- * @buffer: incoming old buffer to convert to a new one
- *
- * Helper routine to switch from the old buffer structures in use
- * in various APIs. It creates a wrapper xmlBufPtr which will be
- * used for internal processing until the xmlBufBackToBuffer() is
- * issued.
- *
- * Returns a new xmlBufPtr unless the call failed and NULL is returned
- */
-xmlBufPtr
-xmlBufFromBuffer(xmlBufferPtr buffer) {
- xmlBufPtr ret;
-
- if (buffer == NULL)
- return(NULL);
-
- ret = (xmlBufPtr) xmlMalloc(sizeof(xmlBuf));
- if (ret == NULL) {
- xmlBufMemoryError(NULL, "creating buffer");
- return(NULL);
- }
- ret->use = buffer->use;
- ret->size = buffer->size;
- ret->compat_use = buffer->use;
- ret->compat_size = buffer->size;
- ret->error = 0;
- ret->buffer = buffer;
- ret->alloc = buffer->alloc;
- ret->content = buffer->content;
- ret->contentIO = buffer->contentIO;
-
- return(ret);
-}
-
-/**
- * xmlBufBackToBuffer:
- * @buf: new buffer wrapping the old one
- *
- * Function to be called once internal processing had been done to
- * update back the buffer provided by the user. This can lead to
- * a failure in case the size accumulated in the xmlBuf is larger
- * than what an xmlBuffer can support on 64 bits (INT_MAX)
- * The xmlBufPtr @buf wrapper is deallocated by this call in any case.
- *
- * Returns the old xmlBufferPtr unless the call failed and NULL is returned
- */
-xmlBufferPtr
-xmlBufBackToBuffer(xmlBufPtr buf) {
- xmlBufferPtr ret;
-
- if ((buf == NULL) || (buf->error))
- return(NULL);
- CHECK_COMPAT(buf)
- if (buf->buffer == NULL) {
- xmlBufFree(buf);
- return(NULL);
- }
-
- ret = buf->buffer;
- /*
- * What to do in case of error in the buffer ???
- */
- if (buf->use > INT_MAX) {
- /*
- * Worse case, we really allocated and used more than the
- * maximum allowed memory for an xmlBuffer on this architecture.
- * Keep the buffer but provide a truncated size value.
- */
- xmlBufOverflowError(buf, "Used size too big for xmlBuffer");
- ret->use = INT_MAX;
- ret->size = INT_MAX;
- } else if (buf->size > INT_MAX) {
- /*
- * milder case, we allocated more than the maximum allowed memory
- * for an xmlBuffer on this architecture, but used less than the
- * limit.
- * Keep the buffer but provide a truncated size value.
- */
- xmlBufOverflowError(buf, "Allocated size too big for xmlBuffer");
- ret->size = INT_MAX;
- }
- ret->use = (int) buf->use;
- ret->size = (int) buf->size;
- ret->alloc = buf->alloc;
- ret->content = buf->content;
- ret->contentIO = buf->contentIO;
- xmlFree(buf);
- return(ret);
-}
-
-/**
- * xmlBufMergeBuffer:
- * @buf: an xmlBufPtr
- * @buffer: the buffer to consume into @buf
- *
- * The content of @buffer is appended to @buf and @buffer is freed
- *
- * Returns -1 in case of error, 0 otherwise, in any case @buffer is freed
- */
-int
-xmlBufMergeBuffer(xmlBufPtr buf, xmlBufferPtr buffer) {
- int ret = 0;
-
- if ((buf == NULL) || (buf->error)) {
- xmlBufferFree(buffer);
- return(-1);
- }
- CHECK_COMPAT(buf)
- if ((buffer != NULL) && (buffer->content != NULL) &&
- (buffer->use > 0)) {
- ret = xmlBufAdd(buf, buffer->content, buffer->use);
- }
- xmlBufferFree(buffer);
- return(ret);
-}
-
-/**
- * xmlBufResetInput:
- * @buf: an xmlBufPtr
- * @input: an xmlParserInputPtr
- *
- * Update the input to use the current set of pointers from the buffer.
- *
- * Returns -1 in case of error, 0 otherwise
- */
-int
-xmlBufResetInput(xmlBufPtr buf, xmlParserInputPtr input) {
- if ((input == NULL) || (buf == NULL) || (buf->error))
- return(-1);
- CHECK_COMPAT(buf)
- input->base = input->cur = buf->content;
- input->end = &buf->content[buf->use];
- return(0);
-}
-
-/**
- * xmlBufGetInputBase:
- * @buf: an xmlBufPtr
- * @input: an xmlParserInputPtr
- *
- * Get the base of the @input relative to the beginning of the buffer
- *
- * Returns the size_t corresponding to the displacement
- */
-size_t
-xmlBufGetInputBase(xmlBufPtr buf, xmlParserInputPtr input) {
- size_t base;
-
- if ((input == NULL) || (buf == NULL) || (buf->error))
- return(-1);
- CHECK_COMPAT(buf)
- base = input->base - buf->content;
- /*
- * We could do some pointer arythmetic checks but that's probably
- * sufficient.
- */
- if (base > buf->size) {
- xmlBufOverflowError(buf, "Input reference outside of the buffer");
- base = 0;
- }
- return(base);
-}
-
-/**
- * xmlBufSetInputBaseCur:
- * @buf: an xmlBufPtr
- * @input: an xmlParserInputPtr
- * @base: the base value relative to the beginning of the buffer
- * @cur: the cur value relative to the beginning of the buffer
- *
- * Update the input to use the base and cur relative to the buffer
- * after a possible reallocation of its content
- *
- * Returns -1 in case of error, 0 otherwise
- */
-int
-xmlBufSetInputBaseCur(xmlBufPtr buf, xmlParserInputPtr input,
- size_t base, size_t cur) {
- if ((input == NULL) || (buf == NULL) || (buf->error))
- return(-1);
- CHECK_COMPAT(buf)
- input->base = &buf->content[base];
- input->cur = input->base + cur;
- input->end = &buf->content[buf->use];
- return(0);
-}
-
-#define bottom_buf
-#include "elfgcchack.h"