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parser: Move xmlSaturatedAdd to private header

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This commit is contained in:
Nick Wellnhofer
2025-07-22 22:38:05 +02:00
parent e3daef5c78
commit 144ed959a5
3 changed files with 20 additions and 26 deletions
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18
include/private/parser.h
View File

@@ -1,6 +1,8 @@
#ifndef XML_PARSER_H_PRIVATE__
#define XML_PARSER_H_PRIVATE__
#include <limits.h>
#include <libxml/parser.h>
#include <libxml/xmlversion.h>
@@ -153,4 +155,20 @@ xmlExpandEntitiesInAttValue(xmlParserCtxt *ctxt, const xmlChar *str,
XML_HIDDEN void
xmlParserCheckEOF(xmlParserCtxt *ctxt, xmlParserErrors code);
static XML_INLINE void
xmlSaturatedAdd(unsigned long *dst, unsigned long val) {
if (val > ULONG_MAX - *dst)
*dst = ULONG_MAX;
else
*dst += val;
}
static XML_INLINE void
xmlSaturatedAddSizeT(unsigned long *dst, size_t val) {
if (val > ULONG_MAX - *dst)
*dst = ULONG_MAX;
else
*dst += val;
}
#endif /* XML_PARSER_H_PRIVATE__ */

16
parser.c
View File

@@ -408,22 +408,6 @@ xmlNsWarn(xmlParserCtxtPtr ctxt, xmlParserErrors error,
info1, info2, info3, 0, msg, info1, info2, info3);
}
static void
xmlSaturatedAdd(unsigned long *dst, unsigned long val) {
if (val > ULONG_MAX - *dst)
*dst = ULONG_MAX;
else
*dst += val;
}
static void
xmlSaturatedAddSizeT(unsigned long *dst, size_t val) {
if (val > ULONG_MAX - *dst)
*dst = ULONG_MAX;
else
*dst += val;
}
/**
* Check for non-linear entity expansion behaviour.
*

12
parserInternals.c
View File

@@ -697,11 +697,7 @@ xmlParserShrink(xmlParserCtxt *ctxt) {
if (res > 0) {
used -= res;
if ((res > ULONG_MAX) ||
(in->consumed > ULONG_MAX - (unsigned long)res))
in->consumed = ULONG_MAX;
else
in->consumed += res;
xmlSaturatedAddSizeT(&in->consumed, res);
}
xmlBufUpdateInput(buf->buffer, in, used);
@@ -732,11 +728,7 @@ xmlParserInputShrink(xmlParserInput *in) {
ret = xmlBufShrink(in->buf->buffer, used - LINE_LEN);
if (ret > 0) {
used -= ret;
if ((ret > ULONG_MAX) ||
(in->consumed > ULONG_MAX - (unsigned long)ret))
in->consumed = ULONG_MAX;
else
in->consumed += ret;
xmlSaturatedAddSizeT(&in->consumed, ret);
}
xmlBufUpdateInput(in->buf->buffer, in, used);