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Diffstat (limited to '3rdparty/expat/lib/xmltok_impl.c')
-rw-r--r--3rdparty/expat/lib/xmltok_impl.c38
1 files changed, 26 insertions, 12 deletions
diff --git a/3rdparty/expat/lib/xmltok_impl.c b/3rdparty/expat/lib/xmltok_impl.c
index 06d5c90851f..239a2d06c45 100644
--- a/3rdparty/expat/lib/xmltok_impl.c
+++ b/3rdparty/expat/lib/xmltok_impl.c
@@ -1,4 +1,4 @@
-/* This file is included!
+/* This file is included (from xmltok.c, 1-3 times depending on XML_MIN_SIZE)!
__ __ _
___\ \/ /_ __ __ _| |_
/ _ \\ /| '_ \ / _` | __|
@@ -7,7 +7,16 @@
|_| XML parser
Copyright (c) 1997-2000 Thai Open Source Software Center Ltd
- Copyright (c) 2000-2017 Expat development team
+ Copyright (c) 2000 Clark Cooper <coopercc@users.sourceforge.net>
+ Copyright (c) 2002 Fred L. Drake, Jr. <fdrake@users.sourceforge.net>
+ Copyright (c) 2002-2016 Karl Waclawek <karl@waclawek.net>
+ Copyright (c) 2016-2022 Sebastian Pipping <sebastian@pipping.org>
+ Copyright (c) 2017 Rhodri James <rhodri@wildebeest.org.uk>
+ Copyright (c) 2018 Benjamin Peterson <benjamin@python.org>
+ Copyright (c) 2018 Anton Maklakov <antmak.pub@gmail.com>
+ Copyright (c) 2019 David Loffredo <loffredo@steptools.com>
+ Copyright (c) 2020 Boris Kolpackov <boris@codesynthesis.com>
+ Copyright (c) 2022 Martin Ettl <ettl.martin78@googlemail.com>
Licensed under the MIT license:
Permission is hereby granted, free of charge, to any person obtaining
@@ -32,7 +41,7 @@
#ifdef XML_TOK_IMPL_C
-# ifndef IS_INVALID_CHAR
+# ifndef IS_INVALID_CHAR // i.e. for UTF-16 and XML_MIN_SIZE not defined
# define IS_INVALID_CHAR(enc, ptr, n) (0)
# endif
@@ -61,7 +70,7 @@
case BT_LEAD##n: \
if (end - ptr < n) \
return XML_TOK_PARTIAL_CHAR; \
- if (! IS_NAME_CHAR(enc, ptr, n)) { \
+ if (IS_INVALID_CHAR(enc, ptr, n) || ! IS_NAME_CHAR(enc, ptr, n)) { \
*nextTokPtr = ptr; \
return XML_TOK_INVALID; \
} \
@@ -88,9 +97,9 @@
# define CHECK_NMSTRT_CASE(n, enc, ptr, end, nextTokPtr) \
case BT_LEAD##n: \
- if (end - ptr < n) \
+ if ((end) - (ptr) < (n)) \
return XML_TOK_PARTIAL_CHAR; \
- if (! IS_NMSTRT_CHAR(enc, ptr, n)) { \
+ if (IS_INVALID_CHAR(enc, ptr, n) || ! IS_NMSTRT_CHAR(enc, ptr, n)) { \
*nextTokPtr = ptr; \
return XML_TOK_INVALID; \
} \
@@ -116,7 +125,8 @@
# define PREFIX(ident) ident
# endif
-# define HAS_CHARS(enc, ptr, end, count) (end - ptr >= count * MINBPC(enc))
+# define HAS_CHARS(enc, ptr, end, count) \
+ ((end) - (ptr) >= ((count) * MINBPC(enc)))
# define HAS_CHAR(enc, ptr, end) HAS_CHARS(enc, ptr, end, 1)
@@ -1134,6 +1144,10 @@ PREFIX(prologTok)(const ENCODING *enc, const char *ptr, const char *end,
case BT_LEAD##n: \
if (end - ptr < n) \
return XML_TOK_PARTIAL_CHAR; \
+ if (IS_INVALID_CHAR(enc, ptr, n)) { \
+ *nextTokPtr = ptr; \
+ return XML_TOK_INVALID; \
+ } \
if (IS_NMSTRT_CHAR(enc, ptr, n)) { \
ptr += n; \
tok = XML_TOK_NAME; \
@@ -1262,7 +1276,7 @@ PREFIX(attributeValueTok)(const ENCODING *enc, const char *ptr, const char *end,
switch (BYTE_TYPE(enc, ptr)) {
# define LEAD_CASE(n) \
case BT_LEAD##n: \
- ptr += n; \
+ ptr += n; /* NOTE: The encoding has already been validated. */ \
break;
LEAD_CASE(2)
LEAD_CASE(3)
@@ -1331,7 +1345,7 @@ PREFIX(entityValueTok)(const ENCODING *enc, const char *ptr, const char *end,
switch (BYTE_TYPE(enc, ptr)) {
# define LEAD_CASE(n) \
case BT_LEAD##n: \
- ptr += n; \
+ ptr += n; /* NOTE: The encoding has already been validated. */ \
break;
LEAD_CASE(2)
LEAD_CASE(3)
@@ -1510,7 +1524,7 @@ PREFIX(getAtts)(const ENCODING *enc, const char *ptr, int attsMax,
state = inName; \
}
# define LEAD_CASE(n) \
- case BT_LEAD##n: \
+ case BT_LEAD##n: /* NOTE: The encoding has already been validated. */ \
START_NAME ptr += (n - MINBPC(enc)); \
break;
LEAD_CASE(2)
@@ -1722,7 +1736,7 @@ PREFIX(nameLength)(const ENCODING *enc, const char *ptr) {
switch (BYTE_TYPE(enc, ptr)) {
# define LEAD_CASE(n) \
case BT_LEAD##n: \
- ptr += n; \
+ ptr += n; /* NOTE: The encoding has already been validated. */ \
break;
LEAD_CASE(2)
LEAD_CASE(3)
@@ -1767,7 +1781,7 @@ PREFIX(updatePosition)(const ENCODING *enc, const char *ptr, const char *end,
switch (BYTE_TYPE(enc, ptr)) {
# define LEAD_CASE(n) \
case BT_LEAD##n: \
- ptr += n; \
+ ptr += n; /* NOTE: The encoding has already been validated. */ \
pos->columnNumber++; \
break;
LEAD_CASE(2)