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[LIBXML2] Update to version 2.9.12. CORE-17766

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This commit is contained in:
Thomas Faber 2021-09-12 13:24:24 -04:00
parent 271556e6f8
commit 40ee59d609
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GPG key ID: 076E7C3D44720826
60 changed files with 3385 additions and 2832 deletions
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58
sdk/lib/3rdparty/libxml2/entities.c vendored
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@ -71,7 +71,7 @@ static xmlEntity xmlEntityApos = {
/**
* xmlEntitiesErrMemory:
* @extra: extra informations
* @extra: extra information
*
* Handle an out of memory condition
*/
@ -210,7 +210,7 @@ xmlAddEntity(xmlDtdPtr dtd, const xmlChar *name, int type,
const xmlChar *content) {
xmlDictPtr dict = NULL;
xmlEntitiesTablePtr table = NULL;
xmlEntityPtr ret;
xmlEntityPtr ret, predef;
if (name == NULL)
return(NULL);
@ -223,6 +223,44 @@ xmlAddEntity(xmlDtdPtr dtd, const xmlChar *name, int type,
case XML_INTERNAL_GENERAL_ENTITY:
case XML_EXTERNAL_GENERAL_PARSED_ENTITY:
case XML_EXTERNAL_GENERAL_UNPARSED_ENTITY:
predef = xmlGetPredefinedEntity(name);
if (predef != NULL) {
int valid = 0;
/* 4.6 Predefined Entities */
if ((type == XML_INTERNAL_GENERAL_ENTITY) &&
(content != NULL)) {
int c = predef->content[0];
if (((content[0] == c) && (content[1] == 0)) &&
((c == '>') || (c == '\'') || (c == '"'))) {
valid = 1;
} else if ((content[0] == '&') && (content[1] == '#')) {
if (content[2] == 'x') {
xmlChar *hex = BAD_CAST "0123456789ABCDEF";
xmlChar ref[] = "00;";
ref[0] = hex[c / 16 % 16];
ref[1] = hex[c % 16];
if (xmlStrcasecmp(&content[3], ref) == 0)
valid = 1;
} else {
xmlChar ref[] = "00;";
ref[0] = '0' + c / 10 % 10;
ref[1] = '0' + c % 10;
if (xmlStrEqual(&content[2], ref))
valid = 1;
}
}
}
if (!valid) {
xmlEntitiesErr(XML_ERR_ENTITY_PROCESSING,
"xmlAddEntity: invalid redeclaration of predefined"
" entity");
return(NULL);
}
}
if (dtd->entities == NULL)
dtd->entities = xmlHashCreateDict(0, dict);
table = dtd->entities;
@ -666,11 +704,25 @@ xmlEncodeEntitiesInternal(xmlDocPtr doc, const xmlChar *input, int attr) {
} else {
/*
* We assume we have UTF-8 input.
* It must match either:
* 110xxxxx 10xxxxxx
* 1110xxxx 10xxxxxx 10xxxxxx
* 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
* That is:
* cur[0] is 11xxxxxx
* cur[1] is 10xxxxxx
* cur[2] is 10xxxxxx if cur[0] is 111xxxxx
* cur[3] is 10xxxxxx if cur[0] is 1111xxxx
* cur[0] is not 11111xxx
*/
char buf[11], *ptr;
int val = 0, l = 1;
if (*cur < 0xC0) {
if (((cur[0] & 0xC0) != 0xC0) ||
((cur[1] & 0xC0) != 0x80) ||
(((cur[0] & 0xE0) == 0xE0) && ((cur[2] & 0xC0) != 0x80)) ||
(((cur[0] & 0xF0) == 0xF0) && ((cur[3] & 0xC0) != 0x80)) ||
(((cur[0] & 0xF8) == 0xF8))) {
xmlEntitiesErr(XML_CHECK_NOT_UTF8,
"xmlEncodeEntities: input not UTF-8");
if (doc != NULL)