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parser: Use size_t when subtracting input buffer pointers

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Avoid integer overflows.
This commit is contained in:
Nick Wellnhofer 2023-03-12 19:06:19 +01:00
parent 9a6ca81612
commit b75976e029
2 changed files with 4 additions and 3 deletions
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2
HTMLparser.c
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@ -3875,7 +3875,7 @@ htmlCheckEncodingDirect(htmlParserCtxtPtr ctxt, const xmlChar *encoding) {
(ctxt->input->buf->raw != NULL) &&
(ctxt->input->buf->buffer != NULL)) {
int nbchars;
int processed;
size_t processed;
/*
* convert as much as possible to the parser reading buffer.

5
parser.c
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@ -9350,7 +9350,7 @@ xmlParseStartTag2(xmlParserCtxtPtr ctxt, const xmlChar **pref,
int maxatts = ctxt->maxatts;
int nratts, nbatts, nbdef, inputid;
int i, j, nbNs, attval;
unsigned long cur;
size_t cur;
int nsNr = ctxt->nsNr;
if (RAW != '<') return(NULL);
@ -11422,7 +11422,8 @@ xmlCheckCdataPush(const xmlChar *utf, int len, int complete) {
static int
xmlParseTryOrFinish(xmlParserCtxtPtr ctxt, int terminate) {
int ret = 0;
int avail, tlen;
int tlen;
size_t avail;
xmlChar cur, next;
if (ctxt->input == NULL)