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io: Check for memory buffer early in xmlParserInputGrow

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This commit is contained in:
Nick Wellnhofer 2022-11-13 16:56:10 +01:00
parent 22d879bf0a
commit 9feafbc5c5
1 changed files with 4 additions and 4 deletions
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8
parserInternals.c
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@ -299,6 +299,9 @@ xmlParserInputGrow(xmlParserInputPtr in, int len) {
if (in->cur == NULL) return(-1);
if (in->buf->buffer == NULL) return(-1);
/* Don't grow memory buffers. */
if (in->buf->readcallback == NULL) return(0);
CHECK_BUFFER(in);
indx = in->cur - in->base;
@ -308,10 +311,7 @@ xmlParserInputGrow(xmlParserInputPtr in, int len) {
return(0);
}
if (in->buf->readcallback != NULL) {
ret = xmlParserInputBufferGrow(in->buf, len);
} else
return(0);
ret = xmlParserInputBufferGrow(in->buf, len);
in->base = xmlBufContent(in->buf->buffer);
in->cur = in->base + indx;