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Fix crash while converting empty vector to X data

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* src/xselect.c (lisp_data_to_selection_data): Assume an empty
vector represents INTEGER data, instead of blindly trying to
aref it's first element.
This commit is contained in:
Po Lu 2022-09-05 09:51:05 +08:00
parent f07505d1ec
commit 21c8a9d944
1 changed files with 11 additions and 1 deletions
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12
src/xselect.c
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@ -2017,7 +2017,17 @@ lisp_data_to_selection_data (struct x_display_info *dpyinfo,
ptrdiff_t i;
ptrdiff_t size = ASIZE (obj);
if (SYMBOLP (AREF (obj, 0)))
if (!size)
{
/* This vector is empty and of unknown type. Assume that it
is a vector of integers. */
cs->data = NULL;
cs->format = 32;
cs->size = 0;
type = QINTEGER;
}
else if (SYMBOLP (AREF (obj, 0)))
/* This vector is an ATOM set */
{
void *data;