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[smtk-import] add some sanity checks

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Under some circustances values stored in this arrays may be NULL or even
previously freed.  Check them to avoid further crashes.

Signed-off-by: Salvador Cuñat <salvador.cunat@gmail.com>
This commit is contained in:
Salvador Cuñat 2020-04-19 07:54:35 +02:00 committed by Dirk Hohndel
parent 6c9a9b2fb5
commit e139b7b15f
1 changed files with 4 additions and 1 deletions
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5
smtk-import/smartrak.c
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@ -44,7 +44,8 @@ static void smtk_free(char **array, int count)
{
int n;
for (n = 0; n < count; n++)
free(array[n]);
if (array[n])
free(array[n]);
array = NULL;
}
@ -727,6 +728,8 @@ static void smtk_parse_relations(MdbHandle *mdb, struct dive *dive, char *dive_i
/* Get the text associated with the relations */
for (d_runner = diverel_head; d_runner; d_runner = d_runner->next) {
if (! list[d_runner->idx - 1])
continue;
if (tag)
taglist_add_tag(&dive->tag_list, list[d_runner->idx - 1]);
else