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-rw-r--r--ostctools.c15
1 files changed, 9 insertions, 6 deletions
diff --git a/ostctools.c b/ostctools.c
index 0ae29191a..a1727ce16 100644
--- a/ostctools.c
+++ b/ostctools.c
@@ -174,13 +174,16 @@ void ostctools_import(const char *file, struct dive_table *divetable)
ostcdive->dc.serial = copy_string(tmp);
free(tmp);
- ptr = ostcdive->dc.extra_data;
- while (strcmp(ptr->key, "Serial"))
- ptr = ptr->next;
- if (!strcmp(ptr->value, "0")) {
+ if (ostcdive->dc.extra_data) {
+ ptr = ostcdive->dc.extra_data;
+ while (strcmp(ptr->key, "Serial"))
+ ptr = ptr->next;
+ if (!strcmp(ptr->value, "0")) {
+ add_extra_data(&ostcdive->dc, "Serial", ostcdive->dc.serial);
+ *ptr = *(ptr)->next;
+ }
+ } else
add_extra_data(&ostcdive->dc, "Serial", ostcdive->dc.serial);
- *ptr = *(ptr)->next;
- }
record_dive_to_table(ostcdive, divetable);
mark_divelist_changed(true);