cpio: do not call strftime() with NULL timeptr

Fixes libarchive#1935
mmatuska · Jul 25, 2023 · 2bc4ba9 · 2bc4ba9
1 parent 3cfae35
commit 2bc4ba9
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/cpio/cpio.c b/cpio/cpio.c
@@ -1210,7 +1210,10 @@ list_item_verbose(struct cpio *cpio, struct archive_entry *entry)
 #else
 	ltime = localtime(&mtime);
 #endif
-	strftime(date, sizeof(date), fmt, ltime);
+	if (ltime != NULL)
+		strftime(date, sizeof(date), fmt, ltime);
+	else
+		strcpy(date, "invalid mtime");
 
 	fprintf(out, "%s%3d %-8s %-8s %8s %12s %s",
 	    archive_entry_strmode(entry),