X-Git-Url: http://git.scottworley.com/tl-append/blobdiff_plain/bab98a3a230bcc2161254e5796ec97e1391b4907..ef591a4f51a7a2816d553cdd996eff4bb80ad710:/common.c

diff --git a/common.c b/common.c
index 1bc1102..5f4d993 100644
--- a/common.c
+++ b/common.c
@@ -1,10 +1,27 @@
+/*
+ * tl-append: time-logger appending shell
+ * Copyright (C) 2023  Scott Worley <scottworley@scottworley.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 #define _POSIX_C_SOURCE 2
 #include "common.h"
 
 #include <stdio.h>
 #include <stdlib.h>
 
-const char *FILENAME = "tl.log";
+const char *const FILENAME = "tl.log";
 
 void die(const char *message) {
   fputs(message, stderr);
@@ -17,7 +34,7 @@ void die_err(const char *message) {
   exit(1);
 }
 
-const char *encode_time(time_t t) {
+char *encode_time(time_t t) {
   struct tm tm;
   localtime_r(&t, &tm);
   const size_t size = 20;