From 9b76e9d2c7bdd413e36432b64a0022852a484dea Mon Sep 17 00:00:00 2001
From: Scott Worley <scottworley@scottworley.com>
Date: Wed, 13 Sep 2023 23:43:01 -0700
Subject: [PATCH] Fix memory leak

---
 Changelog        | 3 +++
 common.c         | 2 +-
 common.h         | 2 +-
 tl-append-test.c | 3 ++-
 tl-append.c      | 3 ++-
 5 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/Changelog b/Changelog
index 899f4dc..7a11b0e 100644
--- a/Changelog
+++ b/Changelog
@@ -1,5 +1,8 @@
 # Changelog
 
+## Unrelased
+- Fix memory leak
+
 ## [1.0.0] - 2023-09-13
 
 Initial release
diff --git a/common.c b/common.c
index 747111b..88e7b73 100644
--- a/common.c
+++ b/common.c
@@ -17,7 +17,7 @@ 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;
diff --git a/common.h b/common.h
index 93d722f..3563d00 100644
--- a/common.h
+++ b/common.h
@@ -6,4 +6,4 @@ void die(const char *message);
 
 void die_err(const char *message);
 
-const char *encode_time(time_t t);
+char *encode_time(time_t t);
diff --git a/tl-append-test.c b/tl-append-test.c
index e712c6f..ee5d3f7 100644
--- a/tl-append-test.c
+++ b/tl-append-test.c
@@ -171,7 +171,7 @@ static void test_encode_time() {
   if (tt == (time_t)-1)
     die_err("Can't pack time?");
 
-  const char *encoded = encode_time(tt);
+  char *encoded = encode_time(tt);
   /* Loose check to allow for daylight savings time changes between the current
    * time and the target time.  :( */
   assert(encoded[0] == '2');
@@ -194,6 +194,7 @@ static void test_encode_time() {
   assert(encoded[17] == '1');
   assert(encoded[18] == '6');
   assert(encoded[19] == '\0');
+  free(encoded);
 }
 
 static FILE *take_lock(FILE *f, char *lock_type) {
diff --git a/tl-append.c b/tl-append.c
index 52d2602..edea9e9 100644
--- a/tl-append.c
+++ b/tl-append.c
@@ -136,7 +136,7 @@ static void write_acknowledgment(conf_t *conf) {
 }
 
 static void lock_and_write_line(conf_t *conf, const char *line) {
-  const char *now = encode_time(time(NULL));
+  char *now = encode_time(time(NULL));
   FILE *f = fopen(FILENAME, "a");
 
   take_lock(conf, f);
@@ -145,6 +145,7 @@ static void lock_and_write_line(conf_t *conf, const char *line) {
   if (fclose(f) != 0)
     die_err("Error closing output file");
 
+  free(now);
   write_acknowledgment(conf);
 }
 
-- 
2.44.1