tests: Fix failing after year 2038

For #439

src/purging_rmw.c

@@ -42,49 +42,54 @@ bool
 is_time_to_purge(st_time *st_time_var, const char *file)
 {
   const int BUF_TIME = 80;
+  char time_prev[BUF_TIME];
+  bool purge_needed = true;
 
+  // Open the file for reading
   FILE *fp = fopen(file, "r");
-  bool init = (fp);
   if (fp)
   {
-    char time_prev[BUF_TIME];
+    // Read the previous time from the file
+    if (fgets(time_prev, sizeof(time_prev), fp) != NULL)
+    {
+      trim_whitespace(time_prev);
+      long prev_time = atol(time_prev);
+      // fprintf(stderr, "%ld\n", prev_time);
 
-    if (fgets(time_prev, sizeof time_prev, fp) == NULL)
+      // Check if the difference is less than a day
+      purge_needed = ((st_time_var->now - prev_time) < SECONDS_IN_A_DAY) ? false : true;
+    }
+    else
     {
       print_msg_error();
       printf("while getting line from %s\n", file);
       perror(__func__);
-      close_file(&fp, file, __func__);
-      exit(EXIT_FAILURE);
     }
-
-    trim_whitespace(time_prev);
-    close_file(&fp, file, __func__);
-
-    if ((st_time_var->now - atoi(time_prev)) < SECONDS_IN_A_DAY)
-      return false;
+    fclose(fp);                 // Close the file after reading
   }
+  else if (errno == ENOENT)
+    purge_needed = false;
 
+  // Open the file for writing to update the time
   fp = fopen(file, "w");
   if (fp)
   {
     fprintf(fp, "%ld\n", st_time_var->now);
-    close_file(&fp, file, __func__);
 
-    /*
-     * if this is the first time the file got created, it's very likely
-     * indeed that purge does not need to run. Only return FALSE if the
-     * file didn't previously exist.
-     */
-    return init;
+    // Check for errors when closing the file after writing
+    if (fclose(fp) != 0)
+    {
+      perror("Error closing file after write");
+      exit(EXIT_FAILURE);
+    }
+  }
+  else
+  {
+    open_err(file, __func__);
+    exit(errno);                // Exit if unable to write the file
   }
 
-  /*
-   * if we can't even write this file to the config directory, something
-   * is not right. Make it fatal.
-   */
-  open_err(file, __func__);
-  exit(errno);
+  return purge_needed;
 }
 
 
@@ -195,7 +200,7 @@ do_file_purge(char *purge_target, const rmw_options *cli_user_options,
         // sleep(1);
       }
       else
-       printf("-%s\n", pt_basename);
+        printf("-%s\n", pt_basename);
     }
     else
       msg_err_remove(trashinfo_entry_realpath, __func__);

src/time_rmw.c

@@ -32,9 +32,15 @@ set_time_string(char *tm_str, const size_t len, const char *format,
                 time_t time_t_now)
 {
   struct tm result;
-  localtime_r(&time_t_now, &result);
+  if (localtime_r(&time_t_now, &result) == NULL)
+  {
+    fputs("Error: localtime_r() failed for time_t value beyond 32-bit limit.\n", stderr);
+    exit(EXIT_FAILURE);
+  }
   strftime(tm_str, len, format, &result);
   trim_whitespace(tm_str);
+
+  return;
 }
 
 /*!
@@ -64,6 +70,7 @@ void
 init_time_vars(st_time *x)
 {
   x->now = time(NULL);
+  // x->now = 0x80000000;
 
   set_which_deletion_date(x->t_fmt);
 

test/meson.build

@@ -3,6 +3,29 @@ add_test_setup(
   env: 'RMW_FAKE_MEDIA_ROOT=true'
   )
 
+#
+# This does not work
+#
+#faketime_lib = cc.find_library(
+#  'faketime',
+#  dirs: [
+#    '/usr/lib/faketime',
+#    '/lib/x86_64-linux-gnu/faketime',
+#    '/lib/aarch64-linux-gnu/faketime'
+#    ],
+#  required: false
+#  )
+
+# TODO: Detect whether ubsan is required or not, determine the path
+add_test_setup(
+    'epochalypse',
+    env: [
+        #'LD_PRELOAD=' + faketime_lib.full_path(),
+        'LD_PRELOAD=/usr/lib/faketime/libfaketime.so.1',
+        'FAKETIME=+14y'
+    ]
+)
+
 test_cases = [
   'strings_rmw',
   'utils_rmw',