server/admin.c: Remove spurious `ping' in usage message.

[tripe] / server / tun-slip.c

diff --git a/server/tun-slip.c b/server/tun-slip.c
index 85e9cd8..29f42d5 100644 (file)
--- a/server/tun-slip.c
+++ b/server/tun-slip.c
@@ -9,19 +9,18 @@
  *
  * This file is part of Trivial IP Encryption (TrIPE).
  *
- * TrIPE 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; either version 2 of the License, or
- * (at your option) any later version.
+ * TrIPE 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; either version 3 of the License, or (at your
+ * option) any later version.
  *
- * TrIPE 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.
+ * TrIPE 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 TrIPE; if not, write to the Free Software Foundation,
- * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ * along with TrIPE.  If not, see <https://www.gnu.org/licenses/>.
  */
 
 /*----- Header files ------------------------------------------------------*/
@@ -180,13 +179,13 @@ static void t_read(int fd, unsigned mode, void *v)
  *
  * Arguments:  ---
  *
- * Returns:    ---
+ * Returns:    Zero on success, @-1@ on failure.
  *
  * Use:                Initializes the tunneling system.  Maybe this will require
  *             opening file descriptors or something.
  */
 
-static void t_init(void)
+static int t_init(void)
 {
   char *p, *q;
   dstr d = DSTR_INIT;
@@ -195,7 +194,7 @@ static void t_init(void)
   size_t n;
 
   if ((p = getenv("TRIPE_SLIPIF")) == 0)
-    return;
+    return (0);
 
   /* --- Build the list of available interfaces --- */
 
@@ -241,10 +240,11 @@ static void t_init(void)
       break;
     p++;
   }
-  return;
+  return (0);
 
 whine:
-  moan("bad slip interface list");
+  a_warn("TUN", "-", "slip", "bad-interface-list", A_END);
+  return (-1);
 }
 
 /* --- @t_broken@ --- *