package/ppp/patches/208-fix_status_code.patch

   1 pppd: Do not clobber exit codes on hangup
   2
   3 When a modem hangup occurs, pppd unconditionally sets the exit status code
   4 to EXIT_HANGUP. This patch only sets EXIT_HANGUP if the exit status code is
   5 not already set to an error value.
   6
   7 The motiviation of this patch is to allow applications which remote control
   8 pppd to react properly on errors, e.g. only redial (relaunch pppd) if there
   9 was a hangup, but not if the CHAP authentication failed.
  10
  11 Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>
  12
  13 --- a/pppd/main.c
  14 +++ b/pppd/main.c
  15 @@ -1048,7 +1048,8 @@ get_input()
  16         }
  17         notice("Modem hangup");
  18         hungup = 1;
  19 -       status = EXIT_HANGUP;
  20 +       if (status == EXIT_OK)
  21 +               status = EXIT_HANGUP;
  22         lcp_lowerdown(0);       /* serial link is no longer available */
  23         link_terminated(0);
  24         return;