package/network/services/dropbear/patches/012-add-ifdef-guards-for-SO_BINDTODEVICE.patch

   1 From 031d09b47912b2401f4934667c0b6f857ede61ee Mon Sep 17 00:00:00 2001
   2 From: Matt Johnston <matt@ucc.asn.au>
   3 Date: Tue, 18 Jul 2023 23:20:16 +0800
   4 Subject: Add ifdef guards for SO_BINDTODEVICE
   5
   6 ---
   7  netio.c       | 2 ++
   8  svr-runopts.c | 4 ++++
   9  2 files changed, 6 insertions(+)
  10
  11 --- a/netio.c
  12 +++ b/netio.c
  13 @@ -555,10 +555,12 @@ int dropbear_listen(const char* address,
  14                 /* set to reuse, quick timeout */
  15                 setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (void*) &val, sizeof(val));
  16
  17 +#ifdef SO_BINDTODEVICE
  18                 if(interface && setsockopt(sock, SOL_SOCKET, SO_BINDTODEVICE, interface, strlen(interface)) < 0) {
  19                         dropbear_log(LOG_WARNING, "Couldn't set SO_BINDTODEVICE");
  20                         TRACE(("Failed setsockopt with errno failure, %d %s", errno, strerror(errno)))
  21                 }
  22 +#endif
  23
  24  #if defined(IPPROTO_IPV6) && defined(IPV6_V6ONLY)
  25                 if (res->ai_family == AF_INET6) {
  26 --- a/svr-runopts.c
  27 +++ b/svr-runopts.c
  28 @@ -98,8 +98,10 @@ static void printhelp(const char * progn
  29                                         "               (default port is %s if none specified)\n"
  30                                         "-P PidFile     Create pid file PidFile\n"
  31                                         "               (default %s)\n"
  32 +#ifdef SO_BINDTODEVICE
  33                                         "-l <interface>\n"
  34                                         "               interface to bind on\n"
  35 +#endif
  36  #if INETD_MODE
  37                                         "-i             Start for inetd\n"
  38  #endif
  39 @@ -267,9 +269,11 @@ void svr_getopts(int argc, char ** argv)
  40                                 case 'P':
  41                                         next = &svr_opts.pidfile;
  42                                         break;
  43 +#ifdef SO_BINDTODEVICE
  44                                 case 'l':
  45                                         next = &svr_opts.interface;
  46                                         break;
  47 +#endif
  48  #if DO_MOTD
  49                                 /* motd is displayed by default, -m turns it off */
  50                                 case 'm':