openwrt/package/busybox/patches/110-telnetd.patch

   1 diff -ur busybox-1.1.0/networking/telnetd.c busybox-1.1.0-owrt/networking/telnetd.c
   2 --- busybox-1.1.0/networking/telnetd.c  2006-01-11 06:43:51.000000000 +0100
   3 +++ busybox-1.1.0-owrt/networking/telnetd.c     2006-01-14 17:41:20.000000000 +0100
   4 @@ -45,6 +45,7 @@
   5  #include <arpa/telnet.h>
   6  #include <ctype.h>
   7  #include <sys/syslog.h>
   8 +#include <net/if.h>
   9
  10  #include "busybox.h"
  11
  12 @@ -394,11 +395,13 @@
  13         struct in_addr bind_addr = { .s_addr = 0x0 };
  14  #endif /* CONFIG_FEATURE_TELNETD_INETD */
  15         int c;
  16 +       char *interface_name = NULL;
  17 +       struct ifreq interface;
  18         static const char options[] =
  19  #ifdef CONFIG_FEATURE_TELNETD_INETD
  20 -               "f:l:";
  21 +               "i:f:l:";
  22  #else /* CONFIG_EATURE_TELNETD_INETD */
  23 -               "f:l:p:b:";
  24 +               "i:f:l:p:b:";
  25  #endif /* CONFIG_FEATURE_TELNETD_INETD */
  26         int maxlen, w, r;
  27
  28 @@ -413,6 +416,9 @@
  29                         case 'f':
  30                                 issuefile = optarg;
  31                                 break;
  32 +                       case 'i':
  33 +                               interface_name = strdup(optarg);
  34 +                               break;
  35                         case 'l':
  36                                 loginpath = optarg;
  37                                 break;
  38 @@ -465,6 +471,13 @@
  39         sa.sin_addr = bind_addr;
  40  #endif
  41
  42 +       /* Set it to listen on the specified interface */
  43 +       if (interface_name) {
  44 +               strncpy(interface.ifr_ifrn.ifrn_name, interface_name, IFNAMSIZ);
  45 +               (void)setsockopt(master_fd, SOL_SOCKET,
  46 +                               SO_BINDTODEVICE, &interface, sizeof(interface));
  47 +       }
  48 +
  49         if (bind(master_fd, (struct sockaddr *) &sa, sizeof(sa)) < 0) {
  50                 bb_perror_msg_and_die("bind");
  51         }