networking/ip.c

   1 /*
   2  * ip.c         "ip" utility frontend.
   3  *
   4  *              This program is free software; you can redistribute it and/or
   5  *              modify it under the terms of the GNU General Public License
   6  *              as published by the Free Software Foundation; either version
   7  *              2 of the License, or (at your option) any later version.
   8  *
   9  * Authors:     Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
  10  *
  11  *
  12  * Changes:
  13  *
  14  * Rani Assaf <rani@magic.metawire.com> 980929: resolve addresses
  15  */
  16
  17 #include <stdio.h>
  18 #include <stdlib.h>
  19 #include <unistd.h>
  20 #include <syslog.h>
  21 #include <fcntl.h>
  22 #include <sys/socket.h>
  23 #include <netinet/in.h>
  24 #include <string.h>
  25
  26 #include "./libiproute/utils.h"
  27 #include "./libiproute/ip_common.h"
  28
  29 #include "busybox.h"
  30
  31 int preferred_family = AF_UNSPEC;
  32 int oneline = 0;
  33 char * _SL_ = NULL;
  34
  35 int ip_main(int argc, char **argv)
  36 {
  37         char *basename;
  38
  39         basename = strrchr(argv[0], '/');
  40         if (basename == NULL)
  41                 basename = argv[0];
  42         else
  43                 basename++;
  44
  45         while (argc > 1) {
  46                 char *opt = argv[1];
  47                 if (strcmp(opt,"--") == 0) {
  48                         argc--; argv++;
  49                         break;
  50                 }
  51                 if (opt[0] != '-')
  52                         break;
  53                 if (opt[1] == '-')
  54                         opt++;
  55                 if (matches(opt, "-family") == 0) {
  56                         argc--;
  57                         argv++;
  58                         if (strcmp(argv[1], "inet") == 0)
  59                                 preferred_family = AF_INET;
  60                         else if (strcmp(argv[1], "inet6") == 0)
  61                                 preferred_family = AF_INET6;
  62                         else if (strcmp(argv[1], "link") == 0)
  63                                 preferred_family = AF_PACKET;
  64                         else
  65                                 invarg(argv[1], "invalid protocol family");
  66                 } else if (strcmp(opt, "-4") == 0) {
  67                         preferred_family = AF_INET;
  68                 } else if (strcmp(opt, "-6") == 0) {
  69                         preferred_family = AF_INET6;
  70                 } else if (strcmp(opt, "-0") == 0) {
  71                         preferred_family = AF_PACKET;
  72                 } else if (matches(opt, "-oneline") == 0) {
  73                         ++oneline;
  74                 } else {
  75                         fprintf(stderr, "Option \"%s\" is unknown, try \"ip -help\".\n", opt);
  76                         exit(-1);
  77                 }
  78                 argc--; argv++;
  79         }
  80
  81         _SL_ = oneline ? "\\" : "\n" ;
  82
  83         if (argc > 1) {
  84 #ifdef CONFIG_FEATURE_IP_ADDRESS
  85                 if (matches(argv[1], "address") == 0)
  86                         return do_ipaddr(argc-2, argv+2);
  87 #endif
  88 #ifdef CONFIG_FEATURE_IP_ROUTE
  89                 if (matches(argv[1], "route") == 0)
  90                         return do_iproute(argc-2, argv+2);
  91 #endif
  92 #ifdef CONFIG_FEATURE_IP_LINK
  93                 if (matches(argv[1], "link") == 0)
  94                         return do_iplink(argc-2, argv+2);
  95 #endif
  96 #ifdef CONFIG_FEATURE_IP_TUNNEL
  97                 if (matches(argv[1], "tunnel") == 0 ||
  98                     strcmp(argv[1], "tunl") == 0)
  99                         return do_iptunnel(argc-2, argv+2);
 100 #endif
 101                 fprintf(stderr, "Object \"%s\" is unknown, try \"ip help\".\n", argv[1]);
 102                 exit(-1);
 103         }
 104 }