lib/ddp_gr.c

   1 /*
   2  * lib/ddp_gr.c         Prinbting of DDP (AppleTalk) routing table
   3  *                      used by the NET-LIB.
   4  *
   5  * NET-LIB
   6  *
   7  * Version:     $Id: ddp_gr.c,v 1.4 2002/06/02 05:25:15 ecki Exp $
   8  *
   9  * Author:      Ajax <ajax@firest0rm.org>
  10  *
  11  * Modification:
  12  *  2002-06-02 integrated into main source by Bernd Eckenfels
  13  *
  14  */
  15
  16 /* TODO: name lookups (/etc/atalk.names?  NBP?) */
  17
  18 #include "config.h"
  19
  20 #if HAVE_AFATALK
  21 #include <asm/types.h>
  22 #include <sys/types.h>
  23 #include <sys/socket.h>
  24 #include <linux/atalk.h>
  25 #include <stdlib.h>
  26 #include <stdio.h>
  27 #include <errno.h>
  28 #include <ctype.h>
  29 #include <string.h>
  30 #include <unistd.h>
  31 #include <netinet/in.h>
  32 #include "net-support.h"
  33 #include "pathnames.h"
  34 #include "intl.h"
  35
  36 /* stolen from inet_gr.c */
  37 #define flags_decode(i,o) do {                  \
  38         o[0] = '\0';                            \
  39         if (i & RTF_UP) strcat(o, "U");         \
  40         if (i & RTF_GATEWAY) strcat(o, "G");    \
  41         if (i & RTF_REJECT) strcat(o, "!");     \
  42         if (i & RTF_HOST) strcat(o, "H");       \
  43         if (i & RTF_REINSTATE) strcat(o, "R");  \
  44         if (i & RTF_DYNAMIC) strcat(o, "D");    \
  45         if (i & RTF_MODIFIED) strcat(o, "M");   \
  46         if (i & RTF_DEFAULT) strcat(o, "d");    \
  47         if (i & RTF_ALLONLINK) strcat(o, "a");  \
  48         if (i & RTF_ADDRCONF) strcat(o, "c");   \
  49         if (i & RTF_NONEXTHOP) strcat(o, "o");  \
  50         if (i & RTF_EXPIRES) strcat(o, "e");    \
  51         if (i & RTF_CACHE) strcat(o, "c");      \
  52         if (i & RTF_FLOW) strcat(o, "f");       \
  53         if (i & RTF_POLICY) strcat(o, "p");     \
  54         if (i & RTF_LOCAL) strcat(o, "l");      \
  55         if (i & RTF_MTU) strcat(o, "u");        \
  56         if (i & RTF_WINDOW) strcat(o, "w");     \
  57         if (i & RTF_IRTT) strcat(o, "i");       \
  58         if (i & RTF_NOTCACHED) strcat(o, "n");  \
  59     } while (0)
  60
  61 int DDP_rprint(int options)
  62 {
  63     FILE *fp;
  64     char *dest, *gw, *dev, *flags;
  65     char oflags[32];
  66     char *hdr = "Destination     Gateway         Device          Flags";
  67
  68     fp = fopen(_PATH_PROCNET_ATALK_ROUTE, "r");
  69
  70     if (!fp) {
  71         perror("Error opening " _PATH_PROCNET_ATALK_ROUTE);
  72         fprintf(stderr, "DDP (AppleTalk) not configured on this system.\n");
  73         return 1;
  74     }
  75
  76     fscanf(fp, "%as %as %as %as\n", &dest, &gw, &flags, &dev);
  77     free(dest); free(gw); free(dev); free(flags);
  78
  79     printf("%s\n", hdr);
  80
  81     while (fscanf(fp, "%as %as %as %as\n", &dest, &gw, &flags, &dev) == 4) {
  82         int iflags = atoi(flags);
  83         flags_decode(iflags, oflags);
  84         printf("%-16s%-16s%-16s%-s\n", dest, gw, dev, oflags);
  85         free(dest); free(gw); free(dev); free(flags);
  86     }
  87
  88     fclose(fp);
  89
  90     return 0;
  91
  92 }
  93 #endif