plipconfig.c

   1 /*
   2
   3    plipconfig.c: plip-ifconfig program for the Linux PLIP device driver
   4    Copyright (c) 1994 John Paul Morrison (VE7JPM).
   5
   6    version 0.2
   7
   8    Changed by Alan Cox, to reflect the way SIOCDEVPRIVATE is meant to work
   9    and for the extra parameter added by Niibe.
  10
  11    plipconfig is a quick hack to set PLIP parameters by using driver
  12    ioctls.  plipconfig will no doubt be revised many times as the Linux
  13    PLIP driver and Linux 1.1 mutates.
  14
  15 */
  16
  17 /*
  18    This program is free software; you can redistribute it and/or modify
  19    it under the terms of the GNU General Public License version 2, as
  20    published by the Free Software Foundation.
  21
  22    This program is distributed in the hope that it will be useful, but
  23    WITHOUT ANY WARRANTY; without even the implied warranty of
  24    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  25    General Public License for more details.
  26
  27    You should have received a copy of the GNU General Public License
  28    along with this program; if not, write to the Free Software Foundation,
  29    Inc., 675 Mass Ave, Cambridge MA 02139, USA.
  30 */
  31
  32 #include <stdio.h>
  33 #include <stdlib.h>
  34 #include <string.h>
  35 #include <unistd.h>
  36 #include <sys/socket.h>
  37 #include <sys/ioctl.h>
  38 #include <net/if.h>
  39 #include <linux/if_plip.h>
  40
  41 #include "config.h"
  42 #include "intl.h"
  43 #include "net-support.h"
  44 #include "version.h"
  45
  46 int opt_a = 0;
  47 int opt_i = 0;
  48 int opt_v = 0;
  49 int skfd = -1;
  50
  51 struct ifreq ifr;
  52 struct plipconf *plip;
  53
  54 char *Release = RELEASE,
  55      *Version = "plipconfig 0.2",
  56      *Signature = "John Paul Morrison, Alan Cox et al.";
  57
  58 static void version(void)
  59 {
  60     printf("%s\n%s\n%s\n", Release, Version, Signature);
  61     exit(E_VERSION);
  62 }
  63
  64 void usage(void)
  65 {
  66     fprintf(stderr, _("Usage: plipconfig [-a] [-i] [-v] interface\n"));
  67     fprintf(stderr, _("                  [nibble NN] [trigger NN]\n"));
  68     fprintf(stderr, _("       plipconfig -V | --version\n"));
  69     exit(-1);
  70 }
  71
  72 void print_plip(void)
  73 {
  74     printf(_("%s\tnibble %lu  trigger %lu\n"), ifr.ifr_name, plip->nibble, plip->trigger);
  75 }
  76
  77 int main(int argc, char **argv)
  78 {
  79     int ret = 0;
  80     char **spp;
  81
  82 #if I18N
  83     setlocale (LC_ALL, "");
  84     bindtextdomain("net-tools", "/usr/share/locale");
  85     textdomain("net-tools");
  86 #endif
  87
  88     if ((skfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
  89         perror("socket");
  90         exit(-1);
  91     }
  92     /* Find any options. */
  93     argc--;
  94     argv++;
  95     while (argv[0] && *argv[0] == '-') {
  96         if (!strcmp(*argv, "-a"))
  97             opt_a = 1;
  98         if (!strcmp(*argv, "-v"))
  99             opt_v = 1;
 100         if (!strcmp(*argv, "-V") || !strcmp(*argv, "--version"))
 101             version();
 102         argv++;
 103         argc--;
 104     }
 105
 106     if (argc == 0)
 107         usage();
 108
 109     spp = argv;
 110     strncpy(ifr.ifr_name, *spp++, IFNAMSIZ);
 111     plip=(struct plipconf *)&ifr.ifr_data;
 112
 113     plip->pcmd = PLIP_GET_TIMEOUT;      /* get current settings for device */
 114     if (ioctl(skfd, SIOCDEVPLIP, &ifr) < 0) {
 115         perror("ioctl");
 116         exit(-1);
 117     }
 118     if (*spp == (char *) NULL) {
 119         print_plip();
 120         (void) close(skfd);
 121         exit(0);
 122     }
 123     while (*spp != (char *) NULL) {
 124         if (!strcmp(*spp, "nibble")) {
 125             if (*++spp == NULL)
 126                 usage();
 127             plip->nibble = atoi(*spp);
 128             spp++;
 129             continue;
 130         }
 131         if (!strcmp(*spp, "trigger")) {
 132             if (*++spp == NULL)
 133                 usage();
 134             plip->trigger = atoi(*spp);
 135             spp++;
 136             continue;
 137         }
 138         usage();
 139     }
 140
 141     plip->pcmd = PLIP_SET_TIMEOUT;
 142     if (ioctl(skfd, SIOCDEVPLIP, &ifr) < 0)
 143         perror("ioctl");
 144
 145     print_plip();
 146
 147     /* Close the socket. */
 148     (void) close(skfd);
 149
 150     return (ret);
 151 }