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     bindtextdomain("net-tools", "/usr/share/locale");
  84     textdomain("net-tools");
  85 #endif
  86
  87     if ((skfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
  88         perror("socket");
  89         exit(-1);
  90     }
  91     /* Find any options. */
  92     argc--;
  93     argv++;
  94     while (argv[0] && *argv[0] == '-') {
  95         if (!strcmp(*argv, "-a"))
  96             opt_a = 1;
  97         if (!strcmp(*argv, "-v"))
  98             opt_v = 1;
  99         if (!strcmp(*argv, "-V") || !strcmp(*argv, "--version"))
 100             version();
 101         argv++;
 102         argc--;
 103     }
 104
 105     if (argc == 0)
 106         usage();
 107
 108     spp = argv;
 109     strncpy(ifr.ifr_name, *spp++, IFNAMSIZ);
 110     plip=(struct plipconf *)&ifr.ifr_data;
 111
 112     plip->pcmd = PLIP_GET_TIMEOUT;      /* get current settings for device */
 113     if (ioctl(skfd, SIOCDEVPLIP, &ifr) < 0) {
 114         perror("ioctl");
 115         exit(-1);
 116     }
 117     if (*spp == (char *) NULL) {
 118         print_plip();
 119         (void) close(skfd);
 120         exit(0);
 121     }
 122     while (*spp != (char *) NULL) {
 123         if (!strcmp(*spp, "nibble")) {
 124             if (*++spp == NULL)
 125                 usage();
 126             plip->nibble = atoi(*spp);
 127             spp++;
 128             continue;
 129         }
 130         if (!strcmp(*spp, "trigger")) {
 131             if (*++spp == NULL)
 132                 usage();
 133             plip->trigger = atoi(*spp);
 134             spp++;
 135             continue;
 136         }
 137         usage();
 138     }
 139
 140     plip->pcmd = PLIP_SET_TIMEOUT;
 141     if (ioctl(skfd, SIOCDEVPLIP, &ifr) < 0)
 142         perror("ioctl");
 143
 144     print_plip();
 145
 146     /* Close the socket. */
 147     (void) close(skfd);
 148
 149     return (ret);
 150 }