sys/arch/i386/stand/netboot/devopen.c

   1 /*      $NetBSD: devopen.c,v 1.7 2005/12/11 12:17:49 christos Exp $      */
   2
   3 /*
   4  * Copyright (c) 1996, 1998
   5  *      Matthias Drochner.  All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26  *
  27  */
  28
  29 /*
  30  * bootfile from tftp overrides!
  31  * TODO: pass (net) device to net_open
  32  */
  33
  34 #include <sys/types.h>
  35 #include <netinet/in.h>
  36 #include <netinet/in_systm.h>
  37
  38 #include <lib/libsa/stand.h>
  39 #include <lib/libkern/libkern.h>
  40 #include <lib/libsa/net.h>      /* global "bootfile" */
  41
  42 #include <libi386.h>
  43 #ifdef _STANDALONE
  44 #include <bootinfo.h>
  45 #endif
  46 #include "dev_net.h"
  47
  48 #ifdef _STANDALONE
  49 struct btinfo_bootpath bibp;
  50 #endif
  51
  52 int
  53 devopen(struct open_file *f, const char *fname, char **file)
  54 {
  55         struct devsw   *dp;
  56         int             error = 0;
  57
  58         dp = &devsw[0];
  59         f->f_dev = dp;
  60
  61         if(fname)
  62                 strncpy(bootfile, fname, FNAME_SIZE);
  63
  64         error = net_open(f);
  65
  66         if (bootfile[0])
  67                 *file = bootfile;
  68         else
  69                 *file = (char *) fname;
  70
  71 #ifdef _STANDALONE
  72         strncpy(bibp.bootpath, *file, sizeof(bibp.bootpath));
  73         BI_ADD(&bibp, BTINFO_BOOTPATH, sizeof(bibp));
  74 #endif
  75
  76         return (error);
  77 }