LXR uboot/board/hymod/fetch.c

   1/*
   2 * (C) Copyright 2001
   3 * Murray Jensen, CSIRO-MIT, <Murray.Jensen@csiro.au>
   4 *
   5 * See file CREDITS for list of people who contributed to this
   6 * project.
   7 *
   8 * This program is free software; you can redistribute it and/or
   9 * modify it under the terms of the GNU General Public License as
  10 * published by the Free Software Foundation; either version 2 of
  11 * the License, or (at your option) any later version.
  12 *
  13 * This program is distributed in the hope that it will be useful,
  14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 * GNU General Public License for more details.
  17 *
  18 * You should have received a copy of the GNU General Public License
  19 * along with this program; if not, write to the Free Software
  20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21 * MA 02111-1307 USA
  22 */
  23
  24#include <common.h>
  25#include <net.h>
  26
  27/* imports from input.c */
  28extern int hymod_get_ethaddr (void);
  29
  30int
  31fetch_and_parse (char *fn, ulong addr, int (*cback)(uchar *, uchar *))
  32{
  33        char *ethaddr;
  34        uchar *fp, *efp;
  35        int rc, count = 0;
  36
  37        while ((ethaddr = getenv ("ethaddr")) == NULL || *ethaddr == '\0') {
  38
  39                printf ("*** Ethernet address is%s not set\n",
  40                        count == 0 ? "" : " STILL");
  41
  42                if ((rc = hymod_get_ethaddr ()) < 0) {
  43                        if (rc == -1)
  44                                puts ("\n*** interrupted!");
  45                        else
  46                                puts ("\n*** timeout!");
  47                        printf (" - fetch of '%s' aborted\n", fn);
  48                        return (0);
  49                }
  50
  51                count++;
  52        }
  53
  54        copy_filename (BootFile, fn, sizeof (BootFile));
  55        load_addr = addr;
  56        NetBootFileXferSize = 0;
  57
  58        if (NetLoop(TFTPGET) == 0) {
  59                printf ("tftp transfer of file '%s' failed\n", fn);
  60                return (0);
  61        }
  62
  63        if (NetBootFileXferSize == 0) {
  64                printf ("can't determine size of file '%s'\n", fn);
  65                return (0);
  66        }
  67
  68        fp = (uchar *)load_addr;
  69        efp = fp + NetBootFileXferSize;
  70
  71        do {
  72                uchar *name, *value;
  73
  74                if (*fp == '#' || *fp == '\n') {
  75                        /* skip this line */
  76                        while (fp < efp && *fp++ != '\n')
  77                                ;
  78                        continue;
  79                }
  80
  81                name = fp;
  82
  83                while (fp < efp && *fp != '=' && *fp != '\n')
  84                        fp++;
  85                if (fp >= efp)
  86                        break;
  87                if (*fp == '\n') {
  88                        fp++;
  89                        continue;
  90                }
  91                *fp++ = '\0';
  92
  93                value = fp;
  94
  95                while (fp < efp && *fp != '\n')
  96                        fp++;
  97                if (fp[-1] == '\r')
  98                        fp[-1] = '\0';
  99                *fp++ = '\0';   /* ok if we go off the end here */
 100
 101                if ((*cback)(name, value) == 0)
 102                        return (0);
 103
 104        } while (fp < efp);
 105
 106        return (1);
 107}
 108