qemu/roms/u-boot/board/hymod/fetch.c

   1 /*
   2  * (C) Copyright 2001
   3  * Murray Jensen, CSIRO-MIT, <Murray.Jensen@csiro.au>
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 #include <common.h>
   9 #include <net.h>
  10
  11 /* imports from input.c */
  12 extern int hymod_get_ethaddr (void);
  13
  14 int
  15 fetch_and_parse (char *fn, ulong addr, int (*cback)(uchar *, uchar *))
  16 {
  17         char *ethaddr;
  18         uchar *fp, *efp;
  19         int rc, count = 0;
  20
  21         while ((ethaddr = getenv ("ethaddr")) == NULL || *ethaddr == '\0') {
  22
  23                 printf ("*** Ethernet address is%s not set\n",
  24                         count == 0 ? "" : " STILL");
  25
  26                 if ((rc = hymod_get_ethaddr ()) < 0) {
  27                         if (rc == -1)
  28                                 puts ("\n*** interrupted!");
  29                         else
  30                                 puts ("\n*** timeout!");
  31                         printf (" - fetch of '%s' aborted\n", fn);
  32                         return (0);
  33                 }
  34
  35                 count++;
  36         }
  37
  38         copy_filename (BootFile, fn, sizeof (BootFile));
  39         load_addr = addr;
  40         NetBootFileXferSize = 0;
  41
  42         if (NetLoop(TFTPGET) == 0) {
  43                 printf ("tftp transfer of file '%s' failed\n", fn);
  44                 return (0);
  45         }
  46
  47         if (NetBootFileXferSize == 0) {
  48                 printf ("can't determine size of file '%s'\n", fn);
  49                 return (0);
  50         }
  51
  52         fp = (uchar *)load_addr;
  53         efp = fp + NetBootFileXferSize;
  54
  55         do {
  56                 uchar *name, *value;
  57
  58                 if (*fp == '#' || *fp == '\n') {
  59                         /* skip this line */
  60                         while (fp < efp && *fp++ != '\n')
  61                                 ;
  62                         continue;
  63                 }
  64
  65                 name = fp;
  66
  67                 while (fp < efp && *fp != '=' && *fp != '\n')
  68                         fp++;
  69                 if (fp >= efp)
  70                         break;
  71                 if (*fp == '\n') {
  72                         fp++;
  73                         continue;
  74                 }
  75                 *fp++ = '\0';
  76
  77                 value = fp;
  78
  79                 while (fp < efp && *fp != '\n')
  80                         fp++;
  81                 if (fp[-1] == '\r')
  82                         fp[-1] = '\0';
  83                 *fp++ = '\0';   /* ok if we go off the end here */
  84
  85                 if ((*cback)(name, value) == 0)
  86                         return (0);
  87
  88         } while (fp < efp);
  89
  90         return (1);
  91 }