usr.sbin/installboot/arch/ews4800mips.c

   1
   2 #if HAVE_NBTOOL_CONFIG_H
   3 #include "nbtool_config.h"
   4 #endif
   5
   6 #include <sys/cdefs.h>
   7 #if !defined(__lint)
   8 __RCSID("$NetBSD: ews4800mips.c,v 1.2 2006/02/18 10:08:07 dsl Exp $");
   9 #endif  /* !__lint */
  10
  11 #include <sys/param.h>
  12 #include <unistd.h>
  13 #include <err.h>
  14 #include <stdio.h>
  15 #include "installboot.h"
  16
  17 static int ews4800mips_setboot(ib_params *);
  18
  19 struct ib_mach ib_mach_ews4800mips =
  20         { "ews4800mips", ews4800mips_setboot, no_clearboot, no_editboot, 0};
  21
  22 struct bbinfo_params ews4800mips_bbparams = {
  23         EWS4800MIPS_BBINFO_MAGIC,
  24         EWS4800MIPS_BOOT_BLOCK_OFFSET,
  25         EWS4800MIPS_BOOT_BLOCK_BLOCKSIZE,
  26         EWS4800MIPS_BOOT_BLOCK_MAX_SIZE,
  27         0,
  28         BBINFO_BIG_ENDIAN,
  29 };
  30
  31 static int
  32 ews4800mips_setboot(ib_params *params)
  33 {
  34         u_int8_t buf[EWS4800MIPS_BOOT_BLOCK_MAX_SIZE];
  35         int rv;
  36
  37         rv = pread(params->s1fd, buf, sizeof buf, 0);
  38         if (rv == -1) {
  39                 warn("Reading `%s'", params->stage1);
  40                 return 0;
  41         } else if (rv != sizeof buf) {
  42                 warnx("Reading `%s' : short read", params->stage1);
  43                 return 0;
  44         }
  45
  46         if (params->flags & IB_NOWRITE)
  47                 return 1;
  48
  49         if (params->flags & IB_VERBOSE)
  50                 printf("Writing boot block\n");
  51
  52         rv = pwrite(params->fsfd, buf, sizeof buf, 0);
  53         if (rv == -1) {
  54                 warn("Writing `%s'", params->filesystem);
  55                 return 0;
  56         } else if (rv != sizeof buf) {
  57                 warnx("Writing `%s': short write", params->filesystem);
  58                 return 0;
  59         }
  60
  61         return 1;
  62 }