arch/all-pc/boot/grub2-aros/util/misc.c

   1 /*
   2  *  GRUB  --  GRand Unified Bootloader
   3  *  Copyright (C) 2002,2003,2005,2006,2007,2008,2009,2010  Free Software Foundation, Inc.
   4  *
   5  *  GRUB is free software: you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation, either version 3 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  GRUB is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19 #include <config.h>
  20
  21 #include <errno.h>
  22 #include <setjmp.h>
  23 #include <stdio.h>
  24 #include <stdlib.h>
  25 #include <stdarg.h>
  26 #include <stdint.h>
  27 #include <string.h>
  28 #include <sys/types.h>
  29 #include <sys/time.h>
  30 #include <time.h>
  31
  32 #include <grub/kernel.h>
  33 #include <grub/dl.h>
  34 #include <grub/misc.h>
  35 #include <grub/cache.h>
  36 #include <grub/emu/misc.h>
  37 #include <grub/util/misc.h>
  38 #include <grub/mm.h>
  39 #include <grub/term.h>
  40 #include <grub/time.h>
  41 #include <grub/i18n.h>
  42 #include <grub/script_sh.h>
  43 #include <grub/emu/hostfile.h>
  44
  45 #define ENABLE_RELOCATABLE 0
  46 #ifdef GRUB_BUILD
  47 const char *program_name = GRUB_BUILD_PROGRAM_NAME;
  48 #else
  49 #include "progname.h"
  50 #endif
  51
  52 #ifdef GRUB_UTIL
  53 int
  54 grub_err_printf (const char *fmt, ...)
  55 {
  56   va_list ap;
  57   int ret;
  58
  59   va_start (ap, fmt);
  60   ret = vfprintf (stderr, fmt, ap);
  61   va_end (ap);
  62
  63   return ret;
  64 }
  65 #endif
  66
  67 char *
  68 grub_util_get_path (const char *dir, const char *file)
  69 {
  70   char *path;
  71
  72   path = (char *) xmalloc (strlen (dir) + 1 + strlen (file) + 1);
  73   sprintf (path, "%s/%s", dir, file);
  74   return path;
  75 }
  76
  77 size_t
  78 grub_util_get_image_size (const char *path)
  79 {
  80   FILE *f;
  81   size_t ret;
  82   off_t sz;
  83
  84   f = grub_util_fopen (path, "rb");
  85
  86   if (!f)
  87     grub_util_error (_("cannot open `%s': %s"), path, strerror (errno));
  88
  89   fseeko (f, 0, SEEK_END);
  90
  91   sz = ftello (f);
  92   if (sz < 0)
  93     grub_util_error (_("cannot open `%s': %s"), path, strerror (errno));
  94   if (sz != (size_t) sz)
  95     grub_util_error (_("file `%s' is too big"), path);
  96   ret = (size_t) sz;
  97
  98   fclose (f);
  99
 100   return ret;
 101 }
 102
 103 char *
 104 grub_util_read_image (const char *path)
 105 {
 106   char *img;
 107   FILE *fp;
 108   size_t size;
 109
 110   grub_util_info ("reading %s", path);
 111
 112   size = grub_util_get_image_size (path);
 113   img = (char *) xmalloc (size);
 114
 115   fp = grub_util_fopen (path, "rb");
 116   if (! fp)
 117     grub_util_error (_("cannot open `%s': %s"), path,
 118                      strerror (errno));
 119
 120   if (fread (img, 1, size, fp) != size)
 121     grub_util_error (_("cannot read `%s': %s"), path,
 122                      strerror (errno));
 123
 124   fclose (fp);
 125
 126   return img;
 127 }
 128
 129 void
 130 grub_util_load_image (const char *path, char *buf)
 131 {
 132   FILE *fp;
 133   size_t size;
 134
 135   grub_util_info ("reading %s", path);
 136
 137   size = grub_util_get_image_size (path);
 138
 139   fp = grub_util_fopen (path, "rb");
 140   if (! fp)
 141     grub_util_error (_("cannot open `%s': %s"), path,
 142                      strerror (errno));
 143
 144   if (fread (buf, 1, size, fp) != size)
 145     grub_util_error (_("cannot read `%s': %s"), path,
 146                      strerror (errno));
 147
 148   fclose (fp);
 149 }
 150
 151 void
 152 grub_util_write_image_at (const void *img, size_t size, off_t offset, FILE *out,
 153                           const char *name)
 154 {
 155   grub_util_info ("writing 0x%" GRUB_HOST_PRIxLONG_LONG " bytes at offset 0x%"
 156                   GRUB_HOST_PRIxLONG_LONG,
 157                   (unsigned long long) size, (unsigned long long) offset);
 158   if (fseeko (out, offset, SEEK_SET) == -1)
 159     grub_util_error (_("cannot seek `%s': %s"),
 160                      name, strerror (errno));
 161   if (fwrite (img, 1, size, out) != size)
 162     grub_util_error (_("cannot write to `%s': %s"),
 163                      name, strerror (errno));
 164 }
 165
 166 void
 167 grub_util_write_image (const char *img, size_t size, FILE *out,
 168                        const char *name)
 169 {
 170   grub_util_info ("writing 0x%" GRUB_HOST_PRIxLONG_LONG " bytes", (unsigned long long) size);
 171   if (fwrite (img, 1, size, out) != size)
 172     {
 173       if (!name)
 174         grub_util_error (_("cannot write to the stdout: %s"),
 175                          strerror (errno));
 176       else
 177         grub_util_error (_("cannot write to `%s': %s"),
 178                          name, strerror (errno));
 179     }
 180 }
 181
 182 grub_err_t
 183 grub_script_execute_cmdline (struct grub_script_cmd *cmd __attribute__ ((unused)))
 184 {
 185   return 0;
 186 }
 187
 188 grub_err_t
 189 grub_script_execute_cmdlist (struct grub_script_cmd *cmd __attribute__ ((unused)))
 190 {
 191   return 0;
 192 }
 193
 194 grub_err_t
 195 grub_script_execute_cmdif (struct grub_script_cmd *cmd __attribute__ ((unused)))
 196 {
 197   return 0;
 198 }
 199
 200 grub_err_t
 201 grub_script_execute_cmdfor (struct grub_script_cmd *cmd __attribute__ ((unused)))
 202 {
 203   return 0;
 204 }
 205
 206 grub_err_t
 207 grub_script_execute_cmdwhile (struct grub_script_cmd *cmd __attribute__ ((unused)))
 208 {
 209   return 0;
 210 }
 211
 212 grub_err_t
 213 grub_script_execute (struct grub_script *script)
 214 {
 215   if (script == 0 || script->cmd == 0)
 216     return 0;
 217
 218   return script->cmd->exec (script->cmd);
 219 }
 220
 221 int
 222 grub_getkey (void)
 223 {
 224   return -1;
 225 }
 226
 227 void
 228 grub_refresh (void)
 229 {
 230   fflush (stdout);
 231 }
 232
 233 static void
 234 grub_xputs_real (const char *str)
 235 {
 236   fputs (str, stdout);
 237 }
 238
 239 void (*grub_xputs) (const char *str) = grub_xputs_real;
 240
 241 int
 242 grub_dl_ref (grub_dl_t mod)
 243 {
 244   (void) mod;
 245   return 0;
 246 }
 247
 248 int
 249 grub_dl_unref (grub_dl_t mod)
 250 {
 251   (void) mod;
 252   return 0;
 253 }
 254
 255 /* Some functions that we don't use.  */
 256 void
 257 grub_mm_init_region (void *addr __attribute__ ((unused)),
 258                      grub_size_t size __attribute__ ((unused)))
 259 {
 260 }
 261
 262 void
 263 grub_register_exported_symbols (void)
 264 {
 265 }
 266
 267 /* Used in comparison of arrays of strings with qsort */
 268 int
 269 grub_qsort_strcmp (const void *p1, const void *p2)
 270 {
 271   return strcmp(*(char *const *)p1, *(char *const *)p2);
 272 }
 273