summaryrefslogtreecommitdiffstats
path: root/util/misc.c
blob: d545212d90ec4b69a1150ede1f8a033a8812d019 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
/*
 *  GRUB  --  GRand Unified Bootloader
 *  Copyright (C) 2002,2003,2005,2006,2007,2008,2009,2010  Free Software Foundation, Inc.
 *
 *  GRUB is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  GRUB is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
 */

#include <config.h>

#include <errno.h>
#include <setjmp.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <stdint.h>
#include <string.h>
#include <sys/types.h>
#include <sys/time.h>
#include <time.h>

#include <grub/kernel.h>
#include <grub/dl.h>
#include <grub/misc.h>
#include <grub/cache.h>
#include <grub/emu/misc.h>
#include <grub/util/misc.h>
#include <grub/mm.h>
#include <grub/term.h>
#include <grub/time.h>
#include <grub/i18n.h>
#include <grub/script_sh.h>
#include <grub/emu/hostfile.h>

#define ENABLE_RELOCATABLE 0
#ifdef GRUB_BUILD
const char *program_name = GRUB_BUILD_PROGRAM_NAME;
#else
#include "progname.h"
#endif

#ifdef GRUB_UTIL
int
grub_err_printf (const char *fmt, ...)
{
  va_list ap;
  int ret;

  va_start (ap, fmt);
  ret = vfprintf (stderr, fmt, ap);
  va_end (ap);

  return ret;
}
#endif

char *
grub_util_get_path (const char *dir, const char *file)
{
  char *path;

  path = (char *) xmalloc (strlen (dir) + 1 + strlen (file) + 1);
  sprintf (path, "%s/%s", dir, file);
  return path;
}

char *
grub_util_read_image (const char *path)
{
  char *img;
  FILE *fp;
  size_t size;

  grub_util_info ("reading %s", path);

  size = grub_util_get_image_size (path);
  img = (char *) xmalloc (size);

  fp = grub_util_fopen (path, "rb");
  if (! fp)
    grub_util_error (_("cannot open `%s': %s"), path,
		     strerror (errno));

  if (fread (img, 1, size, fp) != size)
    grub_util_error (_("cannot read `%s': %s"), path,
		     strerror (errno));

  fclose (fp);

  return img;
}

void
grub_util_write_image_at (const void *img, size_t size, off_t offset, FILE *out,
			  const char *name)
{
  grub_util_info ("writing 0x%" GRUB_HOST_PRIxLONG_LONG " bytes at offset 0x%"
		  GRUB_HOST_PRIxLONG_LONG,
		  (unsigned long long) size, (unsigned long long) offset);
  if (fseeko (out, offset, SEEK_SET) == -1)
    grub_util_error (_("cannot seek `%s': %s"),
		     name, strerror (errno));
  if (fwrite (img, 1, size, out) != size)
    grub_util_error (_("cannot write to `%s': %s"),
		     name, strerror (errno));
}

void
grub_util_write_image (const char *img, size_t size, FILE *out,
		       const char *name)
{
  grub_util_info ("writing 0x%" GRUB_HOST_PRIxLONG_LONG " bytes", (unsigned long long) size);
  if (fwrite (img, 1, size, out) != size)
    {
      if (!name)
	grub_util_error (_("cannot write to the stdout: %s"),
			 strerror (errno));
      else
	grub_util_error (_("cannot write to `%s': %s"),
			 name, strerror (errno));
    }
}

grub_err_t
grub_script_execute_cmdline (struct grub_script_cmd *cmd __attribute__ ((unused)))
{
  return 0;
}

grub_err_t
grub_script_execute_cmdlist (struct grub_script_cmd *cmd __attribute__ ((unused)))
{
  return 0;
}

grub_err_t
grub_script_execute_cmdif (struct grub_script_cmd *cmd __attribute__ ((unused)))
{
  return 0;
}

grub_err_t
grub_script_execute_cmdfor (struct grub_script_cmd *cmd __attribute__ ((unused)))
{
  return 0;
}

grub_err_t
grub_script_execute_cmdwhile (struct grub_script_cmd *cmd __attribute__ ((unused)))
{
  return 0;
}

grub_err_t
grub_script_execute (struct grub_script *script)
{
  if (script == 0 || script->cmd == 0)
    return 0;

  return script->cmd->exec (script->cmd);
}

int
grub_getkey (void)
{
  return -1;
}

void
grub_refresh (void)
{
  fflush (stdout);
}

static void
grub_xputs_real (const char *str)
{
  fputs (str, stdout);
}

void (*grub_xputs) (const char *str) = grub_xputs_real;

int
grub_dl_ref (grub_dl_t mod)
{
  (void) mod;
  return 0;
}

int
grub_dl_unref (grub_dl_t mod)
{
  (void) mod;
  return 0;
}

/* Some functions that we don't use.  */
void
grub_mm_init_region (void *addr __attribute__ ((unused)),
		     grub_size_t size __attribute__ ((unused)))
{
}

void
grub_register_exported_symbols (void)
{
}

/* Used in comparison of arrays of strings with qsort */
int
grub_qsort_strcmp (const void *p1, const void *p2)
{
  return strcmp(*(char *const *)p1, *(char *const *)p2);
}