grub/grub-core/kern/emu/misc.c
2016-01-22 11:05:32 +01:00

201 lines
3.8 KiB
C

/*
* 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-util.h>
#include <config.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include <sys/time.h>
#include <sys/types.h>
#include <grub/mm.h>
#include <grub/err.h>
#include <grub/env.h>
#include <grub/types.h>
#include <grub/misc.h>
#include <grub/i18n.h>
#include <grub/time.h>
#include <grub/emu/misc.h>
int verbosity;
void
grub_util_warn (const char *fmt, ...)
{
va_list ap;
fprintf (stderr, _("%s: warning:"), program_name);
fprintf (stderr, " ");
va_start (ap, fmt);
vfprintf (stderr, fmt, ap);
va_end (ap);
fprintf (stderr, ".\n");
fflush (stderr);
}
void
grub_util_info (const char *fmt, ...)
{
if (verbosity > 0)
{
va_list ap;
fprintf (stderr, _("%s: info:"), program_name);
fprintf (stderr, " ");
va_start (ap, fmt);
vfprintf (stderr, fmt, ap);
va_end (ap);
fprintf (stderr, ".\n");
fflush (stderr);
}
}
void
grub_util_error (const char *fmt, ...)
{
va_list ap;
fprintf (stderr, _("%s: error:"), program_name);
fprintf (stderr, " ");
va_start (ap, fmt);
vfprintf (stderr, fmt, ap);
va_end (ap);
fprintf (stderr, ".\n");
exit (1);
}
void *
xmalloc (grub_size_t size)
{
void *p;
p = malloc (size);
if (! p)
grub_util_error ("%s", _("out of memory"));
return p;
}
void *
xrealloc (void *ptr, grub_size_t size)
{
ptr = realloc (ptr, size);
if (! ptr)
grub_util_error ("%s", _("out of memory"));
return ptr;
}
char *
xstrdup (const char *str)
{
size_t len;
char *newstr;
len = strlen (str);
newstr = (char *) xmalloc (len + 1);
memcpy (newstr, str, len + 1);
return newstr;
}
#if !defined (GRUB_MKFONT) && !defined (GRUB_BUILD)
char *
xasprintf (const char *fmt, ...)
{
va_list ap;
char *result;
va_start (ap, fmt);
result = grub_xvasprintf (fmt, ap);
if (!result)
grub_util_error ("%s", _("out of memory"));
return result;
}
#endif
#if !defined (GRUB_MACHINE_EMU) || defined (GRUB_UTIL)
void
grub_exit (void)
{
exit (1);
}
#endif
grub_uint64_t
grub_get_time_ms (void)
{
struct timeval tv;
gettimeofday (&tv, 0);
return (tv.tv_sec * 1000 + tv.tv_usec / 1000);
}
size_t
grub_util_get_image_size (const char *path)
{
FILE *f;
size_t ret;
off_t sz;
f = grub_util_fopen (path, "rb");
if (!f)
grub_util_error (_("cannot open `%s': %s"), path, strerror (errno));
fseeko (f, 0, SEEK_END);
sz = ftello (f);
if (sz < 0)
grub_util_error (_("cannot open `%s': %s"), path, strerror (errno));
if (sz != (size_t) sz)
grub_util_error (_("file `%s' is too big"), path);
ret = (size_t) sz;
fclose (f);
return ret;
}
void
grub_util_load_image (const char *path, char *buf)
{
FILE *fp;
size_t size;
grub_util_info ("reading %s", path);
size = grub_util_get_image_size (path);
fp = grub_util_fopen (path, "rb");
if (! fp)
grub_util_error (_("cannot open `%s': %s"), path,
strerror (errno));
if (fread (buf, 1, size, fp) != size)
grub_util_error (_("cannot read `%s': %s"), path,
strerror (errno));
fclose (fp);
}