grub/grub-core/kern/emu/misc.c

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/*
* 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 <error.h>
#include <stdio.h>
#include <stdlib.h>
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#include <stdint.h>
#include <string.h>
#include <sys/time.h>
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#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#ifdef HAVE_LIMITS_H
#include <limits.h>
#endif
#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>
#ifdef HAVE_SYS_PARAM_H
# include <sys/param.h>
#endif
#ifdef HAVE_SYS_MOUNT_H
# include <sys/mount.h>
#endif
#ifdef HAVE_SYS_MNTTAB_H
# include <stdio.h> /* Needed by sys/mnttab.h. */
# include <sys/mnttab.h>
#endif
#ifdef __AROS__
#include <dos/dos.h>
#include <dos/filesystem.h>
#include <dos/exall.h>
#include <proto/dos.h>
#endif
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;
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p = malloc (size);
if (! p)
grub_util_error ("%s", _("out of memory"));
return p;
}
void *
xrealloc (void *ptr, grub_size_t size)
{
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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;
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len = strlen (str);
newstr = (char *) xmalloc (len + 1);
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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
void
grub_exit (void)
{
exit (1);
}
grub_uint64_t
grub_get_time_ms (void)
{
struct timeval tv;
gettimeofday (&tv, 0);
return (tv.tv_sec * 1000 + tv.tv_usec / 1000);
}
grub_uint32_t
grub_get_rtc (void)
{
struct timeval tv;
gettimeofday (&tv, 0);
return (tv.tv_sec * GRUB_TICKS_PER_SECOND
+ (((tv.tv_sec % GRUB_TICKS_PER_SECOND) * 1000000 + tv.tv_usec)
* GRUB_TICKS_PER_SECOND / 1000000));
}
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#ifdef __MINGW32__
int fsync (int fno __attribute__ ((unused)))
{
return 0;
}
#endif
char *
canonicalize_file_name (const char *path)
{
char *ret;
#ifdef __AROS__
BPTR lck;
const char *p;
p = strchr (path, ':');
if (p && !p[1])
return xstrdup (path);
ret = xmalloc (2048);
lck = Lock ((const unsigned char *) path, SHARED_LOCK);
if (!lck || !NameFromLock (lck, (unsigned char *) ret, 2040))
{
free (ret);
ret = xstrdup (path);
}
if (lck)
UnLock (lck);
#elif defined (__MINGW32__)
ret = xmalloc (PATH_MAX);
if (!_fullpath (ret, path, PATH_MAX))
return NULL;
#elif defined (PATH_MAX)
ret = xmalloc (PATH_MAX);
if (!realpath (path, ret))
return NULL;
#else
ret = realpath (path, NULL);
#endif
return ret;
}