util.h

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#ifndef _UTIL_H
#define _UTIL_H

#include <stdarg.h>

/*
 * Copyright 2011 The Chromium Authors, All Rights Reserved.
 * Copyright 2008 Jon Loeliger, Freescale Semiconductor, Inc.
 *
 * This program 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 2 of the
 * License, or (at your option) any later version.
 *
 *  This program 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 this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
 *                                                                   USA
 */

static inline void __attribute__((noreturn)) die(char * str, ...)
{
    va_list ap;

    va_start(ap, str);
    fprintf(stderr, "FATAL ERROR: ");
    vfprintf(stderr, str, ap);
    exit(1);
}

static inline void *xmalloc(size_t len)
{
    void *new = malloc(len);

    if (!new)
        die("malloc() failed\n");

    return new;
}

static inline void *xrealloc(void *p, size_t len)
{
    void *new = realloc(p, len);

    if (!new)
        die("realloc() failed (len=%d)\n", len);

    return new;
}

extern char *xstrdup(const char *s);
extern char *join_path(const char *path, const char *name);

int util_is_printable_string(const void *data, int len);

/*
 * Parse an escaped character starting at index i in string s.  The resulting
 * character will be returned and the index i will be updated to point at the
 * character directly after the end of the encoding, this may be the '\0'
 * terminator of the string.
 */
char get_escape_char(const char *s, int *i);

char *utilfdt_read(const char *filename);

int utilfdt_read_err(const char *filename, char **buffp);


int utilfdt_write(const char *filename, const void *blob);

int utilfdt_write_err(const char *filename, const void *blob);

int utilfdt_decode_type(const char *fmt, int *type, int *size);

/*
 * This is a usage message fragment for the -t option. It is the format
 * supported by utilfdt_decode_type.
 */

#define USAGE_TYPE_MSG \
    "<type>\ts=string, i=int, u=unsigned, x=hex\n" \
    "\tOptional modifier prefix:\n" \
    "\t\thh or b=byte, h=2 byte, l=4 byte (default)\n";

#endif /* _UTIL_H */