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cleanup copyright notices on all files.  I have attempted to be accurate with
the details.  everything is now under Tatu's licence (which I copied from his
readme), and/or the core-sdi bsd-ish thing for deattack, or various openbsd
developers under a 2-term bsd licence.  We're not changing any rules, just
being accurate.

/*
 * Author: Tatu Ylonen <ylo@cs.hut.fi>
 * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
 *                    All rights reserved
 * Created: Mon Mar 20 22:09:17 1995 ylo
 *
 * Versions of malloc and friends that check their results, and never return
 * failure (they call fatal if they encounter an error).
 *
 * As far as I am concerned, the code I have written for this software
 * can be used freely for any purpose.  Any derived versions of this
 * software must be clearly marked as such, and if the derived work is
 * incompatible with the protocol description in the RFC file, it must be
 * called by a name other than "ssh" or "Secure Shell".
 */

/* RCSID("$OpenBSD: xmalloc.h,v 1.5 2000/09/07 20:27:56 deraadt Exp $"); */

#ifndef XMALLOC_H
#define XMALLOC_H

/* Like malloc, but calls fatal() if out of memory. */
void   *xmalloc(size_t size);

/* Like realloc, but calls fatal() if out of memory. */
void   *xrealloc(void *ptr, size_t new_size);

/* Frees memory allocated using xmalloc or xrealloc. */
void    xfree(void *ptr);

/* Allocates memory using xmalloc, and copies the string into that memory. */
char   *xstrdup(const char *str);

#endif				/* XMALLOC_H */