text: /*
   * clients/ksu/xmalloc.c
   *
   * Copyright 1999 by the Massachusetts Institute of Technology.
   * All Rights Reserved.
   *
   * Export of this software from the United States of America may
   *   require a specific license from the United States Government.
   *   It is the responsibility of any person or organization contemplating
   *   export to obtain such a license before exporting.
   * 
   * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
   * distribute this software and its documentation for any purpose and
   * without fee is hereby granted, provided that the above copyright
   * notice appear in all copies and that both that copyright notice and
   * this permission notice appear in supporting documentation, and that
   * the name of M.I.T. not be used in advertising or publicity pertaining
   * to distribution of the software without specific, written prior
   * permission.  Furthermore if you modify this software you must label
   * your software as modified software and not distribute it in such a
   * fashion that it might be confused with the original M.I.T. software.
   * M.I.T. makes no representations about the suitability of
   * this software for any purpose.  It is provided "as is" without express
   * or implied warranty.
   * 
   *
   * Perform simple allocation/copy operations, exiting on failure.
   */
  
  #include "ksu.h"
  #include <stdarg.h>
  #include "k5-platform.h"
  
  void *xmalloc (size_t sz)
  {
      void *ret = malloc (sz);
      if (ret == 0 && sz != 0) {
  	perror (prog_name);
  	exit (1);
      }
      return ret;
  }
  
  void *xrealloc (void *old, size_t newsz)
  {
      void *ret = realloc (old, newsz);
      if (ret == 0 && newsz != 0) {
  	perror (prog_name);
  	exit (1);
      }
      return ret;
  }
  
  void *xcalloc (size_t nelts, size_t eltsz)
  {
      void *ret = calloc (nelts, eltsz);
      if (ret == 0 && nelts != 0 && eltsz != 0) {
  	perror (prog_name);
  	exit (1);
      }
      return ret;
  }
  
  char *xstrdup (const char *src)
  {
      size_t len = strlen (src) + 1;
      char *dst = xmalloc (len);
      memcpy (dst, src, len);
      return dst;
  }
  
  char *xasprintf (const char *format, ...)
  {
      char *out;
      va_list args;
  
      va_start (args, format);
      if (vasprintf(&out, format, args) < 0) {
  	perror (prog_name);
  	exit (1);
      }
      va_end(args);
      return out;
  }
  