text: /*
   * Copyright (c) 2018, Exile Heavy Industries
   * All rights reserved.
   * 
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted (subject to the limitations in the disclaimer
   * below) provided that the following conditions are met:
   * 
   * * Redistributions of source code must retain the above copyright notice, this
   *   list of conditions and the following disclaimer.
   * 
   * * Redistributions in binary form must reproduce the above copyright notice,
   *   this list of conditions and the following disclaimer in the documentation
   *   and/or other materials provided with the distribution.
   * 
   * * Neither the name of the copyright holder nor the names of its contributors may be used
   *   to endorse or promote products derived from this software without specific
   *   prior written permission.
   * 
   * NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED BY THIS
   * LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
   * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
   * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
   * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
   * DAMAGE.
   */
  
  #define DFBEADM_MAIN_H
  /* Currently encoded like RGB, but Major, Minor, Patch */
  #define DFBEADM_VER 0x000200
  #define DFBEADM_VER_STRING "0.2.0-DEV"
  #define PFSDELIM '@'
  #define BESEP ':'
  #define TMAX 18
  #define NOTIMP(a) fprintf(stderr,"WRN: %s [%s:%u] %s: -%c is not implemented at this time!\n",__progname,__FILE__,__LINE__,__func__,a)
  
  /* Asserts are a good thing to have across all files */
  #include <assert.h>
  #include <stdbool.h>
  /* necessary inclusions for vfs layer data */
  #include <sys/mount.h>
  #include <sys/param.h>
  #include <sys/ucred.h>
  
  /* for fstab manipulation/verification */
  #include <fstab.h>
  
  /* HAMMER2 specific needs */
  #include <vfs/hammer2/hammer2_ioctl.h>
  
  /* struct to hold the relevant data to rebuild the fstab */
  struct bootenv_data { 
  	struct fstab fstab; /* this should be pretty obvious, but this is each PFS's description in the fstab */
  	struct hammer2_ioc_pfs snapshot; /* this is the PFS we'll be creating a snapshot with */
  	char curlabel[NAME_MAX]; /* this may actually not be necessary, bubt it's the current label of the PFS */
  	int mountfd;
  	bool snap;
  } __packed;
  
  struct efstab_lookup {
  	char mounutpoint[1024];
  	struct fstab fsent;
  };
  
  typedef struct bootenv_data bedata;
  
  extern char *__progname;
  