source: bootcd/isolinux/syslinux-6.03/com32/lua/src/dhcp.h

/* ----------------------------------------------------------------------- *
 *
 *   Copyright 2007 H. Peter Anvin - All Rights Reserved
 *   Copyright 2011 Timothy J Gleason <timmgleason_at_gmail.com> - All Rights Reserved
 *
 *   Permission is hereby granted, free of charge, to any person
 *   obtaining a copy of this software and associated documentation
 *   files (the "Software"), to deal in the Software without
 *   restriction, including without limitation the rights to use,
 *   copy, modify, merge, publish, distribute, sublicense, and/or
 *   sell copies of the Software, and to permit persons to whom
 *   the Software is furnished to do so, subject to the following
 *   conditions:
 *
 *   The above copyright notice and this permission notice shall
 *   be included in all copies or substantial portions of the Software.
 *
 *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
 *   OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 *   HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 *   WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 *   FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 *   OTHER DEALINGS IN THE SOFTWARE.
 *
 * ----------------------------------------------------------------------- */

#include <stdint.h>

typedef struct dhcp {
  uint8_t       op;                     /* message opcode */
  uint8_t       htype;                  /* Hardware address type */
  uint8_t       hlen;                   /* Hardware address length */
  uint8_t       hops;                   /* Used by relay agents */
  uint32_t      xid;                    /* transaction id */
  uint16_t      secs;                   /* Secs elapsed since client boot */
  uint16_t      flags;                  /* DHCP Flags field */
  uint8_t       ciaddr[4];              /* client IP addr */
  uint8_t       yiaddr[4];              /* 'Your' IP addr. (from server) */
  uint8_t       siaddr[4];              /* Boot server IP addr */
  uint8_t       giaddr[4];              /* Relay agent IP addr */
  uint8_t       chaddr[16];             /* Client hardware addr */
  uint8_t       sname[64];              /* Optl. boot server hostname */
  uint8_t       file[128];              /* boot file name (ascii path) */
  uint8_t       cookie[4];              /* Magic cookie */
  uint8_t       options[1020];          /* Options */
} dhcp_t;