/usr/include/openvas/hosts_gatherer.h is in libopenvas2-dev 2.0.4-2.1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 | /*
 * Copyright (C) 1999 Renaud Deraison
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library 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
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, write to the Free
 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
#ifndef HOSTS_GATHERER_H__
#define HOSTS_GATHERER_H__
#ifndef INADDR_NONE
#define INADDR_NONE 0xffffffff
#endif
#undef DEBUG
#undef DEBUG_HIGH
/* Flags for hg_hlobals */
#define HG_NFS                1 
#define HG_DNS_AXFR           2
#define HG_SUBNET             4
#define HG_PING       	      8
#define HG_REVLOOKUP 	     16  /* Are we allowed to use the DNS ? */
#define HG_REVLOOKUP_AS_PING 32 
#define HG_DISTRIBUTE	     64
struct hg_host {
	char * hostname;	/**< Host name                    */
        char * domain;		/**< Same pointer as hostname! Don't free it! */
        struct in_addr addr;	/**< Host IP   	        	  */
        int    cidr_netmask;	/**< CIDR-format netmask          */
				/* When given a /N notation, we 
				   put this as the upper limit
				   of the network */
	struct in_addr min;
	struct in_addr max;
	int	use_max:1;	/* use the field above ?	*/
 	unsigned int    tested:1;
	unsigned int    alive:1;
	struct hg_host * next;
	};
struct hg_globals {
	struct hg_host * host_list;    /**< List of tested hosts.       */
	struct hg_host * tested;       /**< Tested subnets and domains. */
	int		  flags;       /**< Options.		        */
	char 		* input;       /**< e.g. hostname               */
	char 		* marker;
	int	counter;
	unsigned int	distribute;
	};
		 
struct hg_globals * hg_init(char *, int);
int hg_next_host(struct hg_globals *, struct in_addr *, char *, int);
void   hg_cleanup  (struct hg_globals *);
int hg_test_syntax(char * hostname, int flags);
#endif
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