/usr/include/wulfware/libwulf_wulfhost.h is in libwulf-dev 2.6.0-0ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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*========================================================================
* $Id: libwulf_wulfhost.h 90 2004-09-30 17:38:02Z rgb $
*
* See copyright in copyright.h and the accompanying file COPYING
*========================================================================
*/
#include <wulfware/libwulf_copyright.h>
/* libxml includes */
/*
* COMPAT using xml-config --cflags to get the include path this will
* work with both
*/
#include <libxml/xmlmemory.h>
#include <libxml/parser.h>
#include <libxml/xpath.h>
/* We use these for certain buffer sizes */
#define K 1024
#define K4 4096
#define K64 65536
/*
* This defines some flags to control just what the daemon sends and how.
* Each is sort of documented in place.
*/
typedef struct {
int compress; /* Do we compress xml output? */
int whitespace; /* Do we squeeze out whitespace? */
/*
* All the following toggle various components of the return. Some of
* these are only needed "once" in a typical monitoring session anyway
* and can be pulled from the init return (which always sends
* "everything"). Future developers should note the 1:1 correspondance
* between many of these flags and "init_XXXX.c" and "update_XXXX.c"
* sources and calls.
*/
/* system call stuff */
int identity; /* Do we update system identity? */
int time; /* Do we update system time? */
int users; /* Do we update system pids? */
/* proc-derived stuff */
int cpuinfo; /* Do we update proc cpuinfo? */
int loadavg; /* Do we update proc loadavg? */
int meminfo; /* Do we update proc meminfo? */
int net; /* Do we update proc net? */
int stat; /* Do we update proc stat? */
int sysvipc; /* Do we update proc shared memory stuff? */
int uptime; /* Do we update proc uptime? */
int version; /* Do we update proc (kernel) version? */
/* Processes (in /proc/XXXXX where XXXXX is a pid) */
int pids; /* Do we update pids at all? */
int pidstats; /* (unused) for pidstats */
int cmdline; /* Do we get the cmdline in pids? */
int running; /* Running PIDs or all? */
int root; /* Including those owned by root? */
List *userlist; /* A linked list of usernames to watch */
List *tasklist; /* A linked list of tasknames to watch */
} Dctl;
/*
* This struct contains all per-host State information:
* hostname
* host IP number (character and binary)
* port number
* file descriptor of socket
* flag to indicate active connection
* xmlDocPtr to xmlDoc struct containing the as yet
* unparsed xml returned by a command. Note that this
* space is allocated by the xml parser on EACH call and
* must be freed when we've extracted as much or as little as
* we need. Note also that this CLIENT will have a nontrivial
* memory footprint when run on very large numbers of hosts
* because xmlDocs are lavishly provided with information.
* Value val is the struct containing most values of interest.
*
* Note that the first four values are set by the various
* wulfhost parsing blocks from <host>, <iprange> and <hostrange>
* tags.
*/
typedef struct {
char hostname[K];
char hostip[K];
unsigned long inetaddress;
int port;
int client_fd;
int connected;
xmlDocPtr doc;
xmlXPathContextPtr xp_doc;
Value val;
/*
* To avoid having to re-malloc this every time we clear values
* OR kludge something horrible to preserve the allocated memory,
* we put the linked list for pid's in this struct, not the val
* struct. We still clear its CONTENTS when we clear values.
*/
List *pidlist;
Dctl dctl;
} Host;
/*
* In order to be able to deal with variable numbers of hosts (add
* and delete hosts, for example) hosts are stored in a linked list
* so that we can freely add or delete them. This means that we
* have to walk the list whenever we loop over all hosts.
*/
extern List *hostlist;
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