Modules/syslogmodule.c

/***********************************************************
Copyright 1991, 1992, 1993, 1994 by Stichting Mathematisch Centrum,
Amsterdam, The Netherlands.

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Permission to use, copy, modify, and distribute this software and its 
documentation for any purpose and without fee is hereby granted, 
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STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO
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OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

******************************************************************/

/* syslog module */
/* (By Lance Ellinghouse) */

#include "allobjects.h"
#include "modsupport.h"

#include <syslog.h>

static object *
syslog_openlog(self, args)
     object *self;
     object *args;
{
  char *ident = "";
  object *ident_o;
  long logopt = LOG_PID;
  long facility = LOG_USER;
  if (!getargs(args, "(Sll);ident string, logoption, facility", &ident_o, &logopt, &facility))
    if (!getargs(args, "(Sl);ident string, logoption", &ident_o, &logopt))
      if (!getargs(args, "S;ident string", &ident_o))
	return NULL;
  INCREF(ident_o); /* This is needed because openlog() does NOT make a copy
		      and syslog() later uses it.. cannot trash it. */
  ident = getstringvalue(ident_o);
  openlog(ident,logopt,facility);
  INCREF(None);
  return None;
}

static object *
syslog_syslog(self, args)
     object *self;
     object *args;
{
  int   priority = LOG_INFO;
  char *message;

  if (!getargs(args,"(is);priority, message string",&priority,&message))
    if (!getargs(args,"s;message string",&message))
      return NULL;
  syslog(priority, message);
  INCREF(None);
  return None;
}

static object *
syslog_closelog(self, args)
     object *self;
     object *args;
{
	if (!getnoarg(args))
		return NULL;
	closelog();
	INCREF(None);
	return None;
}

static object *
syslog_setlogmask(self, args)
     object *self;
     object *args;
{
  long maskpri;
  if (!getargs(args,"l;mask for priority",&maskpri))
    return NULL;
  setlogmask(maskpri);
  INCREF(None);
  return None;
}

static object *
syslog_log_mask(self, args)
     object *self;
     object *args;
{
  long mask;
  long pri;
  if (!getargs(args,"l",&pri))
    return NULL;
  mask = LOG_MASK(pri);
  return newintobject(mask);
}

static object *
syslog_log_upto(self, args)
     object *self;
     object *args;
{
  long mask;
  long pri;
  if (!getargs(args,"l",&pri))
    return NULL;
  mask = LOG_UPTO(pri);
  return newintobject(mask);
}

/* List of functions defined in the module */

static struct methodlist syslog_methods[] = {
	{"openlog",		syslog_openlog},
	{"closelog",		syslog_closelog},
	{"syslog",              syslog_syslog},
	{"setlogmask",          syslog_setlogmask},
	{"LOG_MASK",            syslog_log_mask},
	{"LOG_UPTO",            syslog_log_upto},
	{NULL,		NULL}		/* sentinel */
};

/* Initialization function for the module */

void
initsyslog()
{
	object *m, *d, *x;

	/* Create the module and add the functions */
	m = initmodule("syslog", syslog_methods);

	/* Add some symbolic constants to the module */
	d = getmoduledict(m);
	x = newintobject(LOG_EMERG);
	dictinsert(d, "LOG_EMERG", x);
	x = newintobject(LOG_ALERT);
	dictinsert(d, "LOG_ALERT", x);
	x = newintobject(LOG_CRIT);
	dictinsert(d, "LOG_CRIT", x);
	x = newintobject(LOG_ERR);
	dictinsert(d, "LOG_ERR", x);
	x = newintobject(LOG_WARNING);
	dictinsert(d, "LOG_WARNING", x);
	x = newintobject(LOG_NOTICE);
	dictinsert(d, "LOG_NOTICE", x);
	x = newintobject(LOG_INFO);
	dictinsert(d, "LOG_INFO", x);
	x = newintobject(LOG_DEBUG);
	dictinsert(d, "LOG_DEBUG", x);
	x = newintobject(LOG_PID);
	dictinsert(d, "LOG_PID", x);
	x = newintobject(LOG_CONS);
	dictinsert(d, "LOG_CONS", x);
	x = newintobject(LOG_NDELAY);
	dictinsert(d, "LOG_NDELAY", x);
	x = newintobject(LOG_NOWAIT);
	dictinsert(d, "LOG_NOWAIT", x);
	x = newintobject(LOG_KERN);
	dictinsert(d, "LOG_KERN", x);
	x = newintobject(LOG_USER);
	dictinsert(d, "LOG_USER", x);
	x = newintobject(LOG_MAIL);
	dictinsert(d, "LOG_MAIL", x);
	x = newintobject(LOG_DAEMON);
	dictinsert(d, "LOG_DAEMON", x);
	x = newintobject(LOG_LPR);
	dictinsert(d, "LOG_LPR", x);
	x = newintobject(LOG_LOCAL0);
	dictinsert(d, "LOG_LOCAL0", x);
	x = newintobject(LOG_LOCAL1);
	dictinsert(d, "LOG_LOCAL1", x);
	x = newintobject(LOG_LOCAL2);
	dictinsert(d, "LOG_LOCAL2", x);
	x = newintobject(LOG_LOCAL3);
	dictinsert(d, "LOG_LOCAL3", x);
	x = newintobject(LOG_LOCAL4);
	dictinsert(d, "LOG_LOCAL4", x);
	x = newintobject(LOG_LOCAL5);
	dictinsert(d, "LOG_LOCAL5", x);
	x = newintobject(LOG_LOCAL6);
	dictinsert(d, "LOG_LOCAL6", x);
	x = newintobject(LOG_LOCAL7);
	dictinsert(d, "LOG_LOCAL7", x);

	/* Check for errors */
	if (err_occurred())
		fatal("can't initialize module syslog");
}