agent.c

asterisk 是一个很有知名度开源软件

			string_ret[sizeof(string_ret) - 1] = '\0';
			*var_len = strlen(string_ret);
			ret = (u_char *)string_ret;
		}
		break;
	case ASTCHANCIDANI:
		if (chan->cid.cid_ani) {
			strncpy(string_ret, chan->cid.cid_ani, sizeof(string_ret));
			string_ret[sizeof(string_ret) - 1] = '\0';
			*var_len = strlen(string_ret);
			ret = (u_char *)string_ret;
		}
		break;
	case ASTCHANCIDRDNIS:
		if (chan->cid.cid_rdnis) {
			strncpy(string_ret, chan->cid.cid_rdnis, sizeof(string_ret));
			string_ret[sizeof(string_ret) - 1] = '\0';
			*var_len = strlen(string_ret);
			ret = (u_char *)string_ret;
		}
		break;
	case ASTCHANCIDPRES:
		long_ret = chan->cid.cid_pres;
		ret = (u_char *)&long_ret;
		break;
	case ASTCHANCIDANI2:
		long_ret = chan->cid.cid_ani2;
		ret = (u_char *)&long_ret;
		break;
	case ASTCHANCIDTON:
		long_ret = chan->cid.cid_ton;
		ret = (u_char *)&long_ret;
		break;
	case ASTCHANCIDTNS:
		long_ret = chan->cid.cid_tns;
		ret = (u_char *)&long_ret;
		break;
	case ASTCHANAMAFLAGS:
		long_ret = chan->amaflags;
		ret = (u_char *)&long_ret;
		break;
	case ASTCHANADSI:
		long_ret = chan->adsicpe;
		ret = (u_char *)&long_ret;
		break;
	case ASTCHANTONEZONE:
		if (chan->zone) {
			strncpy(string_ret, chan->zone->country, sizeof(string_ret));
			string_ret[sizeof(string_ret) - 1] = '\0';
			*var_len = strlen(string_ret);
			ret = (u_char *)string_ret;
		}
		break;
	case ASTCHANHANGUPCAUSE:
		long_ret = chan->hangupcause;
		ret = (u_char *)&long_ret;
		break;
	case ASTCHANVARIABLES:
		if (pbx_builtin_serialize_variables(chan, &out)) {
			*var_len = strlen(out->str);
			ret = (u_char *)out->str;
		}
		break;
	case ASTCHANFLAGS:
		bits_ret[0] = 0;
		for (bit = 0; bit < 8; bit++)
			bits_ret[0] |= ((chan->flags & (1 << bit)) >> bit) << (7 - bit);
		bits_ret[1] = 0;
		for (bit = 0; bit < 8; bit++)
			bits_ret[1] |= (((chan->flags >> 8) & (1 << bit)) >> bit) << (7 - bit);
		*var_len = 2;
		ret = bits_ret;
		break;
	case ASTCHANTRANSFERCAP:
		long_ret = chan->transfercapability;
		ret = (u_char *)&long_ret;
	default:
		break;
	}
	ast_channel_unlock(chan);
	return ret;
}

static u_char *ast_var_channel_types(struct variable *vp, oid *name, size_t *length,
								   int exact, size_t *var_len, WriteMethod **write_method)
{
	static unsigned long long_ret;
	struct ast_variable *channel_types, *next;

	if (header_generic(vp, name, length, exact, var_len, write_method))
		return NULL;

	if (vp->magic != ASTCHANTYPECOUNT)
		return NULL;

	for (long_ret = 0, channel_types = next = ast_channeltype_list(); next; next = next->next)
		long_ret++;
	ast_variables_destroy(channel_types);

	return (u_char *)&long_ret;
}

static u_char *ast_var_channel_types_table(struct variable *vp, oid *name, size_t *length,
										int exact, size_t *var_len, WriteMethod **write_method)
{
	const struct ast_channel_tech *tech = NULL;
	struct ast_variable *channel_types, *next;
	static unsigned long long_ret;
	struct ast_channel *chan;
	u_long i;

	if (header_simple_table(vp, name, length, exact, var_len, write_method, -1))
		return NULL;

	channel_types = ast_channeltype_list();
	for (i = 1, next = channel_types; next && i != name[*length - 1]; next = next->next, i++)
		;
	if (next != NULL)
		tech = ast_get_channel_tech(next->name);
	ast_variables_destroy(channel_types);
	if (next == NULL || tech == NULL)
		return NULL;
	
	switch (vp->magic) {
	case ASTCHANTYPEINDEX:
		long_ret = name[*length - 1];
		return (u_char *)&long_ret;
	case ASTCHANTYPENAME:
		*var_len = strlen(tech->type);
		return (u_char *)tech->type;
	case ASTCHANTYPEDESC:
		*var_len = strlen(tech->description);
		return (u_char *)tech->description;
	case ASTCHANTYPEDEVSTATE:
		long_ret = tech->devicestate ? 1 : 2;
		return (u_char *)&long_ret;
	case ASTCHANTYPEINDICATIONS:
		long_ret = tech->indicate ? 1 : 2;
		return (u_char *)&long_ret;
	case ASTCHANTYPETRANSFER:
		long_ret = tech->transfer ? 1 : 2;
		return (u_char *)&long_ret;
	case ASTCHANTYPECHANNELS:
		long_ret = 0;
		for (chan = ast_channel_walk_locked(NULL); chan; chan = ast_channel_walk_locked(chan)) {
			if (chan->tech == tech)
				long_ret++;
			ast_channel_unlock(chan);
		}
		return (u_char *)&long_ret;
	default:
		break;
	}
	return NULL;
}

static u_char *ast_var_channel_bridge(struct variable *vp, oid *name, size_t *length,
	int exact, size_t *var_len, WriteMethod **write_method)
{
	static unsigned long long_ret;
	struct ast_channel *chan = NULL;

	long_ret = 0;
	if (header_generic(vp, name, length, exact, var_len, write_method))
		return NULL;

	while ((chan = ast_channel_walk_locked(chan))) {
		if (ast_bridged_channel(chan))
			long_ret++;
		ast_channel_unlock(chan);
	}

	*var_len = sizeof(long_ret);

	return (vp->magic == ASTCHANBRIDGECOUNT) ? (u_char *) &long_ret : NULL;
}

static u_char *ast_var_Config(struct variable *vp, oid *name, size_t *length,
							 int exact, size_t *var_len, WriteMethod **write_method)
{
	static unsigned long long_ret;
	struct timeval tval;

	if (header_generic(vp, name, length, exact, var_len, write_method))
		return NULL;

	switch (vp->magic) {
	case ASTCONFUPTIME:
		gettimeofday(&tval, NULL);
		long_ret = difftime(tval.tv_sec, ast_startuptime.tv_sec) * 100 + tval.tv_usec / 10000 - ast_startuptime.tv_usec / 10000;
		return (u_char *)&long_ret;
	case ASTCONFRELOADTIME:
		gettimeofday(&tval, NULL);
		if (ast_lastreloadtime.tv_sec)
			long_ret = difftime(tval.tv_sec, ast_lastreloadtime.tv_sec) * 100 + tval.tv_usec / 10000 - ast_lastreloadtime.tv_usec / 10000;
		else
			long_ret = difftime(tval.tv_sec, ast_startuptime.tv_sec) * 100 + tval.tv_usec / 10000 - ast_startuptime.tv_usec / 10000;
		return (u_char *)&long_ret;
	case ASTCONFPID:
		long_ret = getpid();
		return (u_char *)&long_ret;
	case ASTCONFSOCKET:
		*var_len = strlen(ast_config_AST_SOCKET);
		return (u_char *)ast_config_AST_SOCKET;
	case ASTCONFACTIVECALLS:
		long_ret = ast_active_calls();
		return (u_char *)&long_ret;
	case ASTCONFPROCESSEDCALLS:
		long_ret = ast_processed_calls();
		return (u_char *)&long_ret;
	default:
		break;
	}
	return NULL;
}

static u_char *ast_var_indications(struct variable *vp, oid *name, size_t *length,
								  int exact, size_t *var_len, WriteMethod **write_method)
{
	static unsigned long long_ret;
	struct tone_zone *tz = NULL;

	if (header_generic(vp, name, length, exact, var_len, write_method))
		return NULL;

	switch (vp->magic) {
	case ASTINDCOUNT:
		long_ret = 0;
		while ( (tz = ast_walk_indications(tz)) )
			long_ret++;

		return (u_char *)&long_ret;
	case ASTINDCURRENT:
		tz = ast_get_indication_zone(NULL);
		if (tz) {
			*var_len = strlen(tz->country);
			return (u_char *)tz->country;
		}
		*var_len = 0;
		return NULL;
	default:
		break;
	}
	return NULL;
}

static u_char *ast_var_indications_table(struct variable *vp, oid *name, size_t *length,
									   int exact, size_t *var_len, WriteMethod **write_method)
{
	static unsigned long long_ret;
	struct tone_zone *tz = NULL;
	int i;

	if (header_simple_table(vp, name, length, exact, var_len, write_method, -1))
		return NULL;

	i = name[*length - 1] - 1;
	while ( (tz = ast_walk_indications(tz)) && i )
	i--;
	if (tz == NULL)
		return NULL;

	switch (vp->magic) {
	case ASTINDINDEX:
		long_ret = name[*length - 1];
		return (u_char *)&long_ret;
	case ASTINDCOUNTRY:
		*var_len = strlen(tz->country);
		return (u_char *)tz->country;
	case ASTINDALIAS:
		if (tz->alias) {
			*var_len = strlen(tz->alias);
			return (u_char *)tz->alias;
		}
		return NULL;
	case ASTINDDESCRIPTION:
		*var_len = strlen(tz->description);
		return (u_char *)tz->description;
	default:
		break;
	}
	return NULL;
}

static int countmodule(const char *mod, const char *desc, int use, const char *like)
{
	return 1;
}

static u_char *ast_var_Modules(struct variable *vp, oid *name, size_t *length,
							  int exact, size_t *var_len, WriteMethod **write_method)
{
	static unsigned long long_ret;

	if (header_generic(vp, name, length, exact, var_len, write_method))
		return NULL;

	if (vp->magic != ASTMODCOUNT)
		return NULL;

	long_ret = ast_update_module_list(countmodule, NULL);

	return (u_char *)&long_ret;
}

static u_char *ast_var_Version(struct variable *vp, oid *name, size_t *length,
							  int exact, size_t *var_len, WriteMethod **write_method)
{
	static unsigned long long_ret;

	if (header_generic(vp, name, length, exact, var_len, write_method))
		return NULL;

	switch (vp->magic) {
	case ASTVERSTRING:
	{
		const char *version = ast_get_version();
		*var_len = strlen(version);
		return (u_char *)version;
	}
	case ASTVERTAG:
		sscanf(ast_get_version_num(), "%lu", &long_ret);
		return (u_char *)&long_ret;
	default:
		break;
	}
	return NULL;
}

static int term_asterisk_mib(int majorID, int minorID, void *serverarg, void *clientarg)
{
	unregister_sysORTable(asterisk_oid, OID_LENGTH(asterisk_oid));
	return 0;
}

static void init_asterisk_mib(void)
{
	static struct variable4 asterisk_vars[] = {
		{ASTVERSTRING,           ASN_OCTET_STR, RONLY, ast_var_Version,             2, {ASTVERSION, ASTVERSTRING}},
		{ASTVERTAG,              ASN_UNSIGNED,  RONLY, ast_var_Version,             2, {ASTVERSION, ASTVERTAG}},
		{ASTCONFUPTIME,          ASN_TIMETICKS, RONLY, ast_var_Config,              2, {ASTCONFIGURATION, ASTCONFUPTIME}},
		{ASTCONFRELOADTIME,      ASN_TIMETICKS, RONLY, ast_var_Config,              2, {ASTCONFIGURATION, ASTCONFRELOADTIME}},
		{ASTCONFPID,             ASN_INTEGER,   RONLY, ast_var_Config,              2, {ASTCONFIGURATION, ASTCONFPID}},
		{ASTCONFSOCKET,          ASN_OCTET_STR, RONLY, ast_var_Config,              2, {ASTCONFIGURATION, ASTCONFSOCKET}},
		{ASTCONFACTIVECALLS,     ASN_GAUGE,   	RONLY, ast_var_Config,              2, {ASTCONFIGURATION, ASTCONFACTIVECALLS}},
		{ASTCONFPROCESSEDCALLS,  ASN_COUNTER,   RONLY, ast_var_Config,              2, {ASTCONFIGURATION, ASTCONFPROCESSEDCALLS}},
		{ASTMODCOUNT,            ASN_INTEGER,   RONLY, ast_var_Modules ,            2, {ASTMODULES, ASTMODCOUNT}},
		{ASTINDCOUNT,            ASN_INTEGER,   RONLY, ast_var_indications,         2, {ASTINDICATIONS, ASTINDCOUNT}},
		{ASTINDCURRENT,          ASN_OCTET_STR, RONLY, ast_var_indications,         2, {ASTINDICATIONS, ASTINDCURRENT}},
		{ASTINDINDEX,            ASN_INTEGER,   RONLY, ast_var_indications_table,   4, {ASTINDICATIONS, ASTINDTABLE, 1, ASTINDINDEX}},
		{ASTINDCOUNTRY,          ASN_OCTET_STR, RONLY, ast_var_indications_table,   4, {ASTINDICATIONS, ASTINDTABLE, 1, ASTINDCOUNTRY}},
		{ASTINDALIAS,            ASN_OCTET_STR, RONLY, ast_var_indications_table,   4, {ASTINDICATIONS, ASTINDTABLE, 1, ASTINDALIAS}},
		{ASTINDDESCRIPTION,      ASN_OCTET_STR, RONLY, ast_var_indications_table,   4, {ASTINDICATIONS, ASTINDTABLE, 1, ASTINDDESCRIPTION}},
		{ASTCHANCOUNT,           ASN_GAUGE,     RONLY, ast_var_channels,            2, {ASTCHANNELS, ASTCHANCOUNT}},
		{ASTCHANINDEX,           ASN_INTEGER,   RONLY, ast_var_channels_table,      4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANINDEX}},
		{ASTCHANNAME,            ASN_OCTET_STR, RONLY, ast_var_channels_table,      4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANNAME}},
		{ASTCHANLANGUAGE,        ASN_OCTET_STR, RONLY, ast_var_channels_table,      4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANLANGUAGE}},
		{ASTCHANTYPE,            ASN_OCTET_STR, RONLY, ast_var_channels_table,      4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANTYPE}},
		{ASTCHANMUSICCLASS,      ASN_OCTET_STR, RONLY, ast_var_channels_table,      4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANMUSICCLASS}},
		{ASTCHANBRIDGE,          ASN_OCTET_STR, RONLY, ast_var_channels_table,      4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANBRIDGE}},
		{ASTCHANMASQ,            ASN_OCTET_STR, RONLY, ast_var_channels_table,      4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANMASQ}},
		{ASTCHANMASQR,           ASN_OCTET_STR, RONLY, ast_var_channels_table,      4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANMASQR}},
		{ASTCHANWHENHANGUP,      ASN_TIMETICKS, RONLY, ast_var_channels_table,      4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANWHENHANGUP}},
		{ASTCHANAPP,             ASN_OCTET_STR, RONLY, ast_var_channels_table,      4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANAPP}},
		{ASTCHANDATA,            ASN_OCTET_STR, RONLY, ast_var_channels_table,      4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANDATA}},
		{ASTCHANCONTEXT,         ASN_OCTET_STR, RONLY, ast_var_channels_table,      4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANCONTEXT}},
		{ASTCHANMACROCONTEXT,    ASN_OCTET_STR, RONLY, ast_var_channels_table,      4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANMACROCONTEXT}},
		{ASTCHANMACROEXTEN,      ASN_OCTET_STR, RONLY, ast_var_channels_table,      4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANMACROEXTEN}},
		{ASTCHANMACROPRI,        ASN_INTEGER,   RONLY, ast_var_channels_table,      4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANMACROPRI}},
		{ASTCHANEXTEN,           ASN_OCTET_STR, RONLY, ast_var_channels_table,      4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANEXTEN}},
		{ASTCHANPRI,             ASN_INTEGER,   RONLY, ast_var_channels_table,      4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANPRI}},
		{ASTCHANACCOUNTCODE,     ASN_OCTET_STR, RONLY, ast_var_channels_table,      4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANACCOUNTCODE}},
		{ASTCHANFORWARDTO,       ASN_OCTET_STR, RONLY, ast_var_channels_table,      4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANFORWARDTO}},
		{ASTCHANUNIQUEID,        ASN_OCTET_STR, RONLY, ast_var_channels_table,      4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANUNIQUEID}},
		{ASTCHANCALLGROUP,       ASN_UNSIGNED,  RONLY, ast_var_channels_table,      4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANCALLGROUP}},
		{ASTCHANPICKUPGROUP,     ASN_UNSIGNED,  RONLY, ast_var_channels_table,      4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANPICKUPGROUP}},
		{ASTCHANSTATE,           ASN_INTEGER,   RONLY, ast_var_channels_table,      4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANSTATE}},
		{ASTCHANMUTED,           ASN_INTEGER,   RONLY, ast_var_channels_table,      4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANMUTED}},
		{ASTCHANRINGS,           ASN_INTEGER,   RONLY, ast_var_channels_table,      4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANRINGS}},
		{ASTCHANCIDDNID,         ASN_OCTET_STR, RONLY, ast_var_channels_table,      4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANCIDDNID}},
		{ASTCHANCIDNUM,          ASN_OCTET_STR, RONLY, ast_var_channels_table,      4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANCIDNUM}},
		{ASTCHANCIDNAME,         ASN_OCTET_STR, RONLY, ast_var_channels_table,      4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANCIDNAME}},
		{ASTCHANCIDANI,          ASN_OCTET_STR, RONLY, ast_var_channels_table,      4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANCIDANI}},
		{ASTCHANCIDRDNIS,        ASN_OCTET_STR, RONLY, ast_var_channels_table,      4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANCIDRDNIS}},
		{ASTCHANCIDPRES,         ASN_OCTET_STR, RONLY, ast_var_channels_table,      4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANCIDPRES}},
		{ASTCHANCIDANI2,         ASN_INTEGER,   RONLY, ast_var_channels_table,      4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANCIDANI2}},
		{ASTCHANCIDTON,          ASN_INTEGER,   RONLY, ast_var_channels_table,      4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANCIDTON}},
		{ASTCHANCIDTNS,          ASN_INTEGER,   RONLY, ast_var_channels_table,      4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANCIDTNS}},
		{ASTCHANAMAFLAGS,        ASN_INTEGER,   RONLY, ast_var_channels_table,      4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANAMAFLAGS}},
		{ASTCHANADSI,            ASN_INTEGER,   RONLY, ast_var_channels_table,      4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANADSI}},
		{ASTCHANTONEZONE,        ASN_OCTET_STR, RONLY, ast_var_channels_table,      4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANTONEZONE}},
		{ASTCHANHANGUPCAUSE,     ASN_INTEGER,   RONLY, ast_var_channels_table,      4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANHANGUPCAUSE}},
		{ASTCHANVARIABLES,       ASN_OCTET_STR, RONLY, ast_var_channels_table,      4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANVARIABLES}},
		{ASTCHANFLAGS,           ASN_OCTET_STR, RONLY, ast_var_channels_table,      4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANFLAGS}},
		{ASTCHANTRANSFERCAP,     ASN_INTEGER,   RONLY, ast_var_channels_table,      4, {ASTCHANNELS, ASTCHANTABLE, 1, ASTCHANTRANSFERCAP}},
		{ASTCHANTYPECOUNT,       ASN_INTEGER,   RONLY, ast_var_channel_types,       2, {ASTCHANNELS, ASTCHANTYPECOUNT}},
		{ASTCHANTYPEINDEX,       ASN_INTEGER,   RONLY, ast_var_channel_types_table, 4, {ASTCHANNELS, ASTCHANTYPETABLE, 1, ASTCHANTYPEINDEX}},
		{ASTCHANTYPENAME,        ASN_OCTET_STR, RONLY, ast_var_channel_types_table, 4, {ASTCHANNELS, ASTCHANTYPETABLE, 1, ASTCHANTYPENAME}},
		{ASTCHANTYPEDESC,        ASN_OCTET_STR, RONLY, ast_var_channel_types_table, 4, {ASTCHANNELS, ASTCHANTYPETABLE, 1, ASTCHANTYPEDESC}},
		{ASTCHANTYPEDEVSTATE,    ASN_INTEGER,   RONLY, ast_var_channel_types_table, 4, {ASTCHANNELS, ASTCHANTYPETABLE, 1, ASTCHANTYPEDEVSTATE}},
		{ASTCHANTYPEINDICATIONS, ASN_INTEGER,   RONLY, ast_var_channel_types_table, 4, {ASTCHANNELS, ASTCHANTYPETABLE, 1, ASTCHANTYPEINDICATIONS}},
		{ASTCHANTYPETRANSFER,    ASN_INTEGER,   RONLY, ast_var_channel_types_table, 4, {ASTCHANNELS, ASTCHANTYPETABLE, 1, ASTCHANTYPETRANSFER}},
		{ASTCHANTYPECHANNELS,    ASN_GAUGE,     RONLY, ast_var_channel_types_table, 4, {ASTCHANNELS, ASTCHANTYPETABLE, 1, ASTCHANTYPECHANNELS}},
		{ASTCHANBRIDGECOUNT,     ASN_GAUGE,     RONLY, ast_var_channel_bridge,      3, {ASTCHANNELS, ASTCHANSCALARS, ASTCHANBRIDGECOUNT}},
	};

	register_sysORTable(asterisk_oid, OID_LENGTH(asterisk_oid),
			"ASTERISK-MIB implementation for Asterisk.");

	REGISTER_MIB("res_snmp", asterisk_vars, variable4, asterisk_oid);

	snmp_register_callback(SNMP_CALLBACK_LIBRARY,
			   SNMP_CALLBACK_SHUTDOWN,
			   term_asterisk_mib, NULL);
}

/*
 * Local Variables:
 * c-basic-offset: 4
 * c-file-offsets: ((case-label . 0))
 * tab-width: 4
 * indent-tabs-mode: t
 * End:
 */