andersk Git - moira.git/blame_incremental

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Commit	Line	Data
	1	/*
	2	* $Source$
	3	* $Author$
	4	* $Header$
	5	*
	6	* Copyright (C) 1987, 1990 by the Massachusetts Institute of Technology
	7	* For copying and distribution information, please see the file
	8	* <mit-copyright.h>.
	9	*
	10	* This routine is part of the client library. It handles
	11	* creating a connection to the mr server.
	12	*/
	13
	14	#ifndef lint
	15	static char *rcsid_sms_connect_c = "$Header$";
	16	#endif lint
	17
	18	#include <mit-copyright.h>
	19	#include "mr_private.h"
	20	#include <moira_site.h>
	21	#include <string.h>
	22
	23	static char *mr_server_host = 0;
	24
	25	/*
	26	* Open a connection to the mr server. Looks for the server name
	27	* 1) passed as an argument, 2) in environment variable, 3) by hesiod
	28	* 4) compiled in default (from sms_app.h).
	29	*/
	30
	31	int mr_connect(server)
	32	char *server;
	33	{
	34	extern int errno;
	35	char p, *pp, sbuf[256];
	36	extern char getenv(), *hes_resolve();
	37
	38	if (!mr_inited) mr_init();
	39	if (_mr_conn) return MR_ALREADY_CONNECTED;
	40
	41	if (!server \|\| (strlen(server) == 0)) {
	42	server = getenv("MOIRASERVER");
	43	}
	44
	45	#ifdef HESIOD
	46	if (!server \|\| (strlen(server) == 0)) {
	47	pp = hes_resolve("moira", "sloc");
	48	if (pp) server = *pp;
	49	}
	50	#endif HESIOD
	51
	52	if (!server \|\| (strlen(server) == 0)) {
	53	server = MOIRA_SERVER;
	54	}
	55
	56	if (!strchr(server, ':')) {
	57	p = strchr(MOIRA_SERVER, ':');
	58	p++;
	59	sprintf(sbuf, "%s:%s", server, p);
	60	server = sbuf;
	61	}
	62
	63	errno = 0;
	64	_mr_conn = start_server_connection(server, "");
	65	if (_mr_conn == NULL)
	66	return errno;
	67	if (connection_status(_mr_conn) == CON_STOPPED) {
	68	register status = connection_errno(_mr_conn);
	69	if (!status) status = MR_CANT_CONNECT;
	70	mr_disconnect();
	71	return status;
	72	}
	73
	74	/*
	75	* stash hostname for later use
	76	*/
	77
	78	mr_server_host = strsave(server);
	79	if (p = strchr(mr_server_host, ':'))
	80	*p = 0;
	81	mr_server_host = canonicalize_hostname(mr_server_host);
	82	return 0;
	83	}
	84
	85	int mr_disconnect()
	86	{
	87	CHECK_CONNECTED;
	88	_mr_conn = sever_connection(_mr_conn);
	89	free(mr_server_host);
	90	mr_server_host = 0;
	91	return 0;
	92	}
	93
	94	int mr_host(host, size)
	95	char *host;
	96	int size;
	97	{
	98	CHECK_CONNECTED;
	99
	100	/* If we are connected, mr_server_host points to a valid string. */
	101	strncpy(host, mr_server_host, size);
	102	return(0);
	103	}
	104
	105	int mr_noop()
	106	{
	107	int status;
	108	mr_params param_st;
	109	struct mr_params *params = NULL;
	110	struct mr_params *reply = NULL;
	111
	112	CHECK_CONNECTED;
	113	params = &param_st;
	114	params->mr_version_no = sending_version_no;
	115	params->mr_procno = MR_NOOP;
	116	params->mr_argc = 0;
	117	params->mr_argl = NULL;
	118	params->mr_argv = NULL;
	119
	120	if ((status = mr_do_call(params, &reply)) == 0)
	121	status = reply->mr_status;
	122
	123	mr_destroy_reply(reply);
	124
	125	return status;
	126	}