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
	17
	18	#include <mit-copyright.h>
	19	#include "mr_private.h"
	20	#include <moira_site.h>
	21	#include <string.h>
	22	#include <stdlib.h>
	23	#include <hesiod.h>
	24
	25	static char *mr_server_host = 0;
	26
	27	/*
	28	* Open a connection to the mr server. Looks for the server name
	29	* 1) passed as an argument, 2) in environment variable, 3) by hesiod
	30	* 4) compiled in default (from sms_app.h).
	31	*/
	32
	33	int mr_connect(server)
	34	char *server;
	35	{
	36	extern int errno;
	37	char p, *pp, sbuf[256];
	38
	39	if (!mr_inited) mr_init();
	40	if (_mr_conn) return MR_ALREADY_CONNECTED;
	41
	42	if (!server \|\| (strlen(server) == 0)) {
	43	server = getenv("MOIRASERVER");
	44	}
	45
	46	#ifdef HESIOD
	47	if (!server \|\| (strlen(server) == 0)) {
	48	pp = hes_resolve("moira", "sloc");
	49	if (pp) server = *pp;
	50	}
	51	#endif
	52
	53	if (!server \|\| (strlen(server) == 0)) {
	54	server = MOIRA_SERVER;
	55	}
	56
	57	if (!strchr(server, ':')) {
	58	p = strchr(MOIRA_SERVER, ':');
	59	p++;
	60	sprintf(sbuf, "%s:%s", server, p);
	61	server = sbuf;
	62	}
	63
	64	errno = 0;
	65	_mr_conn = start_server_connection(server, "");
	66	if (_mr_conn == NULL)
	67	return errno;
	68	if (connection_status(_mr_conn) == CON_STOPPED) {
	69	register status = connection_errno(_mr_conn);
	70	if (!status) status = MR_CANT_CONNECT;
	71	mr_disconnect();
	72	return status;
	73	}
	74
	75	/*
	76	* stash hostname for later use
	77	*/
	78
	79	mr_server_host = strsave(server);
	80	if (p = strchr(mr_server_host, ':'))
	81	*p = 0;
	82	mr_server_host = canonicalize_hostname(mr_server_host);
	83	return 0;
	84	}
	85
	86	int mr_disconnect()
	87	{
	88	CHECK_CONNECTED;
	89	_mr_conn = sever_connection(_mr_conn);
	90	free(mr_server_host);
	91	mr_server_host = 0;
	92	return 0;
	93	}
	94
	95	int mr_host(host, size)
	96	char *host;
	97	int size;
	98	{
	99	CHECK_CONNECTED;
	100
	101	/* If we are connected, mr_server_host points to a valid string. */
	102	strncpy(host, mr_server_host, size);
	103	return(0);
	104	}
	105
	106	int mr_noop()
	107	{
	108	int status;
	109	mr_params param_st;
	110	struct mr_params *params = NULL;
	111	struct mr_params *reply = NULL;
	112
	113	CHECK_CONNECTED;
	114	params = &param_st;
	115	params->mr_version_no = sending_version_no;
	116	params->mr_procno = MR_NOOP;
	117	params->mr_argc = 0;
	118	params->mr_argl = NULL;
	119	params->mr_argv = NULL;
	120
	121	if ((status = mr_do_call(params, &reply)) == 0)
	122	status = reply->mr_status;
	123
	124	mr_destroy_reply(reply);
	125
	126	return status;
	127	}