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/* ryinitiator.c - remote association initiator */

#ifndef	lint
static char *rcsid = "$Header: /f/osi/others/idist/RCS/ryinitiator.c,v 6.0 89/03/18 23:36:59 mrose Rel $";
#endif

/* 
 * $Header: /f/osi/others/idist/RCS/ryinitiator.c,v 6.0 89/03/18 23:36:59 mrose Rel $
 *
 * Severely hacked to give embedded functionality for client.
 *
 * Julian Onions <jpo@cs.nott.ac.uk>
 * Nottingham University Computer Science
 * 
 * $Log:	ryinitiator.c,v $
 * Revision 6.0  89/03/18  23:36:59  mrose
 * Release 5.0
 * 
 */

#include <stdio.h>
#include <varargs.h>
#include "Idist-ops.h"
#include "Idist-types.h"
#include "defs.h"

/* \f

   DATA */

void	adios (), advise (), ros_adios (), ros_advise (),
	acs_advise (), acs_adios ();

char *getstring ();

static char *myservice = "isode idist";

static char *mycontext = "isode idist";
static char *mypci = "isode idist pci";


extern char *isodeversion;

static int ryconnect ();

/* \f

   INITIATOR */

makeconn (thehost)
char	*thehost;
{
	int	result;
	PE	data;
	struct type_Idist_Initiate *initial;
	char	*cp;
	char	buf[BUFSIZ];
	char	ruser[128], *rhost;
	static char lasthost[BUFSIZ];

	if (lasthost[0] != 0) {
		if (strcmp (thehost, lasthost) == 0)
			return 1;
		closeconn ();
	}

	(void) strcpy (lasthost, thehost);

	if ((initial = (struct type_Idist_Initiate *)
	     malloc (sizeof *initial)) == NULL)
		adios ("memory", "out of");

	initial -> version = VERSION;

	if (cp = index(thehost, '@')) {
		rhost = cp + 1;
		(void) strncpy (ruser, thehost, cp - thehost);
		ruser[cp - thehost] = 0;
	}
	else {
		(void) strcpy (ruser, user);
		rhost = thehost;
	}
	if (!qflag)
		printf ("updating host %s\n", rhost);
	(void) sprintf (buf, "user (%s:%s): ", rhost, ruser);
	cp = getstring (buf);
	if (cp == NULL)
		cp = ruser;
	initial -> user = str2qb (cp, strlen (cp), 1);

	(void) sprintf (buf, "password (%s:%s): ", rhost, cp);
	cp = getpassword (buf);

	initial -> passwd = str2qb (cp, strlen(cp), 1);
	bzero (cp, strlen (cp));	/* in case of cores */

	if (encode_Idist_Initiate (&data, 1, 0, NULLCP, initial) == NOTOK) {
		advise (NULLCP, "Error encoding data");
		return 0;
	}
	data -> pe_context = 3;	/* hack */

	result = ryconnect (rhost, data, myservice, mycontext, mypci);

	free_Idist_Initiate (initial);

	return result == OK ? 1 : 0;
}


static	int	ry_sd = NOTOK;

static int ryconnect (thehost, data, theservice, thecontext, thepci)
char   *thehost,
       *theservice,
       *thecontext,
       *thepci;
PE	data;
{
    struct SSAPref sfs;
    register struct SSAPref *sf;
    register struct PSAPaddr *pa;
    struct AcSAPconnect accs;
    register struct AcSAPconnect   *acc = &accs;
    struct AcSAPindication  acis;
    register struct AcSAPindication *aci = &acis;
    register struct AcSAPabort *aca = &aci -> aci_abort;
    AEI	    aei;
    OID	    ctx,
	    pci;
    struct PSAPctxlist pcs;
    register struct PSAPctxlist *pc = &pcs;
    struct RoSAPindication rois;
    register struct RoSAPindication *roi = &rois;
    register struct RoSAPpreject *rop = &roi -> roi_preject;

    if ((aei = str2aei (thehost, theservice)) == NULLAEI)
	adios (NULLCP, "%s-%s: unknown application-entity",
		thehost, theservice);
    if ((pa = aei2addr (aei)) == NULLPA)
	adios (NULLCP, "address translation failed");

    if ((ctx = ode2oid (thecontext)) == NULLOID)
	adios (NULLCP, "%s: unknown object descriptor", thecontext);
    if ((ctx = oid_cpy (ctx)) == NULLOID)
	adios (NULLCP, "out of memory");
    if ((pci = ode2oid (thepci)) == NULLOID)
	adios (NULLCP, "%s: unknown object descriptor", thepci);
    if ((pci = oid_cpy (pci)) == NULLOID)
	adios (NULLCP, "out of memory");
    pc -> pc_nctx = 1;
    pc -> pc_ctx[0].pc_id = 1;
    pc -> pc_ctx[0].pc_asn = pci;
    pc -> pc_ctx[0].pc_atn = NULLOID;

    if ((sf = addr2ref (PLocalHostName ())) == NULL) {
	sf = &sfs;
	(void) bzero ((char *) sf, sizeof *sf);
    }

    if (AcAssocRequest (ctx, NULLAEI, aei, NULLPA, pa, pc, NULLOID,
		0, ROS_MYREQUIRE, SERIAL_NONE, 0, sf, &data, 1, NULLQOS,
		acc, aci)
	    == NOTOK)
	acs_adios (aca, "A-ASSOCIATE.REQUEST");

    if (acc -> acc_result != ACS_ACCEPT) {
	int slen;
	char *str;

	if (acc -> acc_ninfo > 0 && (str = prim2str(acc->acc_info[0], &slen)))
	    adios (NULLCP, "association rejected: [%s] %*.*s",
		   AcErrString (acc -> acc_result),
		   slen, slen, str);
	else
	    adios (NULLCP, "association rejected: [%s]",
		   AcErrString (acc -> acc_result));
    }

    ry_sd = acc -> acc_sd;
    ACCFREE (acc);

    if (RoSetService (ry_sd, RoPService, roi) == NOTOK)
	ros_adios (rop, "set RO/PS fails");
    return OK;
}

closeconn ()
{
    struct AcSAPrelease acrs;
    register struct AcSAPrelease   *acr = &acrs;
    struct AcSAPindication  acis;
    register struct AcSAPindication *aci = &acis;
    register struct AcSAPabort *aca = &aci -> aci_abort;

    if (ry_sd == NOTOK)
	    return;

    if (AcRelRequest (ry_sd, ACF_NORMAL, NULLPEP, 0, acr, aci) == NOTOK)
	acs_adios (aca, "A-RELEASE.REQUEST");

    if (!acr -> acr_affirmative) {
	(void) AcUAbortRequest (ry_sd, NULLPEP, 0, aci);
	adios (NULLCP, "release rejected by peer: %d", acr -> acr_reason);
    }

    ACRFREE (acr);
}

/* \f

 */

invoke (op, arg, ffx, rfx, efx)
int	op;
caddr_t	arg;
IFP	ffx, rfx, efx;
{
    int	    result;
    struct RoSAPindication  rois;
    register struct RoSAPindication *roi = &rois;
    register struct RoSAPpreject   *rop = &roi -> roi_preject;
    extern int result_value;

    switch (result = RyStub (ry_sd, table_Idist_Operations, op,
			     RyGenID (ry_sd), NULLIP, arg, rfx, efx,
			     ROS_SYNC, roi)) {
	case NOTOK:		/* failure */
	    if (ROS_FATAL (rop -> rop_reason))
		ros_adios (rop, "STUB");
	    ros_advise (rop, "STUB");
	    break;

	case OK:		/* got a result/error response */
	    break;

	case DONE:		/* got RO-END? */
	    adios (NULLCP, "got RO-END.INDICATION");
	    /* NOTREACHED */

	default:
	    adios (NULLCP, "unknown return from RyStub=%d", result);
	    /* NOTREACHED */
    }

    if (ffx && arg)
	    (*ffx) (arg);
    return result_value;
}

/* \f

 */

/* \f

 */

void	ros_adios (rop, event)
register struct RoSAPpreject *rop;
char   *event;
{
    ros_advise (rop, event);

    cleanup ();

    _exit (1);
}


void	ros_advise (rop, event)
register struct RoSAPpreject *rop;
char   *event;
{
    char    buffer[BUFSIZ];

    if (rop -> rop_cc > 0)
	(void) sprintf (buffer, "[%s] %*.*s", RoErrString (rop -> rop_reason),
		rop -> rop_cc, rop -> rop_cc, rop -> rop_data);
    else
	(void) sprintf (buffer, "[%s]", RoErrString (rop -> rop_reason));

    advise (NULLCP, "%s: %s", event, buffer);
}

/* \f

 */

void	acs_adios (aca, event)
register struct AcSAPabort *aca;
char   *event;
{
    acs_advise (aca, event);

    cleanup ();
    _exit (1);
}


void	acs_advise (aca, event)
register struct AcSAPabort *aca;
char   *event;
{
    char    buffer[BUFSIZ];

    if (aca -> aca_cc > 0)
	(void) sprintf (buffer, "[%s] %*.*s",
		AcErrString (aca -> aca_reason),
		aca -> aca_cc, aca -> aca_cc, aca -> aca_data);
    else
	(void) sprintf (buffer, "[%s]", AcErrString (aca -> aca_reason));

	advise (NULLCP, "%s: %s (source %d)", event, buffer,
		aca -> aca_source);
}

/* \f

 */

#ifndef	lint
void	_advise ();


void	adios (va_alist)
va_dcl
{
    va_list ap;

    va_start (ap);

    _advise (ap);

    cleanup ();

    va_end (ap);

    _exit (1);
}
#else
/* VARARGS */

void	adios (what, fmt)
char   *what,
       *fmt;
{
    adios (what, fmt);
}
#endif


#ifndef	lint
void	advise (va_alist)
va_dcl
{
    va_list ap;

    va_start (ap);

    _advise (ap);

    va_end (ap);
}


static void  _advise (ap)
va_list	ap;
{
    char    buffer[BUFSIZ];

    asprintf (buffer, ap);

    (void) fflush (stdout);

    fprintf (stderr, "%s: ", myname);
    (void) fputs (buffer, stderr);
    (void) fputc ('\n', stderr);

    (void) fflush (stderr);
}
#else
/* VARARGS */

void	advise (what, fmt)
char   *what,
       *fmt;
{
    advise (what, fmt);
}
#endif


#ifndef	lint
void	ryr_advise (va_alist)
va_dcl
{
    va_list ap;

    va_start (ap);

    _advise (ap);

    va_end (ap);
}
#else
/* VARARGS */

void	ryr_advise (what, fmt)
char   *what,
       *fmt;
{
    ryr_advise (what, fmt);
}
#endif

char	*getstring (prompt)
char	*prompt;
{
	static char buffer[BUFSIZ];
	char	*cp;

	fputs (prompt, stdout);
	(void) fflush (stdout);

	if (fgets (buffer, sizeof buffer, stdin) == NULL)
		return NULLCP;

	if (cp = index (buffer, '\n'))
		*cp = '\0';
	if (buffer[0] == '\0')
		return NULLCP;
	return buffer;
}
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