responder.c

ftam等标准协议服务器和客户端的源代码。

/* responder.c -- responder for callback demo */

#ifndef	lint
static char *rcsid = "$Header: /xtel/isode/isode/others/callback/RCS/responder.c,v 9.0 1992/06/16 12:41:50 isode Rel $";
#endif

/* 
 * $Header: /xtel/isode/isode/others/callback/RCS/responder.c,v 9.0 1992/06/16 12:41:50 isode Rel $
 *
 *
 * $Log: responder.c,v $
 * Revision 9.0  1992/06/16  12:41:50  isode
 * Release 8.0
 *
 */

/*
 *				  NOTICE
 *
 *    Acquisition, use, and distribution of this module and related
 *    materials are subject to the restrictions of a license agreement.
 *    Consult the Preface in the User's Manual for the full terms of
 *    this agreement.
 *
 */


#include <stdio.h>
#include "callback.h"

/*  */

/* ARGSUSED */

main (argc, argv, envp)
int	argc;
char  **argv,
      **envp;
{
    struct TSAPaddr tas;
    struct TSAPaddr *ta = &tas;
    register struct SSAPaddr *sz;
    struct SSAPconnect scs;
    register struct SSAPconnect *sc = &scs;
    struct SSAPstart sss;
    register struct SSAPstart *ss = &sss;
    struct SSAPdata sxs;
    register struct SSAPdata   *sx = &sxs;
    struct SSAPrelease  srs;
    register struct SSAPrelease *sr = &srs;
    struct SSAPindication sis;
    register struct SSAPindication *si = &sis;
    register struct SSAPabort *sa = &si -> si_abort;
    struct sblk incoming,
		outgoing;
    SB	    sbi = &incoming,
	    sbo = &outgoing;

    reportailor (argv[0]);

	/* S-CONNECT.INDICATION */
    if (SInit (argc, argv, ss, si) == NOTOK)
	adios (NULLCP, "S-CONNECT.INDICATION: %s", SErrString (sa -> sa_reason));
    advise (LLOG_NOTICE, NULLCP,
	    "S-CONNECT.INDICATION: <%d, %s, %s, %s, %s, %ld, %d>",
	    ss -> ss_sd, sprintref (&ss -> ss_connect),
	    saddr2str (&ss -> ss_calling), saddr2str (&ss -> ss_called),
	    sprintb (ss -> ss_requirements, RMASK), ss -> ss_isn,
	    ss -> ss_ssdusize);

    bzero ((char *) sbi, sizeof *sbi);
    sbi -> sb_sd = ss -> ss_sd;
    sbi -> sb_connect = ss -> ss_connect;	/* struct copy */    
    sbi -> sb_requirements = ss -> ss_requirements & SR_BASUBSET;
    sbi -> sb_settings = ss -> ss_settings;
#define dotoken(requires,shift,bit,type) \
{ \
    if (sbi -> sb_requirements & requires) \
	switch (sbi -> sb_settings & (ST_MASK << shift)) { \
	    case ST_CALL_VALUE << shift: \
		sbi -> sb_settings &= ~(ST_MASK << shift); \
		sbi -> sb_settings |= ST_INIT_VALUE << shift; \
		break; \
 \
	    case ST_INIT_VALUE: \
		break; \
 \
	    case ST_RESP_VALUE: \
		sbi -> sb_owned |= bit; \
		break; \
 \
	    default: \
		adios (NULLCP, "%s token: reserved", type); \
		break; \
	} \
}
    dotokens ();
#undef	dotoken
    sbi -> sb_ssn = sbi -> sb_isn = ss -> ss_isn;

    if ((ta = str2taddr (ss -> ss_data)) == NULLTA)
	adios (NULLCP, "str2taddr failed");

    SSFREE (ss);

    if (SConnResponse (sbi -> sb_sd, &sbi -> sb_connect, NULLSA, SC_ACCEPT,
	    sbi -> sb_requirements, sbi -> sb_settings, sbi -> sb_isn,
	    NULLCP, 0, si) == NOTOK)
	adios (NULLCP, "S-CONNECT.RESPONSE: %s", SErrString (sa -> sa_reason));

	/* we use the transport address passed in via the initial user data,
	   along with our our session selector */
    sz = &ss -> ss_called;
    sz -> sa_addr = *ta;	/* struct copy */

    bzero ((char *) sbo, sizeof *sbo);
    sbo -> sb_requirements = SR_BASUBSET;
    sbo -> sb_settings = 0;
#define dotoken(requires,shift,bit,type) \
{ \
    if (sbo -> sb_requirements & requires) \
	    sbo -> sb_settings |= ST_INIT_VALUE << shift; \
}
    dotokens ();
#undef  dotoken
    sbo -> sb_isn = SERIAL_NONE;

	/* make the callback */
    if (SConnRequest (&sbo -> sb_connect, NULLSA, sz, sbo -> sb_requirements,
	    sbo -> sb_settings, sbo -> sb_isn, NULLCP, 0, NULLQOS, sc, si)
	    == NOTOK)
	adios (NULLCP, "S-CONNECT.REQUEST: %s", SErrString (sa -> sa_reason));
    if (sc -> sc_result != SC_ACCEPT)
	adios (NULLCP, "connection rejected by peer: %s",
		SErrString (sc -> sc_result));
    advise (LLOG_NOTICE, NULLCP,
	    "S-CONNECT.RESPONSE: <%d, %s, %s, %s, %ld, %d>",
	    sc -> sc_sd, sprintref (&sc -> sc_connect),
	    saddr2str (&sc -> sc_responding),
	    sprintb (sc -> sc_requirements, RMASK), sc -> sc_isn,
	    sc -> sc_ssdusize);

    sbo -> sb_sd = sc -> sc_sd;
    sbo -> sb_requirements = sc -> sc_requirements;
    sbo -> sb_settings = sc -> sc_settings;
#define dotoken(requires,shift,bit,type) \
{ \
    if (sbo -> sb_requirements & requires) \
	if ((sbo -> sb_settings & (ST_MASK << shift)) == ST_INIT_VALUE) \
	    sbo -> sb_owned |= bit; \
}
    dotokens ();
#undef  dotoken
    sbo -> sb_ssn = sbo -> sb_isn = sc -> sc_isn;

    SCFREE (sc);

/* do work here */

    switch (SReadRequest (sbi -> sb_sd, sx, NOTOK, si)) {
	case NOTOK:
	    adios (NULLCP, "S-READ.REQUEST: %s", SErrString (sa -> sa_reason));

	case OK:
	    adios (NULLCP, "not expecting DATA indication 0x%x", sx -> sx_type);

	case DONE:
	    if (si -> si_type != SI_FINISH)
		adios (NULLCP, "not expecting indication 0x%x", si -> si_type);
	    if (SRelResponse (sbi -> sb_sd, SC_ACCEPT, NULLCP, 0, si) == NOTOK)
		adios (NULLCP, "S-RELEASE.RESPONSE: %s", SErrString (sa -> sa_reason));
	    break;
    }

    if (SRelRequest (sbo -> sb_sd, NULLCP, 0, NOTOK, sr, si) == NOTOK)
	adios (NULLCP, "S-RELEASE.REQUEST: %s", SErrString (sa -> sa_reason));
    if (!sr -> sr_affirmative)
	adios (NULLCP, "release rejected by peer");

    return (0);
}