Annotation of 43BSDReno/contrib/isode-beta/ftam/ftamaccess1.c, revision 1.1

1.1     ! root        1: /* ftamaccess1.c - FPM: initiate file access */
        !             2: 
        !             3: #ifndef        lint
        !             4: static char *rcsid = "$Header: /f/osi/ftam/RCS/ftamaccess1.c,v 7.0 89/11/23 21:53:20 mrose Rel $";
        !             5: #endif
        !             6: 
        !             7: /* 
        !             8:  * $Header: /f/osi/ftam/RCS/ftamaccess1.c,v 7.0 89/11/23 21:53:20 mrose Rel $
        !             9:  *
        !            10:  *
        !            11:  * $Log:       ftamaccess1.c,v $
        !            12:  * Revision 7.0  89/11/23  21:53:20  mrose
        !            13:  * Release 6.0
        !            14:  * 
        !            15:  */
        !            16: 
        !            17: /*
        !            18:  *                               NOTICE
        !            19:  *
        !            20:  *    Acquisition, use, and distribution of this module and related
        !            21:  *    materials are subject to the restrictions of a license agreement.
        !            22:  *    Consult the Preface in the User's Manual for the full terms of
        !            23:  *    this agreement.
        !            24:  *
        !            25:  */
        !            26: 
        !            27: 
        !            28: /* LINTLIBRARY */
        !            29: 
        !            30: #include <stdio.h>
        !            31: #include <signal.h>
        !            32: #include "fpkt.h"
        !            33: 
        !            34: /*    F-{LOCATE,ERASE}.REQUEST */
        !            35: 
        !            36: int    FAccessRequest (sd, operation, identity, lock, fti)
        !            37: int    sd;
        !            38: int    operation;
        !            39: struct FADUidentity *identity;
        !            40: int    lock;   /* F-LOCATE.REQUEST only */
        !            41: struct FTAMindication *fti;
        !            42: {
        !            43:     SBV      smask;
        !            44:     int     result,
        !            45:            state;
        !            46:     register struct ftamblk *fsb;
        !            47: 
        !            48:     switch (operation) {
        !            49:        case FA_OPS_LOCATE: 
        !            50:            state = FSB_LOCATE;
        !            51:            break;
        !            52: 
        !            53:        case FA_OPS_ERASE: 
        !            54:            state = FSB_ERASE;
        !            55:            break;
        !            56: 
        !            57:        default: 
        !            58:            return ftamlose (fti, FS_GEN_NOREASON, 0, NULLCP,
        !            59:                    "bad value for operation parameter");
        !            60:     }
        !            61:     missingP (identity);
        !            62:     missingP (fti);
        !            63: 
        !            64:     smask = sigioblock ();
        !            65: 
        !            66:     ftamPsig (fsb, sd);
        !            67: 
        !            68:     result = FAccessRequestAux (fsb, state, identity, lock, fti);
        !            69: 
        !            70:     (void) sigiomask (smask);
        !            71: 
        !            72:     return result;
        !            73: }
        !            74: 
        !            75: /*  */
        !            76: 
        !            77: static int  FAccessRequestAux (fsb, state, identity, lock, fti)
        !            78: register struct ftamblk *fsb;
        !            79: int    state;
        !            80: struct FADUidentity *identity;
        !            81: int    lock;
        !            82: struct FTAMindication *fti;
        !            83: {
        !            84:     int     result;
        !            85:     PE     pe;
        !            86:     struct PSAPindication   pis;
        !            87:     struct PSAPindication  *pi = &pis;
        !            88:     struct PSAPabort   *pa = &pi -> pi_abort;
        !            89:     register struct type_FTAM_PDU *pdu;
        !            90:     register struct type_FTAM_F__LOCATE__request *req;
        !            91: 
        !            92:     if (!(fsb -> fsb_flags & FSB_INIT))
        !            93:        return ftamlose (fti, FS_GEN (fsb), 0, NULLCP, "not initiator");
        !            94:     if (fsb -> fsb_state != FSB_DATAIDLE)
        !            95:        return ftamlose (fti, FS_GEN (fsb), 0, NULLCP, "wrong state");
        !            96:     if (!(fsb -> fsb_units & FUNIT_ACCESS))
        !            97:        return ftamlose (fti, FS_GEN (fsb), 0, NULLCP,
        !            98:                    "file access not allowed");
        !            99: 
        !           100:     pe = NULLPE;
        !           101:     if ((pdu = (struct type_FTAM_PDU *) calloc (1, sizeof *pdu)) == NULL) {
        !           102: no_mem: ;
        !           103:        (void) ftamlose (fti, FS_GEN (fsb), 1, NULLCP, "out of memory");
        !           104: out: ;
        !           105:        if (pe)
        !           106:            pe_free (pe);
        !           107:        if (pdu)
        !           108:            free_FTAM_PDU (pdu);
        !           109:        if (fti -> fti_abort.fta_action == FACTION_PERM)
        !           110:            freefsblk (fsb);
        !           111:        return NOTOK;
        !           112:     }
        !           113:                        /* F-ERASE-request is identical... */
        !           114:     pdu -> offset = state != FSB_LOCATE ? type_FTAM_PDU_f__erase__request
        !           115:                                        : type_FTAM_PDU_f__locate__request;
        !           116:     if ((req = (struct type_FTAM_F__LOCATE__request *)
        !           117:                        calloc (1, sizeof *req)) == NULL)
        !           118:        goto no_mem;
        !           119:     pdu -> un.f__locate__request = req;
        !           120:     if ((req -> file__access__data__unit__identity =
        !           121:                        faduid2fpm (fsb, identity, fti)) == NULL)
        !           122:        goto out;
        !           123:     if ((fsb -> fsb_units & FUNIT_FADULOCK) && state == FSB_LOCATE) {
        !           124:        if ((req -> fadu__lock = (struct type_FTAM_FADU__Lock *)
        !           125:                                        calloc (1, sizeof *req -> fadu__lock))
        !           126:                == NULL)
        !           127:            goto no_mem;
        !           128:        req -> fadu__lock -> parm = lock ? int_FTAM_FADU__Lock_on
        !           129:                                         : int_FTAM_FADU__Lock_off;
        !           130:     }
        !           131: 
        !           132:     if (encode_FTAM_PDU (&pe, 1, 0, NULLCP, pdu) == NOTOK) {
        !           133:        (void) ftamlose (fti, FS_GEN (fsb), 1, NULLCP,
        !           134:                         "error encoding PDU: %s", PY_pepy);
        !           135:        goto out;
        !           136:     }
        !           137: 
        !           138:     pe -> pe_context = fsb -> fsb_id;
        !           139: 
        !           140:     fsbtrace (fsb, (fsb -> fsb_fd, "P-DATA.REQUEST",
        !           141:                    state == FSB_LOCATE ? "F-LOCATE-request"
        !           142:                                        : "F-ERASE-request", pe, 0));
        !           143: 
        !           144:     result = PDataRequest (fsb -> fsb_fd, &pe, 1, pi);
        !           145: 
        !           146:     pe_free (pe);
        !           147:     pe = NULLPE;
        !           148:     free_FTAM_PDU (pdu);
        !           149:     pdu = NULL;
        !           150: 
        !           151:     if (result == NOTOK) {
        !           152:        (void) ps2ftamlose (fsb, fti, "PDataRequest", pa);
        !           153:        goto out;
        !           154:     }
        !           155: 
        !           156:     fsb -> fsb_state = state;
        !           157: 
        !           158:     return FWaitRequestAux (fsb, NOTOK, fti);
        !           159: }

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