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Annotation of tme/generic/scsi.c, revision 1.1

1.1     ! root        1: /* $Id: scsi.c,v 1.1 2003/07/29 18:18:35 fredette Exp $ */
        !             2: 
        !             3: /* generic/scsi.c - generic SCSI implementation support: */
        !             4: 
        !             5: /*
        !             6:  * Copyright (c) 2003 Matt Fredette
        !             7:  * All rights reserved.
        !             8:  *
        !             9:  * Redistribution and use in source and binary forms, with or without
        !            10:  * modification, are permitted provided that the following conditions
        !            11:  * are met:
        !            12:  * 1. Redistributions of source code must retain the above copyright
        !            13:  *    notice, this list of conditions and the following disclaimer.
        !            14:  * 2. Redistributions in binary form must reproduce the above copyright
        !            15:  *    notice, this list of conditions and the following disclaimer in the
        !            16:  *    documentation and/or other materials provided with the distribution.
        !            17:  * 3. All advertising materials mentioning features or use of this software
        !            18:  *    must display the following acknowledgement:
        !            19:  *      This product includes software developed by Matt Fredette.
        !            20:  * 4. The name of the author may not be used to endorse or promote products
        !            21:  *    derived from this software without specific prior written permission.
        !            22:  *
        !            23:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
        !            24:  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
        !            25:  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
        !            26:  * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
        !            27:  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
        !            28:  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
        !            29:  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            30:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
        !            31:  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
        !            32:  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
        !            33:  * POSSIBILITY OF SUCH DAMAGE.
        !            34:  */
        !            35: 
        !            36: #include <tme/common.h>
        !            37: _TME_RCSID("$Id: scsi.c,v 1.1 2003/07/29 18:18:35 fredette Exp $");
        !            38: 
        !            39: /* includes: */
        !            40: #include <tme/generic/scsi.h>
        !            41: #include <stdlib.h>
        !            42: 
        !            43: /* this scores a SCSI connection: */
        !            44: int
        !            45: tme_scsi_connection_score(struct tme_connection *conn, unsigned int *_score)
        !            46: {
        !            47:   struct tme_scsi_connection *conn_scsi;
        !            48:   struct tme_scsi_connection *conn_scsi_other;
        !            49: 
        !            50:   /* both sides must be SCSI connections: */
        !            51:   assert(conn->tme_connection_type == TME_CONNECTION_SCSI);
        !            52:   assert(conn->tme_connection_other->tme_connection_type == TME_CONNECTION_SCSI);
        !            53: 
        !            54:   /* you cannot connect a bus to a bus, or a device to a device: */
        !            55:   conn_scsi
        !            56:     = (struct tme_scsi_connection *) conn;
        !            57:   conn_scsi_other 
        !            58:     = (struct tme_scsi_connection *) conn->tme_connection_other;
        !            59:   *_score
        !            60:     = ((conn_scsi->tme_scsi_connection_sequence_get
        !            61:        == NULL)
        !            62:        != (conn_scsi_other->tme_scsi_connection_sequence_get
        !            63:           == NULL));
        !            64:   return (TME_OK);
        !            65: }
        !            66: 
        !            67: /* this parses a SCSI ID: */
        !            68: int
        !            69: tme_scsi_id_parse(const char *id_string)
        !            70: {
        !            71:   unsigned long id;
        !            72:   char *p1;
        !            73: 
        !            74:   /* catch a NULL string: */
        !            75:   if (id_string == NULL) {
        !            76:     return (-1);
        !            77:   }
        !            78: 
        !            79:   /* convert the string: */
        !            80:   id = strtoul(id_string, &p1, 0);
        !            81:   if (p1 == id_string
        !            82:       || *p1 != '\0') {
        !            83:     return (-1);
        !            84:   }
        !            85:   return (id);
        !            86: }

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