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Annotation of driverkit/tests/read.m, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
        !             3:  *
        !             4:  * @APPLE_LICENSE_HEADER_START@
        !             5:  * 
        !             6:  * Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
        !             7:  * Reserved.  This file contains Original Code and/or Modifications of
        !             8:  * Original Code as defined in and that are subject to the Apple Public
        !             9:  * Source License Version 1.1 (the "License").  You may not use this file
        !            10:  * except in compliance with the License.  Please obtain a copy of the
        !            11:  * License at http://www.apple.com/publicsource and read it before using
        !            12:  * this file.
        !            13:  * 
        !            14:  * The Original Code and all software distributed under the License are
        !            15:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
        !            16:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
        !            17:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
        !            18:  * FITNESS FOR A PARTICULAR PURPOSE OR NON- INFRINGEMENT.  Please see the
        !            19:  * License for the specific language governing rights and limitations
        !            20:  * under the License.
        !            21:  * 
        !            22:  * @APPLE_LICENSE_HEADER_END@
        !            23:  */
        !            24: /*
        !            25:  * Read once.
        !            26:  */
        !            27: 
        !            28: #import <bsd/sys/types.h> 
        !            29: #import <ansi/stdio.h>
        !            30: #import <mach/kern_return.h>
        !            31: #import <mach/mach.h>
        !            32: #import <ansi/stdlib.h>
        !            33: #import <bsd/libc.h>
        !            34: #import "buflib.h"
        !            35: #import "defaults.h"
        !            36: #import <remote/NXConnection.h>
        !            37: #import <driverkit/IODisk.h>
        !            38: #import <driverkit/IODiskRwDistributed.h>
        !            39: 
        !            40: void usage(char **argv);
        !            41: void exit(int exitcode);
        !            42: void mach_error(char *c, kern_return_t e);
        !            43: 
        !            44: int main(int argc, char **argv) {
        !            45: 
        !            46:        int             arg;
        !            47:        char            c;
        !            48:        id              targetId;
        !            49:        IOReturn        rtn;
        !            50:        u_int           bytes_xfr;
        !            51:        const char      *outstr;
        !            52:        IOData          *rdata;
        !            53:        
        !            54:        /*
        !            55:         * user-spec'd variables 
        !            56:         */
        !            57:        u_char          dump_data = 0;          /* dump read data to stdout */
        !            58:        u_int           byte_count=BYTE_COUNT_DEFAULT;  /* bytes to read */
        !            59:        u_int           block_num=0;            
        !            60:        char            *hostname=HOST_DEFAULT;
        !            61:        char            *devname=DEVICE_DEFAULT;
        !            62:        char            do_unaligned=0;         /* force non-page-aligned read
        !            63:                                                 * buffer */
        !            64:                
        !            65:        /*
        !            66:         * FIXME - isn't there a better way to ensure that IOData gets 
        !            67:         * linked into this executable? We need it to be linked so that
        !            68:         * DO decode can instantiate it.
        !            69:         */
        !            70:        targetId = [IOData alloc];
        !            71:        [targetId free];
        !            72:        
        !            73:        /*
        !            74:         * Get standard defaults from environment or defaults.h
        !            75:         */
        !            76:        get_default("byte_count", &byte_count, BYTE_COUNT_DEFAULT);
        !            77:        get_default_t("hostname", &hostname, HOST_DEFAULT);
        !            78:        get_default_t("devname", &devname, DEVICE_DEFAULT);
        !            79: 
        !            80:        for(arg=1; arg<argc; arg++) {
        !            81:                c = argv[arg][0];
        !            82:                switch(c) {
        !            83:                    case 'y':
        !            84:                        byte_count = atoi(&argv[arg][2]);
        !            85:                        break;
        !            86:                    case 'h':
        !            87:                        hostname = &argv[arg][2];
        !            88:                        break;
        !            89:                    case 'd':
        !            90:                        devname = &argv[arg][2];
        !            91:                        break;
        !            92:                    case 'b':
        !            93:                        block_num = atoi(&argv[arg][2]);
        !            94:                        break;
        !            95:                    case 'p':
        !            96:                        dump_data++;
        !            97:                        break;
        !            98:                    case 'u':
        !            99:                        do_unaligned++;
        !           100:                        break;
        !           101:                    default:
        !           102:                        usage(argv);
        !           103:                }
        !           104:        }
        !           105:        targetId = [NXConnection connectToName:devname
        !           106:                                         onHost:hostname];
        !           107:        if(targetId == nil) {
        !           108:                printf("connectToName:%s failed\n", devname);
        !           109:                exit(1);
        !           110:        }
        !           111: 
        !           112:        rtn = [targetId readAt:block_num
        !           113:                        length:byte_count
        !           114:                        data:&rdata
        !           115:                        actualLength:&bytes_xfr];
        !           116:        if(rtn != IO_R_SUCCESS) {
        !           117:                outstr = [targetId stringFromReturn:rtn];
        !           118:                printf("read: %s\n", outstr);
        !           119:                exit(1);
        !           120:        }
        !           121:        if(bytes_xfr != byte_count) {
        !           122:                printf("bytes_xfr = %d; expected %d\n", bytes_xfr, byte_count);
        !           123:        }       
        !           124:        if(dump_data) 
        !           125:                dump_buf((u_char *)[rdata data], bytes_xfr);
        !           126:        else 
        !           127:                printf("...ok\n");
        !           128:        exit(0);
        !           129: 
        !           130: } /* main() */
        !           131: 
        !           132: void usage(char **argv) {
        !           133:        printf("usage: %s [y=byte_count] [p (dump data)] [u(naligned buffer)] [b=block_num] [h=hostname] [d=devname]\n", argv[0]);
        !           134:        exit(1);
        !           135: }
        !           136: 

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