extractedLnx/linux-2.6.6/drivers/scsi/gdth_proc.c_gdth_get_info.c

static int gdth_get_info(char *buffer,char **start,off_t offset,
                         int length,int hanum,int busnum)
{
    int size = 0,len = 0;
    off_t begin = 0,pos = 0;
    gdth_ha_str *ha;
    int id, i, j, k, sec, flag;
    int no_mdrv = 0, drv_no, is_mirr;
    ulong32 cnt, paddr;

    gdth_cmd_str gdtcmd;
    gdth_evt_str estr;
#if LINUX_VERSION_CODE >= 0x020503
    Scsi_Request *scp;
    Scsi_Device *sdev; 
#elif LINUX_VERSION_CODE >= 0x020322
    Scsi_Cmnd *scp;
    Scsi_Device *sdev;
#else
    Scsi_Cmnd scp;
    Scsi_Device sdev;
#endif
    char hrec[161];
    struct timeval tv;

    char *buf;
    gdth_dskstat_str *pds;
    gdth_diskinfo_str *pdi;
    gdth_arrayinf_str *pai;
    gdth_defcnt_str *pdef;
    gdth_cdrinfo_str *pcdi;
    gdth_hget_str *phg;

    char cmnd[MAX_COMMAND_SIZE];
    memset(cmnd, 0xff, 12);
    memset(&gdtcmd, 0, sizeof(gdth_cmd_str));

    TRACE2(("gdth_get_info() ha %d bus %d\n",hanum,busnum));
    ha = HADATA(gdth_ctr_tab[hanum]);

#if LINUX_VERSION_CODE >= 0x020503
    sdev = scsi_get_host_dev(gdth_ctr_tab[hanum]);
    scp  = scsi_allocate_request(sdev, GFP_KERNEL);
    if (!scp)
        return -ENOMEM;
    scp->sr_cmd_len = 12;
    scp->sr_use_sg = 0;
#elif LINUX_VERSION_CODE >= 0x020322
    sdev = scsi_get_host_dev(gdth_ctr_tab[hanum]);
    scp  = scsi_allocate_device(sdev, 1, FALSE);
    if (!scp)
        return -ENOMEM;
    scp->cmd_len = 12;
    scp->use_sg = 0;
#else
    memset(&sdev,0,sizeof(Scsi_Device));
    memset(&scp, 0,sizeof(Scsi_Cmnd));
    sdev.host = scp.host = gdth_ctr_tab[hanum];
    sdev.id = scp.target = sdev.host->this_id;
    scp.device = &sdev;
#endif

#ifdef GDTH_IOCTL_PROC
    /* ioctl from tool? */
    if (!gdth_ioctl_check_bin(hanum, (ushort)length)) {
#endif
        /* request is i.e. "cat /proc/scsi/gdth/0" */ 
        /* format: %-15s\t%-10s\t%-15s\t%s */
        /* driver parameters */
        size = sprintf(buffer+len,"Driver Parameters:\n");
        len += size;  pos = begin + len;
        if (reserve_list[0] == 0xff)
            strcpy(hrec, "--");
        else {
            sprintf(hrec, "%d", reserve_list[0]);
            for (i = 1;  i < MAX_RES_ARGS; i++) {
                if (reserve_list[i] == 0xff) 
                    break;
                sprintf(hrec,"%s,%d", hrec, reserve_list[i]);
            }
        }
        size = sprintf(buffer+len,
                       " reserve_mode: \t%d         \treserve_list:  \t%s\n",
                       reserve_mode, hrec);
        len += size;  pos = begin + len;
        size = sprintf(buffer+len,
                       " max_ids:      \t%-3d       \thdr_channel:   \t%d\n",
                       max_ids, hdr_channel);
        len += size;  pos = begin + len;

        /* controller information */
        size = sprintf(buffer+len,"\nDisk Array Controller Information:\n");
        len += size;  pos = begin + len;
        if (virt_ctr)
            sprintf(hrec, "%s (Bus %d)", ha->binfo.type_string, busnum);
        else
            strcpy(hrec, ha->binfo.type_string);
        size = sprintf(buffer+len,
                       " Number:       \t%d         \tName:          \t%s\n",
                       hanum, hrec);
        len += size;  pos = begin + len;

        if (ha->more_proc)
            sprintf(hrec, "%d.%02d.%02d-%c%03X", 
                    (unchar)(ha->binfo.upd_fw_ver>>24),
                    (unchar)(ha->binfo.upd_fw_ver>>16),
                    (unchar)(ha->binfo.upd_fw_ver),
                    ha->bfeat.raid ? 'R':'N',
                    ha->binfo.upd_revision);
        else
            sprintf(hrec, "%d.%02d", (unchar)(ha->cpar.version>>8),
                    (unchar)(ha->cpar.version));

        size = sprintf(buffer+len,
                       " Driver Ver.:  \t%-10s\tFirmware Ver.: \t%s\n",
                       GDTH_VERSION_STR, hrec);
        len += size;  pos = begin + len;
 
        if (pos < offset) {
            len = 0;
            begin = pos;
        }
        if (pos > offset + length)
            goto stop_output;

        if (ha->more_proc) {
            /* more information: 1. about controller */
            size = sprintf(buffer+len,
                           " Serial No.:   \t0x%8X\tCache RAM size:\t%d KB\n",
                           ha->binfo.ser_no, ha->binfo.memsize / 1024);
            len += size;  pos = begin + len;

            /* 2. about physical devices */
            size = sprintf(buffer+len,"\nPhysical Devices:");
            len += size;  pos = begin + len;
            flag = FALSE;
            
            buf = gdth_ioctl_alloc(hanum, GDTH_SCRATCH, FALSE, &paddr);
            if (!buf) 
                goto stop_output;
            for (i = 0; i < ha->bus_cnt; ++i) {
                /* 2.a statistics (and retries/reassigns) */
                TRACE2(("pdr_statistics() chn %d\n",i));                
                pds = (gdth_dskstat_str *)(buf + GDTH_SCRATCH/4);
                gdtcmd.Service = CACHESERVICE;
                gdtcmd.OpCode = GDT_IOCTL;
                gdtcmd.u.ioctl.p_param = paddr + GDTH_SCRATCH/4;
                gdtcmd.u.ioctl.param_size = 3*GDTH_SCRATCH/4;
                gdtcmd.u.ioctl.subfunc = DSK_STATISTICS | L_CTRL_PATTERN;
                gdtcmd.u.ioctl.channel = ha->raw[i].address | INVALID_CHANNEL;
                pds->bid = ha->raw[i].local_no;
                pds->first = 0;
                pds->entries = ha->raw[i].pdev_cnt;
                cnt = (3*GDTH_SCRATCH/4 - 5 * sizeof(ulong32)) /
                    sizeof(pds->list[0]);
                if (pds->entries > cnt)
                    pds->entries = cnt;
#if LINUX_VERSION_CODE >= 0x020503
                gdth_do_req(scp, &gdtcmd, cmnd, 30);
                if (scp->sr_command->SCp.Status != S_OK) 
#elif LINUX_VERSION_CODE >= 0x020322
                gdth_do_cmd(scp, &gdtcmd, cmnd, 30);
                if (scp->SCp.Status != S_OK) 
#else
                gdth_do_cmd(&scp, &gdtcmd, cmnd, 30);
                if (scp.SCp.Status != S_OK) 
#endif
                { 
                    pds->count = 0;
                }

                /* other IOCTLs must fit into area GDTH_SCRATCH/4 */
                for (j = 0; j < ha->raw[i].pdev_cnt; ++j) {
                    /* 2.b drive info */
                    TRACE2(("scsi_drv_info() chn %d dev %d\n",
                        i, ha->raw[i].id_list[j]));             
                    pdi = (gdth_diskinfo_str *)buf;
                    gdtcmd.Service = CACHESERVICE;
                    gdtcmd.OpCode = GDT_IOCTL;
                    gdtcmd.u.ioctl.p_param = paddr;
                    gdtcmd.u.ioctl.param_size = sizeof(gdth_diskinfo_str);
                    gdtcmd.u.ioctl.subfunc = SCSI_DR_INFO | L_CTRL_PATTERN;
                    gdtcmd.u.ioctl.channel = 
                        ha->raw[i].address | ha->raw[i].id_list[j];
#if LINUX_VERSION_CODE >= 0x020503
                    gdth_do_req(scp, &gdtcmd, cmnd, 30);
                    if (scp->sr_command->SCp.Status == S_OK) 
#elif LINUX_VERSION_CODE >= 0x020322
                    gdth_do_cmd(scp, &gdtcmd, cmnd, 30);
                    if (scp->SCp.Status == S_OK) 
#else
                    gdth_do_cmd(&scp, &gdtcmd, cmnd, 30);
                    if (scp.SCp.Status == S_OK) 
#endif
                    {
                        strncpy(hrec,pdi->vendor,8);
                        strncpy(hrec+8,pdi->product,16);
                        strncpy(hrec+24,pdi->revision,4);
                        hrec[28] = 0;
                        size = sprintf(buffer+len,
                                       "\n Chn/ID/LUN:   \t%c/%02d/%d    \tName:          \t%s\n",
                                       'A'+i,pdi->target_id,pdi->lun,hrec);
                        len += size;  pos = begin + len;
                        flag = TRUE;
                        pdi->no_ldrive &= 0xffff;
                        if (pdi->no_ldrive == 0xffff)
                            strcpy(hrec,"--");
                        else
                            sprintf(hrec,"%d",pdi->no_ldrive);
                        size = sprintf(buffer+len,
                                       " Capacity [MB]:\t%-6d    \tTo Log. Drive: \t%s\n",
                                       pdi->blkcnt/(1024*1024/pdi->blksize),
                                       hrec);
                        len += size;  pos = begin + len;
                    } else {
                        pdi->devtype = 0xff;
                    }
                    
                    if (pdi->devtype == 0) {
                        /* search retries/reassigns */
                        for (k = 0; k < pds->count; ++k) {
                            if (pds->list[k].tid == pdi->target_id &&
                                pds->list[k].lun == pdi->lun) {
                                size = sprintf(buffer+len,
                                               " Retries:      \t%-6d    \tReassigns:     \t%d\n",
                                               pds->list[k].retries,
                                               pds->list[k].reassigns);
                                len += size;  pos = begin + len;
                                break;
                            }
                        }
                        /* 2.c grown defects */
                        TRACE2(("scsi_drv_defcnt() chn %d dev %d\n",
                                i, ha->raw[i].id_list[j]));             
                        pdef = (gdth_defcnt_str *)buf;
                        gdtcmd.Service = CACHESERVICE;
                        gdtcmd.OpCode = GDT_IOCTL;
                        gdtcmd.u.ioctl.p_param = paddr;
                        gdtcmd.u.ioctl.param_size = sizeof(gdth_defcnt_str);
                        gdtcmd.u.ioctl.subfunc = SCSI_DEF_CNT | L_CTRL_PATTERN;
                        gdtcmd.u.ioctl.channel = 
                            ha->raw[i].address | ha->raw[i].id_list[j];
                        pdef->sddc_type = 0x08;
#if LINUX_VERSION_CODE >= 0x020503
                        gdth_do_req(scp, &gdtcmd, cmnd, 30);
                        if (scp->sr_command->SCp.Status == S_OK) 
#elif LINUX_VERSION_CODE >= 0x020322
                        gdth_do_cmd(scp, &gdtcmd, cmnd, 30);
                        if (scp->SCp.Status == S_OK) 
#else
                        gdth_do_cmd(&scp, &gdtcmd, cmnd, 30);
                        if (scp.SCp.Status == S_OK) 
#endif
                        {
                            size = sprintf(buffer+len,
                                           " Grown Defects:\t%d\n",
                                           pdef->sddc_cnt);
                            len += size;  pos = begin + len;
                        }
                    }
                    if (pos < offset) {
                        len = 0;
                        begin = pos;
                    }
                    if (pos > offset + length)
                        goto stop_output;
                }
            }
            gdth_ioctl_free(hanum, GDTH_SCRATCH, buf, paddr);

            if (!flag) {
                size = sprintf(buffer+len, "\n --\n");
                len += size;  pos = begin + len;
            }

            /* 3. about logical drives */
            size = sprintf(buffer+len,"\nLogical Drives:");
            len += size;  pos = begin + len;
            flag = FALSE;

            buf = gdth_ioctl_alloc(hanum, GDTH_SCRATCH, FALSE, &paddr);
            if (!buf) 
                goto stop_output;
            for (i = 0; i < MAX_LDRIVES; ++i) {
                if (!ha->hdr[i].is_logdrv)
                    continue;
                drv_no = i;
                j = k = 0;
                is_mirr = FALSE;
                do {
                    /* 3.a log. drive info */
                    TRACE2(("cache_drv_info() drive no %d\n",drv_no));
                    pcdi = (gdth_cdrinfo_str *)buf;
                    gdtcmd.Service = CACHESERVICE;
                    gdtcmd.OpCode = GDT_IOCTL;
                    gdtcmd.u.ioctl.p_param = paddr;
                    gdtcmd.u.ioctl.param_size = sizeof(gdth_cdrinfo_str);
                    gdtcmd.u.ioctl.subfunc = CACHE_DRV_INFO;
                    gdtcmd.u.ioctl.channel = drv_no;
#if LINUX_VERSION_CODE >= 0x020503
                    gdth_do_req(scp, &gdtcmd, cmnd, 30);
                    if (scp->sr_command->SCp.Status != S_OK) 
#elif LINUX_VERSION_CODE >= 0x020322
                    gdth_do_cmd(scp, &gdtcmd, cmnd, 30);
                    if (scp->SCp.Status != S_OK)
#else
                    gdth_do_cmd(&scp, &gdtcmd, cmnd, 30);
                    if (scp.SCp.Status != S_OK)
#endif
                    {
                        break;
                    }
                    pcdi->ld_dtype >>= 16;
                    j++;
                    if (pcdi->ld_dtype > 2) {
                        strcpy(hrec, "missing");
                    } else if (pcdi->ld_error & 1) {
                        strcpy(hrec, "fault");
                    } else if (pcdi->ld_error & 2) {
                        strcpy(hrec, "invalid");
                        k++; j--;
                    } else {
                        strcpy(hrec, "ok");
                    }
                    
                    if (drv_no == i) {
                        size = sprintf(buffer+len,
                                       "\n Number:       \t%-2d        \tStatus:        \t%s\n",
                                       drv_no, hrec);
                        len += size;  pos = begin + len;
                        flag = TRUE;
                        no_mdrv = pcdi->cd_ldcnt;
                        if (no_mdrv > 1 || pcdi->ld_slave != -1) {
                            is_mirr = TRUE;
                            strcpy(hrec, "RAID-1");
                        } else if (pcdi->ld_dtype == 0) {
                            strcpy(hrec, "Disk");
                        } else if (pcdi->ld_dtype == 1) {
                            strcpy(hrec, "RAID-0");
                        } else if (pcdi->ld_dtype == 2) {
                            strcpy(hrec, "Chain");
                        } else {
                            strcpy(hrec, "???");
                        }
                        size = sprintf(buffer+len,
                                       " Capacity [MB]:\t%-6d    \tType:          \t%s\n",
                                       pcdi->ld_blkcnt/(1024*1024/pcdi->ld_blksize),
                                       hrec);
                        len += size;  pos = begin + len;
                    } else {
                        size = sprintf(buffer+len,
                                       " Slave Number: \t%-2d        \tStatus:        \t%s\n",
                                       drv_no & 0x7fff, hrec);
                        len += size;  pos = begin + len;
                    }
                    drv_no = pcdi->ld_slave;
                    if (pos < offset) {
                        len = 0;
                        begin = pos;
                    }
                    if (pos > offset + length)
                        goto stop_output;
                } while (drv_no != -1);
                
                if (is_mirr) {
                    size = sprintf(buffer+len,
                                   " Missing Drv.: \t%-2d        \tInvalid Drv.:  \t%d\n",
                                   no_mdrv - j - k, k);
                    len += size;  pos = begin + len;
                }
                
                if (!ha->hdr[i].is_arraydrv)
                    strcpy(hrec, "--");
                else
                    sprintf(hrec, "%d", ha->hdr[i].master_no);
                size = sprintf(buffer+len,
                               " To Array Drv.:\t%s\n", hrec);
                len += size;  pos = begin + len;
                if (pos < offset) {
                    len = 0;
                    begin = pos;
                }
                if (pos > offset + length)
                    goto stop_output;
            }       
            gdth_ioctl_free(hanum, GDTH_SCRATCH, buf, paddr);
        
            if (!flag) {
                size = sprintf(buffer+len, "\n --\n");
                len += size;  pos = begin + len;
            }   

            /* 4. about array drives */
            size = sprintf(buffer+len,"\nArray Drives:");
            len += size;  pos = begin + len;
            flag = FALSE;

            buf = gdth_ioctl_alloc(hanum, GDTH_SCRATCH, FALSE, &paddr);
            if (!buf) 
                goto stop_output;
            for (i = 0; i < MAX_LDRIVES; ++i) {
                if (!(ha->hdr[i].is_arraydrv && ha->hdr[i].is_master))
                    continue;
                /* 4.a array drive info */
                TRACE2(("array_info() drive no %d\n",i));
                pai = (gdth_arrayinf_str *)buf;
                gdtcmd.Service = CACHESERVICE;
                gdtcmd.OpCode = GDT_IOCTL;
                gdtcmd.u.ioctl.p_param = paddr;
                gdtcmd.u.ioctl.param_size = sizeof(gdth_arrayinf_str);
                gdtcmd.u.ioctl.subfunc = ARRAY_INFO | LA_CTRL_PATTERN;
                gdtcmd.u.ioctl.channel = i;
#if LINUX_VERSION_CODE >= 0x020503
                gdth_do_req(scp, &gdtcmd, cmnd, 30);
                if (scp->sr_command->SCp.Status == S_OK) 
#elif LINUX_VERSION_CODE >= 0x020322
                gdth_do_cmd(scp, &gdtcmd, cmnd, 30);
                if (scp->SCp.Status == S_OK) 
#else
                gdth_do_cmd(&scp, &gdtcmd, cmnd, 30);
                if (scp.SCp.Status == S_OK) 
#endif
                {
                    if (pai->ai_state == 0)
                        strcpy(hrec, "idle");
                    else if (pai->ai_state == 2)
                        strcpy(hrec, "build");
                    else if (pai->ai_state == 4)
                        strcpy(hrec, "ready");
                    else if (pai->ai_state == 6)
                        strcpy(hrec, "fail");
                    else if (pai->ai_state == 8 || pai->ai_state == 10)
                        strcpy(hrec, "rebuild");
                    else
                        strcpy(hrec, "error");
                    if (pai->ai_ext_state & 0x10)
                        strcat(hrec, "/expand");
                    else if (pai->ai_ext_state & 0x1)
                        strcat(hrec, "/patch");
                    size = sprintf(buffer+len,
                                   "\n Number:       \t%-2d        \tStatus:        \t%s\n",
                                   i,hrec);
                    len += size;  pos = begin + len;
                    flag = TRUE;

                    if (pai->ai_type == 0)
                        strcpy(hrec, "RAID-0");
                    else if (pai->ai_type == 4)
                        strcpy(hrec, "RAID-4");
                    else if (pai->ai_type == 5)
                        strcpy(hrec, "RAID-5");
                    else 
                        strcpy(hrec, "RAID-10");
                    size = sprintf(buffer+len,
                                   " Capacity [MB]:\t%-6d    \tType:          \t%s\n",
                                   pai->ai_size/(1024*1024/pai->ai_secsize),
                                   hrec);
                    len += size;  pos = begin + len;
                    if (pos < offset) {
                        len = 0;
                        begin = pos;
                    }
                    if (pos > offset + length)
                        goto stop_output;
                }
            }
            gdth_ioctl_free(hanum, GDTH_SCRATCH, buf, paddr);
        
            if (!flag) {
                size = sprintf(buffer+len, "\n --\n");
                len += size;  pos = begin + len;
            }

            /* 5. about host drives */
            size = sprintf(buffer+len,"\nHost Drives:");
            len += size;  pos = begin + len;
            flag = FALSE;

            buf = gdth_ioctl_alloc(hanum, sizeof(gdth_hget_str), FALSE, &paddr);
            if (!buf) 
                goto stop_output;
            for (i = 0; i < MAX_LDRIVES; ++i) {
                if (!ha->hdr[i].is_logdrv || 
                    (ha->hdr[i].is_arraydrv && !ha->hdr[i].is_master))
                    continue;
                /* 5.a get host drive list */
                TRACE2(("host_get() drv_no %d\n",i));           
                phg = (gdth_hget_str *)buf;
                gdtcmd.Service = CACHESERVICE;
                gdtcmd.OpCode = GDT_IOCTL;
                gdtcmd.u.ioctl.p_param = paddr;
                gdtcmd.u.ioctl.param_size = sizeof(gdth_hget_str);
                gdtcmd.u.ioctl.subfunc = HOST_GET | LA_CTRL_PATTERN;
                gdtcmd.u.ioctl.channel = i;
                phg->entries = MAX_HDRIVES;
                phg->offset = GDTOFFSOF(gdth_hget_str, entry[0]); 
#if LINUX_VERSION_CODE >= 0x020503
                gdth_do_req(scp, &gdtcmd, cmnd, 30);
                if (scp->sr_command->SCp.Status != S_OK) 
#elif LINUX_VERSION_CODE >= 0x020322
                gdth_do_cmd(scp, &gdtcmd, cmnd, 30);
                if (scp->SCp.Status != S_OK) 
#else
                gdth_do_cmd(&scp, &gdtcmd, cmnd, 30);
                if (scp.SCp.Status != S_OK) 
#endif
                {
                    ha->hdr[i].ldr_no = i;
                    ha->hdr[i].rw_attribs = 0;
                    ha->hdr[i].start_sec = 0;
                } else {
                    for (j = 0; j < phg->entries; ++j) {
                        k = phg->entry[j].host_drive;
                        if (k >= MAX_LDRIVES)
                            continue;
                        ha->hdr[k].ldr_no = phg->entry[j].log_drive;
                        ha->hdr[k].rw_attribs = phg->entry[j].rw_attribs;
                        ha->hdr[k].start_sec = phg->entry[j].start_sec;
                    }
                }
            }
            gdth_ioctl_free(hanum, sizeof(gdth_hget_str), buf, paddr);

            for (i = 0; i < MAX_HDRIVES; ++i) {
                if (!(ha->hdr[i].present))
                    continue;
                
                size = sprintf(buffer+len,
                               "\n Number:       \t%-2d        \tArr/Log. Drive:\t%d\n",
                               i, ha->hdr[i].ldr_no);
                len += size;  pos = begin + len;
                flag = TRUE;

                size = sprintf(buffer+len,
                               " Capacity [MB]:\t%-6d    \tStart Sector:  \t%d\n",
                               ha->hdr[i].size/2048, ha->hdr[i].start_sec);
                len += size;  pos = begin + len;
                if (pos < offset) {
                    len = 0;
                    begin = pos;
                }
                if (pos > offset + length)
                    goto stop_output;
            }
        
            if (!flag) {
                size = sprintf(buffer+len, "\n --\n");
                len += size;  pos = begin + len;
            }
        }

        /* controller events */
        size = sprintf(buffer+len,"\nController Events:\n");
        len += size;  pos = begin + len;

        for (id = -1;;) {
            id = gdth_read_event(ha, id, &estr);
            if (estr.event_source == 0)
                break;
            if (estr.event_data.eu.driver.ionode == hanum &&
                estr.event_source == ES_ASYNC) { 
                gdth_log_event(&estr.event_data, hrec);
                do_gettimeofday(&tv);
                sec = (int)(tv.tv_sec - estr.first_stamp);
                if (sec < 0) sec = 0;
                size = sprintf(buffer+len," date- %02d:%02d:%02d\t%s\n",
                               sec/3600, sec%3600/60, sec%60, hrec);
                len += size;  pos = begin + len;
                if (pos < offset) {
                    len = 0;
                    begin = pos;
                }
                if (pos > offset + length)
                    goto stop_output;
            }
            if (id == -1)
                break;
        }
#ifdef GDTH_IOCTL_PROC
    } else {
        gdth_iord_str *piord;

        /* request from tool (GDTMON,..) */
        piord = (gdth_iord_str *)ha->pscratch;
        if (piord == NULL)
            goto stop_output;
        length = piord->size;
        memcpy(buffer+len, (char *)piord, length);
        gdth_ioctl_free(hanum, GDTH_SCRATCH, ha->pscratch, paddr);
        len = length; 
    }
#endif

stop_output:
#if LINUX_VERSION_CODE >= 0x020503
    scsi_release_request(scp);
    scsi_free_host_dev(sdev);
#elif LINUX_VERSION_CODE >= 0x020322
    scsi_release_command(scp);
    scsi_free_host_dev(sdev);
#endif
    *start = buffer +(offset-begin);
    len -= (offset-begin);
    if (len > length)
        len = length;
    TRACE2(("get_info() len %d pos %d begin %d offset %d length %d size %d\n",
            len,(int)pos,(int)begin,(int)offset,length,size));
    return(len);
}