59617ad4b8
probed in sysinstall. Rather than make template devices and use up lots of inodes, also restricting the number of devices that can be dealt with, mknod all necessary devices as necessary using built-in information. This removes a number of constraints on the number and type of devices that sysinstall can see.
454 lines
15 KiB
C
454 lines
15 KiB
C
/*
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* The new sysinstall program.
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*
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* This is probably the last program in the `sysinstall' line - the next
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* generation being essentially a complete rewrite.
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*
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* $Id: devices.c,v 1.68 1998/01/22 21:14:31 jkh Exp $
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*
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* Copyright (c) 1995
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* Jordan Hubbard. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer,
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* verbatim and that no modifications are made prior to this
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* point in the file.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY JORDAN HUBBARD ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL JORDAN HUBBARD OR HIS PETS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, LIFE OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#include "sysinstall.h"
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#include <sys/fcntl.h>
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#include <sys/param.h>
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#include <sys/socket.h>
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#include <sys/ioctl.h>
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#include <sys/errno.h>
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#include <sys/time.h>
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#include <net/if.h>
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#include <net/if_var.h>
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#include <net/if_dl.h>
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#include <netinet/in.h>
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#include <netinet/in_var.h>
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#include <arpa/inet.h>
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#include <ctype.h>
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static Device *Devices[DEV_MAX];
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static int numDevs;
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static struct _devname {
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DeviceType type;
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char *name;
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char *description;
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int major, minor, delta, max;
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char dev_type;
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} device_names[] = {
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{ DEVICE_TYPE_CDROM, "cd%dc", "SCSI CDROM drive", 6, 2, 8, 4, 'b' },
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{ DEVICE_TYPE_CDROM, "mcd%dc", "Mitsumi (old model) CDROM drive", 7, 2, 8, 4, 'b' },
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{ DEVICE_TYPE_CDROM, "scd%dc", "Sony CDROM drive - CDU31/33A type", 16, 2, 8, 4, 'b' },
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{ DEVICE_TYPE_CDROM, "matcd%dc", "Matsushita CDROM ('sound blaster' type)", 17, 2, 8, 4, 'b' },
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{ DEVICE_TYPE_CDROM, "wcd%dc", "ATAPI IDE CDROM", 19, 2, 8, 4, 'b' },
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{ DEVICE_TYPE_TAPE, "rst%d", "SCSI tape drive", 14, 0, 16, 4, 'c' },
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{ DEVICE_TYPE_TAPE, "rft%d", "Floppy tape drive (QIC-02)", 9, 32, 64, 4, 'c' },
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{ DEVICE_TYPE_TAPE, "rwt%d", "Wangtek tape drive", 10, 0, 1, 4, 'c' },
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{ DEVICE_TYPE_DISK, "sd%d", "SCSI disk device", 4, 65538, 8, 32, 'b' },
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{ DEVICE_TYPE_DISK, "rsd%d", "SCSI disk device", 13, 65538, 8, 32, 'c' },
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{ DEVICE_TYPE_DISK, "wd%d", "IDE/ESDI/MFM/ST506 disk device", 0, 65538, 8, 32, 'b' },
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{ DEVICE_TYPE_DISK, "rwd%d", "IDE/ESDI/MFM/ST506 disk device", 3, 65538, 8, 32, 'c' },
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{ DEVICE_TYPE_DISK, "od%d", "SCSI optical disk device", 20, 65538, 8, 4, 'b' },
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{ DEVICE_TYPE_DISK, "rod%d", "SCSI optical disk device", 70, 65538, 8, 4, 'c' },
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{ DEVICE_TYPE_DISK, "wfd%d", "ATAPI FLOPPY (LS-120) device", 24, 65538, 8, 4, 'b' },
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{ DEVICE_TYPE_DISK, "rwfd%d", "ATAPI FLOPPY (LS-120) device", 87, 65538, 8, 4, 'c' },
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{ DEVICE_TYPE_FLOPPY, "fd%d", "floppy drive unit A", 2, 0, 64, 4, 'b' },
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{ DEVICE_TYPE_FLOPPY, "worm%d", "SCSI optical disk / CDR", 23, 0, 1, 4, 'b' },
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{ DEVICE_TYPE_NETWORK, "cuaa%d", "%s on device %s (COM%d)", 28, 128, 1, 16, 'c' },
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{ DEVICE_TYPE_NETWORK, "lp", "Parallel Port IP (PLIP) peer connection" },
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{ DEVICE_TYPE_NETWORK, "lo", "Loop-back (local) network interface" },
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{ DEVICE_TYPE_NETWORK, "de", "DEC DE435 PCI NIC or other DC21040-AA based card" },
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{ DEVICE_TYPE_NETWORK, "fxp", "Intel EtherExpress Pro/100B PCI Fast Ethernet card" },
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{ DEVICE_TYPE_NETWORK, "ed", "WD/SMC 80xx; Novell NE1000/2000; 3Com 3C503 card" },
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{ DEVICE_TYPE_NETWORK, "ep", "3Com 3C509 ethernet card" },
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{ DEVICE_TYPE_NETWORK, "el", "3Com 3C501 ethernet card" },
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{ DEVICE_TYPE_NETWORK, "ex", "Intel EtherExpress Pro/10 ethernet card" },
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{ DEVICE_TYPE_NETWORK, "fe", "Fujitsu MB86960A/MB86965A ethernet card" },
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{ DEVICE_TYPE_NETWORK, "ie", "AT&T StarLAN 10 and EN100; 3Com 3C507; NI5210" },
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{ DEVICE_TYPE_NETWORK, "ix", "Intel Etherexpress ethernet card" },
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{ DEVICE_TYPE_NETWORK, "le", "DEC EtherWorks 2 or 3 ethernet card" },
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{ DEVICE_TYPE_NETWORK, "lnc", "Lance/PCnet (Isolan/Novell NE2100/NE32-VL) ethernet" },
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{ DEVICE_TYPE_NETWORK, "tx", "SMC 9432TX ethernet card" },
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{ DEVICE_TYPE_NETWORK, "vx", "3COM 3c590 / 3c595 / 3c9xx ethernet card" },
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{ DEVICE_TYPE_NETWORK, "ze", "IBM/National Semiconductor PCMCIA ethernet card" },
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{ DEVICE_TYPE_NETWORK, "zp", "3Com Etherlink III PCMCIA ethernet card" },
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{ 0 },
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};
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Device *
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new_device(char *name)
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{
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Device *dev;
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dev = safe_malloc(sizeof(Device));
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bzero(dev, sizeof(Device));
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if (name)
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SAFE_STRCPY(dev->name, name);
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return dev;
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}
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/* Stubs for unimplemented strategy routines */
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Boolean
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dummyInit(Device *dev)
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{
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return TRUE;
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}
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FILE *
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dummyGet(Device *dev, char *dist, Boolean probe)
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{
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return NULL;
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}
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void
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dummyShutdown(Device *dev)
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{
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return;
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}
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static int
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deviceTry(struct _devname dev, char *try, int i)
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{
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int fd;
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char unit[80];
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mode_t m;
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dev_t d;
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int fail;
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snprintf(unit, sizeof unit, dev.name, i);
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snprintf(try, FILENAME_MAX, "/dev/%s", unit);
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m = 0666;
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if (dev.dev_type == 'c')
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m |= S_IFCHR;
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else
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m |= S_IFBLK;
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d = makedev(dev.major, dev.minor + (i * dev.delta));
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fail = mknod(try, m, d);
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fd = open(try, O_RDONLY);
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if (fd > 0)
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return fd;
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else if (!fail)
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(void)unlink(try);
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/* Don't try a "make-under" here since we're using a fixit floppy in this case */
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snprintf(try, FILENAME_MAX, "/mnt/dev/%s", unit);
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fd = open(try, O_RDONLY);
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return fd;
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}
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/* Register a new device in the devices array */
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Device *
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deviceRegister(char *name, char *desc, char *devname, DeviceType type, Boolean enabled,
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Boolean (*init)(Device *), FILE * (*get)(Device *, char *, Boolean),
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void (*shutdown)(Device *), void *private)
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{
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Device *newdev = NULL;
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if (numDevs == DEV_MAX)
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msgFatal("Too many devices found!");
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else {
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newdev = new_device(name);
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newdev->description = desc;
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newdev->devname = devname;
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newdev->type = type;
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newdev->enabled = enabled;
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newdev->init = init ? init : dummyInit;
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newdev->get = get ? get : dummyGet;
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newdev->shutdown = shutdown ? shutdown : dummyShutdown;
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newdev->private = private;
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Devices[numDevs] = newdev;
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Devices[++numDevs] = NULL;
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}
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return newdev;
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}
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/* Get all device information for devices we have attached */
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void
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deviceGetAll(void)
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{
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int i, j, fd, s;
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struct ifconf ifc;
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struct ifreq *ifptr, *end;
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int ifflags;
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char buffer[INTERFACE_MAX * sizeof(struct ifreq)];
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char **names;
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/* First go for the network interfaces. Stolen shamelessly from ifconfig! */
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ifc.ifc_len = sizeof(buffer);
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ifc.ifc_buf = buffer;
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s = socket(AF_INET, SOCK_DGRAM, 0);
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if (s < 0) {
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msgConfirm("ifconfig: socket");
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goto skipif; /* Jump over network iface probing */
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}
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if (ioctl(s, SIOCGIFCONF, (char *) &ifc) < 0) {
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msgConfirm("ifconfig (SIOCGIFCONF)");
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goto skipif; /* Jump over network iface probing */
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}
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ifflags = ifc.ifc_req->ifr_flags;
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end = (struct ifreq *) (ifc.ifc_buf + ifc.ifc_len);
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for (ifptr = ifc.ifc_req; ifptr < end; ifptr++) {
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char *descr;
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/* If it's not a link entry, forget it */
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if (ifptr->ifr_ifru.ifru_addr.sa_family != AF_LINK)
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continue;
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/* Eliminate network devices that don't make sense */
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if (!strncmp(ifptr->ifr_name, "lo", 2))
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continue;
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/* If we have a slip device, don't register it */
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if (!strncmp(ifptr->ifr_name, "sl", 2)) {
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continue;
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}
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/* And the same for ppp */
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if (!strncmp(ifptr->ifr_name, "tun", 3) || !strncmp(ifptr->ifr_name, "ppp", 3)) {
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continue;
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}
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/* Try and find its description */
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for (i = 0, descr = NULL; device_names[i].name; i++) {
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int len = strlen(device_names[i].name);
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if (!ifptr->ifr_name || !ifptr->ifr_name[0])
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continue;
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else if (!strncmp(ifptr->ifr_name, device_names[i].name, len)) {
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descr = device_names[i].description;
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break;
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}
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}
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if (!descr)
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descr = "<unknown network interface type>";
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deviceRegister(ifptr->ifr_name, descr, strdup(ifptr->ifr_name), DEVICE_TYPE_NETWORK, TRUE,
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mediaInitNetwork, NULL, mediaShutdownNetwork, NULL);
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msgDebug("Found a network device named %s\n", ifptr->ifr_name);
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close(s);
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if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
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msgConfirm("ifconfig: socket");
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continue;
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}
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if (ifptr->ifr_addr.sa_len) /* I'm not sure why this is here - it's inherited */
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ifptr = (struct ifreq *)((caddr_t)ifptr + ifptr->ifr_addr.sa_len - sizeof(struct sockaddr));
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}
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skipif:
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/* Next, try to find all the types of devices one might need
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* during the second stage of the installation.
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*/
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for (i = 0; device_names[i].name; i++) {
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for (j = 0; j < device_names[i].max; j++) {
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char try[FILENAME_MAX];
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switch(device_names[i].type) {
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case DEVICE_TYPE_CDROM:
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fd = deviceTry(device_names[i], try, j);
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if (fd >= 0 || errno == EBUSY) { /* EBUSY if already mounted */
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if (fd >= 0) close(fd);
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(void)deviceRegister(device_names[i].name, device_names[i].description, strdup(try),
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DEVICE_TYPE_CDROM, TRUE, mediaInitCDROM, mediaGetCDROM,
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mediaShutdownCDROM, NULL);
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msgDebug("Found a CDROM device for %s\n", try);
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}
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break;
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case DEVICE_TYPE_TAPE:
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fd = deviceTry(device_names[i], try, j);
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if (fd >= 0) {
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close(fd);
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deviceRegister(device_names[i].name, device_names[i].description, strdup(try),
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DEVICE_TYPE_TAPE, TRUE, mediaInitTape, mediaGetTape, mediaShutdownTape, NULL);
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msgDebug("Found a TAPE device for %s\n", try);
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}
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break;
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case DEVICE_TYPE_DISK:
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/* We do this just for the side-effect of creating the device entries. The actual registration
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is done through the libdisk API later. */
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fd = deviceTry(device_names[i], try, j);
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if (fd >= 0)
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close(fd);
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break;
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case DEVICE_TYPE_FLOPPY:
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fd = deviceTry(device_names[i], try, j);
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if (fd >= 0) {
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close(fd);
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deviceRegister(device_names[i].name, device_names[i].description, strdup(try),
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DEVICE_TYPE_FLOPPY, TRUE, mediaInitFloppy, mediaGetFloppy,
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mediaShutdownFloppy, NULL);
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msgDebug("Found a floppy device for %s\n", try);
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}
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break;
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case DEVICE_TYPE_NETWORK:
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fd = deviceTry(device_names[i], try, j);
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/* The only network devices that you can open this way are serial ones */
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if (fd >= 0) {
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char *newdesc, *cp;
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close(fd);
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cp = device_names[i].description;
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/* Serial devices get a slip and ppp device each, if supported */
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newdesc = safe_malloc(strlen(cp) + 40);
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sprintf(newdesc, cp, "SLIP interface", try, j + 1);
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deviceRegister("sl0", newdesc, strdup(try), DEVICE_TYPE_NETWORK, TRUE, mediaInitNetwork,
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NULL, mediaShutdownNetwork, NULL);
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msgDebug("Add mapping for %s to sl0\n", try);
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newdesc = safe_malloc(strlen(cp) + 50);
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sprintf(newdesc, cp, "PPP interface", try, j + 1);
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deviceRegister("ppp0", newdesc, strdup(try), DEVICE_TYPE_NETWORK, TRUE, mediaInitNetwork,
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NULL, mediaShutdownNetwork, NULL);
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msgDebug("Add mapping for %s to ppp0\n", try);
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}
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break;
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default:
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break;
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}
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}
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}
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/* Finally, go get the disks and look for DOS partitions to register */
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if ((names = Disk_Names()) != NULL) {
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int i;
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for (i = 0; names[i]; i++) {
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Chunk *c1;
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Disk *d;
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d = Open_Disk(names[i]);
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if (!d)
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msgFatal("Unable to open disk %s", names[i]);
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deviceRegister(names[i], names[i], d->name, DEVICE_TYPE_DISK, FALSE,
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dummyInit, dummyGet, dummyShutdown, d);
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msgDebug("Found a disk device named %s\n", names[i]);
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/* Look for existing DOS partitions to register as "DOS media devices" */
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for (c1 = d->chunks->part; c1; c1 = c1->next) {
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if (c1->type == fat || c1->type == extended) {
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Device *dev;
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char devname[80];
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/* Got one! */
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snprintf(devname, sizeof devname, "/dev/%s", c1->name);
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dev = deviceRegister(c1->name, c1->name, strdup(devname), DEVICE_TYPE_DOS, TRUE,
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mediaInitDOS, mediaGetDOS, mediaShutdownDOS, NULL);
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dev->private = c1;
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msgDebug("Found a DOS partition %s on drive %s\n", c1->name, d->name);
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}
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}
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}
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free(names);
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}
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}
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/*
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* Find all devices that match the criteria, allowing "wildcarding" as well
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* by allowing NULL or ANY values to match all. The array returned is static
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* and may be used until the next invocation of deviceFind().
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*/
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Device **
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deviceFind(char *name, DeviceType class)
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{
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static Device *found[DEV_MAX];
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int i, j;
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j = 0;
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for (i = 0; i < numDevs; i++) {
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if ((!name || !strcmp(Devices[i]->name, name))
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&& (class == DEVICE_TYPE_ANY || class == Devices[i]->type))
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found[j++] = Devices[i];
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}
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found[j] = NULL;
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return j ? found : NULL;
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}
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Device **
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deviceFindDescr(char *name, char *desc, DeviceType class)
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{
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static Device *found[DEV_MAX];
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int i, j;
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j = 0;
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for (i = 0; i < numDevs; i++) {
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if ((!name || !strcmp(Devices[i]->name, name)) &&
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(!desc || !strcmp(Devices[i]->description, desc)) &&
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(class == DEVICE_TYPE_ANY || class == Devices[i]->type))
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found[j++] = Devices[i];
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}
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found[j] = NULL;
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return j ? found : NULL;
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}
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int
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deviceCount(Device **devs)
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{
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int i;
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if (!devs)
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return 0;
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for (i = 0; devs[i]; i++);
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return i;
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}
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/*
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* Create a menu listing all the devices of a certain type in the system.
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* The passed-in menu is expected to be a "prototype" from which the new
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* menu is cloned.
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*/
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DMenu *
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deviceCreateMenu(DMenu *menu, DeviceType type, int (*hook)(dialogMenuItem *d), int (*check)(dialogMenuItem *d))
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{
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Device **devs;
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int numdevs;
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DMenu *tmp = NULL;
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int i, j;
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devs = deviceFind(NULL, type);
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numdevs = deviceCount(devs);
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if (!numdevs)
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return NULL;
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tmp = (DMenu *)safe_malloc(sizeof(DMenu) + (sizeof(dialogMenuItem) * (numdevs + 1)));
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bcopy(menu, tmp, sizeof(DMenu));
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for (i = 0; devs[i]; i++) {
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tmp->items[i].prompt = devs[i]->name;
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for (j = 0; j < numDevs; j++) {
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if (devs[i] == Devices[j]) {
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tmp->items[i].title = Devices[j]->description;
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break;
|
|
}
|
|
}
|
|
if (j == numDevs)
|
|
tmp->items[i].title = "<unknown device type>";
|
|
tmp->items[i].fire = hook;
|
|
tmp->items[i].checked = check;
|
|
}
|
|
tmp->items[i].title = NULL;
|
|
return tmp;
|
|
}
|