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/*
* pathname.c -
*
* Written by Eryk Vershen (eryk@apple.com)
*/
/*
* Copyright 1997,1998 by Apple Computer, Inc.
* All Rights Reserved
*
* Permission to use, copy, modify, and distribute this software and
* its documentation for any purpose and without fee is hereby granted,
* provided that the above copyright notice appears in all copies and
* that both the copyright notice and this permission notice appear in
* supporting documentation.
*
* APPLE COMPUTER DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE.
*
* IN NO EVENT SHALL APPLE COMPUTER BE LIABLE FOR ANY SPECIAL, INDIRECT, OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
* LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT,
* NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
// for strncmp()
#include <string.h>
#include "pathname.h"
#include "file_media.h"
/*
* Defines
*/
/*
* Types
*/
/*
* Global Constants
*/
/*
* Global Variables
*/
/*
* Forward declarations
*/
/*
* Routines
*/
/*
* Note that open_pathname_as_media() and get_mklinux_name() have almost
* identical structures. If one changes the other must also!
*/
MEDIA
open_pathname_as_media(char *path, int oflag)
{
MEDIA m = 0;
#if !defined(__linux__) && !defined(__unix__)
long id;
long bus;
if (strncmp("/dev/", path, 5) == 0) {
if (strncmp("/dev/scsi", path, 9) == 0) {
if (path[9] >= '0' && path[9] <= '7' && path[10] == 0) {
id = path[9] - '0';
m = open_old_scsi_as_media(id);
} else if (path[9] >= '0' && path[9] <= '7' && path[10] == '.'
&& path[11] >= '0' && path[11] <= '7' && path[12] == 0) {
id = path[11] - '0';
bus = path[9] - '0';
m = open_scsi_as_media(bus, id);
}
} else if (strncmp("/dev/ata", path, 8) == 0
|| strncmp("/dev/ide", path, 8) == 0) {
if (path[8] >= '0' && path[8] <= '7' && path[9] == 0) {
bus = path[8] - '0';
m = open_ata_as_media(bus, 0);
} else if (path[8] >= '0' && path[8] <= '7' && path[9] == '.'
&& path[10] >= '0' && path[10] <= '1' && path[11] == 0) {
id = path[10] - '0';
bus = path[8] - '0';
m = open_ata_as_media(bus, id);
}
} else if (strncmp("/dev/sd", path, 7) == 0) {
if (path[7] >= 'a' && path[7] <= 'z' && path[8] == 0) {
id = path[7] - 'a';
m = open_mklinux_scsi_as_media(id, 0);
}
} else if (strncmp("/dev/scd", path, 8) == 0) {
if (path[8] >= '0' && path[8] <= '9' && path[9] == 0) {
id = path[8] - '0';
m = open_mklinux_scsi_as_media(id, 1);
}
} else if (strncmp("/dev/hd", path, 7) == 0) {
if (path[7] >= 'a' && path[7] <= 'z' && path[8] == 0) {
id = path[7] - 'a';
m = open_mklinux_ata_as_media(id);
}
}
} else
#endif
{
m = open_file_as_media(path, oflag);
}
return m;
}
char *
get_mklinux_name(char *path)
{
char *result = 0;
#if !defined(__linux__) && !defined(__unix__)
long id;
long bus;
if (strncmp("/dev/", path, 5) == 0) {
if (strncmp("/dev/scsi", path, 9) == 0) {
if (path[9] >= '0' && path[9] <= '7' && path[10] == 0) {
/* old scsi */
id = path[9] - '0';
result = mklinux_old_scsi_name(id);
} else if (path[9] >= '0' && path[9] <= '7' && path[10] == '.'
&& path[11] >= '0' && path[11] <= '7' && path[12] == 0) {
/* new scsi */
id = path[11] - '0';
bus = path[9] - '0';
result = mklinux_scsi_name(bus, id);
}
} else if (strncmp("/dev/ata", path, 8) == 0
|| strncmp("/dev/ide", path, 8) == 0) {
if (path[8] >= '0' && path[8] <= '7' && path[9] == 0) {
/* ata/ide - master device */
bus = path[8] - '0';
result = mklinux_ata_name(bus, 0);
} else if (path[8] >= '0' && path[8] <= '7' && path[9] == '.'
&& path[10] >= '0' && path[10] <= '1' && path[11] == 0) {
/* ata/ide */
id = path[10] - '0';
bus = path[8] - '0';
result = mklinux_ata_name(bus, id);
}
}
}
#endif
return result;
}
MEDIA_ITERATOR
first_media_kind(long *state)
{
*state = 0;
return next_media_kind(state);
}
MEDIA_ITERATOR
next_media_kind(long *state)
{
MEDIA_ITERATOR result;
long index;
result = 0;
index = *state;
switch (index) {
case 0:
#if defined(__linux__) || defined(__unix__)
result = create_file_iterator();
#endif
index = 1;
if (result != 0) {
break;
}
/* fall through to next interface */
case 1:
#if !defined(__linux__) && !defined(__unix__)
result = create_ata_iterator();
#endif
index = 2;
if (result != 0) {
break;
}
/* fall through to next interface */
case 2:
#if !defined(__linux__) && !defined(__unix__)
result = create_scsi_iterator();
#endif
index = 3;
if (result != 0) {
break;
}
/* fall through to next interface */
case 3:
default:
break;
}
*state = index;
return result;
}
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