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root/cebix/BasiliskII/src/Unix/sys_unix.cpp

Comparing BasiliskII/src/Unix/sys_unix.cpp (file contents):
Revision 1.3 by cebix, 1999-10-14T11:37:47Z vs.
Revision 1.33 by asvitkine, 2010-10-19T03:21:52Z

#	Line 1 | Line 1
1		/*
2		*  sys_unix.cpp - System dependent routines, Unix implementation
3		*
4	<	*  Basilisk II (C) 1997-1999 Christian Bauer
4	>	*  Basilisk II (C) Christian Bauer
5		*
6		*  This program is free software; you can redistribute it and/or modify
7		*  it under the terms of the GNU General Public License as published by
#	Line 24 | Line 24
24		#include <sys/stat.h>
25		#include <errno.h>
26
27	+	#ifdef HAVE_AVAILABILITYMACROS_H
28	+	#include <AvailabilityMacros.h>
29	+	#endif
30	+
31		#ifdef __linux__
32	+	#include <sys/mount.h>
33		#include <linux/cdrom.h>
34		#include <linux/fd.h>
35		#include <linux/major.h>
36		#include <linux/kdev_t.h>
37	<	#include <linux/unistd.h>
38	<
34	<	#ifdef __NR__llseek
35	<	_syscall5(int, _llseek, uint, fd, ulong, hi, ulong, lo, loff_t *, res, uint, wh);
36	<	#else
37	<	static int _llseek(uint fd, ulong hi, ulong lo, loff_t *res, uint wh)
38	<	{
39	<	if (hi)
40	<	return -1;
41	<	*res = lseek(fd, lo, wh);
42	<	if (*res == -1)
43	<	return -1;
44	<	return 0;
45	<	}
46	<	#endif
37	>	#include <dirent.h>
38	>	#include <limits.h>
39		#endif
40
41		#if defined(__FreeBSD__) || defined(__NetBSD__)
42		#include <sys/cdio.h>
43		#endif
44
45	+	#if defined __APPLE__ && defined __MACH__
46	+	#include <sys/disk.h>
47	+	#if (defined AQUA || defined HAVE_FRAMEWORK_COREFOUNDATION)
48	+	#ifndef __MACOSX__
49	+	#define __MACOSX__ MAC_OS_X_VERSION_MIN_REQUIRED
50	+	#endif
51	+	#endif
52	+	#endif
53	+
54		#include "main.h"
55		#include "macos_util.h"
56		#include "prefs.h"
57		#include "user_strings.h"
58		#include "sys.h"
59
60	+	#if defined(BINCUE)
61	+	#include "bincue_unix.h"
62	+	#endif
63	+
64	+	#if defined(HAVE_LIBVHD)
65	+	#include "vhd_unix.h"
66	+	#endif
67	+
68	+
69		#define DEBUG 0
70		#include "debug.h"
71
62	–
72		// File handles are pointers to these structures
73		struct file_handle {
74	<	char *name;             // Copy of device/file name
74	>	char *name;             // Copy of device/file name
75		int fd;
76	+
77		bool is_file;           // Flag: plain file or /dev/something?
78		bool is_floppy;         // Flag: floppy device
79		bool is_cdrom;          // Flag: CD-ROM device
80		bool read_only;         // Copy of Sys_open() flag
81	+
82		loff_t start_byte;      // Size of file header (if any)
83		loff_t file_size;       // Size of file data (only valid if is_file is true)
84
85	+	bool is_media_present;          // Flag: media is inserted and available
86	+
87		#if defined(__linux__)
88		int cdrom_cap;          // CD-ROM capability flags (only valid if is_cdrom is true)
89		#elif defined(__FreeBSD__)
90		struct ioc_capability cdrom_cap;
91	+	#elif defined(__APPLE__) && defined(__MACH__)
92	+	char *ioctl_name;       // For CDs on OS X - a device for special ioctls
93	+	int ioctl_fd;
94	+	#endif
95	+
96	+	#if defined(BINCUE)
97	+	bool is_bincue;         // Flag: BIN CUE file
98	+	void *bincue_fd;
99		#endif
100	+
101	+	#if defined(HAVE_LIBVHD)
102	+	bool is_vhd;            // Flag: VHD file
103	+	void *vhd_fd;
104	+	#endif
105	+	};
106	+
107	+	// Open file handles
108	+	struct open_file_handle {
109	+	file_handle *fh;
110	+	open_file_handle *next;
111		};
112	+	static open_file_handle *open_file_handles = NULL;
113
114		// File handle of first floppy drive (for SysMountFirstFloppy())
115		static file_handle *first_floppy = NULL;
116
117	+	// Prototypes
118	+	static void cdrom_close(file_handle *fh);
119	+	static bool cdrom_open(file_handle *fh, const char *path = NULL);
120	+
121
122		/*
123		*  Initialization
#	Line 88 | Line 125 | static file_handle *first_floppy = NULL;
125
126		void SysInit(void)
127		{
128	+	#if defined __MACOSX__
129	+	extern void DarwinSysInit(void);
130	+	DarwinSysInit();
131	+	#endif
132		}
133
134
#	Line 97 | Line 138 | void SysInit(void)
138
139		void SysExit(void)
140		{
141	+	#if defined __MACOSX__
142	+	extern void DarwinSysExit(void);
143	+	DarwinSysExit();
144	+	#endif
145	+	}
146	+
147	+
148	+	/*
149	+	*  Manage open file handles
150	+	*/
151	+
152	+	static void sys_add_file_handle(file_handle *fh)
153	+	{
154	+	open_file_handle *p = new open_file_handle;
155	+	p->fh = fh;
156	+	p->next = open_file_handles;
157	+	open_file_handles = p;
158	+	}
159	+
160	+	static void sys_remove_file_handle(file_handle *fh)
161	+	{
162	+	open_file_handle *p = open_file_handles;
163	+	open_file_handle *q = NULL;
164	+
165	+	while (p) {
166	+	if (p->fh == fh) {
167	+	if (q)
168	+	q->next = p->next;
169	+	else
170	+	open_file_handles = p->next;
171	+	delete p;
172	+	break;
173	+	}
174	+	q = p;
175	+	p = p->next;
176	+	}
177	+	}
178	+
179	+
180	+	/*
181	+	*  Account for media that has just arrived
182	+	*/
183	+
184	+	void SysMediaArrived(const char *path, int type)
185	+	{
186	+	// Replace the "cdrom" entry (we are polling, it's unique)
187	+	if (type == MEDIA_CD && !PrefsFindBool("nocdrom"))
188	+	PrefsReplaceString("cdrom", path);
189	+
190	+	// Wait for media to be available for reading
191	+	if (open_file_handles) {
192	+	const int MAX_WAIT = 5;
193	+	for (int i = 0; i < MAX_WAIT; i++) {
194	+	if (access(path, R_OK) == 0)
195	+	break;
196	+	switch (errno) {
197	+	case ENOENT: // Unlikely
198	+	case EACCES: // MacOS X is mounting the media
199	+	sleep(1);
200	+	continue;
201	+	}
202	+	printf("WARNING: Cannot access %s (%s)\n", path, strerror(errno));
203	+	return;
204	+	}
205	+	}
206	+
207	+	for (open_file_handle *p = open_file_handles; p != NULL; p = p->next) {
208	+	file_handle * const fh = p->fh;
209	+
210	+	// Re-open CD-ROM device
211	+	if (fh->is_cdrom && type == MEDIA_CD) {
212	+	cdrom_close(fh);
213	+	if (cdrom_open(fh, path)) {
214	+	fh->is_media_present = true;
215	+	MountVolume(fh);
216	+	}
217	+	}
218	+	}
219	+	}
220	+
221	+
222	+	/*
223	+	*  Account for media that has just been removed
224	+	*/
225	+
226	+	void SysMediaRemoved(const char *path, int type)
227	+	{
228	+	if ((type & MEDIA_REMOVABLE) != MEDIA_CD)
229	+	return;
230	+
231	+	for (open_file_handle *p = open_file_handles; p != NULL; p = p->next) {
232	+	file_handle * const fh = p->fh;
233	+
234	+	// Mark media as not available
235	+	if (!fh->is_cdrom || !fh->is_media_present)
236	+	continue;
237	+	if (fh->name && strcmp(fh->name, path) == 0) {
238	+	fh->is_media_present = false;
239	+	break;
240	+	}
241	+	#if defined __MACOSX__
242	+	if (fh->ioctl_name && strcmp(fh->ioctl_name, path) == 0) {
243	+	fh->is_media_present = false;
244	+	break;
245	+	}
246	+	#endif
247	+	}
248		}
249
250
#	Line 119 | Line 267 | void SysMountFirstFloppy(void)
267		void SysAddFloppyPrefs(void)
268		{
269		#if defined(__linux__)
270	<	PrefsAddString("floppy", "/dev/fd0H1440");
271	<	PrefsAddString("floppy", "/dev/fd1H1440");
270	>	DIR *fd_dir = opendir("/dev/floppy");
271	>	if (fd_dir) {
272	>	struct dirent *floppy_dev;
273	>	while ((floppy_dev = readdir(fd_dir)) != NULL) {
274	>	if (strstr(floppy_dev->d_name, "u1440") != NULL) {
275	>	char fd_dev[20];
276	>	sprintf(fd_dev, "/dev/floppy/%s", floppy_dev->d_name);
277	>	PrefsAddString("floppy", fd_dev);
278	>	}
279	>	}
280	>	closedir(fd_dir);
281	>	} else {
282	>	PrefsAddString("floppy", "/dev/fd0");
283	>	PrefsAddString("floppy", "/dev/fd1");
284	>	}
285		#elif defined(__NetBSD__)
286		PrefsAddString("floppy", "/dev/fd0a");
287		PrefsAddString("floppy", "/dev/fd1a");
288	+	#elif defined(__APPLE__) && defined(__MACH__)
289	+	#if defined(AQUA) || defined(HAVE_FRAMEWORK_COREFOUNDATION)
290	+	extern  void DarwinAddFloppyPrefs(void);
291	+
292	+	DarwinAddFloppyPrefs();
293	+	#else
294	+	// Until I can convince the other guys that my Darwin code is useful,
295	+	// we just add something safe (a non-existant device):
296	+	PrefsAddString("floppy", "/dev/null");
297	+	#endif
298		#else
299		PrefsAddString("floppy", "/dev/fd0");
300		PrefsAddString("floppy", "/dev/fd1");
#	Line 134 | Line 305 | void SysAddFloppyPrefs(void)
305		/*
306		*  This gets called when no "disk" prefs items are found
307		*  It scans for available HFS volumes and adds appropriate prefs items
308	+	*      On OS X, we could do the same, but on an OS X machine I think it is
309	+	*      very unlikely that any mounted volumes would contain a system which
310	+	*      is old enough to boot a 68k Mac, so we just do nothing here for now.
311		*/
312
313		void SysAddDiskPrefs(void)
#	Line 145 | Line 319 | void SysAddDiskPrefs(void)
319		while(fgets(line, 255, f)) {
320		// Read line
321		int len = strlen(line);
322	<	if (len == 0)
322	>	if (len == 0 || line[0] == '#')
323		continue;
324		line[len-1] = 0;
325
#	Line 175 | Line 349 | void SysAddCDROMPrefs(void)
349		return;
350
351		#if defined(__linux__)
352	<	PrefsAddString("cdrom", "/dev/cdrom");
353	<	#elif defined(__FreeBSD__)
352	>	if (access("/dev/.devfsd", F_OK) < 0)
353	>	PrefsAddString("cdrom", "/dev/cdrom");
354	>	else {
355	>	DIR *cd_dir = opendir("/dev/cdroms");
356	>	if (cd_dir) {
357	>	struct dirent *cdrom_dev;
358	>	while ((cdrom_dev = readdir(cd_dir)) != NULL) {
359	>	if (strcmp(cdrom_dev->d_name, ".") != 0 && strcmp(cdrom_dev->d_name, "..") != 0) {
360	>	char cd_dev[20];
361	>	sprintf(cd_dev, "/dev/cdroms/%s", cdrom_dev->d_name);
362	>	PrefsAddString("cdrom", cd_dev);
363	>	}
364	>	}
365	>	closedir(cd_dir);
366	>	}
367	>	}
368	>	#elif defined __MACOSX__
369	>	// There is no predefined path for CD-ROMs on MacOS X. Rather, we
370	>	// define a single fake CD-ROM entry for the emulated MacOS.
371	>	// XXX this means we handle only CD-ROM drive at a time, wherever
372	>	// the disk is, the latest one is used.
373	>	PrefsAddString("cdrom", "/dev/poll/cdrom");
374	>	#elif defined(__FreeBSD__) || defined(__NetBSD__)
375		PrefsAddString("cdrom", "/dev/cd0c");
181	–	#elif defined(__NetBSD__)
182	–	PrefsAddString("cdrom", "/dev/cd0d");
376		#endif
377		}
378
#	Line 191 | Line 384 | void SysAddCDROMPrefs(void)
384		void SysAddSerialPrefs(void)
385		{
386		#if defined(__linux__)
387	<	PrefsAddString("seriala", "/dev/ttyS0");
388	<	PrefsAddString("serialb", "/dev/ttyS1");
387	>	if (access("/dev/.devfsd", F_OK) < 0) {
388	>	PrefsAddString("seriala", "/dev/ttyS0");
389	>	PrefsAddString("serialb", "/dev/ttyS1");
390	>	} else {
391	>	PrefsAddString("seriala", "/dev/tts/0");
392	>	PrefsAddString("serialb", "/dev/tts/1");
393	>	}
394		#elif defined(__FreeBSD__)
395		PrefsAddString("seriala", "/dev/cuaa0");
396		PrefsAddString("serialb", "/dev/cuaa1");
397		#elif defined(__NetBSD__)
398		PrefsAddString("seriala", "/dev/tty00");
399		PrefsAddString("serialb", "/dev/tty01");
400	+	#elif defined(__APPLE__) && defined(__MACH__)
401	+	#if defined(AQUA) || defined(HAVE_FRAMEWORK_COREFOUNDATION)
402	+	extern  void DarwinAddSerialPrefs(void);
403	+
404	+	DarwinAddSerialPrefs();
405	+	#else
406	+	// Until I can convince the other guys that my Darwin code is useful,
407	+	// we just add something safe (non-existant devices):
408	+	PrefsAddString("seriala", "/dev/null");
409	+	PrefsAddString("serialb", "/dev/null");
410	+	#endif
411	+	#endif
412	+	}
413	+
414	+
415	+	/*
416	+	*  Open CD-ROM device and initialize internal data
417	+	*/
418	+
419	+	static bool cdrom_open_1(file_handle *fh)
420	+	{
421	+	#if defined __MACOSX__
422	+	// In OS X, the device name is OK for sending ioctls to,
423	+	// but not for reading raw CDROM data from.
424	+	// (it seems to have extra data padded in)
425	+	//
426	+	// So, we keep the already opened file handle,
427	+	// and open a slightly different file for CDROM data
428	+	//
429	+	fh->ioctl_fd = fh->fd;
430	+	fh->ioctl_name = fh->name;
431	+	fh->fd = -1;
432	+	fh->name = (char *)malloc(strlen(fh->ioctl_name) + 3);
433	+	if (fh->name) {
434	+	strcpy(fh->name, fh->ioctl_name);
435	+	strcat(fh->name, "s1");
436	+	fh->fd = open(fh->name, O_RDONLY, O_NONBLOCK);
437	+	}
438	+	if (fh->ioctl_fd < 0)
439	+	return false;
440	+	#endif
441	+	return true;
442	+	}
443	+
444	+	bool cdrom_open(file_handle *fh, const char *path)
445	+	{
446	+	if (path)
447	+	fh->name = strdup(path);
448	+	fh->fd = open(fh->name, O_RDONLY, O_NONBLOCK);
449	+	fh->start_byte = 0;
450	+	if (!cdrom_open_1(fh))
451	+	return false;
452	+	return fh->fd >= 0;
453	+	}
454	+
455	+
456	+	/*
457	+	*  Close a CD-ROM device
458	+	*/
459	+
460	+	void cdrom_close(file_handle *fh)
461	+	{
462	+
463	+	if (fh->fd >= 0) {
464	+	close(fh->fd);
465	+	fh->fd = -1;
466	+	}
467	+	if (fh->name) {
468	+	free(fh->name);
469	+	fh->name = NULL;
470	+	}
471	+	#if defined __MACOSX__
472	+	if (fh->ioctl_fd >= 0) {
473	+	close(fh->ioctl_fd);
474	+	fh->ioctl_fd = -1;
475	+	}
476	+	if (fh->ioctl_name) {
477	+	free(fh->ioctl_name);
478	+	fh->ioctl_name = NULL;
479	+	}
480		#endif
481		}
482
#	Line 240 | Line 518 | static bool is_drive_mounted(const char
518		/*
519		*  Open file/device, create new file handle (returns NULL on error)
520		*/
521	+
522	+	static file_handle *open_filehandle(const char *name)
523	+	{
524	+	file_handle *fh = new file_handle;
525	+	memset(fh, 0, sizeof(file_handle));
526	+	fh->name = strdup(name);
527	+	fh->fd = -1;
528	+	#if defined __MACOSX__
529	+	fh->ioctl_fd = -1;
530	+	fh->ioctl_name = NULL;
531	+	#endif
532	+	return fh;
533	+	}
534
535		void *Sys_open(const char *name, bool read_only)
536		{
#	Line 250 | Line 541 | void *Sys_open(const char *name, bool re
541		#else
542		bool is_cdrom = strncmp(name, "/dev/cd", 7) == 0;
543		#endif
544	+	bool is_floppy = strncmp(name, "/dev/fd", 7) == 0;
545	+
546	+	bool is_polled_media = strncmp(name, "/dev/poll/", 10) == 0;
547	+	if (is_floppy) // Floppy open fails if there's no disk inserted
548	+	is_polled_media = true;
549	+
550	+	#if defined __MACOSX__
551	+	// There is no set filename in /dev which is the cdrom,
552	+	// so we have to see if it is any of the devices that we found earlier
553	+	{
554	+	int index = 0;
555	+	const char *str;
556	+	while ((str = PrefsFindString("cdrom", index++)) != NULL) {
557	+	if (is_polled_media || strcmp(str, name) == 0) {
558	+	is_cdrom = true;
559	+	read_only = true;
560	+	break;
561	+	}
562	+	}
563	+	}
564	+	#endif
565
566		D(bug("Sys_open(%s, %s)\n", name, read_only ? "read-only" : "read/write"));
567
#	Line 272 | Line 584 | void *Sys_open(const char *name, bool re
584		}
585
586		// Open file/device
587	<	#if defined(__linux__)
587	>
588	>	#if defined(BINCUE)
589	>	void *binfd = open_bincue(name);
590	>	if (binfd) {
591	>	file_handle *fh = open_filehandle(name);
592	>	D(bug("opening %s as bincue\n", name));
593	>	fh->bincue_fd = binfd;
594	>	fh->is_bincue = true;
595	>	fh->read_only = true;
596	>	fh->is_media_present = true;
597	>	sys_add_file_handle(fh);
598	>	return fh;
599	>	}
600	>	#endif
601	>
602	>
603	>	#if defined(HAVE_LIBVHD)
604	>	int vhdsize;
605	>	void *vhdfd = vhd_unix_open(name, &vhdsize, read_only);
606	>	if (vhdfd) {
607	>	file_handle *fh = open_filehandle(name);
608	>	D(bug("opening %s as vnd\n", name));
609	>	fh->is_vhd = true;
610	>	fh->vhd_fd = vhdfd;
611	>	fh->read_only = read_only;
612	>	fh->file_size = vhdsize;
613	>	fh->is_media_present = true;
614	>	sys_add_file_handle(fh);
615	>	return fh;
616	>	}
617	>	#endif
618	>
619	>	#if defined(__linux__) || defined(__FreeBSD__) || defined(__NetBSD__) || defined(__MACOSX__)
620		int fd = open(name, (read_only ? O_RDONLY : O_RDWR) | (is_cdrom ? O_NONBLOCK : 0));
621		#else
622		int fd = open(name, read_only ? O_RDONLY : O_RDWR);
#	Line 282 | Line 626 | void *Sys_open(const char *name, bool re
626		read_only = true;
627		fd = open(name, O_RDONLY);
628		}
629	<	if (fd >= 0) {
630	<	file_handle *fh = new file_handle;
287	<	fh->name = strdup(name);
629	>	if (fd >= 0 || is_polled_media) {
630	>	file_handle *fh = open_filehandle(name);
631		fh->fd = fd;
632		fh->is_file = is_file;
633		fh->read_only = read_only;
634	<	fh->start_byte = 0;
635	<	fh->is_floppy = false;
293	<	fh->is_cdrom = false;
634	>	fh->is_floppy = is_floppy;
635	>	fh->is_cdrom = is_cdrom;
636		if (fh->is_file) {
637	+	fh->is_media_present = true;
638		// Detect disk image file layout
639		loff_t size = 0;
297	–	#if defined(__linux__)
298	–	_llseek(fh->fd, 0, 0, &size, SEEK_END);
299	–	#else
640		size = lseek(fd, 0, SEEK_END);
301	–	#endif
641		uint8 data[256];
642		lseek(fd, 0, SEEK_SET);
643		read(fd, data, 256);
#	Line 306 | Line 645 | void *Sys_open(const char *name, bool re
645		} else {
646		struct stat st;
647		if (fstat(fd, &st) == 0) {
648	+	fh->is_media_present = true;
649		if (S_ISBLK(st.st_mode)) {
650		fh->is_cdrom = is_cdrom;
651		#if defined(__linux__)
#	Line 316 | Line 656 | void *Sys_open(const char *name, bool re
656		if (fh->cdrom_cap < 0)
657		fh->cdrom_cap = 0;
658		}
319	–	#else
320	–	fh->cdrom_cap = 0;
659		#endif
660	<	#elif defined(__FreeBSD__) || defined(__NetBSD__)
660	>	#elif defined(__FreeBSD__)
661		fh->is_floppy = ((st.st_rdev >> 16) == 2);
662		#ifdef CDIOCCAPABILITY
663		if (is_cdrom) {
664		if (ioctl(fh->fd, CDIOCCAPABILITY, &fh->cdrom_cap) < 0)
665		memset(&fh->cdrom_cap, 0, sizeof(fh->cdrom_cap));
666		}
329	–	#else
330	–	fh->cdrom_cap = 0;
667		#endif
668	+	#elif defined(__NetBSD__)
669	+	fh->is_floppy = ((st.st_rdev >> 16) == 2);
670		#endif
671		}
672	+	#if defined __MACOSX__
673	+	if (is_cdrom) {
674	+	fh->is_cdrom = true;
675	+	fh->is_floppy = false;
676	+	if (cdrom_open_1(fh))
677	+	fh->is_media_present = true;
678	+	}
679	+	#endif
680		}
681		}
682		if (fh->is_floppy && first_floppy == NULL)
683		first_floppy = fh;
684	+	sys_add_file_handle(fh);
685		return fh;
686		} else {
687		printf("WARNING: Cannot open %s (%s)\n", name, strerror(errno));
#	Line 353 | Line 700 | void Sys_close(void *arg)
700		if (!fh)
701		return;
702
703	<	close(fh->fd);
703	>	sys_remove_file_handle(fh);
704	>
705	>	#if defined(HAVE_LIBVHD)
706	>	if (fh->is_vhd)
707	>	vhd_unix_close(fh->vhd_fd);
708	>	#endif
709	>
710	>	#if defined(BINCUE)
711	>	if (fh->is_bincue)
712	>	close_bincue(fh->bincue_fd);
713	>	#endif
714	>
715	>	if (fh->is_cdrom)
716	>	cdrom_close(fh);
717	>	if (fh->fd >= 0)
718	>	close(fh->fd);
719		if (fh->name)
720		free(fh->name);
721		delete fh;
#	Line 371 | Line 733 | size_t Sys_read(void *arg, void *buffer,
733		if (!fh)
734		return 0;
735
736	+	#if defined(BINCUE)
737	+	if (fh->is_bincue)
738	+	return read_bincue(fh->bincue_fd, buffer, offset, length);
739	+	#endif
740	+
741	+	#if defined(HAVE_LIBVHD)
742	+	if (fh->is_vhd)
743	+	return vhd_unix_read(fh->vhd_fd, buffer, offset, length);
744	+	#endif
745	+
746		// Seek to position
375	–	#if defined(__linux__)
376	–	loff_t pos = offset + fh->start_byte, res;
377	–	if (_llseek(fh->fd, pos >> 32, pos, &res, SEEK_SET) < 0)
378	–	return 0;
379	–	#else
747		if (lseek(fh->fd, offset + fh->start_byte, SEEK_SET) < 0)
748		return 0;
382	–	#endif
749
750		// Read data
751		return read(fh->fd, buffer, length);
#	Line 397 | Line 763 | size_t Sys_write(void *arg, void *buffer
763		if (!fh)
764		return 0;
765
766	+	#if defined(HAVE_LIBVHD)
767	+	if (fh->is_vhd)
768	+	return vhd_unix_write(fh->vhd_fd, buffer, offset, length);
769	+	#endif
770	+
771		// Seek to position
401	–	#if defined(__linux__)
402	–	loff_t pos = offset + fh->start_byte, res;
403	–	if (_llseek(fh->fd, pos >> 32, pos, &res, SEEK_SET) < 0)
404	–	return 0;
405	–	#else
772		if (lseek(fh->fd, offset + fh->start_byte, SEEK_SET) < 0)
773		return 0;
408	–	#endif
774
775		// Write data
776		return write(fh->fd, buffer, length);
#	Line 422 | Line 787 | loff_t SysGetFileSize(void *arg)
787		if (!fh)
788		return true;
789
790	+	#if defined(BINCUE)
791	+	if (fh->is_bincue)
792	+	return size_bincue(fh->bincue_fd);
793	+	#endif
794	+
795	+	#if defined(HAVE_LIBVHD)
796	+	if (fh->is_vhd)
797	+	return fh->file_size;
798	+	#endif
799	+
800		if (fh->is_file)
801		return fh->file_size;
802		else {
803	+	long blocks;
804		#if defined(__linux__)
805	<	loff_t pos = 0;
806	<	_llseek(fh->fd, 0, 0, &pos, SEEK_END);
807	<	return pos - fh->start_byte;
805	>	if (ioctl(fh->fd, BLKGETSIZE, &blocks) < 0)
806	>	return 0;
807	>	D(bug(" BLKGETSIZE returns %d blocks\n", blocks));
808	>	return (loff_t)blocks * 512;
809	>	#elif defined __MACOSX__
810	>	uint32 block_size;
811	>	if (ioctl(fh->ioctl_fd, DKIOCGETBLOCKSIZE, &block_size) < 0)
812	>	return 0;
813	>	D(bug(" DKIOCGETBLOCKSIZE returns %lu bytes\n", (unsigned long)block_size));
814	>	uint64 block_count;
815	>	if (ioctl(fh->ioctl_fd, DKIOCGETBLOCKCOUNT, &block_count) < 0)
816	>	return 0;
817	>	D(bug(" DKIOCGETBLOCKCOUNT returns %llu blocks\n", (unsigned long long)block_count));
818	>	return block_count * block_size;
819		#else
820		return lseek(fh->fd, 0, SEEK_END) - fh->start_byte;
821		#endif
#	Line 448 | Line 835 | void SysEject(void *arg)
835
836		#if defined(__linux__)
837		if (fh->is_floppy) {
838	<	fsync(fh->fd);
839	<	ioctl(fh->fd, FDFLUSH);
840	<	ioctl(fh->fd, FDEJECT);
838	>	if (fh->fd >= 0) {
839	>	fsync(fh->fd);
840	>	ioctl(fh->fd, FDFLUSH);
841	>	ioctl(fh->fd, FDEJECT);
842	>	close(fh->fd);  // Close and reopen so the driver will see the media change
843	>	}
844	>	fh->fd = open(fh->name, fh->read_only ? O_RDONLY : O_RDWR);
845		} else if (fh->is_cdrom) {
846		ioctl(fh->fd, CDROMEJECT);
847		close(fh->fd);  // Close and reopen so the driver will see the media change
#	Line 459 | Line 850 | void SysEject(void *arg)
850		#elif defined(__FreeBSD__) || defined(__NetBSD__)
851		if (fh->is_floppy) {
852		fsync(fh->fd);
462	–	//ioctl(fh->fd, FDFLUSH);
463	–	//ioctl(fh->fd, FDEJECT);
853		} else if (fh->is_cdrom) {
854		ioctl(fh->fd, CDIOCEJECT);
855		close(fh->fd);  // Close and reopen so the driver will see the media change
856		fh->fd = open(fh->name, O_RDONLY | O_NONBLOCK);
857		}
858	+	#elif defined(__APPLE__) && defined(__MACH__)
859	+	if (fh->is_cdrom && fh->is_media_present) {
860	+	close(fh->fd);
861	+	fh->fd = -1;
862	+	if (ioctl(fh->ioctl_fd, DKIOCEJECT) < 0) {
863	+	D(bug(" DKIOCEJECT failed on file %s: %s\n",
864	+	fh->ioctl_name, strerror(errno)));
865	+
866	+	// If we are running MacOS X, the device may be in busy
867	+	// state because the Finder has mounted the disk
868	+	close(fh->ioctl_fd);
869	+	fh->ioctl_fd = -1;
870	+
871	+	// Try to use "diskutil eject" but it can take up to 5
872	+	// seconds to complete
873	+	static const char eject_cmd[] = "/usr/sbin/diskutil eject %s 2>&1 >/dev/null";
874	+	char *cmd = (char *)alloca(strlen(eject_cmd) + strlen(fh->ioctl_name) + 1);
875	+	sprintf(cmd, eject_cmd, fh->ioctl_name);
876	+	system(cmd);
877	+	}
878	+	fh->is_media_present = false;
879	+	}
880		#endif
881		}
882
#	Line 497 | Line 908 | bool SysIsReadOnly(void *arg)
908
909		#if defined(__linux__)
910		if (fh->is_floppy) {
911	<	struct floppy_drive_struct stat;
912	<	ioctl(fh->fd, FDGETDRVSTAT, &stat);
913	<	return !(stat.flags & FD_DISK_WRITABLE);
911	>	if (fh->fd >= 0) {
912	>	struct floppy_drive_struct stat;
913	>	ioctl(fh->fd, FDGETDRVSTAT, &stat);
914	>	return !(stat.flags & FD_DISK_WRITABLE);
915	>	} else
916	>	return true;
917		} else
918		#endif
919		return fh->read_only;
#	Line 516 | Line 930 | bool SysIsFixedDisk(void *arg)
930		if (!fh)
931		return true;
932
933	+	#if defined(HAVE_LIBVHD)
934	+	if (fh->is_vhd)
935	+	return true;
936	+	#endif
937	+
938		if (fh->is_file)
939		return true;
940		else if (fh->is_floppy || fh->is_cdrom)
#	Line 535 | Line 954 | bool SysIsDiskInserted(void *arg)
954		if (!fh)
955		return false;
956
957	+	#if defined(HAVE_LIBVHD)
958	+	if (fh->is_vhd)
959	+	return true;
960	+	#endif
961	+
962		if (fh->is_file) {
963		return true;
964
#	Line 542 | Line 966 | bool SysIsDiskInserted(void *arg)
966		} else if (fh->is_floppy) {
967		char block[512];
968		lseek(fh->fd, 0, SEEK_SET);
969	<	return read(fh->fd, block, 512) == 512;
969	>	ssize_t actual = read(fh->fd, block, 512);
970	>	if (actual < 0) {
971	>	close(fh->fd);  // Close and reopen so the driver will see the media change
972	>	fh->fd = open(fh->name, fh->read_only ? O_RDONLY : O_RDWR);
973	>	actual = read(fh->fd, block, 512);
974	>	}
975	>	return actual == 512;
976		} else if (fh->is_cdrom) {
977	+	#ifdef CDROM_MEDIA_CHANGED
978	+	if (fh->cdrom_cap & CDC_MEDIA_CHANGED) {
979	+	// If we don't do this, all attempts to read from a disc fail
980	+	// once the tray has been opened (altough the TOC reads fine).
981	+	// Can somebody explain this to me?
982	+	if (ioctl(fh->fd, CDROM_MEDIA_CHANGED) == 1) {
983	+	close(fh->fd);
984	+	fh->fd = open(fh->name, O_RDONLY | O_NONBLOCK);
985	+	}
986	+	}
987	+	#endif
988		#ifdef CDROM_DRIVE_STATUS
989		if (fh->cdrom_cap & CDC_DRIVE_STATUS) {
990		return ioctl(fh->fd, CDROM_DRIVE_STATUS, CDSL_CURRENT) == CDS_DISC_OK;
#	Line 557 | Line 998 | bool SysIsDiskInserted(void *arg)
998		} else if (fh->is_cdrom) {
999		struct ioc_toc_header header;
1000		return ioctl(fh->fd, CDIOREADTOCHEADER, &header) == 0;
1001	+	#elif defined __MACOSX__
1002	+	} else if (fh->is_cdrom || fh->is_floppy) {
1003	+	return fh->is_media_present;
1004		#endif
1005
1006		} else
#	Line 608 | Line 1052 | bool SysCDReadTOC(void *arg, uint8 *toc)
1052		if (!fh)
1053		return false;
1054
1055	+	#if defined(BINCUE)
1056	+	if (fh->is_bincue)
1057	+	return readtoc_bincue(fh->bincue_fd, toc);
1058	+	#endif
1059	+
1060		if (fh->is_cdrom) {
1061	+
1062		#if defined(__linux__)
1063		uint8 *p = toc + 2;
1064
#	Line 655 | Line 1105 | bool SysCDReadTOC(void *arg, uint8 *toc)
1105		*toc++ = toc_size >> 8;
1106		*toc++ = toc_size & 0xff;
1107		return true;
1108	<	#elif defined(__FreeBSD__) || defined(__NetBSD__)
1108	>	#elif defined __MACOSX__ && defined MAC_OS_X_VERSION_10_2
1109	>	if (fh->is_media_present) {
1110	>	extern bool DarwinCDReadTOC(char *name, uint8 *toc);
1111	>	return DarwinCDReadTOC(fh->name, toc);
1112	>	}
1113	>	return false;
1114	>	#elif defined(__FreeBSD__)
1115		uint8 *p = toc + 2;
1116
1117		// Header
#	Line 701 | Line 1157 | bool SysCDReadTOC(void *arg, uint8 *toc)
1157		*toc++ = toc_size >> 8;
1158		*toc++ = toc_size & 0xff;
1159		return true;
1160	+	#elif defined(__NetBSD__)
1161	+	uint8 *p = toc + 2;
1162	+
1163	+	// Header
1164	+	struct ioc_toc_header header;
1165	+	if (ioctl(fh->fd, CDIOREADTOCHEADER, &header) < 0)
1166	+	return false;
1167	+	*p++ = header.starting_track;
1168	+	*p++ = header.ending_track;
1169	+
1170	+	// Tracks (this is nice... :-)
1171	+	struct ioc_read_toc_entry entries;
1172	+	entries.address_format = CD_MSF_FORMAT;
1173	+	entries.starting_track = 1;
1174	+	entries.data_len = 800;
1175	+	entries.data = (cd_toc_entry *)p;
1176	+	if (ioctl(fh->fd, CDIOREADTOCENTRIES, &entries) < 0)
1177	+	return false;
1178	+
1179	+	// TOC size
1180	+	int toc_size = p - toc;
1181	+	*toc++ = toc_size >> 8;
1182	+	*toc++ = toc_size & 0xff;
1183	+	return true;
1184	+	#else
1185	+	return false;
1186		#endif
1187		} else
1188		return false;
#	Line 717 | Line 1199 | bool SysCDGetPosition(void *arg, uint8 *
1199		if (!fh)
1200		return false;
1201
1202	+	#if defined(BINCUE)
1203	+	if (fh->is_bincue)
1204	+	return GetPosition_bincue(fh->bincue_fd, pos);
1205	+	#endif
1206	+
1207		if (fh->is_cdrom) {
1208		#if defined(__linux__)
1209		cdrom_subchnl chan;
#	Line 764 | Line 1251 | bool SysCDGetPosition(void *arg, uint8 *
1251		*pos++ = chan.data->what.position.reladdr.msf.second;
1252		*pos++ = chan.data->what.position.reladdr.msf.frame;
1253		return true;
1254	+	#else
1255	+	return false;
1256		#endif
1257		} else
1258		return false;
#	Line 780 | Line 1269 | bool SysCDPlay(void *arg, uint8 start_m,
1269		if (!fh)
1270		return false;
1271
1272	+	#if defined(BINCUE)
1273	+	if (fh->is_bincue)
1274	+	return CDPlay_bincue(fh->bincue_fd, start_m, start_s, start_f, end_m, end_s, end_f);
1275	+	#endif
1276	+
1277		if (fh->is_cdrom) {
1278		#if defined(__linux__)
1279		cdrom_msf play;
#	Line 799 | Line 1293 | bool SysCDPlay(void *arg, uint8 start_m,
1293		play.end_s = end_s;
1294		play.end_f = end_f;
1295		return ioctl(fh->fd, CDIOCPLAYMSF, &play) == 0;
1296	+	#else
1297	+	return false;
1298		#endif
1299		} else
1300		return false;
#	Line 815 | Line 1311 | bool SysCDPause(void *arg)
1311		if (!fh)
1312		return false;
1313
1314	+	#if defined(BINCUE)
1315	+	if (fh->is_bincue)
1316	+	return CDPause_bincue(fh->bincue_fd);
1317	+	#endif
1318	+
1319		if (fh->is_cdrom) {
1320		#if defined(__linux__)
1321		return ioctl(fh->fd, CDROMPAUSE) == 0;
1322		#elif defined(__FreeBSD__) || defined(__NetBSD__)
1323		return ioctl(fh->fd, CDIOCPAUSE) == 0;
1324	+	#else
1325	+	return false;
1326		#endif
1327		} else
1328		return false;
#	Line 836 | Line 1339 | bool SysCDResume(void *arg)
1339		if (!fh)
1340		return false;
1341
1342	+	#if defined(BINCUE)
1343	+	if (fh->is_bincue)
1344	+	return CDResume_bincue(fh->bincue_fd);
1345	+	#endif
1346	+
1347	+
1348		if (fh->is_cdrom) {
1349		#if defined(__linux__)
1350		return ioctl(fh->fd, CDROMRESUME) == 0;
1351		#elif defined(__FreeBSD__) || defined(__NetBSD__)
1352		return ioctl(fh->fd, CDIOCRESUME) == 0;
1353	+	#else
1354	+	return false;
1355		#endif
1356		} else
1357		return false;
#	Line 857 | Line 1368 | bool SysCDStop(void *arg, uint8 lead_out
1368		if (!fh)
1369		return false;
1370
1371	+	#if defined(BINCUE)
1372	+	if (fh->is_bincue)
1373	+	return CDStop_bincue(fh->bincue_fd);
1374	+	#endif
1375	+
1376	+
1377		if (fh->is_cdrom) {
1378		#if defined(__linux__)
1379		return ioctl(fh->fd, CDROMSTOP) == 0;
1380		#elif defined(__FreeBSD__) || defined(__NetBSD__)
1381		return ioctl(fh->fd, CDIOCSTOP) == 0;
1382	+	#else
1383	+	return false;
1384		#endif
1385		} else
1386		return false;

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