filewrap.h 4.77 KB
Newer Older
1 2 3 4 5 6
/* File system-call wrappers */

/****************************************************************************
 * @format.tab-size 4		(Plain Text/Source Code File Header)			*
 * @format.use-tabs true	(see http://www.synchro.net/ptsc_hdr.html)		*
 *																			*
7
 * Copyright Rob Swindell - http://www.synchro.net/copyright.html			*
8
 *																			*
9 10
 * This library is free software; you can redistribute it and/or			*
 * modify it under the terms of the GNU Lesser General Public License		*
11 12
 * as published by the Free Software Foundation; either version 2			*
 * of the License, or (at your option) any later version.					*
13 14
 * See the GNU Lesser General Public License for more details: lgpl.txt or	*
 * http://www.fsf.org/copyleft/lesser.html									*
15 16 17 18 19 20 21 22 23 24
 *																			*
 * For Synchronet coding style and modification guidelines, see				*
 * http://www.synchro.net/source.html										*
 *																			*
 * Note: If this box doesn't appear square, then you need to fix your tabs.	*
 ****************************************************************************/

#ifndef _FILEWRAP_H
#define _FILEWRAP_H

25
#include "wrapdll.h"	/* DLLEXPORT */
26
#include "gen_defs.h"	/* int32_t, int64_t */
27

28
#include <sys/stat.h>	/* S_IREAD and S_IWRITE (for use with sopen) */
29
#include <stdio.h>
30

31 32 33 34
#if defined(__unix__)
	#include <unistd.h>	/* read, write, close, ftruncate, lseek, etc. */
#endif

35 36 37 38
#if defined(_WIN32) || defined(__BORLANDC__)
	#include <io.h>
#endif

39 40
#include <fcntl.h>		/* O_RDONLY, O_CREAT, etc. */

41 42 43 44 45 46
/**********/
/* Macros */
/**********/

#if defined(_WIN32)

47
	
48
	#include <windows.h>		/* OF_SHARE_ */
49
	#include <share.h>			/* SH_DENY */
50 51 52 53 54 55 56

	#ifndef SH_DENYNO
	#define SH_DENYNO			OF_SHARE_DENY_NONE
	#define SH_DENYWR			OF_SHARE_DENY_WRITE
	#define SH_DENYRW			OF_SHARE_EXCLUSIVE
	#endif

deuce's avatar
deuce committed
57 58 59 60
	#ifndef SH_COMPAT
	#define SH_COMPAT			0
	#endif

61
	#if defined(_FILE_OFFSET_BITS) && (_FILE_OFFSET_BITS==64)
62 63 64 65 66
		#define	lseek			_lseeki64
		#define	tell			_telli64
		#define filelength		_filelengthi64
		#define	stat			_stati64
		#define	fstat			_fstati64
67 68 69 70 71
		#define fseeko			_fseeki64
		#define ftello			_ftelli64
	#else
		#define fseeko			fseek
		#define ftello			ftell
72 73
	#endif

Deucе's avatar
Deucе committed
74
#ifndef DISABLE_MKSTEMP_DEFINE
75
	#define mkstemp(t)	_open(_mktemp(t), O_RDWR | O_CREAT | O_EXCL)
Deucе's avatar
Deucе committed
76
#endif
Rob Swindell's avatar
Rob Swindell committed
77
#if !defined(__BORLANDC__)
Deucе's avatar
Deucе committed
78
	typedef short unsigned int mode_t;
Rob Swindell's avatar
Rob Swindell committed
79
#endif
80

81 82
#elif defined(__unix__)

deuce's avatar
deuce committed
83 84 85 86 87
	#ifdef __solaris__
		#define LOCK_NB	1
		#define LOCK_SH 2
		#define LOCK_EX 4
	#endif
88

deuce's avatar
deuce committed
89
	#ifdef __QNX__
90
		#include <share.h>
deuce's avatar
deuce committed
91 92
		#define L_SET	SEEK_SET
	#else
93
		#ifndef O_TEXT
deuce's avatar
deuce committed
94 95
		#define O_TEXT		0		/* all files in binary mode on Unix */
		#define O_BINARY	0		/* all files in binary mode on Unix */
96
		#endif
deuce's avatar
deuce committed
97 98 99
		#undef	O_DENYNONE
		#define O_DENYNONE  (1<<31)	/* req'd for Baja/nopen compatibility */

deuce's avatar
Linting  
deuce committed
100
		#define SH_DENYNO	2          /* no locks */
deuce's avatar
deuce committed
101
		#ifdef F_SANEWRLCKNO
deuce's avatar
Linting  
deuce committed
102
			#define SH_DENYRW	F_SANEWRLCKNO	   /* exclusive lock */
deuce's avatar
deuce committed
103
		#else
deuce's avatar
Linting  
deuce committed
104
			#define SH_DENYRW	F_WRLCK	   /* exclusive lock */
deuce's avatar
deuce committed
105
		#endif
106
	
deuce's avatar
deuce committed
107
		#ifdef F_SANERDLCKNO
deuce's avatar
Linting  
deuce committed
108
			#define SH_DENYWR   F_SANERDLCKNO    /* shareable lock */
deuce's avatar
deuce committed
109
		#else
deuce's avatar
Linting  
deuce committed
110
			#define SH_DENYWR   F_RDLCK    /* shareable lock */
deuce's avatar
deuce committed
111
		#endif
deuce's avatar
deuce committed
112 113 114 115

		#ifndef SH_COMPAT
			#define SH_COMPAT			0
		#endif
deuce's avatar
deuce committed
116
	#endif
117 118 119 120 121

	#ifndef DEFFILEMODE
	#define DELFILEMODE			(S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH)
	#endif

122 123
	#define chsize(fd,size)		ftruncate(fd,size)
	#define tell(fd)			lseek(fd,0,SEEK_CUR)
124
	#define eof(fd)				(tell(fd)==filelength(fd))
125

rswindell's avatar
rswindell committed
126 127 128 129 130 131
#elif defined(__OS2__)

	#include <share.h>			/* SH_DENY */

#endif

132 133 134 135
#ifndef DEFFILEMODE
#define DEFFILEMODE			(S_IREAD|S_IWRITE)
#endif

136 137 138 139 140 141 142
/* Standard file descriptors.  */
#ifndef STDIN_FILENO
#define STDIN_FILENO    0       /* Standard input */
#define STDOUT_FILENO   1       /* Standard output */
#define STDERR_FILENO   2       /* Standard error output */
#endif

rswindell's avatar
rswindell committed
143 144
#ifndef O_DENYNONE
#define O_DENYNONE		SH_DENYNO
145 146
#endif

147 148
#define CLOSE_OPEN_FILE(x)	while((x) >= 0) { close(x); (x)=-1; break; }

149 150 151 152
/**************/
/* Prototypes */
/**************/

153
#if defined(__cplusplus)
154 155 156
extern "C" {
#endif

157
#if !defined(__BORLANDC__) && !defined(__WATCOMC__)
158 159
	DLLEXPORT int	lock(int fd, off_t pos, off_t len);
	DLLEXPORT int	unlock(int fd, off_t pos, off_t len);
160 161
#endif

162
#if defined(_WIN32 )
163
	DLLEXPORT long	getdelim(char **linep, size_t *linecapp, int delimiter, FILE *stream);
164 165
#endif

166
#if !defined(__BORLANDC__) && defined(__unix__)
167 168
	DLLEXPORT int		sopen(const char* fn, int sh_access, int share, ...);
	DLLEXPORT off_t		filelength(int fd);
169 170
#endif

171
#if defined(__unix__)
172
	DLLEXPORT FILE * _fsopen(const char *pszFilename, const char *pszMode, int shmode);
173 174
#endif

175
#if defined(_MSC_VER) && (_MSC_VER < 1300)	/* missing prototypes */
176 177
	DLLEXPORT int		_fseeki64(FILE*, int64_t, int origin);
	DLLEXPORT int64_t	_ftelli64(FILE*);
178 179
#endif

180
DLLEXPORT time_t	filetime(int fd);
181

182
#if defined(__cplusplus)
183 184 185 186
}
#endif

#endif	/* Don't add anything after this line */