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1.1 root 1: /* filewrap.h */
2:
3: /* File system-call wrappers */
4:
5: /* $Id: filewrap.h,v 1.21 2004/08/31 08:21:16 deuce Exp $ */
6:
7: /****************************************************************************
8: * @format.tab-size 4 (Plain Text/Source Code File Header) *
9: * @format.use-tabs true (see http://www.synchro.net/ptsc_hdr.html) *
10: * *
11: * Copyright 2004 Rob Swindell - http://www.synchro.net/copyright.html *
12: * *
13: * This library is free software; you can redistribute it and/or *
14: * modify it under the terms of the GNU Lesser General Public License *
15: * as published by the Free Software Foundation; either version 2 *
16: * of the License, or (at your option) any later version. *
17: * See the GNU Lesser General Public License for more details: lgpl.txt or *
18: * http://www.fsf.org/copyleft/lesser.html *
19: * *
20: * Anonymous FTP access to the most recent released source is available at *
21: * ftp://vert.synchro.net, ftp://cvs.synchro.net and ftp://ftp.synchro.net *
22: * *
23: * Anonymous CVS access to the development source and modification history *
24: * is available at cvs.synchro.net:/cvsroot/sbbs, example: *
25: * cvs -d :pserver:[email protected]:/cvsroot/sbbs login *
26: * (just hit return, no password is necessary) *
27: * cvs -d :pserver:[email protected]:/cvsroot/sbbs checkout src *
28: * *
29: * For Synchronet coding style and modification guidelines, see *
30: * http://www.synchro.net/source.html *
31: * *
32: * You are encouraged to submit any modifications (preferably in Unix diff *
33: * format) via e-mail to [email protected] *
34: * *
35: * Note: If this box doesn't appear square, then you need to fix your tabs. *
36: ****************************************************************************/
37:
38: #ifndef _FILEWRAP_H
39: #define _FILEWRAP_H
40:
41: #include "wrapdll.h" /* DLLEXPORT and DLLCALL */
42:
43: #include <sys/stat.h> /* S_IREAD and S_IWRITE (for use with sopen) */
44: #include <stdio.h>
45:
46: #if defined(__unix__)
47: #include <unistd.h> /* read, write, close, ftruncate, lseek, etc. */
48: #endif
49:
50: #if defined(_WIN32) || defined(__BORLANDC__)
51: #include <io.h>
52: #endif
53:
54: /**********/
55: /* Macros */
56: /**********/
57:
58: #if defined(_WIN32)
59:
60: #include <fcntl.h> /* O_BINARY */
61: #include <windows.h> /* OF_SHARE_ */
62: #include <share.h> /* SH_DENY */
63:
64: #ifndef SH_DENYNO
65: #define SH_DENYNO OF_SHARE_DENY_NONE
66: #define SH_DENYWR OF_SHARE_DENY_WRITE
67: #define SH_DENYRW OF_SHARE_EXCLUSIVE
68: #endif
69:
70: #elif defined(__unix__)
71:
72: #include <fcntl.h>
73: #ifdef __solaris__
74: #define LOCK_NB 1
75: #define LOCK_SH 2
76: #define LOCK_EX 4
77: #endif
78:
79: #ifdef __QNX__
80: #include <share.h>
81: #define L_SET SEEK_SET
82: #else
83: #define O_TEXT 0 /* all files in binary mode on Unix */
84: #define O_BINARY 0 /* all files in binary mode on Unix */
85: #undef O_DENYNONE
86: #define O_DENYNONE (1<<31) /* req'd for Baja/nopen compatibility */
87:
88: #define SH_DENYNO 2 /* no locks */
89: #ifdef F_SANEWRLCKNO
90: #define SH_DENYRW F_SANEWRLCKNO /* exclusive lock */
91: #else
92: #define SH_DENYRW F_WRLCK /* exclusive lock */
93: #endif
94:
95: #ifdef F_SANERDLCKNO
96: #define SH_DENYWR F_SANERDLCKNO /* shareable lock */
97: #else
98: #define SH_DENYWR F_RDLCK /* shareable lock */
99: #endif
100: #endif
101: #define chsize(fd,size) ftruncate(fd,size)
102: #define tell(fd) lseek(fd,0,SEEK_CUR)
103:
104: #elif defined(__OS2__)
105:
106: #include <share.h> /* SH_DENY */
107:
108: #endif
109:
110: /* Standard file descriptors. */
111: #ifndef STDIN_FILENO
112: #define STDIN_FILENO 0 /* Standard input */
113: #define STDOUT_FILENO 1 /* Standard output */
114: #define STDERR_FILENO 2 /* Standard error output */
115: #endif
116:
117: #ifndef O_DENYNONE
118: #define O_DENYNONE SH_DENYNO
119: #endif
120:
121: /**************/
122: /* Prototypes */
123: /**************/
124:
125: #if defined(__cplusplus)
126: extern "C" {
127: #endif
128:
129: #if !defined(__BORLANDC__) && !defined(__WATCOMC__)
130: DLLEXPORT int DLLCALL lock(int fd, long pos, long len);
131: DLLEXPORT int DLLCALL unlock(int fd, long pos, long len);
132: #endif
133:
134: #if !defined(__BORLANDC__) && defined(__unix__)
135: DLLEXPORT int DLLCALL sopen(const char* fn, int access, int share, ...);
136: DLLEXPORT long DLLCALL filelength(int fd);
137: #endif
138:
139: #if defined(__unix__)
140: DLLEXPORT FILE * DLLCALL _fsopen(char *pszFilename, char *pszMode, int shmode);
141: #endif
142:
143: DLLEXPORT time_t DLLCALL filetime(int fd);
144:
145: #if defined(__cplusplus)
146: }
147: #endif
148:
149: #endif /* Don't add anything after this line */
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