2 * Bacula low level File I/O routines. This routine simulates
3 * open(), read(), write(), and close(), but using native routines.
4 * I.e. on Windows, we use Windows APIs.
6 * Kern Sibbald May MMIII
9 Copyright (C) 2003-2005 Kern Sibbald
11 This program is free software; you can redistribute it and/or
12 modify it under the terms of the GNU General Public License
13 version 2 as amended with additional clauses defined in the
14 file LICENSE in the main source directory.
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 the file LICENSE for additional details.
27 #undef _POSIX_C_SOURCE
39 #ifdef USE_WIN32STREAMEXTRACTION
40 typedef struct _PROCESS_WIN32_BACKUPAPIBLOCK_CONTEXT {
41 LONGLONG liNextHeader;
43 WIN32_STREAM_ID header_stream;
44 } PROCESS_WIN32_BACKUPAPIBLOCK_CONTEXT;
47 /* =======================================================
51 * =======================================================
53 #if defined(HAVE_CYGWIN) || defined(HAVE_WIN32)
56 #include "../lib/winapi.h"
60 BF_READ, /* BackupRead */
61 BF_WRITE /* BackupWrite */
66 /* Basic Win32 low level I/O file packet */
68 int use_backup_api; /* set if using BackupRead/Write */
69 int mode; /* set if file is open */
70 HANDLE fh; /* Win32 file handle */
71 int fid; /* fd if doing Unix style */
72 LPVOID lpContext; /* BackupRead/Write context */
73 POOLMEM *errmsg; /* error message buffer */
74 DWORD rw_bytes; /* Bytes read or written */
75 DWORD lerror; /* Last error code */
76 int berrno; /* errno */
77 char *prog; /* reader/writer program if any */
78 JCR *jcr; /* jcr for editing job codes */
79 Python_IO pio; /* Python I/O routines */
80 #ifdef USE_WIN32STREAMEXTRACTION
81 PROCESS_WIN32_BACKUPAPIBLOCK_CONTEXT win32DecompContext; /* context for decomposition of win32 backup streams */
82 int use_backup_decomp; /* set if using BackupRead Stream Decomposition */
86 HANDLE bget_handle(BFILE *bfd);
88 #else /* Linux/Unix systems */
90 /* =======================================================
94 * =======================================================
97 /* Basic Unix low level I/O file packet */
99 int fid; /* file id on Unix */
101 char *prog; /* reader/writer program if any */
102 JCR *jcr; /* jcr for editing job codes */
103 Python_IO pio; /* Python I/O routines */
104 #ifdef USE_WIN32STREAMEXTRACTION
105 PROCESS_WIN32_BACKUPAPIBLOCK_CONTEXT win32DecompContext; /* context for decomposition of win32 backup streams */
106 int use_backup_decomp; /* set if using BackupRead Stream Decomposition */
112 void binit(BFILE *bfd);
113 bool is_bopen(BFILE *bfd);
114 bool set_win32_backup(BFILE *bfd);
115 bool set_portable_backup(BFILE *bfd);
116 bool set_prog(BFILE *bfd, char *prog, JCR *jcr);
117 bool have_win32_api();
118 bool is_portable_backup(BFILE *bfd);
119 bool is_stream_supported(int stream);
120 bool is_win32_stream(int stream);
121 char *xberror(BFILE *bfd); /* DO NOT USE -- use berrno class */
122 int bopen(BFILE *bfd, const char *fname, int flags, mode_t mode);
123 #ifdef HAVE_DARWIN_OS
124 int bopen_rsrc(BFILE *bfd, const char *fname, int flags, mode_t mode);
126 int bclose(BFILE *bfd);
127 ssize_t bread(BFILE *bfd, void *buf, size_t count);
128 ssize_t bwrite(BFILE *bfd, void *buf, size_t count);
129 off_t blseek(BFILE *bfd, off_t offset, int whence);
130 const char *stream_to_ascii(int stream);
132 #ifdef USE_WIN32STREAMEXTRACTION
133 BOOL processWin32BackupAPIBlock (BFILE *bfd, void *pBuffer, size_t dwSize);
136 #endif /* __BFILE_H */