| 1 | /**
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| 2 | * \file fsw_posix.h
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| 3 | * POSIX user space host environment header.
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| 4 | */
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| 5 |
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| 6 | /*-
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| 7 | * Copyright (c) 2006 Christoph Pfisterer
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| 8 | *
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| 9 | * Redistribution and use in source and binary forms, with or without
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| 10 | * modification, are permitted provided that the following conditions are
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| 11 | * met:
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| 12 | *
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| 13 | * * Redistributions of source code must retain the above copyright
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| 14 | * notice, this list of conditions and the following disclaimer.
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| 15 | *
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| 16 | * * Redistributions in binary form must reproduce the above copyright
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| 17 | * notice, this list of conditions and the following disclaimer in the
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| 18 | * documentation and/or other materials provided with the
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| 19 | * distribution.
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| 20 | *
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| 21 | * * Neither the name of Christoph Pfisterer nor the names of the
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| 22 | * contributors may be used to endorse or promote products derived
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| 23 | * from this software without specific prior written permission.
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| 24 | *
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| 25 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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| 26 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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| 27 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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| 28 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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| 29 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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| 30 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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| 31 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 32 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 33 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 34 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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| 35 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 36 | */
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| 37 |
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| 38 | #ifndef _FSW_POSIX_H_
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| 39 | #define _FSW_POSIX_H_
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| 40 |
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| 41 | #include "fsw_core.h"
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| 42 |
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| 43 | #include <fcntl.h>
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| 44 | #include <sys/types.h>
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| 45 |
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| 46 |
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| 47 | /**
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| 48 | * POSIX Host: Private per-volume structure.
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| 49 | */
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| 50 |
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| 51 | struct fsw_posix_volume {
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| 52 | struct fsw_volume *vol; //!< FSW volume structure
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| 53 |
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| 54 | int fd; //!< System file descriptor for data access
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| 55 |
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| 56 | };
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| 57 |
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| 58 | /**
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| 59 | * POSIX Host: Private structure for an open file.
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| 60 | */
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| 61 |
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| 62 | struct fsw_posix_file {
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| 63 | struct fsw_posix_volume *pvol; //!< POSIX host volume structure
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| 64 |
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| 65 | struct fsw_shandle shand; //!< FSW handle for this file
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| 66 |
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| 67 | };
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| 68 |
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| 69 | /**
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| 70 | * POSIX Host: Private structure for an open directory.
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| 71 | */
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| 72 |
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| 73 | struct fsw_posix_dir {
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| 74 | struct fsw_posix_volume *pvol; //!< POSIX host volume structure
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| 75 |
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| 76 | struct fsw_shandle shand; //!< FSW handle for this file
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| 77 |
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| 78 | };
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| 79 |
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| 80 |
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| 81 | #define NAME_MAX 4096
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| 82 |
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| 83 | #define DT_UNKNOWN 'u'
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| 84 | #define DT_REG 'r'
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| 85 | #define DT_DIR 'd'
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| 86 | #define DT_LNK 'l'
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| 87 |
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| 88 |
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| 89 | /**
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| 90 | * POSIX Host: Private structure for an open directory.
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| 91 | */
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| 92 |
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| 93 | struct fsw_posix_dirent {
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| 94 | char d_attr; /* file's attribute */
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| 95 | unsigned d_type;
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| 96 | unsigned short int d_time; /* file's time */
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| 97 | unsigned short int d_date; /* file's date */
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| 98 | long d_size; /* file's size */
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| 99 | char d_name[NAME_MAX+1]; /* file's name */
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| 100 | unsigned d_fileno; /* file number/inode */
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| 101 | };
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| 102 | typedef struct fsw_posix_dirent DIR;
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| 103 |
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| 104 | /* functions */
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| 105 |
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| 106 | struct fsw_posix_volume * fsw_posix_mount(const char *path, struct fsw_fstype_table *fstype_table);
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| 107 | int fsw_posix_unmount(struct fsw_posix_volume *pvol);
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| 108 |
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| 109 | struct fsw_posix_file * fsw_posix_open(struct fsw_posix_volume *pvol, const char *path, int flags, mode_t mode);
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| 110 | ssize_t fsw_posix_read(struct fsw_posix_file *file, void *buf, size_t nbytes);
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| 111 | off_t fsw_posix_lseek(struct fsw_posix_file *file, off_t offset, int whence);
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| 112 | int fsw_posix_close(struct fsw_posix_file *file);
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| 113 |
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| 114 | struct fsw_posix_dir * fsw_posix_opendir(struct fsw_posix_volume *pvol, const char *path);
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| 115 | struct fsw_posix_dirent * fsw_posix_readdir(struct fsw_posix_dir *dir);
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| 116 | void fsw_posix_rewinddir(struct fsw_posix_dir *dir);
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| 117 | int fsw_posix_closedir(struct fsw_posix_dir *dir);
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| 118 |
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| 119 |
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| 120 | #endif
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