src/server/daemon/vfs.c

Wed, 26 Jun 2013 17:14:45 +0200

author
Olaf Wintermann <olaf.wintermann@gmail.com>
date
Wed, 26 Jun 2013 17:14:45 +0200
changeset 80
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parent 72
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child 87
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permissions
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fixed chunked transfer encoding

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1 /*
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2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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3 *
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4 * Copyright 2013 Olaf Wintermann. All rights reserved.
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5 *
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6 * Redistribution and use in source and binary forms, with or without
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7 * modification, are permitted provided that the following conditions are met:
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8 *
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9 * 1. Redistributions of source code must retain the above copyright
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10 * notice, this list of conditions and the following disclaimer.
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11 *
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12 * 2. Redistributions in binary form must reproduce the above copyright
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13 * notice, this list of conditions and the following disclaimer in the
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14 * documentation and/or other materials provided with the distribution.
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15 *
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16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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26 * POSSIBILITY OF SUCH DAMAGE.
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27 */
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28
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29 #include <stdio.h>
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30 #include <stdlib.h>
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31 #include <unistd.h>
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32 #include <sys/types.h>
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33
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34 #include "../util/pool.h"
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35 #include "../ucx/map.h"
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36 #include "acl.h"
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37 #include "vfs.h"
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38
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39 static UcxMap *vfs_map;
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40
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41 static VFS_IO sys_file_io = {
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42 sys_file_read,
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43 sys_file_write,
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44 sys_file_seek,
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45 sys_file_close
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46 };
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47
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48 static VFS_DIRIO sys_dir_io = {
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49 sys_dir_read,
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50 sys_dir_close
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51 };
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52
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53 int vfs_init() {
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54 vfs_map = ucx_map_new(16);
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55 if(!vfs_map) {
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56 return -1;
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57 }
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58 return 0;
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59 }
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60
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61 void vfs_add(char *name, VFS *vfs) {
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62 if(!vfs_map) {
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63 vfs_init();
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64 }
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65 ucx_map_cstr_put(vfs_map, name, vfs);
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66 }
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67
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68 VFSContext* vfs_request_context(Session *sn, Request *rq) {
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69 VFSContext *ctx = pool_malloc(sn->pool, sizeof(VFSContext));
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70 ctx->sn = sn;
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71 ctx->rq = rq;
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72 ctx->vfs = rq->vfs;
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73 ctx->user = acllist_getuser(sn, rq, rq->acllist);
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74 ctx->acllist = rq->acllist;
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75 ctx->aclreqaccess = rq->aclreqaccess;
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76 ctx->pool = sn->pool;
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77 ctx->vfs_errno = 0;
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78 return ctx;
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79 }
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80
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81 SYS_FILE vfs_open(VFSContext *ctx, char *path, int oflags) {
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82 Session *sn;
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83 Request *rq;
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84 pool_handle_t *pool;
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85 uint32_t access_mask;
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86
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87 if(ctx) {
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88 access_mask = ctx->aclreqaccess;
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89 access_mask |= acl_oflag2mask(oflags);
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90 if(!ctx->pool) {
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91 // TODO: log warning
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92 // broken VFSContext
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93 }
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94 if(ctx->vfs) {
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95 // ctx->aclreqaccess should be the complete access mask
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96 uint32_t m = ctx->aclreqaccess; // save original access mask
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97 ctx->aclreqaccess = access_mask; // set mask for vfs->open call
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98 SYS_FILE file = ctx->vfs->open(ctx, path, oflags);
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99 ctx->aclreqaccess = m; // restore original access mask
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100 return file;
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101 } else {
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102 pool = ctx->pool;
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103 }
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104 } else {
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105 sn = NULL;
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106 rq = NULL;
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107 pool = NULL;
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108 access_mask = acl_oflag2mask(oflags);
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109 }
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110
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111 // check ACLs
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112 SysACL sysacl;
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113 if(sys_acl_check(ctx, access_mask, &sysacl)) {
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114 return NULL;
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115 }
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116
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117 if(sysacl.acl) {
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118 if(!fs_acl_check(&sysacl, ctx->user, path, access_mask)) {
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119 acl_set_error_status(ctx->sn, ctx->rq, sysacl.acl, ctx->user);
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120 return NULL;
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121 }
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122 }
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123
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124 // open file
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125 mode_t mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH;
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126 int fd = open(path, oflags, mode);
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127 if(fd == -1) {
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128 if(ctx) {
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129 ctx->vfs_errno = errno;
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130 sys_set_error_status(ctx);
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131 }
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132 return NULL;
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133 }
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134
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135 // if a file system acl is active, we set the owner for newly created files
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136 if(((oflags & O_CREAT) == O_CREAT) && sysacl.user_uid != -1) {
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137 if(fchown(fd, sysacl.user_uid, sysacl.user_gid)) {
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138 perror("vfs_open: fchown");
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139 close(fd);
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140 return NULL;
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141 }
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142 }
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143
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144
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145 VFSFile *file = pool ?
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146 pool_malloc(pool, sizeof(VFSFile)) : malloc(sizeof(VFSFile));
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147 if(!file) {
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148 close(fd);
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149 return NULL;
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150 }
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151 file->ctx = ctx;
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152 file->data = NULL;
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153 file->fd = fd;
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154 file->io = &sys_file_io;
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155 return file;
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156 }
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157
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158 SYS_FILE vfs_openRO(VFSContext *ctx, char *path) {
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159 return vfs_open(ctx, path, O_RDONLY);
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160 }
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161
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162 SYS_FILE vfs_openWO(VFSContext *ctx, char *path) {
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163 return vfs_open(ctx, path, O_WRONLY | O_CREAT);
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164 }
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165
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166 SYS_FILE vfs_openRW(VFSContext *ctx, char *path) {
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167 return vfs_open(ctx, path, O_RDONLY | O_WRONLY | O_CREAT);
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168 }
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169
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170 int vfs_stat(VFSContext *ctx, char *path, struct stat *buf) {
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171 Session *sn;
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172 Request *rq;
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173 uint32_t access_mask;
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174
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175 if(ctx) {
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176 access_mask = ctx->aclreqaccess;
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177 access_mask |= ACL_READ_ATTRIBUTES;
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178 if(!ctx->pool) {
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179 // TODO: log warning
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180 // broken VFSContext
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181 }
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182 if(ctx->vfs) {
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183 // ctx->aclreqaccess should be the complete access mask
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184 uint32_t m = ctx->aclreqaccess; // save original access mask
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185 ctx->aclreqaccess = access_mask; // set mask for vfs->fstat call
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186 int ret = ctx->vfs->stat(ctx, path, buf);
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187 ctx->aclreqaccess = m; // restore original access mask
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188 return ret;
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189 }
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190 } else {
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191 sn = NULL;
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192 rq = NULL;
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193 access_mask = ACL_READ_ATTRIBUTES;
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194 }
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195
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196 // check ACLs
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197 SysACL sysacl;
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198 if(sys_acl_check(ctx, access_mask, &sysacl)) {
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199 return -1;
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200 }
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201
63
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202 if(sysacl.acl) {
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203 if(!fs_acl_check(&sysacl, ctx->user, path, access_mask)) {
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204 acl_set_error_status(ctx->sn, ctx->rq, sysacl.acl, ctx->user);
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205 return -1;
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206 }
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207 }
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208
54
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209 // stat
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210 if(stat(path, buf)) {
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211 if(ctx) {
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212 ctx->vfs_errno = errno;
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213 sys_set_error_status(ctx);
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214 }
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215 return -1;
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216 }
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217
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218 return 0;
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219 }
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220
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221 int vfs_fstat(VFSContext *ctx, SYS_FILE fd, struct stat *buf) {
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222 if(ctx) {
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223 if(!ctx->pool) {
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224 // TODO: log warning
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225 // broken VFSContext
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226 }
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227 if(ctx->vfs) {
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228 return ctx->vfs->fstat(ctx, fd, buf);
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229 }
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230 }
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231
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232 // stat
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233 if(fstat(fd->fd, buf)) {
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234 if(ctx) {
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235 ctx->vfs_errno = errno;
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236 }
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237 return -1;
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238 }
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239
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240 return 0;
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241 }
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242
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243 void vfs_close(SYS_FILE fd) {
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244 fd->io->close(fd);
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245 if(fd->ctx) {
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246 pool_free(fd->ctx->pool, fd);
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247 } else {
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248 free(fd);
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249 }
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250 }
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251
55
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252 VFS_DIR vfs_opendir(VFSContext *ctx, char *path) {
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253 Session *sn;
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254 Request *rq;
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255 pool_handle_t *pool;
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256 uint32_t access_mask;
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257
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258 if(ctx) {
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259 access_mask = ctx->aclreqaccess;
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260 access_mask |= ACL_LIST;
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261 if(!ctx->pool) {
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262 // TODO: log warning
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263 // broken VFSContext
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264 }
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265 if(ctx->vfs) {
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266 // ctx->aclreqaccess should be the complete access mask
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267 uint32_t m = ctx->aclreqaccess; // save original access mask
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268 ctx->aclreqaccess = access_mask; // set mask for vfs->opendir call
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269 VFS_DIR dir = ctx->vfs->opendir(ctx, path);
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270 ctx->aclreqaccess = m; // restore original access mask
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271 return dir;
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272 } else {
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273 pool = ctx->pool;
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274 }
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275 } else {
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276 sn = NULL;
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277 rq = NULL;
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278 pool = NULL;
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279 access_mask = ACL_LIST;
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280 }
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281
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282 // check ACLs
63
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283 SysACL sysacl;
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284 if(sys_acl_check(ctx, access_mask, &sysacl)) {
55
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285 return NULL;
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286 }
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diff changeset
287
63
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288 if(sysacl.acl) {
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diff changeset
289 if(!fs_acl_check(&sysacl, ctx->user, path, access_mask)) {
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diff changeset
290 acl_set_error_status(ctx->sn, ctx->rq, sysacl.acl, ctx->user);
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291 return NULL;
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292 }
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293 }
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diff changeset
294
72
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295 // open directory
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diff changeset
296 #ifdef BSD
69
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297 DIR *sys_dir = opendir(path);
72
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298 if(sys_dir) {
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299 int dir_fd = dirfd(sys_dir);
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300 }
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301 #else
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302 int dir_fd = open(path, O_RDONLY);
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diff changeset
303 if(dir_fd == -1) {
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304 if(ctx) {
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305 ctx->vfs_errno = errno;
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306 sys_set_error_status(ctx);
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307 }
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308 return NULL;
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309 }
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310 DIR *sys_dir = fdopendir(dir_fd);
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311 #endif
55
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312 if(!sys_dir) {
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313 if(ctx) {
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314 ctx->vfs_errno = errno;
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315 sys_set_error_status(ctx);
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316 }
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317 return NULL;
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318 }
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319
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320 VFSDir *dir = pool ?
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321 pool_malloc(pool, sizeof(VFSDir)) : malloc(sizeof(VFSDir));
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322 if(!dir) {
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323 closedir(sys_dir);
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324 return NULL;
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325 }
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326 dir->ctx = ctx;
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327 dir->data = sys_dir;
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328 dir->fd = dir_fd;
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329 dir->io = &sys_dir_io;
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330 return dir;
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331 }
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332
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333 int vfs_readdir(VFS_DIR dir, VFS_ENTRY *entry) {
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334 return dir->io->readdir(dir, entry, 0);
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335 }
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336
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337 int vfs_readdir_stat(VFS_DIR dir, VFS_ENTRY *entry) {
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338 return dir->io->readdir(dir, entry, 1);
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339 }
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340
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341 void vfs_closedir(VFS_DIR dir) {
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342 dir->io->close(dir);
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343 if(dir->ctx) {
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344 pool_free(dir->ctx->pool, dir);
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345 } else {
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346 free(dir);
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347 }
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348 }
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349
56
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350 int vfs_mkdir(VFSContext *ctx, char *path) {
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351 if(ctx && ctx->vfs) {
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352 return vfs_path_op(ctx, path, ctx->vfs->mkdir, ACL_ADD_FILE);
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353 } else {
63
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354 return sys_path_op(ctx, path, sys_mkdir, ACL_ADD_FILE);
56
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355 }
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356 }
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357
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diff changeset
358 int vfs_unlink(VFSContext *ctx, char *path) {
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359 if(ctx && ctx->vfs) {
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360 return vfs_path_op(ctx, path, ctx->vfs->unlink, ACL_DELETE);
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361 } else {
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362 return sys_path_op(ctx, path, sys_unlink, ACL_DELETE);
56
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363 }
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diff changeset
364 }
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diff changeset
365
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366
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367 // private
56
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diff changeset
368 int vfs_path_op(VFSContext *ctx, char *path, vfs_op_f op, uint32_t access) {
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369 Session *sn;
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370 Request *rq;
63
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diff changeset
371
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372 uint32_t access_mask = ctx->aclreqaccess;
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373 access_mask |= access;
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diff changeset
374 if(!ctx->pool) {
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diff changeset
375 // TODO: log warning
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diff changeset
376 // broken VFSContext
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377 return -1;
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diff changeset
378 }
56
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diff changeset
379
63
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diff changeset
380 // ctx->aclreqaccess should be the complete access mask
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diff changeset
381 uint32_t m = ctx->aclreqaccess; // save original access mask
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diff changeset
382 ctx->aclreqaccess = access_mask; // set mask for vfs function call
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diff changeset
383 int ret = op(ctx, path);
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diff changeset
384 ctx->aclreqaccess = m; // restore original access mask
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385 return ret;
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diff changeset
386 }
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diff changeset
387
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diff changeset
388 int sys_path_op(VFSContext *ctx, char *path, sys_op_f op, uint32_t access) {
56
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diff changeset
389 if(ctx) {
63
66442f81f823 supports file system ACLs on Solaris
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diff changeset
390 access |= ctx->aclreqaccess;
56
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391 }
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diff changeset
392
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diff changeset
393 // check ACLs
63
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diff changeset
394 SysACL sysacl;
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diff changeset
395 if(sys_acl_check(ctx, access, &sysacl)) {
57
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diff changeset
396 return -1;
56
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diff changeset
397 }
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diff changeset
398
63
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diff changeset
399 if(sysacl.acl) {
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diff changeset
400 if(!fs_acl_check(&sysacl, ctx->user, path, access)) {
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diff changeset
401 acl_set_error_status(ctx->sn, ctx->rq, sysacl.acl, ctx->user);
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diff changeset
402 return -1;
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parents: 59
diff changeset
403 }
66442f81f823 supports file system ACLs on Solaris
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parents: 59
diff changeset
404 }
66442f81f823 supports file system ACLs on Solaris
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parents: 59
diff changeset
405
56
c6cf20b09043 added vfs_mkdir and vfs_unlink
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diff changeset
406 // do path operation
63
66442f81f823 supports file system ACLs on Solaris
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diff changeset
407 if(op(ctx, path, &sysacl)) {
56
c6cf20b09043 added vfs_mkdir and vfs_unlink
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diff changeset
408 // error
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diff changeset
409 if(ctx) {
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diff changeset
410 ctx->vfs_errno = errno;
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diff changeset
411 sys_set_error_status(ctx);
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diff changeset
412 }
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diff changeset
413 return -1;
c6cf20b09043 added vfs_mkdir and vfs_unlink
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parents: 55
diff changeset
414 }
c6cf20b09043 added vfs_mkdir and vfs_unlink
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parents: 55
diff changeset
415
c6cf20b09043 added vfs_mkdir and vfs_unlink
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diff changeset
416 return 0;
c6cf20b09043 added vfs_mkdir and vfs_unlink
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diff changeset
417 }
54
3a1d5a52adfc new vfs api
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parents:
diff changeset
418
63
66442f81f823 supports file system ACLs on Solaris
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diff changeset
419 int sys_acl_check(VFSContext *ctx, uint32_t access_mask, SysACL *sysacl) {
67
50505dc3f8a6 dynamic thread pool
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diff changeset
420 if(sysacl) {
50505dc3f8a6 dynamic thread pool
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diff changeset
421 sysacl->acl = NULL;
50505dc3f8a6 dynamic thread pool
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diff changeset
422 }
54
3a1d5a52adfc new vfs api
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parents:
diff changeset
423 if(!ctx) {
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parents:
diff changeset
424 return 0;
3a1d5a52adfc new vfs api
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parents:
diff changeset
425 }
3a1d5a52adfc new vfs api
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parents:
diff changeset
426
3a1d5a52adfc new vfs api
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parents:
diff changeset
427 ACLListHandle *acllist = ctx->acllist;
3a1d5a52adfc new vfs api
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parents:
diff changeset
428 if(acllist) {
63
66442f81f823 supports file system ACLs on Solaris
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parents: 59
diff changeset
429 ACLList *acl = acl_evallist(
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diff changeset
430 acllist,
66442f81f823 supports file system ACLs on Solaris
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diff changeset
431 ctx->user,
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diff changeset
432 access_mask,
66442f81f823 supports file system ACLs on Solaris
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diff changeset
433 &sysacl->acl);
66442f81f823 supports file system ACLs on Solaris
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parents: 59
diff changeset
434
66442f81f823 supports file system ACLs on Solaris
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parents: 59
diff changeset
435 if(acl) {
66442f81f823 supports file system ACLs on Solaris
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parents: 59
diff changeset
436 acl_set_error_status(ctx->sn, ctx->rq, acl, ctx->user);
66442f81f823 supports file system ACLs on Solaris
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parents: 59
diff changeset
437 return 1;
54
3a1d5a52adfc new vfs api
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parents:
diff changeset
438 }
3a1d5a52adfc new vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
439 }
3a1d5a52adfc new vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
440
3a1d5a52adfc new vfs api
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parents:
diff changeset
441 return 0;
3a1d5a52adfc new vfs api
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parents:
diff changeset
442 }
3a1d5a52adfc new vfs api
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parents:
diff changeset
443
3a1d5a52adfc new vfs api
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parents:
diff changeset
444 void sys_set_error_status(VFSContext *ctx) {
3a1d5a52adfc new vfs api
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parents:
diff changeset
445 if(ctx->sn && ctx->rq) {
56
c6cf20b09043 added vfs_mkdir and vfs_unlink
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diff changeset
446 int status = util_errno2status(ctx->vfs_errno);
54
3a1d5a52adfc new vfs api
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parents:
diff changeset
447 protocol_status(ctx->sn, ctx->rq, status, NULL);
3a1d5a52adfc new vfs api
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parents:
diff changeset
448 }
3a1d5a52adfc new vfs api
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parents:
diff changeset
449 }
3a1d5a52adfc new vfs api
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parents:
diff changeset
450
3a1d5a52adfc new vfs api
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parents:
diff changeset
451 ssize_t sys_file_read(SYS_FILE fd, void *buf, size_t nbyte) {
3a1d5a52adfc new vfs api
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parents:
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452 return read(fd->fd, buf, nbyte);
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parents:
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453 }
3a1d5a52adfc new vfs api
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parents:
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454
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
455 ssize_t sys_file_write(SYS_FILE fd, const void *buf, size_t nbyte) {
3a1d5a52adfc new vfs api
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parents:
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456 return write(fd->fd, buf, nbyte);
3a1d5a52adfc new vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
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457 }
3a1d5a52adfc new vfs api
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parents:
diff changeset
458
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74babc0082b7 added authentication cache
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459 off_t sys_file_seek(SYS_FILE fd, off_t offset, int whence) {
74babc0082b7 added authentication cache
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460 return lseek(fd->fd, offset, whence);
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461 }
74babc0082b7 added authentication cache
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462
54
3a1d5a52adfc new vfs api
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463 void sys_file_close(SYS_FILE fd) {
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464 close(fd->fd);
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465 }
55
b7908bf38f9f vfs can read directories
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466
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diff changeset
467 int sys_dir_read(VFS_DIR dir, VFS_ENTRY *entry, int getstat) {
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parents: 54
diff changeset
468 struct dirent *e = readdir(dir->data);
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469 if(e) {
58
66c22e54aa90 webdav uses the vfs api
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470 char *name = e->d_name;
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diff changeset
471 if(!strcmp(name, ".") || !strcmp(name, "..")) {
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472 return sys_dir_read(dir, entry, getstat);
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473 } else {
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474 entry->name = name;
69
4a10bc0ee80d compiles on os x
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475 #ifndef OSX
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476 /* TODO:
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477 * implement alternative for fstat for OS X and other crappy
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478 * Unices
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479 */
58
66c22e54aa90 webdav uses the vfs api
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480 if(getstat) {
66c22e54aa90 webdav uses the vfs api
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481 // TODO: check ACLs again for new path
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482 if(fstatat(dir->fd, e->d_name, &entry->stat, 0)) {
66c22e54aa90 webdav uses the vfs api
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diff changeset
483 entry->stat_errno = errno;
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484 }
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diff changeset
485 entry->stat_extra = NULL;
55
b7908bf38f9f vfs can read directories
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486 }
69
4a10bc0ee80d compiles on os x
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487 #endif
58
66c22e54aa90 webdav uses the vfs api
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488 return 1;
55
b7908bf38f9f vfs can read directories
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parents: 54
diff changeset
489 }
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diff changeset
490 } else {
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491 return 0;
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diff changeset
492 }
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parents: 54
diff changeset
493 }
b7908bf38f9f vfs can read directories
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parents: 54
diff changeset
494
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diff changeset
495 void sys_dir_close(VFS_DIR dir) {
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diff changeset
496 closedir(dir->data);
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diff changeset
497 }
56
c6cf20b09043 added vfs_mkdir and vfs_unlink
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parents: 55
diff changeset
498
63
66442f81f823 supports file system ACLs on Solaris
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parents: 59
diff changeset
499 int sys_mkdir(VFSContext *ctx, char *path, SysACL *sysacl) {
56
c6cf20b09043 added vfs_mkdir and vfs_unlink
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 55
diff changeset
500 mode_t mode = S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH;
63
66442f81f823 supports file system ACLs on Solaris
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parents: 59
diff changeset
501 int ret = mkdir(path, mode);
66442f81f823 supports file system ACLs on Solaris
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 59
diff changeset
502 if(ret == 0) {
66442f81f823 supports file system ACLs on Solaris
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diff changeset
503 if(sysacl->user_uid != -1) {
66442f81f823 supports file system ACLs on Solaris
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parents: 59
diff changeset
504 if(chown(path, sysacl->user_uid, sysacl->user_gid)) {
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parents: 59
diff changeset
505 // TODO: error
66442f81f823 supports file system ACLs on Solaris
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parents: 59
diff changeset
506 }
66442f81f823 supports file system ACLs on Solaris
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 59
diff changeset
507 }
66442f81f823 supports file system ACLs on Solaris
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 59
diff changeset
508 }
66442f81f823 supports file system ACLs on Solaris
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 59
diff changeset
509 return ret;
56
c6cf20b09043 added vfs_mkdir and vfs_unlink
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 55
diff changeset
510 }
c6cf20b09043 added vfs_mkdir and vfs_unlink
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 55
diff changeset
511
63
66442f81f823 supports file system ACLs on Solaris
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parents: 59
diff changeset
512 int sys_unlink(VFSContext *ctx, char *path, SysACL *sysacl) {
56
c6cf20b09043 added vfs_mkdir and vfs_unlink
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 55
diff changeset
513 return unlink(path);
c6cf20b09043 added vfs_mkdir and vfs_unlink
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 55
diff changeset
514 }
58
66c22e54aa90 webdav uses the vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 57
diff changeset
515
66c22e54aa90 webdav uses the vfs api
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parents: 57
diff changeset
516 /* public file api */
66c22e54aa90 webdav uses the vfs api
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diff changeset
517
66c22e54aa90 webdav uses the vfs api
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parents: 57
diff changeset
518 NSAPI_PUBLIC int system_fread(SYS_FILE fd, void *buf, int nbyte) {
66c22e54aa90 webdav uses the vfs api
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parents: 57
diff changeset
519 return fd->io->read(fd, buf, nbyte);
66c22e54aa90 webdav uses the vfs api
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parents: 57
diff changeset
520 }
66c22e54aa90 webdav uses the vfs api
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parents: 57
diff changeset
521
66c22e54aa90 webdav uses the vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 57
diff changeset
522 NSAPI_PUBLIC int system_fwrite(SYS_FILE fd, const void *buf, int nbyte) {
66c22e54aa90 webdav uses the vfs api
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parents: 57
diff changeset
523 return fd->io->write(fd, buf, nbyte);
66c22e54aa90 webdav uses the vfs api
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parents: 57
diff changeset
524 }
66c22e54aa90 webdav uses the vfs api
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parents: 57
diff changeset
525
66
74babc0082b7 added authentication cache
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 63
diff changeset
526 NSAPI_PUBLIC off_t system_lseek(SYS_FILE fd, off_t offset, int whence) {
74babc0082b7 added authentication cache
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 63
diff changeset
527 return fd->io->seek(fd, offset, whence);
74babc0082b7 added authentication cache
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 63
diff changeset
528 }
74babc0082b7 added authentication cache
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 63
diff changeset
529
58
66c22e54aa90 webdav uses the vfs api
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parents: 57
diff changeset
530 NSAPI_PUBLIC int system_fclose(SYS_FILE fd) {
66c22e54aa90 webdav uses the vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 57
diff changeset
531 vfs_close(fd);
66c22e54aa90 webdav uses the vfs api
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parents: 57
diff changeset
532 return 0;
66c22e54aa90 webdav uses the vfs api
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parents: 57
diff changeset
533 }

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