source/smbd/vfs-wrap.c

   1 /*
   2    Unix SMB/Netbios implementation.
   3    Version 1.9.
   4 s   Wrap disk only vfs functions to sidestep dodgy compilers.
   5    Copyright (C) Tim Potter 1998
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20 */
  21
  22 #include "includes.h"
  23
  24 /* Check for NULL pointer parameters in vfswrap_* functions */
  25
  26 #define VFS_CHECK_NULL
  27
  28 /* We don't want to have NULL function pointers lying around.  Someone
  29    is sure to try and execute them.  These stubs are used to prevent
  30    this possibility. */
  31
  32 int vfswrap_dummy_connect(struct vfs_connection_struct *conn, char *service,
  33                           char *user)
  34 {
  35     return 0;    /* Return >= 0 for success */
  36 }
  37
  38 void vfswrap_dummy_disconnect(void)
  39 {
  40 }
  41
  42 /* Disk operations */
  43
  44 SMB_BIG_UINT vfswrap_disk_free(char *path, BOOL small_query, SMB_BIG_UINT *bsize,
  45                                SMB_BIG_UINT *dfree, SMB_BIG_UINT *dsize)
  46 {
  47     SMB_BIG_UINT result;
  48
  49 #ifdef VFS_CHECK_NULL
  50     if ((path == NULL) || (bsize == NULL) || (dfree == NULL) ||
  51         (dsize == NULL)) {
  52
  53         smb_panic("NULL pointer passed to vfswrap_disk_free() function\n");
  54     }
  55 #endif
  56
  57     result = sys_disk_free(path, small_query, bsize, dfree, dsize);
  58     return result;
  59 }
  60
  61 /* Directory operations */
  62
  63 DIR *vfswrap_opendir(char *fname)
  64 {
  65     DIR *result;
  66
  67 #ifdef VFS_CHECK_NULL
  68     if (fname == NULL) {
  69         smb_panic("NULL pointer passed to vfswrap_opendir()\n");
  70     }
  71 #endif
  72
  73     result = opendir(fname);
  74     return result;
  75 }
  76
  77 struct dirent *vfswrap_readdir(DIR *dirp)
  78 {
  79     struct dirent *result;
  80
  81 #ifdef VFS_CHECK_NULL
  82     if (dirp == NULL) {
  83         smb_panic("NULL pointer passed to vfswrap_readdir()\n");
  84     }
  85 #endif
  86
  87     result = readdir(dirp);
  88     return result;
  89 }
  90
  91 int vfswrap_mkdir(char *path, mode_t mode)
  92 {
  93     int result;
  94
  95 #ifdef VFS_CHECK_NULL
  96     if (path == NULL) {
  97         smb_panic("NULL pointer passed to vfswrap_mkdir()\n");
  98     }
  99 #endif
 100
 101     result = mkdir(path, mode);
 102     return result;
 103 }
 104
 105 int vfswrap_rmdir(char *path)
 106 {
 107     int result;
 108
 109 #ifdef VFS_CHECK_NULL
 110     if (path == NULL) {
 111         smb_panic("NULL pointer passed to vfswrap_rmdir()\n");
 112     }
 113 #endif
 114
 115     result = rmdir(path);
 116     return result;
 117 }
 118
 119 int vfswrap_closedir(DIR *dirp)
 120 {
 121     int result;
 122
 123 #ifdef VFS_CHECK_NULL
 124     if (dirp == NULL) {
 125         smb_panic("NULL pointer passed to vfswrap_closedir()\n");
 126     }
 127 #endif
 128
 129     result = closedir(dirp);
 130     return result;
 131 }
 132
 133 /* File operations */
 134
 135 int vfswrap_open(char *fname, int flags, mode_t mode)
 136 {
 137     int result;
 138
 139 #ifdef VFS_CHECK_NULL
 140     if (fname == NULL) {
 141         smb_panic("NULL pointer passed to vfswrap_open()\n");
 142     }
 143 #endif
 144
 145     result = sys_open(fname, flags, mode);
 146     return result;
 147 }
 148
 149 int vfswrap_close(int fd)
 150 {
 151     int result;
 152
 153     result = close(fd);
 154     return result;
 155 }
 156
 157 ssize_t vfswrap_read(int fd, char *data, size_t n)
 158 {
 159     ssize_t result;
 160
 161 #ifdef VFS_CHECK_NULL
 162     if (data == NULL) {
 163         smb_panic("NULL pointer passed to vfswrap_read()\n");
 164     }
 165 #endif
 166
 167     result = read(fd, data, n);
 168     return result;
 169 }
 170
 171 ssize_t vfswrap_write(int fd, char *data, size_t n)
 172 {
 173     ssize_t result;
 174
 175 #ifdef VFS_CHECK_NULL
 176     if (data == NULL) {
 177         smb_panic("NULL pointer passed to vfswrap_write()\n");
 178     }
 179 #endif
 180
 181     result = write(fd, data, n);
 182     return result;
 183 }
 184
 185 SMB_OFF_T vfswrap_lseek(int filedes, SMB_OFF_T offset, int whence)
 186 {
 187     SMB_OFF_T result;
 188
 189     result = sys_lseek(filedes, offset, whence);
 190     return result;
 191 }
 192
 193 int vfswrap_rename(char *old, char *new)
 194 {
 195     int result;
 196
 197 #ifdef VFS_CHECK_NULL
 198     if ((old == NULL) || (new == NULL)) {
 199         smb_panic("NULL pointer passed to vfswrap_rename()\n");
 200     }
 201 #endif
 202
 203     result = rename(old, new);
 204     return result;
 205 }
 206
 207 int vfswrap_fsync(int fd)
 208 {
 209 #ifdef HAVE_FSYNC
 210     return fsync(fd);
 211 #else
 212         return 0;
 213 #endif
 214 }
 215
 216 int vfswrap_stat(char *fname, SMB_STRUCT_STAT *sbuf)
 217 {
 218     int result;
 219
 220 #ifdef VFS_CHECK_NULL
 221     if ((fname == NULL) || (sbuf == NULL)) {
 222         smb_panic("NULL pointer passed to vfswrap_stat()\n");
 223     }
 224 #endif
 225
 226     result = sys_stat(fname, sbuf);
 227     return result;
 228 }
 229
 230 int vfswrap_fstat(int fd, SMB_STRUCT_STAT *sbuf)
 231 {
 232     int result;
 233
 234 #ifdef VFS_CHECK_NULL
 235     if (sbuf == NULL) {
 236         smb_panic("NULL pointer passed to vfswrap_fstat()\n");
 237     }
 238 #endif
 239
 240     result = sys_fstat(fd, sbuf);
 241     return result;
 242 }
 243
 244 int vfswrap_lstat(char *path,
 245                   SMB_STRUCT_STAT *sbuf)
 246 {
 247     int result;
 248
 249 #ifdef VFS_CHECK_NULL
 250     if ((path == NULL) || (sbuf == NULL)) {
 251         smb_panic("NULL pointer passed to vfswrap_lstat()\n");
 252     }
 253 #endif
 254
 255     result = sys_lstat(path, sbuf);
 256     return result;
 257 }
 258
 259 int vfswrap_unlink(char *path)
 260 {
 261     int result;
 262
 263 #ifdef VFS_CHECK_NULL
 264     if (path == NULL) {
 265         smb_panic("NULL pointer passed to vfswrap_unlink()\n");
 266     }
 267 #endif
 268
 269     result = unlink(path);
 270     return result;
 271 }
 272
 273 int vfswrap_chmod(char *path, mode_t mode)
 274 {
 275     int result;
 276
 277 #ifdef VFS_CHECK_NULL
 278     if (path == NULL) {
 279         smb_panic("NULL pointer passed to vfswrap_chmod()\n");
 280     }
 281 #endif
 282
 283     result = chmod(path, mode);
 284     return result;
 285 }
 286
 287 int vfswrap_utime(char *path, struct utimbuf *times)
 288 {
 289     int result;
 290
 291 #ifdef VFS_CHECK_NULL
 292     if ((path == NULL) || (times == NULL)) {
 293         smb_panic("NULL pointer passed to vfswrap_utime()\n");
 294     }
 295 #endif
 296
 297     result = utime(path, times);
 298     return result;
 299 }
 300
 301 int vfswrap_ftruncate(int fd, SMB_OFF_T offset)
 302 {
 303     int result;
 304
 305     result = sys_ftruncate(fd, offset);
 306     return result;
 307 }