source3/smbwrapper/smbw_stat.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    SMB wrapper stat functions
   4    Copyright (C) Andrew Tridgell 1998
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 2 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program; if not, write to the Free Software
  18    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19 */
  20
  21 #include "includes.h"
  22
  23 extern int smbw_busy;
  24
  25 /*****************************************************
  26 setup basic info in a stat structure
  27 *******************************************************/
  28 void smbw_setup_stat(struct stat *st, char *fname, size_t size, int mode)
  29 {
  30         st->st_mode = 0;
  31
  32         if (IS_DOS_DIR(mode)) {
  33                 st->st_mode = SMBW_DIR_MODE;
  34         } else {
  35                 st->st_mode = SMBW_FILE_MODE;
  36         }
  37
  38         if (IS_DOS_ARCHIVE(mode)) st->st_mode |= S_IXUSR;
  39         if (IS_DOS_SYSTEM(mode)) st->st_mode |= S_IXGRP;
  40         if (IS_DOS_HIDDEN(mode)) st->st_mode |= S_IXOTH;
  41         if (!IS_DOS_READONLY(mode)) st->st_mode |= S_IWUSR;
  42
  43         st->st_size = size;
  44         st->st_blksize = 512;
  45         st->st_blocks = (size+511)/512;
  46         st->st_uid = getuid();
  47         st->st_gid = getgid();
  48         if (IS_DOS_DIR(mode)) {
  49                 st->st_nlink = 2;
  50         } else {
  51                 st->st_nlink = 1;
  52         }
  53         if (st->st_ino == 0) {
  54                 st->st_ino = smbw_inode(fname);
  55         }
  56 }
  57
  58
  59 /*****************************************************
  60 try to do a QPATHINFO and if that fails then do a getatr
  61 this is needed because win95 sometimes refuses the qpathinfo
  62 *******************************************************/
  63 BOOL smbw_getatr(struct smbw_server *srv, char *path,
  64                  uint16 *mode, size_t *size,
  65                  time_t *c_time, time_t *a_time, time_t *m_time,
  66                  SMB_INO_T *ino)
  67 {
  68         DEBUG(4,("sending qpathinfo\n"));
  69
  70         if (!srv->no_pathinfo2 &&
  71             cli_qpathinfo2(&srv->cli, path, c_time, a_time, m_time, NULL,
  72                            size, mode, ino)) return True;
  73
  74         /* if this is NT then don't bother with the getatr */
  75         if (srv->cli.capabilities & CAP_NT_SMBS) return False;
  76
  77         if (cli_getatr(&srv->cli, path, mode, size, m_time)) {
  78                 a_time = c_time = m_time;
  79                 srv->no_pathinfo2 = True;
  80                 return True;
  81         }
  82         return False;
  83 }
  84
  85
  86 static struct print_job_info printjob;
  87
  88 /*****************************************************
  89 gather info from a printjob listing
  90 *******************************************************/
  91 static void smbw_printjob_stat(struct print_job_info *job)
  92 {
  93         if (strcmp(job->name, printjob.name) == 0) {
  94                 printjob = *job;
  95         }
  96 }
  97
  98 /*****************************************************
  99 stat a printjob
 100 *******************************************************/
 101 int smbw_stat_printjob(struct smbw_server *srv,char *path,
 102                        size_t *size, time_t *m_time)
 103 {
 104         if (path[0] == '\\') path++;
 105
 106         ZERO_STRUCT(printjob);
 107
 108         fstrcpy(printjob.name, path);
 109         cli_print_queue(&srv->cli, smbw_printjob_stat);
 110
 111         if (size) {
 112                 *size = printjob.size;
 113         }
 114         if (m_time) {
 115                 *m_time = printjob.t;
 116         }
 117         return printjob.id;
 118 }
 119
 120
 121 /*****************************************************
 122 a wrapper for fstat()
 123 *******************************************************/
 124 int smbw_fstat(int fd, struct stat *st)
 125 {
 126         struct smbw_file *file;
 127         time_t c_time, a_time, m_time;
 128         size_t size;
 129         uint16 mode;
 130         SMB_INO_T ino = 0;
 131
 132         smbw_busy++;
 133
 134         ZERO_STRUCTP(st);
 135
 136         file = smbw_file(fd);
 137         if (!file) {
 138                 int ret = smbw_dir_fstat(fd, st);
 139                 smbw_busy--;
 140                 return ret;
 141         }
 142
 143         if (!cli_qfileinfo(&file->srv->cli, file->f->cli_fd,
 144                            &mode, &size, &c_time, &a_time, &m_time, NULL,
 145                            &ino) &&
 146             !cli_getattrE(&file->srv->cli, file->f->cli_fd,
 147                           &mode, &size, &c_time, &a_time, &m_time)) {
 148                 errno = EINVAL;
 149                 smbw_busy--;
 150                 return -1;
 151         }
 152
 153         st->st_ino = ino;
 154
 155         smbw_setup_stat(st, file->f->fname, size, mode);
 156
 157         st->st_atime = a_time;
 158         st->st_ctime = c_time;
 159         st->st_mtime = m_time;
 160         st->st_dev = file->srv->dev;
 161
 162         smbw_busy--;
 163         return 0;
 164 }
 165
 166
 167 /*****************************************************
 168 a wrapper for stat()
 169 *******************************************************/
 170 int smbw_stat(const char *fname, struct stat *st)
 171 {
 172         struct smbw_server *srv;
 173         fstring server, share;
 174         pstring path;
 175         time_t m_time=0, a_time=0, c_time=0;
 176         size_t size=0;
 177         uint16 mode=0;
 178         SMB_INO_T ino = 0;
 179         int result = 0;
 180
 181         ZERO_STRUCTP(st);
 182
 183         if (!fname) {
 184                 errno = EINVAL;
 185                 return -1;
 186         }
 187
 188         DEBUG(4,("stat(%s)\n", fname));
 189
 190         smbw_init();
 191
 192         smbw_busy++;
 193
 194         /* work out what server they are after */
 195         smbw_parse_path(fname, server, share, path);
 196
 197         /* get a connection to the server */
 198         srv = smbw_server(server, share);
 199         if (!srv) {
 200
 201                 /* For shares we aren't allowed to connect to, or no master
 202                    browser found, return an empty directory */
 203
 204                 if ((server[0] && share[0] && !path[0] && errno == EACCES) ||
 205                     (!path[0] && errno == ENOENT)) {
 206                         mode = aDIR | aRONLY;
 207                         smbw_setup_stat(st, path, size, mode);
 208                         goto done;
 209                 }
 210
 211                 /* smbw_server sets errno */
 212                 result = -1;
 213                 goto done;
 214         }
 215
 216         DEBUG(4,("smbw_stat\n"));
 217
 218         if (strncmp(srv->cli.dev,"IPC",3) == 0) {
 219                 mode = aDIR | aRONLY;
 220         } else if (strncmp(srv->cli.dev,"LPT",3) == 0) {
 221                 if (strcmp(path,"\\") == 0) {
 222                         mode = aDIR | aRONLY;
 223                 } else {
 224                         mode = aRONLY;
 225                         smbw_stat_printjob(srv, path, &size, &m_time);
 226                         c_time = a_time = m_time;
 227                 }
 228         } else {
 229                 if (!smbw_getatr(srv, path,
 230                                  &mode, &size, &c_time, &a_time, &m_time,
 231                                  &ino)) {
 232                         errno = smbw_errno(&srv->cli);
 233                         result = -1;
 234                         goto done;
 235                 }
 236         }
 237
 238         st->st_ino = ino;
 239
 240         smbw_setup_stat(st, path, size, mode);
 241
 242         st->st_atime = a_time;
 243         st->st_ctime = c_time;
 244         st->st_mtime = m_time;
 245         st->st_dev = srv->dev;
 246
 247  done:
 248         smbw_busy--;
 249         return result;
 250 }