source/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 #ifdef HAVE_STAT_ST_BLKSIZE
  45         st->st_blksize = 512;
  46 #endif
  47 #ifdef HAVE_STAT_ST_BLOCKS
  48         st->st_blocks = (size+511)/512;
  49 #endif
  50         st->st_uid = getuid();
  51         st->st_gid = getgid();
  52         if (IS_DOS_DIR(mode)) {
  53                 st->st_nlink = 2;
  54         } else {
  55                 st->st_nlink = 1;
  56         }
  57         if (st->st_ino == 0) {
  58                 st->st_ino = smbw_inode(fname);
  59         }
  60 }
  61
  62
  63 /*****************************************************
  64 try to do a QPATHINFO and if that fails then do a getatr
  65 this is needed because win95 sometimes refuses the qpathinfo
  66 *******************************************************/
  67 BOOL smbw_getatr(struct smbw_server *srv, char *path,
  68                  uint16 *mode, size_t *size,
  69                  time_t *c_time, time_t *a_time, time_t *m_time,
  70                  SMB_INO_T *ino)
  71 {
  72         time_t c_a_m_time;
  73         /*
  74          * "size" (size_t) is only 32 bits.  Rather than change the interface
  75          * in this code as we change cli_qpathinfo2() and cli_getatr() to
  76          * support 64-bit file sizes, we'll use a temporary variable and
  77          * maintain the interface size_t.  At some point, someone may want to
  78          * change the interface as well.  djl
  79          */
  80         SMB_OFF_T fullsize;
  81
  82         DEBUG(4,("sending qpathinfo\n"));
  83
  84         if (!srv->no_pathinfo2 &&
  85             cli_qpathinfo2(&srv->cli, path, c_time, a_time, m_time, NULL,
  86                            &fullsize, mode, ino)) {
  87                 if (size != NULL) *size = (size_t) fullsize;
  88                 return True;
  89         }
  90
  91         /* if this is NT then don't bother with the getatr */
  92         if (srv->cli.capabilities & CAP_NT_SMBS) return False;
  93
  94         if (cli_getatr(&srv->cli, path, mode, &fullsize, &c_a_m_time)) {
  95                 if (a_time != NULL) *a_time = c_a_m_time;
  96                 if (c_time != NULL) *a_time = c_a_m_time;
  97                 if (m_time != NULL) *a_time = c_a_m_time;
  98                 if (size != NULL) *size = (size_t) fullsize;
  99                 srv->no_pathinfo2 = True;
 100                 return True;
 101         }
 102         return False;
 103 }
 104
 105
 106 static struct print_job_info printjob;
 107
 108 /*****************************************************
 109 gather info from a printjob listing
 110 *******************************************************/
 111 static void smbw_printjob_stat(struct print_job_info *job)
 112 {
 113         if (strcmp(job->name, printjob.name) == 0) {
 114                 printjob = *job;
 115         }
 116 }
 117
 118 /*****************************************************
 119 stat a printjob
 120 *******************************************************/
 121 int smbw_stat_printjob(struct smbw_server *srv,char *path,
 122                        size_t *size, time_t *m_time)
 123 {
 124         if (path[0] == '\\') path++;
 125
 126         ZERO_STRUCT(printjob);
 127
 128         fstrcpy(printjob.name, path);
 129         cli_print_queue(&srv->cli, smbw_printjob_stat);
 130
 131         if (size) {
 132                 *size = printjob.size;
 133         }
 134         if (m_time) {
 135                 *m_time = printjob.t;
 136         }
 137         return printjob.id;
 138 }
 139
 140
 141 /*****************************************************
 142 a wrapper for fstat()
 143 *******************************************************/
 144 int smbw_fstat(int fd, struct stat *st)
 145 {
 146         struct smbw_file *file;
 147         time_t c_time, a_time, m_time;
 148         SMB_OFF_T size;
 149         uint16 mode;
 150         SMB_INO_T ino = 0;
 151
 152         smbw_busy++;
 153
 154         ZERO_STRUCTP(st);
 155
 156         file = smbw_file(fd);
 157         if (!file) {
 158                 int ret = smbw_dir_fstat(fd, st);
 159                 smbw_busy--;
 160                 return ret;
 161         }
 162
 163         if (!cli_qfileinfo(&file->srv->cli, file->f->cli_fd,
 164                            &mode, &size, &c_time, &a_time, &m_time, NULL,
 165                            &ino) &&
 166             !cli_getattrE(&file->srv->cli, file->f->cli_fd,
 167                           &mode, &size, &c_time, &a_time, &m_time)) {
 168                 errno = EINVAL;
 169                 smbw_busy--;
 170                 return -1;
 171         }
 172
 173         st->st_ino = ino;
 174
 175         smbw_setup_stat(st, file->f->fname, size, mode);
 176
 177         st->st_atime = a_time;
 178         st->st_ctime = c_time;
 179         st->st_mtime = m_time;
 180         st->st_dev = file->srv->dev;
 181
 182         smbw_busy--;
 183         return 0;
 184 }
 185
 186
 187 /*****************************************************
 188 a wrapper for stat()
 189 *******************************************************/
 190 int smbw_stat(const char *fname, struct stat *st)
 191 {
 192         struct smbw_server *srv;
 193         fstring server, share;
 194         pstring path;
 195         time_t m_time=0, a_time=0, c_time=0;
 196         size_t size=0;
 197         uint16 mode=0;
 198         SMB_INO_T ino = 0;
 199         int result = 0;
 200
 201         ZERO_STRUCTP(st);
 202
 203         if (!fname) {
 204                 errno = EINVAL;
 205                 return -1;
 206         }
 207
 208         DEBUG(4,("stat(%s)\n", fname));
 209
 210         smbw_init();
 211
 212         smbw_busy++;
 213
 214         /* work out what server they are after */
 215         smbw_parse_path(fname, server, share, path);
 216
 217         /* get a connection to the server */
 218         srv = smbw_server(server, share);
 219         if (!srv) {
 220
 221                 /* For shares we aren't allowed to connect to, or no master
 222                    browser found, return an empty directory */
 223
 224                 if ((server[0] && share[0] && !path[0] && errno == EACCES) ||
 225                     (!path[0] && errno == ENOENT)) {
 226                         mode = aDIR | aRONLY;
 227                         smbw_setup_stat(st, path, size, mode);
 228                         goto done;
 229                 }
 230
 231                 /* smbw_server sets errno */
 232                 result = -1;
 233                 goto done;
 234         }
 235
 236         DEBUG(4,("smbw_stat\n"));
 237
 238         if (strncmp(srv->cli.dev,"IPC",3) == 0) {
 239                 mode = aDIR | aRONLY;
 240         } else if (strncmp(srv->cli.dev,"LPT",3) == 0) {
 241                 if (strcmp(path,"\\") == 0) {
 242                         mode = aDIR | aRONLY;
 243                 } else {
 244                         mode = aRONLY;
 245                         smbw_stat_printjob(srv, path, &size, &m_time);
 246                         c_time = a_time = m_time;
 247                 }
 248         } else {
 249                 if (!smbw_getatr(srv, path,
 250                                  &mode, &size, &c_time, &a_time, &m_time,
 251                                  &ino)) {
 252                         errno = smbw_errno(&srv->cli);
 253                         result = -1;
 254                         goto done;
 255                 }
 256         }
 257
 258         st->st_ino = ino;
 259
 260         smbw_setup_stat(st, path, size, mode);
 261
 262         st->st_atime = a_time;
 263         st->st_ctime = c_time;
 264         st->st_mtime = m_time;
 265         st->st_dev = srv->dev;
 266
 267  done:
 268         smbw_busy--;
 269         return result;
 270 }