source3/printing/printfsp.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    printing backend routines for smbd - using files_struct rather
   4    than only snum
   5    Copyright (C) Andrew Tridgell 1992-2000
   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 3 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, see <http://www.gnu.org/licenses/>.
  19 */
  20
  21 #include "includes.h"
  22
  23 /***************************************************************************
  24 open a print file and setup a fsp for it. This is a wrapper around
  25 print_job_start().
  26 ***************************************************************************/
  27
  28 NTSTATUS print_fsp_open(struct smb_request *req, connection_struct *conn,
  29                         const char *fname,
  30                         uint16_t current_vuid, files_struct *fsp)
  31 {
  32         const char *svcname = lp_const_servicename(SNUM(conn));
  33         int jobid;
  34         fstring name;
  35         NTSTATUS status;
  36
  37         fstrcpy( name, "Remote Downlevel Document");
  38         if (fname) {
  39                 const char *p = strrchr(fname, '/');
  40                 fstrcat(name, " ");
  41                 if (!p) {
  42                         p = fname;
  43                 }
  44                 fstrcat(name, p);
  45         }
  46
  47         jobid = print_job_start(conn->server_info, SNUM(conn), name, NULL);
  48         if (jobid == -1) {
  49                 status = map_nt_error_from_unix(errno);
  50                 return status;
  51         }
  52
  53         fsp->print_file = talloc(fsp, struct print_file_data);
  54         if (!fsp->print_file) {
  55                 status = map_nt_error_from_unix(ENOMEM);
  56                 return status;
  57         }
  58
  59         /* Convert to RAP id. */
  60         fsp->print_file->rap_jobid = pjobid_to_rap(svcname, jobid);
  61         if (fsp->print_file->rap_jobid == 0) {
  62                 /* We need to delete the entry in the tdb. */
  63                 pjob_delete(svcname, jobid);
  64                 return NT_STATUS_ACCESS_DENIED; /* No errno around here */
  65         }
  66
  67         status = create_synthetic_smb_fname(fsp,
  68             print_job_fname(svcname, jobid), NULL,
  69             NULL, &fsp->fsp_name);
  70         if (!NT_STATUS_IS_OK(status)) {
  71                 pjob_delete(svcname, jobid);
  72                 return status;
  73         }
  74         /* setup a full fsp */
  75         fsp->fh->fd = print_job_fd(svcname, jobid);
  76         GetTimeOfDay(&fsp->open_time);
  77         fsp->vuid = current_vuid;
  78         fsp->fh->pos = -1;
  79         fsp->can_lock = False;
  80         fsp->can_read = False;
  81         fsp->access_mask = FILE_GENERIC_WRITE;
  82         fsp->can_write = True;
  83         fsp->modified = False;
  84         fsp->oplock_type = NO_OPLOCK;
  85         fsp->sent_oplock_break = NO_BREAK_SENT;
  86         fsp->is_directory = False;
  87         fsp->wcp = NULL;
  88         SMB_VFS_FSTAT(fsp, &fsp->fsp_name->st);
  89         fsp->mode = fsp->fsp_name->st.st_ex_mode;
  90         fsp->file_id = vfs_file_id_from_sbuf(conn, &fsp->fsp_name->st);
  91
  92         return NT_STATUS_OK;
  93 }
  94
  95 /****************************************************************************
  96  Print a file - called on closing the file.
  97 ****************************************************************************/
  98
  99 void print_fsp_end(files_struct *fsp, enum file_close_type close_type)
 100 {
 101         uint32 jobid;
 102
 103         if (fsp->fh->private_options & NTCREATEX_OPTIONS_PRIVATE_DELETE_ON_CLOSE) {
 104                 /*
 105                  * Truncate the job. print_job_end will take
 106                  * care of deleting it for us. JRA.
 107                  */
 108                 sys_ftruncate(fsp->fh->fd, 0);
 109         }
 110
 111         if (fsp->fsp_name) {
 112                 TALLOC_FREE(fsp->fsp_name);
 113         }
 114
 115         if (!rap_to_pjobid(fsp->print_file->rap_jobid, NULL, &jobid)) {
 116                 DEBUG(3,("print_fsp_end: Unable to convert RAP jobid %u to print jobid.\n",
 117                         (unsigned int)fsp->print_file->rap_jobid ));
 118                 return;
 119         }
 120
 121         print_job_end(SNUM(fsp->conn),jobid, close_type);
 122 }
 123
 124 /****************************************************************************
 125  Discovered by Sebastian Kloska <oncaphillis@snafu.de>. When print files
 126  go beyond 4GB, the 32-bit offset sent in old SMBwrite calls is relative
 127  to the current 4GB chunk we're writing to.
 128 ****************************************************************************/
 129
 130 SMB_OFF_T printfile_offset(files_struct *fsp, SMB_OFF_T offset)
 131 {
 132         SMB_STRUCT_STAT st;
 133
 134         if (offset & 0xffffffff00000000LL) {
 135                 /* offset is > 4G, skip */
 136                 return offset;
 137         }
 138
 139         if (sys_fstat(fsp->fh->fd, &st, false) == -1) {
 140                 DEBUG(3,("printfile_offset: sys_fstat failed on %s (%s)\n",
 141                         fsp_str_dbg(fsp),
 142                         strerror(errno) ));
 143                 return offset;
 144         }
 145
 146         return (st.st_ex_size & 0xffffffff00000000LL) + offset;
 147 }