the changes to the main smb code

------------
The following series of commits are for the new tdb based printing
backend. This completely replaces our old printing backend.

Major changes include:

- all print ops are now done in printing/*.c rather than scattered all
  over the place
- system job ids are decoupled from SMB job ids
- the lpq parsers don't need to be nearly so smart, they only need to
  parse the filename, the status and system job id
- we can store lots more info about a job, including the full job name
- the queue cache control is much better

I also added a new utility routine file_lines_load() that loads a text
file and parses it into lines. This is used in out lpq parsing and I
also want to use it to replace all of our fgets() based code in other
places.

1 files changed, 9 insertions, 0 deletions

diff --git a/source/smbd/fileio.c b/source/smbd/fileio.c
index 43fd091b49d..5d8c3a9710f 100644
--- a/source/smbd/fileio.c
+++ b/source/smbd/fileio.c
@@ -96,6 +96,11 @@ ssize_t read_file(files_struct *fsp,char *data,SMB_OFF_T pos,size_t n)
 {
   ssize_t ret=0,readret;
 
+  /* you can't read from print files */
+  if (fsp->print_file) {
+	  return -1;
+  }
+
   /*
    * Serve from write cache if we can.
    */
@@ -154,6 +159,10 @@ ssize_t write_file(files_struct *fsp, char *data, SMB_OFF_T pos, size_t n)
   ssize_t total_written = 0;
   int write_path = -1; 
 
+  if (fsp->print_file) {
+	  return print_job_write(fsp->print_jobid, data, n);
+  }
+
   if (!fsp->can_write) {
     errno = EPERM;
     return(0);