now that we have no global arrays we can start to split up the monster

server.c without breaking things.

this splits off netprot.c and fileio.c for negprot and read/write/seek
handling respectively.
(This used to be commit b3d7014643ec9f2eef6e6f598f5b9db1fe2f930d)

1 files changed, 117 insertions, 0 deletions

diff --git a/source3/smbd/fileio.c b/source3/smbd/fileio.c
new file mode 100644
index 0000000000..edf87f3e7b
--- /dev/null
+++ b/source3/smbd/fileio.c
@@ -0,0 +1,117 @@
+/* 
+   Unix SMB/Netbios implementation.
+   Version 1.9.
+   read/write to a files_struct
+   Copyright (C) Andrew Tridgell 1992-1998
+   
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "includes.h"
+
+extern int DEBUGLEVEL;
+
+
+/****************************************************************************
+seek a file. Try to avoid the seek if possible
+****************************************************************************/
+int seek_file(files_struct *fsp,uint32 pos)
+{
+  uint32 offset = 0;
+
+  if (fsp->print_file && lp_postscript(fsp->conn->service))
+    offset = 3;
+
+  fsp->pos = (int)(lseek(fsp->fd_ptr->fd,pos+offset,SEEK_SET) - offset);
+  return(fsp->pos);
+}
+
+/****************************************************************************
+read from a file
+****************************************************************************/
+int read_file(files_struct *fsp,char *data,uint32 pos,int n)
+{
+  int ret=0,readret;
+
+#if USE_READ_PREDICTION
+  if (!fsp->can_write)
+    {
+      ret = read_predict(fsp->fd_ptr->fd,pos,data,NULL,n);
+
+      data += ret;
+      n -= ret;
+      pos += ret;
+    }
+#endif
+
+#if WITH_MMAP
+  if (fsp->mmap_ptr)
+    {
+      int num = (fsp->mmap_size > pos) ? (fsp->mmap_size - pos) : -1;
+      num = MIN(n,num);
+      if (num > 0)
+	{
+	  memcpy(data,fsp->mmap_ptr+pos,num);
+	  data += num;
+	  pos += num;
+	  n -= num;
+	  ret += num;
+	}
+    }
+#endif
+
+  if (n <= 0)
+    return(ret);
+
+  if (seek_file(fsp,pos) != pos)
+    {
+      DEBUG(3,("Failed to seek to %d\n",pos));
+      return(ret);
+    }
+  
+  if (n > 0) {
+    readret = read(fsp->fd_ptr->fd,data,n);
+    if (readret > 0) ret += readret;
+  }
+
+  return(ret);
+}
+
+
+/****************************************************************************
+write to a file
+****************************************************************************/
+int write_file(files_struct *fsp,char *data,int n)
+{
+
+  if (!fsp->can_write) {
+    errno = EPERM;
+    return(0);
+  }
+
+  if (!fsp->modified) {
+    struct stat st;
+    fsp->modified = True;
+    if (fstat(fsp->fd_ptr->fd,&st) == 0) {
+      int dosmode = dos_mode(fsp->conn,fsp->fsp_name,&st);
+      if (MAP_ARCHIVE(fsp->conn) && !IS_DOS_ARCHIVE(dosmode)) {	
+	dos_chmod(fsp->conn,fsp->fsp_name,dosmode | aARCH,&st);
+      }
+    }  
+  }
+
+  return(write_data(fsp->fd_ptr->fd,data,n));
+}
+