Uh... I'm checking stuff in. Jeremy will by *so* pleased :)

netatalk.c contains the meat of the code required to move Macintosh resource
forks around when Windows users manipulate files created by a mac.  This
allows for greater integration between netatalk and Samba, but is, of course,
potentially a recipe for disaster.  All the netatalk related code is insulated
by #ifdefs from the standard build.
(This used to be commit 05a5243d841cecd128e29379eab2a2784262ccc7)

1 files changed, 159 insertions, 0 deletions

diff --git a/source3/lib/netatalk.c b/source3/lib/netatalk.c
new file mode 100644
index 0000000000..a11676b1e6
--- /dev/null
+++ b/source3/lib/netatalk.c
@@ -0,0 +1,159 @@
+/* 
+   Unix SMB/Netbios implementation.
+   Version 1.9.
+   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.
+*/
+
+/*
+   netatalk.c : routines for improving interaction between Samba and netatalk.
+   Copyright (C) John D. Blair <jdblair@cobaltnet.com> 1998
+                 Cobalt Networks, Inc.
+*/
+
+#include "includes.h"
+
+#ifdef WITH_NETATALK
+ 
+extern int DEBUGLEVEL;
+
+/*****************
+   ntalk_resourcepath: creates the path to the netatalk resource fork for
+                        a given file
+
+   fname:       normal filename
+   doublename:  buffer that will contain the location of the resource fork
+   length:      length of this buffer (to prevent overflows)
+
+   NOTE: doesn't currently gracefully deal with buffer overflows- it just
+         doesn't allow them to occur.
+******************/
+void ntalk_resourcepath(const char *fname, char *doublename, const int length)
+{
+  int i;
+  int charnum;
+  int lastslash;
+  char appledouble[] = APPLEDOUBLE;
+
+  /* copy fname to doublename and find last slash */
+  for (i = 0; (fname[i] != 0) && (i <= length); i++) {
+    if (fname[i] == '/') {
+      lastslash = i;
+    }
+    doublename[i] = fname[i];
+  }
+  lastslash++; /* location just after last slash */
+
+  /* insert .AppleDouble */
+  charnum = lastslash;
+  for (i = 0; (appledouble[i] != 0) && (i <= length); i++) {
+    doublename[charnum] = appledouble[i];
+    charnum++;
+  }
+
+  /* append last part of file name */
+  for (i = lastslash; (fname[i] != 0) && (i <= length); i++) {
+    doublename[charnum] = fname[i];
+    charnum++;
+  }
+  
+  doublename[charnum] = 0;
+}
+
+/**********************
+ ntalk_mkresdir: creates a new .AppleDouble directory (if necessary)
+                 for the resource fork of a specified file
+**********************/
+int ntalk_mkresdir(const char *fname)
+{
+  char fdir[255];
+  int i;
+  int lastslash;
+  struct stat dirstats;
+  char appledouble[] = APPLEDOUBLE;
+
+  /* find directory containing fname */
+  for (i = 0; (fname[i] != 0) && (i <= 254); i++) {
+    fdir[i] = fname[i];
+    if (fdir[i] == '/') {
+      lastslash = i;
+    }
+  }
+  lastslash++;
+  fdir[lastslash] = 0;
+  lstat(fdir, &dirstats);
+
+  /* append .AppleDouble */
+  for (i = 0; (appledouble[i] != 0) && (lastslash <= 254); i++) {
+    fdir[lastslash] = appledouble[i];
+    lastslash++;
+  }
+  fdir[lastslash] = 0;
+
+  /* create this directory */
+  /* silently ignore EEXIST error */
+  if ((mkdir(fdir, dirstats.st_mode) < 0) && (errno != EEXIST)) {
+    return errno;
+  }
+
+  /* set ownership of this dir to the same as its parent */
+  /* holy race condition, batman! */
+  /* warning: this doesn't check for errors */
+  chown(fdir, dirstats.st_uid, dirstats.st_gid);
+
+  printf("%s\n", fdir);
+
+  return 1;
+}
+
+/**********************
+ ntalk_unlink: unlink a file and its resource fork
+**********************/
+int ntalk_unlink(const char *fname)
+{
+  char buf[255];
+
+  ntalk_resourcepath(fname, buf, 255);
+  unlink(buf);
+  return unlink(fname);
+}
+
+/**********************
+ ntalk_chown: chown a file and its resource fork
+**********************/
+int ntalk_chown(const char *fname, const uid_t uid, const gid_t gid)
+{
+  char buf[255];
+
+  ntalk_resourcepath(fname, buf, 255);
+  chown(buf, uid, gid);
+  return chown(fname, uid, gid);
+}
+
+/**********************
+ ntalk_chmod: chmod a file and its resource fork
+**********************/
+int ntalk_chmod(const char *fname, mode_t perms)
+{
+  char buf[255];
+
+  ntalk_resourcepath(fname, buf, 255);
+  chmod(buf, perms);
+  return chmod(fname, perms);
+}
+
+
+#endif /* WITH_NETATALK */