openUp.c

/* 
  * Copyright (c) 2001 Apple Computer, Inc. All rights reserved. 
  * 
  * @APPLE_LICENSE_HEADER_START@ 
  * 
  * The contents of this file constitute Original Code as defined in and 
  * are subject to the Apple Public Source License Version 1.1 (the 
  * "License").  You may not use this file except in compliance with the 
  * License.  Please obtain a copy of the License at 
  * http://www.apple.com/publicsource and read it before using this file. 
  * 
  * This Original Code and all software distributed under the License are 
  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER 
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 
  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 
  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the 
  * License for the specific language governing rights and limitations 
  * under the License. 
  * 
  * @APPLE_LICENSE_HEADER_END@ 
  */ 
/* 
  * Shantonu Sen <ssen@apple.com>
  * openUp.c - program to set the "first-open-window" field of a volume 
  * 
  * Get the directory ID for the first argument, and set it as word 2 
  * of the Finder Info fields for the volume it lives on 
  * 
  * cc -o openUp openUp.c 
  * Usage: openUp /Volumes/Foo/OpenMe/ 
  * 
  * RCS: @(#) $Id$
  * 
  */ 

#include <stdio.h> 
#include <unistd.h> 
#include <sys/attr.h> 
#include <sys/stat.h> 
#include <sys/mount.h> 
#include <strings.h> 

struct directoryinfo { 
   unsigned long length; 
   u_int32_t dirid; 
}; 

struct volumeinfo { 
   unsigned long length; 
   u_int32_t  finderinfo[8]; 
}; 


int main(int argc, char *argv[]) { 

   char *path = NULL; 
   struct attrlist alist; 
   struct directoryinfo dirinfo; 
   struct volumeinfo volinfo; 
   struct statfs sfs; 

   path = argv[1]; 

   bzero(&alist, sizeof(alist)); 
   alist.bitmapcount = 5; 
   alist.commonattr = ATTR_CMN_OBJID; 

   getattrlist(path, &alist, &dirinfo, sizeof(dirinfo), 0); 

   printf("directory id: %lu\n", (unsigned long)dirinfo.dirid); 

   statfs(path, &sfs); 

   printf("mountpoint: %s\n", sfs.f_mntonname); 

   alist.commonattr = ATTR_CMN_FNDRINFO; 
   alist.volattr = ATTR_VOL_INFO; 

   getattrlist(sfs.f_mntonname, &alist, &volinfo, sizeof(volinfo), 0); 
   volinfo.finderinfo[2] = dirinfo.dirid; 
   setattrlist(sfs.f_mntonname, &alist, volinfo.finderinfo, sizeof(volinfo.finderinfo), 0); 

}