openUp.c

// http://cocoa.mamasam.com/MACOSXDEV/2001/12/2/20206.php

/* 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 <<EMAIL REMOVED>>
* 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/
*
*/

#include <stdio.h>
#include <unistd.h>
#include <sys/attr.h>
#include <sys/stat.h>
#include <sys/mount.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", 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);

}