Are you sure you've set drAtrb to 0 first before OR-ing 0x8000 with it ?
Or are you just setting mdb.drAtrb = 0x8000 instead of :
1) mdb.drAtrb = 0x0000; 2) mdb.drAtrb | = 0x8000 ;
Stt 2) without stt 1) might result in some unknown value getting written.
-Nandini
----- Original Message ----- From: "Biswaroop(External)" biswaroopb@integramicro.com To: "Entwicklung" entwicklung@whengenibk.de Sent: Friday, April 26, 2002 2:05 PM Subject: Re: [hfs-user] To make a Readonly HFS Volume
Hi Nandini, Thanks for a Quick Reply. But I did that too..but no success. regrds Biswaroop ----- Original Message ----- From: "Entwicklung" entwicklung@whengenibk.de To: "Biswaroop(External)" biswaroopb@integramicro.com Cc: hfs-user@lists.mars.org Sent: Friday, April 26, 2002 5:08 PM Subject: Re: [hfs-user] To make a Readonly HFS Volume
Wouldn't setting bit 15 give 0x8000 ??? numbering the 16 bits from 0..15 i.e.
- Nandini
----- Original Message ----- From: "Biswaroop(External)" biswaroopb@integramicro.com To: hfs-user@lists.mars.org Sent: Friday, April 26, 2002 1:17 PM Subject: [hfs-user] To make a Readonly HFS Volume
Hi ,
I want to make a HFS volume readonly. I am setting the flag in mdb.drAtrb to
mdb.drAtrb | = 0x4000 ( As said in Inside Macintosh)
Bit Meaning 15 Set if th volume is Locked by Software.
After creating a Image of such a Volume. I am mounting it with a FreeWare application in Windows which can
mount
HFS
volumes. But , I can still add files to that volume through this software and delete them too. That shows the volume is not Locked. So, anything else I should do to Volume parameters to make that Volume represent a ReadOnly one??
Waiting for ur Inputs.
Regards Biswaroop
The difference between sunrise and sunset lies in the freshness of your eyes. --Bisban
Hi Nandini, Well if I make mdb.drAttrib = 0; Then I will be nullifying the other volume conditions. Therefore I am Oring it and I believe the code which will check for the Readonly flag will have this logic .. if(mdb.drAttrib & HFS_READONLY) { //Means Volume is Readonly } where # define HFS_READONLY (1<<15)
What do u say??
regs Biswaroop
----- Original Message ----- From: "Entwicklung" entwicklung@whengenibk.de To: "Biswaroop(External)" biswaroopb@integramicro.com Cc: hfs-user@lists.mars.org Sent: Friday, April 26, 2002 6:16 PM Subject: Re: [hfs-user] To make a Readonly HFS Volume
Are you sure you've set drAtrb to 0 first before OR-ing 0x8000 with it ?
Or are you just setting mdb.drAtrb = 0x8000 instead of :
- mdb.drAtrb = 0x0000;
- mdb.drAtrb | = 0x8000 ;
Stt 2) without stt 1) might result in some unknown value getting written.
-Nandini
----- Original Message ----- From: "Biswaroop(External)" biswaroopb@integramicro.com To: "Entwicklung" entwicklung@whengenibk.de Sent: Friday, April 26, 2002 2:05 PM Subject: Re: [hfs-user] To make a Readonly HFS Volume
Hi Nandini, Thanks for a Quick Reply. But I did that too..but no success. regrds Biswaroop ----- Original Message ----- From: "Entwicklung" entwicklung@whengenibk.de To: "Biswaroop(External)" biswaroopb@integramicro.com Cc: hfs-user@lists.mars.org Sent: Friday, April 26, 2002 5:08 PM Subject: Re: [hfs-user] To make a Readonly HFS Volume
Wouldn't setting bit 15 give 0x8000 ??? numbering the 16 bits from
0..15
i.e.
- Nandini
----- Original Message ----- From: "Biswaroop(External)" biswaroopb@integramicro.com To: hfs-user@lists.mars.org Sent: Friday, April 26, 2002 1:17 PM Subject: [hfs-user] To make a Readonly HFS Volume
Hi ,
I want to make a HFS volume readonly. I am setting the flag in mdb.drAtrb to
mdb.drAtrb | = 0x4000 ( As said in Inside Macintosh)
Bit Meaning 15 Set if th volume is Locked by Software.
After creating a Image of such a Volume. I am mounting it with a FreeWare application in Windows which can
mount
HFS
volumes. But , I can still add files to that volume through this software and delete them too. That shows the volume is not Locked. So, anything else I should do to Volume parameters to make that Volume represent a ReadOnly one??
Waiting for ur Inputs.
Regards Biswaroop
The difference between sunrise and sunset lies in the freshness of your eyes. --Bisban
Well if I make mdb.drAttrib = 0; Then I will be nullifying the other volume conditions.
Not necessarily.... just check if mdb.drAttrib has been set to 0 right before you OR it with your other conditions - not initializing your variables correctly is obviously not a good choice... what kind of logic you use is left to you..
- Nandini
Therefore I am Oring it and I believe the code which will check for the Readonly flag will have this logic .. if(mdb.drAttrib & HFS_READONLY) { file://Means Volume is Readonly } where # define HFS_READONLY (1<<15)
What do u say??
----- Original Message ----- From: "Entwicklung" entwicklung@whengenibk.de To: "Biswaroop(External)" biswaroopb@integramicro.com Cc: hfs-user@lists.mars.org Sent: Friday, April 26, 2002 6:16 PM Subject: Re: [hfs-user] To make a Readonly HFS Volume
Are you sure you've set drAtrb to 0 first before OR-ing 0x8000 with it ?
Or are you just setting mdb.drAtrb = 0x8000 instead of :
- mdb.drAtrb = 0x0000;
- mdb.drAtrb | = 0x8000 ;
Stt 2) without stt 1) might result in some unknown value getting
written.
-Nandini
----- Original Message ----- From: "Biswaroop(External)" biswaroopb@integramicro.com To: "Entwicklung" entwicklung@whengenibk.de Sent: Friday, April 26, 2002 2:05 PM Subject: Re: [hfs-user] To make a Readonly HFS Volume
Hi Nandini, Thanks for a Quick Reply. But I did that too..but no success. regrds Biswaroop ----- Original Message ----- From: "Entwicklung" entwicklung@whengenibk.de To: "Biswaroop(External)" biswaroopb@integramicro.com Cc: hfs-user@lists.mars.org Sent: Friday, April 26, 2002 5:08 PM Subject: Re: [hfs-user] To make a Readonly HFS Volume
Wouldn't setting bit 15 give 0x8000 ??? numbering the 16 bits from
0..15
i.e.
- Nandini
----- Original Message ----- From: "Biswaroop(External)" biswaroopb@integramicro.com To: hfs-user@lists.mars.org Sent: Friday, April 26, 2002 1:17 PM Subject: [hfs-user] To make a Readonly HFS Volume
Hi ,
I want to make a HFS volume readonly. I am setting the flag in mdb.drAtrb to
mdb.drAtrb | = 0x4000 ( As said in Inside Macintosh)
Bit Meaning 15 Set if th volume is Locked by Software.
After creating a Image of such a Volume. I am mounting it with a FreeWare application in Windows which can
mount
HFS
volumes. But , I can still add files to that volume through this software and delete them too. That shows the volume is not Locked. So, anything else I should do to Volume parameters to make that Volume represent a ReadOnly one??
Waiting for ur Inputs.
Regards Biswaroop
The difference between sunrise and sunset lies in the freshness of your eyes. --Bisban
-
Biswaroop(External) -
Entwicklung