openSUSE Programming

Download

programming@lists.opensuse.org

March 2010

4 participants
2 discussions

[opensuse-programming] Writing to a CD using C
by Arani Bhattacharya 11 Mar '10

11 Mar '10

I want to write an existing ISO file to a CD using C. I am using an array of 256 bytes to read characters from the ISO file and trying to write it to the block file /dev/sr0. But I am getting the error message "No disk space present", even though I have checked that the CD is a blank one. Can anybody suggest why this is not working? I would be grateful if somebody could offer some advice on this matter. Thanks for reading this!. Arani -- To unsubscribe, e-mail: opensuse-programming+unsubscribe(a)opensuse.org For additional commands, e-mail: opensuse-programming+help(a)opensuse.org

4 3

Re: [opensuse-programming] Writing to a CD using C
by G T Smith 10 Mar '10

10 Mar '10

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Arani Bhattacharya wrote: > On Fri, Mar 5, 2010 at 4:01 PM, G T Smith > <grahamsmith(a)gandalfsemporium.homelinux.com> wrote: > Per Jessen wrote: >>>> Arani Bhattacharya wrote: >>>> >>>>> I want to write an existing ISO file to a CD using C. I am using an >>>>> array of 256 bytes to read characters from the ISO file and trying to >>>>> write it to the block file /dev/sr0. But I am getting the error >>>>> message "No disk space present", even though I have checked that the >>>>> CD is a blank one. Can anybody suggest why this is not working? >>>>> >>>>> I would be grateful if somebody could offer some advice on this >>>>> matter. >>>> AFAIK, you need to use a special IO interface or library for burning a >>>> CD. Look up existing applications for burning CDs, there are various >>>> tools out there. I'm sure I've come across a library for that kind of >>>> thing in the past. >>>> >>>> >>>> /Per Jessen, Zürich >>>> > Yes, plus a little research in CD colour book formats, CD/DVD layouts, > and the ISO 9660 standard. There is a bit more to an ISO image than raw > data, and IIRC there are restrictions on what you can write where on a > CD/DVD, and your image has to be written to a writable area if you do > not want to increase your coaster collection. > > > - -- To unsubscribe, e-mail: opensuse-programming+unsubscribe(a)opensuse.org For additional commands, e-mail: opensuse-programming+help(a)opensuse.org >> >> > Thanks for your help. I have gone through the ISO 9660 standard. About > writing to a writable area, could you please show me some resource > (such as URL or book) where I may learn more from it? Most of the > resources that I have seen (such as tldp) are quite dated. CDs are an old technology (c.1982) ... the standards used have not changed much in last decade or so ... http://www.usbyte.com/common/compact_disk.htm and http://fy.chalmers.se/~appro/linux/DVD+RW/tools/ might be a useful starting points. There are differences between DVD and CD structures, the former tend to use a simplified variant of the latter... BTW Please respond to the list. Many people will ignore off list responses ... and others may be in a position to respond quicker.. - -- ============================================================================== I have always wished that my computer would be as easy to use as my telephone. My wish has come true. I no longer know how to use my telephone. Bjarne Stroustrup ============================================================================== -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.9 (GNU/Linux) Comment: Using GnuPG with SUSE - http://enigmail.mozdev.org/ iEYEARECAAYFAkuSJD0ACgkQasN0sSnLmgJ/6gCg9mW//Vz4QLoaUCXUE+49OnQM krsAmwcau2SpL7PYdAM2kKricf/eZkM9 =UhCo -----END PGP SIGNATURE----- -- To unsubscribe, e-mail: opensuse-programming+unsubscribe(a)opensuse.org For additional commands, e-mail: opensuse-programming+help(a)opensuse.org

2 1