Re: [9fans] Q: checking CD vs. iso image

[Gorka guardiola <paurea@gmail.com>]

Congratulations, you just reinvented cmp(1). You should now go for ps(1).

On 8/22/05, alexandr babic <alexandr@babi.cz> wrote:
> hi.
> 
> and what about to compare one byte from cd with one byte from iso
> by following short program, but i haven't plan9 here so you have
> to try by yourself :-)
> 
> alexandr.
> 
> 
> check.c
> ------------------------------
> #include <u.h>
> #include <libc.h>
> 
> void main()
> {
> int cdfd,isofd,i,r;
> unsigned char C,I;
> 
> cdfd=open("/dev/sdD0/data",OREAD);
> isofd=open("obraz.iso",OREAD);
> 
> i=0;
> 
> while(1)
> {
>  r=read(cdfd,(void*)&C,1);
>  if(r==0) break;
>  r=read(isofd,(void*)&I,1);
>  if(r==0) break;
>  i++;
> 
>  if(C==I) print("byte position=%d, bytes are same!\n",i);
>  else print("byte position=%d, bytes differ! cd is %d, iso is %d
> \n",i,C,I);
> }
> 
> close(cdfd);
> close(isofd);
> exits(0);
> }
> 
> 


-- 
- curiosity sKilled the cat