Unfortunatly, the TK50Z won't accept 512K as a block size (for reads
or writes). IIRC 32K is the biggest....

clint



On Thu, 8 Jun 2000, David Evans wrote:

> emanuel stiebler wrote:
> > 
> > What is the easiest way to figure out, in which blocksizes a tape is written
> > ?
> > 
> 
>   I've had good luck with this:
> 
> /*
>  * This little program reads a tape and prints out the block sizes.
>  * One arg: the raw tape device
>  */
> #include <stdio.h>
> #include <sys/types.h>
> #include <sys/file.h>
> 
> #define MAXREAD	(512*1024)
> char buf[MAXREAD];
> 
> main(argc, argv)
> 	int argc;
> 	char *argv[];
> {
> 	int fil, bsiz;
> 
> 	if (argc != 2 || (fil = open(argv[1], O_RDONLY, 0666)) < 0) {
> 		fprintf(stderr, "Usage: siz /dev/rmt??\n");
> 		exit();
> 	}
> 	while ((bsiz = read(fil, buf, MAXREAD)) > 0)
> 		printf("%d\n", bsiz);
> }
> 
> I got it from Rick Macklem.
> 
> -- 
> David Evans          (NeXTMail/MIME OK)             dfevans@bbcr.uwaterloo.ca
> PhD Student, Computer/Synth Junkie         http://bbcr.uwaterloo.ca/~dfevans/
> University of Waterloo         "Default is the value selected by the composer
> Ontario, Canada           overridden by your command." - Roland TR-707 Manual
> 
>