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Length: 853 (0x355)
Types: TextFile
Notes: UNIX file
Names: »bang.c«
└─⟦f27320a65⟧ Bits:30001972 Commodore 900 hard disk image with partial source code
└─⟦2d53db1df⟧ UNIX V7 Filesystem
└─ ⟦this⟧ »frankh/lib/bang.c«
/*
* C900 disk exerciser. July 3, 1985
*/
#include <flib.h>
bang( dev, sblk, eblk, count)
char *dev;
unsigned long sblk,eblk;
int count;
{
register int i, fdi, fdo, err;
register long blk;
/* printf("btst: bang: %s %U %U %u \n", dev, sblk, eblk, count); */
err = 0;
if ((fdi = open(dev, 0)) < 0)
panic("can't open input device\n");
if ((fdo = open(dev, 1)) < 0)
panic("can't open output device\n");
printf("btst: testing:\t%s\n", dev);
for (i = 0; i < count; ++i) {
blk = xrand(sblk, eblk); /* generate random block number */
bwrite(fdo, blk, pattern); /* write the block with pattern */
clr( buf); /* clear buffer */
bread(fdi, blk, buf); /* read it back */
if (check(buf, sblk)) /* see if ok */
++err;
}
printf("btst: device:\t%s\terrors this pass:\t%u\n", dev, err);
close(fdi);
close(fdo);
return(err);
}