lfibget.c File Reference

#include <xinu.h>

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Functions
void	lfibget (did32 diskdev, ibid32 inum, struct lfiblk *ibuff)

Function Documentation

lfibget()

void lfibget	(	did32	diskdev,
		ibid32	inum,
		struct lfiblk *	ibuff
	)

Definition at line 10 of file lfibget.c.

References ib2disp, ib2sect, LF_BLKSIZ, and read().

Referenced by lfiballoc(), lfsckfmt(), lfsetup(), and lftruncate().

{
    char    *from, *to;     /* Pointers used in copying */
    int32   i;          /* Loop index used during copy  */
    char    dbuff[LF_BLKSIZ];   /* Buffer to hold disk block    */

    /* Read disk block that contains the specified index block */

    read(diskdev, dbuff, ib2sect(inum));

    /* Copy specified index block to caller's ibuff */

    from = dbuff + ib2disp(inum);
    to = (char *)ibuff;
    for (i=0 ; i<sizeof(struct lfiblk) ; i++)
        *to++ = *from++;
    return;
}

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