fs_check_self_id(3K) — DG/UX 5.4R3.00



fs_check_self_id(3K)           DG/UX 5.4R3.00           fs_check_self_id(3K)


NAME
       fscheckselfid - check the self-ID for a given set of blocks

SYNOPSIS
       #include "/usr/src/uts/aviion/ii/ifs.h"

       booleantype    fscheckselfid (blocksptr, selfidptr, countptr)
       pointertoanytype     blocksptr;       /*READ ONLY*/
       dfselfidptrtype     selfidptr;      /*READ ONLY*/
       uint32ptrtype         countptr;        /*READ/WRITE*/

   where:
       blocksptr  A pointer to the beginning of the first block to be
                   checked.
       countptr   On input, a pointer to the number of bytes to be checked.
                   On output, a pointer to the number of bytes that checked
                   out OK.  On both input and output, countptr must be a
                   multiple of the block size, though this is not checked.
       selfidptr A pointer to the self-ID that the first block is expected
                   to have.

DESCRIPTION
       A self-ID is an identifying number used to identify different non-
       data disk blocks used in disk administration (for example, header
       blocks).

       For each block, this routine checks its self-ID against the prototype
       self-ID.  If any block fails, FALSE is returned along with the number
       of bytes that passed the check.  If all blocks pass, TRUE is returned
       along with the number of bytes that were checked.

DIAGNOSTICS
   Return Value
       TRUE   All blocks were successfully checked.

       FALSE  At least one block failed a self-ID check.

   Errors
       None.

SEE ALSO
       systemconfiguration(3K).
       Programming in the DG/UX Kernel Environment.














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