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sbwrite (3)
  • >> sbwrite (3) ( FreeBSD man: Библиотечные вызовы )

  • BSD mandoc
     

    NAME

    
    
    sbread , sbwrite
    
     - read and write superblocks of a UFS file system
    
     
    

    LIBRARY

    Lb libufs
    
     
    

    SYNOPSIS

       #include <sys/param.h>
       #include <sys/mount.h>
       #include <ufs/ufs/ufsmount.h>
       #include <ufs/ufs/dinode.h>
       #include <ufs/ffs/fs.h>
       #include <libufs.h>
    int sbread (struct uufsd *disk);
    int sbwrite (struct uufsd *disk int all);
     

    DESCRIPTION

    The sbread ();
    and sbwrite ();
    functions provide superblock reads and writes for libufs(3) consumers. The sbread ();
    and sbwrite ();
    functions operate on the superblock field, d_sb associated with a given userland UFS disk structure. Additionally, the sbwrite ();
    function will write to all superblock locations if the Fa all value is non-zero.  

    RETURN VALUES

    Rv -std sbread sbwrite  

    ERRORS

    The function sbread ();
    may fail and set errno for any of the errors specified for the library function bread(3). Additionally, it may follow the libufs(3) error methodologies in situations where no usable superblock could be found.

    The function sbwrite ();
    may fail and set errno for any of the errors specified for the library function bwrite(3).  

    SEE ALSO

    bread(3), bwrite(3), libufs(3)  

    HISTORY

    These functions first appeared as part of libufs(3) in Fx 5.0 .  

    AUTHORS

    An Juli Mallett Aq jmallett@FreeBSD.org


     

    Index

    NAME
    LIBRARY
    SYNOPSIS
    DESCRIPTION
    RETURN VALUES
    ERRORS
    SEE ALSO
    HISTORY
    AUTHORS


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