getlabeloffset(3) - NetBSD Manual Pages

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GETLABELSECTOR(3)       NetBSD Library Functions Manual      GETLABELSECTOR(3)


NAME

     getlabelsector, getlabeloffset, getlabelusesmbr -- get disklabel location
     informations


LIBRARY

     System Utilities Library (libutil, -lutil)


SYNOPSIS

     #include <util.h>

     daddr_t
     getlabelsector(void);

     off_t
     getlabeloffset(void);

     int
     getlabelusesmbr(void);


DESCRIPTION

     The getlabelsector() and getlabeloffset() functions return values which
     describe the exact on-disk location of the disklabel(5) on the current
     system, or -1 on error.  These functions supersede the hardcoded
     LABELSECTOR and LABELOFFSET definitions previously used to derive the
     location of the disklabel(5).

     The getlabelusesmbr() returns 1 if the disklabel is located inside a MBR
     partition, 0 if it's stored relative to the start of the disk, or -1 on
     error.


SEE ALSO

     sysctl(3), disklabel(5)


HISTORY

     The getlabelsector() and getlabeloffset() functions appeared in
     NetBSD 2.0.

NetBSD 10.1                     August 25, 2011                    NetBSD 10.1