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getlabeloffset(3) [netbsd man page]

GETLABELSECTOR(3)					   BSD 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 cur- rent 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. BSD
August 25, 2011 BSD

Check Out this Related Man Page

GETDISKBYNAME(3)					   BSD Library Functions Manual 					  GETDISKBYNAME(3)

NAME
getdiskbyname, setdisktab -- get generic disk description by its name LIBRARY
Standard C Library (libc, -lc) SYNOPSIS
#include <sys/types.h> #include <sys/disklabel.h> #include <disktab.h> int setdisktab(char *name); struct disklabel * getdiskbyname(const char *name); DESCRIPTION
The getdiskbyname() function takes a disk name (e.g. 'rm03') and returns a prototype disk label describing its geometry information and the standard disk partition tables. All information is obtained from the disktab(5) file. The setdisktab() function changes the default disktab file name from /etc/disktab (aka _PATH_DISKTAB) to name. RETURN VALUES
getdiskbyname() returns a null pointer if the entry is not found in the current disktab file. setdisktab() returns 0 on success and -1 if name is a null pointer or points to an empty string. FILES
/etc/disktab the default database of disk types. SEE ALSO
disklabel(5), disktab(5), disklabel(8) HISTORY
The getdiskbyname() function appeared in 4.3BSD. The setdisktab() function appeared in NetBSD 1.4. BUGS
The getdiskbyname() function leaves its results in an internal static object and returns a pointer to that object. Subsequent calls will modify the same object. BSD
June 4, 1993 BSD

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