GETLABELSECTOR(3)

GETLABELSECTOR(3) | 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.

August 25, 2011 | NetBSD 8.0