LDP
/
man-pages
mirror of https://github.com/mkerrisk/man-pages
0
1
Fork 0
Code Releases Activity

lseek64.3: NOTES: describe the origin of lseek64() in LFS 

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Michael Kerrisk 2020-11-23 10:01:25 +01:00
parent 83f0bca3b1
commit e0b19c5b50
1 changed files with 20 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
man3/lseek64.3
View File

@ -1,4 +1,5 @@
.\" Copyright 2004 Andries Brouwer <aeb@cwi.nl>.
.\" and Copyright (c) 2020 Michael Kerrisk <mtk.manpages@gmail.com>
.\"
.\" %%%LICENSE_START(VERBATIM)
.\" Permission is granted to make and distribute verbatim copies of this
@ -195,6 +196,25 @@ T{
.BR lseek64 ()
T} Thread safety MT-Safe
.TE
.SH NOTES
.BR lseek64 ()
is one of the functions that was specified in the Large File Summit (LFS)
specification that was completed in 1996.
The purpose of the specification was to provide transitional support
that allowed applications on 32-bit systems to access
files whose size exceeds that which can be represented with a 32-bit
.IR off_t
type.
As noted above, this symbol is exposed by header files if the
.B _LARGEFILE64_SOURCE
feature test macro is defined.
ALternatively, on a 32-bit system, the symbol
.I lseek
is aliased to
.I lseek64
if the macro
.B _FILE_OFFSET_BITS
is defined with the value 64.
.SH SEE ALSO
.BR llseek (2),
.BR lseek (2)