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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-15 19:41:07 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-15 19:41:07 +0000
commit3af6d22bb3850ab2bac67287e3a3d3b0e32868e5 (patch)
tree3ee7a3ec64525911fa865bb984c86d997d855527 /man3/lseek64.3
parentAdding debian version 6.05.01-1. (diff)
downloadmanpages-3af6d22bb3850ab2bac67287e3a3d3b0e32868e5.tar.xz
manpages-3af6d22bb3850ab2bac67287e3a3d3b0e32868e5.zip
Merging upstream version 6.7.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--man3/lseek64.341
1 files changed, 20 insertions, 21 deletions
diff --git a/man3/lseek64.3 b/man3/lseek64.3
index aee84ed..9e2801f 100644
--- a/man3/lseek64.3
+++ b/man3/lseek64.3
@@ -4,7 +4,7 @@
.\"
.\" SPDX-License-Identifier: Linux-man-pages-copyleft
.\"
-.TH lseek64 3 2023-07-20 "Linux man-pages 6.05.01"
+.TH lseek64 3 2023-10-31 "Linux man-pages 6.7"
.SH NAME
lseek64 \- reposition 64-bit read/write file offset
.SH LIBRARY
@@ -15,7 +15,7 @@ Standard C library
.BR "#define _LARGEFILE64_SOURCE" " /* See feature_test_macros(7) */"
.B #include <sys/types.h>
.B #include <unistd.h>
-.PP
+.P
.BI "off64_t lseek64(int " fd ", off64_t " offset ", int " whence );
.fi
.SH DESCRIPTION
@@ -35,10 +35,10 @@ has the value
or
.BR SEEK_END ,
respectively.
-.PP
+.P
For more details, return value, and errors, see
.BR lseek (2).
-.PP
+.P
Four interfaces are available:
.BR lseek (),
.BR lseek64 (),
@@ -51,36 +51,36 @@ and
.\"
.SS lseek()
Prototype:
-.PP
+.P
.in +4n
.EX
.BI "off_t lseek(int " fd ", off_t " offset ", int " whence );
.EE
.in
-.PP
+.P
The C library's
.BR lseek ()
wrapper function uses the type
.IR off_t .
This is a 32-bit signed type on 32-bit architectures, unless one
compiles with
-.PP
+.P
.in +4n
.EX
#define _FILE_OFFSET_BITS 64
.EE
.in
-.PP
+.P
in which case it is a 64-bit signed type.
.SS lseek64()
Prototype:
-.PP
+.P
.in +4n
.EX
.BI "off64_t lseek64(int " fd ", off64_t " offset ", int " whence );
.EE
.in
-.PP
+.P
The
.BR lseek64 ()
library function uses a 64-bit type even when
@@ -89,13 +89,13 @@ is a 32-bit type.
Its prototype (and the type
.IR off64_t )
is available only when one compiles with
-.PP
+.P
.in +4n
.EX
#define _LARGEFILE64_SOURCE
.EE
.in
-.PP
+.P
The function
.BR lseek64 ()
.\" in glibc 2.0.94, not in glibc 2.0.6
@@ -103,13 +103,13 @@ is available since glibc 2.1.
.\"
.SS llseek()
Prototype:
-.PP
+.P
.in +4n
.EX
.BI "loff_t llseek(int " fd ", loff_t " offset ", int " whence );
.EE
.in
-.PP
+.P
The type
.I loff_t
is a 64-bit signed type.
@@ -122,14 +122,14 @@ the above prototype, or something equivalent, to their own source.
When users complained about data loss caused by a miscompilation of
.BR e2fsck (8),
glibc 2.1.3 added the link-time warning
-.PP
+.P
.in +4n
"the \`llseek\' function may be dangerous; use \`lseek64\' instead."
.in
-.PP
+.P
This makes this function unusable if one desires a warning-free
compilation.
-.PP
+.P
Since glibc 2.28,
.\" glibc commit 5c5c0dd747070db624c8e2c43691cec854f114ef
this function symbol is no longer available to newly linked applications.
@@ -139,17 +139,17 @@ On 32-bit architectures,
this is the system call that is used (by the C library wrapper functions)
to implement all of the above functions.
The prototype is:
-.PP
+.P
.in +4n
.EX
.BI "int _llseek(int " fd ", off_t " offset_hi ", off_t " offset_lo ,
.BI " loff_t *" result ", int " whence );
.EE
.in
-.PP
+.P
For more details, see
.BR llseek (2).
-.PP
+.P
64-bit systems don't need an
.BR _llseek ()
system call.
@@ -182,7 +182,6 @@ T{
.BR lseek64 ()
T} Thread safety MT-Safe
.TE
-.sp 1
.SH NOTES
.BR lseek64 ()
is one of the functions that was specified in the Large File Summit (LFS)