diff options
Diffstat (limited to 'man3/lseek64.3')
| -rw-r--r-- | man3/lseek64.3 | 41 |
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) |