[CC += linux-man@]
Hi Utkarsh,
On 3/12/21 7:29 AM, Utkarsh Singh wrote:
Hi Alex,
Some man-pages contain section reference such as(open.3p):
Section 2.14, File Descriptor Allocation
Are these from POSIX.1 standards or some more exhaustive documentation?
Yes, those are from the POSIX.1 standard. If you have a look at the top
of 'man 3posix open' (or 'man 3p open' for short), which reads from the
file 'open.3p', you'll see:
[
OPEN(3POSIX) POSIX Programmer's Manual OPEN(3POSIX)
PROLOG
This manual page is part of the POSIX Programmer's Manual.
The Linux implementation of this interface may differ (con‐
sult the corresponding Linux manual page for details of
Linux behavior), or the interface may not be implemented on
Linux.
NAME
open, openat — open file
SYNOPSIS
#include <sys/stat.h>
#include <fcntl.h>
int open(const char *path, int oflag, ...);
int openat(int fd, const char *path, int oflag, ...);
]
And at the bottom of the page:
[
COPYRIGHT
Portions of this text are reprinted and reproduced in elec‐
tronic form from IEEE Std 1003.1-2017, Standard for Infor‐
mation Technology -- Portable Operating System Interface
(POSIX), The Open Group Base Specifications Issue 7, 2018
Edition, Copyright (C) 2018 by the Institute of Electrical
and Electronics Engineers, Inc and The Open Group. In the
event of any discrepancy between this version and the orig‐
inal IEEE and The Open Group Standard, the original IEEE
and The Open Group Standard is the referee document. The
original Standard can be obtained online at
http://www.opengroup.org/unix/online.html .
Any typographical or formatting errors that appear in this
page are most likely to have been introduced during the
conversion of the source files to man page format. To re‐
port such errors, see https://www.kernel.org/doc/man-
pages/reporting_bugs.html .
IEEE/The Open Group 2017 OPEN(3POSIX)
]
As you can see, these .3p files are created with scripts, from the
original POSIX HTML files.
We have them in this separate repository:
<https://git.kernel.org/pub/scm/docs/man-pages/man-pages-posix.git/about/>
Regards,
Alex
--
Alejandro Colomar
Linux man-pages comaintainer; https://www.kernel.org/doc/man-pages/
http://www.alejandro-colomar.es/
