Removed trailing white space at end of lines

[thirdparty/man-pages.git] / man2 / getsid.2

diff --git a/man2/getsid.2 b/man2/getsid.2
index 20c2dd149771d7868ddb9cc3497b7e1fe3ab524a..a912b651fb9f52c671c1f566c4df3d09f21fd009 100644 (file)
--- a/man2/getsid.2
+++ b/man2/getsid.2
@@ -1,4 +1,5 @@
 .\" Copyright (C) 1996 Andries Brouwer (aeb@cwi.nl)
 .\" Copyright (C) 1996 Andries Brouwer (aeb@cwi.nl)

+.\" and Copyright (C) 2016 Michael Kerrisk <mtk.manpages@gmail.com>

 .\"
 .\" %%%LICENSE_START(GPLv2+_DOC_FULL)
 .\" This is free documentation; you can redistribute it and/or
 .\"
 .\" %%%LICENSE_START(GPLv2+_DOC_FULL)
 .\" This is free documentation; you can redistribute it and/or


@@ -23,38 +24,43 @@
 .\"
 .\" Modified Thu Oct 31 14:18:40 1996 by Eric S. Raymond <esr@y\thyrsus.com>
 .\" Modified 2001-12-17, aeb
 .\"
 .\" Modified Thu Oct 31 14:18:40 1996 by Eric S. Raymond <esr@y\thyrsus.com>
 .\" Modified 2001-12-17, aeb

-.TH GETSID 2 2015-08-08 "Linux" "Linux Programmer's Manual"
+.TH GETSID 2 2017-09-15 "Linux" "Linux Programmer's Manual"

 .SH NAME
 getsid \- get session ID
 .SH SYNOPSIS
 .SH NAME
 getsid \- get session ID
 .SH SYNOPSIS

+.B #include <sys/types.h>
+.br

 .B #include <unistd.h>
 .B #include <unistd.h>

-.sp
+.PP

 .BI "pid_t getsid(pid_t" " pid" );
 .BI "pid_t getsid(pid_t" " pid" );

-.sp
+.PP

 .in -4n
 Feature Test Macro Requirements for glibc (see
 .BR feature_test_macros (7)):
 .in
 .in -4n
 Feature Test Macro Requirements for glibc (see
 .BR feature_test_macros (7)):
 .in

-.sp
+.PP

 .ad l
 .PD 0
 .BR getsid ():
 .RS 4
 .ad l
 .PD 0
 .BR getsid ():
 .RS 4

-_XOPEN_SOURCE\ >=\ 500 ||
-_XOPEN_SOURCE\ &&\ _XOPEN_SOURCE_EXTENDED
+_XOPEN_SOURCE\ >=\ 500
+.\"    || _XOPEN_SOURCE\ &&\ _XOPEN_SOURCE_EXTENDED

 .br
 .br

-|| /* Since glibc 2.12: */ _POSIX_C_SOURCE\ >=\ 200809L
+    || /* Since glibc 2.12: */ _POSIX_C_SOURCE\ >=\ 200809L

 .RE
 .PD
 .ad
 .SH DESCRIPTION
 .I getsid(0)
 returns the session ID of the calling process.
 .RE
 .PD
 .ad
 .SH DESCRIPTION
 .I getsid(0)
 returns the session ID of the calling process.

-.I getsid(p)
+.BR getsid ()

 returns the session ID of the process with process ID
 returns the session ID of the process with process ID

-.IR p .
-(The session ID of a process is the process group ID of the
-session leader.)
+.IR pid .
+If
+.I pid
+is 0,
+.BR getsid ()
+returns the session ID of the calling process.

 .SH RETURN VALUE
 On success, a session ID is returned.
 On error, \fI(pid_t)\ \-1\fP will be returned, and
 .SH RETURN VALUE
 On success, a session ID is returned.
 On error, \fI(pid_t)\ \-1\fP will be returned, and


@@ -64,13 +70,13 @@ is set appropriately.
 .TP
 .B EPERM
 A process with process ID
 .TP
 .B EPERM
 A process with process ID

-.I p
+.I pid

 exists, but it is not in the same session as the calling process,
 and the implementation considers this an error.
 .TP
 .B ESRCH
 No process with process ID
 exists, but it is not in the same session as the calling process,
 and the implementation considers this an error.
 .TP
 .B ESRCH
 No process with process ID

-.I p
+.I pid

 was found.
 .SH VERSIONS
 This system call is available on Linux since version 2.0.
 was found.
 .SH VERSIONS
 This system call is available on Linux since version 2.0.


@@ -81,6 +87,10 @@ POSIX.1-2001, POSIX.1-2008, SVr4.
 .SH NOTES
 Linux does not return
 .BR EPERM .
 .SH NOTES
 Linux does not return
 .BR EPERM .

+.PP
+See
+.BR credentials (7)
+for a description of sessions and session IDs.

 .SH SEE ALSO
 .BR getpgid (2),
 .BR setsid (2),
 .SH SEE ALSO
 .BR getpgid (2),
 .BR setsid (2),