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authorAlejandro Colomar <alx@kernel.org>2024-04-26 15:06:49 +0200
committerAlejandro Colomar <alx@kernel.org>2024-05-02 01:24:19 +0200
commitdcde2f70372b49ec43efc5db864c9ff585d0a2dd (patch)
tree78b9b7425130e4a5858e4c01a524d802423879ed /man/man3/getusershell.3
parent12aca537ce78a41bbcdaf485209691e10f8002d7 (diff)
downloadman-pages-dcde2f70372b49ec43efc5db864c9ff585d0a2dd.tar.gz
man/, share/mk/: Move man*/ to man/
This is a scripted change: $ mkdir man/; $ mv man* man/; $ ln -st . man/man*; $ find share/mk/ -type f \ | xargs grep -l '^MANDIR *:=' \ | xargs sed -i '/^MANDIR *:=/s,$,/man,'; $ find share/mk/dist/ -type f \ | xargs grep -l man \ | xargs sed -i 's,man%,man/%,g'; Link: <https://lore.kernel.org/linux-man/YxcV4h+Xn7cd6+q2@pevik/T/> Cc: Petr Vorel <pvorel@suse.cz> Cc: Jakub Wilk <jwilk@jwilk.net> Cc: Stefan Puiu <stefan.puiu@gmail.com> Signed-off-by: Alejandro Colomar <alx@kernel.org>
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+'\" t
+.\" Copyright 1993 David Metcalfe (david@prism.demon.co.uk)
+.\"
+.\" SPDX-License-Identifier: Linux-man-pages-copyleft
+.\"
+.\" References consulted:
+.\" Linux libc source code
+.\" Lewine's _POSIX Programmer's Guide_ (O'Reilly & Associates, 1991)
+.\" 386BSD man pages
+.\" Modified Sat Jul 24 19:17:53 1993 by Rik Faith (faith@cs.unc.edu)
+.TH getusershell 3 (date) "Linux man-pages (unreleased)"
+.SH NAME
+getusershell, setusershell, endusershell \- get permitted user shells
+.SH LIBRARY
+Standard C library
+.RI ( libc ", " \-lc )
+.SH SYNOPSIS
+.nf
+.B #include <unistd.h>
+.P
+.B char *getusershell(void);
+.B void setusershell(void);
+.B void endusershell(void);
+.fi
+.P
+.RS -4
+Feature Test Macro Requirements for glibc (see
+.BR feature_test_macros (7)):
+.RE
+.P
+.BR getusershell (),
+.BR setusershell (),
+.BR endusershell ():
+.nf
+ Since glibc 2.21:
+.\" commit 266865c0e7b79d4196e2cc393693463f03c90bd8
+ _DEFAULT_SOURCE
+ In glibc 2.19 and 2.20:
+ _DEFAULT_SOURCE || (_XOPEN_SOURCE && _XOPEN_SOURCE < 500)
+ Up to and including glibc 2.19:
+ _BSD_SOURCE || (_XOPEN_SOURCE && _XOPEN_SOURCE < 500)
+.fi
+.SH DESCRIPTION
+The
+.BR getusershell ()
+function returns the next line from the file
+.IR /etc/shells ,
+opening the file if necessary.
+The line should contain
+the pathname of a valid user shell.
+If
+.I /etc/shells
+does not exist or
+is unreadable,
+.BR getusershell ()
+behaves as if
+.I /bin/sh
+and
+.I /bin/csh
+were listed in the file.
+.P
+The
+.BR setusershell ()
+function rewinds
+.IR /etc/shells .
+.P
+The
+.BR endusershell ()
+function closes
+.IR /etc/shells .
+.SH RETURN VALUE
+The
+.BR getusershell ()
+function returns NULL on end-of-file.
+.SH FILES
+.I /etc/shells
+.SH ATTRIBUTES
+For an explanation of the terms used in this section, see
+.BR attributes (7).
+.TS
+allbox;
+lbx lb lb
+l l l.
+Interface Attribute Value
+T{
+.na
+.nh
+.BR getusershell (),
+.BR setusershell (),
+.BR endusershell ()
+T} Thread safety MT-Unsafe
+.TE
+.SH STANDARDS
+None.
+.SH HISTORY
+4.3BSD.
+.SH SEE ALSO
+.BR shells (5)