Name
getusershell, setusershell, endusershell — get legal
user shells
Synopsis
#include <unistd.h>
char
*getusershell( |
void) ; |
|
void
setusershell( |
void) ; |
|
void
endusershell( |
void) ; |
|
DESCRIPTION
The getusershell
() function
returns the next line from the file /etc/shells
, opening the file if necessary.
The line should contain the pathname of a valid user shell.
If /etc/shells
does not exist
or is unreadable, getusershell
() behaves as if /bin/sh
and /bin/csh
were listed in the file.
The setusershell
() function
rewinds /etc/shells
.
The endusershell
() function
closes /etc/shells
.
RETURN VALUE
The getusershell
() function
returns a NULL pointer on end-of-file.
SEE ALSO
shells(5)
Copyright 1993 David Metcalfe (david@prism.demon.co.uk)
Permission is granted to make and distribute verbatim copies of this
manual provided the copyright notice and this permission notice are
preserved on all copies.
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manual under the conditions for verbatim copying, provided that the
entire resulting derived work is distributed under the terms of a
permission notice identical to this one.
Since the Linux kernel and libraries are constantly changing, this
manual page may be incorrect or out-of-date. The author(s) assume no
responsibility for errors or omissions, or for damages resulting from
the use of the information contained herein. The author(s) may not
have taken the same level of care in the production of this manual,
which is licensed free of charge, as they might when working
professionally.
Formatted or processed versions of this manual, if unaccompanied by
the source, must acknowledge the copyright and authors of this work.
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)
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