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.\" Copyright (c) 1985 Regents of the University of California.
.\" All rights reserved.  The Berkeley software License Agreement
.\" specifies the terms and conditions for redistribution.
.\"
.\"	@(#)getusershell.3	6.2 (Berkeley) 12/1/86
.\"
.TH GETUSERSHELL 3  "December 1, 1986"
.UC 6
.SH NAME
getusershell, setusershell, endusershell \- get legal user shells
.SH SYNOPSIS
.nf
.B char *getusershell()
.PP
.B setusershell()
.PP
.B endusershell()
.fi
.SH DESCRIPTION
.I Getusershell
returns a pointer to a legal user shell as defined by the
system manager in the file 
.IR /etc/shells .
If 
.I /etc/shells
is unreadable or does not exist,
.I getusershell
behaves as if
.I /bin/sh
and
.I /bin/csh
were listed in the file.
.PP
.I Getusershell
reads the next
line (opening the file if necessary);
.I setusershell
rewinds the file;
.I endusershell
closes it.
.SH FILES
/etc/shells
.SH "SEE ALSO"
shells(5)
.SH DIAGNOSTICS
The routine
.I getusershell
returns a null pointer (0) on EOF.
.SH BUGS
All information
is contained in a static area
so it must be copied if it is
to be saved.

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