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Annotation of 43BSDReno/lib/libc/gen/getusershell.3, revision 1.1.1.1

1.1       root        1: .\" Copyright (c) 1985 The Regents of the University of California.
                      2: .\" All rights reserved.
                      3: .\"
                      4: .\" Redistribution and use in source and binary forms are permitted provided
                      5: .\" that: (1) source distributions retain this entire copyright notice and
                      6: .\" comment, and (2) distributions including binaries display the following
                      7: .\" acknowledgement:  ``This product includes software developed by the
                      8: .\" University of California, Berkeley and its contributors'' in the
                      9: .\" documentation or other materials provided with the distribution and in
                     10: .\" all advertising materials mentioning features or use of this software.
                     11: .\" Neither the name of the University nor the names of its contributors may
                     12: .\" be used to endorse or promote products derived from this software without
                     13: .\" specific prior written permission.
                     14: .\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
                     15: .\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
                     16: .\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
                     17: .\"
                     18: .\"    @(#)getusershell.3      6.4 (Berkeley) 6/23/90
                     19: .\"
                     20: .TH GETUSERSHELL 3  "June 23, 1990"
                     21: .UC 6
                     22: .SH NAME
                     23: getusershell, setusershell, endusershell \- get legal user shells
                     24: .SH SYNOPSIS
                     25: .nf
                     26: .B char *getusershell()
                     27: .PP
                     28: .B setusershell()
                     29: .PP
                     30: .B endusershell()
                     31: .fi
                     32: .SH DESCRIPTION
                     33: .I Getusershell
                     34: returns a pointer to a legal user shell as defined by the
                     35: system manager in the file 
                     36: .IR /etc/shells .
                     37: If 
                     38: .I /etc/shells
                     39: is unreadable or does not exist,
                     40: .I getusershell
                     41: behaves as if
                     42: .I /bin/sh
                     43: and
                     44: .I /bin/csh
                     45: were listed in the file.
                     46: .PP
                     47: .I Getusershell
                     48: reads the next
                     49: line (opening the file if necessary);
                     50: .I setusershell
                     51: rewinds the file;
                     52: .I endusershell
                     53: closes it.
                     54: .SH FILES
                     55: /etc/shells
                     56: .SH "SEE ALSO"
                     57: shells(5)
                     58: .SH DIAGNOSTICS
                     59: The routine
                     60: .I getusershell
                     61: returns a null pointer (0) on EOF.
                     62: .SH BUGS
                     63: All information
                     64: is contained in a static area
                     65: so it must be copied if it is
                     66: to be saved.

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