GETUSERSHELL(3) 					   BSD Library Functions Manual 					   GETUSERSHELL(3)

NAME

     getusershell, setusershell, endusershell -- get valid user shells

LIBRARY

     Standard C Library (libc, -lc)

SYNOPSIS

     #include <unistd.h>

     char *
     getusershell(void);

     void
     setusershell(void);

     void
     endusershell(void);

DESCRIPTION

     The getusershell() function returns a pointer to a valid user shell as defined by the system manager in the shells database as described in
     shells(5).  If the shells database is not available, getusershell() behaves as if /bin/sh and /bin/csh were listed.

     The getusershell() function reads the next line (opening the file if necessary); setusershell() rewinds the file; endusershell() closes it.

FILES

     /etc/shells

DIAGNOSTICS

     The routine getusershell() returns a null pointer (0) on EOF.

SEE ALSO

     nsswitch.conf(5), shells(5)

HISTORY

     The getusershell() function appeared in 4.3BSD.

BUGS

     The getusershell() function leaves its result in an internal static object and returns a pointer to that object.  Subsequent calls to
     getusershell() will modify the same object.

BSD
								 November 23, 2004							       BSD