getusershell(3) [bsd man page]

GETUSERSHELL(3) 					     Library Functions Manual						   GETUSERSHELL(3)

NAME

       getusershell, setusershell, endusershell - get legal user shells

SYNOPSIS

       char *getusershell()

       setusershell()

       endusershell()

DESCRIPTION

       Getusershell  returns  a pointer to a legal user shell as defined by the system manager in the file /etc/shells.  If /etc/shells is unread-
       able or does not exist, getusershell behaves as if /bin/sh and /bin/csh were listed in the file.

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

FILES

       /etc/shells

SEE ALSO

       shells(5)

DIAGNOSTICS

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

BUGS

       All information is contained in a static area so it must be copied if it is to be saved.

4.3 Berkeley Distribution					 November 30, 1988						   GETUSERSHELL(3)

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