MirBSD manpage: endusershell(3), getusershell(3), setusershell(3)

GETUSERSHELL(3)            BSD Programmer's Manual             GETUSERSHELL(3)

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 a pointer to a legal user shell as
     defined by the system manager in the file /etc/shells. If /etc/shells is
     unreadable or does not exist, getusershell() behaves as if only /bin/sh,
     /bin/csh and /bin/mksh were listed in the file.

     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 on EOF.

SEE ALSO

     shells(5)

HISTORY

     The getusershell() function appeared in 4.3BSD.

BUGS

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

MirBSD #10-current               June 4, 1993                                1