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 does not exist, the four locations of the two standard system shells /bin/sh, /bin/csh, /usr/bin/sh and /usr/bin/csh are returned. 

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

FILES

/etc/shells

/bin/sh

/bin/csh

/usr/bin/sh

/usr/bin/csh

DIAGNOSTICS

The routine getusershell() returns a NULL pointer (0) on EOF or error. 

BUGS

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

Solbourne Computer, Inc.  —  6 October 1987