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 two standard system shells /bin/sh and /bin/csh are returned. 

getusershell 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 or error. 

BUGS

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

September 02, 1992