getusrshl(3B)

get legal user shells

From the original Amiga UNIX 2.1 manual. Some things it mentions may not be in this release.

NAME

getusershell, setusershell, endusershell - get legal user shells

SYNOPSIS

cc [ flag... ] file ... -lucb
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 locations of the standard system shells, /usr/bin/csh, /usr/bin/sh, and /usr/bin/ksh are returned. getusershell reads the next line (opening the file if necessary); setusershell rewinds the file; endusershell closes it.

FILES

/etc/shells
/usr/bin/csh
/usr/bin/ksh
/usr/bin/sh

RETURN VALUE

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

NOTES

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