which is needed for things like S/KEY. We abuse the SRA_CONTINUE message
passing the password prompt there. That is usually NULL, so SRA
implementations usually ignore it. While I am here, if telnet_gets() fails
[user hit <eof> for example], then we exit.
that is what we provide pam_securetty(8) for.
Fix the -DNOPAM build option by allowing it to compile
(even though we don't use this source file when USE_PAM=no).
- It was originally referring to a bogus version of `line'.
(problem solved by using 'extern char *line' instead of 'extern char line[]')
- It wasn't stripping the leading "/dev/" off `line' before calling getttynam(3)
