9.348 getlogin

POSIX specification:
http://www.opengroup.org/onlinepubs/9699919799/functions/getlogin.html

Gnulib module: getlogin

Portability problems fixed by Gnulib:

• This function is missing on some platforms: mingw, MSVC 9.

Portability problems not fixed by Gnulib:

• This function returns an empty string even when standard input is a tty on some platforms: HP-UX 11.11.