getpass(3C)
NAME
getpass − read a password
SYNOPSIS
char ∗getpass (prompt)
char ∗prompt;
DESCRIPTION
getpass reads up to a newline or EOF from the file /dev/tty, after prompting on the standard error output with the null-terminated string prompt and disabling echoing. A pointer is returned to a null-terminated string of at most 8 characters. If /dev/tty cannot be opened, a NULL pointer is returned. An interrupt will terminate input and send an interrupt signal to the calling program before returning.
FILES
/dev/tty
SEE ALSO
WARNING
The above routine uses <stdio.h>, which causes it to increase the size of programs not otherwise using standard I/O, more than might be expected.
BUGS
The return value points to static data whose content is overwritten by each call.
CX/UX Programmer’s Reference Manual