NAME
getpass() — read a password
SYNOPSIS
#include <unistd.h>
char *getpass(const 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 terminates input and sends an interrupt signal
to the calling program before returning.
APPLICATION USAGE
getpass()
is not thread-safe. It is not async-cancel-safe.
A cancellation point may occur when a thread is executing
getpass().
WARNINGS
The return value points to static data
whose content is overwritten by each call.
Obsolescent Interfaces
getpass()
is to be obsoleted at a future date.
STANDARDS CONFORMANCE
getpass(): AES, SVID2, SVID3, XPG2, XPG3, XPG4
Printable version
