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getpass(3) [bsd man page]

GETPASS(3)						     Library Functions Manual							GETPASS(3)

NAME
getpass - read a password SYNOPSIS
char *getpass(prompt) char *prompt; DESCRIPTION
Getpass reads a password from the file /dev/tty, or if that cannot be opened, from the standard input, after prompting with the null-termi- nated string prompt and disabling echoing. A pointer is returned to a null-terminated string of at most 8 characters. FILES
/dev/tty SEE ALSO
crypt(3) BUGS
The return value points to static data whose content is overwritten by each call. 7th Edition May 15, 1985 GETPASS(3)

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GETPASS(3)						   BSD Library Functions Manual 						GETPASS(3)

NAME
getpass -- get a password LIBRARY
Standard C Library (libc, -lc) SYNOPSIS
#include <pwd.h> #include <unistd.h> char * getpass(const char *prompt); DESCRIPTION
The getpass() function displays a prompt to, and reads in a password from, /dev/tty. If this file is not accessible, getpass() displays the prompt on the standard error output and reads from the standard input. The password may be up to _PASSWORD_LEN (currently 128) characters in length. Any additional characters and the terminating newline charac- ter are discarded. The getpass() function turns off character echoing while reading the password. RETURN VALUES
The getpass() function returns a pointer to the null terminated password. FILES
/dev/tty SEE ALSO
crypt(3), readpassphrase(3) HISTORY
A getpass() function appeared in Version 7 AT&T UNIX. BUGS
The getpass() function leaves its result in an internal static object and returns a pointer to that object. Subsequent calls to getpass() will modify the same object. The calling process should zero the password as soon as possible to avoid leaving the cleartext password visible in the process's address space. Upon receipt of a SIGTSTP, the input buffer will be flushed, so any partially typed password must be retyped when the process continues. BSD
June 4, 1993 BSD

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