06-09-2017
Quote:
Originally Posted by
bakunin
I am no expert for SCO, but in most UNIXes (and i presume in SCO too) the passwd utility clears the buffer before using stdin, which is the reason why a pipeline won't work (in fact this is the desired effect - passwd is not supposed to work that way).
UNIX even has the isatty() call for secure applications, to check whether stdin is a terminal or not, but I've mostly found these sort of apps ignore stdin and grab /dev/tty directly. This is handy since it allows things to successfully prompt for a password even when they're buried deep in a pipe chain.
10 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
I have to change more then 200 User at once
the password (security-dday).
The programm passwd will answers (new password + again)
How can i do this in a script?
thanks for answers (5 Replies)
Discussion started by: Erwin Stocker
5 Replies
2. UNIX for Dummies Questions & Answers
hello,
I don't why I can't change the password, when ever I try to run passwd I get the problem??!!!
unixws1:ldb> passwd
passwd: Changing password for ldb
Permission denied
regards,
me (2 Replies)
Discussion started by: geoquest
2 Replies
3. UNIX for Dummies Questions & Answers
Can anyone explain the second and third fields in /etc/passwd.
Thanks. (2 Replies)
Discussion started by: nguda
2 Replies
4. HP-UX
Dear frnds,
I have 250 users in passwd file with different passwords, how i can change the password to username+99. pls help out.
regards (6 Replies)
Discussion started by: jestinabel
6 Replies
5. Shell Programming and Scripting
I have left unix for a long time.Almost forget everthing.:(
Anybody can tell me what is the meaning?
wc /etc/passwd
9 16 1155 /etc/passwd
and
$ wc -l /etc/passwd
wc -l /etc/passwd
9 /etc/passwd (1 Reply)
Discussion started by: zhshqzyc
1 Replies
6. Solaris
Hi Folks,
I have Solaris 10, latest release.
We have passwd aging set in /etc/defalut/passwd.
I have an account that passwd should never expire. Acheived by emptying associated users shadow file entries for passwd aging.
When I reset the users passwd using passwd command, it re enables... (3 Replies)
Discussion started by: BG_JrAdmin
3 Replies
7. AIX
Does anyone know when AIX started using /etc/security/passwd instead of /etc/passwd to store encrypted passwords? (1 Reply)
Discussion started by: Anne Neville
1 Replies
8. Shell Programming and Scripting
Hi,
I've a problem regarding understanding of result of passwd -s command.
> passwd -s
abc PS 05/24/12 0 441
I'm not a super user. But i need to write a simple code for checking password expiry and send an email to the team id. Is there any other command or way to achieve this?... (6 Replies)
Discussion started by: sam_bd
6 Replies
9. UNIX for Dummies Questions & Answers
how to Change the % prompt to - prompt in unix
:wall:
---------- Post updated at 07:40 AM ---------- Previous update was at 07:38 AM ----------
How To display the last modification time of any file in unix
---------- Post updated at 07:40 AM ---------- Previous update was at 07:40 AM... (2 Replies)
Discussion started by: manjiri sawant
2 Replies
10. Solaris
Hi,
on sunfire v890 unable to move from rsc prompt to ok prompt, i have executed the command break. (9 Replies)
Discussion started by: manoj.solaris
9 Replies
LEARN ABOUT CENTOS
getpass
GETPASS(3) Linux Programmer's Manual GETPASS(3)
NAME
getpass - get a password
SYNOPSIS
#include <unistd.h>
char *getpass( const char *prompt);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
getpass():
Since glibc 2.2.2:
_BSD_SOURCE ||
(_XOPEN_SOURCE >= 500 ||
_XOPEN_SOURCE && _XOPEN_SOURCE_EXTENDED) &&
!(_POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600)
Before glibc 2.2.2:
none
DESCRIPTION
This function is obsolete. Do not use it. If you want to read input without terminal echoing enabled, see the description of the ECHO
flag in termios(3).
The getpass() function opens /dev/tty (the controlling terminal of the process), outputs the string prompt, turns off echoing, reads one
line (the "password"), restores the terminal state and closes /dev/tty again.
RETURN VALUE
The function getpass() returns a pointer to a static buffer containing (the first PASS_MAX bytes of) the password without the trailing new-
line, terminated by a null byte ('