ITMS400@indycms.iupui.edu ( Manjit Trehan) (09/25/90)
Is there any way to have the adduser program set passwords from a file. It seems to not use stdin to read the password, rather, opens the tty device to read the password (??). thanks, mst.
bhoughto@cmdnfs.intel.com (Blair P. Houghton) (09/26/90)
In article <24596@adm.BRL.MIL> ITMS400@indycms.iupui.edu ( Manjit Trehan) writes: > >Is there any way to have the adduser program set passwords from a >file. It seems to not use stdin to read the password, rather, >opens the tty device to read the password (??). On most systems you'd use makekey(3). --Blair "Most."
konczal@sunmgr.ncsl.nist.gov (Joe Konczal) (09/26/90)
It is not hard to use crypt(3) to write a program that will read a password from a file, encrypt it, and put it into /etc/passwd. Read the man page. It is not recommended to keep unencrypted passwords lying around, though, since your passwords will be only as secure as the file containing them. --Joe Konczal konczal@mail-gw.ncsl.nist.gov
brnstnd@kramden.acf.nyu.edu (Dan Bernstein) (09/26/90)
In article <24596@adm.BRL.MIL> ITMS400@indycms.iupui.edu (Manjit Trehan) writes: > Is there any way to have the adduser program set passwords from a > file. It's usually a bad idea to store plaintext passwords. > It seems to not use stdin to read the password, rather, > opens the tty device to read the password (??). Under BSD systems, the general solution to this problem is to run ``pty adduser'' with the input and output redirected whatever way you want. pty 3.001 and its first patch are available from me or via anonymous ftp to 128.122.128.22; they'll appear on c.s.unix as soon as Rich gets enough hate mail :-). ---Dan
PHILIP@ucc.uwindsor.ca (Philip Smith, Systems Programmer) (09/26/90)
Manjit, If you have the source to the passwd program then you can do what you want. I have done something similar to what you are looking for. Philip Smith Systems Programmer University of Windsor
bhoughto@cmdnfs.intel.com (Blair P. Houghton) (09/26/90)
In article <186@inews.intel.com> bhoughto@cmdnfs.intel.com (Blair P. Houghton) writes: >In article <24596@adm.BRL.MIL> ITMS400@indycms.iupui.edu ( Manjit Trehan) writes: >> >>Is there any way to have the adduser program set passwords from a >>file. It seems to not use stdin to read the password, rather, >>opens the tty device to read the password (??). > >On most systems you'd use makekey(3). Oops. makekey(8). crypt(3). --Blair "Mars needs women. Apollo needs a keyboard."
cliffs@playroom.Central.Sun.COM (Clifford C. Skolnick) (10/01/90)
In article <24596@adm.BRL.MIL> ITMS400@indycms.iupui.edu ( Manjit Trehan) writes: > >Is there any way to have the adduser program set passwords from a >file. It seems to not use stdin to read the password, rather, >opens the tty device to read the password (??). Ok, we can fool the getpass(3) routine into reading standard input, unless you are on a System V machine which you can hope the program will handle intself (I doubt it). Write a small wrapper C program that will issue a TIOCNOTTY ioctl(2) on standard input. This way when getpass(3) will be unable to open /dev/tty and will punt to standard input. -- Cliff Skolnick - Technical Consultant cliffs@east.sun.com [I only work for Sun, I do not speak for them] "The floggings will continue until morale improves"