topic Re: /dev/tty and getpass() in Operating System - HP-UX

/dev/tty and getpass()

JUP — Wed, 07 Jul 2004 22:58:07 GMT

Hi

I have a C program that calls getpass() on a HP-UX 11.0 system. However getpass fails because it has a problem reading /dev/tty. However my permissions on /dev/tty are as follows:

crw-rw-rw- 1 bin bin 207 0x000000 Jul 1 13:28 /dev/tty

The program works on another HP-UX 11 box with the same permissions as the above.

Any help would be much appreciated ?

Thanks in advance
JUP

Re: /dev/tty and getpass()

Muthukumar_5 — Thu, 08 Jul 2004 00:05:33 GMT

Hai,

Did you try it with a simple program to check the getpass() call.

I have tried it on 11.23 as,

/* test.c */
#include
main() {
const char *prompt="/dev/tty";
if ( getpass(prompt) == NULL ) {
printf ("Error in reading problem\n");
exit (1);
}
exit (0);
}

It is prompting for /dev/tty. But there is needed to stop the program.

Use debugger and Check this on both machines.

Regards,
Muthukumar.

Re: /dev/tty and getpass()

JUP — Thu, 08 Jul 2004 01:05:12 GMT

The getpass(0 routine fails. My guess is that /dev/tty has failed to open.

How can I test ?

Re: /dev/tty and getpass()

Nicolas Dumeige — Thu, 08 Jul 2004 02:56:59 GMT

Hello,

Dealing with the tty is getpass job, I think you don't even need to identify the tty or even mention it.

char *temp;
temp = (char *)getpass ("Password: ");

How do you use getpass and what is the exact error message ?

Nicolas