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Full Discussion: password .c
Top Forums Programming password .c Post 302363111 by jim mcnamara on Monday 19th of October 2009 12:43:48 PM
Old 10-19-2009
Code:
/* mypass.c */
#include <stdio.h>
#include <unistd.h>
#include <string.h>

int main(int argc, char **argv)
{
    char *pswd="espana";
    char *result=getpass("Enter password");   
    if(strcmp(pswd, result)==0 )
       return 0;
    return 1;
    
}

Are you sure this is not homework? This makes no sense - anybody who is at the commandline prompt can type uname -a and get a response.

Code:
  ./mypass
  if [ $? -eq 0 ] ; then
      uname -a
  else
      echo 'bad password'
  fi

 

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SYSTEMD-ASK-PASSWORD-CONSOLE.SERVICE(8) 	       systemd-ask-password-console.service		   SYSTEMD-ASK-PASSWORD-CONSOLE.SERVICE(8)

NAME
systemd-ask-password-console.service, systemd-ask-password-console.path, systemd-ask-password-wall.service, systemd-ask-password-wall.path - Query the user for system passwords on the console and via wall SYNOPSIS
systemd-ask-password-console.service systemd-ask-password-console.path systemd-ask-password-wall.service systemd-ask-password-wall.path DESCRIPTION
systemd-ask-password-console.service is a system service that queries the user for system passwords (such as hard disk encryption keys and SSL certificate passphrases) on the console. It is intended to be used during boot to ensure proper handling of passwords necessary for boot. systemd-ask-password-wall.service is a system service that informs all logged in users for system passwords via wall(1). It is intended to be used after boot to ensure that users are properly notified. See the developer documentation[1] for more information about the system password logic. Note that these services invoke systemd-tty-ask-password-agent(1) with either the --watch --console or --watch --wall command line parameters. SEE ALSO
systemd(1), systemd-tty-ask-password-agent(1), wall(1) NOTES
1. developer documentation https://www.freedesktop.org/wiki/Software/systemd/PasswordAgents systemd 237 SYSTEMD-ASK-PASSWORD-CONSOLE.SERVICE(8)
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