Commits on Aug 21, 2024

1. Add timeout for rexec's get_password (#3484) …

   ### What I did
   
   I added a timeout setting for the get_password function in rexec module so that automatic pipelines that does not expect password input will not get blocked. The current timeout setting is 10 sec.
   
   #### How I did it
   
   Add a SIGALRM signal before waiting for password input. 
   
   #### How to verify it
   
   Run a "show ip bgp summary" on SONiC Chassis Supversior and does not input password until it times out.
   
   #### Previous command output (if the output of a command-line utility has changed)
   
   Before adding such a mechanism, if you do not input password when run "rexec -c <cmd>" you will be blocked at the following output:
   ```
   Since the current device is a chassis supervisor, this command will be executed remotely on all linecards
   Password for username 'XXX':
   ```
   
   #### New command output (if the output of a command-line utility has changed)
   After adding such a mechanism, if you do not input password when run "rexec -c <cmd>" you will see a timeout message after 10 seconds.
   ```
   Since the current device is a chassis supervisor, this command will be executed remotely on all linecards
   Password for username 'XXX': 
   Aborted! Timeout when waiting for password input.
   ```

   

   BYGX-wcr committed Aug 21, 2024
   Configuration menu

   • View commit details
   • Copy full SHA for a37ab17
   • Browse repository at this point

   Copy the full SHA

   a37ab17 View commit details

   Browse the repository at this point in the history