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0

Here's an example. I'll try and use my Rust program to wrap scp:

fn spawn_scp(host: &str, path: &str) -> std::process::Output 
 let a = vec![format!(":",host, path), format!("-gc.log",host)];

 let output = Command::new("scp")
 .args(&a)
 .output()
 .ok().expect("Failed to execute.");
 return output;

If I pass in an unknown host and some path, scp's supposed to give me the host's key fingerprint and then ask me for the password, which it does:

Are you sure you want to continue connecting (yes/no)

And it lets me type in "yes" and continue. But from the std::process::Command docs:

Stdin is not inherited from the parent and any attempt by the child process to read from the stdin stream will result in the stream immediately closing.

Why does it let me type in "yes" instead of closing?

rust

share|improve this question

asked Mar 21 at 23:44

iveoriveor

1

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  are you sure scp has read your input ? That not because your terminal let you write thing that scp can read them. scp could also read stderr for interactive input that a common idiom: unix.stackexchange.com/questions/452809/…
  
  – Stargateur
  Mar 21 at 23:56
  

  
  
  
  

add a comment | 

0

Here's an example. I'll try and use my Rust program to wrap scp:

fn spawn_scp(host: &str, path: &str) -> std::process::Output 
 let a = vec![format!(":",host, path), format!("-gc.log",host)];

 let output = Command::new("scp")
 .args(&a)
 .output()
 .ok().expect("Failed to execute.");
 return output;

If I pass in an unknown host and some path, scp's supposed to give me the host's key fingerprint and then ask me for the password, which it does:

Are you sure you want to continue connecting (yes/no)

And it lets me type in "yes" and continue. But from the std::process::Command docs:

Stdin is not inherited from the parent and any attempt by the child process to read from the stdin stream will result in the stream immediately closing.

Why does it let me type in "yes" instead of closing?

rust

share|improve this question

asked Mar 21 at 23:44

iveoriveor

1

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  are you sure scp has read your input ? That not because your terminal let you write thing that scp can read them. scp could also read stderr for interactive input that a common idiom: unix.stackexchange.com/questions/452809/…
  
  – Stargateur
  Mar 21 at 23:56
  

  
  
  
  

add a comment | 

Here's an example. I'll try and use my Rust program to wrap scp:

fn spawn_scp(host: &str, path: &str) -> std::process::Output 
 let a = vec![format!(":",host, path), format!("-gc.log",host)];

 let output = Command::new("scp")
 .args(&a)
 .output()
 .ok().expect("Failed to execute.");
 return output;

If I pass in an unknown host and some path, scp's supposed to give me the host's key fingerprint and then ask me for the password, which it does:

Are you sure you want to continue connecting (yes/no)

And it lets me type in "yes" and continue. But from the std::process::Command docs:

Stdin is not inherited from the parent and any attempt by the child process to read from the stdin stream will result in the stream immediately closing.

Why does it let me type in "yes" instead of closing?

rust

share|improve this question

asked Mar 21 at 23:44

iveoriveor

1

fn spawn_scp(host: &str, path: &str) -> std::process::Output 
 let a = vec![format!(":",host, path), format!("-gc.log",host)];

 let output = Command::new("scp")
 .args(&a)
 .output()
 .ok().expect("Failed to execute.");
 return output;

Are you sure you want to continue connecting (yes/no)

share|improve this question

asked Mar 21 at 23:44

iveoriveor

1

share|improve this question

asked Mar 21 at 23:44

iveoriveor

1

asked Mar 21 at 23:44

iveoriveor

1

asked Mar 21 at 23:44

iveoriveor

1