unix - Simulate key presses in C -

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for example, want run:

ssh root@127.0.0.1 -p 2222

in c (via system) command. right after run that, asks input:

root@127.0.0.1's password:

then i'm expected type in password. how can in c code? please code on how simulate key presses? or there better way this?

there beautiful command expect

this common used tool. if need ssh, you'd better @ other posts generating key


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