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Implementing a shell

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# 8  
Old 11-14-2005
Quote:
Originally Posted by ununium
Closing stdin gives me an infinite loop.
It works for everyone else. You must have a bug.
# 9  
Old 11-14-2005
Quote:
Originally Posted by ununium
Is there a way to maybe modify the file descriptor table so that I replace stdout with the file I've just opened? How would I access the file descriptor table though?
open() and close() modify the file descriptor table. No, you cannot bypass them and fiddle with the kernel tables directly.

You need to start with the basics and work your way up. You're trying to write a shell, but you're having difficulty when you open and close files. You should consider a less ambitious project until you get a little bit more experience.
# 10  
Old 11-14-2005
Nevermind. I figured it out for anyone who cares:

open a file
dup2(file, 1)
execute
# 11  
Old 11-14-2005
Quote:
Originally Posted by Perderabo
open() and close() modify the file descriptor table. No, you cannot bypass them and fiddle with the kernel tables directly.

You need to start with the basics and work your way up. You're trying to write a shell, but you're having difficulty when you open and close files. You should consider a less ambitious project until you get a little bit more experience.
PS: Thanks for false information and then insulting me.
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