Help with system calls

[december_beauty]

I am writing a program which
a) accepts a command as a string
b) breaks the string into separate arguements
Eg: string : ls -l
argv[0]=ls arg[1]=-l
When I read the string using gets, it works fine. But when I use the
read(), it doesn't work.
I know how to parse the string and break them into individual
arguement, I am not happy with what I have coded it. Is there a
solution for this on the internet?
c) I need to exit when it presses ctrl-D. I don't know how to catch
ctrl-D. I tried a few things like, checking the first character of
the string with ascii value of ctrl-D, it's not working.
d) Also does anyone know how to empty the arrays?
PLEASE HELP..

[Emmanuel Delahaye]

december_beauty wrote on 30/09/05 :

I am writing a program which
a) accepts a command as a string
b) breaks the string into separate arguements
Eg: string : ls -l
argv[0]=ls arg[1]=-l
When I read the string using gets, it works fine.
It's not. gets() is unsafe and deprecated. Use fgets() and read the
manual carefully (fgets() takes the '\n' when there is room enough).

But when I use the
read(), it doesn't work.
Dunno. Not a C-function. Why don't you stick to the standard ? If you
insist, you must ask a newsgroup that is related to programming on your
system.
I know how to parse the string and break them into individual
arguement, I am not happy with what I have coded it. Is there a
solution for this on the internet?
Because I know by heart the content of the two billions web pages on
the Net, my answer is yes.

Come on. Switch your brain on and don't ask silly questions... Google
is your friend...

BTW, why don't you post your attempts for a review ?
c) I need to exit when it presses ctrl-D. I don't know how to catch
ctrl-D.
Test the value returned by the input function. fgets() returns NULL on
end of reading.
I tried a few things like, checking the first character of
the string with ascii value of ctrl-D, it's not working.
Of course not. This is done by the lower level layers.
d) Also does anyone know how to empty the arrays?

You can't. Explain what you meant exactly with an example.

--
Emmanuel
The C-FAQ: http://www.eskimo.com/~scs/C-faq/faq.html
The C-library: http://www.dinkumware.com/refxc.html

"Mal nommer les choses c'est ajouter du malheur au
monde." -- Albert Camus.

[Mabden]

"december_beauty" <km********@indiatimes-dot-com.no-spam.invalid> wrote
in message
news:43***********************@authen.white.readfr eenews.net...

I am writing a program which
b) breaks the string into separate arguements

No e.

--
Mabden