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DNS

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Posted by USER007   (124 posts)  Bio
Date Fri 10 Dec 2004 12:31 AM (UTC)

Amended on Fri 10 Dec 2004 12:39 AM (UTC) by USER007

Message
I installed the dns snippet, but I get these compiling errors:

Compiling o/comm.o....
comm.c: In function `new_descriptor':
comm.c:787: warning: unused variable `from'
comm.c: In function `close_socket':
comm.c:953: warning: implicit declaration of function `waitpid'
Compiling o/comments.o....

    struct sockaddr_in sock;
    struct hostent *from; <--- 787
    int desc;

        kill( dclose->ipid, SIGKILL );
	waitpid( dclose->ipid, &status, 0 ); <--- 953


Any thoughts?

SmaugFUSS /XP/SP2
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Posted by Nick Gammon   Australia  (23,133 posts)  Bio   Forum Administrator
Date Reply #1 on Fri 10 Dec 2004 12:39 AM (UTC)
Message
Looks like you need:

#include <netdb.h>

Try "man gethostbyname".

- Nick Gammon

www.gammon.com.au, www.mushclient.com
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Posted by USER007   (124 posts)  Bio
Date Reply #2 on Fri 10 Dec 2004 12:42 AM (UTC)
Message
The file has #include <netdb.h> in it. As for the "man gethostbyname" you lost me.
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Posted by Greven   Canada  (835 posts)  Bio
Date Reply #3 on Fri 10 Dec 2004 01:15 AM (UTC)

Amended on Fri 10 Dec 2004 01:24 AM (UTC) by Greven

Message
What Nick means is to use the manual pages that are commonly available through any *nix shell. In this case, just type in:

man gethostbyname

This will give you very specific details on the system function called gethostname, as well as giving any dependancies that are needed, like the include file.

As for your waitpid warming, checking "man waitpid", it say that you need:

#include <sys/types.h>
#include <sys/wait.h>

Make sure you have both of those in your include file.

Nobody ever expects the spanish inquisition!

darkwarriors.net:4848
http://darkwarriors.net
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Posted by David Haley   USA  (3,881 posts)  Bio
Date Reply #4 on Fri 10 Dec 2004 01:23 AM (UTC)
Message
Also, you didn't get errors, you got warnings. One of your warnings happens to be harmless (the unused one) and the implicit declaration might not matter, even if it's better not to have it. Did you get linker errors?

David Haley aka Ksilyan
Head Programmer,
Legends of the Darkstone

http://david.the-haleys.org
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Posted by USER007   (124 posts)  Bio
Date Reply #5 on Fri 10 Dec 2004 01:53 AM (UTC)
Message
The manuals didn't work, but I got both of the "warnings" fixed. :) I was missing the #include <sys/wait.h> in the file. As for the "from", it wasn't being used so I commented it out. Thanks for the help.
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Posted by Nick Gammon   Australia  (23,133 posts)  Bio   Forum Administrator
Date Reply #6 on Fri 10 Dec 2004 02:09 AM (UTC)
Message
I tried Google "man gethostbyname" - the first page that appeared was an example of that manual page.

- Nick Gammon

www.gammon.com.au, www.mushclient.com
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