Solved

gethostbyname

Posted on 1998-04-07
5
678 Views
Last Modified: 2013-12-26
UNIXer,

If I need to use gethostbyname in my program which is compile by gcc in SunSpace !
But I get ths following error message, so, what caI do ?

-------------------------------------------------------------------------
Undefined                       first referenced
 symbol                             in file
gethostbyname                       /var/tmp/cca000t71.o
ld: fatal: Symbol referencing errors. No output written to a.out
---------------------------------------------------------------------------------

Andrew
0
Comment
Question by:andrewyu
  • 3
5 Comments
 
LVL 2

Accepted Solution

by:
seedy earned 0 total points
ID: 1296238
Man page for 'gethostbyname' states:
   cc  [ flag ... ] file ... -lnsl [ library ...]

You need to link the 'nsl' library!
Cheers,
-Seedy-

0
 
LVL 2

Expert Comment

by:seedy
ID: 1296239
Andrewyu,

Please let me know why you rated this answer or the previous
one - 'DNS' under Unix Programming as 'C'?
Would you have liked anything else too?

you answering this would help me help others better.
Cheers.
0
 
LVL 84

Expert Comment

by:ozo
ID: 1296240
It doesn't appear that andrewyu has ever graded any answer.
0
 
LVL 2

Expert Comment

by:seedy
ID: 1296241
Oops!  Was this auto-graded?  How can I find the difference?
0
 

Expert Comment

by:Johannne1
ID: 24989403
I got the above solution but I also had to add lsocket.

gcc -lsocket -lnsl myprogram.c
0

Featured Post

Master Your Team's Linux and Cloud Stack!

The average business loses $13.5M per year to ineffective training (per 1,000 employees). Keep ahead of the competition and combine in-person quality with online cost and flexibility by training with Linux Academy.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Importing Special Characters in Dynamics GP Through Integration Manager 3 76
substring method in java 1 124
fizzArray  challenge 1 86
Problem to open Excel file 15 139
This is to be the first in a series of articles demonstrating the development of a complete windows based application using the MFC classes.  I’ll try to keep each article focused on one (or a couple) of the tasks that one may meet.   Introductio…
Introduction: Hints for the grid button.  Nested classes, templated collections.  Squash that darned bug! Continuing from the sixth article about sudoku.   Open the project in visual studio. First we will finish with the SUD_SETVALUE messa…
This video will show you how to get GIT to work in Eclipse.   It will walk you through how to install the EGit plugin in eclipse and how to checkout an existing repository.
A short tutorial showing how to set up an email signature in Outlook on the Web (previously known as OWA). For free email signatures designs, visit https://www.mail-signatures.com/articles/signature-templates/?sts=6651 If you want to manage em…

825 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question