compiling socket client and server on cygwin

[Eugene A]

Hello.


I am trying to compile a linux socket server and a client in cygwin on
windows. The g++ version is 3.3.1. The source was obtained from this
location:

http://www.linuxgazette.com/issue74/tougher.html

ServerSoccket.cpp apparently compiles OK. Socket.cpp has a problem. Here's
my output:

$ make -f Makefile.txt
g++ -c -o ServerSocket.o ServerSocket.cpp
g++ -c -o Socket.o Socket.cpp
Socket.cpp: In member function `int Socket::recv(std::string&) const':
Socket.cpp:135: error: `cout' undeclared in namespace `std'
Socket.cpp: In member function `bool Socket::connect(std::basic_string<char,
std::char_traits<char>, std::allocator<char> >, int)':
Socket.cpp:158: error: `inet_pton' undeclared (first use this function)
Socket.cpp:158: error: (Each undeclared identifier is reported only once for
each function it appears in.)
make: *** [Socket.o] Error 1

How can cout be undeclared in C++? Isnt that one of the basic basics?

Please help,

Eugene.

 

[John Harrison]

Hello.


I am trying to compile a linux socket server and a client in cygwin on
windows. The g++ version is 3.3.1. The source was obtained from this
location:

http://www.linuxgazette.com/issue74/tougher.html

ServerSoccket.cpp apparently compiles OK. Socket.cpp has a problem. Here's
my output:

$ make -f Makefile.txt
g++ -c -o ServerSocket.o ServerSocket.cpp
g++ -c -o Socket.o Socket.cpp
Socket.cpp: In member function `int Socket::recv(std::string&) const':
Socket.cpp:135: error: `cout' undeclared in namespace `std'
Socket.cpp: In member function `bool Socket::connect(std::basic_string<char,
std::char_traits<char>, std::allocator<char> >, int)':
Socket.cpp:158: error: `inet_pton' undeclared (first use this function)
Socket.cpp:158: error: (Each undeclared identifier is reported only once for
each function it appears in.)
make: *** [Socket.o] Error 1

How can cout be undeclared in C++? Isn't that one of the basic basics?

Please help,

Look at the code, the author has failed to include <iostream> which is the
header file that defined std::cout. Include <iostream> in Socket.cpp and you
should be OK.

john

 

[Jorge Rivera]

Hello.


I am trying to compile a linux socket server and a client in cygwin on
windows. The g++ version is 3.3.1. The source was obtained from this
location:

I think you might be doing unnecessary work. I ported a small library
of code that uses Linux sockets to Windows sockets with minimal
modifications (A few #ifdef's....).

Is the rest of your project dependent on Unix standards?

JLR

 

[Eugene A]

Socket.cpp: In member function `bool Socket::connect(std::basic_string<char,
std::char_traits<char>, std::allocator<char> >, int)':
Socket.cpp:158: error: `inet_pton' undeclared (first use this function)
Socket.cpp:158: error: (Each undeclared identifier is reported only once for
each function it appears in.)
make: *** [Socket.o] Error 1

How can cout be undeclared in C++? Isn't that one of the basic basics?

Please help,

Look at the code, the author has failed to include <iostream> which is the
header file that defined std::cout. Include <iostream> in Socket.cpp and you
should be OK.

john

Thanks. That did work. Weird I did not see it myself. But I still have the
second error left. I do not know what inet_pton is. I know it is some kind
of function, but that's about it.

Eugene.

 

[Eugene A]

I think you might be doing unnecessary work. I ported a small library
of code that uses Linux sockets to Windows sockets with minimal
modifications (A few #ifdef's....).

Is the rest of your project dependent on Unix standards?

JLR

It is not really a project. I have not touched C++ in quite a while. I
thought if I could get this to work it could be a good experience.

Eugene.

 

[John Harrison]

Socket.cpp: In member function `bool Socket::connect(std::basic_string<char,
std::char_traits<char>, std::allocator<char> >, int)':
Socket.cpp:158: error: `inet_pton' undeclared (first use this function)
Socket.cpp:158: error: (Each undeclared identifier is reported only

once
for

each function it appears in.)
make: *** [Socket.o] Error 1

How can cout be undeclared in C++? Isn't that one of the basic basics?

Please help,

Look at the code, the author has failed to include <iostream> which is the
header file that defined std::cout. Include <iostream> in Socket.cpp and you
should be OK.

john

Thanks. That did work. Weird I did not see it myself. But I still have the
second error left. I do not know what inet_pton is. I know it is some kind
of function, but that's about it.

Eugene.

I guess, but it's not a standard function so its off topic in this group.

Quick google search turned up the following

http://www.cygwin.com/ml/cygwin/2002-04/msg00043.html

inet_pton is not supported in Cygwin as of April 2002.

Better take this to the experts I think.

john

 

[Eugene A]

I guess, but it's not a standard function so its off topic in this group.

Quick google search turned up the following

http://www.cygwin.com/ml/cygwin/2002-04/msg00043.html

inet_pton is not supported in Cygwin as of April 2002.

Better take this to the experts I think.

john

Hmmmm.... That means back to square one. John, is there a place where I can
find any other example of C++ socket programming. It does not have to be
cygwin specific - something that compiles, works, and the code that I can
dissect.

Thanks,

Eugene.

 

[Karl Heinz Buchegger]

Hmmmm.... That means back to square one. John, is there a place where I can
find any other example of C++ socket programming. It does not have to be
cygwin specific - something that compiles, works, and the code that I can
dissect.

For your inet_pton problem.

A quick google search turned up the following link
http://cvsweb.netbsd.org/bsdweb.cgi/src/lib/libc/net/Attic/inet_pton.c

which seems to hold an implementation of that function.
I have not looked through the function if it uses some
other system dependent function.

 

[Default User]

Hmmmm.... That means back to square one. John, is there a place where I can
find any other example of C++ socket programming. It does not have to be
cygwin specific - something that compiles, works, and the code that I can
dissect.

You need to find a resource specific to your implementation. Cygwin has
a number of mailing lists, you should investigate them.




Brian Rodenborn

 

[Alex Vinokur]

John, is there a place where I can
find any other example of C++ socket programming. It does not have to be
cygwin specific - something that compiles, works, and the code that I can
dissect.

[snip]

C++ stream-compatible TCP/IP sockets can be seen at http://alexvn.freeservers.com/s1/sock.html.
The project has been compiled with GNU g++ version 3.3.1 (cygming special):
$ g++ *.cpp -o sock_cyg.exe // CYGWIN
$ g++ -mno-cygwin *.cpp -o sock_mgw.exe // MINGW

 

[Peter Jansson]

C++ stream-compatible TCP/IP sockets can be seen at http://alexvn.freeservers.com/s1/sock.html.

No, I get an "404 Error -- File Not Found" error. Is itomewhere else?

Regards,
Peter Jansson
http://jansson.net/

 

[AlesD]

No, I get an "404 Error -- File Not Found" error. Is itomewhere else?

Regards,
Peter Jansson
http://jansson.net/

Try this one:

http://sourceforge.net/projects/cpp-sockets/

 

[Alex Vinokur]

I hope now it works.

Try this one:

http://sourceforge.net/projects/cpp-sockets/

Yes, this is one of two download sites for C++ stream-compatible TCP/IP sockets:
http://sourceforge.net/projects/cpp-sockets
http://alexvn.freeservers.com/s1/zip_dir//sock.zip (via http://alexvn.freeservers.com/s1/sock.html only).