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bornsoft
Contributor
Joined: 19 Feb 2009
Posts: 113
Location: Germany
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 Posted: Mon Nov 15, 2010 3:25 am Post subject: Need help making a struct for WinSock |
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Hi,
please can someone help me with the code below.
The script creates a socket but when i try to bind it to
an ip-address it fails with error 10049 ( WSAEADDRNOTAVAIL Can't assign requested address ).
(WSAEADDRNOTAVAIL sounds like the address is not in the right format, I tested host and network byte order but normally the funktion "inet_addr" should output the right format.)
It must have something to do with the structs "sockaddr_in" and "sockaddr". I did research on
internet for hours and this is I came up with. There must be something wrong, but I have no
Idea anymore.
Here is a link to a particular tutorial about this item.
http://www.cpp-home.com/tutorials/26_3.htm
And as attachment i add the winsock helpfile.
Thanks a lot in advance.
bornSoft
| Code: |
# API Functions
#DEFINE Function,htons
#DEFINE Function,htonl
#DEFINE Function,inet_addr
#DEFINE Command,WSAStartup
#DEFINE Command,WSACleanup
#DEFINE Command,WSAError
%%WS_VERSION_REQD = $101
%%AF_INET = 2
%%SOCK_STREAM = 1
%%IPPROTO_TCP = 6
# %%IP_Addr = 0.0.0.0
%%IP_Addr = "127.0.0.1"
%%Port = 5001
# WSAStarup
loadlib ws2_32.dll
%B = @fill(384)
%R = @LIB(ws2_32,WSAStartup,INT:,%%WS_VERSION_REQD,@addr("%B"))
WSAError
# Create Socket
%%Socket = @LIB(ws2_32,socket,INT:,%%AF_INET,%%SOCK_STREAM,%%IPPROTO_TCP)
WSAError
# structure sockaddr_in
%%in_family = @binary(WORD,%%AF_INET)
%%in_port = @binary(WORD,@htons(%%Port))
%%in_addr = @inet_addr(%%IP_Addr)
%%in_zero = @fill(8,00000000)
%%sockaddr_in = %%in_family%%in_port%%in_addr%%in_zero
# structure sockaddr
%%sa_family = @binary(WORD,%%AF_INET)
%%sa_data = @fill(14,%%sockaddr_in)
%S = %%sa_family%%sa_data
%L = @len(%S)
%R = @LIB(ws2_32,bind,INT:,%%Socket,@addr("%S"),@len(%S))
WSAError
info Binding Socket %%Socket to Address %%IP_Addr on Port %%Port was successful. @tab()
:WSACleanup
%R = @LIB(ws2_32,WSACleanup,INT:)
freelib ws2_32.dll
Stop
:WSAError
%R = @LIB(ws2_32,WSAGetLastError,INT:)
if @not(@zero(%R))
warn WSA-Error: %R @tab()
goto WSACleanup
end
exit
# API Functions
:htons
exit @LIB(ws2_32,htons,INT:,%1)
:htonl
exit @LIB(ws2_32,htonl,INT:,%1)
:inet_addr
exit @LIB(ws2_32,inet_addr,INT:,%1)
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winsock_hlp.zip |
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bornsoft
Contributor
Joined: 19 Feb 2009
Posts: 113
Location: Germany
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| Posted: Tue Nov 16, 2010 12:48 am Post subject: |
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Forget it, I must have been drunk when I studied the tutorials 
The sockaddr_in struct must not be included in the sockaddr struct, it is a replacement.
FYI here is the correct one.
| Code: |
# structure sockaddr_in
%%in_family = @binary(WORD,%%AF_INET)
%%in_port = @binary(WORD,@htons(%%Port))
%%in_addr = @binary(DWORD,@inet_addr(%%IP_Addr))
%%in_zero = @fill(8,00000000)
%S = %%in_family%%in_port%%in_addr%%in_zero
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I'm talking to myself. Crazy, isn't it?
.
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