Description:
Programming Windows Sockets.
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Client x server (absurd)
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Excuse my English school, I'm Brazilian. I have a client application and server. Is already in operation have some time. However, I do some speed tests and I was surprised by what happened, i ask for help to unravel: to do the speed test is a routine consultation where the client makes requests to the server 500, which are answered, giving a time of 20... more »
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Property handling of WSARecvFrom returns 10054(WSAECONNRESET)?
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I heard that overlapped I/O'ed WSARecvFrom may return 10054 (WSAECONNRESET) if the prior sending packet to the unreachable host failed and ICMP packet 'host unreachable' is received. If this occurs, what is the best handling of this case? As far as I know, I used this scheme: WSARecvFrom(); if(it returns 10054) retry WSARecvFrom() until it doesn't return... more »
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Cause of high NP Pool (nonpaged pool) in afd.sys?
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How can I find the cause of NP pool (nonpaged pool) peaking high of afd.sys? I tried verifier.exe and pooltag.exe however I cannot find the exact cause. I googled for it and found some forum threads which already discusses it, and someone say SO_SNDBUF,SO_RCVBUF and someone say 'too much issue of overlapped WSASend(To) and WSARecv(From)' can also cause the... more »
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Ryhmän sfnet.tori.myydaan.atk.ohjelma t virallinen kuvaus
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Siis .. VAUDE! _____________________ 08.05.2008 jää historiaan hetkenä joka kiistatta osoitti miten maailmanennätysvauhtia suorastaan megaromahtanut ydinvoiman kannatus konkretisoi laajassa rintamassa myös Suomessa. Miten tällainen saavutus on edes teoriassa mahdolista maassa, jossa ydinvastustaminen rinnastetaan... more »
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Why connect() does not block?
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Hello, Could you explain me why the connect() does not block? int my_socketpair(SOCKET socks[2]) { SOCKET listener = INVALID_SOCKET; int addrlen = sizeof(struct sockaddr_in); struct sockaddr_in addr; memset(&addr, 0, sizeof(addr)); if(socks){ socks[0] = socks[1] = INVALID_SOCKET; if((listener=socket(AF_INET, SOCK_STREAM, 0))!=INVALID_SOCKET){... more »
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Win2003 - NAT outbound mappings deleted for TCP connections
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Hello, I have configured NAT on Win2003 server (SP2). Local address for NAT is 192.168.25.x and global interface IP address is 10.0.1.179. Client application: runs on computer inside NAT Server application: runs on computer outside NAT Server listens for TCP connections on port no. 1334. Client connects... more »
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Winsock error 10049 on Windows Vista
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Hello all, I have been witnessing some very strange behavior of Winsock on Windows Vista SP1, and would like to share my findings to see if anyone could help me figure out the answer to what's wrong. I've been running a simple program which tests the behavior of Winsock when it comes to binding a UDP socket, binding a TCP socket and... more »
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LSP
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Hello everyone. I am very new to programming with raw sockets but have decided to take on a project where I will like to program a LSP (Layered Service Provider). Can anyone tell me what is the best method of learning on how to go about writing such an application ? I have downloaded the Windows 2003 Server SDK which contains some samples for LSP but still... more »
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SO_DONTROUTE
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I know this has been discussed before, but there seem not to be any particular solutions. Does anyone happen to know a way, or have an idea, so as to get a work around to Winsock ignoring SO_DONTROUTE option?
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