c4 packets

IPhone ClientAndServerThe implementation case of inter-stick packet problem solving is described in this article. If yourIPhoneThe App mustServerWhen data is exchanged, the server may encounter a situation where two messages are sent consecutively: The first message is received accurately, but the second message is not completely received. You can try the Code provided in this post on the CocoaChina forum to solve the problem of sticking packets betwe

CocoaAsyncSocket + Protobuf handles packet sticking and packet splitting issues, cocoaasyncsocket sticks to packets In the previous article "ProtocolBuffer setup and demo for iOS", we shared the establishment of the environment. We used the famous github framework cococoaasynsocket for IM communication with the server, the data medium between the server and server is ProtoBuf. Next, we also encountered the problem of unpacking and sticking to the pack

Background technology: In the process of database development, developers first establish a storage package on the Oracle database on the test server. After the complete program is compiled, it must be manually transplanted to the database server of the formal application, therefore, porting is inconvenient and cumbersome. Even more than one person can overwrite some data at the same time. To avoid unnecessary troubles, we can solve the above problems in one way. Method Content: Oracle data

Tcpdump is used to capture packets and tcpdump is incomplete. The http packet of the post request sent by the client is captured by tcpdump only a little bit (the packet length is correct, but the actual content is indeed different ): In win, wireshark is used to capture packets. The length and content are normal: Cause Analysis: When Tcpdump is used for packet capture, the length of the captured dat

Udp error packets. See the following code $ wordHELLO; $ confarray (array (ip10.1.146.20., port2001), array (ip10.1.146.20., port2002); functionudpGet ($ word, $ ip, $ port) {$ socksocke problem See the following code. $ Word = 'hello '; $ Conf = array ( Array ('IP' => '10. 1.146.20.', 'port' => 2001 ), Array ('IP' => '10. 1.146.20.', 'port' => 2002) ); Function udpGet ($ word, $ ip, $ port) { $ Sock = socket_create (AF_INET, SOCK_DGRAM, SOL_UDP ); So

Explanation of TCP/UDP data packets (4): TCP data packet instance ParsingInterpretation of TCP/UDP data packets (III): UDP data packet structure http://www.bkjia.com/net/201307/224715.html1 , A complete TCP packet 11:43:26. 893811 IP 10.135.1.108.39936> 10.135.38.95.8090: P (246) ack 1 win 12

Explanation of TCP/UDP data packets (1): IP data packet structure 1. Graph IP data packets consist of four bytes per line (32 bits) from the header and Data) the first part contains at least 20 bytes (5 rows), and the option part is optional. [length of the option to be supplemented] 2. The first part is fixed. 1. The first line is the IP version number four digits, header Length: 4 bits, service type: 8 bi

https://icpcarchive.ecs.baylor.edu/index.php?option=com_onlinejudgeitemid=8page=show_problem problem=2640http://www.spoj.com/problems/SPOINTS/en/http://poj.org/problem?id=3805http://judge.u-aizu.ac.jp/onlinejudge/description.jsp?id=1298To have a straight line divided into two convex bags, two convex packets do not intersect, not tangent is necessaryIn the absence of templates, my code, over the Poj,uva, and Spoj, but not aoj, and the correct code on t

void rxdstring_decomposition (unsigned char rxdstring[])? Splitting a packet into multiple commands{? unsigned char *TEMPRXDP;? unsigned char i=0,j;? TEMPRXDP = rxdstring;? Rxdstring for received command packets? Quantity_commands = 0;? Record the number of commands in a packet? for (i=0;i? {A command length of 14 bits. The start and end bits are "ZZ" and "CC".?? if ((*temprxdp== ' z ') (* (temprxdp+1) = = ' Z ') (* (temprxdp+12) = = ' C ') (* (tem

Linux with tcpdump long-term packet capture operation method command: tcpdump-ieth1-s0-wk.cap last added is to make this command in the background for long-term execution, otherwise close sshclient tcpdump command will stop on its own. Then log on to linux again and perform the following operations-bash-3.00 # ps-ef | greptcpdumppcap3660101 on Linux. TcpdumpOperation Command for capturing packets for a long time: Tcpdump-I eth1-s 0-w k. cap Add

__n, int __flags, __sockaddr_ ARG __addr, socklen_t *__restrict __addr_len)You can see the same function prototype as the Windows platform. However, in its man manual, there is no specific description of the UDP packet that is larger than the receive buffer condition.The write code test shows thatwhen BUF is smaller than the UDP packet size ,recvfrom () still returns the number of bytes copied to the buffer , and the caller is not aware of the UDP packet being truncated.4 Writing Code co

Zlib library decompress gzip data in HTTP packets _ bluemonster _ Sina Blog Decompress the gzip data in the HTTP packet from the zlib library[This blog contains images] (11:27:20)Reprinted tokenTags:ZlibHTTPGzipExtractItClassification: Laboratory When capturing the HTTP packet, it is found that the response packets of many websites are gzip compressed data and stored in one or more chunks (see chunke

I used navicat to import 6 M data packets to mysql in the virtual space. I downloaded a NavicatLite8.2, but there was always a problem during the connection... is it because the prompt content is as follows: 5-5-accessdeniedforuser 'User I entered username' @ use navicat to import 6 M data packets to mysql in the virtual space I downloaded a Navicat Lite 8.2 file, but there is always a problem during the c

Generally, Wireshark cannot directly capture local loop data packets, such as writing a small socketProgramThe client and server are both local. Such data packets Wireshark cannot be captured directly. However, you can achieve this through the following Configuration: In Windows, enter the following statement in the command line: Route add 192.168.1.106 mask 255.255.255.255 192.168.1.1metric 1 192.168

Use wfetch to view HTTP request and response packets The wfetch interface is simple, but it already meets my general needs. It is really troublesome to learn how to use the javamail software package to send and receive emails in the Telnet window. Use a text editor to go back and forth to view the generated. eml file, and wait for the SMTP server to respond to the message in the command line Prompt window... Now we have this wfetch, but it is much e

"Shoushoujie" is coming. Did you get the red envelope ?, Red Packets Redisson's volume leaders, Next to the annual shoushou festival, I shouted after the festival, but the goose was useless! Buy, buy, and continue! When it comes to buying and buying, the current kids shoes may not worry about money or not, but are they even more worried about whether they can get the goods or whether any of the merchant's red pack