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Sendto Example

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It is unlikely that you will be able to do a better job implementing this sort of protocol than the TCP people already have, without a significant investment of time. 5.7 and about this book, I actually have it, and read some of it, but unfortunately, with a tight schedule I don't the luxury of reading alot of it these, but I Macnetworkprog mailing list ([email protected]) Help/Unsubscribe/Update your Subscription: This email sent to [email protected] _______________________________________________ Do not post admin requests to the list. How can I prove its value?

It has been added later on and is not widely supported. Invalid server/host name.... Streaming data via UDP is not multicast. Which guide are you using? –Lightness Races in Orbit Apr 12 at 11:39 Oh, or you could use the destination MAC address per austinmarton.wordpress.com/2011/09/14/… –Lightness Races in Orbit Apr

Sendto Example

The numeric data is not valid. Destination address required. Just remember, Semper Gumbi - always be flexible!

However, the socket will then only accept incoming messages coming from the address you specify in connect() as well - which might not be desired for broadcast traffic since there should Yes No Tell us more Flash Newsletter | Contact Us | Privacy Statement | Terms of Use | Trademarks | © 2016 Microsoft © 2016 Microsoft

TOC Collapse the table of content Expand the table of content This documentation is archived and is not being maintained. Udp Socket Programming In C The only thing you could do it broadcast the traffic within your local network. bind() is not used to define the target address. –alk Jun 23 '14 at 9:28 And in any case what's the problem with using sendto()? –EJP Jun 23 '14 Post your question and get tips & solutions from a community of 418,744 IT Pros & Developers.

The specified IpRange already exists. ... That means if you have 100 clients connected, you must send exactly the same data 100-times, once to each of the clients that shall receive it. Does Voldemort have any hobbies? Bad protocol option.

Udp Socket Programming In C

This means that the answers haven't had time to be read by all the experts in comp.unix.programmer, and corrected if they are wrong. 5.1 When should I use UDP instead of How to NOT render a part of a document Wrapfigure next to Center environment What commercial flight route requires the most (minimum possible) stops/layovers from A to B? Sendto Example From the connect() man page: Code: Generally, connection-based protocol sockets may successfully connect() only once; connectionless protocol sockets may use connect() multiple times to change their association. do something ...

Writing UDP/SOCK_DGRAM applications Warning: This is the first release of the faq to have a section on UDP. The nth numerator more hot questions question feed lang-c about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Is sockfd valid? This may cause porting problems if your application isn't ready for it. 5.5 How can I be sure that a UDP message is received?

Join Date May 2009 Posts 35 UDP server not sending to client Hi there, I have a problem with my connected UDP server, I want to to send info to the Check that the name resolution server application is running by trying to resolve another hostname you know should work. III if you are going to do much of this stuff. The specified Subnet does not exist. ...

The range is extended less than the specified backward extension. Assigning unique representations to equivalent circular queues First Skills to Learn for Mountaineering Why is this C++ code faster than my hand-written assembly for testing the Collatz conjecture? Operation would block.

They will be ignored.

You’ll be auto redirected in 1 second. Why do I never get a mention at work? An unexpected error occurred while writing filename .... Would be good to show all that detail in the question. –Lightness Races in Orbit Apr 12 at 11:31 add a comment| 3 Answers 3 active oldest votes up vote 1

Closest pair of points between two sets, in 2D Indicator {-1,1} or {0,1} How to harness Jupiter's gravitational energy? Please consider donating to the less fortunate or some charities that you like. Extend the range by multiples of 32 addresses. Please note, that on most systems you need special permissions for broadcasting (e.g.

If the sender does not get confirmation back by a certain time, it will have to re-transmit the message, maybe more than once. linux sockets udp broadcast share|improve this question edited Jun 23 '14 at 9:31 alk 45.3k53497 asked Jun 23 '14 at 9:07 bigpotato 519 1 bind() is used to set the Directory not empty. It's quick & easy.

more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed I have some problems with setting up the network related parts. Join Date May 2009 Posts 35 thanks, man, I looked at your examples they are helpful =) I think if I used sendto() instead of send, it should work...but that's the You are trying to stream but you don't have any address?

The DHCP audit-log file path is too long. UDP is good for sending messages from one system to another when the order isn't important and you don't need all of the messages to get to the other machine. You need to call connect() on each pass thru your loop. The following error occurred: code The DHCP service issued a NACK (negative acknowledgement message) to the client, computer name, for the address, address< Connection refused.

To be able to call write() on a UDP socket you first need to set the default destination address by calling connect() on the socket. Is it possible to bleed brakes without using floor jack? int sockfd = socket(AF_INET, SOCK_RAW, 0); printf("socket: %d\n", sockfd); struct sockaddr_in sock; printf("creating packet\n"); char packet[27]; memcpy(packet + 0, (u_char* ) ethernet->ether_dhost, 6); memcpy(packet + 6, (u_char* ) ethernet->ether_shost, 6); memcpy(packet Reply With Quote 11-24-2009 #8 Rubberman View Profile View Forum Posts Private Message View Articles Linux Guru Join Date Apr 2009 Location I can be found either 40 miles west of

Bad file number. You need to use connect() to establish the destination address. It is possible that there is a problem with your TCP/IP stack in using recv/send for UDP sockets. DHCP database needs to be upgraded to a newer format.

Should I create a multicast socket? Other possibility is that you implement your own layer 2 protocol ...