UDP sockets Post: 102152

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Special Forums IP Networking UDP sockets Post 102152 by strider on Thursday 16th of March 2006 03:47:25 AM

03-16-2006

Registered User

UDP sockets

hi...
i have made this client server prog with UDP sockets but im not getting the output. the client sends the message but the server just keeps on waiting. Im running the prog an a solaris 10 box...

server:

Code:

main()
{
   	int   sd;
	struct   sockaddr_in server;
	char buf[512];
	int rc,len;

	server.sin_family = AF_INET;
   	server.sin_addr.s_addr = htonl(INADDR_ANY);
   	server.sin_port = htons(1234);

   	sd = socket (AF_INET,SOCK_DGRAM,0);

  	if(bind ( sd, &server, sizeof(server))==-1)
		printf("error\n");
	else
		printf("ok\n");

 	len=sizeof(server);
	printf("check\n");
   
    	printf("check1\n");
      	rc = recvfrom (sd, &buf[0], 2, 0,&server, &len);
      	printf("check2\n");
      	buf[rc]= '\0';
      	printf("Received: %s\n", buf);
}

client

Code:

main()
{

        int	sd,a;
	struct	sockaddr_in server;

	sd = socket (AF_INET,SOCK_DGRAM,0);

	server.sin_family = AF_INET;
	server.sin_addr.s_addr=htonl("127.0.0.1");
	server.sin_port = htons(1234);

	a=sendto(sd, "HI",2, 0,&server, sizeof(server));
        printf("sent=%d\n",a);
        exit(0);

}

strider

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LEARN ABOUT DEBIAN

xiqueryversion

XIQUERYVERSION(3)														 XIQUERYVERSION(3)

NAME

       XIQueryVersion - announce and query the support XI2 version.

SYNOPSIS

       #include <X11/extensions/XInput2.h>

       Status XIQueryVersion( Display *display,
			      int *major_version_inout,
			      int *minor_version_inout);

       display
	      Specifies the connection to the X server.

       major_version_inout
	      Specifies the client's supported XI2 version, and
	      returns the server's supported version.

       minor_version_inout
	      Specifies the client's supported XI2 version, and
	      returns the server's supported version.

DESCRIPTION

	   XIQueryVersion announces the client's supported XI2 version to
	   the server and returns server's supported X Input version. Clients
	   are required to use XIQueryVersion instead of XGetExtensionVersion
	   if they use XI2 calls. The server may treat a client differently
	   depending on the supported version announced by the client.
	   The major_version_inout must be 2 or greater, otherwise a BadValue
	   error occurs.

	   If the server does not support XI2, XIQueryVersion returns BadRequest
	   to the client. Otherwise, XIQueryVersion returns Success. In both
	   cases major_version_inout and minor_version_inout are set to the
	   server's supported version.

	   Consecutive calls to XIQueryVersion by the same client always return the
	   first returned major.minor version. If the client requests a version
	   lower than the first returned major.minor version in a subsequent call, a
	   BadValue error occurs.

	   XIQueryVersion can generate a BadValue error.

EXAMPLES

	   int rc;
	   int major = 2;
	   int minor = 0;

	   rc = XIQueryVersion(dpy, &major, &minor);
	   if (rc == Success)
	       printf("XI2 supported. (%d.%d)
", major, minor);
	   else if (rc == BadRequest)
	       printf("No XI2 support. (%d.%d only)
", major, minor);
	   else
	       printf("Internal error
");

DIAGNOSTICS

	   BadValue
		  A value is outside of the permitted range.

								    05/15/2013							 XIQUERYVERSION(3)

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