Revision as of 18:53, 24 September 2009 by fasttrack (Talk | contribs)

Socket Connection to an IP Address

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Following is the Open C code to connect to an IP Address given an Access Point name, IP Address and the port. This code uses ioctl to do the job. Similarly, we can do it even without using ioctl

int ConnectToIpAdress(char *apname, char *ipaddr , int port)
ifreq ifr;
int sockfd;
struct sockaddr_in destAddr, selfAddr;
// Name of the interface
strcpy(ifr.ifr_name, apname);
ioctl(sockfd,SIOCSIFNAME, &ifr);
ioctl(sockfd, SIOCIFSTART , &ifr);
selfAddr.sin_family = AF_INET;
selfAddr.sin_addr.s_addr = INADDR_ANY;
selfAddr.sin_port = htons(port);
bind(sockfd,(struct sockaddr*)&selfAddr, sizeof(selfAddr));
destAddr.sin_family = AF_INET;
destAddr.sin_addr.s_addr = inet_addr( ipaddr );
destAddr.sin_port = htons(port);
connect(sockfd, (struct sockaddr*)&destAddr, sizeof(destAddr));
ioctl(sockfd, SIOCIFSTOP, &ifr);


Reading AP(Access Point) Table

Start new Socket Connection to Access Point

Start new Socket Sub-connection to Access Point

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