02-10-2011
Its a client socket.
length=sizeof(clientAddr);
socketFd=createSocket("tcp");
//setting the server address
clientAddr.sin_family=AF_INET;
clientAddr.sin_addr.s_addr=INADDR_ANY;
port=port+((incrementor++)%50);
clientAddr.sin_port=htons(port);
bindSocket(socketFd,&clientAddr,length);
//setting the server address
serverAddr.sin_family=AF_INET;
serverAddr.sin_addr.s_addr=INADDR_ANY;
serverAddr.sin_port=htons(31000);
/*TCP Connection with slave*/
if((connect(socketFd,(struct sockaddr*)&serverAddr,sizeof(serverAddr)))==-1){
printf("Err in connect\n");
exit(0);
}
//request to server
if(send(socketFd,command,strlen(command)+1,0)<0){
printf("Err in Sending read request to server\n");
}
if(bytesReceived=recv(socketFd,reply,sizeof(reply),0)<0){
printf("Err in receiving reply from server\n");
}
shutdown(socketFd,2);
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in.h(3HEAD) Headers in.h(3HEAD)
NAME
in.h, in - Internet Protocol family
SYNOPSIS
#include <netinet/in.h>
DESCRIPTION
The <netinet/in.h> header defines the following types through typedef:
in_port_t An unsigned integral type of exactly 16 bits.
in_addr_t An unsigned integral type of exactly 32 bits. The <netinet/in.h> header defines the in_addr structure that includes the
following member:
The <netinet/in.h> header defines the in_addr structure that includes the following member:
in_addr_t s_addr
The <netinet/in.h> header defines the type sa_family_t as described in socket.h(3HEAD).
The <netinet/in.h> header defines the following macros for use as values of the level argument of getsockopt() and setsockopt():
IPPROTO_IP Dummy for IP
IPPROTO_ICMP Control message protocol
IPPROTO_TCP TCP
IPPROTO_UDP User datagram protocol The <netinet/in.h> header defines the following macros for use as destination addresses for
connect(), sendmsg(), and sendto():
INADDR_ANY Local host address
INADDR_BROADCAST Broadcast address
The <netinet/in.h> header defines the sockaddr_in structure that is used to store addresses for the Internet protocol family. Values of
this type must be cast to struct sockaddr for use with the socket interfaces.
Default
For applications that do not require standard-conforming behavior (those that use the socket interfaces described in section(3SOCKET) of
the reference manual; see Intro(3) and standards(5)), the <netinet/in.h> header defines the sockaddr_in structure that includes the follow-
ing members:
sa_family_t sin_family
in_port_t sin_port
struct in_addr sin_addr
char sin_zero[8]
Standard conforming
For applications that require standard-conforming behavior (those that use the socket interfaces described in section(3XNET) of the refer-
ence manual; see Intro(3) and standards(5)), the <netinet/in.h> header defines the sockaddr_in structure that includes the following mem-
bers:
sa_family_t sin_family
in_port_t sin_port
struct in_addr sin_addr
unsigned char sin_zero[8]
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |Standard |
+-----------------------------+-----------------------------+
SEE ALSO
Intro(3), connect(3SOCKET), connect(3XNET), getsockopt(3SOCKET), getsockopt(3XNET), sendmsg(3SOCKET), sendmsg(3XNET), sendto(3SOCKET),
sendto(3XNET), setsockopt(3SOCKET), setsockopt(3XNET), socket.h(3HEAD), attributes(5), standards(5)
SunOS 5.10 30 Aug 2002 in.h(3HEAD)