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Full Discussion: Socket programming in C
Top Forums Programming Socket programming in C Post 302303263 by Ahmed waheed on Thursday 2nd of April 2009 08:51:56 AM
Old 04-02-2009
Bug
you can use this working code :

Code:
void etherSetup(char *strIP,int nPort)
{
	unsigned long ip;
	
	if((*strIP <= '9') && (*strIP >= '0'))
		{
			if( (int)(ip = inet_addr(strIP)) == -1 )
				{
				printf("\r\nIP-address must be of the form a.b.c.d\n");
              	exit (2);
				}


		}
	else
		{
			server = gethostbyname(strIP);
    		if(!server) 
				{ 
				printf("\nError in host Name.\n");
				exit(2);
				}
   			ip = *(unsigned long*)(server->h_addr);
		}

/////printf("\r\nSERVER IP=%d\r\n ",ip);



	server = gethostbyaddr((char *)&ip,sizeof(ip),AF_INET);
	if (server == NULL)
		{
        	printf("\r\nERROR, no such host .\n");
        	exit(1);
    	}

	bzero((char *) &m_sockaddr_in, sizeof(m_sockaddr_in));

	m_sockaddr_in.sin_family = AF_INET;
	m_sockaddr_in.sin_port = htons(nPort);
	m_sockaddr_in.sin_addr = *(in_addr*)&ip;
	printf("remotehost : %s   , port : %d \n",strIP,nPort);
}

//-----------------------------------------------------------------
int Create()
{
  sockfd = socket(AF_INET, SOCK_STREAM,IPPROTO_TCP);
  if ( sockfd <0 ) return -1;
  return 0;
}
//-----------------------------------------------------------------
int Connect()
{
	int ret;

  	ret = connect(sockfd,(sockaddr*)&m_sockaddr_in,sizeof(m_sockaddr_in));
  	if ( ret <0 ) return -1; //ERROR in connection>
  	return 0;
}

this is for TCP/IP protocol
 

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LEARN ABOUT SUNOS

cachefsd

cachefsd(1M)						  System Administration Commands					      cachefsd(1M)

NAME

       cachefsd - CacheFS daemon

SYNOPSIS

       /usr/lib/fs/cachefs/cachefsd

DESCRIPTION

       The  cachefsd  server  implements  features  of the cache filesystem (CacheFS). It is invoked at boot time and run if the / (root) and /usr
       filesystems are being cached. If /usr is being cached, cachefsd is invoked by inetd(1M)	from  inetd.conf(4).  At  run  time,  cachefsd	is
       invoked by the inetd mechanism in response to an RPC request from a user command such as mount_cachefs(1M).

       The  cachefsd  server  supports	the "disconnected mode" of CacheFS. In this mode, a user can continue to read and, depending on the option
       selected, write to files in a cached filesystem when the NFS server for the cached files is not available.

       The cachefsd daemon performs the following functions in support of the CacheFS:

	 o  Implements the connection policy. The daemon determines whether the NFS server backing the cache is connected or disconnected from the
	    cache, or is in transition from the connected or disconnected states.

	 o  Implements	"log  rolling,"  wherein  the daemon monitors a disconnected NFS server for reconnection. After such a server returns to a
	    connected state, cachefsd rolls any local changes to cached files (kept in a log) back to the server.

	 o  Manages "packing," wherein cachefsd makes a best effort to ensure that files in a user-specified list are available in  the  cache	in
	    disconnected mode.

	 o  Supports user interfaces by supplying statistics, reporting conflicts between the cache and the back filesystem, and supporting a list
	    of files for packing.

       The running of cachefsd is required for the disconnected mode of CacheFS.

OPTIONS

       The following options are supported:

       -r	       Used for invoking cachefsd for the / filesystem.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       cachefspack(1M), cfsadmin(1M), mount_cachefs(1M), inetd.conf(4), attributes(5)

       System Administration Guide: Basic Administration

SunOS 5.10							  2 October 2000						      cachefsd(1M)
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