Metrologic Optimus S Programming Manual page 159

inet_ntoa
Purpose To convert an IP address to a string in standard dot notation.
Syntax char *inet_ntoa (struct in_addr addr);
addr
Example struct sockaddr_in name;
char ip_addr[16];
strcpy (ip_addr, inet_ntoa (name.sin_addr));
printf ("Remote IP: %s", ip_addr);
Description This routine converts an IP address stored in a struct in_addr structure to a
string in standard dot notation.
Return If successful, it returns a pointer to the string.
Otherwise (?)
See Also inet_addr
ioctlsocket
Purpose To provide controls on the I/O mode of a socket.
Syntax int ioctlsocket (int fildes, int request, ...);
Example (?)
Description This routine manipulates the underlying device parameters of special files. In
particular, many operating characteristics of character special files (e.g.
terminals) may be controlled with ioctlsocket() requests.
Return If successful, it returns 0.
On error, it returns -1.
The global variable errno is set to indicate the error condition encountered.
See Also fcntlsocket
listen
Purpose To listen for connections on a socket.
Syntax int listen (SOCKET s, int backlog);
s
backlog
Chapter 3 Terminal Specific Function Library
A in_addr structure containing the IP address to be converted
The argument fildes must be an open file descriptor.
Descriptor identifying a bound, unconnected socket
Number of connections that will be held in a queue waiting to
be accepted
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