socket_to_name(3ncs)socket_to_name(3ncs)Name
socket_to_name - convert a socket address to a name and port number
Syntax
#include <idl/c/socket.h>
void socket_$to_name(sockaddr, slength, name, nlength, port, status)
socket_$addr_t *sockaddr;
unsigned long slength;
socket_$string_t name;
unsigned long *nlength;
unsigned long *port;
status_$t *status;
Arguments
sockaddr A socket address. The socket address is the structure returned by either or
slength The length, in bytes, of sockaddr.
name A string in the format family:host[port], where family is the address family and host is the host name; host may be in
the standard numeric form (for example, #192.1.2.3) if a textual host name cannot be obtained. Currently, only ip is
supported for family.
nlength On input, the maximum length, in bytes, of the name to be returned. On output, the actual length of the name returned.
port The port number.
status The completion status. If the completion status returned in is equal to status_$ok , then the routine that supplied it
was successful.
Description
The routine converts a socket address to a textual address family, host name, and port number.
FilesSee Alsointro(3ncs), socket_family_to_name(3ncs), socket_from_name(3ncs), socket_to_numeric_name(3ncs)socket_to_name(3ncs)
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socket_family_from_name(3ncs)socket_family_from_name(3ncs)Name
socket_family_from_name - convert an address family name to an integer
Syntax
#include <idl/c/socket.h>
unsigned long socket_$family_from_name(name, nlength, status)
socket_$string_t name;
unsigned long nlength;
status_$t *status;
Arguments
name The textual name of an address family. Currently, only ip is supported.
nlength The length, in bytes, of name.
status The completion status. If the completion status returned in is equal to status_$ok , then the routine that supplied it
was successful.
Description
The routine returns the integer representation of the address family specified in the text string name.
Examples
The server program for the banks example, accepts a textual family name as its first argument. The program uses the following routine to
convert this name to the corresponding integer representation:
family = socket_$family_from_name
(argv[1], (long)strlen(argv[1]), &status);
FilesSee Alsointro(3ncs), socket_family_to_name(3ncs), socket_from_name(3ncs), socket_to_name(3ncs)socket_family_from_name(3ncs)
There's a piece in a C program I'm writing (Linux) that simply needs to take a host name and return an IP address (e.g., take 'mail.gnu.org' and return 199.232.76.166). I've gotten a successful status from getaddrinfo, but don't see any of the fields in the result structure that has what I'm... (7 Replies)
hi all,
i meet a problem when opening a socket, is that when the remote host not available or its port hanged ,my program still suspending untill i cancel the operation...
but when the host is ok ,my program work ok.
i handled in my code all these exceptions ,but my problem is when the host is... (6 Replies)