GETSOCKNAME(2) BSD System Calls Manual GETSOCKNAME(2)NAME
getsockname -- get socket name
SYNOPSIS
#include <sys/socket.h>
int
getsockname(int socket, struct sockaddr *restrict address, socklen_t *restrict address_len);
DESCRIPTION
The getsockname() fynction returns the current address for the specified socket.
The address_len parameter should be initialized to indicate the amount of space pointed to by address. On return it contains the actual size
of the address returned (in bytes).
The address is truncated if the buffer provided is too small.
RETURN VALUES
The getsockname() function returns the value 0 if successful; otherwise the value -1 is returned and the global variable errno is set to
indicate the error.
ERRORS
The getsockname() system call will succeed unless:
[EBADF] The argument socket is not a valid file descriptor.
[EFAULT] The address parameter points to memory not in a valid part of the process address space.
[EINVAL] socket has been shut down.
[ENOBUFS] Insufficient resources were available in the system to perform the operation.
[ENOTSOCK] The argument socket is not a socket (e.g., a plain file).
[EOPNOTSUPP] getsockname() is not supported for the protocol in use by socket.
SEE ALSO bind(2), socket(2)BUGS
Names bound to sockets in the UNIX domain are inaccessible; getsockname() returns a zero-length address.
HISTORY
The getsockname() call appeared in 4.2BSD.
4.2 Berkeley Distribution June 4, 1993 4.2 Berkeley Distribution
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GETSOCKNAME(2) BSD System Calls Manual GETSOCKNAME(2)NAME
getsockname -- get socket name
SYNOPSIS
#include <sys/socket.h>
int
getsockname(int socket, struct sockaddr *restrict address, socklen_t *restrict address_len);
DESCRIPTION
The getsockname() function returns the current address for the specified socket.
The address_len parameter should be initialized to indicate the amount of space pointed to by address. On return it contains the actual size
of the address returned (in bytes).
The address is truncated if the buffer provided is too small.
RETURN VALUES
The getsockname() function returns the value 0 if successful; otherwise the value -1 is returned and the global variable errno is set to
indicate the error.
ERRORS
The getsockname() system call will succeed unless:
[EBADF] The argument socket is not a valid file descriptor.
[EFAULT] The address parameter points to memory not in a valid part of the process address space.
[EINVAL] socket has been shut down.
[ENOBUFS] Insufficient resources were available in the system to perform the operation.
[ENOTSOCK] The argument socket is not a socket (e.g., a plain file).
[EOPNOTSUPP] getsockname() is not supported for the protocol in use by socket.
SEE ALSO bind(2), socket(2)BUGS
Names bound to sockets in the UNIX domain are inaccessible; getsockname() returns a zero-length address.
HISTORY
The getsockname() call appeared in 4.2BSD.
4.2 Berkeley Distribution June 4, 1993 4.2 Berkeley Distribution
Could anyone tell me please:
-what the socket number of a network computer is?
-How it is related to the IP address?
-And how can I obtain this information from my work station?
:D (2 Replies)
When I worked with client-server (socket) programming, I encountered "the socket error# 10055" which means "No buffer space available". This might be a symptom of one or more applications that didn't return system resources (like memory) properly. Temporary solution was to reboot the machine to... (7 Replies)
my system is a stand alone system... i want to try doing socket porgramming..ihave heard that this is usually done during testing...
how can i do that....? (6 Replies)
int bind(int socket, const struct sockaddr *address,
socklen_t address_len);
Man page says it specifies the length of the sockaddr structure pointed to by the address argument.
But why bind() can't figure out the length itself, since the first member (eg:AF_INET or... (4 Replies)