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GETSOCKNAME(2)		       System Calls Manual		  GETSOCKNAME(2)

NAME
     getsockname -- get socket name

LIBRARY
     Standard C Library (libc, -lc)

SYNOPSIS
     #include <sys/types.h>
     #include <sys/socket.h>

     int
     getsockname(int s, struct sockaddr * restrict name,
	 socklen_t * restrict namelen);

DESCRIPTION
     The  getsockname()  system  call returns the current name for the specified
     socket.  The namelen argument should be initialized to indicate the  amount
     of  space pointed to by name.  On return it contains the actual size of the
     name returned (in bytes).

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 call succeeds unless:

     [EBADF]		The argument s is not a valid descriptor.

     [ECONNRESET]	The connection has been reset by the peer.

     [EINVAL]		The value of the namelen argument is not valid.

     [ENOTSOCK] 	The argument s is a file, not a socket.

     [ENOBUFS]		Insufficient  resources  were available in the system to
			perform the operation.

     [EFAULT]		The name argument points to memory not in a  valid  part
			of the process address space.

SEE ALSO
     bind(2), getpeername(2), socket(2)

HISTORY
     The getsockname() system call appeared in 4.2BSD.

BUGS
     Names  bound  to sockets in the UNIX domain are inaccessible; getsockname()
     returns a zero length name.

FreeBSD 14.3			  June 4, 1993			  GETSOCKNAME(2)

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<https://man.freebsd.org/cgi/man.cgi?query=getsockname&manpath=FreeBSD+14.3-RELEASE+and+Ports>

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