Linux cli command getsockname

➡ A Linux man page (short for manual page) is a form of software documentation found on Linux and Unix-like operating systems. This man-page explains the command getsockname and provides detailed information about the command getsockname, system calls, library functions, and other aspects of the system, including usage, options, and examples of _. You can access this man page by typing man followed by the getsockname.

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NAME 🖥️ getsockname 🖥️

get socket name

LIBRARY

Standard C library (libc, -lc)

SYNOPSIS

#include <sys/socket.h>
int getsockname(int sockfd, struct sockaddr *restrict addr,
 socklen_t *restrict addrlen);

DESCRIPTION

getsockname() returns the current address to which the socket sockfd is bound, in the buffer pointed to by addr. The addrlen argument should be initialized to indicate the amount of space (in bytes) pointed to by addr. On return it contains the actual size of the socket address.

The returned address is truncated if the buffer provided is too small; in this case, addrlen will return a value greater than was supplied to the call.

RETURN VALUE

On success, zero is returned. On error, -1 is returned, and errno is set to indicate the error.

ERRORS

EBADF
The argument sockfd is not a valid file descriptor.

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

EINVAL
addrlen is invalid (e.g., is negative).

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

ENOTSOCK
The file descriptor sockfd does not refer to a socket.

STANDARDS

POSIX.1-2008.

HISTORY

POSIX.1-2001, SVr4, 4.4BSD (first appeared in 4.2BSD).

SEE ALSO

bind(2), socket(2), getifaddrs(3), ip(7), socket(7), unix(7)

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