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PROLOG | NAME | SYNOPSIS | DESCRIPTION | APPLICATION USAGE | RATIONALE | FUTURE DIRECTIONS | SEE ALSO | COPYRIGHT |
sys_un.h(0P) POSIX Programmer's Manual sys_un.h(0P)
This manual page is part of the POSIX Programmer's Manual. The Linux
implementation of this interface may differ (consult the
corresponding Linux manual page for details of Linux behavior), or
the interface may not be implemented on Linux.
sys/un.h — definitions for UNIX domain sockets
#include <sys/un.h>
The <sys/un.h> header shall define the sockaddr_un structure, which
shall include at least the following members:
sa_family_t sun_family Address family.
char sun_path[] Socket pathname.
The sockaddr_un structure is used to store addresses for UNIX domain
sockets. Pointers to this type shall be cast by applications to
struct sockaddr * for use with socket functions.
The <sys/un.h> header shall define the sa_family_t type as described
in <sys/socket.h>.
The following sections are informative.
The size of sun_path has intentionally been left undefined. This is
because different implementations use different sizes. For example,
4.3 BSD uses a size of 108, and 4.4 BSD uses a size of 104. Since
most implementations originate from BSD versions, the size is
typically in the range 92 to 108.
Applications should not assume a particular length for sun_path or
assume that it can hold {_POSIX_PATH_MAX} bytes (256).
None.
None.
sys_socket.h(0p)
The System Interfaces volume of POSIX.1‐2008, bind(3p), socket(3p),
socketpair(3p)
Portions of this text are reprinted and reproduced in electronic form
from IEEE Std 1003.1, 2013 Edition, Standard for Information
Technology -- Portable Operating System Interface (POSIX), The Open
Group Base Specifications Issue 7, Copyright (C) 2013 by the
Institute of Electrical and Electronics Engineers, Inc and The Open
Group. (This is POSIX.1-2008 with the 2013 Technical Corrigendum 1
applied.) In the event of any discrepancy between this version and
the original IEEE and The Open Group Standard, the original IEEE and
The Open Group Standard is the referee document. The original
Standard can be obtained online at http://www.unix.org/online.html .
Any typographical or formatting errors that appear in this page are
most likely to have been introduced during the conversion of the
source files to man page format. To report such errors, see
https://www.kernel.org/doc/man-pages/reporting_bugs.html .
IEEE/The Open Group 2013 sys_un.h(0P)