NAME¶
explain_accept4_or_die - accept a connection on a socket and report errors
SYNOPSIS¶
#include <libexplain/accept4.h>
int explain_accept4_or_die(int fildes, struct sockaddr *sock_addr, socklen_t
*sock_addr_size, int flags);
int explain_accept4_on_error(int fildes, struct sockaddr *sock_addr, socklen_t
*sock_addr_size, int flags);
DESCRIPTION¶
The
explain_accept4_or_die function is used to call the
accept4(2)
system call. On failure an explanation will be printed to
stderr,
obtained from the
explain_accept4(3) function, and then the process
terminates by calling exit(EXIT_FAILURE).
The
explain_accept4_on_error function is used to call the
accept4(2) system call. On failure an explanation will be printed to
stderr, obtained from the
explain_accept4(3) function, but still
returns to the caller.
- fildes
- The fildes, exactly as to be passed to the
accept4(2) system call.
- sock_addr
- The sock_addr, exactly as to be passed to the
accept4(2) system call.
- sock_addr_size
- The sock_addr_size, exactly as to be passed to the
accept4(2) system call.
- flags
- The flags, exactly as to be passed to the accept4(2)
system call.
RETURN VALUE¶
The
explain_accept4_or_die function only returns on success, see
accept4(2) for more information. On failure, prints an explanation and
exits, it does not return.
The
explain_accept4_on_error function always returns the value return by
the wrapped
accept4(2) system call.
EXAMPLE¶
The
explain_accept4_or_die function is intended to be used in a fashion
similar to the following example:
int result = explain_accept4_or_die(fildes, sock_addr, sock_addr_size, flags);
SEE ALSO¶
- accept4(2)
- accept a connection on a socket
- explain_accept4(3)
- explain accept4(2) errors
- exit(2)
- terminate the calling process
COPYRIGHT¶
libexplain version 0.52
Copyright (C) 2009 Peter Miller