libexplain/accept4_or_die.c File Reference

#include <libexplain/ac/errno.h>
#include <libexplain/ac/sys/socket.h>
#include <libexplain/accept4.h>
#include <libexplain/output.h>

Go to the source code of this file.

Functions
int	explain_accept4_on_error (int fildes, struct sockaddr *sock_addr, socklen_t *sock_addr_size, int flags)
int	explain_accept4_or_die (int fildes, struct sockaddr *sock_addr, socklen_t *sock_addr_size, int flags)

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Function Documentation

int explain_accept4_on_error	(	int	fildes,
		struct sockaddr *	sock_addr,
		socklen_t *	sock_addr_size,
		int	flags
	)

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.

Parameters:

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.

Returns:

The value returned by the wrapped accept4(2) system call.

Example:

This function is intended to be used in a fashion similar to the following example:

 int result = explain_accept4_on_error(fildes, sock_addr, sock_addr_size,
     flags);
 if (result < 0)
 {
     ...cope with error
     ...no need to print error message
 }

Definition at line 27 of file accept4_or_die.c.

int explain_accept4_or_die	(	int	fildes,
		struct sockaddr *	sock_addr,
		socklen_t *	sock_addr_size,
		int	flags
	)

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).

Parameters:

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.

Returns:

This function only returns on success, see accept4(2) for more information. On failure, prints an explanation and exits, it does not return.

Example:

This 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);

Definition at line 62 of file accept4_or_die.c.