explain_getsockopt_or

explain_getsockopt_or_die

Section: C Library Functions (3) Local index Up

NAME

explain_getsockopt_or_die - get and set options on sockets and report errors

SYNOPSIS

void explain_getsockopt_or_die(int fildes, int level, int name, void *data, socklen_t *data_size);

DESCRIPTION

The explain_getsockopt_or_die function is used to call the getsockopt(2) system call. On failure an explanation will be printed to stderr, obtained from explain_getsockopt(3), and then the process terminates by calling exit(EXIT_FAILURE).

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

explain_getsockopt_or_die(fildes, level, name, data, data_size);

fildes: The fildes, exactly as to be passed to the getsockopt(2) system call.
level: The level, exactly as to be passed to the getsockopt(2) system call.
name: The name, exactly as to be passed to the getsockopt(2) system call.
data: The data, exactly as to be passed to the getsockopt(2) system call.
data_size: The data_size, exactly as to be passed to the getsockopt(2) system call.
Returns:: This function only returns on success. On failure, prints an explanation and exits.

COPYRIGHT