DOKK / manpages / debian 12 / libexplain-dev / explain_futimesat_or_die.3.en
explain_futimesat_or_die(3) Library Functions Manual explain_futimesat_or_die(3)

explain_futimesat_or_die - change timestamps of a file relative to a directory and report errors

#include <libexplain/futimesat.h>

void explain_futimesat_or_die(int fildes, const char *pathname, const struct timeval *data);
int explain_futimesat_on_error(int fildes, const char *pathname, const struct timeval *data);

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

The explain_futimesat_on_error function is used to call the futimesat(2) system call. On failure an explanation will be printed to stderr, obtained from the explain_futimesat(3) function, but still returns to the caller.

The fildes, exactly as to be passed to the futimesat(2) system call.
The pathname, exactly as to be passed to the futimesat(2) system call.
The data, exactly as to be passed to the futimesat(2) system call.

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

The explain_futimesat_on_error function always returns the value return by the wrapped futimesat(2) system call.

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

explain_futimesat_or_die(fildes, pathname, data);

futimesat(2)
change timestamps of a file relative to a directory
explain_futimesat(3)
explain futimesat(2) errors
exit(2)
terminate the calling process

libexplain version 1.4
Copyright (C) 2013 Peter Miller