explain_freopen_or_die man page
explain_freopen_or_die — open file and report errors
void explain_freopen_or_die(const char *pathname, const char *flags, FILE *fp);
The explain_freopen_or_die function is used to reopen a file via the freopen(3) system call. On failure it will print an explanation, obtained from the linexplain_freopen(3) function, on the standard error stream and then exit.
This function is intended to be used in a fashion similar to the following example:
explain_freopen_or_die(pathname, flags, fp);
The pathname, exactly as to be passed to the freopen(3) system call.
The flags, exactly as to be passed to the freopen(3) system call.
The fp, exactly as to be passed to the freopen(3) system call.
Only ever return on success. Never returns on failure.
libexplain version 1.4
Copyright (C) 2008 Peter Miller
Written by Peter Miller <firstname.lastname@example.org>