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explain_fchmod_or_die(3) Library Functions Manual explain_fchmod_or_die(3) NAME explain_fchmod_or_die - change permissions of an open file and report errors SYNOPSIS #include <libexplain/fchmod.h> void explain_fchmod_or_die(int fildes, mode_t mode); int explain_fchmod_on_error(int fildes, mode_t mode); DESCRIPTION The explain_fchmod_or_die function is used to call the fchmod(2) system call. On failure an explanation will be printed to stderr, obtained from the explain_fchmod(3) function, and then the process terminates by calling exit(EXIT_FAILURE). The explain_fchmod_on_error function is used to call the fchmod(2) sys- tem call. On failure an explanation will be printed to stderr, obtained from the explain_fchmod(3) function, but still returns to the caller. fildes The fildes, exactly as to be passed to the fchmod(2) system call. mode The mode, exactly as to be passed to the fchmod(2) system call. RETURN VALUE The explain_fchmod_or_die function only returns on success, see fch- mod(2) for more information. On failure, prints an explanation and ex- its, it does not return. The explain_fchmod_on_error function always returns the value return by the wrapped fchmod(2) system call. EXAMPLE The explain_fchmod_or_die function is intended to be used in a fashion similar to the following example: explain_fchmod_or_die(fildes, mode); SEE ALSO fchmod(2) change permissions of an open file explain_fchmod(3) explain fchmod(2) errors exit(2) terminate the calling process COPYRIGHT libexplain version 1.3 Copyright (C) 2013 Peter Miller explain_fchmod_or_die(3)
NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | EXAMPLE | SEE ALSO | COPYRIGHT
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