SIMPLE SOLUTIONS

EXPLAIN_FCHMOD_OR_DIE - reference manual online

Change permissions of an open file and report errors.

Chapter
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) system 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 fchmod(2) for more infor‐ mation. On failure, prints an explanation and exits, it does not return. The explain_fchmod_on_error function always returns the value return by the wrapped fch‐ mod(2) system call.
EXAMPLE The explain_fchmod_or_die function is intended to be used in a fashion similar to the fol‐ lowing 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
explain_fchmod_or_die(3)
This manual Reference Other manuals
explain_fchmod_or_die(3) referred by explain(3) | explain_fchmod(3)
refer to chmod(2) | _exit(2) | explain_fchmod(3)