explain_lchmod_or_die3
Change permissions of a file and report errors
Usage
#include <libexplain/lchmod.h>
void explain_lchmod_or_die(const char *pathname, mode_t mode);
int explain_lchmod_on_error(const char *pathname, mode_t mode);
Overview
The explain_lchmod_or_die function is used to call the lchmod(2) system call. On failure an explanation will be printed to stderr, obtained from the explain_lchmod(3) function, and then the process terminates by calling exit(EXIT_FAILURE).
The explain_lchmod_on_error function is used to call the lchmod(2) system call. On failure an explanation will be printed to stderr, obtained from the explain_lchmod(3) function, but still returns to the caller.
pathname
|
The pathname, exactly as to be passed to the lchmod(2) system call. |
|---|---|
mode
|
The mode, exactly as to be passed to the lchmod(2) system call. |
Return value
The explain_lchmod_or_die function only returns on success, see lchmod(2) for more information. On failure, prints an explanation and exits, it does not return.
The explain_lchmod_on_error function always returns the value return by the wrapped lchmod(2) system call.
Examples
The explain_lchmod_or_die function is intended to be used in a fashion similar to the following example:
explain_lchmod_or_die(pathname, mode);Releases
Unchanged in 5 releases since Debian 9 (Stretch).