05.03.2016, 01:39, "Dmitry V. Levin" <l...@altlinux.org>:
> On Sat, Mar 05, 2016 at 01:33:55AM +0530, Anchit Jain wrote:
>> 05.03.2016, 01:17, "Dmitry V. Levin" <l...@altlinux.org>:
>> > On Fri, Mar 04, 2016 at 07:26:35PM +0000, Anchit Jain wrote:
>
> [...]
>> >> + int create_file_desc = open("chmod_test_file", O_CREAT|O_RDONLY,
>> 0400);
>> >
>> > Do you plan to use other descriptors besides this one?
>> > If not, "create_file_desc" is too verbose.
>>
>> Would file_desc work?
>
> Even "fd" would be OK.
>
>> >> + perror_msg_and_fail("chmod -1");
>> >
>> > What does this "chmod -1" mean?
>>
>> What should be the error message? Like chmod failed due to this error?
>
> Since it's "open" that failed and not "chmod", just use "open".
>
>> >> + if(syscall(__NR_chmod, "chmod_test_file", 0600) != 0)
>> >> + perror_msg_and_fail("chmod -1");
>> >
>> > Let me repeat: chmod syscall can legitimately fail with ENOSYS.
>>
>> How can I check that?
>
> errno == ENOSYS?
So in case if errno is ENOSYS test should be skipped rather than failing ?
>
> --
> ldv
> ,
>
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--
Sincerely, Anchit Jain
mailingl...@anchitja.in
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