I got it working the way I wanted by setting the umask through systemd. Thanks for the help!
On 26 May 2016 at 21:10, Michal Vyskocil <michal.vysko...@gmail.com> wrote: > Hi, > > it does not work in libzmq by automatically. However there is a socket > option use_fd which will skip the open_socket/bind/listen part, which > is exaclty your use case. > > The documentation of systemd part is here > http://0pointer.de/blog/projects/socket-activation.html > > usage is pretty simple if you're using just one fd > * call sd_listen_fds (1) > * if result is 1, assign use_fd to SD_LISTEN_FDS_START > * fail otherwise > > Here is the example of use_fd > https://github.com/zeromq/libzmq/blob/master/tests/test_setsockopt.cpp#L86 > > On Thu, May 26, 2016 at 12:34 PM, Ale Strooisma > <a.strooi...@student.utwente.nl> wrote: > > Hit send to quickly: > > > > There indeed seems to be a umask property available in systemd > configuration > > files (my program is initialized by systemd, hence the relevance). > > Slight issue is that the program might also create log files, for > example, > > which would most likely require other permissions... but I suppose that > is > > insurmountable? > > > > Kind regards, Ale Strooisma > > > > On 26 May 2016 at 12:30, Ale Strooisma <a.strooi...@student.utwente.nl> > > wrote: > >> > >> Sorry, I am not familiar with umask. As far as I understand, setting the > >> umask determines what permissions new files created by the user have. > >> However, in this case I need to specifically affect the files created by > >> this specific program. Do you mean there is a way to run a program that > >> determines what permissions a file created by it gets? > >> > >> On 26 May 2016 at 11:01, Arnaud Loonstra <arn...@sphaero.org> wrote: > >>> > >>> I don't think zmq deals with permissions? The OS does. Shouldn't you be > >>> using a umask? > >>> What's your umask set at? > >>> > >>> Rg, > >>> > >>> Arnaud > >>> > >>> On 2016-05-26 10:49, Ale Strooisma wrote: > >>>> > >>>> I am using libzmq 4.0.5 - the one provided by EPEL for CentOS 7. I > >>>> have never noticed any systemd support in zeromq. > >>>> > >>>> Yes I am using the chmod function from sys/stat.h with which I change > >>>> the permissions on the socket file from 0755 to 0770. The socket is > >>>> created in the tmp directory which has 1777. > >>>> > >>>> Just to make it clear: Id prefer not having to mess around with > >>>> sockets outside ZeroMQ / my program. > >>>> > >>>> On 26 May 2016 at 10:30, Arnaud Loonstra <arn...@sphaero.org [7]> > >>>> wrote: > >>>> > >>>>> I might be misinformed but some of my first thoughts > >>>>> > >>>>> - what version of zeromq? Are you using zeromqs systemd support? I > >>>>> recall we were hacking on this in the hackathon during FOSDEM. > >>>>> Otherwise the socket fd might be unlinked which results in weird > >>>>> behaviour. > >>>>> - Are you using chmod C method or the shell command? Usually you > >>>>> set permissions on the directory where the socket is created > >>>>> > >>>>> Rg, > >>>>> > >>>>> Arnaud > >>>>> On 2016-05-25 17:30, Ale Strooisma wrote: > >>>>> > >>>>>> the previous update might be incorrect. Now it seems that I cant > >>>>>> bind > >>>>>> to a socket created by systemd (I got something like "address > >>>>>> already > >>>>>> in use"). If I connect to it instead with my server program, > >>>>>> which > >>>>>> uses a REP socket, it does receive messages, but cant seem to > >>>>>> reply... > >>>>>> > >>>>>> Anyway, all in all it would be highly preferable to be able to > >>>>>> set > >>>>>> with which permissions the socket is created. Currently I am > >>>>>> working > >>>>>> around this issue by calling chmod after binding to the socket. > >>>>>> > >>> > >>> > >>> _______________________________________________ > >>> zeromq-dev mailing list > >>> zeromq-dev@lists.zeromq.org > >>> http://lists.zeromq.org/mailman/listinfo/zeromq-dev > >> > >> > > > > > > _______________________________________________ > > zeromq-dev mailing list > > zeromq-dev@lists.zeromq.org > > http://lists.zeromq.org/mailman/listinfo/zeromq-dev > > > > -- > best regards > Michal Vyskocil > _______________________________________________ > zeromq-dev mailing list > zeromq-dev@lists.zeromq.org > http://lists.zeromq.org/mailman/listinfo/zeromq-dev >
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