Fix unveil(2) usage - quark - quark web server
 (HTM) git clone git://git.suckless.org/quark
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 (DIR) commit 5ee8c07e7e3e601fce49fbc2b170227924be3804
 (DIR) parent 3c7049e9063edebbd1934178f263f9f3c9b8ddf5
 (HTM) Author: Laslo Hunhold <dev@frign.de>
       Date:   Fri, 20 Mar 2020 20:35:34 +0100
       
       Fix unveil(2) usage
       
       Thanks to the feedback by z0lqLA! I forgot that unveil(NULL, NULL)
       only locks further unveil calls when there has been at least _one_ prior
       call to unveil!
       
       To fix this, we reorder the calls and also make sure to call unveil()
       before we disallow unveils via pledge.
       
       Signed-off-by: Laslo Hunhold <dev@frign.de>
       
       Diffstat:
         M main.c                              |       5 ++++-
       
       1 file changed, 4 insertions(+), 1 deletion(-)
       ---
 (DIR) diff --git a/main.c b/main.c
       @@ -387,10 +387,13 @@ main(int argc, char *argv[])
                        exit(0);
                default:
                        /* limit ourselves even further while we are waiting */
       -                eunveil(NULL, NULL);
                        if (udsname) {
       +                        eunveil(udsname, "c");
       +                        eunveil(NULL, NULL);
                                epledge("stdio cpath", NULL);
                        } else {
       +                        eunveil("/", "");
       +                        eunveil(NULL, NULL);
                                epledge("stdio", NULL);
                        }