[hackers] [quark] Make the socketfile accessible by clients || Quentin Rameau

[git]

commit 260ef0a988309bbaa1fcf96733fe1170ca738173
Author:     Quentin Rameau <quinq@fifth.space>
AuthorDate: Sun Jul 9 12:09:13 2017 +0200
Commit:     Laslo Hunhold <d...@frign.de>
CommitDate: Tue Jul 11 14:09:27 2017 +0200

    Make the socketfile accessible by clients

diff --git a/quark.c b/quark.c
index 94532de..edf4103 100644
--- a/quark.c
+++ b/quark.c
@@ -878,11 +878,11 @@ getipsock(void)
 }
 
 static int
-getusock(char *udsname)
+getusock(char *udsname, uid_t uid, gid_t gid)
 {
        struct sockaddr_un addr;
        size_t udsnamelen;
-       int insock;
+       int insock, sockmode = S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH;
 
        if ((insock = socket(AF_UNIX, SOCK_STREAM, 0)) < 0) {
                die("%s: socket: %s\n", argv0, strerror(errno));
@@ -906,6 +906,14 @@ getusock(char *udsname)
                die("%s: listen: %s\n", argv0, strerror(errno));
        }
 
+       if (chmod(udsname, sockmode) < 0) {
+               die("%s: chmod: %s\n", argv0, strerror(errno));
+       }
+
+       if (chown(udsname, uid, gid) < 0) {
+               die("%s: chown: %s\n", argv0, strerror(errno));
+       }
+
        return insock;
 }
 
@@ -1000,7 +1008,8 @@ main(int argc, char *argv[])
        }
 
        /* bind socket */
-       insock = udsname ? getusock(udsname) : getipsock();
+       insock = udsname ? getusock(udsname, pwd->pw_uid, grp->gr_gid) :
+                          getipsock();
 
        /* chroot */
        if (chdir(servedir) < 0) {