Revert "Check effective credentials of socket peers"

This reverts commit 8412c867a501e3a68e55fef6215e86d3ac9f617b.

Just checking the credentials of the peer turns out to be insufficient.
See https://github.com/fish-shell/fish-shell/issues/1436.

1 files changed, 1 insertions, 8 deletions

diff --git a/fishd.cpp b/fishd.cpp
index 1e095244..edb79c22 100644
--- a/fishd.cpp
+++ b/fishd.cpp
@@ -880,8 +880,6 @@ int main(int argc, char ** argv)
     int child_socket;
     struct sockaddr_un remote;
     socklen_t t;
-    uid_t sock_euid;
-    gid_t sock_egid;
     int max_fd;
     int update_count=0;
 
@@ -1002,12 +1000,7 @@ int main(int argc, char ** argv)
             {
                 debug(4, L"Connected with new child on fd %d", child_socket);
 
-                if (((getpeereid(child_socket, &sock_euid, &sock_egid) != 0) || sock_euid != geteuid()))
-                {
-                    debug(1, L"Wrong credentials for child on fd %d", child_socket);
-                    close(child_socket);
-                }
-                else if (make_fd_nonblocking(child_socket) != 0)
+                if (make_fd_nonblocking(child_socket) != 0)
                 {
                     wperror(L"fcntl");
                     close(child_socket);