portability: fix socket size initialisation (fixes tests on alpine)

diff --git a/tests/mlmmj_tests.c b/tests/mlmmj_tests.c
index 34c6c6ceb8e78b2f73dddae73aac0e6907d072a3..3d4796b8702a35771f85621a0a57893ec8d0cce9 100644 (file)
--- a/tests/mlmmj_tests.c
+++ b/tests/mlmmj_tests.c
@@ -115,7 +115,7 @@ single_mail_reception(int fd)
                int c;
                char *r;
                struct sockaddr_in cl;
-               socklen_t clsize = 0;
+               socklen_t clsize = sizeof(struct sockaddr_in);
                c = accept(s, (struct sockaddr *) &cl, &clsize);
                if (c == -1)
                        exit(5);