Use the new `mLib' annotations on varargs functions.

[tripe] / common / util.c

diff --git a/common/util.c b/common/util.c
index 92b9853..78358b3 100644 (file)
--- a/common/util.c
+++ b/common/util.c
@@ -137,7 +137,9 @@ gid_t u_getgroup(const char *name)
 
 void u_setugid(uid_t u, gid_t g)
 {
-  if (g != (gid_t)-1) {
+  uid_t cu = geteuid();
+
+  if (cu == 0 && g != (gid_t)-1) {
     if (setgid(g) || (getuid() == 0 && setgroups(1, &g))) {
       die(EXIT_FAILURE, "couldn't setgid to %u: %s",
          (unsigned)g, strerror(errno));