Index: head/usr.sbin/ctld/kernel.c
===================================================================
--- head/usr.sbin/ctld/kernel.c
+++ head/usr.sbin/ctld/kernel.c
@@ -52,6 +52,7 @@
 #include <sys/stat.h>
 #include <assert.h>
 #include <bsdxml.h>
+#include <capsicum_helpers.h>
 #include <ctype.h>
 #include <errno.h>
 #include <fcntl.h>
@@ -1313,22 +1314,17 @@
 void
 kernel_capsicate(void)
 {
-	int error;
 	cap_rights_t rights;
 	const unsigned long cmds[] = { CTL_ISCSI };
 
 	cap_rights_init(&rights, CAP_IOCTL);
-	error = cap_rights_limit(ctl_fd, &rights);
-	if (error != 0 && errno != ENOSYS)
+	if (caph_rights_limit(ctl_fd, &rights) < 0)
 		log_err(1, "cap_rights_limit");
 
-	error = cap_ioctls_limit(ctl_fd, cmds, nitems(cmds));
-
-	if (error != 0 && errno != ENOSYS)
+	if (caph_ioctls_limit(ctl_fd, cmds, nitems(cmds)) < 0)
 		log_err(1, "cap_ioctls_limit");
 
-	error = cap_enter();
-	if (error != 0 && errno != ENOSYS)
+	if (caph_enter() < 0)
 		log_err(1, "cap_enter");
 
 	if (cap_sandboxed())
Index: head/usr.sbin/iscsid/iscsid.c
===================================================================
--- head/usr.sbin/iscsid/iscsid.c
+++ head/usr.sbin/iscsid/iscsid.c
@@ -42,6 +42,7 @@
 #include <sys/capsicum.h>
 #include <sys/wait.h>
 #include <assert.h>
+#include <capsicum_helpers.h>
 #include <errno.h>
 #include <fcntl.h>
 #include <libutil.h>
@@ -349,7 +350,6 @@
 static void
 capsicate(struct connection *conn)
 {
-	int error;
 	cap_rights_t rights;
 #ifdef ICL_KERNEL_PROXY
 	const unsigned long cmds[] = { ISCSIDCONNECT, ISCSIDSEND, ISCSIDRECEIVE,
@@ -360,17 +360,13 @@
 #endif
 
 	cap_rights_init(&rights, CAP_IOCTL);
-	error = cap_rights_limit(conn->conn_iscsi_fd, &rights);
-	if (error != 0 && errno != ENOSYS)
+	if (caph_rights_limit(conn->conn_iscsi_fd, &rights) < 0)
 		log_err(1, "cap_rights_limit");
 
-	error = cap_ioctls_limit(conn->conn_iscsi_fd, cmds, nitems(cmds));
-
-	if (error != 0 && errno != ENOSYS)
+	if (caph_ioctls_limit(conn->conn_iscsi_fd, cmds, nitems(cmds)) < 0)
 		log_err(1, "cap_ioctls_limit");
 
-	error = cap_enter();
-	if (error != 0 && errno != ENOSYS)
+	if (caph_enter() != 0)
 		log_err(1, "cap_enter");
 
 	if (cap_sandboxed())