Don't use compatability syscall wrappers in emulation code.

This is needed for the COMPAT_FREEBSD3 option split.

Reviewed by:	alfred, jake

1 files changed, 21 insertions, 0 deletions

diff --git a/sys/compat/linux/linux_sysctl.c b/sys/compat/linux/linux_sysctl.c
index 294da08..153e0ac 100644
--- a/sys/compat/linux/linux_sysctl.c
+++ b/sys/compat/linux/linux_sysctl.c
@@ -29,7 +29,11 @@
  */
 
 #include <sys/param.h>
+#include <sys/lock.h>
 #include <sys/malloc.h>
+#include <sys/mutex.h>
+#include <sys/proc.h>
+#include <sys/sysctl.h>
 #include <sys/systm.h>
 
 #include <machine/../linux/linux.h>
@@ -117,3 +121,20 @@ linux_sysctl(struct thread *td, struct linux_sysctl_args *args)
 	free(mib, M_TEMP);
 	return (ENOTDIR);
 }
+
+int
+linux_sethostname(struct thread *td, struct linux_sethostname_args *uap)
+{
+	int name[2];
+	int error;
+
+	name[0] = CTL_KERN;
+	name[1] = KERN_HOSTNAME;
+	mtx_lock(&Giant);
+	if ((error = suser_cred(td->td_ucred, PRISON_ROOT)) == 0) {
+		error = userland_sysctl(td, name, 2, 0, 0, 0,
+		    uap->hostname, uap->len, 0);
+	}
+	mtx_unlock(&Giant);
+	return (error);
+}