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-rw-r--r--sys/compat/svr4/svr4_misc.c37
-rw-r--r--sys/compat/svr4/syscalls.master4
2 files changed, 38 insertions, 3 deletions
diff --git a/sys/compat/svr4/svr4_misc.c b/sys/compat/svr4/svr4_misc.c
index 1f34a282438..c9d7155fb26 100644
--- a/sys/compat/svr4/svr4_misc.c
+++ b/sys/compat/svr4/svr4_misc.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: svr4_misc.c,v 1.17 1997/11/14 21:22:52 deraadt Exp $ */
+/* $OpenBSD: svr4_misc.c,v 1.18 1997/12/02 00:07:04 deraadt Exp $ */
/* $NetBSD: svr4_misc.c,v 1.42 1996/12/06 03:22:34 christos Exp $ */
/*
@@ -48,6 +48,7 @@
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/mbuf.h>
+#include <sys/ktrace.h>
#include <sys/mman.h>
#include <sys/mount.h>
#include <sys/resource.h>
@@ -1338,3 +1339,37 @@ svr4_sys_nice(p, v, retval)
return 0;
}
+
+/* ARGSUSED */
+int
+svr4_sys_setegid(p, v, retval)
+ struct proc *p;
+ void *v;
+ register_t *retval;
+{
+ struct sys_setegid_args /* {
+ syscallarg(gid_t) egid;
+ } */ *uap = v;
+
+#if defined(COMPAT_LINUX) && defined(i386)
+ if (SCARG(uap, egid) > 60000) {
+ /*
+ * One great fuckup deserves another. The Linux people
+ * made this their personality system call. But we can't
+ * tell if a binary is SVR4 or Linux until they do that
+ * system call, in some cases. So when we get it, and the
+ * value is out of some magical range, switch to Linux
+ * emulation and pray.
+ */
+ extern struct emul emul_linux_elf;
+
+ p->p_emul = &emul_linux_elf;
+#ifdef KTRACE
+ if (KTRPOINT(p, KTR_EMUL))
+ ktremul(p->p_tracep, p->p_emul->e_name);
+#endif
+ return (0);
+ }
+#endif
+ return sys_setegid(p, v, retval);
+}
diff --git a/sys/compat/svr4/syscalls.master b/sys/compat/svr4/syscalls.master
index 87aaea71445..d30b50c4513 100644
--- a/sys/compat/svr4/syscalls.master
+++ b/sys/compat/svr4/syscalls.master
@@ -1,4 +1,4 @@
- $OpenBSD: syscalls.master,v 1.19 1997/11/13 06:23:06 deraadt Exp $
+ $OpenBSD: syscalls.master,v 1.20 1997/12/02 00:07:05 deraadt Exp $
; $NetBSD: syscalls.master,v 1.17 1996/02/10 17:12:51 christos Exp $
; @(#)syscalls.master 8.1 (Berkeley) 7/19/93
@@ -234,7 +234,7 @@
134 NOARGS { int sys_rename(char *from, char *to); }
135 STD { int svr4_sys_uname(struct svr4_utsname* name, \
int dummy); }
-136 NOARGS { int sys_setegid(gid_t egid); }
+136 STD { int svr4_sys_setegid(gid_t egid); }
137 STD { int svr4_sys_sysconfig(int name); }
138 NOARGS { int sys_adjtime(struct timeval *delta, \
struct timeval *olddelta); }