Use the glibc wrapper for unshare, which will be platform independent.

1 files changed, 8 insertions, 7 deletions

diff --git a/rainbow/rainbow/util.py b/rainbow/rainbow/util.py
index 24c3a03..be78711 100644
--- a/rainbow/rainbow/util.py
+++ b/rainbow/rainbow/util.py
@@ -240,19 +240,20 @@ syscall = libc.syscall
 # int clone(int number, int flags, void *child_stack, int *parent_tidptr, int *child_tidptr)
 
 SYS_clone = 120
-SYS_unshare = 310
 
 def clone(flags):
     """Perform sys_clone() system call, which creates a new process in
     a manner similar to fork().  If flags is SIGCHLD, then this is
-    identical to fork()."""
+    identical to fork().
+    XXX: i386 wrapper. <MS>"""
     return libc_errcheck(syscall(SYS_clone, flags, None), None, None)
 
-def unshare(flags):
-    """Perform sys_unshare() system call, which allows the calling process
-    to disassociate part of its execution context from that part of its 
-    execution context which is shared with other processes."""
-    return libc_errcheck(syscall(SYS_unshare, flags, None), None, None)
+# int unshare(int flags);
+unshare = libc.unshare
+unshare.__doc__ = "Libc's unshare call; see unshare (2)"
+unshare.argtypes = [c_int]
+unshare.restype = c_int
+unshare.errcheck = libc_errcheck
 
 # int daemon(int nochdir, int noclose);
 daemon = libc.daemon