gistfile1.txt

[link@e0b46710-17df-ed68-a519-edb83e2cc01e ~/smartos-live/projects/illumos/usr/src/uts/common/brand/lx/syscall]$ git diff lx_fcntl.c old.c
diff --git a/usr/src/uts/common/brand/lx/syscall/lx_fcntl.c b/usr/src/uts/common/brand/lx/syscall/lx_fcntl.c
index 2699b9b..9edbd6c 100644
--- a/usr/src/uts/common/brand/lx/syscall/lx_fcntl.c
+++ b/usr/src/uts/common/brand/lx/syscall/lx_fcntl.c
@@ -173,25 +173,30 @@ lx_fcntl_getfl(int fd)
        return (rc);
 }

+#define LX_SETFL_MASK (O_NONBLOCK | O_APPEND | O_SYNC |  FASYNC);
+
 static int
 lx_fcntl_setfl(int fd, ulong_t arg)
 {
-       int new_arg;
+       int flags;
+
+       flags = fcntl(fd, F_GETFL, 0);
+       if (ttolwp(curthread)->lwp_errno != 0)
+               return (ttolwp(curthread)->lwp_errno);
+
+       flags &= ~LX_SETFL_MASK;

-       new_arg = 0;
        /* LX_O_NDELAY == LX_O_NONBLOCK, so we only check for one */
        if (arg & LX_O_NDELAY)
-               new_arg |= O_NONBLOCK;
+               flags |= O_NONBLOCK;
        if (arg & LX_O_APPEND)
-               new_arg |= O_APPEND;
+               flags |= O_APPEND;
        if (arg & LX_O_SYNC)
-               new_arg |= O_SYNC;
-       if (arg & LX_O_LARGEFILE)
-               new_arg |= O_LARGEFILE;
+               flags |= O_SYNC;
        if (arg & LX_O_ASYNC)
-               new_arg |= FASYNC;
+               flags |= FASYNC;

-       return (fcntl(fd, F_SETFL, new_arg));
+       return (fcntl(fd, F_SETFL, flags));
 }

 /* The default unprivileged limit in Linux is 1MB */