NEX-16818 Add fksmbcl development tool
NEX-17264 SMB client test tp_smbutil_013 fails after NEX-14666
Reviewed by: Evan Layton <evan.layton@nexenta.com>
Reviewed by: Matt Barden <matt.barden@nexenta.com>
and: (fix ref leaks)

*** 20,29 ****
--- 20,31 ----
   */
  
  /*
   * Copyright 2010 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
+  *
+  * Copyright 2017 Nexenta Systems, Inc.  All rights reserved.
   */
  
  /*
   * ACL API for smbfs
   */
*** 81,99 ****
          error = mb_init_sz(mbp, MAX_RAW_SD_SIZE);
          if (error)
                  return (error);
  
          m = mbp->mb_top;
          iocb.addr = mtod(m, uintptr_t);
          iocb.alloc = m->m_maxlen;
          iocb.used = 0;
          iocb.selector = selector;
  
          /*
           * This does the OTW Get.
           */
!         if (ioctl(fd, SMBFSIO_GETSD, &iocb) < 0) {
                  error = errno;
                  goto errout;
          }
  
          m->m_len = iocb.used;
--- 83,102 ----
          error = mb_init_sz(mbp, MAX_RAW_SD_SIZE);
          if (error)
                  return (error);
  
          m = mbp->mb_top;
+         bzero(&iocb, sizeof (iocb));
          iocb.addr = mtod(m, uintptr_t);
          iocb.alloc = m->m_maxlen;
          iocb.used = 0;
          iocb.selector = selector;
  
          /*
           * This does the OTW Get.
           */
!         if (nsmb_ioctl(fd, SMBFSIO_GETSD, &iocb) < 0) {
                  error = errno;
                  goto errout;
          }
  
          m->m_len = iocb.used;
*** 118,136 ****
                  return (error);
  
          if (mbp->mb_top != m)
                  mb_initm(mbp, m);
  
          iocb.addr = mtod(m, uintptr_t);
          iocb.alloc = m->m_maxlen;
          iocb.used  = m->m_len;
          iocb.selector = selector;
  
          /*
           * This does the OTW Set.
           */
!         if (ioctl(fd, SMBFSIO_SETSD, &iocb) < 0)
                  error = errno;
  
          return (error);
  }
  
--- 121,140 ----
                  return (error);
  
          if (mbp->mb_top != m)
                  mb_initm(mbp, m);
  
+         bzero(&iocb, sizeof (iocb));
          iocb.addr = mtod(m, uintptr_t);
          iocb.alloc = m->m_maxlen;
          iocb.used  = m->m_len;
          iocb.selector = selector;
  
          /*
           * This does the OTW Set.
           */
!         if (nsmb_ioctl(fd, SMBFSIO_SETSD, &iocb) < 0)
                  error = errno;
  
          return (error);
  }