2882 implement libzfs_core
2883 changing "canmount" property to "on" should not always remount dataset
2900 "zfs snapshot" should be able to create multiple, arbitrary snapshots at once
Reviewed by: George Wilson <george.wilson@delphix.com>
Reviewed by: Chris Siden <christopher.siden@delphix.com>
Reviewed by: Garrett D'Amore <garrett@damore.org>
Reviewed by: Bill Pijewski <wdp@joyent.com>
Reviewed by: Dan Kruchinin <dan.kruchinin@gmail.com>

*** 20,30 ****
   */
  
  /*
   * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
   * Copyright 2010 Nexenta Systems, Inc. All rights reserved.
!  * Copyright (c) 2011 by Delphix. All rights reserved.
   */
  
  #include <stdio.h>
  #include <stdlib.h>
  #include <strings.h>
--- 20,30 ----
   */
  
  /*
   * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
   * Copyright 2010 Nexenta Systems, Inc. All rights reserved.
!  * Copyright (c) 2012 by Delphix. All rights reserved.
   */
  
  #include <stdio.h>
  #include <stdlib.h>
  #include <strings.h>
*** 299,314 ****
   */
  int
  zfs_iter_snapspec(zfs_handle_t *fs_zhp, const char *spec_orig,
      zfs_iter_f func, void *arg)
  {
!         char buf[ZFS_MAXNAMELEN];
!         char *comma_separated, *cp;
          int err = 0;
          int ret = 0;
  
!         (void) strlcpy(buf, spec_orig, sizeof (buf));
          cp = buf;
  
          while ((comma_separated = strsep(&cp, ",")) != NULL) {
                  char *pct = strchr(comma_separated, '%');
                  if (pct != NULL) {
--- 299,313 ----
   */
  int
  zfs_iter_snapspec(zfs_handle_t *fs_zhp, const char *spec_orig,
      zfs_iter_f func, void *arg)
  {
!         char *buf, *comma_separated, *cp;
          int err = 0;
          int ret = 0;
  
!         buf = zfs_strdup(fs_zhp->zfs_hdl, spec_orig);
          cp = buf;
  
          while ((comma_separated = strsep(&cp, ",")) != NULL) {
                  char *pct = strchr(comma_separated, '%');
                  if (pct != NULL) {
*** 362,371 ****
--- 361,371 ----
                          if (ret == 0)
                                  ret = err;
                  }
          }
  
+         free(buf);
          return (ret);
  }
  
  /*
   * Iterate over all children, snapshots and filesystems