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       1                 :             : /*
       2                 :             :  * Copyright (c) 2016, Citrix Systems, Inc.
       3                 :             :  *
       4                 :             :  * All rights reserved.
       5                 :             :  *
       6                 :             :  * Redistribution and use in source and binary forms, with or without
       7                 :             :  * modification, are permitted provided that the following conditions are met:
       8                 :             :  * 
       9                 :             :  *  1. Redistributions of source code must retain the above copyright
      10                 :             :  *     notice, this list of conditions and the following disclaimer.
      11                 :             :  *  2. Redistributions in binary form must reproduce the above copyright
      12                 :             :  *     notice, this list of conditions and the following disclaimer in the
      13                 :             :  *     documentation and/or other materials provided with the distribution.
      14                 :             :  *  3. Neither the name of the copyright holder nor the names of its 
      15                 :             :  *     contributors may be used to endorse or promote products derived from 
      16                 :             :  *     this software without specific prior written permission.
      17                 :             :  *
      18                 :             :  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
      19                 :             :  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
      20                 :             :  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
      21                 :             :  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
      22                 :             :  * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
      23                 :             :  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
      24                 :             :  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
      25                 :             :  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
      26                 :             :  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
      27                 :             :  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
      28                 :             :  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
      29                 :             :  */
      30                 :             : 
      31                 :             : #ifdef HAVE_CONFIG_H
      32                 :             : #include "config.h"
      33                 :             : #endif
      34                 :             : 
      35                 :             : #include <stdio.h>
      36                 :             : #include <errno.h>
      37                 :             : #include <stdlib.h>
      38                 :             : #include <unistd.h>
      39                 :             : #include <string.h>
      40                 :             : #include <getopt.h>
      41                 :             : 
      42                 :             : #include "tap-ctl.h"
      43                 :             : #include "util.h"
      44                 :             : 
      45                 :             : int
      46                 :           0 : tap_ctl_unpause(const int id, const int minor, const char *params, int flags,
      47                 :             :                 char *secondary, const char *logpath)
      48                 :             : {
      49                 :           0 :         int err;
      50                 :           0 :         tapdisk_message_t message;
      51                 :             : 
      52         [ #  # ]:           0 :         memset(&message, 0, sizeof(message));
      53                 :           0 :         message.type = TAPDISK_MESSAGE_RESUME;
      54                 :           0 :         message.cookie = minor;
      55                 :           0 :         message.u.params.flags = flags;
      56                 :             : 
      57         [ #  # ]:           0 :         if (params)
      58                 :           0 :                 safe_strncpy(message.u.params.path, params,
      59                 :             :                              sizeof(message.u.params.path));
      60         [ #  # ]:           0 :         if (secondary) {
      61         [ #  # ]:           0 :                 err = snprintf(message.u.params.secondary,
      62                 :             :                                sizeof(message.u.params.secondary), "%s",
      63                 :             :                                secondary);
      64         [ #  # ]:           0 :                 if (err >= sizeof(message.u.params.secondary)) {
      65                 :           0 :                         EPRINTF("secondary image name too long\n");
      66                 :           0 :                         return -ENAMETOOLONG;
      67                 :             :                 }
      68                 :             :         }
      69         [ #  # ]:           0 :         if (logpath) {
      70                 :           0 :                 err = tap_ctl_connect_send_receive_ex(id, &message, logpath, 0, NULL, NULL);
      71                 :             :         }
      72                 :             :         else {
      73                 :           0 :                 err = tap_ctl_connect_send_and_receive(id, &message, NULL);
      74                 :             :         }
      75                 :             : 
      76         [ #  # ]:           0 :         if (err)
      77                 :             :                 return err;
      78                 :             : 
      79                 :           0 :         if (message.type == TAPDISK_MESSAGE_RESUME_RSP
      80         [ #  # ]:           0 :                         || message.type == TAPDISK_MESSAGE_ERROR)
      81                 :           0 :                 err = -message.u.response.error;
      82                 :             :         else {
      83                 :           0 :                 EPRINTF("got unexpected result '%s' from %d\n",
      84                 :             :                                 tapdisk_message_name(message.type), id);
      85                 :             :                 err = -EINVAL;
      86                 :             :         }
      87                 :             : 
      88         [ #  # ]:           0 :         if (err)
      89                 :           0 :                 EPRINTF("unpause failed: %s\n", strerror(-err));
      90                 :             : 
      91                 :             :         return err;
      92                 :             : }