LCOV - code coverage report
Current view: top level - shared - dm-util.c (source / functions) Hit Total Coverage
Test: systemd_full.info Lines: 0 13 0.0 %
Date: 2019-08-23 13:36:53 Functions: 0 1 0.0 %
Legend: Lines: hit not hit | Branches: + taken - not taken # not executed Branches: 0 8 0.0 %

           Branch data     Line data    Source code
       1                 :            : #include <fcntl.h>
       2                 :            : #include <linux/dm-ioctl.h>
       3                 :            : #include <string.h>
       4                 :            : #include <sys/ioctl.h>
       5                 :            : 
       6                 :            : #include "dm-util.h"
       7                 :            : #include "fd-util.h"
       8                 :            : #include "string-util.h"
       9                 :            : 
      10                 :          0 : int dm_deferred_remove(const char *name) {
      11                 :            : 
      12                 :          0 :         struct dm_ioctl dm = {
      13                 :            :                 .version = {
      14                 :            :                         DM_VERSION_MAJOR,
      15                 :            :                         DM_VERSION_MINOR,
      16                 :            :                         DM_VERSION_PATCHLEVEL
      17                 :            :                 },
      18                 :            :                 .data_size = sizeof(dm),
      19                 :            :                 .flags = DM_DEFERRED_REMOVE,
      20                 :            :         };
      21                 :            : 
      22                 :          0 :         _cleanup_close_ int fd = -1;
      23                 :            : 
      24         [ #  # ]:          0 :         assert(name);
      25                 :            : 
      26                 :            :         /* Unfortunately, libcryptsetup doesn't provide a proper API for this, hence call the ioctl()
      27                 :            :          * directly. */
      28                 :            : 
      29         [ #  # ]:          0 :         if (strlen(name) >= sizeof(dm.name))
      30                 :          0 :                 return -ENODEV; /* A device with a name longer than this cannot possibly exist */
      31                 :            : 
      32                 :          0 :         fd = open("/dev/mapper/control", O_RDWR|O_CLOEXEC);
      33         [ #  # ]:          0 :         if (fd < 0)
      34                 :          0 :                 return -errno;
      35                 :            : 
      36                 :          0 :         strncpy_exact(dm.name, name, sizeof(dm.name));
      37                 :            : 
      38         [ #  # ]:          0 :         if (ioctl(fd, DM_DEV_REMOVE, &dm))
      39                 :          0 :                 return -errno;
      40                 :            : 
      41                 :          0 :         return 0;
      42                 :            : }

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