Signed-off-by: 2xsec <dh48.jeong@samsung.com>

clang-format finds a few format issues, lets fix these up.

Fix format issues found by clang-format.
Signed-off-by: Tobin C. Harding <me@tobin.cc>

Variable is used in one plaice only within a nested statement block.
The code is cleaner if the variable is declared near where it is used.
Found using cppcheck.

Reduce the scope of 'count' variable.
Signed-off-by: Tobin C. Harding <me@tobin.cc>

cppcheck emits warning

  Variable 'ofd' is reassigned a value before the old one has been used.

We do not need to initialise a variable if it is assigned to on first use.
Signed-off-by: Tobin C. Harding <me@tobin.cc>

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
Fixes: 6947153d ("conf: use mknod() to create dummy mount target")

Signed-off-by: 2xsec <dh48.jeong@samsung.com>

Signed-off-by: 2xsec <dh48.jeong@samsung.com>

When running lxc-autostart we do not currently indicate failure to start
containers, either partial failure i.e. some of the containers failed to
start or total failure i.e. all of the containers failed to start.

Indicate container startup failure.  For total failure exit(1), for
partial failure exit(2).
Signed-off-by: Tobin C. Harding <me@tobin.cc>

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

Calculate length only once.
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

Signed-off-by: 2xsec <dh48.jeong@samsung.com>

The issue was introduced in PR (https://github.com/lxc/lxc/pull/1705):

Previous code:
```
  if (lseek(fd, size, SEEK_SET) < 0) {
    SYSERROR("Error seeking to set new loop file size");
    close(fd);
    return -1;
  }
```
New code:
```
  int fd, ret;

  [...]

  ret = lseek(fd, size, SEEK_SET);
  if (ret < 0) {
    SYSERROR("Failed to seek to set new loop file size for loop "
       "file \"%s\"", path);
    close(fd);
    return -1;
  }
```

Based on http://man7.org/linux/man-pages/man2/lseek.2.html:
> Upon successful completion, lseek() returns the resulting offset
> location as measured in bytes from the beginning of the file.

So in this case value of `size` and `size` is `uint64_t`.

This fix change declaration of `ret`, but it can be fixed in other ways.
Let me know what works for you.

This PR fix issues (https://github.com/lxc/lxc/issues/1872).
Signed-off-by: Lukasz Jagiello <lukasz@wikia-inc.com>

Initialize buf to avoid parsing random data later on.
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

Signed-off-by: 2xsec <dh48.jeong@samsung.com>

Signed-off-by: 2xsec <dh48.jeong@samsung.com>

Signed-off-by: 2xsec <dh48.jeong@samsung.com>

Signed-off-by: 2xsec <dh48.jeong@samsung.com>

Signed-off-by: 2xsec <dh48.jeong@samsung.com>

Signed-off-by: 2xsec <dh48.jeong@samsung.com>

Signed-off-by: 2xsec <dh48.jeong@samsung.com>

Signed-off-by: 2xsec <dh48.jeong@samsung.com>

Signed-off-by: 2xsec <dh48.jeong@samsung.com>

Signed-off-by: 2xsec <dh48.jeong@samsung.com>

Signed-off-by: 2xsec <dh48.jeong@samsung.com>

Signed-off-by: 2xsec <dh48.jeong@samsung.com>

Signed-off-by: 2xsec <dh48.jeong@samsung.com>

Since we switched to execveat() whenever possible in
commit 4b5b3a2a ("execute: use execveat() syscall if supported")
it is unlikely that remove_self() has any job to do at all. So dumb down the
error levels.

Closes #2536.
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

checkpatch emits two warnings of type:

    CHECK: Comparison to NULL could be written "!foo"

Prefer `(!foo)` instead of `(foo == NULL)`.

Do not use comparison to NULL, use !foo
Signed-off-by: Tobin C. Harding <me@tobin.cc>

checkpatch emits warning:

    WARNING: Statements terminations use 1 semicolon

Remove typo'd semicolon.
Signed-off-by: Tobin C. Harding <me@tobin.cc>

checkpatch emits warning:

    WARNING: Block comments use a trailing */ on a separate line

Put trailing */ on a separate line.
Signed-off-by: Tobin C. Harding <me@tobin.cc>

checkpatch emits warning:

    WARNING: unnecessary whitespace before a quoted newline

Remove unnecessary whitespace before a quoted newline
Signed-off-by: Tobin C. Harding <me@tobin.cc>

checkpatch emits warning:

WARNING: static char array declaration should probably be static const char

Use 'const' for static string constant (array of chars).
Signed-off-by: Tobin C. Harding <me@tobin.cc>

checkpatch warns about a bunch of whitespace issues.  Fix the
non-controversial ones.

Fix whitespace issues found by checkpatch.
Signed-off-by: Tobin C. Harding <me@tobin.cc>

checkpatch emites warning:

    WARNING: braces {} are not necessary for single statement blocks

Do not use braces for single statement block.
Signed-off-by: Tobin C. Harding <me@tobin.cc>