The header defines a simple wrapper for free() that can be used with
gcc's and clang's __attribute__((__cleanup__(<cleanup-fun>))) macro.
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
Warn when macros __TIME__, __DATE__ or __TIMESTAMP__ are encountered as
they might prevent bit-wise-identical reproducible compilations.
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
Warn about left shift overflows. This warning is enabled by default in
C99 and C++11 modes (and newer).
-Wshift-overflow=2
This warning level also warns about left-shifting 1 into the sign bit,
unless C++14 mode (or newer) is active.
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
Warn whenever a local variable or type declaration shadows another
variable, parameter, type, class member (in C++), or instance variable
(in Objective-C) or whenever a built-in function is shadowed.
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
-Wimplicit-fallthrough=5 doesn’t recognize any comments as fallthrough
comments, only attributes disable the warning.
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
Enable -Wformat plus additional format checks. Currently equivalent to
-Wformat -Wformat-nonliteral -Wformat-security -Wformat-y2k.
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
Warn whenever a function is defined with a return type that defaults to
int. Also warn about any return statement with no return value in a
function whose return type is not void (falling off the end of the
function body is considered returning without a value).
For C only, warn about a return statement with an expression in a
function whose return type is void, unless the expression type is also
void. As a GNU extension, the latter case is accepted without a warning
unless -Wpedantic is used.
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
Warn about functions that might be candidates for attributes pure, const
or noreturn or malloc.
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
Warn about uninitialized variables that are initialized with themselves.
Note this option can only be used with the -Wuninitialized option.
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
Warn if an old-style function definition is used. A warning is given
even if there is a previous prototype.
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
Warn if a user-supplied include directory does not exist.
This already surfaced a bug that is fixed by this commit.
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
This file contains the files one needs to chown to successfully delegate
cgroup files to unprivileged users.
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
When calling lxc-create, if the template exists but is not executable, we end with the following error messages which make believe that the template file does not exist when it is merely a execute access problem:
lxc-create: ctn00: utils.c: get_template_path: 918 No such file or directory - bad template: /.../lxc-busybox
lxc-create: ctn00: lxccontainer.c: do_lxcapi_create: 1786 Unknown template "/.../lxc-busybox"
lxc-create: ctn00: tools/lxc_create.c: main: 327 Failed to create container ctn00
Actually internally the errno is lost as the following code triggers a useless access to (strace output):
access("/.../lxc-busybox", X_OK) = -1 ENOENT (No such file or directory)
With the above fix, we get a more explicit error message when the template file is missing the "execute" bit:
lxc-create: bbc: utils.c: get_template_path: 917 Permission denied - Bad template pathname: /tmp/azerty
lxc-create: bbc: lxccontainer.c: do_lxcapi_create: 1816 Unknown template "/tmp/azerty"
lxc-create: bbc: tools/lxc_create.c: main: 331 Failed to create container bbc
With the above fix, we get a more explicit error message when the pathname of the template file is incorrect:
lxc-create: bbc: utils.c: get_template_path: 917 No such file or directory - Bad template pathname: /tmp/qwerty
lxc-create: bbc: lxccontainer.c: do_lxcapi_create: 1816 Unknown template "/tmp/qwerty"
lxc-create: bbc: tools/lxc_create.c: main: 331 Failed to create container bbc
Signed-off-by: Rachid Koucha <rachid.koucha@gmail.com>
This file grows indefinitely : upon each DHCP lease renew,
the "nameserver ..dns..." line is added at the end of the file.
Make a "grep" in the file to make sure that the same line
does not already exist.
Signed-off-by: Rachid Koucha <rachid.koucha@gmail.com>
