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This modifies the strv in-place, replacing strings with their escaped
version. It's mostly just a convenience function for when you need to
join a strv together because it's passed as a string to something, and
the separator needs escaping.
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This is for shell-style \ escaping rather than quoting, which while it
has the same effect in produced shell commands, is not exclusively
useful for shell commands.
shell_escape would be useful for producing sed commands, as you would be
able to \ escape the normal special characters, plus whichever argument
separator was chosen; or it could be used to escape arguments passed to
the overlayfs mount command.
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strv_split_extract is to strv_split_quotes as extract_first_word was to
unquote_first_word.
Now there's extract_first_word for extracting a single argument,
extract_many_words for extracting a bounded number of arguments,
and strv_split_extract for extracting an arbitrary number of arguments.
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If EXTRACT_DONT_COALESCE_SEPARATORS is passed, then leading separators,
trailing separators and spans of multiple separators aren't skipped, and
empty arguments from before, after or between separators may be extracted.
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This adds an EXTRACT_QUOTES option to allow the previous behaviour, of
not interpreting any character inside ' or " quotes as separators.
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It now takes a separators argument, which defaults to WHITESPACE if NULL
is passed.
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To add a flag to allow an empty string to be parsed as an argument, we
need to be able to distinguish between the end of the string, and after
the end of the string, so when we *do* reach the end, let's set *p to
this state.
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Manual merge of https://github.com/systemd/systemd/pull/751.
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All users are now setting lowercase=false.
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Tests are modified to check behaviour with relax and without relax.
New tests are added for hostname_cleanup().
Tests are moved a new file (test-hostname-util) because there's
now a bunch of them.
New parameter is not used anywhere, except in tests, so there should
be no observable change.
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networkd: save private-zone DHCP options
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Alpha does not have a getpid syscall, but rather has getxpid to match
OSF/1.
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- Add smack xattr lookup table
- Unify all of mac_smack_apply_xxx{_fd}() to mac_smack_apply() and
mac_smack_apply_fd().
- Add smack xattr read apis similar with apply apis as
mac_smack_read{_fd}().
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To get xattr of given path or fd on newly allocated buffer, add new
helper api getxattr_malloc() and fgetxattr_malloc().
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Similar in function to LIST_INSERT_AFTER, this will insert a new element
into the list before the specified position. If the specified position
is NULL, the element is added as the tail of the list.
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add O_NONBLOCK to terminal handling
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That's just handle this as a normal error.
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In case of non-CLOCAL lines (i.e. those with carrier detect configured)
we shouldnt wait for a carrier if all we try to do is reset the TTY.
Hence, whenever we open such a TTY pass O_NONBLOCK.
Note that we continue to open ttys we intend to write to without
O_ONBLOCK, we only add it in cases we invoke ioctl()s or other terminal
operations without reading or writing to the device.
Fixes #835.
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tree-wide: introduce mfree()
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Pretty trivial helper which wraps free() but returns NULL, so we can
simplify this:
free(foobar);
foobar = NULL;
to this:
foobar = mfree(foobar);
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busctl: Misc cleanups and a fix (v2)
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In member_compare_func(), it compares interface, type and name of
members. But as it can contain NULL pointer, it needs to check them
before calling strcmp(). So make it as a separate strcmp_ptr
function (named after streq_ptr) so that it can be used by others.
Also let streq_ptr() to use it in order to make the code simpler.
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Given two bitmaps and the following code:
Bitmap *a = bitmap_new(), *b = bitmap_new();
bitmap_set(a, 1);
bitmap_clear(a);
bitmap_set(a, 0);
bitmap_set(b, 0);
These two bitmaps should now have the same bits set and they should be
equal but bitmap_equal() will return false in this case because while
bitmap_clear() resets the number of elements in the array it does not
clear the array and bitmap_set() expects the array to be cleared.
GREEDY_REALLOC0 looks at the allocated size and not the actual size so
it does not clear any memory.
Fix this by freeing the allocated memory and resetting the whole Bitmap
to an initial state in bitmap_clear().
This also adds test code for this issue.
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Given two bitmaps and the following code:
Bitmap *a = bitmap_new(), *b = bitmap_new();
bitmap_set(a, 0);
bitmap_unset(a, 0);
These two bitmaps should now have the same bits set and they should be
equal but bitmap_equal() will return false in this case because the
bitmaps array in a is larger because of the bit which was previously
set.
Fix this by comparing only the bits which exists in both bitmaps and
then check that the rest of the bits (if any) is all zero.
This also adds test code for this issue.
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Probably a typo, checking 'ret' instead of the return value 'p'. This
might cause the function to return failure, even though it succeeded.
Furthermore, it might leak resources.
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Fix a memory leak introduced by 2fc09a9c. 's' is used twice in this
function, and if free_and_strdup() fails, the pointer is left untouched.
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Use free_and_strdup() where appropriate and replace equivalent,
open-coded versions.
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Some places invoked fflush() directly with their own manual error
checking, let's unify all that by using fflush_and_check().
This also unifies the general error paths of fflush()+rename() file
writers.
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Instead, make sure that all callers log properly.
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unquote_first_word: parse ` '' ` as an empty argument instead of no arg
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Fileio fixes
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An empty env block is completely valid, hence return it as such, and
don't turn it into an error.
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so far, when we read something from /proc/$PID we would pass on the
ENOENT from the kernel as error, if the process was missing. With this
change we systematically convert this to ESRCH, which is the more
appropriate error code, and what all the other glibc/syscalls like
kill() use.
All code that calls these functions should be fine with this change. In
fact, one invocation of get_process_exe() in bus-creds.c already assumed
ESRCH would be returned if a process is missing, and this assumption is
now validated after the change.
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According to our coding style guidelines we shouldn't clobber
pass-by-ref arguments on failure, hence don't do so here either.
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copy: when we recursively copy a directory tree, copy everything
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Don't ignore hidden files and directories.
Fixes #386
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Oracle kvm
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Virtualbox 5.0 now supports kvm hypervisor. In this case cpuid
identidies as "kvm", which breaks units depending on
ConditionVirtualization=oracle.
So return "oracle" even with kvm hypervisor.
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networkd: add bridge link properties
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a) use memcmp() to compare bitmaps efficiently
b) use UINT64_C() macro instead of ULL suffixes to get right suffix for
uint64_t constants
c) add a few assert()s
d) when comparing integers with 0 we generally try to make this explicit
with "!= 0".
e) remove redundant bitmap_isset() if check, as we don't have it in
bitmap_isset() either.
f) It should be fine to invoke bitmap_unset() on a NULL bitmap
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basic: bitmap: use uint64_t instead if long long unsigned
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Hook up container userns with nss-mymachines
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long long unsigned is always 64 bit wide, so use a more readable type.
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