This is a small couple of functions for joining lists of strings
together.  The lists can either be varadic arguments or arrays, and
delimiters are optional.

This patch incorporates some advice from David Gibson on the original
module.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

Mainly include path fixes.

Also Samba's unit tests were enhanced to detect the prefixes
helpapi and helprun to indicate an object was to be linked against
only api/run tests.  We hack around that by #including the helper
code instead.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

It was missing dependency information, and a description of ntdb.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

The other option would be to require Python.h, which seems overkill.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

The Authors entries were added based on source file copyright
statements. Full details can be found via the upstream Samba Git
repository.
Signed-off-by: David Disseldorp <ddiss@suse.de>

Signed-off-by: David Disseldorp <ddiss@suse.de>

As part of Samba, ntdb was built using the Waf build system. As part of
ccan, convert this to a simple Makefile, and add a static config.h.

The Makefile only builds core ntdb components for now - libntdb and
tools.
Signed-off-by: David Disseldorp <ddiss@suse.de>

ntdb is a partial rewrite of Samba's Trivial Database, providing > 4GB
database scalability and an improved API.
Obtained from the Samba repository at git://git.samba.org/samba.git, as
of bd13405e8570e9a5942165a8c52a2bc3fdc9d96e.

See Samba's Git changelog for authorship details.
Signed-off-by: David Disseldorp <ddiss@suse.de>

Kalle shows the superiority of 3 (as does the paper for > 50 buckets).

https://github.com/kallerosenbaum/bitcoin-iblt/wiki/Diff-count-VS-failure-probabilitySigned-off-by: Rusty Russell <rusty@rustcorp.com.au>

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

This lets you annotate your headers with notes for cdump.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

We can now parse array sizes properly: comments and extra [] pairs
will no longer confuse us.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

This was found because ccanlint now looks for examples here too.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

pushpull module doesn't have examples in pushpull.h.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

Reported-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

This catches duplicate timer_add() calls, as well as meaning we don't
need to track if the timer is active before calling timer_del().
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

The linked list method was problematic, especially if timers delete
other expired timers (eg. the next one in the expired list: the timer_del
will delete it from expired, but that's a bit unexpected).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

The BYTESTRING macro is constant, since it's designed to take a string
literal, but it doesn't count as constant since it involves an (inlined)
function call.  That means it can't be used in a static storage duration
initializer.

Unfortunately, I can't see a portable way to make something which can be
used as an initializer, but which can also be used in other contexts where
BYTESTRING() can be used, so this patch introduces BYTESTRING_INIT() which
is similar to BYTESTRING() but produces an initializer.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>

The bytestring() constructor function satisfies the constraints of
CONST_FUNCTION, so mark it as such.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>

This introduces the functions bytestring_splitstr_first() and
bytestring_splitstr_next() which can be used to iterate through substrings
of a bytestring separated by a specified substring.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>

This introduces the functions bytestring_splitchrs_first() and
bytestring_splitchrs_next() which can be used to iterate through substrings
of a bytestring separated by any of a given set of delimiter characters.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>

This introduces the functions bytestring_splitchr_first() and
bytestring_splitchr_next() which can be used to iterate through substrings
of a bytestring separated by a single, specified delimiter character.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>

Add bytestring_spn() and bytestring_cspn() functions which, in analogy to
strspn() and strcspn() return the lengths of initial sub-bytestrings which
either contain only a given set of bytes, or anything except a given set
of bytes.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>

Add a bytestring_bytestring() function which, in analogy with strstr() and
memmem() finds one bytestring within another.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>

Add bytestring equivalents of the index() and rindex() standard functions
which search for characters/bytes within a bytestring.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>