Commit graph

110 commits

Author SHA1 Message Date
Berthold Stoeger
e29a0c1b29 import: free dc_descriptor in new device_data_t destructor
It seems that smartrak was the only part of the code that cared
about freeing the dc_descriptor. Make that a general feature
of the new device_data_t destructor, which we could implement
now that things are in C++.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2024-08-13 19:28:30 +02:00
Berthold Stoeger
01306224ff import: turn C-string in device_data_t into std::strings
It was never clear what was a pointer to a static string from
libdivecomputer and what was allocated.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2024-08-13 19:28:30 +02:00
Berthold Stoeger
0915c1ce43 cleanup: don't allocate device_data_t structure
These can all just be local objects.

Also, don't overwrite them with 0. We later want to convert the
string to std::string, where this would be very sketchy.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2024-08-13 19:28:30 +02:00
Michael Keller
009e8a32bb Fix Windows versioning as well.
Signed-off-by: Michael Keller <github@ike.ch>
2024-08-02 01:28:37 +12:00
Berthold Stoeger
3d96642b8d smartrak: remove copy_string() that makes little sense
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2024-06-01 14:43:33 +02:00
Michael Keller
1aa5438b2d Cleanup: Improve the Use of 'Planned dive' and 'Manually added dive'.
- standardise the naming;
- use it consistently;
- apply the 'samples < 50' only when putting manually added dives into
  edit mode - everywhere else manually added dives should be treated as
  such;
- do not show a warning before editing a manually added dive in planner.

Signed-off-by: Michael Keller <github@ike.ch>
2024-05-25 20:13:45 +02:00
=Michael Keller
6fc8310705 CICD: Improve Workflows.
Make multiple improvements to the existing workflows:
- create a shared custom action to deal with version number tracking
  and generation;
- use this action to add the branch name to the version for pull
  request builds;
- create a shared workflow for all debian-ish builds to avoid re-use
  by copy / paste;
- remove potential security risks by eliminating the use of
  pre-evaluated expressions (`${{ ... }}`) inside scripts;
- update outdated GitHub action versions;
- improve the consistency by renaming scripts acording to have a `.sh`
  extension;
- improve naming of generated artefacts for pull requests to include
  the correct version.

@dirkh: Unfortunately this is potentially going to break builds when it is
merged, as there is no good way to 'test' a merge build short of
merging.
We'll just have to deal with the fallout of it in a follow-up pull
request.

Signed-off-by: Michael Keller <github@ike.ch>
2024-05-13 10:19:59 +12:00
Berthold Stoeger
b6439e0420 Replace qDebug() by report_info() in smtk-import
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2024-04-23 07:47:11 +07:00
Berthold Stoeger
ec0bc2d06c cleanup: replace MIN and MAX macrors by standard versions
In C++ files, replace MIN and MAX by std::min and std::max,
respectively. There are still a few C files using these
macros. Convert them in due course.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2024-04-23 07:47:11 +07:00
Berthold Stoeger
b89029353f import: use C++ primitives in smartrak.cpp
Makes memory management more palatable.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2024-04-23 07:47:11 +07:00
Berthold Stoeger
14cfb17c1a import: compile smartrak.cpp as C++
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2024-04-23 07:47:11 +07:00
Dirk Hohndel
62477d8c65 Complete redesign of Subsurface version numbers
- for now all versions start with v6.0
- CICD builds use the monolithic build number as patch level, e.g. v6.0.12345
- local builds use the following algorithm
  - find the newest commit with a CICD build number that is included in the
    working tree
  - count the number of commits in the working tree since that commit
  - if there are no commits since the last CICD build, the local build version
    will be v6.0.12345-local
  - if there are N commits since the last CICD build, it will be
    v6.0.12345-N-local
- test builds in the CICD that don't create artifacts simply use a dummy release
  in order to not incorrectly increment the build number and also not to waste
  time and resources by manually checking out the nightly-build repo for each of
  these builds.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2024-01-06 10:55:24 -08:00
Dirk Hohndel
58fb49f243 retire the mobile version
Both Subsurface and Subsurface-mobile will share the same version number moving
forward.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2024-01-06 10:55:24 -08:00
Salvador Cuñat
a8e3cd97cd Do not try to import SLG file format 1000
This is the oldest format I know for SmartTrak databases. Probably the
first one.  It just supports one tank, only air/nitrox and the format of
the database is dramatically different from the other two formats known
to me.
It has different tables, and the "Dives" table differs a lot from newer
versions.
I don't think it's worth to give support for this format, as newer
versions of SmartTrak software automatically comvert the oldest format
to newer one.  Thus, finding a lot of this format files is not expected
except from some corner cases of users who had not updated their
SmartTrak software for years now.

Signed-off-by: Salvador Cuñat <salvador.cunat@gmail.com>
2023-12-16 17:51:47 -08:00
Berthold Stoeger
9c253ee6c5 core: introduce divelog structure
The parser API was very annoying, as a number of tables
to-be-filled were passed in as pointers. The goal of this
commit is to collect all these tables in a single struct.
This should make it (more or less) clear what is actually
written into the divelog files.

Moreover, it should now be rather easy to search for
instances, where the global logfile is accessed (and it
turns out that there are many!).

The divelog struct does not contain the tables as substructs,
but only collects pointers. The idea is that the "divelog.h"
file can be included without all the other files describing
the numerous tables.

To make it easier to use from C++ parts of the code, the
struct implements a constructor and a destructor. Sadly,
we can't use smart pointers, since the pointers are accessed
from C code. Therfore the constructor and destructor are
quite complex.

The whole commit is large, but was mostly an automatic
conversion.

One oddity of note: the divelog structure also contains
the "autogroup" flag, since that is saved in the divelog.
This actually fixes a bug: Before, when importing dives
from a different log, the autogroup flag was overwritten.
This was probably not intended and does not happen anymore.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2023-04-14 21:20:23 +02:00
Berthold Stoeger
261f07dfa4 core: add make_manually_added_dc() function
For reasons of symmetry (there is a is_manually_added_dc()
function), create a make_manually_added_dc() function.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2022-10-21 16:51:57 -07:00
Berthold Stoeger
12406786f1 core: pass dc-number to update_event_name()
The dive was passed as an argument to update_event_name(), but
the divecomputer was derived from the global dc_number variable.
That makes no sense. Therefore, pass the dc_number as argument
and update the only caller (smtk-import).

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2022-03-13 15:07:33 -07:00
Berthold Stoeger
c893d19ea4 cleanup: pass all parameters to weightsystem_t
With -Wextra, gcc/g++ complains that compound initialization
of weightsystem_t misses the auto_filled parameter. Add it.
For C++ code we might think about writing a constructor. However,
we use two versions: with and without copied string.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2022-01-02 13:51:07 -08:00
Linus Torvalds
85392343fa Re-do the libdivecomputer fingerprint save/load code
This tries to make our fingerprinting code work better, by avoiding
using the "deviceid" field that has always been unreliable because we've
calculated it multiple different ways, and even for the same version of
subsurface, it ends up changing in the middle (ie we calculate one value
initially, then re-calculate it when we have a proper serial number
string).

So instead, the fingerprinting code will look up and save the
fingerprint file using purely "stable" information that is available
early during the download:

 - the device model name (which is a string with vendor and product name
   separated by a space)

 - the DC_EVENT_DEVINFO 32-bit 'serial' number (which is not necessarily
   a real serial number at all, but hopefully at least a unique number
   for the particular product)

but because the model name is not necessarily a good filename (think
slashes and other possibly invalid characters), we hash that model name
and use the resulting hex number in the fingerprint file name.

This way the fingerprint file is unambiguous at load and save time, and
depends purely on libdivecomputer data.

But because we also need to verify that we have the actual _dive_
associated with that fingerprint, we also need to save the final
deviceid and diveid when saving the fingerprint file, so that when we
load it again we can look up the dive and verify that we have it before
we use the fingerprint data.

To do that, the fingerprint file itself contains not just the
fingerprint data from libdivecomputer, but the last 8 bytes of the file
are the (subsurface) deviceid and the diveid of the dive that is
associated with the fingerprint.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-09-19 16:51:46 -07:00
Linus Torvalds
6c4e890960 Clean up divecomputer 'device' handling
We have this odd legacy notion of a divecomputer 'device', that was
originally just basically the libdivecomputer 'EVENT_DEVINFO' report
that was associated with each dive.  So it had firmware version,
deviceid, and serial number.

It had also gotten extended to do 'nickname' handling, and it was all
confusing, ugly and bad.  It was particularly bad because it wasn't
actually a 'per device' thing at all: due to the firmware field, a dive
computer that got a firmware update forced a new 'device'.

To make matters worse, the 'deviceid' was also almost random, because
we've calculated it a couple of different ways, and libdivecomputer
itself has changed how the legacy 32-bit 'serial number' is expressed.

Finally, because of all these issues, we didn't even try to make the
thing unique, so it really ended up being a random snapshot of the state
of the dive computer at the time of a dive, and sometimes we'd pick one,
and sometimes another, since they weren't really well-defined.

So get rid of all this confusion.

The new rules:

 - the actual random dive computer state at the time of a dive is kept
   in the dive data. So if you want to know the firmware version, it
   should be in the 'extra data'

 - the only serial number that matters is the string one in the extra
   data, because that's the one that actually matches what the dive
   computer reports, and isn't some random 32-bit integer with ambiguous
   formatting.

 - the 'device id' - the thing we match with (together with the model
   name, eg "Suunto EON Steel") is purely a hash of the real serial
   number.

   The device ID that libdivecomputer reports in EVENT_DEVINFO is
   ignored, as is the device ID we've saved in the XML or git files. If
   we have a serial number, the device ID will be uniquely associated
   with that serial number, and if we don't have one, the device ID will
   be zero (for 'match anything').

   So now 'deviceid' is literally just a shorthand for the serial number
   string, and the two are joined at the hip.

 - the 'device' managament is _only_ used to track devices that have
   serial numbers _and_ nicknames. So no more different device
   structures just because one had a nickname and the other didn't etc.

   Without a serial number, the device is 'anonymous' and fundamentally
   cannot be distinguished from other devices of the same model, so a
   nickname is meaningless. And without a nickname, there is no point in
   creating a device data structure, since all the data is in the dive
   itself and the device structure wouldn't add any value..

These rules mean that we no longer have ambiguous 'device' structures,
and we can never have duplicates that can confuse us.

This does mean that you can't give a nickname to a device that cannot be
uniquely identified with a serial number, but those are happily fairly
rare (and mostly older ones).  Dirk said he'd look at what it takes to
give more dive computers proper serial numbers, and I already did it for
the Garmin Descent family yesterday.

(Honesty in advertizing: right now you can't add a nickname to a dive
computer that doesn't already have one, because such a dive computer
will not have a device structure.  But that's a UI issue, and I'll sort
that out separately)

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-08-18 13:22:02 -07:00
Salvador Cuñat
1ff488a439 smtk-import: Add support for new devices model
Include devices Ids in the DC data.
Ensure we always set a DC model string for manual dives or unsupported devices.

Signed-off-by: Salvador Cuñat <salvador.cunat@gmail.com>
2020-11-01 14:52:34 -08:00
Berthold Stoeger
8212acc992 cleanup: break out event-related code into event.[c|h]
In an effort to reduce the size of dive.h and dive.c, break out
the event related functions. Moreover event-names were handled
by the profile-code, collect that also in the new source files.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2020-10-25 13:59:52 -07:00
Berthold Stoeger
1211520ca9 build-system: switch to using C++17 as default C++ dialect
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2020-10-24 15:21:55 -07:00
Salvador Cuñat
e3a158624b smtk-import: Workaround segfault in mdbtools memcpy call
Smtk2ssrf has a segfault which matches quite well glibc's
CVE-2019-6488 (except for the x32 part).
It came from a call to memcpy in mdb_ole_read() func, used to get the
header and the profile of a dive from the database.
May be it could be fixed in libmdb but Mdbtools project has been stalled
for the past 5 years so ...

The segfault seems to be triggered by an empty profile in the first dive
in the database (a pretty common case in older Aladin DCs due to their
little memmory). The only special thing here is the fact it's the first
dive in the database structure (not the first by its index).

We can avoid the crash if we don't call mdb_ole_read_full() func on zero
sized profile field.

The problem here is we can't get the size of the fields and build the
MdbColumn in the same roud.  Happily we just need the MdbColumn struct
for the dive profile and header.  So, we can change the previous approach
using MdbColumns through almost all functions to a simpler one using the
already bounded strings by smtk_open_table() and just using the
col[n]->bind_pointer in the main function where the columns are built to
be used by mdb_ole_read_full().

Reported-by: Robert C. Helling <helling@atdotde.de>
Signed-off-by: Salvador Cuñat <salvador.cunat@gmail.com>
2020-08-13 10:02:12 -07:00
Paul Buxton
a753845d5a build-system/MXE: build with more up to date MXE tools.
- use hidapi grantlee and mdbtools from MXE
- update MXE version to use QT 5.15, and pull in libzstd and  CMake 3.17.3
- fix linking of winmm on windows build with new mxe
- add some instructions on building the container
- add some new dependancies from QT 5.15 to the packaging
- add a patch to MXE to Build qtconnectivity with native-win32-bluetooth

[Dirk Hohndel: small refactor]

Signed-off-by: Paul Buxton <paulbuxton.mail@googlemail.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2020-06-25 11:00:51 -07:00
Berthold Stoeger
95284c026e cleanup: move dive_table from dive.h to divelist.h
This allows us to decouple dive.h and divelist.h, a small step in
include disentangling.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2020-05-01 09:42:31 -07:00
Salvador Cuñat
5a0f2fc2cc [smtk-import] Fix useless NULL check and white space issues
As commented by Berthold and Dirk for previous patches.

Signed-off-by: Salvador Cuñat <salvador.cunat@gmail.com>
2020-04-19 10:59:12 -07:00
Salvador Cuñat
e139b7b15f [smtk-import] add some sanity checks
Under some circustances values stored in this arrays may be NULL or even
previously freed.  Check them to avoid further crashes.

Signed-off-by: Salvador Cuñat <salvador.cunat@gmail.com>
2020-04-19 10:59:12 -07:00
Salvador Cuñat
6c9a9b2fb5 [smtk-import] Do not create cylinders structure before libdc parsing
The d->cylinders created will be overriden by libdivecomputer parsing,
resulting in 0, 1 , may be 2 cylinders depending on DC data. This is not
what we want when importing a divelog, because we will miss all hand
entered tanks.
BTW, using get_cylinder() on tank number bigger than created, results in
a NULL pointer and a crash.
As we can't foresee how many tanks (or even it's positional numbers in
log) a diver has used, the full 10 tanks supported by SmarTrak can be
easily created and parsed using get_or_create_cylinder(), and unused
cleaned later.

Signed-off-by: Salvador Cuñat <salvador.cunat@gmail.com>
2020-04-19 10:59:12 -07:00
Robert C. Helling
285fa8acbc Grammar: replaces 'indexes' by 'indices'
Grammar-nazi ran

git grep -l 'indexes' | xargs sed -i '' -e 's/indexes/indices/g'

to prevent future wincing when reading the source code.

Unfortunatly, Qt itself is infected as in
QModelIndexList QItemSelection::indexes() const

Signed-off-by: Robert C. Helling <helling@atdotde.de>
2020-03-11 08:26:30 -07:00
Berthold Stoeger
794066b236 Cylinders: access cylinders with get_cylinder()
Instead of accessing the cylinder table directly, use the get_cylinder()
function. This gives less unwieldy expressions. But more importantly,
the function does bound checking. This is crucial for now as the code
hasn't be properly audited since the change to arbitrarily sized
cylinder tables. Accesses of invalid cylinder indexes may lead to
silent data-corruption that is sometimes not even noticed by
valgrind. Returning NULL instead of an invalid pointer will make
debugging much easier.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-11-09 19:19:04 +01:00
Berthold Stoeger
7c9f46acd2 Core: remove MAX_CYLINDERS restriction
Instead of using fixed size arrays, use a new cylinder_table structure.
The code copies the weightsystem code, but is significantly more complex
because cylinders are such an integral part of the core.

Two functions to access the cylinders were added:
get_cylinder() and get_or_create_cylinder()
The former does a simple array access and supposes that the cylinder
exists. The latter is used by the parser(s) and if a cylinder with
the given id does not exist, cylinders up to that id are generated.

One point will make C programmers cringe: the cylinder structure is
passed by value. This is due to the way the table-macros work. A
refactoring of the table macros is planned. It has to be noted that
the size of a cylinder_t is 64 bytes, i.e. 8 long words on a 64-bit
architecture, so passing on the stack is probably not even significantly
slower than passing as reference.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-11-09 19:19:04 +01:00
Berthold Stoeger
5da09a21bb Cleanup: move error reporting function declarations to errorhelper.h
Move the declarations of the "report_error()" and "set_error_cb()"
functions and the "verbose" variable to errorhelper.h.
Thus, error-reporting translation units don't have to import the
big dive.h header file.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-08-08 16:26:30 -07:00
Salvador Cuñat
99b5106381 [smtk-import] fix mem leaks on site/location failure management
Signed-off-by: Salvador Cuñat <salvador,cunat@gmail.com>
2019-08-02 08:58:35 +02:00
Salvador Cuñat
ac1408af5f [smtk-import] avoid infinite loop on index failure
As Berthold points out, a failure to match the site or location index
will result in an infinite loop with previous patch.
With this one the loop will end after reading the last table row even if
no idx is matched. But ... If we asume this situation is possible the
retrieved data would be wrong, and ending the function without filling
the site structure is mandatory too.

Signed-off-by: Salvador Cuñat <salvador.cunat@gmail.com>
2019-08-02 08:58:35 +02:00
Salvador Cuñat
218567bb86 fix site/location build issue
We were assuming these tables were sorted with their indexes, but it
happens to be false, under some circustances at least.

Reported-by: Andreas Hagberg <scubasoft@gmail.com>
Signed-off-by: Salvador Cuñat <salvador.cunat@gmail.com>
2019-08-02 08:58:35 +02:00
Berthold Stoeger
a5e7f4253a Core: dynamically resize weight table
Replace the fixed-size weightsystem table by a dynamically
relocated table. Reuse the table-macros used in other parts
of the code.

The table stores weightsystem entries, not pointers to
weightsystems. Thus, ownership of the description string is
taken when adding a weightsystem. An extra function adds
a cloned weightsystem at the end of the table.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-07-18 06:01:07 -07:00
Berthold Stoeger
6200909ba4 Cleanup: move tag functions into own translation unit
Make dive.h a bit slimmer. It's only a drop in the bucket - but at
least when modifying tag functions not the *whole* application is
rebuilt anymore.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-06-19 13:11:10 -07:00
Berthold Stoeger
9ed5cf16a4 Coding style: remove Java-style function definition
Remove a few cases of
	void fun() {
		...
	}

While touching these functions, fix a few other whitespace
coding style violations.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-04-12 18:19:07 +03:00
Berthold Stoeger
31291b1c56 Dive site: set UUID only on save or load
Since the UUID will be overwritten on save and is only used on save
and load, set it only on save or load. For other created dive sites,
leave the UUID field uninitialized.

This means that the UUID will change between saves. Let's see how
the git saver handles that.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-04-12 18:19:07 +03:00
Berthold Stoeger
f6e7bdc5ef Dive site: add dive site table parameter to dive site functions
To enable undo of dive site functions, it is crucial to work
with different dive site tables. Therefore add a dive site table
parameter to dive site functions. For now, always pass the global
dive site table. Thus, this commit shouldn't alter any functionality.

After this change, a simple search for dive_site_table reveals all
places where the global dive site table is accessed.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-04-12 18:19:07 +03:00
Berthold Stoeger
643a964d09 Cleanup: unconstify string argument to add_to_string()
add_to_string() frees the original string that is passed in. This
should therefore not be of "const char *" type, as the contents
of the string *will* be modified (or more precisely: destroyed).

Same for the congener smtk_concat_str().

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-03-27 13:58:15 +01:00
Rolf Eike Beer
dc254716cf CMake: call cmake_minimim_required() before project()
Some policies can affect how project() works.

Signed-off-by: Rolf Eike Beer <eike@sf-mail.de>
2019-03-19 12:41:32 -07:00
Rolf Eike Beer
d0acee4083 CMake: let CMake set the needed flags for C and C++ standards
Signed-off-by: Rolf Eike Beer <eike@sf-mail.de>
2019-03-19 12:41:32 -07:00
Rolf Eike Beer
f667129ed9 CMake: simplify check if library was found
Signed-off-by: Rolf Eike Beer <eike@sf-mail.de>
2019-03-05 13:27:54 -08:00
Rolf Eike Beer
f555fa787f CMake: simplify writing qt.conf on Windows
Signed-off-by: Rolf Eike Beer <eike@sf-mail.de>
2019-03-05 13:27:54 -08:00
Berthold Stoeger
d1971a64f9 Core: Rename functions to more generic names
Rename
 - dive_get_insertion_index() -> dive_table_get_insertion_index()
 - unregister_dive_from_table() -> remove_from_dive_table()
 - get_idx_in_table() -> get_idx_in_dive_table()
 - sort_table() -> sort_dive_table()
This will make it more straight-forward to generate these functions
from macros.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-01-09 20:58:04 -08:00
Berthold Stoeger
724055f0af Dive site: replace dive->dive_site_uuid by dive_site
Replace the UUID reference of struct dive by a pointer to dive_site.
This commit is rather large in lines, but nevertheless quite simple
since most of the UUID->pointer work was done in previous commits.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-10-29 00:09:31 +00:00
Berthold Stoeger
d3a7c5448f Dive site: return pointer to dive_site in create_dive_site_*()
This changes more of the dive-site interface to return pointers
instead of UUIDs. Currently, most call sites directly extract
UUIDs afterwards. Ultimately, the UUIDs will be generally replaced
by pointers, which will then simplify these callers.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-10-29 00:09:31 +00:00
Berthold Stoeger
68961a169e Dive site: return pointer to dive_site in get_dive_site_*()
As a first step in removing dive-site uuids, change the interface
of the get_dive_site_*() functions to return pointers instead
of uuids. This makes code a bit more complicated in places where
the uuid is extracted afterwards (needed NULL check). Nevertheless,
these places should disappear once pointers instead of uuids are
stored in the dive-structures.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-10-29 00:09:31 +00:00