typed_wu() either sends a telegram to a single recipient @to, or an
announcement. It initializes @np to getnatp(to) only when sending a
telegram. It also uses it only then. Clang is cool with this, but
GCC gets confused and warns "‘np’ may be used uninitialized". Ron
Koenderink reports Visual Studio 2019 even flags it as an error.
Time to clean this up. Initialize @np to NULL when sending an
announcement. Fuse conditionals while there.
Signed-off-by: Markus Armbruster <armbru@pond.sub.org>
launch_missile() initializes @n to the target ship number only when
the target is a ship. It also uses it only then, to re-get the ship.
Clang is cool with this, but GCC gets confused and warns "‘n’ may be
used uninitialized".
Use target_ship.shp_uid instead of @n to avoid the warning.
Similar issue in c_fire(): use vship.shp_uid instead of for @vhsipno.
Signed-off-by: Markus Armbruster <armbru@pond.sub.org>
c_load() initializes @ich only when @type is EF_SECTOR. It also uses
it only then. Clang is cool with this, but GCC gets confused and
warns "‘ich’ may be used uninitialized". Ron Koenderink reports
Visual Studio 2019 even flags it as an error. Same for c_lload() and
c_tend().
Time to clean this up. Rearrange the code to avoid the warning and
also improve readability a bit.
Signed-off-by: Markus Armbruster <armbru@pond.sub.org>
A useless variable crept into commit 2fc9dfc52 "New
path_find_visualize(), to aid debugging" (v4.3.27). Delete it.
Signed-off-by: Markus Armbruster <armbru@pond.sub.org>
Commit 478566258 'New journal event "output"' (v4.3.27) claims "Output
events are *not* flushed to disk immediately." They are. Accident.
Implement the missing bit.
Signed-off-by: Markus Armbruster <armbru@pond.sub.org>
move_ground() has code to handle getsect() failure. It's dead,
because it assumes getsect() returns a negative value on failure. It
actually returns zero then. The mistake can be traced back all the
way back to BSD Empire 1.1. Fix it.
Signed-off-by: Markus Armbruster <armbru@pond.sub.org>
Command functions are traditionally named like the command shortened
to four characters. When this name collides with a keyword or library
function, we abbreviate more: brea(), rea(). A few are unabbreviated,
e.g. execute(). A few have different names, e.g. explain(), not
list().
Commit 23726b379 (v4.3.0) suppressed a GCC warning about carg()
colliding with its built-in function.
Ron Koenderink reported Microsoft Visual Studio 2019 fails to link:
"_carg already defined in ucrtd.lib(ucrtbased.dll)".
Time to clean this up: rename the functions to c_FOO(), where FOO is
the unabbreviated name of the command.
Signed-off-by: Markus Armbruster <armbru@pond.sub.org>
When the lot being bid for goes away and gets reused while the player
is at the prompt for the destination sector, comm.com_amount gets
stale. We use it before we detect the change and fail the command
This can lead to a misleading ""You don't have that much to spend!"
error. Messed up when the code was fixed to deal with lot changes in
4.0.2.
Fix by checking for lot change earlier.
Signed-off-by: Markus Armbruster <armbru@pond.sub.org>
When the lot being bid for changes while the player is at the "How
much" prompt, we report "Commodity #%d has changed!", and continue
with the changed lot.
If continuing is okay, we should keep quiet. We did that until commit
40b11c098 "Fix buy not to wipe out concurrent updates", v4.3.27. Okay
when only the lot's price changed.
However, the lot could have gone away, or even be reused for something
else. Failing the command seems safest for the player, so do that.
It's how we use the check_FOO_ok() elsewhere.
Signed-off-by: Markus Armbruster <armbru@pond.sub.org>
Engineers can work even when loaded on a ship or land unit. They
happily raise sea sector efficiency. That's just wrong. It's
questionable even on land, because unloading need not be possible.
Has been that way since the command was added in Empire 2.
Add the missing check.
Signed-off-by: Markus Armbruster <armbru@pond.sub.org>
The work required for building sea sectors is zero in sect.config.
When a deity runs neweff or production on a sea sector, e.g. with
"neweff *", buildeff() divides by zero. Same when a player or deity
runs work with an engineer in a sea sector. Broken in commit
2ffd7b948 "config: Make work to build sectors configurable", v4.4.0
Fix buildeff() to avoid the division. Change the required work to 100
in sect.config for good measure.
Cover deity use of neweff and production in tests/update.
Signed-off-by: Markus Armbruster <armbru@pond.sub.org>
Each point of gold resource is worth 5d. Except for mountains, where
it's just 3.75d. This is because a mountain's process efficiency is
only 75%. Has been that way since Empire 3 made mountains mine gold.
This is actually a needless complication: a sector with 75% process
efficiency produces just like one with 100% process efficiency and 75%
of the resource.
Increase mountain process efficiency to 100%. Deities may want to
compensate by adjusting mountains' gold resources.
Signed-off-by: Markus Armbruster <armbru@pond.sub.org>
The work required for a product is traditionally the amount of raw
materials, plus 1 for resource usage, or 1 if using neither. Make it
independently configurable instead, via new product selector bwork,
backed by new struct pchrstr member p_bwork. Keep the required work
exactly the same in the default configuration.
Clients that compute work from materials need to be updated. Easy,
since build work is now exposed in xdump.
Signed-off-by: Markus Armbruster <armbru@pond.sub.org>
External use of prod_materials_cost(), prod_resource_limit() went away
in commit 4a714a37d "production: Use update code instead of
duplicating it", v4.4.0.
Signed-off-by: Markus Armbruster <armbru@pond.sub.org>
We reject satellites, ABMs, anti-ship missiles, and SAMs. That's
enumerating badness. More robust replacement: accept only bomber,
tactical, cargo, except for anti-ship missiles.
Throw in PLN_LAUNCHED sanity checking while there.
Signed-off-by: Markus Armbruster <armbru@pond.sub.org>
Any plane may have capabilities VTOL, helo, light.
Capability missile requires VTOL.
Anti-ballistic missiles have capabilities missile, SDI.
Anti-satellite missiles have capabilities missile, satellite.
Surface-to-air missiles have capabilities missile, intercept.
Anti-ship missiles have capabilities missile, marine, and may have
tactical.
Surface-to-surface missiles have capability missile, and may have
tactical.
Satellites have capability satellite, and may have spy, image.
Ordinary planes may have capabilities bomber, tactical, intercept,
cargo, spy, image, ASW, para, escort, mine, sweep. Capability para
requires cargo; see para().
Only "missile requires VTOL" is enforced. Enforce the rest.
Excluding P_O when asking for P_N is now redundant. Drop that from
msl_abm_intercept().
Signed-off-by: Markus Armbruster <armbru@pond.sub.org>
Their impact on the target does not depend on shell load (it sometimes
did for a-sats until commit cf960a573 "Make anti-sat launch consistent
with interception", v4.3.23). The shell use is logistical busy-work,
and economically irrelevant. Remove it.
Signed-off-by: Markus Armbruster <armbru@pond.sub.org>
The asat's impact on the target does not depend on its shell load (it
sometimes did until commit cf960a573 "Make anti-sat launch consistent
with interception", v4.3.23). The shell use is logistical busy-work,
and economically irrelevant. Remove it.
Signed-off-by: Markus Armbruster <armbru@pond.sub.org>
Marine missiles can't actually support, see perform_mission(). Make
the mission command reject them.
Signed-off-by: Markus Armbruster <armbru@pond.sub.org>
The mission code doesn't treat SAMs specially: they take off, fly out,
maybe fight, fly home, and land. Landing triggers the oops in
pln_put1().
Letting SAMs escort makes no sense. Fix the mission command to reject
them.
Signed-off-by: Markus Armbruster <armbru@pond.sub.org>
Unused since commit beedf8dce "retreat: Rewrite automatic retreat code
to fix its many bugs", v4.3.33.
Signed-off-by: Markus Armbruster <armbru@pond.sub.org>
Stale since commit 6ac9ad66e (v4.3.20) silently dropped dead code for
supply of military. Dead since commit 689f435af (v4.2.14) dropped
option GRAB_THINGS.
Signed-off-by: Markus Armbruster <armbru@pond.sub.org>
get_dlist() collects defending land units in a list, and resupplies
them. Bug: it uses a local copy instead of the one in the list. When
att_fight() writes back the list, the commodities supplied get wiped
out, triggering a seqno oops. Broken in commit 62b9399cd "subs:
Factor lnd_insque() out of lnd_sel(), ask_olist(), ...", v4.3.33.
Signed-off-by: Markus Armbruster <armbru@pond.sub.org>
Commit 555de3100 (v4.3.0) added these macros so xdump tables loan and
treaty can share an agreement_statuses table. Treaties are gone since
commit a109de948 (v4.3.33). Drop the macros.
Signed-off-by: Markus Armbruster <armbru@pond.sub.org>
C99 requires at least one argument for the "..." in a variadic macro.
GCC and Clang don't care, but warn with -pedantic. Solaris cc warns.
The warning is easy to avoid, so do it.
Signed-off-by: Markus Armbruster <armbru@pond.sub.org>
plane damage() prints @noisy with snprintf() even when it's null. It
doesn't actually use the output then. Some systems (GNU, Windows)
deal gracefully with printing null strings, others crash. @noisy is
null when bombers or missiles miss and do collateral damage. Affects
bomb, launch, and interdiction missions. Broken in commit 820d755e5
"subs: Change pln_damage()'s parameter noisy to string prefix",
v4.3.33.
Fix by guarding the snprintf().
Signed-off-by: Markus Armbruster <armbru@pond.sub.org>
We require POSIX.1-2001. Some systems provide it only with feature
test macro _POSIX_C_SOURCE defined to 200112L. Since we don't define
it, the build fails there. Observed on Solaris 10.
We actually require the XSI extension. The GNU C Library provides it
by default. With _POSIX_C_SOURCE 200112L, however, you have to define
feature test macro _XOPEN_SOURCE to get it. But then _POSIX_C_SOURCE
is redundant.
Make configure put #define _XOPEN_SOURCE 600 into config.h. Drop the
two existing #define _XOPEN_SOURCE 500 in .c files.
Now Solaris cc refuses to play ball unless switched to C99. Replace
AC_PROG_CC by AC_PROG_CC_STDC to mollify it.
Unfortunately, use of _XOPEN_SOURCE exposes bugs in AIX libc and old
versions of GNU libc:
* AIX defines struct in6_addr's member s6_addr as a macro expanding
into the actual member. Without _ALL_SOURCE (the default), the
expansion is wrong and doesn't compile. Observed with AIX V7.2.
* GNU lib's IN6_IS_ADDR_V4MAPPED() is unusable without
_DEFAULT_SOURCE (default) or _GNU_SOURCE. Observed with Debian 8.
Tracked at <https://sourceware.org/bugzilla/show_bug.cgi?id=16421>,
fixed in version 2.25.
Affects just sockaddr_ntop()'s special case from commit 372cdb136 "Use
IPv4 format for IPv4-mapped addresses", v4.3.31. Disable the special
case and use IPv6 format on such systems. This is a very minor
usability regression. Could be avoided, I guess, but it's not worth
the trouble.
Signed-off-by: Markus Armbruster <armbru@pond.sub.org>
getpass() is traditional Unix, but has been withdrawn from POSIX. We
still use it when it's available, and fall back to portable code only
when it's not.
The portable code behaves differently: it reads stdin instead of
/dev/tty, and in noncanonical mode.
Simplify things: always use the replacement.
Signed-off-by: Markus Armbruster <armbru@pond.sub.org>
getpass() is traditional Unix, but has been withdrawn from POSIX. We
provide a replacement in case it's missing. The one for Windows
suppresses echo, like getpass() does. Implement that for POSIX. The
other differences to getpass() remain.
Signed-off-by: Markus Armbruster <armbru@pond.sub.org>
I'm going to drop use of getpass(). As a first step, weaken the bond
by hiding it in a separate function.
Signed-off-by: Markus Armbruster <armbru@pond.sub.org>
lwpSigWait() was designed to resemble sigwait(). It doesn't anymore.
Drop the awkward argument, and use the return value instead.
Signed-off-by: Markus Armbruster <armbru@pond.sub.org>
LWP's use of sigset_t is problematic.
To iterate over a sigset_t, it uses NSIG, which is not portable: BSD
and System V provide it, but it's not POSIX.
To record signals caught, it updates a sigset_t variable from a signal
handler. The variable isn't volatile, because we'd have to cast away
volatile for sigaddset().
Replace sigset_t by an array of signal numbers terminated with 0.
Since lwpInitSigWait() needs to store the signal set for
lwpCatchAwaitedSig() anyway, there is no need to pass it to
lwpSigWait(). Drop its parameter.
Signed-off-by: Markus Armbruster <armbru@pond.sub.org>
lwpSigWait() clears LwpSigCheck even when signals remain in
LwpSigCaught. The next empth_wait_for_signal() will then wait until
another one gets caught. Broken in commit fe2de3d74, v4.3.10.
Fix by clearing it only when LwpSigCaught is empty.
Signed-off-by: Markus Armbruster <armbru@pond.sub.org>
sigismember() fails when passed an invalid or unsupported signal
number. lwpInitSigWait() and lwpGetSig() treat sigismember() failure
like "is a member". lwpInitSigWait() will then sigaction()
unsuccessfully. Harmless. lwpGetSig() returns the bad signal number
when it's greater than any caught signal's number. The bad signal
number then gets returned to main(), which shuts down the server.
Fix by treating failure like "is not a member".
Signed-off-by: Markus Armbruster <armbru@pond.sub.org>
lwpCatchAwaitedSig() is not reentrant. lwpInitSigWait() attempts to
protect it by setting an appropriate signal mask, but screws up. This
could conceivably lose signals. Messed up when it got added in commit
7183516d9, v4.3.6. Fix it.
Signed-off-by: Markus Armbruster <armbru@pond.sub.org>
lwpSigWait()'s contract specifies failure, which means oopsing is
wrong. Harmless, as its only caller empth_wait_for_signal() oopses on
failure. Drop it anyway.
Signed-off-by: Markus Armbruster <armbru@pond.sub.org>
We get strncasecmp() from <string.h>. This is a BSDism; POSIX
provides it in <strings.h>. Missed in commit 8fdd0259f2, v4.2.19.
Signed-off-by: Markus Armbruster <armbru@pond.sub.org>
Macro SHP_TYPE_MAX is the largest possible ship type number. It is
only used to size mchr[], and we need + 2 there. Replace by MCHR_SZ
for simplicity.
Same for LND_TYPE_MAX, PLN_TYPE_MAX, P_MAX, and SCT_TYPE_MAX: replace
by LCHR_SZ, PLCHR_SZ, PCHR_SZ, and DCHR_SZ.
Same for N_MAXNUKE, except that one is more than the largest type
number. Replace by NCHR_SZ.
For consistency, define ICHR_SZ and INTRCHR_SZ for sizing ichr[] and
intrchr_sz[].
Signed-off-by: Markus Armbruster <armbru@pond.sub.org>
