LDMud 3.3.719

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LDMud

LDMud 3.3

LDMud 3.3.719

Version: 3.3.719
Release Date: %date%

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Summary of Changes

Fixed Crashes:
- gmtime(), localtime(), ctime() and strftime() could crash the driver on platforms where time_t is 64 bits long and users supply huge values as time stamp (>2^55) due to unchecked results from libc functions (Bug #587).
- Fixed a bug in esbrk() during memory allocation, where SINT (sizeof(word_t)) was not taken into account in the calculation of a block size, leading to crashes afterwards. (#611)
New Efuns:
- configure_interactive():To set options for interactives.
- configure_driver():To set settings/options for the driver itself.
Changed Efuns:
- idna_stringprep():fixed the evaluation of the arguments and removed a memory leak (#498).
- map():it's now possible to specify a mapping column when mapping through mappings (#367)
- tls_check_certificate(), tls_refresh_certs():Now available if GnuTLS is supported.
- hash() and hmac() is now always available und is able to use OpenSSL, libgcrypt or internal MD5 and SHA1 routines (builtin routines for hash() only). hash() costs 10 ticks per iteration.
- md5() and sha1() are obsoleted by hash().
- lambda() now supports bound and unbound lambdas as the first element in an array of a lambda expression.
- xml_generate(), xml_parse():Also available using libxml2.
- cat():marked as deprecated (#637)
- Runtime
- The --max-malloced memory limit was renamed to --hard-malloc-limit.
- Introduced new --soft-malloc-limit in addition to the hard one.
- When exceeding the soft memory limit, the function low_memory() is called in the mudlib master with details about the kind of low memory situation. This check is done during the backend cycle and not at 'real-time'.
- Made the maximum length of commands configurable at compile-time (MAX_COMMAND_LENGTH, --max-command-length)
- The driver hook H_MSG_DISCARDED can be used to specify the messages given to players when their messages were discarded.
- The soft and hard memory limits can now be configured at runtime (configure_driver()).
- Language
- Added a permanent define __MAX_COMMAND_LENGTH__ for the maximum length of command.
- Added a permanent define __GCRYPT__ when libgcrypt support is available.
- Portability
- Savefiles are written in binary mode, if the host system supports any such notion (O_BINARY exists). Additionally, they are read as binary as well, if it is supported. (Note: POSIX conforming systems do not distinguish between 'text' and 'binary' modes, this is only relevant to Cygwin.)
- Fixed a major bug on 64 bit platforms, where floats with negative exponents were saved incorrectly leading to data corruption (#627).
- Removed the whole hosts/ directory because it wasn't maintained for a long time and most of the systems were anyway dead for a long time (#625). This removed --enable-use-system-crypt as well (#624).
- Removed checks and special code for OS2 and __EMX__.
- Removed checks and special code for MSDOS.
- Removed checks and special code for BeOS.
- Removed checks and special code for AMIGA.
- Removed checks and work-arounds for very old gcc compilers (2.x, <3.2).
- Removed checks and special code for SunOS4
- Removed checks and special code for Ultrix.
- Removed MSDOS filesystem semantics (Checks for MSDOS_FS and special behaviour (e.g. \\ as path separator).
- Support for using mmap() to get memory from the system (slaballoc), because brk()/sbrk() are more or less deprecated and not supported by some systems (e.g. Darwin/MacOS). (#640)
- Support for using mmap() to get memory from the system (smalloc). (#640)
- Other
- Generalized the write buffer for non-threaded use and renamed the configuration option '--with-pthreads-write-max-size' to '--with-write-buffer-max-size'.
- Removed background threads that sent the data to the network and with it the '--enable-use-pthreads' configuration option.
- The commandline options '--access-file' and '--access-log' specify the access permissions and log file, activating or deactivating access control and log. The old configure options '--enable-access-control', '--with-access-file', '--with-access-log' and their config.h symbols ACCESS_FILE and ACCESS_LOG just give the default values.
- The default path of TLS certificates are now configurable during compile time (--with-tls-keyfile, --with-tls-certfile, --with-tls-trustfile, --with-tls-trustdirectory, --with-tls-crlfile, --with-tls-crldirectory), these TLS features can also be deactivated by giving "no" during compile time or "none" as a runtime parameter.
- Ed sessions are removed when an object becomes non-interactive.
- Multiple ed sessions per interactive are allowed.
- Check the compiler for support of -fwrapv and enable if supported. Enables a fully defined overflow/wrap behaviour of signed integers (#635)).

Changelog

30-May-2009 (LDMud Team) 3.3.719

Created snapshot.

29-May-2009 (Gnomi)

(call_out.c) Preserve the order of call_out()s.
(mudlib/deprecated/hash.c) Added sefuns md5() and sha1().
(configure) Added a bunch of quotation marks.

28-May-2009 (Zesstra)

Added sefun cat(), updated documentation of cat(). To reduce the workload of our users we supply implementations of deprecated and removed efuns. This time: the deprecated efun cat(). (mudlib/deprecated/*)
Removed a configure check for ancient gcc on AIX.
Added checks to configure for the volatile keyword and VLAs.
Check the compiler for support of -fwrapv and enable if supported (enables a fully defined overflow/wrap behaviour of signed integers (#635).
Support for using mmap() to get memory from the system (slaballoc): sbrk() and brk() are obsoleted and some systems (like Darwin) don't have a working implementation anymore. If sbrk/brk() are not usable, but mmap() is available, use mmap() for mapping anonymous memory which we then use. If mmap() is not available, use the old fallback (system malloc()). Changed some precompiler checks for SBRK_OK, which should be REPLACE_MALLOC. (#640) (slaballoc.c, xalloc.c, configure.in)
Support for using mmap() to get memory from the system (smalloc). (#640) (smalloc.c)
Removed amalloc/afree(), MALLOC_ALIGN and MEM_ALIGN. Our amalloc() had errors and never worked as intended. As the driver does not need more alignment than guaranteed by the allocators, amalloc() was removed (see commit log for details). (xalloc.c, slabmalloc.c, smalloc.c, sysmalloc.c, xptmalloc.c)

27-May-2009 (Gnomi)

(ed.c, comm.c) Put ed sessions into the input_to list of interactive objects, so now they have a common noecho and prompt handling. (Bug #522)
(call_out.c, backend.c) Corrected the timing of call_outs from inside a heartbeat. (Bug #375)
(comm.c) Allow sending \0 with binary_message(). (Bug #71)
(comm.c) Enable IAC quoting by default, allow enabling '\0' and disabling '\n' in connection charsets.

26-May-2009 (Fuchur)

(ed.c) Fix bogus reference increment in clear_ed_buffer_refs()

26-May-2009 (Zesstra)

(func_spec) Marked efun cat() as deprecated. (#637)

19-May-2009 (Gnomi)

(prolang.y, interpret.c) Corrected the handling of implicit context variables in nested inline closures and allowed the initializers of explicit context variables to reference other explicit context variables. (Bug #631)
(main.c, comm.c) Set the close-on-exec-flag on open file descriptors, so they are not passed to erq. (Bug #629)
(pkg-tls.h, pkg-openssl.c, pkg-gnutls.c, main.c, configure) Allow TLS to be deactivated per default or command line. (Bug #479)

18-May-2009 (Gnomi)

(pkg-xml2.c, arraylist.c, configure) Added support for XML parsing using libxml2. (Bug #538, thanks, Bardioc!)
(interpret.c) Ignore any arguments passed to a variable closure instead of throwing an error. (Bug #612)

12-May-2009 (Fuchur)

(object.c) compile fix for !USE_NEW_INLINES
(prolang.y) forbid accessing closure arguments from within the closure's context.
(prolang.y) Fix infinite loop when redefining a closure argument in its closure's context.

11-May-2009 (Gnomi)

(sprintf.c) Don't rely on overflow, as gcc optimizes away overflow checks.

10-May-2009 (Zesstra)

(smalloc.c, slaballoc.) Replaced SINT by GRANULARITY The define SINT was ill-named. All occurences were renamed to GRANULARITY which describes the semantics of the define much better and it is now defined as being sizeof(word_t). Additionally, MEM_ALIGN is now defined as being the same as GRANULARITY.
(xalloc.c) Replaced define by enum. The defines for the header fields of memory blocks were replaced by an enum. Additionally a comment about word_t is added.
(xalloc.c) Fixed syntactial errors in pre-compiler statements. Because MEM_ALIGN is now a sizeof() expression, it can't be used in conditional compilation. Replaced them by real if() (which are eliminated by the compiler because their expression is constant).
(object.c) Fixed buffer overflow in save_svalue() (#634) save_svalue() used PRIx16 to print the exponent of a float. Unfortunately, on some systems PRIx16 is %x, although int16_t is a short. This causes a signed conversion (which keeps the value) and then 0xffffffff is written. Even if the buffer is large enough, upon restore with SCNx16 (%hx) a wrong value would be restored. *args* Additionally all sprintf(), which write into number_buffer were replaced by snprintf().

06-May-2009 (Zesstra)

(hosts/) The hosts/ directory was removed. Removed the whole hosts/ directory because it wasn't maintained for a long time and most of the systems were anyway dead for a long time (#625). This removed --enable-use-system-crypt as well (#624).
Removed checks and special code for OS2 and __EMX__.
Removed check for MSDOS.
Removed checks and special code for __BEOS__.
Removed checks and special code for AMIGA.
Removed checks and work-arounds for very old gcc compilers (2.x, <3.2).
Removed checks and special code for SunOS4 (The last release of SunOS4 was in 1994.)
Removed checks and special code for Ultrix.
Removed MSDOS filesystem semantics (Checks for MSDOS_FS and special behaviour (e.g. \\ as path separator).
(prolang.y) Another fix in insert_pop_value(). In case of F_NUMBER was the operation itself not taken into account. Replaced hard-coded numbers by the appropriate sizeof() in all other cases as well.

05-May-2009 (Zesstra)

(prolang.y) Fix inconsistent F_NUMBER generation (#628). The compiler generates F_NUMBER at more than one places. ins_number() only writes a int32 into the bytecode, all the other places write a p_int, which interpret.c expects. The patch adds ins_p_int(), upd_p_int() and read_p_int(). ins_number() now calls ins_p_int() upon generating the F_NUMBER instruction. Additionally upon storing a number (L_NUMBER) and in the unary '-' upd_p_int() is called instead of a direct memcpy(). (memcpy() is a bit faster, but I think it is much more risky to forget a place to change...)
(prolang.y) Fixed insert_pop_value(). insert_pop_value() removes the last value from the stack. If possible, it patches the code to prevent that value from being computed at all (by removing the last expression). Unfortunately the function assumed that all operations have no data following in the bytecode. This patches changes it and enabled optimization/removal of operations with data.

05-May-2009 (Gnomi)

(lex.c, efuns.c) Improved numeric overflow detection. (Bug #630)
(pkg-gnutls.c) Don't abort on EINTR or EWOULDBLOCK.

04-May-2009 (Zesstra)

(efuns.c, efuns.h, func_spec, string_spec, doc/, mudlib/) Added new efun: configure_driver() and documentation. configure_driver() will configure variuous aspects of the driver at run-time. The first settings available is now the soft and hard memory limits.
(smalloc.c, slaballoc.c, sysmalloc.c, xptmalloc.c) Added soft and hard memory limits in output of then 'malloc' command.
(object.c) Fix for float corruption in restore_svalue(). We use 32 bit mantissas and 16 bit exponents for our floats. Ensure to write and read fixed-width types in save_svalue() and restore_svalue(). Fixes #627, where restore_svalue() interpreted the 16bit integer for the exponent as 32bit integer, resulting in data corruption if the exponent was negative.
(svalue.h) The defines READ_DOUBLE, SPLIT_DOUBLe and STORE_DOUBLE were exchanged by static inline functions. STORE_DOUBLE_USED is not needed anymore and defined empty. Additionally, SPLIT_DOUBLE returns now the mantissa as p_int instead of long.
(interpret.c) The compiler stores float literals with PUT_INT32 and PUT_SHORT. Reading them from the bytecode was done by memcpy(). Some conditional compilation was required to read the correct datatypes. This patch implements an old TODO and makes F_FLOAT use the LOAD_INT32 and LOAD_SHORT macros from bytecode.h.

19-Apr-2009 (Gnomi)

(pkg-tls.c) Set this_interactive() when executing the callback after handshaking and print the prompt afterwards, so it looks the same as a normal logon() call.
(closure.c, interpret.c) New opcodes F_CALL_CLOSURE and F_POP_SECOND for calling more complicated closures like lambda, inherited lfun and context closures from within a lambda closure. (Bug #613)

16-Apr-2009 (Gnomi)

(comm.c, interpret.c, doc/) Made the maximum write buffer size configurable per interactive via a new efun configure_interactive. New optional driver hook H_MSG_DISCARDED to inform the master about discarded messages and send a custom error message to the interactive. Already compressed packages wont be discarded (Bug #297).

15-Apr-2009 (Gnomi)

(pkg-gnutls.c) Support for older versions of libgnutls.
(port.h, object.c) Savefiles are written in binary mode, if the host system supports any such notion (O_BINARY exists). Additionally, they are read as binary as well, if it is supported. (Note: POSIX conforming systems do not distinguish between 'text' and 'binary' modes, this is only relevant to Cygwin.)

14-Apr-2009 (Gnomi)

(doc/driver/predefined) Corrected description of __PATH__(n).
(mk-patchlevel.h) Call version.sh in the current directory.
(interpret.c) The size of big switch structures was miscalculated on LP64 platforms. (t-0000622.c)

12-Apr-2009 (Gnomi)

(efuns.c, pkg-openssl.c, pkg-gcrypt.c) Moved hash() and hmac() from pkg-openssl.c to efuns.c and implemented them also using libgcrypt or the internal MD5 and SHA1 routines (bug #52).
(efuns.c) fixed a memory leak in hash() and hmac().
(efuns.c) hash() now costs 10 ticks per iteration.
(efuns.c) sha1() calculated wrong hash values with multiple interations.
(doc/efun) Marked md5() and sha1() as obsoleted by hash().
(pkg-openssl.c) Don't set a just queried client CA again. (Bug #583)

10-Apr-2009 (Gnomi)

(pkg-gnutls.c) Implemented tls_refresh_certs and tls_check_certificate with GnuTLS.

09-Apr-2009 (Gnomi)

(interpret.c) Wrongly calculated the jump offset of the default label in big switches due to a sign error (maybe #622).
(exec.h) Another value for NAME_CROSS_DEFINED so that it doesn't conflict with FUNSTART_MASK (large programs could hit that bit).

08-Apr-2009 (Gnomi)

(pkg-tls.c) Set command_giver when executing the callback after handshaking (Bug #499).

07-Apr-2009 (Gnomi)

(pkg-tls.h) Corrected the definition of tls_check_certificate.
(pkg-gnutls.h, pkg-openssl.h) Forgot an include.
(main.c) Removed a superfluous pointer dereference. 21-Mar 2009 (Gnomi)
(pkg-tls.c, pkg-openssl.c, pkg-gnutls.c) Separated code for GnuTLS and OpenSSL.

15-Mar-2009 (Fuchur)

(test/inc/deep_eq.inc) Implement deep equality for the testsuite.
(test/t-efuns.c) Add a few tests for map().
(array.c, strfuns.c, structs.c, efuns.c, doc/efun[.de]/map[.de]) Implement map(*, mapping, idx). (#367) 12-Mar 2009 (Zesstra)
(slaballoc.c, smalloc.c) Fixed a bug in esbrk() during memory allocation, where SINT (sizeof(word_t)) was not taken into account in the calculation of a block size, leading to crashes afterwards. (#611)
(efuns.c) Fixed an off-by-one buffer overflow in v_sha1(). Actually removed the \0 written after the buffer, because it was not needed. 10-Mar 2009 (Zesstra)
(pkg-idna.c) Fixed the evaluation of the arguments of f_idna_stringprop() and removed a memory leak, because the argument string was not free'd. Additionally avoided to put a return value on the stack in case of an error (#498)

03-Mar-2009 (Zesstra)

(actions.c, configure.in, config.h.in, lex.c) Made the maximum length of commands configurable. COMMAND_FOR_OBJECT_BUFSIZE was renamed to MAX_COMMAND_LENGTH and made configurable at compile time via the --max-command-length, defaulting to 1000. Added a permanent define __MAX_COMMAND_LENGTH__

28-Feb-2009 (Zesstra)

(xalloc.c|h, smalloc.c, main.c, lex.c, slaballoc.c, backend.c, string_spec, mudlib/sys/rtlimits.h, src/settings*, doc/master/) Renamed --max-malloced to --hard-malloc-limit and MAX_MALLOCED to HARD_MALLOC_LIMIT_DEFAULT and changed the mud configurations. Introduced a --soft-malloc-limit/SOFT_MALLOC_LIMIT_DEFAULT Added set_* and get_memory_limit() and related constants for managing the memory limits Added check_for_soft_malloc_limit() to check the soft memory limit Added notify_lowmemory_condition() to call low_memory() in the mudlib master Added calls to notify_lowmemory_condition() and check_for_soft_malloc_limit() in the ba ckend cycle Added documentation for new memory limit and low_memory().

27-Feb-2009 (Fuchur)

(settings/default) Sync options with configure.
(autoconf/configure.in) Don't replace unspecified defaults by 'no' anymore. Fix some quoting issues. Add help messages for all custom options. Remove a few unused options.

15-Feb-2009 (Zesstra)

(port.c) Check results of gmtime() and localtime() and return NULL, if NULL is returned.
(efuns.c) Check results of gmtime(), localtime(), time_fstring() and utime_string() for being NULL and raise a runtime error. (#587)
(test/inc/testarry.inc, test/t-mantis.c) Added tests for the efuns affected by bug #587. Added an test flag TF_DONTCHECKERROR for tests which must not crash the driver but may cause a runtime error or not.

31-Jan-2009 (Fuchur)

(test/run.sh, test/t-0000604.sh) Add Test for #604

31-Jan-2009 (Zesstra)

Fixed german manpage for unique_array() which contained german and english.

30-Jan-2009 (Fuchur)

(main.c) Fix bug building erq_args, which could cause memory corruption. (#604)

29-Jan-2009 (Gnomi)

(access_check.c, comm.c, main.c) Made access control a runtime option.

28-Jan-2009 (Gnomi)

(backend.c) !-escaped commands are treated specially even if the player object doesn't have an environment.
(comm.c) Correctly detect if input_to() was called more than once in the same execution thread (Bug #535).

27-Jan-2009 (Gnomi)

(xalloc.c) realloc() should also consider the xalloc overhead, when assessing the available space.
(main.c) Corrected --longhelp output of TLS options.
(comm.c, configure) Removed support for write threads.

18-Jan-2009 (Zesstra)

(pkg-mysql.c) Fixed corrupted results of db_conv_string(). (#602).

17-Jan-2009 (Zesstra)

(efuns.c) Relaxed syntax check in v_trim() to allow a 0 as ch for trimming "\0" (#473)

17-Jan-2009 (Fuchur)

(efuns.c, func_spec, mudlib/sys/debug_info.h, doc/efun/debug_info, doc/efun.de/debug_info.de) use debug_info instead of new get_eval_number() efun.
(efuns.c, func_spec, interpret.c, interpret.h, doc/efuns/get_eval_number, doc/efuns.de/get_eval_number.de) add get_eval_number efun.
(backend.c, comm.c, interpret.c, object.c) call mark_(start|end)_evaluation() in various places (#476)
(prolang.y) check return value of verify_declared()
fixes a crash in t-language

17-Jan-2009 (Gnomi)

(object.c) Save_object without a filename removed one too many elements from the stack. (Bug #595)

16-Jan-2009 (Zesstra)

(config.h.in, lex.c) Enforce the possible value range for ITABLE_SIZE (256
SHRT_MAX/32768). Fixes issues of not finding identifiers in the table if the table is to large. (#558) Updated documentation in config.h.in to reflect this. Corrected the manpages for read_file(). (#592)

14-Jan-2009 (Gnomi)

(comm.c, pkg-mccp.c, configure) Use of write buffers without the need for threads.
(object.c) Made restore_value reentrant. (Bug #548)
(prolang.y) Removed useless code.

14-Jan-2009 (Zesstra)

(doc/driver/limitations) Started to assemble a list of non-configurable limits
to be extended...
(exec.h, object.c, closure.c, interpret.c) Changed some code defines from exec.h to static functions and constants to an enum. Introducing a properly typed CROSSDEF_NAME_OFFSET() solves crash on LP64 platforms in functionlist(). (#559) Renamed SEARCH_FUNCTION_INHERIT to search_function_inherit and return the pointer to the inherit structure.
(smalloc.c) Fixed some warnings about wrong format specifiers reported by Bardioc.

13-Jan-2009 (Zesstra)

(simulate.c) Reallowed empty object names (/.c) (#525)

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LDMud

LDMud 3.3

LDMud 3.3.719

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Last update: Sat, 06 Jun 2009 12:19:00 -0600