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Seed7 release 2026-07-11

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@ThomasMertes ThomasMertes released this 11 Jul 21:07
Seed7_release_2026-07-11
1a7f074

A new version of the extensible programming language Seed7, has been released.
See: http://seed7.net

Changelog:

  • In encoding.s7i Base64Url encoding and decoding has been added. Many thanks to Zykaris for providing the functions toBase64Url() and fromBase64Url(). As suggested by Zykaris the functions toBase64Mime() and toBase64Pem() have been added as well.
  • In sql_post.c support for the money type has been added. Many thanks to Zyokatsu for sending a pull request.
  • In sql_post.c the implicitCommit mechanism has been deactivated. Thanks to Zykaris for pointing out problems with the implicit commit mechanism. Thanks to Johannes Gritsch for his advice that the implicit commit mechanism should not be used.
  • In sqllib.c the function sqlSetAutoCommit() has been fixed to use argument 2 instead of non-existent argument 3. Many thanks to Zyokatsu for pointing out a problem with setAutoCommit().
  • In osfiles.s7i the function makeParentDirs() has been improved to allow symbolic links to directories. Many thanks to Zykaris for pointing out that makeParentDirs() didn't follow symbolic links.
  • Code has been moved from gethttp.s7i to the new library http_request.s7i. Basic and Bearer Authentication has been added and GET and POST have been unified. HTTP/S post functionality has been added as well. Many thanks to Zykaris for the pull request.
  • In http_request.s7i constants for HTTP status codes have been added. Many thanks to Barankegnu for providing the change.
  • A coercing of http request properties to lowercase has been added (header names are case insensitive). Expect-Header support has been added as well. Many thanks to Zykaris for providing these changes.
  • In scanfile.s7i and scanstri.s7i the function getXmlTagHeadOrContent() has been improved to return <? as symbol. Many thanks to Zykaris for pointing out that <? was not processed correctly.
  • In tls.s7i the function negotiateSecurityParameters() has been improved to send an empty Certificate as answer to a CertificateRequest. Many thanks to Zykaris for pointing out that openssl complained about an "Unexpected Message".
  • In tls.s7i support for secure renegotiation has been added. Many thanks to Zykaris for pointing out that curl complained about a "handshake failure".
  • In the FAQ explanations about references to struct elements and about variables refering to the same object have been added. The answer about exceptions has been improved.
  • The operating system DOS is supported (with DJGPP) again. The tests have been done with Dosemu and Dosbox.
  • Interpreter and compiler have been refactored. Now the type ACTION uses the category ACTENTRYOBJECT instead of ACTOBJECT. An ACTENTRYOBJECT value points to an actEntryRecord (ACTOBJECT values are function pointers). New primitive actions for ACTENTRYOBJECT have been introduced. They have names starting with ACE_. Now expressions like action "INT_ADD" return an ACTENTRYOBJECT instead of an ACTOBJECT. Now an actEntryRecord contains more information. The category of the result, the number of parameters and the category of the parameters have been added to actEntryRecord.
  • ACTION functions for conversion, comparison and hash code have been added to seed7_05.s7i.
  • EXCEPTION in-parameters and the str() function for EXCEPTIONs have been added to seed7_05.s7i.
  • In seed7_05.s7i the definition of typeof() has been changed so that the argument is never executed.
  • In syntax.s7i the priority of the action operator has been changed.
  • The exception ASSERTION_ERROR and assert statements have been introduced. Tests for assert statements have been added to chkprc.sd7.
  • Interpreter and compiler have been improved to support functions which return functions.
  • Hash- and array-functions for compiled programs have been improved to use rtlValueUnion instead of genericType. This avoids casts from pointers to integers and back to pointers.
  • Support for writing types has been added.
  • In the library float.s7i function literal() has been improved to use the scientific notation if it is shorter.
  • The library cli_cmds.s7i (used by make7) has been improved:
    • The output redirection of commands has been improved to work correctly if the command is directly followed by >> or > .
    • Support for the commands "echo:", "echo/" and "echo" has been added.
    • The commands "echo.", "echo:", "echo/" and "echo" have been improved to support parameters.
    • The function oneShellCommand() has been addeed. If possible it executes external commands without shell. If no executable is found shell() and popen() are called with an array of parameters.
    • The function getCommandParameter() has been improved to work correctly if the given parameters are empty.
    • The functions getCommandParameter() and getDosCommandParameter() have been improved to escape a double quote if it is preceeded by an odd number of backslashes.
  • The library tar.s7i has been improved to assure that up to a size of 8 gigabytes the ustar and pax file size are identical.
  • The library zip.s7i has been improved to support ZIP files with the legacy signature PK00 as magic number.
  • The new library asn1oid.s7i has been added. Definitions of ASN.1 object identifiers have been moved from x509cert.s7i to asn1oid.s7i. The type algorithmIdentifierType and related functions have been moved from x509cert.s7i to asn1oid.s7i as well.
  • The new library signature.s7i has been added. The type rsaSignatureType and related functions have been moved from x509cert.s7i and tls.s7i to signature.s7i.
  • In x509cert.s7i the validity of stdCertificate has been extended to the end of 2029.
  • In charsets.s7i the function conv2unicodeByName() has been refactored to use a case-statement.
  • The new library bin16.s7i has been added. This library supports IEEE 754 16-bit half-precision floats.
  • The new library pcx.s7i has been added. This library supports the PCX image file format. PCX magic numbers have been added to magic.s7i and support for PCX has been added to imagefile.s7i.
  • The picture viewer pv7.sd7 has been improved to support PCX and a list of image parameters.
  • In bin32.s7i and bin64.s7i conversions from bin32 and bin64 to char have been added.
  • In lzw.s7i the performance of the LZW decompression has been improved by 0.9%.
  • The bmp.s7i library has been improved:
    • Support for the Huffman 1D compressed BMP format has been added.
    • Support for top-to-bottom bitmaps with 8 bits per pixel has been added.
    • Functions for line-wise processing of pixels have been added.
    • The pixel data of a BMP with 1, 2 and 4 bits per pixel is read with one gets().
    • An in-parameter is used for bmpHeader parameters in places where it does not change.
    • The calculation of colorEntrySize has been improved.
  • The libraries tga.s7i and pcx.s7i have been improved to use the in-var-parameter byteIndex instead of the in-parameter byteIndexStart.
  • The jpeg.s7i library has been improved:
    • The function showHeader(), which shows the header struct, has been added.
    • In getSymbol() the condition to recognize negative numbers has been changed.
  • The tiff.s7i library has been improved:
    • Support for tiled images has been added. This includes images with bitsPerSample mod 8 <> 0.
    • The processing of images has been improved to work linewise.
    • The processing of JPEG data has been improved.
    • Support for old style JPEG data has been added.
    • The strip and tile processing has been improved.
    • Support for the photometric interpretations CMYK and CMYKA has been added.
    • The TIFF compression 50013 (PIXTIFF DEFLATE) has been added as synonym of DEFLATE.
    • Support for fillOrder = 2 in combination with the pack-bits decompression has been added.
    • Definitions of many tags have been added.
    • In tagValueAsString() and tagValueAsArray() a possible garbage in higher or lower bits of a TIFF_FIELD_SHORT field is ignored.
    • Unused tile data is removed if bitsPerPixel >= 8 holds.
    • Support for 4 samples per pixel, if samples are not divisible by 8, has been added.
    • The differencing predictor has been improved to work with 16-bit samples.
    • A float predictor has been added.
    • Support for the float sample format has been added.
    • Support for floating point RGBA TIFF has been added.
    • Support for the photometric interpretation YCbCr with a vertical sub-sampling of 1 or 2 has been added.
    • Support for for the following planar TIFF images has been improved:
      • Planar images with CMYK photometric interpretation.
      • Tiled planar images.
      • Grayscale planar images.
      • Planar images with bitsPerSample mod 8 <> 0.
    • The function showHeader() has been improved.
  • The ccittfax.s7i library has been improved:
    • The function skipToStart() has been added.
    • The function skipEol() has been changed to search for a one bit.
    • The end-of-line bit patterns of white and black have been changed.
    • The functions getWhiteBits() and getBlackBits() have been changed to avoid that the end-of-line code (-1) is added.
  • In graph.s7i the functions compare() and hashCode() for pixel values have been added.
  • In encoding.s7i the performance of toUuencoded(), toBase64() and toBase64Url() has been improved by around 25%.
  • In encoding.s7i the performance of toAscii85(), fromUuencoded(), fromBase64Url() and fromBase64() has been improved by around 10%.
  • In bytedata.s7i the performance of hex2Bytes() has been improved by 2.4%
  • The libraries http_request.s7i and https_request.s7i have been improved:
    • The conversion to integer has been improved to work without exceptions and handlers.
    • Unused getHttp() and getHttps() functions have been removed.
    • openHttp() and openHttps() functions with location and request parameters have been refactored.
    • The functions http(GET, ...) and https(GET, ...) have been introduced.
  • The library http_response.s7i has been renamed to http_srv_resp.s7i.
  • In httpserv.s7i the type httpRequest to has been renamed to httpServerRequest.
  • In httpserv.s7i the function getHttpRequest() has been improved to check if the remaining buffer contains the rest of the content.
  • In html_ent.s7i support for hex encoded HTML entities has been added to decodeHtmlEntities().
  • In smtp.s7i in openSmtp() the STARTTLS command is considered if it is part of the response content.
  • The pointer types ptr and varptr have been removed from libraries and manual.
  • In objutl.c the function dump_temp_value() has been improved to call set_fail_flag(FALSE) only if necessary. This improves the Seed7 interpreter by 1% (measured with gcc and valgrind when pv7 is reading a PCX image).
  • In boolean.s7i support for the following boolean assignments has been added: &:= |:= ><:=
  • Tests for the new boolean assignments &:= |:= ><:= and for the ternary operator ( ? : ) have been added to chkbool.sd7.
  • The test suite has been improved to use the boolean &:= assignment.
  • The deprecated functions keypressed() and busy_getc() have been removed from keybd.s7i.
  • In process.s7i the function commandPath() has been improved to append EXECUTABLE_FILE_EXTENSION only if it is not already present.
  • In shell.s7i the functions popen() and popen8() have been refactored to be based on the new function popenClibFile(), which uses a parameter array instead of a parameter string.
  • In shell.s7i the functions shell() and shellCmd() have been refactored to be based on the action CMD_SHELL_EXECUTE, which uses a parameter array instead of a parameter string.
  • The deprecated function cmd_sh() has been removed from shell.s7i.
  • The library bitdata.s7i has been improved:
    • The function reverseByteBits() has been added.
    • The operator &:= for LSB and MSB out bit streams has been added.
    • In msbOutBitStream and its functions the variable bitSize has been renamed to bitPos.
    • The deprecated types lsbBitStream and msbBitStream as well as the deprecated functions openLsbBitStream() and openMsbBitStream() have been removed.
    • The deprecated functions putBitLsb(), putBitsLsb(), putBitMsb() and putBitsMsb() with a string or file as parameter have been removed.
    • The deprecated functions getBitLsb(), getBitsLsb(), getBitMsb() and getBitsMsb() with a file as parameter have been removed.
  • In iobuffer.s7i the support for the undocumented function setbuf() has been removed.
  • In null_file.s7i the = and <> comparisons have been removed.
  • In category.s7i, data.h and datautl.c the categories ACTENTRYOBJECT, BOOLOBJECT, ENUMOBJECT and VOIDOBJECT have been added. The category FILEDESOBJECT has been removed.
  • In sql_base.s7i support for the function dbCategory() has been added.
  • In db_prop.s7i properties of Firebird databases have been added.
  • In ref_list.s7i definitions of the following for-loops have been added:
    • For-loops over the elements and keys (indices) of a ref_list.
    • For-loops over the keys (indices) of a ref_list.
  • The test program chkdecl.sd7, which checks declarations, has been added.
  • The test program chkarr.sd7 has been improved:
    • Tests for fixed size arrays have been added.
    • Tests for 'array bitset', 'array file' and 'array bstring' have been added.
    • Tests for getting an element from a temporary array have been added.
    • Index tests for empty base arrays have been added.
    • Tests for 'ARRAY [ START .. STOP ]' with index out of range have been activated.
  • In chkarr.sd7, chkbig.sd7, chkbin.sd7, chkenum.sd7, chkflt.sd7, chkint.sd7, chkjson.sd7, chkset.sd7, chkstr.sd7 and chktime.sd7 definitions of raisesRangeError() have been refactored to use a template.
  • In chkarr.sd7, chkbig.sd7, chkchr.sd7, chkint.sd7, chkovf.sd7, chkset.sd7 and chkstr.sd7 check functions have been split into parts.
  • In chkarr.sd7 and chkidx.sd7 definitions of raisesIndexError() have been refactored to use a template.
  • In chkint.sd7 and chkbig.sd7 definitions of raisesNumericError() have been refactored to use a template.
  • In chkint.sd7 and chkovf.sd7 tests for integer left shift by a sum have been added.
  • In chkint.sd7 tests for the >>:= and <<:= operators have been refactored.
  • In chkbin.sd7 tests for the conversion to and from IEEE 16-bit half precision floats have been added.
  • In chkbin.sd7 tests for the radix and RADIX operators have been added.
  • In chkstr.sd7 tests for string append and prepend have been added.
  • In chkstr.sd7 tests for string assignment have been added.
  • In chkbst.sd7 tests for index access have been added.
  • In chkhsh.sd7 tests for hash index with default have been added.
  • In chkfil.sd7 the tests for file assignment have been improved. They use three different files and they avoid that a file is opened multiple times for writing.
  • In chkfil.sd7 a check, if appending to a file works correctly, has been added.
  • In chkfil.sd7 a test if _GENERATE_EMPTY_CLIB_FILE returns CLIB_NULL_FILE has been added.
  • In chkprc.sd7 tests for case statements with bitset, rational, type, bstring, boolean and enumeration values have been added.
  • The program chkdb.sd7 has been improved:
    • Tests for LATIN-1 charactes in fields have been added.
    • Tests for float and double fields have been added.
    • Date tests for 1858-11-17, 1999-12-31 and 2000-1-1 have been added.
    • The functions testChar1AsciiControlField(), testChar1Latin1C1ControlField(), testPositiveYearMonthDurationField() and testNegativeYearMonthDurationField() have been added.
  • In chkflt.sd7 tests for the str(FLOAT) function, for the cubic root function and for the ternary operator with -0.0 have been added.
  • In chkerr.sd7 checks if a wrong usage of an action triggers a DECL_FAILED error have been added.
  • In chkexc.sd7 tests for the exception ord function and conv operator have been added.
  • The program chk_all.sd7 has been improved to support the option minimal_tests (this tests the compiler just with the highest optimization).
  • The Seed7 compiler (s7c.sd7) has been improved:
    • In comp/type.s7i the function getExprResultType() has been improved. Now array for-each-loops work with inheritance. Many thanks to Zykaris for pointing out a difference between interpreted and compiled programs.
    • Support for case statements with struct values has been added.
    • The code generation for case statements with hash sets in when parts has been refactored
    • Support for global database and sqlStatement variables in compiled programs has been added.
    • The processing of function parameters has been improved.
    • The optimization of the integer mod operator has been improved.
    • The optimization for the integer power operator has been improved.
    • An optimization for stri @:= [n] aString mult i; has been added. Tests for stri @:= [n] aString mult i; have been added to chkidx.sd7 and chkstr.sd7.
    • An integer overflow in the array index computation is avoided.
    • In bin_act.s7i in calls of several functions a cast of the argument to uintType has been added.
    • Assignments which prepend a char use strPrependChar() to optimize.
    • String constants are appended with strAppendNoOverlap().
    • It is determined if source and destination of a string append operation might overlap. If no overlap is possible strAppendNoOverlap() is used.
    • NULL is avoided in str- and bstr-tables (the address sanitizer complains if memcpy() or memcmp() is called with NULL).
    • In sct_act.s7i in process (SCT_SELECT, ...) getting an element from a temporary struct has been improved.
    • In prc_act.s7i calls of resetExceptionCheck() have been added to the generated code.
    • The support for the type ACTION (category ACTENTRYOBJECT) has been improved.
    • In arr_act.s7i the index check has been improved to work for an empty base array.
    • String literals without slices are written directly to c_prog.
    • The management of temporary files has been improved.
    • A usage of alloc(...) has been replaced by alloc(REFPARAMOBJECT, ...).
  • Support for the configuration values TEMP_FILE_PREFIX and HAS_VECTORED_EXCEPTION_HANDLER has been added to cc_conf.s7i, confval.sd7, cmd_rtl.c and chkccomp.c.
  • Interpreter and compiler have been refactored to use catch_stack in the interpreter and in compiled programs. This allows raising a MEMORY_ERROR in case of a stack overflow. The catch_stack has been changed to grow geometrically. The catch_stack is freed in closeStack().
  • The files segv_win.c and segv_drv.h have been added. They contain the stack overflow handler for Windows. The function setupSegmentationViolationHandler() registers an error handler. In case of a stack overflow the handler calls no_memory() which does a longjmp(). At the place where setjmp() receives the longjmp the function resetExceptionCheck() is called to restore the guard pages.
  • Under Linux/BSD/Unix an alternate signal stack is used. A stack overflow triggers a SIGSEGV. The SIGSEGV handler calls no_memory() which does a longjmp(). The targets of the longjmp are maintained with catch_stack.
  • In sigutl.c the functions handleTracedSegvSignal(), sigactionTracedSegvSignal() and sigactionSegvSignal() have been added. The function handleSegvSignal() has been removed.
  • In runerr.c and s7c.sd7 definitions of the global variables error_file and error_line have been added. They are set in the functions no_memory(), raise_error2() and interprRaiseError(). They are retrieved with the functions prc_get_run_error() and prcGetRunError().
  • In numlit.c the float literal parsing has been improved to avoid calls of strlen().
  • In msg_stri.c in appendListLimited() writing expressions has been improved. The function appendListElement() has been added as well. Tests in chkerr.sd7 have been improved to check for the new error messages.
  • In runerr.c writing the place of an uncaught exception has been improved.
  • In runerr.c the function write_curr_position() has been improved to write expressions with appendListLimited()
  • In runerr.h the global variable fail_expr_stri, which stores fail_expression as string, has been introduced. The function write_fail_expression() has been removed from runerr.c.
  • In exec.c the function evaluate() has been improved to support TYPEOBJECT.
  • In exec.c the function exec_call() has been improved to support ACTENTRYOBJECT.
  • The types emptyStriType, emptyBStriType, emptyArrayType and emptyStructType have been introduced to avoid address sanitizer warnings.
  • In heaputl.h the macros ALLOC_EMPTY_STRI() and ALLOC_EMPTY_BSTRI() have been introduced.
  • The macro SET_SLICE_EMPTY() has been introduced in interpreter and compiler.
  • The macros ALLOC_EMPTY_STRI(), ALLOC_EMPTY_BSTRI() and SET_SLICE_EMPTY() assure that the mem element is a legal pointer (which is never used because the size is zero). This avoids complaints of the address sanitizer.
  • In bst_rtl.h the macro bstringHashCode() has been introduced.
  • In str_rtl.h the macro ustringHashCode() has been introduced.
  • The file str_rtl.c has been improved:
    • Variants of strAppend() and strAppendN(), which don't use realloc(), have been added. This improves the performance of strAppend() by 22% and the performance of strAppendN() by 7%.
    • The functions strConcatChar() and strConcatCharTemp() now consider that incrementing a string size cannot overflow.
    • The functions strAppend(), strAppendTemp(), strAppendNoOverlap() and strConcat() now consider that adding two string sizes cannot overflow.
    • The function strAppendNoOverlap() has been added.
    • The function strPrependChar() has been added.
    • The function ustriHash() has been renamed to ustriHashCode().
    • The restrict keyword is used in the functions strAppendNoOverlap(), strAppendTemp() and strConcatTemp().
  • In trm_cap.c a check for code != NULL has been added to the functions my_tgetnum(), my_tgetflag() and my_tgetstr().
  • In pol_sel.c the function polClear() has been fixed to decrement the usage counts from the write list instead of the read list.
  • The program chkccomp.c has been improved:
    • It defines the macros register, PID_T_SIZE, PID_T_SIGNED, HAS_BUILTIN_POPCOUNT, builtin_popcount64, HAS_SIGALTSTACK, SIGNAL_STACK_ENABLED, SIGNAL_STACK_SIZE, OS_GETCWD_RETURNS_SLASH HAS_VECTORED_EXCEPTION_HANDLER, FSEEK_SUCCEEDS_FOR_PIPE and UNREACHABLE.
    • It checks if the same file can be opened for writing twice.
    • It considers /dev/null only as null device if PATH_DELIMITER is slash (/).
    • It checks if a memcpy() of zero bytes to an illegal heap address is okay.
    • It complains if the size of float or double is not in {2, 4, 8}.
    • Define restrict as restrict if using restrict directly fails and using restrict is possible.
    • The functions determineSigaltstack(), determineAddVectoredExceptionHandler(), listDynamicLibsInBaseDir() and determineSizeofSQLWCHAR() have been added.
    • The recognition of databases has been improved.
    • Checks for partial linking and sizeof(SQLWCHAR) have been improved to work with C++.
    • It writes the values DB2_CC_OPTION, INFORMIX_CC_OPTION and SQL_SERVER_CC_OPTION to the file macros. This values are used by the makefiles.
    • A determination of read_buffer_empty() for Windows on ARM has been added.
  • The program sudo.c has been improved to protect against shell-injection and remote code execution.
  • The program wrdepend.c has been improved to avoid a NULL-pointer dereference.
  • The program setwpath.c has been improved to check value_type and function results.
  • The functions setenv7(), create_console(), resizeCatchStackOkay(), resize_catch_stack(), genArgVector(), my_tgetent() and fix_capability() have been improved to check for unsigned integer overflow when the size for malloc() is computed.
  • In heaputl.c in the functions growStri() and shrinkStri() assignments to capacity have been removed (they are already done in HEAP_REALLOC_STRI).
  • Stack functions have been moved from heaputl.c and heaputl.h to stackutl.c and stackutl.h.
  • In stackutl.c the function setupStack() has been improved to handle the case that malloc() fails.
  • The macro NORETURN has been added to the functions no_memory() and fatal_memory_error().
  • The file con_inf.c has been refactored to maintain console height and width as unsigned int.
  • In cmd_unx.c the functions getGroupFromGid() and getUserFromUid() have been improved to use a cache for mapping GIDs and UIDs to a name.
  • In cmd_unx.c the functions getGidFromGroup() and getUidFromUser() have been fixed to prevent double free of os_group and os_user in case of a FILE_ERROR.
  • In kbd_inf.c the function read_f_key() has been improved to prevent writing past the end of last_partial_match.
  • In kbdInputReady() (kbd_inf.c) and gkbInputReady() (gkb_win.c) the variable result has been renamed to inputReady.
  • In cmd_win.c the function CommandLineToArgvW() has been improved to allocate memory for the trailing NULL element at w_argv[w_argc] even if commandLine contains one character or zero characters.
  • In setlib.c the unused function set_idx() has been removed.
  • In setlib.c the function set_incl() has been improved to avoid MEMORY_ERROR if the old set is empty.
  • In dcllib.c in the functions dcl_in1() and dcl_in2() a default switch case has been added. This will never be executed but hopefully it makes source code analyzers happy.
  • In arrlib.c calls of memcpy() have been replaced with struct assignments.
  • In sctlib.c the function sct_select() has been changed such that the struct of a TEMP_DYNAMIC_OBJECT is not freed.
  • In prclib.c the functions prc_cpy() and prc_create() have been improved to support a MATCHOBJECT source with parameters.
  • In match.c tests have been added to assure that the object type of an attribute is not NULL.
  • In tim_rtl.c the function dateIsOkay() has been added. This function checks if a date is in the allowed range.
  • The function bigFromDecimalBuffer() has been added to big_gmp.c and big_rtl.c. All calls of getDecimalBigInt() have been replaced by calls of bigFromDecimalBuffer(). In numutl.c the function getDecimalBigInt() has been removed.
  • In numutl.c the function getDecimalBigRational() has been refactored.
  • In fil_rtl.c the function filClose() has been improved to handle pipes as well.
  • In fil_rtl.c the function filPopen() has been improved to use createCommandLine() and to check the mode before creating commandLine. Now memory is allocated before popen() is called.
  • The file soc_rtl.c has been improved:
    • In socLineRead() a check that bytes_received is identical to bytes_requested has been added.
    • In socAccept() a leak of file descriptors has been closed.
    • In socLineRead() an incorrect FREE_STRI2 size has been fixed.
    • The management of sockets has been improved to automatically close a socket, when the last variable that refers to the socket leaves its scope (no variable refers to the socket any more).
  • The functions appendRealValue() (in msg_stri.c), print_real_value() (in traceutl.c) and process(REF_TRACE) (in ref_act.s7i) have been changed to work for the new SOCKETOBJECT.
  • The file pcs_unx.c has been improved:
    • An _exit(127) has been added after every call of execv().
    • Checks have been added to all calls of dup2(). If dup2() fails a message is written and _exit(127) is called.
    • In pcsPipe2(), pcsPty() and pcsStartPipe() possible file descriptor leaks in error paths have been closed.
    • The function pcsPty() has been fixed to free the file childStdout before assigning to it.
    • The function pcsPty() has been improved to avoid a leak of file descriptors.
    • The function pcsPty() has been improved to avoid that masterfd is used twice in os_fdopen() calls.
    • The function setCloseOnExec() has been introduced. The function is used for file descriptors created by process functions. This way parent file descriptors will not be leaked into future processes.
  • The file pcs_win.c has been improved:
    • The function pcsStart() has been improved to open a NULL_DEVICE with fopen().
    • The functions pcsPipe2() and pcsStartPipe() have been improved to use binary files for pipes.
    • The functions pcsPipe2() and pcsStartPipe() have been improved to call _open_osfhandle() before starting the process. The result of _open_osfhandle() is checked for errors as well.
    • The functions pcsPipe2() and pcsStartPipe() have been improved to check if setmode() fails.
    • The functions pcsPipe2() and pcsStartPipe() have been improved to call fdopen() before starting the process.
    • The functions pcsPipe2() and pcsStartPipe() have been improved to use one of fclose(), _close() or CloseHandle() to close a file.
    • Code has been moved to the new function processArgument().
    • The function prepareCommandLine() has been improved to assure that a double quote in os_command_stri is escaped.
  • The file pcs_dos.c has been improved:
    • Implementations of pcsStart() and pcsStartPipe() for DOS have been added.
    • The type dos_processType has been introduced.
  • The file cmd_rtl.c has been improved:
    • The functions createCommandLine(), cmdShellCommandLine() and cmdShellExecute() have been added.
    • In cmdEnvironment() a memory leak has been closed.
    • Code from cmdToOsPath() has been moved to the new function toOsPath().
  • Comments which explain that ALLOC_CSTRI() considers the '\0' termination have been added to several files.
  • Comments which explain that no check or no initialization is necessary have been added to several files.
  • The functions freePreparedStmt() have been improved to assure that db is not NULL before accessing db->usage_count.
  • In sql_rtl.c the function sqlBindTime() has been improved to check for allowed dates with dateIsOkay().
  • The sql_cli.c database driver has been improved:
    • The functions wstri16AsUnquotedCStri(), wstri32AsUnquotedCStri(), determineIfBackslashEscapes(), determineDbCategory(), doPrepare() and doExecute() have been added.
    • The function processStatementStri() has been improved to use backticks to quote identifiers if a MySQL database is used.
    • The function sqlBindFloat() has been improved to use SQL_C_FLOAT if possible.
    • The functions sqlBindBigInt(), sqlBindBigRat(), sqlBindBool(), sqlBindBStri(), sqlBindDuration(), sqlBindFloat() sqlBindInt() and sqlBindTime() have been improved to accept bindings to SQL_WLONGVARCHAR fields.
    • The function sqlColumnBigInt() has been improved to consider decimal digit strings as bigInteger.
    • The function setDbErrorMsg() has been improved to avoid a buffer overflow if sizeof(SQLWCHAR) from the header files differs from the value used by the library.
    • An initialization of the parameters of SQLGetDiagRecW() has been added.
  • In sql_lite.c the function sqlPrepare() has been improved to allocate the prepared statement data after all sqlite3_...() functions succeeded.
  • In sql_my.c the function determineIfBackslashEscapes() has been refactored to return a boolType result.
  • In sql_my.c the function processStatementStri() has been improved to add a backtick in case the double quote is the last character.
  • In sql_post.c the function sqlOpenPost() has been improved to try internet sockets with "localhost" if host is "" and PQsetdbLogin(NULL, ...) failed.
  • The sql_fire.c database driver has been improved:
    • The declaration of isc_start_transaction() has been changed to use CDECL instead of STDCALL.
    • In the bind functions calls of isc_dsql_free_statement() have been removed.
    • The binding and fetching of duration values has been improved.
    • Support for rollback and autoCommit has been added.
    • In sqlColumnTime() getting a SQL_TYPE_TIME column has been fixed.
    • The function setDbErrorMsg() has been improved to avoid a buffer overflow.
  • In sql_db2.c, sql_ifx.c, sql_odbc.c and sql_srv.c an initialization of the parameters of prepareSqlConnection() has been added.
  • The file sql_log.c, which logs SQL ODBC/CLI interface functions, has been added.
  • Logging of SQL ODBC/CLI interface functions has been added to sql_cli.c, sql_db2.c, sql_ifx.c, sql_odbc.c and sql_srv.c.
  • The dependencies sql_cli.c and sql_log.c have been added to makefiles.
  • The target "minimal_test" has been added to the makefiles.
  • In the makefiles the partial linking commands have been improved.
  • In drw_win.c the function drwSetPos() has been improved to raise RANGE_ERROR if it is called with a pixmap.
  • In drw_x11.c a memory leak in case RANGE_ERROR is raised, has been fixed in drwText(). Calls of XDestroyImage() have been fixed as well.
  • In drw_x11.c the function redraw() has been improved to allow XExposeEvent with negative x or y.
  • In drw_dos.c the function generateEmptyWindow() has been added and the function drwGenPointList() has been improved.
  • The file ref_data.c has been improved:
    • The functions refAllocList() and refAllocRef() have been added.
    • The functions refAlloc() and refAllocVar() have been removed.
    • The function refSetCategory() has been improved to raise RANGE_ERROR for illegal category conversions.
    • Checks for NULL pointers have been added to refArrMinIdx(), refArrMaxIdx(), refArrToList(), refBody(), refHshDataToList(), refHshKeysToList(), refHshLength(), refLocalConsts(), refLocalVars(), refResini(), refResult(), refSctToList(), bigValue(), drwValue(), filValue(), polValue() and typValue(). A NULL pointer raises RANGE_ERROR.
  • In actutl.c the function searchAction() has been improved to support the value ACT_ILLEGAL.
  • In actutl.c the function actionCreateOkay() has been added. This function:
    • Checks if the result of a primitive action fits to the declaration.
    • Checks if the number of parameters of a primitive action fits to the declaration.
    • Checks if the parameters of a primitive action fit to the declaration.
  • In striutl.c the functions cp_to_command() and escape_command() have been removed.
  • In striutl.c the functions escapeCommand() and escapeParameter() have been added. These functions are used in cmd_rtl.c by createCommandLine(). The code of escapeParameter() has been taken from cmdShellEscape() in cmd_rtl.c and has been heavvily improved. Among other things It is assured that environment variable values cannot be inserted in a shell parameter.
  • The files read_me.txt and read_me.htm have been updated.
  • Spelling corrections have been made in several files.
  • In traceutl.c the function trace_nodes() has been refactored.
  • In big_gmp.c, cmd_unx.c, sql_post.c, sql_tds.c, traceutl.c, trm_cap.c and trm_inf.c functions have been refactored to work without strcpy() and strcat().
  • In typ_data.c the function funcTypeName() has been added and the function typStr() has been improved.
  • In biglib.c, bstlib.c, drwlib.c, fillib.c, pollib.c, prglib.c, setlib.c, strlib.c and typlib.c the getValue() functions have been improved to raise RANGE_ERROR for non-legal values.
  • In itflib.c the unused function itf_new() has been removed.
  • In itflib.c itf_create() has been changed to forbid FORWARDOBJECT and DECLAREDOBJECT as source.
  • The files lstlib.c and lstlib.h have been removed. Occurances of lstlib in the makefiles have been removed as well. The function bld_list_temp() has been removed from objutl.c and objutl.h.
  • Support for the actions CMD_SHELL, FIL_PCLOSE, FIL_SETBUF, HSH_REFIDX, PRC_DECLS, REF_ALLOC, REF_ALLOC_VAR, REF_PROG, REF_SCAN, REF_SELECT, REF_CONTENT, REF_MKREF, REF_CAST, REF_ADDR, REF_DEREF, SCT_ALLOC, SCT_REFIDX, TYP_ISDECLARED and TYP_ISFORWARD has been removed from interpreter and compiler. Support for the LST_... actions has been removed as well.
  • Support for the actions ACE_CMP, ACE_CPY, ACE_CREATE, ACE_HASHCODE, BLN_AND_ASSIGN, BLN_OR_ASSIGN, BLN_XOR_ASSIGN, CMD_SHELL_COMMAND_LINE, CMD_SHELL_EXECUTE, ENU_ICONV3_EXCEPT, ENU_ORD_EXCEPT, PRC_ASSERT, PRC_GET_RUN_ERROR, REF_ALLOC_LIST, REF_ALLOC_REF, RFL_FOR_VAR_KEY, SQL_DB_CATEGORY and TYP_TYPEOF has been added to interpreter and compiler.
  • The actions ACT_EQ, ACT_GEN, ACT_ICONV1, ACT_ICONV3, ACT_NE, ACT_ORD, ACT_STR and ACT_VALUE have been replaced by the actions ACE_EQ, ACE_GEN, ACE_ICONV1, ACE_ICONV3, ACE_NE, ACE_ORD, ACE_STR and ACE_VALUE.
  • The actions, CHR_CLIT, CON_H_SCL, CON_V_SCL, DRW_RGBCOL, ENU_LIT, FIL_LIT, STR_CLIT and STR_LIT have been renamed to CHR_C_LITERAL, CON_H_SCROLL, CON_V_SCROLL, DRW_RGB_COLOR, ENU_LITERAL, FIL_LITERAL, STR_C_LITERAL and STR_LITERAL respectively.
  • Commented out printf() statements have been removed in cmd_rtl.c, dcllib.c, dir_win.c and syvarutl.c.
  • Logging functions have been improved in actlib.c, actutl.c, analyze.c, arrlib.c, arr_rtl.c, big_gmp.c, big_rtl.c, bstlib.c, bst_rtl.c, cmdlib.c, cmd_rtl.c, cmd_unx.c, cmd_win.c, con_emc.c, con_wat.c, con_win.c, dcllib.c, dir_dos.c, dir_win.c, drwlib.c, drw_x11.c, executl.c, fillib.c, fil_dos.c, fil_emc.c, fil_rtl.c, fil_unx.c, fil_win.c, infile.c, kbd_inf.c, kbd_poll.c, pcs_dos.c, pcs_unx.c, pcs_win.c, pollib.c, pol_sel.c, pol_unx.c prclib.c, prglib.c, prg_comp.c, reflib.c, ref_data.c, rfllib.c, sctlib.c, sigutl.c, soc_none.c, soc_rtl.c, sqllib.c, sql_cli.c, sql_db2.c, sql_fire.c, sql_ifx.c, sql_lite.c, sql_my.c, sql_odbc.c, sql_post.c, sql_srv.c, sql_tds.c, stackutl.c, striutl.c, strlib.c, str_rtl.c, trm_cap.c, typlib.c and chkdb.sd7.
  • Documentation comments have been added or improved in chkfil.sd7, bin32.s7i, bitdata.s7i, boolean.s7i, char.s7i, clib_file.s7i, cli_cmds.s7i, external_file.s7i, hash.s7i, httpserv.s7i, http_request.s7i, imagefile.s7i, osfiles.s7i, pkcs1.s7i, process.s7i, progs.s7i, shell.s7i, string.s7i, actlib.c, act_comp.c, actutl.c, blnlib.c, bln_rtl.h, big_gmp.c, big_rtl.c, chclsutl.c, chkccomp.c, chrlib.c, cmd_rtl.c, con_wat.c, data_rtl.h, fillib.c, fil_rtl_c, hshlib.c, pcs_dos.c, pcs_rtl.c, pcs_unx.c, pcs_win.c, prclib.c, ref_data.c, reflib.c, rfllib.c, sigutl.c, sql_rtl.c, striutl.h and str_rtl.c.

Regards,
Thomas Mertes

What's Changed

New Contributors

Full Changelog: Seed7_release_2025-09-30...Seed7_release_2026-07-11

Contributors

j-avdeev, Zykaris, and 2 other contributors
Assets 2
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