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* New function: rmdir.Kaz Kylheku2020-01-281-0/+16
| | | | | | | * sysif.c (rmdir_wrap): New static function. (sysif_init): rmdir intrinsic registered. * txr.1: Documented.
* New functions: chown, lchown.Kaz Kyheku2020-01-281-1/+45
| | | | | | | | | | * configure: New configure test for chown, fchown and lchown. * sysif.c (get_fd): Define for HAVE_CHOWN also. (do_chown, chown_wrap, lchown_wrap): New functions. (sysif_init): chown and lchown intrinsics registered. * txr.1: Documented.
* ensure-dir: return nil when exists.Kaz Kylheku2020-01-271-1/+2
| | | | | | | * sysif.c (mkdir_nothrow_exists): Return nil in the existence case, when the object is a directory or a symlink to one. * txr.1: Updated.
* ensure-dir: fail if exists and not dir.Kaz Kylheku2020-01-251-20/+30
| | | | | | | | | | | | | * sysif.c (do_stat, do_lstat): Functions relocated before mkdir_nothrow_exists. (mkdir_nothrow_exists): In the EEXIST case, call stat on the object. If it's not a directory or a symlink to a directory, then do not suppress the error; propagate it to the caller, where it will become an exception. * txr.1: Specify the behavior of ensure-dir more precisely: that it only supresses the existence error for directories and directory symlinks.
* New function: mkfifo.Kaz Kylheku2020-01-231-0/+25
| | | | | | | * configure: detect mkfifo. (sysif_init): Register mkfifo intrinsic. * txr.1: Documented.
* mknod: third arg must be optional.Kaz Kylheku2020-01-231-1/+1
| | | | | * sysif.c (sysif_init): Fix incorrect registration of mknod, whose third argument (dev) is documented as optional.
* New functions utimes, lutimes.Kaz Kylheku2020-01-211-1/+113
| | | | | | | | | | | | | * configure: Detect various functions for setting file timestamps. * sysif.c (get_fd): Define this function for use by utimes also. (timens, do_utimes): New static functions. (wrap_utimes, wrap_lutimes): New static functions. (sysif_init): Register utimes and lutimes intrinsics. * txr.1: Documented.
* sysif: fix inappropriate use of w_ convention.Kaz Kylheku2020-01-151-13/+13
| | | | | | | | | | | | | | | | | | | | | | | Some functions in utf8.c have w_ prefixes. They are wide character wrappers for functions that take multi-byte string inputs. The prefix is being inappropriately used in the names of a few sysif functions that should be named _wrap. * sysif.c (w_stat, w_lstat, w_fstat): Rename to do_stat, do_lstat and do_fstat, respectively. These are callbacks used with stat_impl. (statp, statl, statf): Rename to stat_wrap, lstat_wrap and fstat_wrap, following existing convention. Additionally, stat_wrap becomes static since nothing outside this file calls it. (sysif_init): Follow renames of statp, statl and statf. * sysif.h (statp): Declaration removed. (statf): Renamed to fstat_wrap. * parser.c (load_rcfile): Follow statf rename.
* fstat: take fd argument.Kaz Kyheku2020-01-151-12/+7
| | | | | | | * sysif.c (get_fd): Make available under HAVE_SYS_STAT. (fstat): Allow fd or stream argument using get_fd. * txr.1: Documented.
* chmod: work on streams and descriptors using fchmod.Kaz Kyheku2020-01-151-6/+31
| | | | | | | | | * configure: extend chmod detection to cover fchmod. * sysif.c (get_fd): New static functions. (chmod_wrap): Include fchmod wrapping for integer or stream argument. (sysif_init): Register fchmod intrinsic.
* sysif.h: remove dependency on off_t.Kaz Kylheku2020-01-011-2/+6
| | | | | | | | | | | | | | The sysif.h header breaks on some systems because it references off_t, which requires <sys/types.h>. But the off_t materials in this header are unnecessary; we can remove them. * sysif.c (off_t_num, num_off_t): Extern functions become static, and are wrapped with #if HAVE_FSEEKO. These functions are only called from sysif.c, only from code relying on fseeko. * sysif.h (OFF_T_MAX, OFF_T_MIN): Macros not used anywhere are removed. (off_t_num, num_off_t): Declarations removed.
* Copyright year bump 2020.Kaz Kylheku2019-12-311-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * LICENSE, LICENSE-CYG, METALICENSE, Makefile, alloca.h, args.c, args.h, arith.c, arith.h, buf.c, buf.h, cadr.c, cadr.h, chksum.c, chksum.h, chksums/crc32.c, chksums/crc32.h, combi.c, combi.h, configure, debug.c, debug.h, eval.c, eval.h, ffi.c, ffi.h, filter.c, filter.h, ftw.c, ftw.h, gc.c, gc.h, glob.c, glob.h, hash.c, hash.h, itypes.c, itypes.h, jmp.S, lib.c, lib.h, linenoise/linenoise.c, linenoise/linenoise.h, lisplib.c, lisplib.h, match.c, match.h, parser.c, parser.h, parser.l, parser.y, protsym.c, rand.c, rand.h, regex.c, regex.h, share/txr/stdlib/asm.tl, share/txr/stdlib/awk.tl, share/txr/stdlib/build.tl, share/txr/stdlib/cadr.tl, share/txr/stdlib/compiler.tl, share/txr/stdlib/conv.tl, share/txr/stdlib/debugger.tl, share/txr/stdlib/defset.tl, share/txr/stdlib/doloop.tl, share/txr/stdlib/error.tl, share/txr/stdlib/except.tl, share/txr/stdlib/ffi.tl, share/txr/stdlib/getopts.tl, share/txr/stdlib/getput.tl, share/txr/stdlib/hash.tl, share/txr/stdlib/ifa.tl, share/txr/stdlib/keyparams.tl, share/txr/stdlib/op.tl, share/txr/stdlib/package.tl, share/txr/stdlib/param.tl, share/txr/stdlib/path-test.tl, share/txr/stdlib/place.tl, share/txr/stdlib/pmac.tl, share/txr/stdlib/save-exe.tl, share/txr/stdlib/socket.tl, share/txr/stdlib/stream-wrap.tl, share/txr/stdlib/struct.tl, share/txr/stdlib/tagbody.tl, share/txr/stdlib/termios.tl, share/txr/stdlib/trace.tl, share/txr/stdlib/txr-case.tl, share/txr/stdlib/type.tl, share/txr/stdlib/vm-param.tl, share/txr/stdlib/with-resources.tl, share/txr/stdlib/with-stream.tl, share/txr/stdlib/yield.tl, signal.c, signal.h, socket.c, socket.h, stream.c, stream.h, struct.c, struct.h, strudel.c, strudel.h, sysif.c, sysif.h, syslog.c, syslog.h, termios.c, termios.h, tree.c, tree.h, txr.1, txr.c, txr.h, unwind.c, unwind.h, utf8.c, utf8.h, vm.c, vm.h, vmop.h, win/cleansvg.txr: Extended copyright notices to 2020.
* lib: don't assume time_t is signed.Kaz Kylheku2019-10-311-3/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | We introduce the function c_time to convert a Lisp integer to time_t, and num_time to do the reverse conversion. The FFI type time-t already does this right. (See registration of time-t in ffi_init_extra_types). * hash.c (gen_hash_seed): The first value out of time_sec_usec corresponds to a time_t value. We now convert this to C number using c_time rather than c_num. Also, while we are touching this code, the microseconds value can convert directly to ucnum with c_unum. * lib.c (time_sec_usec): Use num_time for seconds. (time_string_local, time_string_utc, time_fields_local, time_fields_utc, time_struct_local, time_struct_utc): Use c_time. (make_time_impl, time_parse_utc): Use num_time instead of num. * signal.h (getitimer_wrap, setitimer_wrap): Convert tv_sec members of struct timeval using c_time and num_time. * sysif.c (c_time, num_time): New functions. (stat_to_struct): Convert st_atime, st_mtime and st_ctime to Lisp using num_time instead of num. * sysif.c (c_time, num_time): Declared.
* stat: support high resolution time stamps.Kaz Kylheku2019-10-291-3/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | * configure (have_sys_stat): New variable. Set to y when our test detects <sys/stat.h>. New test added for the presence of high resolution time stamps in struct stat. If we have these, we #define HAVE_STAT_NSEC 1 in config.h. * share/txr/stdlib/path-test.tl (path-newer): Compare nanosecond parts of the modification time if the seconds are equal, improving the resolution of the test. * sysif.c (atime_nsec_s, mtime_nsec_s, ctime_nsec_s): New symbol variables. (stat_to_struct): If nanosecond resolution is available, set the new nanosecond slots from the three tv_nsec fields in struct stat. Otherwise, set the new slots to zero. (sysif_init): Initialize the new symbol variables. Add the three new slots to the stat struct. * sysif.c (atime_nsec_s, mtime_nsec_s, ctime_nsec_s): Declared. * txr.1: Documented new atime-nsec, mtime-nsec and ctime-nsec slots of stat structure. Added note to path-newer mentioning high resolution support.
* crypt: detect and use glibc's crypt_r.Kaz Kylheku2019-08-261-2/+10
| | | | | | | | | | * configure: New test for crypt_r, depositing HAVE_CRYPT_R preprocessor symbol in config.h. * sysif.c: Conditionally include <crypt.h> header. (crypt_wrap): Use crypt_r if HAVE_CRYPT_R is nonzero. (sysif_init): Register crypt intrinsic if we HAVE_CRYPT or if we HAVE_CRYPT_R.
* at-exit-do-not-call: wrong return value.Kaz Kylheku2019-06-201-1/+1
| | | | | * sysif.c (at_exit_do_not_call): Reverse Boolean polarity of return value to match documentation.
* Adding errno constants.Kaz Kylheku2019-06-091-0/+86
| | | | | | | | | | | | | | | | | | | | * sysif.c (sysif_init): registering variables e2big, eacces, eaddrinuse, eaddrnotavail, eafnosupport, eagain, ealready, ebadf, ebadmsg, ebusy, ecanceled, echild, econnaborted, econnrefused, econnreset, edeadlk, edestaddrreq, edom, edquot, eexist, efault, efbig, ehostunreach, eidrm, eilseq, einprogress, eintr, einval, eio, eisconn, eisdir, eloop, emfile, emlink, emsgsize, emultihop, enametoolong, enetdown, enetreset, enetunreach, enfile, enobufs, enodata, enodev, enoent, enoexec, enolck, enolink, enomem, enomsg, enoprotoopt, enospc, enosr, enostr, enosys, enotconn, enotdir, enotempty, enotrecoverable, enotsock, enotsup, enotty, enxio, eopnotsupp, eoverflow, eownerdead, eperm, epipe, eproto, eprotonosupport, eprototype, erange, erofs, espipe, esrch, estale, etime, etimedout, etxtbsy ewouldblock and exdev. * txr.1: Documented.
* Adding fcntl interface.Kaz Kylheku2019-06-091-1/+142
| | | | | | | | | | | | | | | | | | | * configure: changing HAVE_FCNTL_H to HAVE_FCNTL. * sysif.c (flock_s, type_s, whence_s, start_s, len_s, pid_s): New symbol variables. (flock_pack, flock_unpack, fcntl_wrap): New static functions. (sysif_init): Initialize new symbol variables. Create flock struct type. Register new intrinsic variables: o-accmode, o-rdonly, o-wronly, o-rdwr, o-creat, o-noctty, o-trunc, o-append, o-nonblock, o-sync, o-async, o-directory, o-nofollow, o-cloexec, o-direct, o-noatime, o-path, f-dupfd, f-dupfd-cloexec, f-getfd, f-setfd, fd-cloexec, f-getfl, f-setfl, f-getlk, f-setlk, f-setlkw, f-rdlck, f-wrlck, f-unlck, seek-set, seek-cur and seek-end. Register fcntl intrinsic function. * txr.1: Documented.
* posix: add close function.Kaz Kylheku2019-05-301-0/+17
| | | | | | | * sysif.c (close_wrap): New static function. (sysif_init): close intrinsic registered. * txr.1: Documented.
* lib: more nuanced file access errors.Kaz Kylheku2019-05-011-41/+88
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Several new more specific exception types are derived from file-error and used. Error handlers can distinguish unexpected non-existence, unexpected existence and permission errors from each other and other errors. * lib.c (path_not_found_s, path_exists_s, path_permission_s): New symbol variables. (obj_init): New variables initialized. * lib.h (path_not_found_s, path_exists_s, path_permission_s): Declared. * parser.c (open_txr_file): Use new errno_to_file_error function to convert errno to exception symbol. * socket.c (open_sockfd): Likewise. * stream.c (open_directory, open_file, open_fileno, open_command, open_process, run, remove_path, rename_path): Likewise, and process-error is used in open_process and run instead of file-error for problems related to creating the process. * sysif.c (errno_to_file_error): New function. (mkdir_wrap, ensure_dir, chdir_wrap, getcwd_wrap, mknod_wrap, chmod_wrap, symlink_wrap, link_wrap, readlink_wrap, stat_impl, umask_wrap, ): Use errno_to_file_error to convert errno to exception symbol. (exec_wrap): Use process-error instead of file-error. * sysif.c (errno_to_file_error): Declared. * unwind.c (uw_init): Register path-not-found, path-exists and path-permission as subtypes of file-error. * txr.1: Documented.
* streams: use Boolean return value for stdio_fseek.Kaz Kylheku2019-01-251-4/+3
| | | | | | | | | | | | | | * stream.c (stdio_seek): Handle new-style Boolean return from stdio_fseek. * sysif.c (stdio_fseek): Return an int indication that is 1 for success, 0 for failure. There was a mistaken assumption here that fseeko returns the file offset, and the return value in the fseek case was mistakenly harmonized, using a wasteful call to stdio_ftell. The only call to this function relies only on a Boolean success/fail indication. * sysif.h (stdio_fseek): Declaration updated.
* sysif: take advantage of i64_t in off_t handling.Kaz Kylheku2019-01-251-10/+4
| | | | | | * sysif.c (num_off_t): Remove #ifdef here and just use num_64 if off_t fits into 64 bits. Now this code compiles even if HAVE_DOUBLE_INTPTR_T is missing.
* Fix some instances of 4 bytes = 32 bits assumption.Kaz Kylheku2019-01-231-3/+3
| | | | | | | | | | | | | | | | | * hash.c (equal_hash, eql_hash, cobj_eq_hash_op, hash_hash_op): Multiply object size by CHAR_BIT and switch on number of bits, rather than bytes. * sysif.c (off_t_num): Likewise. * arith.c, ffi.c, itypes.c, rand.c: In numerous #if directive, fix size tests from bytes to bits. * configure: in the test that detects integer types, and in the test for enabling large file offsets, detect one more variable from the system: the value of CHAR_BIT. This turns into SIZEOF_BYTE. We use that value instead of a hard-coded 8.
* sysif: use double-intptr function from arith.Kaz Kylheku2019-01-231-4/+2
| | | | | | | | | | | * arith.c (bignum_dbl_ipt): Change internal function to external linkage. * arith.h (bignum_dbl_ipt): Conditionally declared. * sysif.c (num_off_t): Use bignum_dbl_ipt instead of open-coding exactly the same thing that bignum_dbl_ipt does. Abort is changed to same internal_error as in off_t_num.
* sysif: remove low-level MPI code for off_t conversion.Kaz Kylheku2019-01-231-49/+11
| | | | | | | | | | | * sysif.c (off_t_num): Retarget to just use c_i32 or c_i64 from ctypes.c, depending on which of these types is the same width as off_t. (stdio_fseek): Pass identifying "self" string to off_t_num. Don't use off_t_num for fseek's offset argument which is of type long; for that we can use c_long from ctypes.c. * sysif.h (off_t_num): Declaration updated.
* mpi: put access macros into mp_ namespaceKaz Kylheku2019-01-221-9/+9
| | | | | | | | | | | | | | | | | | * mpi/mpi.h (mp_sign, mp_isneg, mp_used, mp_alloc, mp_digits, mp_digit): New macros, based on renaming SIGN, ISNEG, USED, ALLOC, DIGITS and DIGIT. (mp_set_prec): Use mp_digits instead of DIGITS. * mpi/mpi.c (SIGN, ISNEG, USED, ALLOC, DIGITS, DIGIT): Macros defined here now, as local aliases for their namespaced counterparts. * arith.c (signum, floordiv): Replace ISNEG with mp_isneg. * rand.c (random): Replace ISNEG with mp_isneg. * sysif.c (off_t_num): Replace USED, DIGITS and ISNEG with mp_used, mp_digits and mp_isneg.
* Copyright year bump 2019.Kaz Kylheku2019-01-161-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * LICENSE, LICENSE-CYG, METALICENSE, Makefile, args.c, args.h, arith.c, arith.h, buf.c, buf.h, cadr.c, cadr.h, combi.c, combi.h, configure, debug.c, debug.h, eval.c, eval.h, ffi.c, ffi.h, filter.c, filter.h, ftw.h, gc.c, gc.h, glob.c, glob.h, hash.c, hash.h, itypes.c, itypes.h, jmp.S, lib.c, lib.h, lisplib.c, lisplib.h, match.c, match.h, parser.c, parser.h, parser.l, parser.y, protsym.c, rand.c, rand.h, regex.c, regex.h, share/txr/stdlib/asm.tl, share/txr/stdlib/awk.tl, share/txr/stdlib/build.tl, share/txr/stdlib/cadr.tl, share/txr/stdlib/compiler.tl, share/txr/stdlib/conv.tl, share/txr/stdlib/doloop.tl, share/txr/stdlib/error.tl, share/txr/stdlib/except.tl, share/txr/stdlib/ffi.tl, share/txr/stdlib/getopts.tl, share/txr/stdlib/getput.tl, share/txr/stdlib/hash.tl, share/txr/stdlib/ifa.tl, share/txr/stdlib/keyparams.tl, share/txr/stdlib/op.tl, share/txr/stdlib/package.tl, share/txr/stdlib/path-test.tl, share/txr/stdlib/place.tl, share/txr/stdlib/pmac.tl, share/txr/stdlib/socket.tl, share/txr/stdlib/stream-wrap.tl, share/txr/stdlib/struct.tl, share/txr/stdlib/tagbody.tl, share/txr/stdlib/termios.tl, share/txr/stdlib/trace.tl, share/txr/stdlib/txr-case.tl, share/txr/stdlib/type.tl, share/txr/stdlib/vm-param.tl, share/txr/stdlib/with-resources.tl, share/txr/stdlib/with-stream.tl, share/txr/stdlib/yield.tl, signal.c, signal.h, socket.c, socket.h, stream.c, stream.h, struct.c, struct.h, strudel.c, strudel.h, sysif.c, sysif.h, syslog.c, syslog.h, termios.c, termios.h, txr.1, txr.c, txr.h, unwind.c, unwind.h, utf8.c, utf8.h, vm.c, vm.h, vmop.h, win/cleansvg.txr: Extended Copyright line to 2018.
* Eliminate ALLOCA_H.Kaz Kylheku2018-12-311-1/+1
| | | | | | | | | | | | | * configure: Instead of generating a definition of ALLOCA_H, generate the variable HAVE_ALLOCA_<name> with a value of 1, where <name> is one of stdlib, alloca or malloc. * alloca.h: New header. * args.c, eval.c, ffi.c ffi.c, ftw.c, hash.c, lib.c, match.c, parser.c, parser.y, regex.c, socket.c, stream.c, struct.c, sysif.c, syslog.c, termios.c, unwind.c, vm.c: Include "alloca.h" instead of ALLOCA_H.
* Drastically reduce inclusion of <dirent.h>.Kaz Kylheku2018-12-111-1/+0
| | | | | | | | | | | | | | | | | | | The <dirent.h> header is included all over the place because it is needed by a single declaration in stream.h. That declaration is for a function that is only called within stream.c, so we make it internal. Now only stream.c has to include <dirent.h>. * buf.c, debug.c, eval.c, ffi.c, filter.c, gc.c, gencadr.txr, hash.c, lib.c, lisplib.c, match.c, parser.c, regex.c, socket.c, struct.c, strudel.c, sysif.c, syslog.c, termios.c, txr.c, unwind.c, vm.c: Remove #include <dirent.h>. * cadr.c: Regenerated. * stream.c (make_dir_stream): Make external function static. * stream.h (make_dir_stream): Declaration updated.
* Fix wrong uses of ~s for function name string.Kaz Kylheku2018-11-071-3/+3
| | | | | | | | | | | | * ffi.c (make_ffi_type_enum): Use ~a for function name rather than ~s because it's a string which is quoted under ~s. * lib.c (chk_xalloc, string_extend, find_symbol, intern_fallback): Likewise. * stream.c (open_process, run): Likewise. * sysif.c (exec_wrap, setgroups_wrap, dlclose_wrap): Likewise.
* sysif: work around glibc warnings about makedev macros.Kaz Kylheku2018-06-081-0/+3
| | | | | | | | | | | | | | | | | The GNU C library is deprecating the practice of <sys/types.h> defining the makedev, major and minor macros. A loud, multi-line warning is issued for programs which include this header and then use the macros. The new way is to rely on the <sys/sysmacros.h> header instead. Of course, that might not exist. * configure (have_makedev): New variable. Upgrade the makedev test to try it with <sys/sysmacros.h> first, then fall back on <sys/types.h>. A new config macro HAVE_SYS_SYSMACROS_H is created in config.h if sysmacros exists. * sysif.c: If config.h defines HAVE_SYS_SYSMACROS_H to a nonzero value, then include <sys/sysmacros.h>.
* bugfix: correcly obtain self path on Solaris.Kaz Kylheku2018-05-041-1/+1
| | | | | | | | | | | | * configure: Add detection for getexecname. * sysif.c (getcwd_wrap): Change static function to external. * sysif.h (getcwd_wrap): Declared. * txr.c (get_self_path): New implementation for Solaris using getexecname, which requires us to prepend the current directory name if the result is a relative path.
* Copyright year bump 2018.Kaz Kylheku2018-02-151-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * LICENSE, LICENSE-CYG, METALICENSE, Makefile, args.c, args.h, arith.c, arith.h, buf.c, buf.h, cadr.c, cadr.h, combi.c, combi.h, configure, debug.c, debug.h, eval.c, eval.h, ffi.c, ffi.h, filter.c, filter.h, ftw.c, ftw.h, gc.c, gc.h, glob.c, glob.h, hash.c, hash.h, itypes.c, itypes.h, jmp.S, lib.c, lib.h, lisplib.c, lisplib.h, match.c, match.h, parser.c, parser.h, parser.l, parser.y, protsym.c, rand.c, rand.h, regex.c, regex.h, share/txr/stdlib/awk.tl, share/txr/stdlib/build.tl, share/txr/stdlib/cadr.tl, share/txr/stdlib/conv.tl, share/txr/stdlib/doloop.tl, share/txr/stdlib/error.tl, share/txr/stdlib/except.tl, share/txr/stdlib/ffi.tl, share/txr/stdlib/getopts.tl, share/txr/stdlib/getput.tl, share/txr/stdlib/hash.tl, share/txr/stdlib/ifa.tl, share/txr/stdlib/keyparams.tl, share/txr/stdlib/op.tl, share/txr/stdlib/package.tl, share/txr/stdlib/path-test.tl, share/txr/stdlib/place.tl, share/txr/stdlib/pmac.tl, share/txr/stdlib/socket.tl, share/txr/stdlib/stream-wrap.tl, share/txr/stdlib/struct.tl, share/txr/stdlib/tagbody.tl, share/txr/stdlib/termios.tl, share/txr/stdlib/txr-case.tl, share/txr/stdlib/type.tl, share/txr/stdlib/with-resources.tl, share/txr/stdlib/with-stream.tl, share/txr/stdlib/yield.tl, signal.c, signal.h, socket.c, socket.h, stream.c, stream.h, struct.c, struct.h, strudel.c, strudel.h, sysif.c, sysif.h, syslog.c, syslog.h, termios.c, termios.h, txr.1, txr.c, txr.h, unwind.c, unwind.h, utf8.c, utf8.h, win/cleansvg.txr: Extended Copyright line to 2018.
* mpi: fix some careless use of integer types.Kaz Kylheku2017-06-181-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | MPI has a mp_size type for sizing of the digit arrays and some other uses. It is not consistently used. Moreover, it is typedef'd as a signed type. The type int is used for iterating over digits, instead of the matching mpi_size type. The int type is used as a size argument in some functions, and in functions that return the number of bits. This patch makes mp_size unsigned and replaces most uses of int with a more appropriate type. Because mp_size is now used for indexing, and is unsigned, some downward loop termination tests have to be changed; the always true condition ix >= 0 cannot be used. * arith.c (width): Use mp_size for local variable which iterates over digits inside mpi_int object, and for bit count. Use unum to convert bit count to Lisp integer: mp_size could be out of range of cnum. * mpi/mpi-types.h (mp_size): Typedef to unsigned. (MP_SIZE_MAX): New macro. (MP_DIGIT_BIT, MP_WORD_BIT): Cast the value to mp_size rather than to int. * mpi/mpi.c (s_mp_defprec): Declare variable as mp_size. (s_mp_setz, s_mp_copy, mp_size, s_highest_bit_mp, s_mp_set_bit, s_mp_ispow2, s_mp_outlen, mp_set_int, mp_set_uintptr, mp_set_double_intptr, mp_expt, mp_sqrt, mp_exptmod, mp_hash, mp_gcd, mp_shift, mp_bit, mp_to_double, mp_print, mp_read_signed_bin, mp_signed_bin_size, mp_read_unsigned_bin, mp_unsigned_bin_size, mp_to_unsigned_bin, mp_to_unsigned_buf, mp_count_bits, mp_is_pow_two, mp_read_radix, mp_radix_size, mp_value_radix_size, mp_toradix_case, s_mp_setz, s_mp_copy, mp_size, s_highest_bit_mp, s_mp_set_bit, s_mp_mul_2, s_mp_mod_2d, s_mp_div_2d, s_mp_div_d, s_mp_sqr, s_mp_sqr, s_mp_div, s_mp_cmp, s_mp_cmp_d, s_mp_ispow2, s_mp_outlen): In all these functions, use size_t for external size, mp_size for number of digits and bits, in return values, arguments and local variables. Tests in descending loops are adjusted for unsigned logic. * mpi/mpi.h (mp_get_prec, mp_set_prec, mp_read_signed_bin, mp_signed_bin_size, mp_read_unsigned_bin, mp_unsigned_bin_size, mp_to_unsigned_buf, mp_count_bits, mp_is_pow_two, mp_radix_size, mp_value_radix_size): Declarations updated. * mpi/mplogic.c (mpl_not, mpl_and, mpl_or, mpl_xor, mpl_rsh, mpl_lsh, mpl_num_set, mpl_num_clear, mpl_parity): Just like in mpi.c * rand.c (make_random_state): Use mp_size and ucnum for local variables holding digit and bit counts. * sysif.c (off_t_num): Use mp_size for digit count.
* sysif: add overflow checks.Kaz Kylheku2017-06-121-14/+19
| | | | | | | | | | | | | | * sysif.c (excec_wrap): Check that our nargs manipulation doesn't exceed INT_MAX. Use chk_xalloc to allocate the argument vector, providing an overflow check. Use self variable in place function name embedded in literal. (getgroups_wrap): Use chk_xalloc instead of chk_malloc, so multiplication overflow is checked. Use self variable in place function name embedded in literal. (setgroups_wrap): Revamp existing overflow check. Use ucnum for the size, check that it can convert to size_t and back without loss of value, and use chk_xalloc instead of chk_malloc.
* Adding realpath function.Kaz Kylheku2017-05-211-0/+17
| | | | | | | | | * configure: New test for realpath. * sysif.c (realpath_wrap): New static function. (sysif_init): Registered realpath intrinsic. * txr.1: Documented.
* Splitting cptr object into separate CPTR tag.Kaz Kylheku2017-05-151-13/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | CPTR shares representation and a lot of implementation with COBJ. The COBJ class symbol is the CPTR type tag. There is no hierarchy among CPTR tags. The nil tag is used for a modicum of type looseness, so that we don't straitjacket ourselves too much into this tag-based typing scheme. All existing cptr objects are becoming CPTR, and all get a nil tag, except for dlopen library handles, and dlsym symbols, which are tagged as dlhandle and dlsym. The FFI framework will support tag-declared cptr's. This will help with safety. For instance, suppose an API has half a dozen different kinds of opaque handles. If they are all just cptr on the TXR Lisp side, it's easy to mix them up, passing the wrong one to the wrong C function. * lib.h (enum type): New enum member, CPTR. (cptr_print_op, cptr_typed, cptrp, cptr_type, cptr_handle): Declared. (cptr_addr_of): Parameters added. * lib.c (code2type): Map CPTR type code to cptr_s. (equal): Handle CPTR objects. They are only equal to other CPTR objects which have the same operations, and are equal under the equal function of those operations. (cptr_print_op): New function. (cptr_ops): Use cptr_print_op rather than cobj_print_op. (cptr_typed): New function. (cptr): Use cptr_typed to make a cptr with tag nil, rather than using cobj. (cptrp, cptr_handle, cptr_type): New functions. (cptr_get): Go through cptr_handle rather than cobj_handle. (cptr_addr_of, cptr_zap, cptr_free): Use call to cptr_handle rather than cobj_handle for the type checking side effect. New parameters for type and parent function name. (obj_print_impl): Handle CPTR with same case as COBJ. * gc.c (finalize, mark_obj): Handle CPTR cases using common code with COBJ. * hash.c (equal_hash): Handle CPTR just like COBJ. * eval.c (eval_init): Register cptrp and cptr-type intrinsic functions. * ffi.c (ffi_cptr_put, ffi_cptr_get, ffi_cptr_alloc): Use the potentially type-safe cptr_handle, instead of cptr_get. However, for an untagged cptr, there is no type safety because tft->mtypes is nil. The argument can be any kind of cptr. * sysif.c (dlhandle_s, dlsym_s): New symbol variables. (cptr_dl_ops): Use cptr_print_op. (dlopen_wrap, dlclose_wrap): Use typed cptr with dlhandle as the type. (dlsym_wrap, dlsym_checked, dlvsym_wrap, dlvsym_checked): Recognize only a cptr of type dlhandle for the library. Construct a typed cptr of type dlsym. (sysif_init): Initialize dlhandle_s and dlsym_s. Register dlsym function using dlsym_s.
* bugfix: use proper hashing for cptr.Kaz Kylheku2017-05-151-1/+1
| | | | | | | | | | | | | | | Since cptr objects are equal if their handles are equal, they must have a hashing function over the handle rather than over their own address. * lib.c (cobj_handle_hash_op): New function. (cptr_ops): Use cobj_handle_hash_op instead of cobj_eq_hash_op. * lib.h (cobj_handle_hash_op): Declared. * sysif.c (cptr_dl_ops): Use cobj_handle_hash_op instead of cobj_eq_hash_op.
* cobj: rename poorly named default operation.Kaz Kylheku2017-05-151-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Renaming cobj_hash_op to cobj_eq_hash_op. This function is only appropriate to use with COBJ objects which use eq as their equal funtion. I've spotted one instance of an inappropriate use which have to be addressed by a different commit: the equal function is other than eq, but cobj_hash_op is used for the equal hash. * lib.h (cobj_hash_op): Declaration renamed to cobj_eq_hash_op. * hash.c (cobj_hash_op): Renamed to cobj_eq_hash_op. (hash_iter_ops): Refer to renamed cobj_hash_eq_op. * ffi.c (ffi_type_builtin_ops, ffi_type_struct_ops, ffi_type_ptr_ops, ffi-closure_ops, ffi_call_desc_ops): Likewise. * lib.c (cptr_ops): Likewise. * parser.c (parser_ops): Likewise. * rand.c (random_state_ops): Likewise. * regex.c (char_set_ops, regex_obj_ops): Likewise. * socket.c (dgram_strm_ops): Likewise. * stream.c (null_ops, stdio_ops, tail_ops, pipe_ops, dir_ops, string_in_ops, byte_in_ops, strlist_in_ops, string_out_ops, strlist_out_ops, cat_stream_ops, record_adapter_ops): Likewise. * struct.c (struct_type_ops): Likewise. * sysif.c (cptr_dl_ops): Likewise. * syslog.c (syslog_strm_ops): Likewise. * unwind.c (cont_ops): Likewise.
* dlopen: add error reporting via dlerror()Kaz Kylheku2017-05-031-9/+22
| | | | | | | | | | * sysif.c (dlopen_wrap): Call dlerror() to clear the error string. Then if the call returns null, call dlerror() again and use the string in the exception if available. (dlsym_error): New static function. (dlsym_checked, dlvsym_checked): Clear error string by calling dlerror(). Afer the call, if the pointer is null call dlsym_error to report.
* dlopen: allow nil name and default both args.Kaz Kylheku2017-05-031-4/+5
| | | | | | | | | * sysif.c (dlopen_wrap): Allow the name to be null or missing, in which case a null pointer is passed to dlopen to access the program image itself. Default the flags argument to RTLD_LAZY. (sysif_init): Re-regiser dlopen intrinsic such that both arguments are optional.
* HAVE_SYS_TYPES_H config variable.Kaz Kylheku2017-05-031-1/+1
| | | | | | | | | | | * configure (have_sys_types): New variable. Set to "y" in various tests which prove that the <sys/types.h> header is available. (HAVE_SYS_TYPES_H): Add to config.h in the dependent variale generation section, if have_sys_types is true. * sysif.c: Use HAVE_SYS_TYPES_H instead of relying on HAVE_MAKEDEV.
* Error checking in dlopen wrappers.Kaz Kylheku2017-05-021-0/+22
| | | | | | | | * sysif.c (dlopen_wrap): Throw instead of returning null cptr if the dlopen fails. (dlsym_checked, dlvsym_checked): New static functions. (sysif_init): Register dlsym-checked, dlvsym-checked intrinsics.
* Provide access to dlopen.Kaz Kylheku2017-04-251-0/+102
| | | | | | | | | | | | | | | | | | | | * configure: New test for dlopen. * lib.c (cptr_equal_op): Function renamed to cobj_equal_handle_op, to reflect what it's really doing; it is not specifically to cptr objects. Also changed from static to extern. (cptr_ops): Follow rename. * lib.h (cobj_equal_handle_op): Declared. * sysif.c (cptr_dl_destroy_op): New static function. (dlopen_wrap, dlclose_wrap, dlsym_wrap, dlvsym_wrap): New static functions. (sysif_init): Register new intrinsic functions dlopen, dlclose, dlsym, dlvsym. New variables rtld-lazy, rtld-now, rtld-global, rtld-local, rtld-nodelete, rtld-noload, rtld-deepbind.
* New path slot in stat struct.Kaz Kylheku2017-04-081-8/+11
| | | | | | | | | | | | | | | | | | | | | | | | * ftw.c (ftw_callback): Pass path to stat_to_struct function. * socket.c (path_s): Variable definition removed from here. (sock_load_init): Do not intern path symbol here. * sysif.c (path_s): Variable definition moved here. (stat_to_struct): New parameter, path. Store its argument in the path slot of the structure. (stat_impl): New parameter, path. Pass argument to stat_to_struct. (statp, statl): Pass path down to stat_impl. (statf): Pass nil down as path argument of stat_impl. (sysif_init): Intern path symbol here. Add path_s to the slot list in the make_struct_type call which creates the stat structure type. * sysif.h (path_s): Declared here now. (stat_to_struct): Declaration updated. * txr.1: Documented new slot of stat structure and behavior of stat, lstat and fstat w.r.t. this slot.
* Rename badly named default_bool_argKaz Kylheku2017-03-171-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * lib.h (default_bool_arg): Inline function renamed to default_null_arg. * eval.c (if_fun, pad, ginterate, giterate, range_star, range, constantp, macroexpand_1, macro_form_p, expand_with_free_refs, do_expand, eval_intrinsic, func_get_name, make_env_intrinsic): Follow rename. * arith.c (lognot): Likewise. * gc.c (gc_finalize): Likewise. * glob.c (glob_wrap): Likewise. * hash.c (group_reduce, gethash_n): Likewise. * lib.c (print, multi_sort, lazy_str, vector, iff, tok_str, split_str_keep, search_str, remove_if, val): Likewise. * match.c (match_fun): Likewise. * parser.c (lisp_parse_impl, regex_parse): Likewise. * rand.c (make_random_state): Likewise. * regex.c (read_until_match, search_regex, regex_compile): Likewise. * socket.c (sock_accept, sock_connect): Likewise. * stream.c (open_files_star, open_files, run, open_process, open_tail, get_string, record_adapter): Likewise. * struct.c (static_slot_ensure, static_slot_ens_rec, clear_struct, make_struct_type): Likewise. * sysif.c (exec_wrap, errno_wrap, cobj_ops_init): Likewise. * unwind.c (uw_capture_cont, uw_find_frames_impl): Likewise.
* umask: arg optional, return old value.Kaz Kylheku2017-03-151-3/+7
| | | | | | | | | | * sysif.c (umask_wrap): Return the prior value of the umask rather than the symbol t. If the argument is missing, then just return the current value without altering the umask. Unfortunately, this is implemented by temporarily changing the umask and then putting it back. (sysif_init): Change registration of umask to reflect optional argument.
* Check result of seteuid and setegid.Kaz Kylheku2017-02-221-6/+10
| | | | | | * sysif.c (repress_privilege): Bail if temporarily dropping user or group privilege (in setuid operation, of course) doesn't work.
* bugfix: wrongly strict stream class check in poll.Kaz Kylheku2017-02-051-1/+1
| | | | | | | * sysif.c (poll_wrap): Fix function not accepting streams of type stdio-stream or any other derived stream type. We must check that the object is subtyped from stream, not that it's exactly of type stream.
* Bump copyright year to 2017.Kaz Kylheku2017-01-231-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | * LICENSE, LICENSE-CYG, METALICENSE, Makefile, args.c, args.h, arith.c, arith.h, cadr.c, cadr.h, combi.c, combi.h, configure, debug.c, debug.h, eval.c, eval.h, filter.c, filter.h, ftw.c, ftw.h, gc.c, gc.h, glob.c, glob.h, hash.c, hash.h, jmp.S, lib.c, lib.h, lisplib.c, lisplib.h, match.c, match.h, parser.c, parser.h, parser.l, parser.y, rand.c, rand.h, regex.c, regex.h, signal.c, signal.h, stream.c, stream.h, struct.c, struct.h, sysif.c, sysif.h, syslog.c, syslog.h, termios.c, termios.h, txr.1, txr.c, txr.h, unwind.c, unwind.h, utf8.c, utf8.h, share/txr/stdlib/awk.tl, share/txr/stdlib/build.tl, share/txr/stdlib/cadr.tl, share/txr/stdlib/conv.tl, share/txr/stdlib/except.tl, share/txr/stdlib/getopts.tl, share/txr/stdlib/getput.tl, share/txr/stdlib/hash.tl, share/txr/stdlib/ifa.tl, share/txr/stdlib/package.tl, share/txr/stdlib/path-test.tl, share/txr/stdlib/place.tl, share/txr/stdlib/socket.tl, share/txr/stdlib/struct.tl, share/txr/stdlib/tagbody.tl, share/txr/stdlib/termios.tl, share/txr/stdlib/txr-case.tl, share/txr/stdlib/type.tl, share/txr/stdlib/with-resources.tl, share/txr/stdlib/with-stream.tl, share/txr/stdlib/yield.tl: Add 2017 to all copyright headers and strings.
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