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* Copyright year bump 2024.Kaz Kylheku2024-01-181-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * LICENSE, LICENSE-CYG, METALICENSE, Makefile, alloca.h, args.c, args.h, arith.c, arith.h, autoload.c, autoload.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, gzio.c, gzio.h, hash.c, hash.h, itypes.c, itypes.h, jmp.S, lib.c, lib.h, linenoise/linenoise.c, linenoise/linenoise.h, match.c, match.h, parser.c, parser.h, parser.l, parser.y, psquare.h, rand.c, rand.h, regex.c, regex.h, signal.c, signal.h, socket.c, socket.h, stdlib/arith-each.tl, stdlib/asm.tl, stdlib/awk.tl, stdlib/build.tl, stdlib/cadr.tl, stdlib/compiler.tl, stdlib/constfun.tl, stdlib/conv.tl, stdlib/copy-file.tl, stdlib/csort.tl, stdlib/debugger.tl, stdlib/defset.tl, stdlib/doloop.tl, stdlib/each-prod.tl, stdlib/error.tl, stdlib/except.tl, stdlib/expander-let.tl, stdlib/ffi.tl, stdlib/getopts.tl, stdlib/getput.tl, stdlib/glob.tl, stdlib/hash.tl, stdlib/ifa.tl, stdlib/keyparams.tl, stdlib/load-args.tl, stdlib/match.tl, stdlib/op.tl, stdlib/optimize.tl, stdlib/package.tl, stdlib/param.tl, stdlib/path-test.tl, stdlib/pic.tl, stdlib/place.tl, stdlib/pmac.tl, stdlib/quips.tl, stdlib/save-exe.tl, stdlib/socket.tl, stdlib/stream-wrap.tl, stdlib/struct.tl, stdlib/tagbody.tl, stdlib/termios.tl, stdlib/trace.tl, stdlib/txr-case.tl, stdlib/type.tl, stdlib/vm-param.tl, stdlib/with-resources.tl, stdlib/with-stream.tl, stdlib/yield.tl, stream.c, stream.h, struct.c, struct.h, strudel.c, strudel.h, sysif.c, sysif.h, syslog.c, syslog.h, termios.c, termios.h, time.c, time.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, y.tab.c.shipped: Copyright year bumped to 2024.
* rel-path: treat empty paths as relative.Kaz Kylheku2023-07-251-4/+4
| | | | | | | | | | | | | * stdlib/path-test.tl (path-volume): Don't return :abs for a path whose empty first component isn't followed by any more items. Otherwise we return :abs for a path formed by splitting the empty string, and then calls like (rel-path "" "a") complain about a mixture of absolute and relative. With this change, empty paths given to rel-path behave as if they were ".". * tests/018/rel-path.tl: New test cases.
* lib: address remaining unused variable warnings.Kaz Kylheku2023-03-221-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * stdlib/arith-each.tl (sys-arith-each): Remove :form param. * stdlib/awk.tl (awk-state :fini): Suppress unused warning in dohash form by using an uninterned symbol for this variable. This is a useful technique worth documenting. (awk-expander): Remove unused varaible in a predicate pattern. (awk-code-move-check): Lose the unused awc and aws-sym. (awk-mac-let): Don't pass the unused parameters to awk-code-move-check. * stdlib/conv.tl (conv-expand): Remove unused gensym. * stdlib/debugger.tl (fcall-frame loc, fcall-frame print-trace, expand-frame print-trace): Mark unused parameters ignored. * stdlib/defset.tl (defset-expander-simple): Remove unused parameter. (defset): Drop argument from defset-expander-simple call, and also fix unused warning in tree-case form. * stdlib/doc-lookup.tl (detached-run): Remove unused variable from a pattern matching predicate. It's not in the rightmost position so we have to revers the comparison. I will enhance the pattern matcher to support @nil in a predicate. (toplevel): Ignore a parameter of the not-implemented version of the open-url function. * stdlib/doloop.tl (expand-dooloop): Replace unused variable in a tree binding pattern with the t symbol. * stdlib/each-prod.tl (expand-each-prod*): Remove unused let variable. * stdlib/except.tl (expand-handle): Put else variable in tree bind pattern to use. * stdlib/getopts.tl (opt-desc (basic-type-p, cumul-type-p)): Replace unused catch-all variable in tree bind pattern with t symbol. (opt-processor parse-opts): Remove unused args argument. The object holds the args, prepared at construction time. (getopts, option-base getopts): Don't pass args to parse-opts. (define-option-struct): Replace unused treee pattern variable with t. * stdlib/ifa.tl (if-to-cond): Put catch-all else variable to use. * stdlib/keyparams.tl (param-expander): Mark unused parameter ignored. Replace unused variables in tree-case with t. * stdlib/match.tl (compile-struct-match, compile-predicate-match, compile-require-match, compile-as-match, compile-with-match, compile-or-match, compile-and-match, compile-not-match, compile-hash-match, compile-scan-match, compile-exprs-match): Address unused variables in mac-param-bind and tree-bind patterns. (match-case): Likewise, and also remove unused let variables. (while-match-case, while-true-match-case): Remove unused :env parameter. (expand-lambda-match): Remove unused let variable. (defun-match): Remove unused variable in tree-bind. (define-param-expander): Mark menv parameter ignored. Unused variables in tree-bind. (defmatch): Replace lambda variable with a gensym. (loosen, pat-len): Remove unused parameter. (sme, end): Fix calls to loosen and pat-len. (non-triv-pat-p): Mark parameter ignored in the temporary version of this function. (expand-quasi-match): Address unused variables in patterns, and remove unused gensyms. * stdlib/op.tl (op-rec-p): Unused variable in tree-case. (op-alpha-rename): Remove f parameter. (op-ignerr): Mark catch handler parameter ignored. (op-expand): Remove argument from calls to op-alpha-rename. * stdlib/path.test (if-windows, if-native-windows): The compiler complains here about the unused variable due to constant folding. We use the use function to indicate that the variable is not ignored, but used. * stdlib/pic.tl (expand-pic-num): Remove unused let variable. (pic): Remove unused :env parameter. * stdlib/place.tl (macroexpand-1-place): Ignore unused env parameter. (pset): Ignore some tree-bind variables. Not replacing them with t because their names help code readability. Lots of tricky code in place.tl. (shift): Replace unused variable with t in tree-case. (vecref, chr-str, ref, sub): Deal with unused expander parameters. (gethash): Deal with unused place parameter. (dwim): Remove unused env parameter, and deal with unused place parameters. (get-fun-getter-setter): Unused variables in tree-bind. (read-once, define-modify-macro): Remove unused gensyms. (placelet-1): Mark ignored a parameter of an update expander lambda. * stdlib/pmac.tl (macroexpand-params): Fix unused catch-all in tree-case. * stdlib/struct.tl (prune-missing-inits): Mark tree-bind unused variable ignored. (defstruct): Unused tree-case variable. (qref): Unused tree-case catch-all variables. (rslot): Unused parameter removed. (:delegate): Unused tree-case variables. * stdlib/tagbody.tl (tagbody): Drop unused :env param. Mark ignored the threaded-2 let variable, which cannot be removed because its init-form performs a needed side effect. * stdlib/trace.tl (trace-leave): Remove unused param. (trace): Don't pass argument to unused param of trace-leave. (untrace): Use gensym in dohash to suppress unused variable warning. * stdlib/type.tl (typecase-expander): Unused variable in tree-case. * stdlib/with-resources.tl (with-resources): Likewise. * stdlib/yield.tl (hlet-expand): Remove two unused locals. * tests/012/lambda.tl: Fix test cases that break the tests due to unused variable warnings. * tests/016/arith.tl: Add test case for each-prod*. At first I thought a bug was found in it but it turned out that the init-forms variable that was removed was really superfluous.
* Copyright year bump 2023.Kaz Kylheku2023-01-011-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * LICENSE, LICENSE-CYG, METALICENSE, Makefile, alloca.h, args.c, args.h, arith.c, arith.h, autoload.c, autoload.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, gzio.c, gzio.h, hash.c, hash.h, itypes.c, itypes.h, jmp.S, lex.yy.c.shipped, lib.c, lib.h, linenoise/linenoise.c, linenoise/linenoise.h, match.c, match.h, parser.c, parser.h, parser.l, parser.y, protsym.c, psquare.h, rand.c, rand.h, regex.c, regex.h, signal.c, signal.h, socket.c, socket.h, stdlib/arith-each.tl, stdlib/asm.tl, stdlib/awk.tl, stdlib/build.tl, stdlib/cadr.tl, stdlib/compiler.tl, stdlib/constfun.tl, stdlib/conv.tl, stdlib/copy-file.tl, stdlib/debugger.tl, stdlib/defset.tl, stdlib/doloop.tl, stdlib/each-prod.tl, stdlib/error.tl, stdlib/except.tl, stdlib/ffi.tl, stdlib/getopts.tl, stdlib/getput.tl, stdlib/hash.tl, stdlib/ifa.tl, stdlib/keyparams.tl, stdlib/match.tl, stdlib/op.tl, stdlib/optimize.tl, stdlib/package.tl, stdlib/param.tl, stdlib/path-test.tl, stdlib/pic.tl, stdlib/place.tl, stdlib/pmac.tl, stdlib/quips.tl, stdlib/save-exe.tl, stdlib/socket.tl, stdlib/stream-wrap.tl, stdlib/struct.tl, stdlib/tagbody.tl, stdlib/termios.tl, stdlib/trace.tl, stdlib/txr-case.tl, stdlib/type.tl, stdlib/vm-param.tl, stdlib/with-resources.tl, stdlib/with-stream.tl, stdlib/yield.tl, stream.c, stream.h, struct.c, struct.h, strudel.c, strudel.h, sysif.c, sysif.h, syslog.c, syslog.h, termios.c, termios.h, time.c, time.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, y.tab.c.shipped: Copyright year bumped to 2023.
* path-components-safe: proc tests only on Linux.Kaz Kylheku2022-07-301-18/+20
| | | | | | | * stdlib/path-test.tl (safe-abs-path): If (uname) doesn't report Linux, then define this function in a way that it always returns true. We do this by making the name an alias for the tf function.
* path-components-safe: check symlink link count.Kaz Kylheku2022-07-301-2/+3
| | | | | | * stdlib/path-test.tl (path-components-safe): Reject symlinks that have a link count not equal to one. This looks suspiciously like a hard link attack.
* path-components-safe: tighten /proc checkKaz Kylheku2022-07-301-15/+14
| | | | | | | | | | | | | | Attacks are possible via /proc/<pid>/fd/<n> involving a deleted file, whereby the link target changes from "/path/to/file" to "/path/to/file (deleted)", which can be perpetrated by a different user, not related to process <pid>, who has access to perform unlink("/path/to/file"). * stdlib/path-test.tl (safe-abs-path): Perform the pattern check regardless of effective user ID. * tests/018/path-safe.tl: Test cases adjusted.
* path-components-safe: handle consecutive slashes.Kaz Kylheku2022-07-301-4/+2
| | | | | * stdlib/path-test (path-components-safe): Remove empty components from split path.
* path-components-safe: repel /proc symlink attacksKaz Kylheku2022-07-291-17/+42
| | | | | | | | | | | | | | | | | | | | | | In a Linux system, it's possible for an unprivileged user to create a root symlink pointing to any directory, simply by changing to that directory and running a setuid executable like "su". That executable will get a process whose /proc/<pid> directory is root owned, and contains a symlink named cwd pointing to the current directory. Other symlinks under /proc look exploitable in this way. * stdlib/path-test.tl (safe-abs-path): New function. Here is where we are going to check for unsafe paths. We use some pattern matching to recognize various unsafe symlinks under /proc. (path-components-safe): Simplify code around recognition of absolute paths. When an absolute path is read from a symlink, remove the first empty component. Pass every absolute path through safe-abs-path to check for known unsafe paths. * tests/018/path-safe.tl: New tests.
* rel-path, path-equal: relocate.Kaz Kylheku2022-07-291-0/+94
| | | | | | | | * stdlib/copy-file.tl (path-simplify, path-split, path-volume, rel-path, path-equal): Remove from here. * stdlib/path-test.tl: (path-simplify, path-split, path-volume, rel-path, path-equal): Move to here.
* path-components-safe: refactoring.Kaz Kylheku2022-07-251-55/+37
| | | | | | | | * stdlib/path-test.tl (path-components-safe): Simplify code; forget trying to do anything on Windows: just return true. * txr.1: Document that path-components-safe is useless on Windows.
* New function: path-components-safe.Kaz Kylheku2022-07-251-0/+72
| | | | | | | | | | | | | | | | * autoload.c (path_test_set_entries): Autoload on path-components-safe symbol. * stdlib/path-test.tl (if-windows, if-native-windows): New system macros. (path-safe-sticky-dir): New system function. (path-components-safe): New function. * tests/018/path-safe.tl: New file.' * txr.1: Documented. * stdlib/doc-syms.tl: Updated.
* path-test: object trust must use effective UID.Kaz Kylheku2022-07-241-2/+2
| | | | | | | | | * stdlib/path-test.tl (path-private-to-me, path-strictly-private-to-me): Call (getuid) rather than (geteuid). We won't revert this behavior with the -C compat option because it's wrong/insecure. * txr.1: Updated.
* stdlib: missing blank line after copyright header.Kaz Kylheku2022-01-301-0/+1
| | | | | | | | | | | | | | | Commit 93edcde038209335122964432bd35dee0c2ecb04, made in August 2021, accidentally removed the blank line after the copyright header in most stdlib files. stdlib{asm.tl, awk.tl, build.tl, compiler.tl, copy-file.tl, debugger.tl, doloop.tl, each-prod.tl, error.tl, except.tl, ffi.tl, getopts.tl, getput.tl, hash.tl, ifa.tl, match.tl, op.tl, package.tl, param.tl, path-test.tl, pic.tl, place.tl, pmac.tl, quips.tl, save-exe.tl, socket.tl, stream-wrap.tl, tagbody.tl, termios.tl, trace.tl, txr-case.tl, type.tl, vm-param.tl, with-resources.tl, with-stream.tl, yield.tl}: Ensure there is a blank line after the copyright header.
* Copyright year bump 2022.Kaz Kylheku2022-01-111-1/+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, lex.yy.c.shipped, 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, psquare.h, rand.c, rand.h, regex.c, regex.h, signal.c, signal.h, socket.c, socket.h, stdlib/arith-each.tl, stdlib/asm.tl, stdlib/awk.tl, stdlib/build.tl, stdlib/cadr.tl, stdlib/compiler.tl, stdlib/constfun.tl, stdlib/conv.tl, stdlib/copy-file.tl, stdlib/debugger.tl, stdlib/defset.tl, stdlib/doloop.tl, stdlib/each-prod.tl, stdlib/error.tl, stdlib/except.tl, stdlib/ffi.tl, stdlib/getopts.tl, stdlib/getput.tl, stdlib/hash.tl, stdlib/ifa.tl, stdlib/keyparams.tl, stdlib/match.tl, stdlib/op.tl, stdlib/optimize.tl, stdlib/package.tl, stdlib/param.tl, stdlib/path-test.tl, stdlib/pic.tl, stdlib/place.tl, stdlib/pmac.tl, stdlib/quips.tl, stdlib/save-exe.tl, stdlib/socket.tl, stdlib/stream-wrap.tl, stdlib/struct.tl, stdlib/tagbody.tl, stdlib/termios.tl, stdlib/trace.tl, stdlib/txr-case.tl, stdlib/type.tl, stdlib/vm-param.tl, stdlib/with-resources.tl, stdlib/with-stream.tl, stdlib/yield.tl, stream.c, stream.h, struct.c, struct.h, strudel.c, strudel.h, sysif.c, sysif.h, syslog.c, syslog.h, termios.c, termios.h, time.c, time.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, y.tab.c.shipped: Copyright year bumped to 2022.
* path access tests: use real credentials.Kaz Kylheku2021-09-251-13/+13
| | | | | | | | | | | | | | | | | The various accessibility functions like path-writable-to-me should use the real credentials, the same way that the POSIX access function does. This makes them much more useful and secure in setuid programs, since they answer the question "does the underlying user, without these elevated privileges, have this access". * stdlib/path-test.tl (path-mine-p): Use getuid, not geteuid. (path-my-group-p): Use getgid, not getegid. (sys:path-access, path-private-to-me, path-strictly-private-to-me): Use getuid, getgid and rename euid variable to uid. * txr.1: Updated.
* path-search: rewrite in C with saner semantics.Kaz Kylheku2021-09-251-13/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | The new function: - just returns the name if it contains path name components. - returns nil if the name is "." or "..". - tests for existence only, not permission to execute. * lisplib.c (path_test_set_entries): Do not auto-load path-test module on the path-search symbol, since it is no longer implemented there. * stdlib/path-test.tl (path-search): Function removed. * stream.c (path_var_sep_char): New global variable. (path_search): New function. (detect_path_separators): Also set path_var_sep_char to semicolon on Cygnal. (stream-init): Register path-search intrinsic here now. * stream.h (path_var_sep_char, path_search): Declared. * tests/018/path-test.tl: New tests. * txr.1: Documentation revised for path-search.
* license: reformat to fit 80 columns.Kaz Kylheku2021-08-161-13/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Makefile, alloca.h, args.c, args.h, arith.c, arith.h, buf.c, buf.h, chksum.c, chksum.h, chksums/crc32.c, chksums/crc32.h, combi.c, combi.h, 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, rand.c, rand.h, regex.c, regex.h, signal.c, signal.h, socket.c, socket.h, stdlib/asm.tl, stdlib/awk.tl, stdlib/build.tl, stdlib/compiler.tl, stdlib/constfun.tl, stdlib/conv.tl, stdlib/copy-file.tl, stdlib/debugger.tl, stdlib/defset.tl, stdlib/doloop.tl, stdlib/each-prod.tl, stdlib/error.tl, stdlib/except.tl, stdlib/ffi.tl, stdlib/getopts.tl, stdlib/getput.tl, stdlib/hash.tl, stdlib/ifa.tl, stdlib/keyparams.tl, stdlib/match.tl, stdlib/op.tl, stdlib/optimize.tl, stdlib/package.tl, stdlib/param.tl, stdlib/path-test.tl, stdlib/pic.tl, stdlib/place.tl, stdlib/pmac.tl, stdlib/quips.tl, stdlib/save-exe.tl, stdlib/socket.tl, stdlib/stream-wrap.tl, stdlib/struct.tl, stdlib/tagbody.tl, stdlib/termios.tl, stdlib/trace.tl, stdlib/txr-case.tl, stdlib/type.tl, stdlib/vm-param.tl, stdlib/with-resources.tl, stdlib/with-stream.tl, stdlib/yield.tl, stream.c, stream.h, struct.c, struct.h, strudel.c, strudel.h, sysif.c, sysif.h, syslog.c, syslog.h, termios.c, termios.h, time.c, time.h, tree.c, tree.h, txr.c, txr.h, unwind.c, unwind.h, utf8.c, utf8.h, vm.c, vm.h, vmop.h: License reformatted. * lex.yy.c.shipped, y.tab.c.shipped, y.tab.h.shipped: Updated.
* New function: path-search.Kaz Kylheku2021-06-291-0/+13
| | | | | | | | | | | | * lisplib.c (path_test_set_entries): Autoload on path-search. * stdlib/path-test.tl (path-search): New function. * tests/018/path-test.tl: New file. * txr.1: Documented. * stdlib/doc-lookup.tl: Updated.
* file layout: moving share/txr/stdlib to stdlib.Kaz Kylheku2021-06-241-0/+187
This affects run-time also. Txr installations where the executable is not in directory ending in ${bindir} will look for stdlib rather than share/txr/stdlib, relative to the determined installation directory. * txr.c (sysroot_init): If we detect relative to the short name, or fall back on the program directory, use stdlib rather than share/txr/stdlib as the stdlib_path. * INSTALL: Update some installation notes not to refer to share/txr/stdlib but stdlib. * Makefile (STDLIB_SRCS): Refer to stdlib, not share/txr/stdlib. (clean): In unconfigured mode, remove the old share/txr/stdlib entirely. Remove .tlo files from stdlib. (install): Install lib materials from stdlib. * txr.1: Updated documentation under Deployment Directory Structure. * share/txr/stdlib/{asm,awk,build,cadr}.tl: Renamed to stdlib/{asm,awk,build,cadr}.tl. * share/txr/stdlib/{compiler,conv,copy-file,debugger}.tl: Renamed to stdlib/{compiler,conv,copy-file,debugger}.tl. * share/txr/stdlib/{defset,doc-lookup,doc-syms,doloop}.tl: Renamed to stdlib/{defset,doc-lookup,doc-syms,doloop}.tl. * share/txr/stdlib/{each-prod,error,except,ffi}.tl: Renamed to stdlib/{each-prod,error,except,ffi}.tl. * share/txr/stdlib/{getopts,getput,hash,ifa}.tl: Renamed to stdlib/{getopts,getput,hash,ifa}.tl. * share/txr/stdlib/{keyparams,match,op,optimize}.tl: Renamed to stdlib/{keyparams,match,op,optimize}.tl. * share/txr/stdlib/{package,param,path-test,pic}.tl: Renamed to stdlib/{package,param,path-test,pic}.tl. * share/txr/stdlib/{place,pmac,quips,save-exe}.tl: Renamed to stdlib/{place,pmac,quips,save-exe}.tl. * share/txr/stdlib/{socket,stream-wrap,struct,tagbody}.tl: Renamed to stdlib/{socket,stream-wrap,struct,tagbody}.tl. * share/txr/stdlib/{termios,trace,txr-case,type}.tl: Renamed to stdlib/{termios,trace,txr-case,type}.tl. * share/txr/stdlib/{ver,vm-param,with-resources,with-stream}.tl: Renamed to stdlib/{ver,vm-param,with-resources,with-stream}.tl. * share/txr/stdlib/yield.tl: Renamed to stdlib/yield.tl. * share/txr/stdlib/{txr-case,ver}.txr: Renamed to stdlib/{txr-case,ver}.txr. * gencadr.txr: Update to stdlib/place.tl. * genman.txr: Update to stdlib/cadr.tl.