ChangeLog 313 KB
Newer Older
1 2
2011-10-08  Eli Zaretskii  <eliz@gnu.org>

3 4
	* xdisp.c (hscroll_window_tree): Support hscroll in right-to-left
	lines.
5 6
	(set_cursor_from_row): Fix cursor positioning in mixed L2R+R2L
	lines that are hscrolled on the left.
7

8 9 10
	* dispnew.c (buffer_posn_from_coords): Account for a possible
	presence of header-line.  (Bug#4426)

11 12 13 14 15
2011-10-07  Stefan Monnier  <monnier@iro.umontreal.ca>

	* buffer.c (syms_of_buffer) <enable-multibyte-characters>: Don't
	advertise functionality which we discourage or doesn't work.

16 17 18 19 20 21 22 23 24 25 26 27
2011-10-07  Paul Eggert  <eggert@cs.ucla.edu>

	* alloc.c (GC_LISP_OBJECT_ALIGNMENT): Use offsetof, not __alignof__
	or sizeof.  __alignof__ gives the wrong answer on Fedora x86-64
	with GCC 4.6.1 when configured with CC='gcc -m32' --with-wide-int;
	this makes Emacs dump core during garbage collection on rare
	occasions.  sizeof is obviously inferior to offsetof here, so
	stick with offsetof.
	(GC_POINTER_ALIGNMENT): New macro.
	(mark_memory): Omit 3rd (offset) arg; caller changed.
	Don't assume EMACS_INT alignment is the same as pointer alignment.

28 29 30 31 32 33
2011-10-03  Stefan Monnier  <monnier@iro.umontreal.ca>

	* keyboard.c (read_key_sequence_remapped): New var.
	(read_key_sequence): Compute remapping in the right buffer.
	(command_loop_1): Use read_key_sequence's remapping directly.

34 35
2011-10-02  Stefan Monnier  <monnier@iro.umontreal.ca>

36 37 38 39
	* dired.c (file_name_completion): Don't expand file name.
	(Ffile_name_completion, Ffile_name_all_completions): Expand file name
	before checking file name handler.

40 41 42
	* minibuf.c (Finternal_complete_buffer): Only show internal buffers if
	they've been requested explicitly (bug#9591).

Chong Yidong's avatar
Chong Yidong committed
43
2011-10-01  Andreas Schwab  <schwab@linux-m68k.org>
44 45 46 47 48

	* keymap.c (Fsingle_key_description): Use make_specified_string
	instead of build_string to build string from push_key_description.
	(Bug#5193)

49 50
2011-09-30  Paul Eggert  <eggert@cs.ucla.edu>

51 52 53 54 55 56 57 58
	* buffer.h (struct buffer): Use time_t, not int, for a time stamp.
	This fixes a Y2038 bug on 64-bit hosts.
	* buffer.c (reset_buffer):
	* fileio.c (Fdo_auto_save, Fset_buffer_auto_saved)
	(Fclear_buffer_auto_save_failure):
	Use 0, not -1, to represent an unset failure time, since time_t
	might not be signed.

59 60 61 62 63 64 65 66 67 68 69 70 71 72
	Remove dependency on glibc malloc internals.
	* alloc.c (XMALLOC_OVERRUN_CHECK_OVERHEAD, XMALLOC_OVERRUN_CHECK_SIZE):
	Move back here from lisp.h, but with their new implementations.
	(XMALLOC_BASE_ALIGNMENT, COMMON_MULTIPLE, XMALLOC_HEADER_ALIGNMENT)
	(XMALLOC_OVERRUN_SIZE_SIZE): Move these new lisp.h macros here.
	* charset.c (charset_table_init): New static var.
	(syms_of_charset): Use it instead of xmalloc.  This removes a
	dependency on glibc malloc internals.  See Eli Zaretskii's comment in
	<http://lists.gnu.org/archive/html/emacs-devel/2011-09/msg00815.html>.
	* lisp.h (XMALLOC_OVERRUN_CHECK_OVERHEAD, XMALLOC_OVERRUN_CHECK_SIZE):
	Move back to alloc.c.
	(XMALLOC_BASE_ALIGNMENT, COMMON_MULTIPLE, XMALLOC_HEADER_ALIGNMENT)
	(XMALLOC_OVERRUN_SIZE_SIZE): Move to alloc.c.

73 74 75 76 77 78
2011-09-30  Jan Djärv  <jan.h.d@swipnet.se>

	* nsterm.m (windowDidResize): Call x_set_window_size only when
	ns_in_resize is true.  Otherwise set pixelwidth/height and
	call change_frame_size (Bug#9628).

79 80
2011-09-30  Paul Eggert  <eggert@cs.ucla.edu>

81 82 83 84
	Port --enable-checking=all to Fedora 14 x86-64.
	* charset.c (syms_of_charset): Also account for glibc malloc's
	internal overhead when calculating the initial malloc maximum.

85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102
	Port --enable-checking=all to Fedora 14 x86.
	* alloc.c (XMALLOC_OVERRUN_CHECK_OVERHEAD, XMALLOC_OVERRUN_CHECK_SIZE):
	Move to lisp.h.
	(xmalloc_put_size, xmalloc_get_size, overrun_check_malloc)
	(overrun_check_realloc, overrun_check_free):
	Use XMALLOC_OVERRUN_SIZE_SIZE, not sizeof (size_t).
	That way, xmalloc returns a properly-aligned pointer even if
	XMALLOC_OVERRUN_CHECK is defined.  The old debugging code happened
	to align OK on typical 64-bit hosts, but not on Fedora 14 x86.
	* charset.c (syms_of_charset): Take XMALLOC_OVERRUN_CHECK_OVERHEAD
	into account when calculating the initial malloc maximum.
	* lisp.h (XMALLOC_OVERRUN_CHECK_OVERHEAD, XMALLOC_OVERRUN_CHECK_SIZE):
	Move here from alloc.c, so that charset.c can use it too.
	Properly align; the old code wasn't right for common 32-bit hosts
	when configured with --enable-checking=all.
	(XMALLOC_BASE_ALIGNMENT, COMMON_MULTIPLE, XMALLOC_HEADER_ALIGNMENT)
	(XMALLOC_OVERRUN_SIZE_SIZE): New macros.

Eli Zaretskii's avatar
Eli Zaretskii committed
103 104
2011-09-29  Eli Zaretskii  <eliz@gnu.org>

105
	* sysdep.c (snprintf) [!EOVERFLOW]: If EOVERFLOW is not defined,
Eli Zaretskii's avatar
Eli Zaretskii committed
106 107
	use EDOM.

108 109 110 111 112 113 114 115 116
2011-09-28  Eli Zaretskii  <eliz@gnu.org>

	* xdisp.c (compute_display_string_end): If there's no display
	string at CHARPOS, return -1.

	* bidi.c (bidi_fetch_char): When compute_display_string_end
	returns a negative value, treat the character as a normal
	character not covered by a display string.  (Bug#9624)

Juanma Barranquero's avatar
Juanma Barranquero committed
117 118 119 120
2011-09-28  Juanma Barranquero  <lekktu@gmail.com>

	* lread.c (Fread_from_string): Fix typo in docstring.

121 122 123 124 125
2011-09-27  Eli Zaretskii  <eliz@gnu.org>

	* xdisp.c (handle_invisible_prop): If invisible text ends on a
	newline, reseat the iterator instead of bidi-iterating there one
	character at a time.  (Bug#9610)
126 127
	(BUFFER_POS_REACHED_P, move_it_in_display_line_to): Bail when past
	TO_CHARPOS if the bidi iterator is at base embedding level.
128

129 130 131 132 133
2011-09-27  Andreas Schwab  <schwab@linux-m68k.org>

	* lread.c (readevalloop): Use correct code for NBSP.
	(read1): Likewise.  (Bug#9608)

134 135 136 137 138
2011-09-25  Michael Albinus  <michael.albinus@gmx.de>

	* dbusbind.c (Fdbus_register_signal): When service is not
	registered, use nil in Vdbus_registered_objects_table.  (Bug#9581)

139 140 141 142
2011-09-25  Glenn Morris  <rgm@gnu.org>

	* buffer.c (truncate-lines): Doc fix.

143 144 145 146 147
2011-09-24  Chong Yidong  <cyd@stupidchicken.com>

	* window.c (Fwindow_prev_buffers, Fset_window_prev_buffers)
	(Fset_window_next_buffers): Doc fix.

148 149 150 151
2011-09-24  Glenn Morris  <rgm@gnu.org>

	* minibuf.c (read_minibuf): Disable line truncation.  (Bug#5715)

152 153
2011-09-24  Paul Eggert  <eggert@cs.ucla.edu>

154 155
	Fix minor problems found by static checking.
	* xdisp.c (string_from_display_spec): Don't assume vecsize fits in int.
156 157
	* indent.c (Fvertical_motion): Fix == vs = typo.

158 159
2011-09-24  Eli Zaretskii  <eliz@gnu.org>

160 161
	* dispnew.c (syms_of_display) <redisplay-dont-pause>:
	Default value is now t.  Doc fix.
162

163
	* indent.c (Fvertical_motion): Compute and apply the overshoot
164
	logic when moving up, not only when moving down.  Fix the
165
	confusing name and values of the it_overshoot_expected variable;
166
	logic changes accordingly.  (Bug#9254) (Bug#9549)
167 168 169 170 171 172

	* xdisp.c (pos_visible_p): Produce correct pixel coordinates when
	CHARPOS is covered by a display string which includes newlines.
	(move_it_vertically_backward): Avoid inflooping when START_CHARPOS
	is covered by a display string with embedded newlines.

173 174 175 176
2011-09-24  Michael Albinus  <michael.albinus@gmx.de>

	* dbusbind.c (Fdbus_register_signal): Add match rule to
	Vdbus_registered_objects_table.  (Bug#9581)
177 178
	(Fdbus_register_method, Vdbus_registered_objects_table):
	Fix docstring.
179

180 181
2011-09-24  Jim Meyering  <meyering@redhat.com>

182
	do not ignore write error for any output size
183 184 185 186 187 188 189 190 191 192 193 194
	The previous change was incomplete.
	While it makes emacs --batch detect the vast majority of stdout
	write failures, errors were still ignored whenever the output size is
	k * (BUFSIZ+1) - 4.  E.g., on a system with BUFSIZ of 4096,
	  $ emacs --batch --eval '(print (format "%4093d" 0))' > /dev/full \
	      && echo FAIL: ignored write error
	  FAIL: ignored write error
	  $ emacs --batch --eval '(print (format "%20481d" 0))' > /dev/full \
	      && echo FAIL: ignored write error
	  FAIL: ignored write error
	* emacs.c (Fkill_emacs): Also test ferror.  (Bug#9574)

195 196 197 198 199
2011-09-23  Andreas Schwab  <schwab@linux-m68k.org>

	* emacs.c (Fkill_emacs): In noninteractive mode exit
	non-successfully if a write error occurred on stdout.  (Bug#9574)

200 201 202 203 204 205 206 207
2011-09-21  Eli Zaretskii  <eliz@gnu.org>

	* xdisp.c (pop_it): Allow it->object that is a cons cell to pass
	the xassert test.

	* dispextern.h (struct it): Update the comment documenting what
	can it->OBJECT be.

208 209 210 211 212 213 214
2011-09-20  Eli Zaretskii  <eliz@gnu.org>

	* xdisp.c (set_cursor_from_row): If the row ends in a newline from
	a display string, extend search for cursor position to end of row.
	(find_row_edges): If the row ends in a newline from a display
	string, increment its MATRIX_ROW_END_CHARPOS by one.  (Bug#9549)
	Handle the case of a display string with multiple newlines.
215 216 217
	(Fcurrent_bidi_paragraph_direction): Fix search for previous
	non-empty line.  Fixes confusing cursor motion with arrow keys at
	the beginning of a line that starts with whitespace.
218

219 220 221 222 223
2011-09-19  Lars Magne Ingebrigtsen  <larsi@gnus.org>

	* lread.c (Fread_from_string): Document what FINAL-STRING-INDEX is
	(bug#9493).

224 225 226 227 228
2011-09-18  Chong Yidong  <cyd@stupidchicken.com>

	* xfns.c (Fx_create_frame): Handle the bitmapIcon resource as
	boolean (Bug#9154).

Eli Zaretskii's avatar
Eli Zaretskii committed
229 230 231 232 233 234 235
2011-09-18  Eli Zaretskii  <eliz@gnu.org>

	* xdisp.c (display_line): Record maximum and minimum buffer
	positions even if no glyphs were produced (e.g., by a zero-width
	stretch).  Fixes bug#9530 on a TTY.  Under word-wrap, don't record
	buffer positions that will be removed from the glyph row because
	they don't fit.
236 237 238
	(produce_stretch_glyph): Fix a bug in :align-to on a TTY when the
	column is beyond frame width: don't subtract 1 "pixel" when
	computing width of the stretch.
239 240 241
	(reseat_at_next_visible_line_start): Undo the change made on
	2011-09-17 that saved paragraph information and restored it after
	the call to `reseat'.  (Bug#9545)
Eli Zaretskii's avatar
Eli Zaretskii committed
242

243
2011-09-18  YAMAMOTO Mitsuharu  <mituharu@math.s.chiba-u.ac.jp>
244 245 246 247

	* xdisp.c (expose_window): Save original value of phys_cursor_on_p
	and turn window cursor on if cleared (Bug#9415).

248
2011-09-18  Andreas Schwab  <schwab@linux-m68k.org>
249 250 251 252

	* search.c (boyer_moore): Take unibyte characters from pattern
	literally.  (Bug#9458)

253 254 255 256
2011-09-18  Eli Zaretskii  <eliz@gnu.org>

	* xdisp.c (reseat_at_next_visible_line_start): Fix last change.

257 258
2011-09-18  Paul Eggert  <eggert@cs.ucla.edu>

259 260 261 262
	Fix minor problem found by static checking.
	* xdisp.c (reseat_at_next_visible_line_start): Mark locals as
	initialized, to pacify gcc -Wuninitialized.

263 264 265 266 267
	* fileio.c: Report proper errno when syscall falls.
	(Finsert_file_contents): Save and restore errno,
	so that report_file_error outputs the correct diagnostic.
	(Fwrite_region) [CLASH_DETECTION]: Likewise.

268 269 270 271
2011-09-18  Eli Zaretskii  <eliz@gnu.org>

	* .gdbinit (pgx): Fix references to fields of `struct glyph'.

272 273 274 275 276
2011-09-17  Eli Zaretskii  <eliz@gnu.org>

	* xdisp.c (produce_stretch_glyph): Another fix for changes made on
	2011-08-30T17:32:44Z!eliz@gnu.org.  (Bug#9530)

277 278
2011-09-17  Eli Zaretskii  <eliz@gnu.org>

279 280 281 282 283 284 285 286 287 288 289
	* xdisp.c (reseat_at_next_visible_line_start): Keep information
	about the current paragraph and restore it after the call to
	reseat.

	* bidi.c (MAX_PARAGRAPH_SEARCH): New macro.
	(bidi_find_paragraph_start): Search back for paragraph beginning
	at most MAX_PARAGRAPH_SEARCH lines; if not found, return BEGV_BYTE.
	(bidi_move_to_visually_next): Only trigger paragraph-related
	computations when the last character is a newline or at EOB, not
	just any NEUTRAL_B.  (Bug#9470)

290 291 292
	* xdisp.c (set_cursor_from_row): Don't invoke special treatment of
	truncated lines if point is covered by a display string.  (Bug#9524)

293 294 295 296 297 298 299 300
2011-09-16  Paul Eggert  <eggert@cs.ucla.edu>

	* xselect.c: Relax test for outgoing X longs (Bug#9498).
	(cons_to_x_long): New function.
	(lisp_data_to_selection_data): Use it.  Correct the test for
	short-versus-long data; it was negated.  Break out of vector
	loop, for efficiency, when a long datum is discovered.

301 302 303 304
2011-09-16  Stefan Monnier  <monnier@iro.umontreal.ca>

	* eval.c (Fquote): Document its non-consing behavior (bug#9482).

305 306 307 308 309
2011-09-16  Eli Zaretskii  <eliz@gnu.org>

	* image.c (tiff_handler): Work around a bug in MinGW GCC 3.x (see
	GCC PR/17406) by declaring this function with external scope.

310 311 312 313 314
2011-09-15  Paul Eggert  <eggert@cs.ucla.edu>

	* editfns.c (Fformat): Fix bug in text-property fix (Bug#9514).
	Don't mishandle (length (format "%%")) and (format "%4000s%%" "").

315 316 317 318
2011-09-15  Andreas Schwab  <schwab@linux-m68k.org>

	* editfns.c (Fformat): Correctly handle text properties on "%%".

319 320 321 322 323 324 325 326 327 328
2011-09-15  Eli Zaretskii  <eliz@gnu.org>

	* xterm.c (x_draw_composite_glyph_string_foreground):
	* w32term.c (x_draw_composite_glyph_string_foreground):
	* term.c (encode_terminal_code):
	* composite.c (composition_update_it, get_composition_id):
	* xdisp.c (get_next_display_element)
	(fill_composite_glyph_string): Add comments about special meaning
	of TAB characters in a composition.

329 330 331
2011-09-15  Paul Eggert  <eggert@cs.ucla.edu>

	* editfns.c (Fformat): Fix off-by-1 bug for "%%b" (Bug#9514).
Paul Eggert's avatar
Paul Eggert committed
332 333
	This occurs when processing a multibyte format.
	Problem reported by Wolfgang Jenker.
334

335 336 337 338 339
2011-09-15  Johan Bockgård  <bojohan@gnu.org>

	* xdisp.c (try_cursor_movement): Only check for exact match if
	cursor hpos found by set_cursor_from_row is valid.  (Bug#9495)

Paul Eggert's avatar
Paul Eggert committed
340 341 342 343 344 345 346 347 348 349
2011-09-14  Paul Eggert  <eggert@cs.ucla.edu>

	Remove unused external symbols.
	* dispextern.h (calc_pixel_width_or_height): Remove decl.
	* xdisp.c (calc_pixel_width_or_height): Now static.
	* doprnt.c (exprintf) [! (HAVE_X_WINDOWS && USE_X_TOOLKIT)]: Remove.
	* indent.c (check_display_width):
	* w32term.c: Fix comment to match code.
	* xterm.c, xterm.h (x_catching_errors): Remove.

350 351 352 353 354 355 356 357 358 359
2011-09-14  Paul Eggert  <eggert@cs.ucla.edu>

	* xselect.c: Use signed conversions more consistently (Bug#9498).
	(selection_data_to_lisp_data): Assume incoming selection data are
	signed integers, not unsigned.  This is to be consistent with
	outgoing selection data, which was modified to use signed integers
	in as part of the fix to Bug#9196 in response to Jan D.'s comment
	in <http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9196#32> that X11
	expects long, not unsigned long.

360 361 362 363 364 365
2011-09-14  Eli Zaretskii  <eliz@gnu.org>

	* xdisp.c (try_window_reusing_current_matrix): Fix incorrect
	computation of loop end.  Reported by Johan Bockgård
	<bojohan@gnu.org>.

366 367 368 369
2011-09-13  Chong Yidong  <cyd@stupidchicken.com>

	* frame.c (Fother_visible_frames_p): Function deleted.

370 371 372 373 374
2011-09-12  Eli Zaretskii  <eliz@gnu.org>

	* indent.c (compute_motion): Process display vector front to back
	rather than the other way around.  (Bug#2496)

375 376 377 378
2011-09-12  Stefan Monnier  <monnier@iro.umontreal.ca>

	* fileio.c (Finsert_file_contents): Don't assume beg_offset is 0.

379 380 381 382
2011-09-11  Chong Yidong  <cyd@stupidchicken.com>

	* minibuf.c (Fread_from_minibuffer): Doc fix.

383 384 385 386 387
2011-09-11  Eli Zaretskii  <eliz@gnu.org>

	* xdisp.c (produce_stretch_glyph): Fix a typo made in changes from
	2011-08-30T17:32:44Z!eliz@gnu.org.  (Bug#9475)

388 389 390 391 392
2011-09-11  Lars Magne Ingebrigtsen  <larsi@gnus.org>

	* fileio.c (Fvisited_file_modtime): Document `(-1 65535)' as a
	value for non-existent files.

393 394 395 396 397 398 399 400
2011-09-11  Eli Zaretskii  <eliz@gnu.org>

	* fileio.c (Finsert_file_contents): If the file cannot be opened,
	set its "size" to -1.  This will set the modtime_size field of
	the corresponding buffer to -1, which is what
	verify-visited-file-modtime expects for files that do not exist.
	(Bug#9139)

401 402 403 404 405 406 407 408 409
2011-09-11  Paul Eggert  <eggert@cs.ucla.edu>

	* keymap.h (KEY_DESCRIPTION_SIZE, push_key_description): Move decls
	here ...
	* lisp.h: ... from here.  push_key_description is no longer
	defined in keyboard.c, so its declaration should not be in
	lisp.h's "Defined in keyboard.c" section, and KEY_DESCRIPTION_SIZE
	logically belongs with push_key_description.

410 411 412 413 414 415
2011-09-10  Paul Eggert  <eggert@cs.ucla.edu>

	* buffer.h: Include <sys/types.h> instead of <time.h>.
	Otherwise, off_t wasn't defined on FreeBSD 9.0-BETA2 i386.
	Problem reported by Herbert J. Skuhra.

416 417 418 419 420
2011-09-10  Lars Magne Ingebrigtsen  <larsi@gnus.org>

	* xml.c (parse_region): Make the parsing work for
	non-comment-starting XML files again (bug#9144).

421 422 423 424 425
2011-09-10  Andreas Schwab  <schwab@linux-m68k.org>

	* image.c (gif_load): Fix calculation of bottom and right corner.
	(Bug#9468)

426 427 428 429 430
2011-09-10  Eli Zaretskii  <eliz@gnu.org>

	* xdisp.c (MAX_DISP_SCAN): Decrease to 250.  Prevents sluggish
	redisplay in small windows.

431 432 433 434
2011-09-09  Eli Zaretskii  <eliz@gnu.org>

	* frame.c (x_report_frame_params): Cast to avoid compiler warnings.

435 436 437 438 439
2011-09-08  Martin Rudalics  <rudalics@gmx.at>

	* window.c (Fset_window_prev_buffers, Fset_window_next_buffers):
	Operate on live windows only.

440 441 442 443
2011-09-08  Juanma Barranquero  <lekktu@gmail.com>

	* emacs.c (my_heap_start): #ifdef to avoid warnings when unused.

444 445 446 447 448
2011-09-07  Eli Zaretskii  <eliz@gnu.org>

	* xdisp.c (move_it_in_display_line_to): Call RESTORE_IT on ppos_it
	only under bidi iteration.

449 450 451 452
2011-09-07  Jan Djärv  <jan.h.d@swipnet.se>

	* gtkutil.c (xg_make_tool_item): Insert comment about eventbox.

453 454 455 456 457 458 459 460 461 462 463 464 465 466
2011-09-06  Paul Eggert  <eggert@cs.ucla.edu>

	isnan: Fix porting problem to Solaris 10 with bundled gcc.
	Without this fix, the command to link temacs failed due to an
	undefined symbol __builtin_isnan.  This is because
	/usr/include/iso/math_c99.h #defines isnan(x) to
	__builtin_isnan(x), but the bundled gcc, which identifies itself
	as gcc 3.4.3 (csl-sol210-3_4-branch+sol_rpath), does not have
	a __builtin_isnan.
	* floatfns.c (isnan): #undef, and then #define to a clone of
	what's in data.c.
	(Fisnan): Always define, since it's always available now.
	(syms_of_floatfns): Always define isnan at the Lisp level.

Paul Eggert's avatar
Paul Eggert committed
467
2011-09-06  Paul Eggert  <eggert@cs.ucla.edu>
Paul Eggert's avatar
Paul Eggert committed
468 469 470

	* Makefile.in (gl-stamp): move-if-change now in build-aux (Bug#9169).

Paul Eggert's avatar
Paul Eggert committed
471
2011-09-06  Paul Eggert  <eggert@cs.ucla.edu>
472

Paul Eggert's avatar
Paul Eggert committed
473
	* fileio.c: Fix bugs with large file offsets (Bug#9428).
474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489
	The previous code assumed that file offsets (off_t values) fit in
	EMACS_INT variables, which is not true on typical 32-bit hosts.
	The code messed up by falsely reporting buffer overflow in cases
	such as (insert-file-contents "big" nil 1 2) into an empty buffer
	when "big" contains more than 2**29 bytes, even though this
	inserts just one byte and does not overflow the buffer.
	(Finsert_file_contents): Store file offsets as off_t
	values, not as EMACS_INT values.  Check for overflow when
	converting between EMACS_INT and off_t.  When checking for
	buffer overflow or for overlap, take the offsets into account.
	Don't use EMACS_INT for small values where int suffices.
	When checking for overlap, fix a typo: ZV was used where
	ZV_BYTE was intended.
	(Fwrite_region): Don't assume off_t fits into 'long'.
	* buffer.h (struct buffer.modtime_size): Now off_t, not EMACS_INT.

490 491 492 493
2011-09-05  Michael Albinus  <michael.albinus@gmx.de>

	* dbusbind.c (xd_signature_cat): Rename from signature_cat.

Paul Eggert's avatar
Paul Eggert committed
494
2011-09-04  Paul Eggert  <eggert@cs.ucla.edu>
Paul Eggert's avatar
Paul Eggert committed
495

Paul Eggert's avatar
Paul Eggert committed
496
	sprintf-related integer and memory overflow issues (Bug#9412).
497 498

	* doprnt.c (doprnt): Support printing ptrdiff_t and intmax_t values.
499
	(esprintf, exprintf, evxprintf): New functions.
500 501 502 503 504 505 506 507 508 509 510 511 512
	* keyboard.c (command_loop_level): Now EMACS_INT, not int.
	(cmd_error): kbd macro iterations count is now EMACS_INT, not int.
	(modify_event_symbol): Do not assume that the length of
	name_alist_or_stem is safe to alloca and fits in int.
	(Fexecute_extended_command): Likewise for function name and binding.
	(Frecursion_depth): Wrap around reliably on integer overflow.
	* keymap.c (push_key_description): First arg is now EMACS_INT, not int,
	since some callers pass EMACS_INT values.
	(Fsingle_key_description): Don't crash if symbol name contains more
	than MAX_ALLOCA bytes.
	* minibuf.c (minibuf_level): Now EMACS_INT, not int.
	(get_minibuffer): Arg is now EMACS_INT, not int.
	* lisp.h (get_minibuffer, push_key_description): Reflect API changes.
513
	(esprintf, exprintf, evxprintf): New decls.
514 515
	* window.h (command_loop_level, minibuf_level): Reflect API changes.

516 517
	* dbusbind.c (signature_cat): New function.
	(xd_signature, Fdbus_register_signal):
518 519
	Do not overrun buffer; instead, report string overflow.

520 521 522
	* dispnew.c (add_window_display_history): Don't overrun buffer.
	Truncate instead; this is OK since it's just a log.

523 524 525 526
	* editfns.c (Fcurrent_time_zone): Don't overrun buffer
	even if the time zone offset is outlandishly large.
	Don't mishandle offset == INT_MIN.

527 528 529
	* emacs.c (main) [NS_IMPL_COCOA]: Don't overrun buffer
	when creating daemon; the previous buffer-overflow check was incorrect.

530 531 532
	* eval.c (verror): Simplify by rewriting in terms of evxprintf,
	which has the guts of the old verror function.

533 534 535
	* filelock.c (lock_file_1, lock_file): Don't blindly alloca long name;
	use SAFE_ALLOCA instead.  Use esprintf to avoid int-overflow issues.

536 537
	* font.c: Include <float.h>, for DBL_MAX_10_EXP.
	(font_unparse_xlfd): Don't blindly alloca long strings.
538
	Don't assume XINT result fits in int, or that XFLOAT_DATA * 10
539
	fits in int, when using sprintf.  Use single snprintf to count
540 541 542 543 544 545
	length of string rather than counting it via multiple sprintfs;
	that's simpler and more reliable.
	(font_unparse_fcname): Use it to avoid sprintf buffer overrun.
	(generate_otf_features) [0 && HAVE_LIBOTF]: Use esprintf, not
	sprintf, in case result does not fit in int.

546 547 548
	* fontset.c (num_auto_fontsets): Now printmax_t, not int.
	(fontset_from_font): Print it.

549 550 551 552 553 554 555 556 557 558
	* frame.c (tty_frame_count): Now printmax_t, not int.
	(make_terminal_frame, set_term_frame_name): Print it.
	(x_report_frame_params): In X, window IDs are unsigned long,
	not signed long, so print them as unsigned.
	(validate_x_resource_name): Check for implausibly long names,
	and don't assume name length fits in 'int'.
	(x_get_resource_string): Don't blindly alloca invocation name;
	use SAFE_ALLOCA.  Use esprintf, not sprintf, in case result does
	not fit in int.

559 560
	* gtkutil.c: Include <float.h>, for DBL_MAX_10_EXP.
	(xg_check_special_colors, xg_set_geometry):
561 562
	Make sprintf buffers a bit bigger, to avoid potential buffer overrun.

563 564 565
	* lread.c (dir_warning): Don't blindly alloca buffer; use SAFE_ALLOCA.
	Use esprintf, not sprintf, in case result does not fit in int.

566 567 568 569 570 571
	* macros.c (executing_kbd_macro_iterations): Now EMACS_INT, not int.
	(Fend_kbd_macro): Don't mishandle MOST_NEGATIVE_FIXNUM by treating
	it as a large positive number.
	(Fexecute_kbd_macro): Don't assume repeat count fits in int.
	* macros.h (executing_kbd_macro_iterations): Now EMACS_INT, not int.

572 573 574
	* nsterm.m ((NSSize)windowWillResize): Use esprintf, not sprintf,
	in case result does not fit in int.

575 576 577 578 579 580 581 582
	* print.c (float_to_string): Detect width overflow more reliably.
	(print_object): Make sprintf buffer a bit bigger, to avoid potential
	buffer overrun.  Don't assume list length fits in 'int'.  Treat
	print length of 0 as 0, not as infinity; to be consistent with other
	uses of print length in this function.  Don't overflow print length
	index.  Don't assume hash table size fits in 'long', or that
	vectorlike size fits in 'unsigned long'.

583 584 585
	* process.c (make_process): Use printmax_t, not int, to format
	process-name gensyms.

586 587
	* sysdep.c (snprintf) [! HAVE_SNPRINTF]: New function.

588 589 590
	* term.c (produce_glyphless_glyph): Make sprintf buffer a bit bigger
	to avoid potential buffer overrun.

591 592 593
	* xfaces.c (x_update_menu_appearance): Don't overrun buffer
	if X resource line is longer than 512 bytes.

594 595 596
	* xfns.c (x_window): Make sprintf buffer a bit bigger
	to avoid potential buffer overrun.

597 598
	* xterm.c (x_io_error_quitter): Don't overrun sprintf buffer.

599 600
	* xterm.h (x_check_errors): Add ATTRIBUTE_FORMAT_PRINTF.

601 602
2011-09-04  Paul Eggert  <eggert@cs.ucla.edu>

603
	Integer overflow fixes for scrolling, etc.
Paul Eggert's avatar
Paul Eggert committed
604 605
	Without these, Emacs silently mishandles large integers sometimes.
	For example, "C-u 4294967297 M-x recenter" was treated as if
606 607
	it were "C-u 1 M-x recenter" on a typical 64-bit host.

Paul Eggert's avatar
Paul Eggert committed
608 609
	* xdisp.c (try_window_id): Check Emacs fixnum range before
	converting to 'int'.
Paul Eggert's avatar
Paul Eggert committed
610

Paul Eggert's avatar
Paul Eggert committed
611
	* window.c (window_scroll_line_based, Frecenter):
612 613 614 615 616 617 618 619
	Check that an Emacs fixnum is in range before assigning it to 'int'.
	(Frecenter, Fmove_to_window_line): Use EMACS_INT, not int, for
	values converted from Emacs fixnums.
	(Frecenter): Don't wrap around a line count if it is out of 'int'
	range; instead, treat it as an extreme value.
	(Fset_window_configuration, compare_window_configurations):
	Use ptrdiff_t, not int, for index that might exceed 2 GiB.

Paul Eggert's avatar
Paul Eggert committed
620 621 622
	* search.c (Freplace_match): Use ptrdiff_t, not int, for indexes
	that can exceed INT_MAX.  Check that EMACS_INT value is in range
	before assigning it to the (possibly-narrower) index.
623 624
	(match_limit): Don't assume that a fixnum can fit in 'int'.

Paul Eggert's avatar
Paul Eggert committed
625
	* print.c (print_object): Use ptrdiff_t, not int, for index that can
Paul Eggert's avatar
Paul Eggert committed
626 627
	exceed INT_MAX.

Paul Eggert's avatar
Paul Eggert committed
628
	* indent.c (position_indentation): Now takes ptrdiff_t, not int.
629 630 631 632
	(Fvertical_motion): Don't wrap around LINES values that don't fit
	in 'int'.  Instead, treat them as extreme values.  This is good
	enough for windows, which can't have more than INT_MAX lines anyway.

633 634
2011-09-03  Lars Magne Ingebrigtsen  <larsi@gnus.org>

635 636
	* Require libxml/parser.h to avoid compilation warning.

637 638 639 640 641
	* emacs.c (shut_down_emacs): Call xmlCleanupParser on shutdown.

	* xml.c (parse_region): Don't call xmlCleanupParser after parsing,
	since this reportedly can destroy thread storage.

642 643 644 645 646
2011-08-30  Chong Yidong  <cyd@stupidchicken.com>

	* syntax.c (find_defun_start): Update all cache variables if
	exiting early (Bug#9401).

647 648
2011-08-30  Eli Zaretskii  <eliz@gnu.org>

649 650
	* image.c (x_bitmap_pixmap): Cast to int to avoid compiler warnings.

651 652 653 654 655 656 657
	* xdisp.c (produce_stretch_glyph): No longer static, compiled also
	when HAVE_WINDOW_SYSTEM is not defined.  Support both GUI and TTY
	frames.  Call tty_append_glyph in the TTY case.  (Bug#9402)

	* term.c (tty_append_glyph): New function.
	(produce_stretch_glyph): Static function and its prototype deleted.

658 659
	* dispextern.h (produce_stretch_glyph, tty_append_glyph):
	Add prototypes.
660

661 662 663 664 665
2011-08-29  Paul Eggert  <eggert@cs.ucla.edu>

	* image.c (parse_image_spec): Check for nonnegative, not for positive,
	when checking :margin (Bug#9390).
	(IMAGE_NON_NEGATIVE_INTEGER_VALUE_OR_PAIR):
666
	Rename from IMAGE_POSITIVE_INTEGER_VALUE_OR_PAIR,
667 668
	so that the name doesn't mislead.  All uses changed.

669 670 671 672 673
2011-08-28  Johan Bockgård  <bojohan@gnu.org>

	* term.c (init_tty) [HAVE_GPM]: Move mouse settings after
	set_tty_hooks.

674 675 676 677 678 679 680
2011-08-27  Eli Zaretskii  <eliz@gnu.org>

	* xdisp.c (move_it_to): Don't bail out early when reaching
	position beyond to_charpos, if we are scanning backwards.
	(move_it_vertically_backward): When DY == 0, make sure we get to
	the first character in the line after the newline.

681 682 683 684 685 686 687 688 689 690
2011-08-27  Paul Eggert  <eggert@cs.ucla.edu>

	* ccl.c: Improve and simplify overflow checking (Bug#9196).
	(ccl_driver): Do not generate an out-of-range pointer.
	(Fccl_execute_on_string): Remove unnecessary check for
	integer overflow, noted by Stefan Monnier in
	<http://lists.gnu.org/archive/html/emacs-devel/2011-08/msg00979.html>.
	Remove a FIXME that didn't need fixing.
	Simplify the newly-introduced buffer reallocation code.

691 692 693 694
2011-08-27  Juanma Barranquero  <lekktu@gmail.com>

	* makefile.w32-in ($(BLD)/alloc.$(O)): Depend on lib/verify.h.

Paul Eggert's avatar
Paul Eggert committed
695
2011-08-26  Paul Eggert  <eggert@cs.ucla.edu>
696

Paul Eggert's avatar
Paul Eggert committed
697
	Integer and memory overflow issues (Bug#9196).
698

699 700 701 702 703
	* doc.c (get_doc_string): Rework so that
	get_doc_string_buffer_size is the actual buffer size, rather than
	being 1 less than the actual buffer size; this makes xpalloc more
	convenient.

Paul Eggert's avatar
Paul Eggert committed
704 705 706 707
	* image.c (x_allocate_bitmap_record, cache_image):
	* xselect.c (Fx_register_dnd_atom):
	Simplify previous changes by using xpalloc.

708 709 710
	* buffer.c (overlay_str_len): Now ptrdiff_t, not EMACS_INT,
	since either will do and ptrdiff_t is convenient with xpalloc.

711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751
	* charset.c (charset_table_size)
	(struct charset_sort_data.priority): Now ptrdiff_t.
	(charset_compare): Don't overflow if priorities differ greatly.
	(Fsort_charsets): Don't assume list length fits in int.
	Check for size-calculation overflow when allocating sort data.
	(syms_of_charset): Allocate an initial charset table that is
	just under 64 KiB, to avoid problems with glibc malloc and mmap.

	* cmds.c (internal_self_insert): Check for size-calculation overflow.

	* composite.h (struct composition.glyph_len): Now int, not unsigned.
	The actual value is always <= INT_MAX, and leaving it unsigned made
	overflow checking harder.

	* dispextern.h (struct glyph_matrix.rows_allocated)
	(struct face_cache.size): Now ptrdiff_t, for convenience in use
	with xpalloc.  The values are still always <= INT_MAX.

	* indent.c (compute_motion): Adjust to region_cache_forward sig change.

	* lisp.h (xnmalloc, xnrealloc, xpalloc): New decls.
	(SAFE_NALLOCA): New macro.

	* region-cache.c (struct boundary.pos, find_cache_boundary)
	(move_cache_gap, insert_cache_boundary, delete_cache_boundaries)
	(set_cache_region, invalidate_region_cache)
	(revalidate_region_cache, know_region_cache, region_cache_forward)
	(region_cache_backward, pp_cache):
	Use ptrdiff_t, not EMACS_INT, since either will do.  This is needed
	so that ptrdiff_t * can be passed to xpalloc.
	(struct region_cache): Similarly, for gap_start, gap_len, cache_len,
	beg_unchanged, end_unchanged, buffer_beg, buffer_end members.
	(pp_cache): Don't assume cache_len fits in int.
	* region-cache.h: Adjust extern decls to match.

	* search.c (scan_buffer, Freplace_match): Use ptrdiff_t, not
	EMACS_INT, since either will do, for xpalloc.

	* alloc.c: Include verify.h, and check that int fits in ptrdiff_t.
	(xnmalloc, xnrealloc, xpalloc): New functions.

752 753 754 755
	* bidi.c (bidi_shelve_header_size): New constant.
	(bidi_cache_ensure_space, bidi_shelve_cache): Use it.
	(bidi_cache_ensure_space): Avoid integer overflow when allocating.

756
	* bidi.c (bidi_cache_shrink):
757 758 759 760
	* buffer.c (overlays_at, overlays_in, record_overlay_string)
	(overlay_strings):
	Don't update size of array until after memory allocation succeeds,
	because xmalloc/xrealloc may not return.
761 762 763 764
	(struct sortstrlist.bytes): Now ptrdiff_t, as EMACS_INT doesn't help
	now that we have proper integer overflow checking.
	(record_overlay_string, overlay_strings): Catch overflows when
	calculating size of overlay_str_buf.
765

766 767 768 769 770
	* callproc.c (Fcall_process): Check for size overflow when
	calculating size of args2.
	(child_setup): Avoid overflow by using size_t rather than ptrdiff_t.
	Normally we prefer signed values, but sticking with ptrdiff_t would
	require adding more-complicated checks.
771 772 773 774

	* ccl.c (Fccl_execute_on_string): Check for memory overflow.
	Use ptrdiff_t rather than EMACS_INT where ptrdiff_t will do.
	Redo buffer-overflow calculations to avoid integer overflow.
775
	Add a FIXME comment where memory seems to be over-allocated.
776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814

	* character.c (Fstring): Check for size-calculation overflow.

	* coding.c (produce_chars): Redo buffer-overflow calculations to avoid
	unnecessary integer overflow.  Check for size overflow.
	(encode_coding_object): Don't update size until xmalloc succeeds.

	* composite.c (get_composition_id): Check for overflow in glyph
	length calculations.

	Integer and memory overflow fixes for display code.
	* dispextern.h (struct glyph_pool.nglyphs): Now ptrdiff_t, not int.
	* dispnew.c (adjust_glyph_matrix, realloc_glyph_pool)
	(scrolling_window): Check for overflow in size calculations.
	(line_draw_cost, realloc_glyph_pool, add_row_entry):
	Don't assume glyph table len fits in int.
	(struct row_entry.bucket, row_entry_pool_size, row_entry_idx)
	(row_table_size): Now ptrdiff_t, not int.
	(scrolling_window): Avoid overflow in size calculations.
	Don't update size until allocation succeeds.
	* fns.c (concat): Check for overflow in size calculations.
	(next_almost_prime): Verify NEXT_ALMOST_PRIME_LIMIT.
	* lisp.h (RANGED_INTEGERP, TYPE_RANGED_INTEGERP): New macros.
	(NEXT_ALMOST_PRIME_LIMIT): New constant.

	* doc.c (get_doc_string_buffer_size): Now ptrdiff_t, not int.
	(get_doc_string): Check for size calculation overflow.
	Don't update size until allocation succeeds.
	(get_doc_string, Fsubstitute_command_keys): Use ptrdiff_t, not
	EMACS_INT, where ptrdiff_t will do.
	(Fsubstitute_command_keys): Check for string overflow.

	* editfns.c (set_time_zone_rule): Don't assume environment length
	fits in int.
	(message_length): Now ptrdiff_t, not int.
	(Fmessage_box): Don't update size until allocation succeeds.
	Don't assume message length fits in int.
	(Fformat): Use ptrdiff_t, not EMACS_INT, where ptrdiff_t will do.

815 816 817 818
	* emacs.c (main): Do not reallocate argv, since there is a null at
	the end that can be overwritten, and this way there's no need to
	worry about size-calculation overflow.
	(sort_args): Check for size-calculation overflow.
819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857

	* eval.c (init_eval_once, grow_specpdl): Don't update size until
	alloc succeeds.
	(call_debugger, grow_specpdl): Redo calculations to avoid overflow.

	* frame.c (set_menu_bar_lines, x_set_frame_parameters)
	(x_set_scroll_bar_width, x_figure_window_size):
	Check for integer overflow.
	(x_set_alpha): Do not assume XINT fits in int.

	* frame.h (struct frame): Use int, not EMACS_INT, where int works.
	This is for the members text_lines, text_cols, total_lines, total_cols,
	where the system imposes an 'int' limit.

	* fringe.c (Fdefine_fringe_bitmap):
	Don't update size until alloc works.

	* ftfont.c (ftfont_get_open_type_spec, setup_otf_gstring)
	(ftfont_shape_by_flt): Check for integer overflow in size calculations.

	* gtkutil.c (get_utf8_string, xg_store_widget_in_map):
	Check for size-calculation overflow.
	(get_utf8_string): Use ptrdiff_t, not size_t, where either will
	do, as we prefer signed integers.
	(id_to_widget.max_size, id_to_widget.used)
	(xg_store_widget_in_map, xg_remove_widget_from_map)
	(xg_get_widget_from_map, xg_get_scroll_id_for_window)
	(xg_remove_scroll_bar, xg_update_scrollbar_pos):
	Use and return ptrdiff_t, not int.
	(xg_gtk_scroll_destroy): Don't assume ptrdiff_t fits in int.
	* gtkutil.h: Change prototypes to match the above.

	* image.c (RANGED_INTEGERP, TYPE_RANGED_INTEGERP): Remove; these
	are duplicate now that they've been promoted to lisp.h.
	(x_allocate_bitmap_record, x_alloc_image_color)
	(make_image_cache, cache_image, xpm_load):
	Don't update size until alloc is done.
	(xpm_load, lookup_rgb_color, lookup_pixel_color, x_to_xcolors)
	(x_detect_edges):
858
	Check for size calculation overflow.
859 860 861
	(ct_colors_allocated_max): New constant.
	(x_to_xcolors, x_detect_edges): Reorder multiplicands to avoid
	overflow.
862

863 864 865 866 867
	* keyboard.c (read_char, menu_bar_items, tool_bar_items)
	(read_char_x_menu_prompt, read_char_minibuf_menu_width)
	(read_char_minibuf_menu_prompt, follow_key, read_key_sequence):
	Use ptrdiff_t, not int, to count maps.
	(read_char_minibuf_menu_prompt): Check for overflow in size
868 869
	calculations.  Don't update size until allocation succeeds.
	Redo calculations to avoid overflow.
870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920
	* keyboard.h: Change prototypes to match the above.

	* keymap.c (cmm_size, current_minor_maps): Use ptrdiff_t, not int,
	to count maps.
	(current_minor_maps): Check for size calculation overflow.
	* keymap.h: Change prototypes to match the above.

	* lread.c (read1, init_obarray): Don't update size until alloc done.

	* macros.c (Fstart_kbd_macro): Don't update size until alloc done.
	(store_kbd_macro_char): Reorder multiplicands to avoid overflow.

	* nsterm.h (struct ns_color_table.size, struct ns_color_table.avail):
	Now ptrdiff_t, not int.
	* nsterm.m (ns_index_color): Use ptrdiff_t, not int, for table indexes.
	(ns_draw_fringe_bitmap): Rewrite to avoid overflow.

	* process.c (Fnetwork_interface_list): Check for overflow
	in size calculation.

	* region-cache.c (move_cache_gap): Check for size calculation overflow.

	* scroll.c (do_line_insertion_deletion_costs): Check for size calc
	overflow.  Don't bother calling xmalloc when xrealloc will do.

	* search.c (Freplace_match): Check for size calculation overflow.
	(Fset_match_data): Don't assume list lengths fit in 'int'.

	* sysdep.c (system_process_attributes): Use ptrdiff_t, not int,
	for command line length.  Do not attempt to address one before the
	beginning of an array, as that's not portable.

	* term.c (max_frame_lines): Remove; unused.
	(encode_terminal_src_size, encode_terminal_dst_size): Now ptrdiff_t,
	not int.
	(encode_terminal_code, calculate_costs): Check for size
	calculation overflow.
	(encode_terminal_code): Use ptrdiff_t, not int, to record glyph
	table lengths and related sizes.  Don't update size until alloc
	done.  Redo calculations to avoid overflow.
	(calculate_costs): Don't bother calling xmalloc when xrealloc will do.

	* termcap.c (tgetent): Use ptrdiff_t, not int, to record results of
	subtracting pointers.
	(gobble_line): Check for overflow more carefully.  Don't update size
	until alloc done.

	* tparam.c (tparam1): Use ptrdiff_t, not int, for sizes.
	Don't update size until alloc done.
	Redo size calculations to avoid overflow.
	Check for size calculation overflow.
921
	(main) [DEBUG]: Fix typo in invoking tparam1.
922 923 924 925 926

	* xdisp.c (store_mode_line_noprop_char, x_consider_frame_title):
	Use ptrdiff_t, not int, for sizes.
	(store_mode_line_noprop_char): Don't update size until alloc done.

927 928 929 930 931 932
	* xfaces.c (lface_id_to_name_size, Finternal_make_lisp_face):
	Use ptrdiff_t, not int, for sizes.
	(Finternal_make_lisp_face, cache_face):
	Check for size calculation overflow.
	(cache_face): Treat size calculation overflows as if they were
	memory exhaustion (the usual treatment), rather than aborting.
933 934 935 936 937 938

	* xfns.c (x_encode_text, x_set_name_internal)
	(Fx_change_window_property): Use ptrdiff_t, not int, to count
	sizes, since they can exceed INT_MAX in size.  Check for size
	calculation overflow.

939 940
	* xgselect.c (gfds_size): Now ptrdiff_t, for convenience with xpalloc.
	(xg_select): Check for size calculation overflow.
941 942
	Don't update size until alloc done.

943
	* xrdb.c (get_environ_db): Don't assume path length fits in int,
944
	as sprintf is limited to int lengths.
945

946 947
	* xselect.c (X_LONG_SIZE, X_SHRT_MAX, X_SHRT_MIN, X_LONG_MAX)
	(X_LONG_MIN): New macros.
948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965
	Use them to make the following changes clearer.
	(MAX_SELECTION_QUANTUM): Make the other bounds on this value clearer.
	This change doesn't affect the value now, but it may help remind
	future maintainers not to raise the value too much later.
	(SELECTION_QUANTUM): Remove, replacing with ...
	(selection_quantum): ... new function, which avoids overflow.
	All uses changed.
	(struct selection_data.size): Now ptrdiff_t, not int, to avoid
	assumption that selection length fits in 'int'.
	(x_reply_selection_request, x_handle_selection_request)
	(x_get_window_property, receive_incremental_selection)
	(x_get_window_property_as_lisp_data, selection_data_to_lisp_data)
	(lisp_data_to_selection_data, clean_local_selection_data):
	Use ptrdiff_t, not int, to record length of selection.
	(x_reply_selection_request, x_get_window_property)
	(receive_incremental_selection, x_property_data_to_lisp):
	Redo calculations to avoid overflow.
	(x_reply_selection_request): When sending hint, ceiling it at
966
	X_LONG_MAX rather than relying on wraparound overflow to send
967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991
	something.
	(x_get_window_property, receive_incremental_selection)
	(lisp_data_to_selection_data, x_property_data_to_lisp):
	Check for size-calculation overflow.
	(x_get_window_property, receive_incremental_selection)
	(lisp_data_to_selection_data, Fx_register_dnd_atom):
	Don't store size until memory allocation succeeds.
	(x_get_window_property): Plug memory leak on memory exhaustion.
	Don't double-block input; malloc is safe here.  Don't assume 2**34
	- 4 fits in unsigned long.  Add an xassert to check
	XGetWindowProperty overflow.  Be more careful about overflow
	calculations, and distinguish size from memory overflow better.
	(receive_incremental_selection): When tracing, don't assume
	unsigned int is less than INT_MAX.
	(x_selection_data_to_lisp_data): Remove unnecessary (and in theory
	harmful) conversions of unsigned short to int.
	(lisp_data_to_selection_data): Don't assume that integers
	in the range -65535 through -1 fit in an X unsigned short.
	Don't assume that ULONG_MAX == X_ULONG_MAX.  Don't store into
	result parameters unless successful.  Rely on cons_to_unsigned
	to report problems with elements; the old code wasn't right anyway.
	(x_check_property_data): Check for int overflow; we cannot use
	a wider type due to X limits.
	(x_handle_dnd_message): Use unsigned int, to avoid int overflow.

992
	* xsmfns.c (smc_save_yourself_CB): Check for size calc overflow.
993

994 995
	* xterm.c (x_color_cells, x_send_scrollbar_event, handle_one_xevent)
	(x_term_init): Check for size calculation overflow.
996 997
	(x_color_cells): Don't store size until memory allocation succeeds.
	(handle_one_xevent): Use ptrdiff_t, not int, for byte counts.
998
	Don't assume alloca size is less than MAX_ALLOCA.
999 1000
	(x_term_init): Don't assume length fits in int (sprintf is limited
	to int size).
Paul Eggert's avatar
Paul Eggert committed
1001

1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012
	Use ptrdiff_t for composition IDs.
	* character.c (lisp_string_width):
	* composite.c (composition_table_size, n_compositions)
	(get_composition_id, composition_gstring_from_id):
	* dispextern.h (struct glyph_string.cmp_id, struct composition_it.id):
	* xdisp.c (BUILD_COMPOSITE_GLYPH_STRING):
	* window.c (Frecenter):
	Use ptrdiff_t, not int, for composition IDs.
	* composite.c (get_composition_id): Check for integer overflow.
	* composite.h: Adjust prototypes to match the above changes.

1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027
	Use ptrdiff_t for hash table indexes.
	* category.c (hash_get_category_set):
	* ccl.c (ccl_driver):
	* charset.h (struct charset.hash_index, CHECK_CHARSET_GET_ID):
	* coding.c (coding_system_charset_list, detect_coding_system):
	* coding.h (struct coding_system.id):
	* composite.c (get_composition_id, gstring_lookup_cache):
	* fns.c (hash_lookup, hash_put, Fgethash, Fputhash):
	* image.c (xpm_get_color_table_h):
	* lisp.h (hash_lookup, hash_put):
	* minibuf.c (Ftest_completion):
	Use ptrdiff_t for hash table indexes, not int (which is too
	narrow, on 64-bit hosts) or EMACS_INT (which is too wide, on
	32-bit --with-wide-int hosts).

1028 1029 1030 1031
	* charset.c (Fdefine_charset_internal): Check for integer overflow.
	Add a FIXME comment about memory leaks.
	(syms_of_charset): Don't assume xmalloc returns.

1032 1033 1034 1035 1036 1037
	Don't assume that stated character widths fit in int.
	* character.c (Fchar_width, c_string_width, lisp_string_width):
	* character.h (CHAR_WIDTH):
	* indent.c (MULTIBYTE_BYTES_WIDTH):
	Use sanitize_char_width to avoid undefined and/or bad behavior
	with outlandish widths.
1038
	* character.h (sanitize_tab_width): Rename from sanitize_width,
1039 1040 1041
	now that we have two such functions.  All uses changed.
	(sanitize_char_width): New inline function.

1042 1043 1044 1045 1046 1047 1048 1049
	Don't assume that tab-width fits in int.
	* character.h (sanitize_width): New inline function.
	(SANE_TAB_WIDTH): New macro.
	(ASCII_CHAR_WIDTH): Use it.
	* indent.c (sane_tab_width): Remove.  All uses replaced by
	SANE_TAB_WIDTH (current_buffer).
	* xdisp.c (init_iterator): Use SANE_TAB_WIDTH.

1050 1051 1052
	* fileio.c: Integer overflow issues with file modes.
	(Fset_file_modes, auto_save_1): Don't assume EMACS_INT fits in int.

1053 1054 1055 1056
	* charset.c (read_hex): New arg OVERFLOW.  All uses changed.
	Remove unreachable code.
	(read_hex, load_charset_map_from_file): Check for integer overflow.

1057 1058 1059 1060 1061 1062
	* xterm.c: don't go over XClientMessageEvent limit
	(scroll_bar_windows_size): Now ptrdiff_t, as we prefer signed.
	(x_send_scroll_bar_event): Likewise.  Check that the size does not
	exceed limits imposed by XClientMessageEvent, as well as the usual
	ptrdiff_t and size_t limits.

1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075
	* keyboard.c: Overflow, signedness and related fixes.
	(make_lispy_movement): Use same integer type in forward decl
	that is used in the definition.
	(read_key_sequence, keyremap_step):
	Change bufsize argument back to int, undoing my 2011-03-30 change.
	We prefer signed types, and int is wide enough here.
	(parse_tool_bar_item): Don't assume tool_bar_max_label_size is less
	than TYPE_MAXIMUM (EMACS_INT) / 2.  Don't let the label size grow
	larger than STRING_BYTES_BOUND.  Use ptrdiff_t for Emacs string
	length, not size_t.  Use ptrdiff_t for index, not int.
	(keyremap_step, read_key_sequence): Redo bufsize check to avoid
	possibility of integer overflow.

1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103
	Overflow, signedness and related fixes for images.

	* dispextern.h (struct it.stack[0].u.image.image_id)
	(struct_it.image_id, struct image.id, struct image_cache.size)
	(struct image_cache.used, struct image_cache.ref_count):
	* gtkutil.c (update_frame_tool_bar):
	* image.c (x_reference_bitmap, Fimage_size, Fimage_mask_p)
	(Fimage_metadata, free_image_cache, clear_image_cache, lookup_image)
	(cache_image, mark_image_cache, x_kill_gs_process, Flookup_image):
	* nsmenu.m (update_frame_tool_bar):
	* xdisp.c (calc_pixel_width_or_height):
	* xfns.c (image_cache_refcount):
	Image IDs are now ptrdiff_t, not int, to avoid arbitrary limits
	on typical 64-bit hosts.

	* image.c (RANGED_INTEGERP, TYPE_RANGED_INTEGERP): New macros.
	(x_bitmap_pixmap, x_create_x_image_and_pixmap):
	Omit unnecessary casts to int.
	(parse_image_spec): Check that integers fall into 'int' range
	when the callers expect that.
	(image_ascent): Redo ascent calculation to avoid int overflow.
	(clear_image_cache): Avoid overflow when sqrt (INT_MAX) < nimages.
	(lookup_image): Remove unnecessary tests.
	(xbm_image_p): Locals are now of int, not EMACS_INT,
	since parse_image_check makes sure they fit into int.
	(png_load, gif_load, svg_load_image):
	Prefer int to unsigned where either will do.
	(tiff_handler): New function, combining the cores of the
1104 1105
	old tiff_error_handler and tiff_warning_handler.
	This function is rewritten to use vsnprintf and thereby avoid
1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118
	stack buffer overflows.  It uses only the features of vsnprintf
	that are common to both POSIX and native Microsoft.
	(tiff_error_handler, tiff_warning_handler): Use it.
	(tiff_load, gif_load, imagemagick_load_image):
	Don't assume :index value fits in 'int'.
	(gif_load): Omit unnecessary cast to double, and avoid double-rounding.
	(imagemagick_load_image): Check that crop parameters fit into
	the integer types that MagickCropImage accepts.  Don't assume
	Vimagemagick_render_type has a nonnegative value.  Don't assume
	size_t fits in 'long'.
	(gs_load): Use printmax_t to print the widest integers possible.
	Check for integer overflow when computing image height and width.

1119 1120 1121 1122 1123
2011-08-26  Eli Zaretskii  <eliz@gnu.org>

	* xdisp.c (redisplay_window): Don't force window start if point
	will be invisible in the resulting window.  (Bug#9324)

1124 1125 1126 1127 1128 1129 1130 1131 1132
2011-08-25  Eli Zaretskii  <eliz@gnu.org>

	* xdisp.c (compute_display_string_pos): Return 2 in DISP_PROP when
	the display spec is of the form `(space ...)'.
	(handle_display_spec): Return the value returned by
	handle_single_display_spec, not just 1 or zero.
	(handle_single_display_spec): If the display spec is of the form
	`(space ...)', and specifies display in the text area, return 2
	rather than 1.
1133
	(try_cursor_movement): Check for the need to scroll more
1134 1135
	accurately, and prefer exact match for point under bidi.
	Don't advance `row' beyond the last row of the window.
1136 1137 1138 1139 1140 1141 1142 1143

	* dispextern.h (struct bidi_it): Rename the disp_prop_p member
	into disp_prop; all users changed.

	* bidi.c (bidi_fetch_char): If compute_display_string_pos returns
	DISP_PROP = 2, substitute the u+2029 PARAGRAPH SEPARATOR character
	for the text covered by the display property.

1144 1145 1146 1147 1148 1149
2011-08-25  Chong Yidong  <cyd@stupidchicken.com>

	* buffer.c (Fbury_buffer_internal): Rename from Funrecord_buffer.
	Change return value to nil.
	(Frecord_buffer): Delete unused function.

Eli Zaretskii's avatar
Eli Zaretskii committed
1150 1151
2011-08-24  Eli Zaretskii  <eliz@gnu.org>

1152 1153
	* xdisp.c (Fcurrent_bidi_paragraph_direction): For unibyte
	buffers, return left-to-right.
1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166
	(set_cursor_from_row): Consider candidate row a win if its glyph
	represents a newline and point is on that newline.  Fixes cursor
	positioning on the newline at EOL of R2L text within L2R
	paragraph, and vice versa.
	(try_cursor_movement): Check continued rows, in addition to
	continuation rows.  Fixes unwarranted scroll when point enters a
	continued line of R2L text within an L2R paragraph, or vice versa.
	(cursor_row_p): Consider the case of point being equal to
	MATRIX_ROW_END_CHARPOS.  Prevents cursor being stuck when moving
	from the end of a short line to the beginning of a continued line
	of R2L text within L2R paragraph.
	(RECORD_MAX_MIN_POS): For max_pos, use IT_CHARPOS even for
	composed characters.
1167

Eli Zaretskii's avatar
Eli Zaretskii committed
1168 1169 1170 1171
	* bidi.c (bidi_check_type): Use xassert.
	(bidi_cache_iterator_state): Update the disp_pos and disp_prop_p
	members.

1172 1173 1174 1175 1176
2011-08-23  Eli Zaretskii  <eliz@gnu.org>

	* bidi.c (bidi_get_type): Abort if we get zero as the bidi type of
	a character.

1177 1178 1179 1180
2011-08-23  Chong Yidong  <cyd@stupidchicken.com>

	* nsfont.m (ns_otf_to_script): Fix typo.

1181 1182 1183 1184 1185
2011-08-22  Kenichi Handa  <handa@m17n.org>

	* chartab.c (Fset_char_table_extra_slot): Do not inhibit setting a
	extra slot even if the purpose is char-code-property-table.

1186 1187
2011-08-23  Eli Zaretskii  <eliz@gnu.org>

1188 1189 1190
	* xdisp.c (redisplay_window): When computing centering_position,
	account for the height of the header line.  (Bug#8874)

1191 1192 1193 1194 1195
	* dispnew.c (buffer_posn_from_coords): Use buf_charpos_to_bytepos
	instead of CHAR_TO_BYTE.  Fixes a crash when a completion
	candidate is selected by the mouse, and that candidate has a
	composed character under the mouse.

1196 1197 1198 1199
	* xdisp.c (x_produce_glyphs): Set it->nglyphs to 1.  Fixes pixel
	coordinates reported by pos-visible-in-window-p for a composed
	character in column zero.

1200 1201 1202 1203
2011-08-23  Stefan Monnier  <monnier@iro.umontreal.ca>

	* cmds.c (Fself_insert_command): Mention post-self-insert-hook.

1204 1205 1206 1207 1208 1209
2011-08-22  Eli Zaretskii  <eliz@gnu.org>

	* xdisp.c (BUFFER_POS_REACHED_P): If this is a composition,
	consider it a hit if to_charpos is anywhere in the range of the
	composed buffer positions.

1210 1211 1212 1213 1214 1215
2011-08-22  Chong Yidong  <cyd@stupidchicken.com>

	* image.c (gif_load): Don't assume that each subimage has the same
	dimensions as the base image.  Handle disposal method that is
	"undefined" by the gif spec (Bug#9335).

1216 1217 1218
2011-08-20  Chong Yidong  <cyd@stupidchicken.com>

	* eval.c (Fsignal): Handle `debug' symbol in error handler (Bug#9329).
1219
	(Fcondition_case): Document `debug' symbol in error handler.
1220

1221 1222
2011-08-19  Eli Zaretskii  <eliz@gnu.org>

1223 1224 1225 1226
	* xfaces.c (face_at_buffer_position): Avoid repeated evaluation of
	face ID by FACE_FROM_ID, and avoid a crash when mouse is moved
	from an Org mode buffer to a Speedbar frame.

1227 1228 1229 1230 1231
	* xdisp.c (RECORD_MAX_MIN_POS): If the display element comes from
	a composition, take its buffer position from IT->cmp_it.charpos.
	Fixes cursor positioning at the beginning of a line that begins
	with a composed character.

1232 1233
2011-08-18  Eli Zaretskii  <eliz@gnu.org>

1234 1235 1236 1237
	* bidi.c (bidi_get_type): If bidi_type_table reports zero as the
	character bidirectional type, use STRONG_L instead.  Fixes crashes
	in a buffer produced by `describe-categories'.

1238 1239 1240 1241 1242
	* dispextern.h (struct bidi_it): Move disp_pos and disp_prop_p
	members before the level stack, so they would be saved and
	restored when copying iterator state.  Fixes incorrect reordering
	around TABs covered by display properties.

1243 1244 1245 1246 1247
2011-08-18  Andreas Schwab  <schwab@linux-m68k.org>

	* process.c (Fnetwork_interface_list): Correctly determine buffer
	size.

1248 1249 1250
2011-08-17  Chong Yidong  <cyd@stupidchicken.com>

	* eval.c (internal_condition_case, internal_condition_case_1)
1251 1252
	(internal_condition_case_2, internal_condition_case_n):
	Remove unnecessary aborts (Bug#9081).
1253

1254 1255 1256 1257 1258
2011-08-17  Eli Zaretskii  <eliz@gnu.org>

	* lread.c (Fload) [DOS_NT]: If `openp' returns -2, but the file
	has no `load' handler, try opening the file locally.  (Bug#9311)

Ken Brown's avatar
Ken Brown committed
1259 1260 1261 1262
2011-08-16  Ken Brown  <kbrown@cornell.edu>

	* gmalloc.c: Expand comment.

1263 1264 1265 1266 1267
2011-08-16  Eli Zaretskii  <eliz@gnu.org>

	* xdisp.c (set_cursor_from_row): Don't accept a previous candidate
	if it fails the cursor_row_p test.  Fixes cursor positioning at ZV.

1268 1269 1270 1271 1272 1273 1274
2011-08-16  Ken Brown  <kbrown@cornell.edu>

	Fix memory allocation problems in Cygwin build (Bug#9273).

	* unexcw.c ( __malloc_initialized): Declare external variable.
	(fixup_executable): Force the dumped emacs to reinitialize malloc.

1275 1276
	* gmalloc.c [CYGWIN] (bss_sbrk_heapbase, bss_sbrk_heapinfo):
	New variables.
1277 1278 1279 1280 1281 1282 1283 1284
	(malloc_initialize_1) [CYGWIN]: Prepare for reinitializing the
	dumped emacs.
	(_free_internal_nolock) [CYGWIN]: Ignore requests to free storage
	in the static heap.
	[CYGWIN] (special_realloc): New function.
	(_realloc_internal_nolock) [CYGWIN]: Use the new function on
	requests to realloc storage in the static heap.

1285 1286 1287 1288
2011-08-15  Paul Eggert  <eggert@cs.ucla.edu>

	* bidi.c (bidi_initialize): Remove unused local.

1289 1290
2011-08-15  Eli Zaretskii  <eliz@gnu.org>

1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304
	* biditype.h: File removed.

	* bidimirror.h: File removed.

	* deps.mk (bidi.o): Remove biditype.h and
	bidimirror.h.

	* makefile.w32-in ($(BLD)/bidi.$(O)): Remove biditype.h and
	bidimirror.h.

	* dispextern.h: Fix a typo in the comment to bidi_type_t.

	* chartab.c: Improve commentary for the uniprop_table API.

1305 1306
	* bidi.c (bidi_paragraph_init): Support zero value of
	bidi_ignore_explicit_marks_for_paragraph_level.
1307 1308
	(bidi_initialize): Use uniprop_table instead of including
	biditype.h and bidimirror.h.
1309

1310 1311 1312 1313
	* xdisp.c (move_it_in_display_line_to): Don't reset pixel
	coordinates of the iterator when restoring from ppos_it.
	(Bug#9296)

1314 1315 1316
2011-08-14  Kenichi Handa  <handa@m17n.org>

	* process.c (create_process): Call setup_process_coding_systems
1317
	after the pid of the process is set to -1 (Bug#8162).
1318

1319 1320 1321 1322 1323 1324 1325
2011-08-14  Eli Zaretskii  <eliz@gnu.org>

	* xdisp.c (move_it_in_display_line_to): Don't invoke
	IT_RESET_X_ASCENT_DESCENT when iterator position was restored from
	ppos_it.  Fixes vertical cursor motion when line beginning is
	covered by an image.  (Bug#9296)

1326 1327 1328 1329 1330 1331 1332
2011-08-14  Jan Djärv  <jan.h.d@swipnet.se>

	* nsterm.h (ns_run_ascript): Declare.
	(NSAPP_DATA2_RUNASSCRIPT): Define.

	* nsfns.m (as_script, as_result, as_status): New static variables.
	(ns_run_ascript): New function.
Juanma Barranquero's avatar
Juanma Barranquero committed
1333
	(Fns_do_applescript): Set variables as_*.  Make an NSApplicationDefined
1334 1335 1336 1337 1338 1339 1340
	event with data2 set to NSAPP_DATA2_RUNASSCRIPT, post it and then start
	the event loop.  Get status from as_status (Bug#7276).

	* nsterm.m (sendEvent): If event is NSApplicationDefined and
	data2 is NSAPP_DATA2_RUNASSCRIPT, call ns_run_ascript and then exit
	the event loop (Bug#7276).

1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354
2011-08-14  Andreas Schwab  <schwab@linux-m68k.org>

	* gnutls.c (QCgnutls_bootprop_priority)
	(QCgnutls_bootprop_trustfiles, QCgnutls_bootprop_keylist)
	(QCgnutls_bootprop_crlfiles, QCgnutls_bootprop_callbacks)
	(QCgnutls_bootprop_loglevel, QCgnutls_bootprop_hostname)
	(QCgnutls_bootprop_min_prime_bits, QCgnutls_bootprop_verify_flags)
	(QCgnutls_bootprop_verify_hostname_error)
	(QCgnutls_bootprop_callbacks_verify): Rename from
	Qgnutls_bootprop_..., all uses changed.

	* xfaces.c (QCignore_defface): Rename from Qignore_defface, all
	uses changed.

1355 1356
2011-08-14  Paul Eggert  <eggert@cs.ucla.edu>

1357 1358 1359
	* xfaces.c (Qframe_set_background_mode): Now static.
	* dispextern.h (Qframe_set_background_mode): Remove decl.

1360 1361
	* process.c (Fnetwork_interface_info): Declare local only if needed.

1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372
2011-08-13  Jan Djärv  <jan.h.d@swipnet.se>

	* process.c: Include ifaddrs.h and net/if_dl.h if available (Bug#8477).
	(Fnetwork_interface_list): Allocate in increments of bytes instead
	of sizeof (struct ifreq).  Iterate over ifconf.ifc_req by counting
	bytes (Bug#8477).  Count bytes correctly when ifr_addr is a struct
	sockaddr.
	(struct ifflag_def): notrailers is smart on OSX.
	(Fnetwork_interface_info): Handle case when ifr_flags is negative.
	Get hardware address with getifaddrs if available.

1373 1374 1375 1376 1377
2011-08-12  Eli Zaretskii  <eliz@gnu.org>

	* xdisp.c (iterate_out_of_display_property): xassert that
	IT->position is set to within IT->object's boundaries.  Break from
	the loop as soon as EOB is reached; avoids infloops in redisplay
1378 1379
	when IT->position is set up wrongly due to some bug.
	Set IT->current to match the bidi iterator unconditionally.
1380 1381 1382 1383 1384 1385 1386
	(push_display_prop): Allow GET_FROM_STRING as IT->method on
	entry.  Force push_it to save on the stack the current
	buffer/string position, to be restored by pop_it.  Fix flags in
	the iterator structure wrt the object coming from a display
	property, as `line-prefix' and `wrap-prefix' are not ``replacing''
	properties.  (Bug#9284)

Chong Yidong's avatar
Chong Yidong committed
1387
2011-08-09  Andreas Schwab  <schwab@linux-m68k.org>
1388

Chong Yidong's avatar
Chong Yidong committed
1389 1390
	* fontset.c (fontset_get_font_group): Add proper type checks.
	(Bug#9172)
1391

Chong Yidong's avatar
Chong Yidong committed
1392
2011-08-09  YAMAMOTO Mitsuharu  <mituharu@math.s.chiba-u.ac.jp>
1393

Chong Yidong's avatar
Chong Yidong committed
1394 1395 1396