-2011-06-19 Paul Eggert <eggert@cs.ucla.edu>
+2011-06-22 Paul Eggert <eggert@cs.ucla.edu>
+
+ * lread.c: Integer overflow issues.
+ (saved_doc_string_size, saved_doc_string_length)
+ (prev_saved_doc_string_size, prev_saved_doc_string_length):
+ Now ptrdiff_t, not int.
+ (read1): Don't assume doc string length fits in int. Check for
+ out-of-range doc string lengths.
+ (read_list): Don't assume file position fits in int.
+
+ Fixes for GLYPH_DEBUG found by GCC 4.6.0 static checking.
+ The following patches are for when GLYPH_DEBUG && !XASSERT.
+ * dispextern.h (trace_redisplay_p, dump_glyph_string):
+ * dispnew.c (flush_stdout):
+ * xdisp.c (dump_glyph_row, dump_glyph_matrix, dump_glyph):
+ Mark as externally visible.
+ * dispnew.c (check_window_matrix_pointers): Now static.
+ * dispnew.c (window_to_frame_vpos):
+ * xfns.c (unwind_create_frame):
+ * xterm.c (x_check_font): Remove unused local.
+ * scroll.c (CHECK_BOUNDS):
+ * xfaces.c (cache_fache): Rename local to avoid shadowing.
+ * xfns.c, w32fns.c (image_cache_refcount, dpyinfo_refcount): Now static.
+ * xdisp.c (check_window_end): Now a no-op if !XASSERTS.
+ (debug_first_unchanged_at_end_vpos, debug_last_unchanged_at_beg_vpos)
+ (debug_dvpos, debug_dy, debug_delta, debug_delta_bytes, debug_end_vpos):
+ Now static.
+ (debug_method_add): Use va_list and vsprintf rather than relying
+ on undefined behavior with wrong number of arguments.
+ (dump_glyph, dump_glyph_row, Fdump_glyph_matrix):
+ Don't assume ptrdiff_t and EMACS_INT are the same width as int.
+ In this code, it's OK to assume C99 behavior for ptrdiff_t formats
+ since we're not interested in debugging glyphs with old libraries.
+ * xfaces.c (cache_face): Move debugging code earlier; this pacifies
+ GCC 4.6.0's static checking.
+
+2011-06-22 Paul Eggert <eggert@cs.ucla.edu>
+
+ Integer overflow and signedness fixes (Bug#8873).
+ A few related buffer overrun fixes, too.
+
+ * font.c (font_score): Use EMACS_INT, not int, to store XINT value.
+
+ * dispextern.h (struct face.stipple):
+ * image.c (x_bitmap_height, x_bitmap_width, x_bitmap_pixmap)
+ (x_bitmap_mask, x_allocate_bitmap_record)
+ (x_create_bitmap_from_data, x_create_bitmap_from_file)
+ (x_destroy_bitmap, x_destroy_all_bitmaps, x_create_bitmap_mask)
+ (x_create_bitmap_from_xpm_data):
+ * nsterm.h (struct ns_display_info.bitmaps_size, .bitmaps_last):
+ * w32term.h (struct w32_display_info.icon_bitmap_id, .bitmaps_size)
+ (.bitmaps_last):
+ * xfaces.c (load_pixmap):
+ * xterm.c (x_bitmap_icon, x_wm_set_icon_pixmap):
+ * xterm.h (struct x_display_info.icon_bitmap_id, .bitmaps_size)
+ (.bitmaps_last, struct x_output.icon_bitmap):
+ Use ptrdiff_t, not int, for bitmap indexes.
+ (x_allocate_bitmap_record): Check for size overflow.
+ * dispextern.h, lisp.h: Adjust to API changes elsewhere.
+
+ Use ptrdiff_t, not int, for overlay counts.
+ * buffer.h (overlays_at, sort_overlays, GET_OVERLAYS_AT):
+ * editfns.c (overlays_around, get_pos_property):
+ * textprop.c (get_char_property_and_overlay):
+ * xdisp.c (next_overlay_change, note_mouse_highlight):
+ * xfaces.c (face_at_buffer_position):
+ * buffer.c (OVERLAY_COUNT_MAX): New macro.
+ (overlays_at, overlays_in, sort_overlays, Foverlays_at)
+ (Fnext_overlay_change, Fprevious_overlay_change)
+ (mouse_face_overlay_overlaps, Foverlays_in):
+ Use ptrdiff_t, not int, for sizes.
+ (overlays_at, overlays_in): Check for size-calculation overflow.
+
+ * xterm.c (xim_initialize, same_x_server): Strlen may not fit in int.
+
+ * xsmfns.c (smc_save_yourself_CB, x_session_initialize): Avoid strlen.
+ (x_session_initialize): Do not assume string length fits in int.
+
+ * xsettings.c (apply_xft_settings): Fix potential buffer overrun.
+ This is unlikely, but can occur if DPI is outlandish.
+
+ * xsettings.c (Ffont_get_system_normal_font, Ffont_get_system_font):
+ * xselect.c (Fx_get_atom_name): Avoid need for strlen.
+
+ * xrdb.c: Don't assume strlen fits in int; avoid some strlens.
+ * xrdb.c (magic_file_p, search_magic_path):
+ Omit last arg SUFFIX; it was always 0. All callers changed.
+ (magic_file_p): Use ptrdiff_t, not int. Check for size overflow.
+
+ * xfont.c (xfont_match): Avoid need for strlen.
+
+ * xfns.c: Don't assume strlen fits in int.
+ (xic_create_fontsetname, x_window): Use ptrdiff_t, not int.
+
+ * xdisp.c (message_log_check_duplicate): Return intmax_t,
+ not unsigned long, as we prefer signed integers. All callers changed.
+ Detect integer overflow in repeat count.
+ (message_dolog): Don't assume print length fits in 39 bytes.
+ (display_mode_element): Don't assume strlen fits in int.
+
+ * termcap.c: Don't assume sizes fit in int and never overflow.
+ (struct termcap_buffer, tgetent): Use ptrdiff_t, not int, for sizes.
+ (gobble_line): Check for size-calculation overflow.
+
+ * minibuf.c (Fread_buffer):
+ * lread.c (intern, intern_c_string):
+ * image.c (xpm_scan) [HAVE_NS && !HAVE_XPM]:
+ Don't assume string length fits in int.
+
+ * keyboard.c (parse_tool_bar_item):
+ * gtkutil.c (style_changed_cb): Avoid need for strlen.
+
+ * font.c: Don't assume string length fits in int.
+ (font_parse_xlfd, font_parse_fcname, font_unparse_fcname):
+ Use ptrdiff_t, not int.
+ (font_intern_prop): Don't assume string length fits in int.
+ Don't assume integer property fits in fixnum.
+ * font.h (font_intern_prop): 2nd arg is now ptrdiff_t, not int.
+
+ * filelock.c: Fix some buffer overrun and integer overflow issues.
+ (get_boot_time): Don't assume gzip command string fits in 100 bytes.
+ Reformulate so as not to need the command string.
+ Invoke gzip -cd rather than gunzip, as it's more portable.
+ (lock_info_type, lock_file_1, lock_file):
+ Don't assume pid_t and time_t fit in unsigned long.
+ (LOCK_PID_MAX): Remove; we now use more-reliable bounds.
+ (current_lock_owner): Prefer signed type for sizes.
+ Use memcpy, not strncpy, where memcpy is what is really wanted.
+ Don't assume (via atoi) that time_t and pid_t fit in int.
+ Check for time_t and/or pid_t out of range, e.g., via a network share.
+ Don't alloca where an auto var works fine.
+
+ * fileio.c: Fix some integer overflow issues.
+ (file_name_as_directory, Fexpand_file_name, Fsubstitute_in_file_name):
+ Don't assume string length fits in int.
+ (directory_file_name): Don't assume string length fits in long.
+ (make_temp_name): Don't assume pid fits in int, or that its print
+ length is less than 20.
+
+ * data.c (Fsubr_name): Rewrite to avoid a strlen call.
+
+ * coding.c (make_subsidiaries): Don't assume string length fits in int.
+
+ * callproc.c (child_setup): Rewrite to avoid two strlen calls.
+
+ * process.c (Fformat_network_address): Use EMACS_INT, not EMACS_UINT.
+ We prefer signed integers, even for size calculations.
+
+ * emacs.c: Don't assume string length fits in 'int'.
+ (DEFINE_DUMMY_FUNCTION, sort_args): Use ptrdiff_t, not int.
+ (main): Don't invoke strlen when not needed.
+
+ * dbusbind.c (XD_ERROR): Don't arbitrarily truncate string.
+ (XD_DEBUG_MESSAGE): Don't waste a byte.
+
+ * callproc.c (getenv_internal_1, getenv_internal)
+ (Fgetenv_internal):
+ * buffer.c (init_buffer): Don't assume string length fits in 'int'.
* lread.c (invalid_syntax): Omit length argument.
All uses changed. This doesn't fix a bug, but it simplifies the
code away from its former Hollerith-constant appearance, and it's
one less 'int' to worry about when looking at integer-overflow issues.
- (string_to_number): Simplify the 2011-04-26 change by invoking xsignal1.
+ (string_to_number): Simplify 2011-04-26 change by invoking xsignal1.
* lisp.h (DEFUN): Remove bogus use of sizeof (struct Lisp_Subr).
This didn't break anything, but it didn't help either.
(LIST_END_P): Remove unused macro and its bogus comment.
(make_fixnum_or_float): Remove unnecessary cast to EMACS_INT.
-2011-06-18 Paul Eggert <eggert@cs.ucla.edu>
-
* lisp.h (union Lisp_Object.i): EMACS_INT, not EMACS_UINT.
This is for consistency with the ordinary, non-USE_LISP_UNION_TYPE,
implementation.
(compute_motion): Use it. This is just for clarity.
(Fcompute_motion): Don't assume hscroll and tab offset fit in int.
- * image.c (xbm_image_p): Don't assume stated width and height fit in int.
+ * image.c (xbm_image_p): Don't assume stated width, height fit in int.
* lisp.h (lint_assume): New macro.
* composite.c (composition_gstring_put_cache):
* fns.c (concat): Catch string overflow earlier.
Do not rely on integer wraparound.
- * dispextern.h (struct it.overlay_strings_charpos): EMACS_INT, not int.
-
-2011-06-17 Paul Eggert <eggert@cs.ucla.edu>
-
- * dispextern.h (struct it.selective): Now EMACS_INT, not int.
+ * dispextern.h (struct it.overlay_strings_charpos)
+ (struct it.selective): Now EMACS_INT, not int.
* xdisp.c (forward_to_next_line_start)
(back_to_previous_visible_line_start)
(reseat_at_next_visible_line_start, next_element_from_buffer):
(record_overlay_string): Check for size-calculation overflow.
(init_buffer_once): Check at compile-time, not run-time.
+2011-06-22 Jim Meyering <meyering@redhat.com>
+
+ don't leak an XBM-image-sized buffer
+ * image.c (xbm_load): Free the image buffer after using it.
+
+2011-06-21 Paul Eggert <eggert@cs.ucla.edu>
+
+ Port to Sun C.
+ * composite.c (find_automatic_composition): Omit needless 'return 0;'
+ that Sun C diagnosed.
+ * fns.c (secure_hash): Fix pointer signedness issue.
+ * intervals.c (static_offset_intervals): New function.
+ (offset_intervals): Use it.
+
+2011-06-21 Leo Liu <sdl.web@gmail.com>
+
+ * deps.mk (fns.o):
+ * makefile.w32-in ($(BLD)/fns.$(O)): Include sha256.h and
+ sha512.h.
+
+ * fns.c (secure_hash): Rename from crypto_hash_function and change
+ the first arg to accept symbols.
+ (Fsecure_hash): New primtive.
+ (syms_of_fns): New symbols.
+
+2011-06-20 Deniz Dogan <deniz@dogan.se>
+
+ * process.c (Fset_process_buffer): Clarify return value in
+ docstring.
+
+2011-06-18 Chong Yidong <cyd@stupidchicken.com>
+
+ * dispnew.c (add_window_display_history): Use BVAR.
+
+ * xdisp.c (debug_method_add): Use BVAR.
+ (check_window_end, dump_glyph_matrix, dump_glyph)
+ (dump_glyph_row, dump_glyph_string): Convert arglist to ANSI C.
+
+ * xfaces.c (check_lface_attrs, check_lface, dump_realized_face):
+ Likewise.
+
+ * xfns.c (Fx_create_frame, x_create_tip_frame): Delay image cache
+ check till after the cache is created in init_frame_faces.
+
+2011-06-17 Stefan Monnier <monnier@iro.umontreal.ca>
+
+ * fns.c (Fsafe_length): Yet another int/Lisp_Object mixup.
+
2011-06-16 Paul Eggert <eggert@cs.ucla.edu>
* lisp.h: Include <limits.h>, for INT_MAX, LONG_MAX, LLONG_MAX.