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authorEli Zaretskii <eliz@gnu.org>1998-04-22 13:39:59 +0000
committerEli Zaretskii <eliz@gnu.org>1998-04-22 13:39:59 +0000
commit767079a8c6c282e63559f0e4a862546abd04db01 (patch)
tree5e24af8f22766bfdc3c106349b0612868686658b /src/w16select.c
parent306a5e68ac3e991ef4a5e970cfa357a26db42073 (diff)
downloademacs-767079a8c6c282e63559f0e4a862546abd04db01.tar.gz
(alloc_xfer_buf): If want_size is more than 1MB,
return immediately with failure. (Fw16_set_clipboard_data, Fw16_get_clipboard_data): Replace win16 with w16.
Diffstat (limited to 'src/w16select.c')
-rw-r--r--src/w16select.c15
1 files changed, 10 insertions, 5 deletions
diff --git a/src/w16select.c b/src/w16select.c
index 7ddda5a5a8e..a181c8466b6 100644
--- a/src/w16select.c
+++ b/src/w16select.c
@@ -1,4 +1,4 @@
-/* Win16 Selection processing for emacs on MS-Windows
+/* 16-bit Windows Selection processing for emacs on MS-Windows
Copyright (C) 1996, 1997 Free Software Foundation.
This file is part of GNU Emacs.
@@ -169,6 +169,11 @@ alloc_xfer_buf (want_size)
if (want_size <= _go32_info_block.size_of_transfer_buffer)
return __tb & 0xfffff;
+ /* Don't even try to allocate more than 1MB of memory: DOS cannot
+ possibly handle that (it will overflow the BX register below). */
+ if (want_size > 0xfffff)
+ return 0;
+
/* Need size rounded up to the nearest paragraph, and in
paragraph units (1 paragraph = 16 bytes). */
clipboard_xfer_buf_info.size = (want_size + 15) >> 4;
@@ -389,7 +394,7 @@ clipboard_compact (Size)
static char no_mem_msg[] =
"(Not enough DOS memory to put saved text into clipboard.)";
-DEFUN ("win16-set-clipboard-data", Fwin16_set_clipboard_data, Swin16_set_clipboard_data, 1, 2, 0,
+DEFUN ("w16-set-clipboard-data", Fw16_set_clipboard_data, Sw16_set_clipboard_data, 1, 2, 0,
"This sets the clipboard data to the given text.")
(string, frame)
Lisp_Object string, frame;
@@ -444,7 +449,7 @@ DEFUN ("win16-set-clipboard-data", Fwin16_set_clipboard_data, Swin16_set_clipboa
return (ok ? string : Qnil);
}
-DEFUN ("win16-get-clipboard-data", Fwin16_get_clipboard_data, Swin16_get_clipboard_data, 0, 1, 0,
+DEFUN ("w16-get-clipboard-data", Fw16_get_clipboard_data, Sw16_get_clipboard_data, 0, 1, 0,
"This gets the clipboard data in text format.")
(frame)
Lisp_Object frame;
@@ -540,8 +545,8 @@ and t is the same as `SECONDARY'.")
void
syms_of_win16select ()
{
- defsubr (&Swin16_set_clipboard_data);
- defsubr (&Swin16_get_clipboard_data);
+ defsubr (&Sw16_set_clipboard_data);
+ defsubr (&Sw16_get_clipboard_data);
defsubr (&Sx_selection_exists_p);
QPRIMARY = intern ("PRIMARY"); staticpro (&QPRIMARY);