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| author | Eli Zaretskii <eliz@gnu.org> | 2019-04-15 18:05:52 +0300 |
|---|---|---|
| committer | Eli Zaretskii <eliz@gnu.org> | 2019-04-15 18:05:52 +0300 |
| commit | 70ec3928666353b69efae1bdc831d704fa505e72 (patch) | |
| tree | b84519a00dbfbe4943fd19d0f6d5aff58d0ddd19 /src/msdos.c | |
| parent | 7a608fc6f3ded3e615e7accb29f16bfd290d80a1 (diff) | |
| download | emacs-70ec3928666353b69efae1bdc831d704fa505e72.tar.gz | |
Fix the MSDOS build when running under CWSDPMI
* src/msdos.c (the_only_tty_output): Define.
* src/msdos.h (the_only_tty_output): Declare.
* src/frame.c (make_terminal_frame) [MSDOS]:
* src/dispnew.c (init_display) [MSDOS]: Set up
f->output_data.tty pointer using the_only_tty_output, before
dereferencing the pointer. This prevents crashes with DPMI
servers that provide NULL pointer protection.
Diffstat (limited to 'src/msdos.c')
| -rw-r--r-- | src/msdos.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/msdos.c b/src/msdos.c index 3645dc8bb30..4367da4714d 100644 --- a/src/msdos.c +++ b/src/msdos.c @@ -420,6 +420,9 @@ static unsigned short outside_cursor; /* The only display since MS-DOS does not support multiple ones. */ struct tty_display_info the_only_display_info; +/* The only tty_output, since MS-DOS supports only 1 display. */ +struct tty_output the_only_tty_output; + /* Support for DOS/V (allows Japanese characters to be displayed on standard, non-Japanese, ATs). Only supported for DJGPP v2 and later. */ |