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| author | robert <robert@FreeBSD.org> | 2002-02-26 10:22:25 +0000 |
|---|---|---|
| committer | robert <robert@FreeBSD.org> | 2002-02-26 10:22:25 +0000 |
| commit | 6ec282a1def19bae35445c0c0c7b6cb7d8512303 (patch) | |
| tree | cfb45059f7ba29ee95a6a8b852b8dfb762b5d4cb /usr.bin/doscmd | |
| parent | a3d52070880e115f522ee53be1b21889905c3b4b (diff) | |
| download | FreeBSD-src-6ec282a1def19bae35445c0c0c7b6cb7d8512303.zip FreeBSD-src-6ec282a1def19bae35445c0c0c7b6cb7d8512303.tar.gz | |
Avoid a null-pointer dereference which occurred when emulating DOS
interrupt 0x10 function 0x00 without dpy int tty.c being set.
PR: 35147
Submitted by: Stefan Farfeleder <e0026813@stud3.tuwien.ac.at>
Diffstat (limited to 'usr.bin/doscmd')
| -rw-r--r-- | usr.bin/doscmd/int10.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/usr.bin/doscmd/int10.c b/usr.bin/doscmd/int10.c index 183721a..1b33b4a 100644 --- a/usr.bin/doscmd/int10.c +++ b/usr.bin/doscmd/int10.c @@ -56,6 +56,8 @@ int10(regcontext_t *REGS) switch (R_AH) { case 0x00: /* Set display mode */ + if (!xmode) + goto unsupported; init_mode(R_AL); break; case 0x01: /* Define cursor */ |
