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In Linux, kernel parameters passed to ioctl are by value, while in FreeBSD

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they are passed by reference.  Handle the difference within the
linux_ioctl_termio on the LINUX_TCFLSH path.

Submitted by:	Jaroslav Drzik <jaro_AT_coop-voz_dot_sk>
This commit is contained in:
Xin LI 2005-12-13 15:32:52 +00:00
parent 15b7edbeaa
commit 1278dd6847
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=153378
1 changed files with 5 additions and 5 deletions
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10
sys/compat/linux/linux_ioctl.c
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@ -806,22 +806,22 @@ linux_ioctl_termio(struct thread *td, struct linux_ioctl_args *args)
}
case LINUX_TCFLSH: {
args->cmd = TIOCFLUSH;
int val;
switch (args->arg) {
case LINUX_TCIFLUSH:
args->arg = FREAD;
val = FREAD;
break;
case LINUX_TCOFLUSH:
args->arg = FWRITE;
val = FWRITE;
break;
case LINUX_TCIOFLUSH:
args->arg = FREAD | FWRITE;
val = FREAD | FWRITE;
break;
default:
fdrop(fp, td);
return (EINVAL);
}
error = (ioctl(td, (struct ioctl_args *)args));
error = (fo_ioctl(fp,TIOCFLUSH,(caddr_t)&val,td->td_ucred,td));
break;
}