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Fixed the broken ioctl() function. Unlike BeOS, it also passes the

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eventually specified length parameter.
The IOCPARM_LEN() macro should be used by the device/file system
implementation only if applicable.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@7828 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler
2004-06-08 05:53:35 +00:00
parent 1bfc2c6901
commit 39f34cf425
1 changed files with 9 additions and 5 deletions
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src/kernel/libroot/posix/unistd/ioctl.c
+9 -5
View File
@@ -1,12 +1,11 @@
/* /*
** Copyright 2002, Axel Dörfler, [email protected]. All rights reserved. ** Copyright 2002-2004, Axel Dörfler, [email protected]. All rights reserved.
** Distributed under the terms of the OpenBeOS License. ** Distributed under the terms of the OpenBeOS License.
*/ */
#include <unistd.h> #include <unistd.h>
#include <syscalls.h> #include <syscalls.h>
#include <sys/ioctl.h>
#include <stdarg.h> #include <stdarg.h>
#include <errno.h> #include <errno.h>
@@ -23,12 +22,17 @@ int
ioctl(int fd, ulong cmd, ...) ioctl(int fd, ulong cmd, ...)
{ {
va_list args; va_list args;
int err; void *argument;
size_t size;
int status;
va_start(args, cmd); va_start(args, cmd);
err = sys_ioctl(fd, cmd, args, IOCPARM_LEN(cmd)); argument = va_arg(args, void *);
size = va_arg(args, size_t);
va_end(args); va_end(args);
RETURN_AND_SET_ERRNO(err) status = sys_ioctl(fd, cmd, argument, size);
RETURN_AND_SET_ERRNO(status)
} }