1 files changed, 46 insertions, 0 deletions

diff --git a/src/fs/ioctl.c b/src/fs/ioctl.c
new file mode 100644
index 0000000..47ce3cb
--- /dev/null
+++ b/src/fs/ioctl.c
@@ -0,0 +1,46 @@
+/*
+ *  linux/fs/ioctl.c
+ *
+ *  (C) 1991  Linus Torvalds
+ */
+
+/* #include <string.h>*/
+#include <errno.h>
+#include <sys/stat.h>
+
+#include <linux/sched.h>
+
+extern int tty_ioctl(int dev, int cmd, int arg);
+
+typedef int (*ioctl_ptr)(int dev,int cmd,int arg);
+
+#define NRDEVS ((sizeof (ioctl_table))/(sizeof (ioctl_ptr)))
+
+static ioctl_ptr ioctl_table[]={
+        NULL,           /* nodev */
+        NULL,           /* /dev/mem */
+        NULL,           /* /dev/fd */
+        NULL,           /* /dev/hd */
+        tty_ioctl,      /* /dev/ttyx */
+        tty_ioctl,      /* /dev/tty */
+        NULL,           /* /dev/lp */
+        NULL};          /* named pipes */
+        
+
+int sys_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg)
+{       
+        struct file * filp;
+        int dev,mode;
+
+        if (fd >= NR_OPEN || !(filp = current->filp[fd]))
+                return -EBADF;
+        mode=filp->f_inode->i_mode;
+        if (!S_ISCHR(mode) && !S_ISBLK(mode))
+                return -EINVAL;
+        dev = filp->f_inode->i_zone[0];
+        if (MAJOR(dev) >= NRDEVS)
+                return -ENODEV;
+        if (!ioctl_table[MAJOR(dev)])
+                return -ENOTTY;
+        return ioctl_table[MAJOR(dev)](dev,cmd,arg);
+}