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Annotation of linux/fs/ioctl.c, revision 1.1.1.10

1.1.1.2   root        1: /*
                      2:  *  linux/fs/ioctl.c
                      3:  *
1.1.1.10! root        4:  *  Copyright (C) 1991, 1992  Linus Torvalds
1.1.1.2   root        5:  */
                      6: 
1.1.1.10! root        7: #include <asm/segment.h>
1.1       root        8: 
1.1.1.10! root        9: #include <linux/sched.h>
        !            10: #include <linux/errno.h>
1.1.1.9   root       11: #include <linux/string.h>
1.1.1.8   root       12: #include <linux/stat.h>
1.1       root       13: 
                     14: int sys_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg)
                     15: {      
                     16:        struct file * filp;
1.1.1.10! root       17:        int block;
1.1       root       18: 
                     19:        if (fd >= NR_OPEN || !(filp = current->filp[fd]))
                     20:                return -EBADF;
1.1.1.10! root       21:        if (S_ISREG(filp->f_inode->i_mode) && cmd == BMAP_IOCTL &&
        !            22:            filp->f_inode->i_op->bmap) {
        !            23:                block = get_fs_long((long *) arg);
        !            24:                block = filp->f_inode->i_op->bmap(filp->f_inode,block);
        !            25:                put_fs_long(block,(long *) arg);
        !            26:                return 0;
        !            27:        }
1.1.1.7   root       28:        if (filp->f_op && filp->f_op->ioctl)
                     29:                return filp->f_op->ioctl(filp->f_inode, filp, cmd,arg);
                     30:        return -EINVAL;
1.1       root       31: }

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