xnu-792.10.96.tar.gz

[apple/xnu.git] / bsd / kern / kern_descrip.c

diff --git a/bsd/kern/kern_descrip.c b/bsd/kern/kern_descrip.c
index 1ec789877ebb6bda029ed592e256c7b7b20662c1..7cff95e667319edf10b73fe55e8db2ab4b82c318 100644 (file)
--- a/bsd/kern/kern_descrip.c
+++ b/bsd/kern/kern_descrip.c
@@ -106,7 +106,6 @@ int fdgetf_noref(struct proc *p, int fd, struct fileproc **resultfp);
 void fg_drop(struct fileproc * fp);
 void fg_free(struct fileglob *fg);
 void fg_ref(struct fileproc * fp);
-int fp_getfpshm(struct proc *p, int fd, struct fileproc **resultfp, struct pshmnode  **resultpshm);
 
 static int closef_finish(struct fileproc *fp, struct fileglob *fg, struct proc *p);
 
@@ -149,13 +148,11 @@ file_lock_init(void)
 
        /* allocate file lock group attribute and group */
        file_lck_grp_attr= lck_grp_attr_alloc_init();
-       lck_grp_attr_setstat(file_lck_grp_attr);
 
        file_lck_grp = lck_grp_alloc_init("file",  file_lck_grp_attr);
 
        /* Allocate file lock attribute */
        file_lck_attr = lck_attr_alloc_init();
-       //lck_attr_setdebug(file_lck_attr);
 
        uipc_lock = lck_mtx_alloc_init(file_lck_grp, file_lck_attr);
        file_iterate_lcok = lck_mtx_alloc_init(file_lck_grp, file_lck_attr);
@@ -1502,6 +1499,42 @@ fp_getfvp(p, fd, resultfp, resultvp)
 }
 
 
+
+int
+fp_getfvpandvid(p, fd, resultfp, resultvp, vidp)
+       struct proc *p;
+       int fd;
+       struct fileproc **resultfp;
+       struct vnode  **resultvp;
+       uint32_t * vidp;
+{
+       struct filedesc *fdp = p->p_fd;
+       struct fileproc *fp;
+
+       proc_fdlock(p);
+       if (fd < 0 || fd >= fdp->fd_nfiles ||
+                       (fp = fdp->fd_ofiles[fd]) == NULL ||
+                       (fdp->fd_ofileflags[fd] & UF_RESERVED)) {
+               proc_fdunlock(p);
+               return (EBADF);
+       }
+       if (fp->f_type != DTYPE_VNODE) {
+               proc_fdunlock(p);
+               return(ENOTSUP);
+       }
+       fp->f_iocount++;
+
+       if (resultfp)
+               *resultfp = fp;
+       if (resultvp)
+               *resultvp = (struct vnode *)fp->f_data;
+       if (vidp)
+               *vidp = (uint32_t)vnode_vid((struct vnode *)fp->f_data);
+       proc_fdunlock(p);
+
+       return (0);
+}
+
 /*
  * Returns:    EBADF                   The file descriptor is invalid
  *             EOPNOTSUPP              The file descriptor is not a socket
@@ -1640,6 +1673,74 @@ fp_getfpsem(p, fd, resultfp, resultpsem)
 
        return (0);
 }
+
+
+int
+fp_getfpipe(p, fd, resultfp, resultpipe)
+       struct proc *p;
+       int fd;
+       struct fileproc **resultfp;
+       struct pipe  **resultpipe;
+{
+       struct filedesc *fdp = p->p_fd;
+       struct fileproc *fp;
+
+       proc_fdlock(p);
+       if (fd < 0 || fd >= fdp->fd_nfiles ||
+                       (fp = fdp->fd_ofiles[fd]) == NULL ||
+                       (fdp->fd_ofileflags[fd] & UF_RESERVED)) {
+               proc_fdunlock(p);
+               return (EBADF);
+       }
+       if (fp->f_type != DTYPE_PIPE) {
+               proc_fdunlock(p);
+               return(EBADF);
+       }
+       fp->f_iocount++;
+
+       if (resultfp)
+               *resultfp = fp;
+       if (resultpipe)
+               *resultpipe = (struct pipe *)fp->f_data;
+       proc_fdunlock(p);
+
+       return (0);
+}
+
+
+#define DTYPE_ATALK -1
+int
+fp_getfatalk(p, fd, resultfp, resultatalk)
+       struct proc *p;
+       int fd;
+       struct fileproc **resultfp;
+       struct atalk  **resultatalk;
+{
+       struct filedesc *fdp = p->p_fd;
+       struct fileproc *fp;
+
+       proc_fdlock(p);
+       if (fd < 0 || fd >= fdp->fd_nfiles ||
+                       (fp = fdp->fd_ofiles[fd]) == NULL ||
+                       (fdp->fd_ofileflags[fd] & UF_RESERVED)) {
+               proc_fdunlock(p);
+               return (EBADF);
+       }
+       if (fp->f_type != (DTYPE_ATALK+1)) {
+               proc_fdunlock(p);
+               return(EBADF);
+       }
+       fp->f_iocount++;
+
+       if (resultfp)
+               *resultfp = fp;
+       if (resultatalk)
+               *resultatalk = (struct atalk *)fp->f_data;
+       proc_fdunlock(p);
+
+       return (0);
+}
+
 int
 fp_lookup(p, fd, resultfp, locked)
        struct proc *p;