forked from Imagelibrary/rtems
9c3fa30a11
* libc/libio.h (rtems_filesystem_file_handlers_r, rtems_filesystem_operations_table): Added _h to all structure fields to indicate they are "handlers". * libc/libio_.h, libc/chdir.c, libc/chmod.c, libc/chown.c, libc/close.c, libc/eval.c, libc/fchdir.c, libc/fchmod.c, libc/fcntl.c, libc/fdatasync.c, libc/fstat.c, libc/fsync.c, libc/ftruncate.c, libc/getdents.c, libc/imfs_eval.c, libc/imfs_unlink.c, libc/ioctl.c, libc/ioman.c, libc/link.c, libc/lseek.c, libc/mknod.c, libc/mount.c, libc/open.c, libc/read.c, libc/readlink.c, libc/rmdir.c, libc/stat.c, libc/symlink.c, libc/unlink.c, libc/unmount.c, libc/utime.c, libc/write.c: Modified to reflect above name change.
107 lines
2.5 KiB
C
107 lines
2.5 KiB
C
/*
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* This file emulates the old Classic RTEMS IO manager directives
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* which register and lookup names using the in-memory filesystem.
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*
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* COPYRIGHT (c) 1989-1999.
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* On-Line Applications Research Corporation (OAR).
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.OARcorp.com/rtems/license.html.
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*
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* $Id$
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*/
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <assert.h>
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#include <rtems.h>
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#include "libio_.h"
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#include "imfs.h"
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#if defined(__linux__)
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#define S_IFCHR __S_IFCHR
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#endif
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/*
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* rtems_io_register_name
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*
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* This assumes that all registered devices are character devices.
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*/
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rtems_status_code rtems_io_register_name(
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char *device_name,
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rtems_device_major_number major,
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rtems_device_minor_number minor
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)
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{
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#if !defined(RTEMS_UNIX)
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int status;
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dev_t dev;
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dev = rtems_filesystem_make_dev_t( major, minor );
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status = mknod( device_name, 0777 | S_IFCHR, dev );
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/* this is the only error returned by the old version */
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if ( status )
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return RTEMS_TOO_MANY;
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#endif
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return RTEMS_SUCCESSFUL;
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}
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/*
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* rtems_io_lookup_name
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*
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* This version is not reentrant.
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*
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* XXX - This is dependent upon IMFS and should not be.
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* Suggest adding a filesystem routine to fill in the device_info.
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*/
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rtems_status_code rtems_io_lookup_name(
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const char *name,
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rtems_driver_name_t **device_info
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)
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{
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#if !defined(RTEMS_UNIX)
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IMFS_jnode_t *the_jnode;
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rtems_filesystem_location_info_t loc;
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static rtems_driver_name_t device;
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int result;
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rtems_filesystem_node_types_t node_type;
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result = rtems_filesystem_evaluate_path( name, 0x00, &loc, TRUE );
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the_jnode = loc.node_access;
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if ( !loc.ops->node_type_h ) {
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rtems_filesystem_freenode( &loc );
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set_errno_and_return_minus_one( ENOTSUP );
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}
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node_type = (*loc.ops->node_type_h)( &loc );
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if ( (result != 0) || node_type != RTEMS_FILESYSTEM_DEVICE ) {
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*device_info = 0;
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rtems_filesystem_freenode( &loc );
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return RTEMS_UNSATISFIED;
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}
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device.device_name = (char *) name;
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device.device_name_length = strlen( name );
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device.major = the_jnode->info.device.major;
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device.minor = the_jnode->info.device.minor;
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*device_info = &device;
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rtems_filesystem_freenode( &loc );
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#endif
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return RTEMS_SUCCESSFUL;
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}
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