source: rtems/c/src/lib/libc/getdents.c @ 3ba74c73

4.104.114.84.95
Last change on this file since 3ba74c73 was 3ba74c73, checked in by Joel Sherrill <joel.sherrill@…>, on 11/01/00 at 21:08:14

2000-11-01 Joel Sherrill <joel@…>

  • include/Makefile.am, include/rtems/libio_.h, libc/Makefile.am, libc/assoc.c, libc/assocnamebad.c, libc/base_fs.c, libc/cfsetispeed.c, libc/cfsetospeed.c, libc/chdir.c, libc/chmod.c, libc/chown.c, libc/close.c, libc/closedir.c, libc/dup2.c, libc/error.c, libc/eval.c, libc/fchdir.c, libc/fchmod.c, libc/fcntl.c, libc/fdatasync.c, libc/fpathconf.c, libc/fstat.c, libc/fsync.c, libc/ftruncate.c, libc/getdents.c, libc/ioctl.c, libc/libio.c, libc/libio_sockets.c, libc/link.c, libc/lseek.c, libc/malloc.c, libc/mallocfreespace.c, libc/mknod.c, libc/mount.c, libc/newlibc.c, libc/no_libc.c, libc/open.c, libc/read.c, libc/readlink.c, libc/rmdir.c, libc/stat.c, libc/symlink.c, libc/tcsetattr.c, libc/telldir.c, libc/ttyname.c, libc/ttyname_r.c, libc/umask.c, libc/unlink.c, libc/unmount.c, libc/utime.c, libc/write.c: assoc.h, error.h, libio_.h, libio.h, and libcsupport.h moved from libc to lib/include/rtems and now must be referenced as <rtems/XXX.h>.
  • include/rtems/Makefile.am, include/rtems/.cvsignore: New file.
  • include/rtems/assoc.h, include/rtems/error.h, include/rtems/libcsupport.h, include/rtems/libio.h, include/rtems/libio_.h: New/moved files.
  • Property mode set to 100644
File size: 1.4 KB
Line 
1/*
2 *  getdents() - Get Directory Entries
3 *
4 *  SVR4 and SVID extension required by Newlib readdir() family.
5 *
6 *  This routine will dd_len / (sizeof dirent) directory entries relative to
7 *  the current directory position index. These entries will be placed in
8 *  character array pointed to by -dd_buf-
9 *
10 *  COPYRIGHT (c) 1989-1999.
11 *  On-Line Applications Research Corporation (OAR).
12 *
13 *  The license and distribution terms for this file may be
14 *  found in the file LICENSE in this distribution or at
15 *  http://www.OARcorp.com/rtems/license.html.
16 *
17 *  $Id$
18 */
19
20#include <errno.h>
21
22#include <rtems/libio_.h>
23
24int getdents(
25  int   dd_fd,
26  char *dd_buf,
27  int   dd_len
28)
29{
30  rtems_libio_t                    *iop;
31  rtems_filesystem_location_info_t  loc;
32
33  /*
34   *  Get the file control block structure associated with the file descriptor
35   */
36
37  iop = rtems_libio_iop( dd_fd );
38
39  /*
40   *  Make sure we are working on a directory
41   */
42  loc = iop->pathinfo;
43  if ( !loc.ops->node_type_h )
44    set_errno_and_return_minus_one( ENOTSUP );
45   
46  if ( (*loc.ops->node_type_h)( &loc ) != RTEMS_FILESYSTEM_DIRECTORY )
47    set_errno_and_return_minus_one( ENOTDIR );
48
49  /*
50   *  Return the number of bytes that were actually transfered as a result
51   *  of the read attempt.
52   */
53
54  if ( !iop->handlers->read_h )
55    set_errno_and_return_minus_one( ENOTSUP );
56
57  return (*iop->handlers->read_h)( iop, dd_buf, dd_len  );
58}
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