StdLib: Add directory access functions to PosixLib.

Update <dirent.h> and <sys/dirent.h> to latest version.
Enable the tempnam function.
Fix assignments within predicate expressions so that it is clear where assignment is intended and where comparison occurs.
Remove internal.h and DirFunctions.c with its non-portable opendir, closedir, and readdir functions.
Add modified versions of the NetBSD opendir, closedir, and readdir functions.
Fix the declaration of stat() to be standards compliant and consistent with code.

Clean up indentation and declarations of non-existent objects.


Signed-off-by: darylm503
Reviewed-by: lgrosenb
Reviewed-by: lpleahy
Reviewed-by: jljusten


git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12649 6f19259b-4bc3-4df7-8a09-765794883524

4 files changed, 143 insertions, 13 deletions

diff --git a/StdLib/Include/dirent.h b/StdLib/Include/dirent.h
index 859f4d5..d67a9e7 100644
--- a/StdLib/Include/dirent.h
+++ b/StdLib/Include/dirent.h
@@ -4,7 +4,7 @@
     The information is based upon the EFI_FILE_INFO structure

     in MdePkg/Include/Guid/FileInfo.h.

 

-    Copyright (c) 2010, Intel Corporation. All rights reserved.<BR>

+    Copyright (c) 2010 - 2011, Intel Corporation. All rights reserved.<BR>

     This program and the accompanying materials

     are licensed and made available under the terms and conditions of the BSD License

     which accompanies this distribution.  The full text of the license may be found at

@@ -13,10 +13,94 @@
     THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,

     WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.

 

+    Copyright (c) 1989, 1993

+    The Regents of the University of California.  All rights reserved.

+

+    Redistribution and use in source and binary forms, with or without

+    modification, are permitted provided that the following conditions

+    are met:

+    1. Redistributions of source code must retain the above copyright

+      notice, this list of conditions and the following disclaimer.

+    2. Redistributions in binary form must reproduce the above copyright

+      notice, this list of conditions and the following disclaimer in the

+      documentation and/or other materials provided with the distribution.

+    3. Neither the name of the University nor the names of its contributors

+      may be used to endorse or promote products derived from this software

+      without specific prior written permission.

+

+    THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND

+    ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

+    ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE

+    FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

+    DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

+    OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

+    HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

+    LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY

+    OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

+    SUCH DAMAGE.

+

+    NetBSD: dirent.h,v 1.30 2008/01/09 20:55:03 christos Exp

+    @(#)dirent.h  8.2 (Berkeley) 7/28/94

 **/

 #ifndef _DIRENT_H_

 #define _DIRENT_H_

 

+#include <sys/featuretest.h>

+#include <sys/types.h>

+

 #include <sys/dirent.h>

 

+typedef struct _dirdesc DIR;

+

+/* definitions for library routines operating on directories. */

+#define DIRBLKSIZ 1024

+

+/* structure describing an open directory. */

+struct _dirdesc {

+  int     dd_fd;          /* file descriptor associated with directory */

+  long    dd_loc;         /* offset in current buffer */

+  long    dd_size;        /* amount of data returned by getdents */

+  char   *dd_buf;         /* data buffer */

+  int     dd_len;         /* size of data buffer */

+  off_t   dd_seek;        /* magic cookie returned by getdents */

+  void   *dd_internal;    /* state for seekdir/telldir */

+  int     dd_flags;       /* flags for readdir */

+  void   *dd_lock;        /* lock for concurrent access */

+};

+

+#define dirfd(dirp) ((dirp)->dd_fd)

+

+/* flags for __opendir2() */

+#define DTF_HIDEW       0x0001  /* hide whiteout entries */

+#define DTF_NODUP       0x0002  /* don't return duplicate names */

+#define DTF_REWIND      0x0004  /* rewind after reading union stack */

+#define __DTF_READALL   0x0008  /* everything has been read */

+

+#include <sys/cdefs.h>

+

+__BEGIN_DECLS

+  int             closedir(DIR *);

+  void            rewinddir(DIR *);

+

+  DIR            *opendir(const char *)                                       __RENAME(__opendir30);

+  struct dirent  *readdir(DIR *)                                              __RENAME(__readdir30);

+  int             readdir_r(DIR * __restrict, struct dirent * __restrict,

+                            struct dirent ** __restrict)                      __RENAME(__readdir_r30);

+

+  void            seekdir(DIR *, long);

+  long            telldir(DIR *);

+  DIR            *__opendir2(const char *, int)                               __RENAME(__opendir230);

+

+  //#ifndef __LIBC12_SOURCE__

+  //int             scandir(const char *, struct dirent ***,

+  //                        int (*)(const struct dirent *), int (*)(const void *,

+  //                        const void *))  __RENAME(__scandir30);

+  //int             getdents(int, char *, size_t) __RENAME(__getdents30);

+  //#endif

+

+  //int             alphasort(const void *, const void *);

+__END_DECLS

+

+

 #endif /* _DIRENT_H_ */

diff --git a/StdLib/Include/stdio.h b/StdLib/Include/stdio.h
index 666e190..5902266 100644
--- a/StdLib/Include/stdio.h
+++ b/StdLib/Include/stdio.h
@@ -1496,7 +1496,7 @@ __BEGIN_DECLS
   int   mkstemp(char *);

   char *mktemp(char *);

 

-    char *tempnam(const char *, const char *);

+  char *tempnam(const char *, const char *);

 __END_DECLS

 

 /*

diff --git a/StdLib/Include/sys/dirent.h b/StdLib/Include/sys/dirent.h
index 14c67ae..64b46e4 100644
--- a/StdLib/Include/sys/dirent.h
+++ b/StdLib/Include/sys/dirent.h
@@ -59,18 +59,22 @@
  *

  * All names are wide characters and are guaranteed to be null terminated.

  * The maximum length of a name in a directory is MAXNAMLEN.

+ *

+ *  This structure is identical to the EFI_FILE_INFO structure.  A new

+ *  structure is declared because one must be able to refer to it

+ *  as struct dirent.

  */

 struct dirent {

-  UINT64    Size;               // Size of this dirent structure instance,

-                                  // including the Null-terminated FileName string.

-  UINT64    FileSize;           // The size of the file in bytes.

-  UINT64    PhysicalSize;       // The amount of physical space the file consumes

-                                  // on the file system volume.

-  UINT64    Attribute;          // The time the file was created.

-  struct timespec  CreateTime;         // The time when the file was last accessed.

-  struct timespec  LastAccessTime;     // The time when the file's contents were last modified.

-  struct timespec  ModificationTime;   // The attribute bits for the file. See below.

-  CHAR16    FileName[1];         // The Null-terminated name of the file.

+  UINT64            Size;               // (d_reclen) Size of this dirent structure instance,

+                                        // including the Null-terminated FileName string.

+  UINT64            FileSize;           // The size of the file in bytes.

+  UINT64            PhysicalSize;       // The amount of physical space the file consumes

+                                        // on the file system volume.

+  struct timespec   CreateTime;         // The time the file was created.

+  struct timespec   LastAccessTime;     // The time when the file was last accessed.

+  struct timespec   ModificationTime;   // The time when the file's contents were last modified.

+  UINT64            Attribute;          // (d_type)   The attribute bits for the file. See below.

+  CHAR16            FileName[1];        // (d_name)   The Null-terminated name of the file.

 };

 

 /*

@@ -88,4 +92,46 @@ struct dirent {
 #define DT_SOCKET     0x0000000000030000  // File attaches to a socket

 #define DT_VALID_ATTR 0x0000000000030037  // Mask for valid attribute bits

 

+/*

+ * The _DIRENT_ALIGN macro returns the alignment of struct dirent.

+ * struct dirent uses 8.

+ */

+#define _DIRENT_ALIGN(dp) (sizeof((dp)->Size) - 1)

+

+/*

+ * The _DIRENT_NAMEOFF macro returns the offset of the d_name field in

+ * struct dirent

+ */

+#define _DIRENT_NAMEOFF(dp) \

+    ((char *)(void *)&(dp)->FileName - (char *)(void *)dp)

+

+/*

+ * The _DIRENT_RECLEN macro gives the minimum record length which will hold

+ * a name of size "namlen".  This requires the amount of space in struct dirent

+ * without the d_name field, plus enough space for the name with a terminating

+ * null byte (namlen+1), rounded up to a the appropriate byte boundary.

+ */

+#define _DIRENT_RECLEN(dp, namlen) \

+    ((_DIRENT_NAMEOFF(dp) + (namlen) + 1 + _DIRENT_ALIGN(dp)) & \

+    ~_DIRENT_ALIGN(dp))

+

+#define _DIRENT_NAMELEN(dp) \

+          ((dp)->Size - _DIRENT_NAMEOFF(dp) - 1)

+

+/*

+ * The _DIRENT_SIZE macro returns the minimum record length required for

+ * name name stored in the current record.

+ */

+#define _DIRENT_SIZE(dp) _DIRENT_RECLEN(dp, _DIRENT_NAMELEN(dp))

+

+/*

+ * The _DIRENT_NEXT macro advances to the next dirent record.

+ */

+#define _DIRENT_NEXT(dp) ((void *)((char *)(void *)(dp) + (dp)->Size))

+

+/*

+ * The _DIRENT_MINSIZE returns the size of an empty (invalid) record.

+ */

+#define _DIRENT_MINSIZE(dp) _DIRENT_RECLEN(dp, 0)

+

 #endif  /* !_SYS_DIRENT_H_ */

diff --git a/StdLib/Include/sys/stat.h b/StdLib/Include/sys/stat.h
index 9330a2b..f953858 100644
--- a/StdLib/Include/sys/stat.h
+++ b/StdLib/Include/sys/stat.h
@@ -183,7 +183,7 @@ __BEGIN_DECLS
 

   /**

   **/

-  extern int      stat      (const char *, void *);

+  extern int      stat      (const char *, struct stat *);

 

   /**

   **/