StdLib: Add isDirSep character classification macro and function. Implement several Posix functions and clean up EfiSysCall.h. Align file mode handling with UEFI file protocol flags.

Include/ctype.h:             Function declaration and Macro definition of isDirSep
Include/unistd.h:            Declarations added from EfiSysCall.h
Include/utime.h:             New file.  For the Posix utime() function.
Include/sys/_ctype.h:        Update character class bit maps.
Include/sys/EfiSysCall.h:    Move declarations to unistd.h
Include/sys/fcntl.h:         Improve comments.  Add UEFI-specific macros.
Include/sys/filio.h:         Remove declarations for unsupported file ioctls.
Include/sys/stat.h:          Fix flags.  Add macros and declarations.
Include/sys/time.h:          Add declarations for new functions Tm2Efi() and Time2Efi().
Include/sys/types.h:         Use EFI-specific instead of BSD-specific definitions for typedefs.
Include/sys/unistd.h:        Delete inappropriate content.  Guard macro definitions.

LibC/Locale/setlocale.c
LibC/Stdio/{fdopen.c, findfp.c, fopen.c, freopen.c, gettemp.c, makebuf.c, mktemp.c,
            remove.c, stdio.c, tempnam.c, tmpfile.c, tmpnam.c}
LibC/Time/{itimer.c, ZoneProc.c}
LibC/Uefi/SysCalls.c
LibC/Uefi/Devices/Console/daConsole.c
LibC/Uefi/Devices/UefiShell/daShell.c
PosixLib/Gen/readdir.c
                             Include unistd.h instead of EfiSysCall.h

LibC/Ctype/CClass.c:         Character classification function implementation for isDirSep.
LibC/Ctype/iCtype.c:         Update character classification and case conversion tables.
LibC/Time/TimeEfi.c:         Improve comments.  Implement new functions Tm2Efi() and Time2Efi().
LibC/Uefi/StubFunctions.c:   Add missing include.  Cosmetic changes to declarations.
LibC/Uefi/SysCalls.c:        Add support function for utime().
LibC/Uefi/Uefi.inf:          Add LibGen library class dependency.
LibC/Uefi/Xform.c:           Enhance Omode2EFI().
LibC/Uefi/Devices/UefiShell/daShell.c:    Enhance da_ShellMkdir.  Implement da_ShellIoctl to set file times.
PosixLib/Gen/access.c:       New file.  Implement the access() function.
PosixLib/Gen/dirname.c:      Enhance to use isDirSep and differentiate between the device, path, and filename components of UEFI Shell-style paths.
PosixLib/Gen/utime.c:        New file.  Implement the utime() function.
PosixLib/Gen/LibGen.inf:     Change MODULE_TYPE.  Add new files.

Signed-off-by: darylm503
Reviewed-by: geekboy15a
Reviewed-by: jljusten
Reviewed-by: Rahul Khana
Reviewed-by: leegrosenbaum


git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12800 6f19259b-4bc3-4df7-8a09-765794883524

StdLib/Include/ctype.h

@@ -171,6 +171,20 @@ int isxdigit(int c);
 **/
 int isascii(int c);
 
+/** Test whether a character is one of the characters used as a separator
+    between directory elements in a path.
+
+    Characters are '/', '\\'
+
+    This non-standard function is unique to this implementation.
+
+    @param[in]    c   The character to be tested.
+
+    @return   Returns nonzero (true) if and only if the value of the parameter c
+              can be classified as specified in the description of the function.
+**/
+int isDirSep(int c);
+
 /** The tolower function converts an uppercase letter to a corresponding
     lowercase letter.
 
@@ -218,6 +232,7 @@ __END_DECLS
   #define isspace(c)    (__isCClass( (int)c, (_CW)))
   #define isupper(c)    (__isCClass( (int)c, (_CU)))
   #define isxdigit(c)   (__isCClass( (int)c, (_CD | _CX)))
+  #define isDirSep(c)   (__isCClass( (int)c, (_C0)))
   #define tolower(c)    (__toLower((int)c))
   #define toupper(c)    (__toUpper((int)c))
 #endif  /* NO_CTYPE_MACROS */