Add _PC_CASE_INSENSITIVE to [f]pathconf

Update the getconf utility to support the new flag as well as
_PC_POSIX_PERMISSIONS and _PC_POSIX_SECURITY.  These were previously
unsupported, probably as an oversight.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>

newlib/libc/include/sys/unistd.h

@@ -490,6 +490,7 @@ int	_EXFUN(unlinkat, (int, const char *, int));
 #define _PC_POSIX_PERMISSIONS            90
 /* Ask for full POSIX permission support including uid/gid settings. */
 #define _PC_POSIX_SECURITY               91
+#define _PC_CASE_INSENSITIVE             92
 #endif
 
 /*

winsup/cygwin/fhandler.cc

@@ -1891,6 +1891,8 @@ fhandler_base::fpathconf (int v)
 	return pc.has_acls () || pc.fs_is_nfs ();
       set_errno (EINVAL);
       break;
+    case _PC_CASE_INSENSITIVE:
+      return !!pc.objcaseinsensitive ();
     default:
       set_errno (EINVAL);
       break;

winsup/cygwin/include/cygwin/version.h

@@ -469,12 +469,13 @@ details. */
   302: Export nl_langinfo_l.
   303: Export pthread_getname_np, pthread_setname_np.
   304: Export strerror_l, strptime_l, wcsftime_l.
+  305: [f]pathconf flag _PC_CASE_INSENSITIVE added.
 
   Note that we forgot to bump the api for ualarm, strtoll, strtoull,
   sigaltstack, sethostname. */
 
 #define CYGWIN_VERSION_API_MAJOR 0
-#define CYGWIN_VERSION_API_MINOR 304
+#define CYGWIN_VERSION_API_MINOR 305
 
 /* There is also a compatibity version number associated with the shared memory
    regions.  It is incremented when incompatible changes are made to the shared

winsup/cygwin/release/2.6.1

@@ -1,6 +1,8 @@
 What's new:
 -----------
 
+- Add _PC_CASE_INSENSITIVE flag to [f]pathconf(3).
+
 
 What changed:
 -------------

winsup/utils/getconf.c

@@ -186,6 +186,7 @@ static const struct conf_variable conf_table[] =
   { "POSIX2_RE_DUP_MAX",		CONSTANT,	_POSIX2_RE_DUP_MAX	},
 
   /* Variables from fpathconf() */
+  { "CASE_INSENSITIVE",			PATHCONF,	_PC_CASE_INSENSITIVE	},
   { "FILESIZEBITS",			PATHCONF,	_PC_FILESIZEBITS	},
   { "LINK_MAX",				PATHCONF,	_PC_LINK_MAX		},
   { "MAX_CANON",			PATHCONF,	_PC_MAX_CANON		},
@@ -195,10 +196,12 @@ static const struct conf_variable conf_table[] =
   { "PIPE_BUF",				PATHCONF,	_PC_PIPE_BUF		},
   { "POSIX2_SYMLINKS",			PATHCONF,	_PC_2_SYMLINKS		},
   { "POSIX_ALLOC_SIZE_MIN",		PATHCONF,	_PC_ALLOC_SIZE_MIN	},
+  { "POSIX_PERMISSIONS",		PATHCONF,	_PC_POSIX_PERMISSIONS	},
   { "POSIX_REC_INCR_XFER_SIZE",		PATHCONF,	_PC_REC_INCR_XFER_SIZE	},
   { "POSIX_REC_MAX_XFER_SIZE",		PATHCONF,	_PC_REC_MAX_XFER_SIZE	},
   { "POSIX_REC_MIN_XFER_SIZE",		PATHCONF,	_PC_REC_MIN_XFER_SIZE	},
   { "POSIX_REC_XFER_ALIGN",		PATHCONF,	_PC_REC_XFER_ALIGN	},
+  { "POSIX_SECURITY",			PATHCONF,	_PC_POSIX_SECURITY	},
   { "SYMLINK_MAX",			PATHCONF,	_PC_SYMLINK_MAX		},
   { "_POSIX_CHOWN_RESTRICTED",		PATHCONF,	_PC_CHOWN_RESTRICTED	},
   { "_POSIX_NO_TRUNC",			PATHCONF,	_PC_NO_TRUNC		},