/*

 * Copyright 2008-2009 Sun Microsystems, Inc.  All Rights Reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Sun designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Sun in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

 * CA 95054 USA or visit www.sun.com if you need additional information or

 * have any questions.

 */

#include <stdio.h>

#include <errno.h>

#include <unistd.h>

#include <sys/fcntl.h>

#include <sys/stat.h>

/**

 * Generates sun.nio.fs.UnixConstants

 */

static void out(char* s) {

    printf("%s\n", s);

}

static void emit(char* name, int value) {

    printf("    static final int %s = %d;\n", name, value);

}

static void emitX(char* name, int value) {

    printf("    static final int %s = 0x%x;\n", name, value);

}

#define DEF(X) emit(#X, X);

#define DEFX(X) emitX(#X, X);

int main(int argc, const char* argv[]) {

    out("// AUTOMATICALLY GENERATED FILE - DO NOT EDIT                                  ");

    out("package sun.nio.fs;                                                            ");

    out("class UnixConstants {                                                          ");

    out("    private UnixConstants() { }                                                ");

    // open flags

    DEF(O_RDONLY);

    DEF(O_WRONLY);

    DEF(O_RDWR);

    DEFX(O_APPEND);

    DEFX(O_CREAT);

    DEFX(O_EXCL);

    DEFX(O_TRUNC);

    DEFX(O_SYNC);

    DEFX(O_DSYNC);

    DEFX(O_NOFOLLOW);

    // flags used with openat/unlinkat/etc.

#ifdef __solaris__

    DEFX(AT_SYMLINK_NOFOLLOW);

    DEFX(AT_REMOVEDIR);

#endif

#ifdef __linux__

    emitX("AT_SYMLINK_NOFOLLOW", 0x100);        // since 2.6.16

    emitX("AT_REMOVEDIR", 0x200);

#endif

    // mode masks

    emitX("S_IAMB",

         (S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IWGRP|S_IXGRP|S_IROTH|S_IWOTH|S_IXOTH));

    DEF(S_IRUSR);

    DEF(S_IWUSR);

    DEF(S_IXUSR);

    DEF(S_IRGRP);

    DEF(S_IWGRP);

    DEF(S_IXGRP);

    DEF(S_IROTH);

    DEF(S_IWOTH);

    DEF(S_IXOTH);

    DEFX(S_IFMT);

    DEFX(S_IFREG);

    DEFX(S_IFDIR);

    DEFX(S_IFLNK);

    DEFX(S_IFCHR);

    DEFX(S_IFBLK);

    DEFX(S_IFIFO);

    // access modes

    DEF(R_OK);

    DEF(W_OK);

    DEF(X_OK);

    DEF(F_OK);

    // errors

    DEF(ENOENT);

    DEF(EACCES);

    DEF(EEXIST);

    DEF(ENOTDIR);

    DEF(EINVAL);

    DEF(EXDEV);

    DEF(EISDIR);

    DEF(ENOTEMPTY);

    DEF(ENOSPC);

    DEF(EAGAIN);

    DEF(ENOSYS);

    DEF(ELOOP);

    DEF(EROFS);

    DEF(ENODATA);

    DEF(ERANGE);

    out("}                                                                              ");

    return 0;

}