/** @file
 * IPRT - errno.h wrapper.
 */

/*
 * Copyright (C) 2012-2025 Oracle and/or its affiliates.
 *
 * This file is part of VirtualBox base platform packages, as
 * available from https://www.virtualbox.org.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation, in version 3 of the
 * License.
 *
 * This program 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 for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see <https://www.gnu.org/licenses>.
 *
 * The contents of this file may alternatively be used under the terms
 * of the Common Development and Distribution License Version 1.0
 * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
 * in the VirtualBox distribution, in which case the provisions of the
 * CDDL are applicable instead of those of the GPL.
 *
 * You may elect to license modified versions of this file under the
 * terms and conditions of either the GPL or the CDDL or both.
 *
 * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
 */

#ifndef IPRT_INCLUDED_errno_h
#define IPRT_INCLUDED_errno_h
#ifndef RT_WITHOUT_PRAGMA_ONCE
# pragma once
#endif

#ifndef IPRT_NO_CRT
# if defined(RT_OS_DARWIN) && defined(KERNEL)
#  include <sys/errno.h>
# elif defined(RT_OS_LINUX) && defined(__KERNEL__)
#  include <linux/errno.h>
# elif defined(RT_OS_FREEBSD) && defined(_KERNEL)
#  include <sys/errno.h>
# elif defined(RT_OS_NETBSD) && defined(_KERNEL)
#  include <sys/errno.h>
# else
#  include <errno.h>
# endif
#endif


/*
 * Supply missing errno values according to the current RT_OS_XXX definition.
 *
 * Note! These supplements are for making no-CRT mode, as well as making UNIXy
 *       code that makes used of odd errno defines internally, work smoothly.
 *
 * When adding more error codes, always check the following errno.h sources:
 *  - RT_OS_DARWIN:  http://fxr.watson.org/fxr/source/bsd/sys/errno.h?v=xnu-1699.24.8
 *  - RT_OS_FREEBSD: http://fxr.watson.org/fxr/source/sys/errno.h?v=DFBSD
 *  - RT_OS_NETBSD:  http://fxr.watson.org/fxr/source/sys/errno.h?v=NETBSD
 *  - RT_OS_OPENBSD: http://fxr.watson.org/fxr/source/sys/errno.h?v=OPENBSD
 *  - RT_OS_OS2:     http://svn.netlabs.org/libc/browser/trunk/libc/include/sys/errno.h
 *  - RT_OS_LINUX:   http://fxr.watson.org/fxr/source/include/asm-generic/errno.h?v=linux-2.6
 *  - RT_OS_SOLARIS: http://fxr.watson.org/fxr/source/common/sys/errno.h?v=OPENSOLARIS
 *  - RT_OS_WINDOWS: tools/win.x86/vcc/v8sp1/include/errno.h
 */

#if defined(RT_OS_DARWIN) \
 || defined(RT_OS_FREEBSD) \
 || defined(RT_OS_NETBSD) \
 || defined(RT_OS_OPENBSD) \
 || defined(RT_OS_OS2)
# define RT_ERRNO_OS_BSD
#endif
#ifdef RT_OS_SOLARIS
# define RT_ERRNO_OS_SYSV_HARDCORE /* ?? */
#endif

/* The relatively similar part. */
#ifndef EPERM
# define EPERM                  (1)
#endif
#ifndef ENOENT
# define ENOENT                 (2)
#endif
#ifndef ESRCH
# define ESRCH                  (3)
#endif
#ifndef EINTR
# define EINTR                  (4)
#endif
#ifndef EIO
# define EIO                    (5)
#endif
#ifndef ENXIO
# define ENXIO                  (6)
#endif
#ifndef E2BIG
# define E2BIG                  (7)
#endif
#ifndef ENOEXEC
# define ENOEXEC                (8)
#endif
#ifndef EBADF
# define EBADF                  (9)
#endif
#ifndef ECHILD
# define ECHILD                 (10)
#endif
#ifndef EAGAIN
# if defined(RT_ERRNO_OS_BSD)
#  define EAGAIN                (35)
# else
#  define EAGAIN                (11)
# endif
#endif
#ifndef EWOULDBLOCK
# define EWOULDBLOCK            EAGAIN
#endif
#ifndef EDEADLK
# if defined(RT_ERRNO_OS_BSD)
#  define EDEADLK               (11)
# elif defined(RT_OS_LINUX)
#  define EDEADLK               (35)
# elif defined(RT_OS_WINDOWS)
#  define EDEADLK               (36)
# else
#  define EDEADLK               (45)    /* solaris */
# endif
#endif
#ifndef EDEADLOCK
# define EDEADLOCK              EDEADLK
#endif
#ifndef ENOMEM
# define ENOMEM                 (12)
#endif
#ifndef EACCES
# define EACCES                 (13)
#endif
#ifndef EFAULT
# define EFAULT                 (14)
#endif
#ifndef ENOTBLK
# define ENOTBLK                (15)
#endif
#ifndef EBUSY
# define EBUSY                  (16)
#endif
#ifndef EEXIST
# define EEXIST                 (17)
#endif
#ifndef EXDEV
# define EXDEV                  (18)
#endif
#ifndef ENODEV
# define ENODEV                 (19)
#endif
#ifndef ENOTDIR
# define ENOTDIR                (20)
#endif
#ifndef EISDIR
# define EISDIR                 (21)
#endif
#ifndef EINVAL
# define EINVAL                 (22)
#endif
#ifndef ENFILE
# define ENFILE                 (23)
#endif
#ifndef EMFILE
# define EMFILE                 (24)
#endif
#ifndef ENOTTY
# define ENOTTY                 (25)
#endif
#ifndef ETXTBSY
# define ETXTBSY                (26)
#endif
#ifndef EFBIG
# define EFBIG                  (27)
#endif
#ifndef ENOSPC
# define ENOSPC                 (28)
#endif
#ifndef ESPIPE
# define ESPIPE                 (29)
#endif
#ifndef EROFS
# define EROFS                  (30)
#endif
#ifndef EMLINK
# define EMLINK                 (31)
#endif
#ifndef EPIPE
# define EPIPE                  (32)
#endif
#ifndef EDOM
# define EDOM                   (33)
#endif
#ifndef ERANGE
# define ERANGE                 (34)
#endif

/* 35 - also EAGAIN on BSD and EDEADLK on Linux. */
#ifndef ENOMSG
# if defined(RT_OS_DARWIN)
#  define ENOMSG                (91)
# elif defined(RT_OS_FREEBSD)
#  define ENOMSG                (83)
# elif defined(RT_OS_LINUX)
#  define ENOMSG                (42)
# elif defined(RT_OS_WINDOWS)
#  define ENOMSG                (122)
# else
#  define ENOMSG                (35)
# endif
#endif

/* 36 - Also EDEADLK on Windows.  */
#ifndef EIDRM
# if defined(RT_OS_DARWIN)
#  define EIDRM                 (90)
# elif defined(RT_OS_FREEBSD) || defined(RT_OS_NETBSD)
#  define EIDRM                 (82)
# elif defined(RT_OS_OPENBSD)
#  define EIDRM                 (89)
# elif defined(RT_OS_LINUX)
#  define EIDRM                 (43)
# elif defined(RT_OS_WINDOWS)
#  define EIDRM                 (111)
# else
#  define EIDRM                 (36)
# endif
#endif
#ifndef EINPROGRESS
# if defined(RT_ERRNO_OS_BSD)
#  define EINPROGRESS           (36)
# elif defined(RT_OS_LINUX)
#  define EINPROGRESS           (115)
# elif defined(RT_OS_WINDOWS)
#  define EINPROGRESS           (112)
# else
#  define EINPROGRESS           (150)   /* solaris */
# endif
#endif
#ifndef ENAMETOOLONG
# if defined(RT_ERRNO_OS_BSD)
#  define ENAMETOOLONG          (63)
# elif defined(RT_OS_LINUX)
#  define ENAMETOOLONG          (36)
# elif defined(RT_OS_WINDOWS)
#  define ENAMETOOLONG          (38)
# else
#  define ENAMETOOLONG          (78)    /* solaris */
# endif
#endif

/* 37 */
#ifndef ECHRNG
# if defined(RT_ERRNO_OS_SYSV_HARDCORE)
#  define ECHRNG                (37)
# else
#  define ECHRNG                (599)
# endif
#endif
#ifndef ENOLCK
# if defined(RT_ERRNO_OS_BSD)
#  define ENOLCK                (77)
# elif defined(RT_OS_LINUX)
#  define ENOLCK                (37)
# elif defined(RT_OS_WINDOWS)
#  define ENOLCK                (39)
# else
#  define ENOLCK                (46)
# endif
#endif
#ifndef EALREADY
# if defined(RT_ERRNO_OS_BSD)
#  define EALREADY              (37)
# elif defined(RT_OS_LINUX)
#  define EALREADY              (114)
# elif defined(RT_OS_WINDOWS)
#  define EALREADY              (103)
# else
#  define EALREADY              (149)
# endif
#endif

/* 38 - Also ENAMETOOLONG on Windows. */
#ifndef ENOSYS
# if defined(RT_ERRNO_OS_BSD)
#  define ENOSYS                (78)
# elif defined(RT_OS_LINUX)
#  define ENOSYS                (38)
# elif defined(RT_OS_WINDOWS)
#  define ENOSYS                (40)
# else
#  define ENOSYS                (89)    /* solaris */
# endif
#endif
#ifndef ENOTSOCK
# if defined(RT_ERRNO_OS_BSD)
#  define ENOTSOCK              (38)
# elif defined(RT_OS_LINUX)
#  define ENOTSOCK              (88)
# elif defined(RT_OS_WINDOWS)
#  define ENOTSOCK              (128)
# else
#  define ENOTSOCK              (95)    /* solaris */
# endif
#endif
#ifndef EL2NSYNC
# if defined(RT_OS_LINUX)
#  define EL2NSYNC              (45)
# elif defined(RT_ERRNO_OS_SYSV_HARDCORE)
#  define EL2NSYNC              (38)    /* solaris */
# endif
#endif

/* 39 - Also ENOLCK on Windows. */
#ifndef ENOTEMPTY
# if defined(RT_ERRNO_OS_BSD)
#  define ENOTEMPTY             (66)
# elif defined(RT_OS_LINUX)
#  define ENOTEMPTY             (39)
# elif defined(RT_OS_WINDOWS)
#  define ENOTEMPTY             (41)
# else
#  define ENOTEMPTY             (93)    /* solaris */
# endif
#endif
#ifndef EDESTADDRREQ
# if defined(RT_ERRNO_OS_BSD)
#  define EDESTADDRREQ          (39)
# elif defined(RT_OS_LINUX)
#  define EDESTADDRREQ          (89)
# elif defined(RT_OS_WINDOWS)
#  define EDESTADDRREQ          (109)
# else
#  define EDESTADDRREQ          (96)    /* solaris */
# endif
#endif
#ifndef EL3HLT
# if defined(RT_OS_LINUX)
#  define EL3HLT                (46)
# elif defined(RT_ERRNO_OS_SYSV_HARDCORE)
#  define EL3HLT                (39)    /* solaris */
# endif
#endif

/* 40 - Also ENOSYS on Windows. */
#ifndef ELOOP
# if defined(RT_ERRNO_OS_BSD)
#  define ELOOP                 (62)
# elif defined(RT_OS_LINUX)
#  define ELOOP                 (40)
# elif defined(RT_OS_WINDOWS)
#  define ELOOP                 (114)
# else
#  define ELOOP                 (90)    /* solaris */
# endif
#endif
#ifndef EMSGSIZE
# if defined(RT_ERRNO_OS_BSD)
#  define EMSGSIZE              (40)
# elif defined(RT_OS_LINUX)
#  define EMSGSIZE              (90)
# elif defined(RT_OS_WINDOWS)
#  define EMSGSIZE              (115)
# else
#  define EMSGSIZE              (97)    /* solaris */
# endif
#endif
#ifndef EL3RST
# if defined(RT_OS_LINUX)
#  define EL3RST                (47)
# elif defined(RT_ERRNO_OS_SYSV_HARDCORE)
#  define EL3RST                (40)    /* solaris */
# endif
#endif

/** @todo errno constants {41..44}. */

/* 45 - also EDEADLK on Solaris, EL2NSYNC on Linux. */
#ifndef ENOTSUP
# if defined(RT_ERRNO_OS_BSD)
#  define ENOTSUP               (45)
# elif defined(RT_OS_LINUX)
#  define ENOTSUP               (95)
# elif defined(RT_OS_WINDOWS)
#  define ENOTSUP               (129)
# else
#  define ENOTSUP               (48)
# endif
#endif
#ifndef EOPNOTSUPP
# if defined(RT_ERRNO_OS_BSD)
#  define EOPNOTSUPP            ENOTSUP
# elif defined(RT_OS_LINUX)
#  define EOPNOTSUPP            ENOTSUP
# elif defined(RT_OS_WINDOWS)
#  define EOPNOTSUPP            (130)
# else
#  define EOPNOTSUPP            (122)
# endif
#endif

/** @todo errno constants {46..74}. */

/* 75 - note that Solaris has constant with value 75. */
#ifndef EOVERFLOW
# if defined(RT_OS_OPENBSD)
#  define EOVERFLOW             (87)
# elif defined(RT_ERRNO_OS_BSD)
#  define EOVERFLOW             (84)
# elif defined(RT_OS_LINUX)
#  define EOVERFLOW             (75)
# elif defined(RT_OS_WINDOWS)
#  define EOVERFLOW             (132)
# else
#  define EOVERFLOW             (79)
# endif
#endif
#ifndef EPROGMISMATCH
# if defined(RT_ERRNO_OS_BSD)
#  define EPROGMISMATCH         (75)
# else
#  define EPROGMISMATCH         (598)
# endif
#endif

/** @todo errno constants {76..}. */


#endif /* !IPRT_INCLUDED_errno_h */
