errno.h

// Copyright (c) 2015 Nuxi, https://nuxi.nl/
//
// 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.
//
// THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.

// <errno.h> - system error numbers
//
// Extensions:
// - ENOTCAPABLE:
//   Used by file descriptor capabilities.
// - ELAST:
//   Present on most operating systems.

#ifndef _ERRNO_H_
#define _ERRNO_H_

#include <_/cdefs.h>

// POSIX standard error numbers.
#define E2BIG 1
#define EACCES 2
#define EADDRINUSE 3
#define EADDRNOTAVAIL 4
#define EAFNOSUPPORT 5
#define EAGAIN 6
#define EALREADY 7
#define EBADF 8
#define EBADMSG 9
#define EBUSY 10
#define ECANCELED 11
#define ECHILD 12
#define ECONNABORTED 13
#define ECONNREFUSED 14
#define ECONNRESET 15
#define EDEADLK 16
#define EDESTADDRREQ 17
#define EDOM 18
#define EDQUOT 19
#define EEXIST 20
#define EFAULT 21
#define EFBIG 22
#define EHOSTUNREACH 23
#define EIDRM 24
#define EILSEQ 25
#define EINPROGRESS 26
#define EINTR 27
#define EINVAL 28
#define EIO 29
#define EISCONN 30
#define EISDIR 31
#define ELOOP 32
#define EMFILE 33
#define EMLINK 34
#define EMSGSIZE 35
#define EMULTIHOP 36
#define ENAMETOOLONG 37
#define ENETDOWN 38
#define ENETRESET 39
#define ENETUNREACH 40
#define ENFILE 41
#define ENOBUFS 42
#define ENODEV 43
#define ENOENT 44
#define ENOEXEC 45
#define ENOLCK 46
#define ENOLINK 47
#define ENOMEM 48
#define ENOMSG 49
#define ENOPROTOOPT 50
#define ENOSPC 51
#define ENOSYS 52
#define ENOTCONN 53
#define ENOTDIR 54
#define ENOTEMPTY 55
#define ENOTRECOVERABLE 56
#define ENOTSOCK 57
#define ENOTSUP 58
#define ENOTTY 59
#define ENXIO 60
#define EOVERFLOW 61
#define EOWNERDEAD 62
#define EPERM 63
#define EPIPE 64
#define EPROTO 65
#define EPROTONOSUPPORT 66
#define EPROTOTYPE 67
#define ERANGE 68
#define EROFS 69
#define ESPIPE 70
#define ESRCH 71
#define ESTALE 72
#define ETIMEDOUT 73
#define ETXTBSY 74
#define EXDEV 75

// Not distinguished by this implementation.
#define EOPNOTSUPP ENOTSUP
#define EWOULDBLOCK EAGAIN

// Non-standard error numbers.
#define ENOTCAPABLE 76

#define ELAST 76

// Keep existing code happy that assumes that errno is a macro.
#define errno errno

__BEGIN_DECLS
extern _Thread_local int errno;
__END_DECLS

#endif