| 1 | /*
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| 2 | * Copyright (c) 2011 Jiri Zarevucky
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| 3 | * All rights reserved.
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without
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| 6 | * modification, are permitted provided that the following conditions
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| 7 | * are met:
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| 8 | *
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| 9 | * - Redistributions of source code must retain the above copyright
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| 10 | * notice, this list of conditions and the following disclaimer.
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| 11 | * - Redistributions in binary form must reproduce the above copyright
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| 12 | * notice, this list of conditions and the following disclaimer in the
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| 13 | * documentation and/or other materials provided with the distribution.
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| 14 | * - The name of the author may not be used to endorse or promote products
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| 15 | * derived from this software without specific prior written permission.
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| 16 | *
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 27 | */
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| 28 |
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| 29 | /** @addtogroup libposix
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| 30 | * @{
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| 31 | */
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| 32 | /** @file System error numbers.
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| 33 | */
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| 34 |
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| 35 | #ifndef POSIX_ERRNO_H_
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| 36 | #define POSIX_ERRNO_H_
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| 37 |
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| 38 | #include "libc/errno.h"
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| 39 |
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| 40 | /* IMPORTANT:
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| 41 | * Since libc uses negative errorcodes, some sort of conversion is necessary to
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| 42 | * keep POSIX programs and libraries from breaking. This file maps POSIX error
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| 43 | * codes to absolute values of corresponding libc codes where available, and
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| 44 | * assigns new code where there is no prior definition in libc.
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| 45 | *
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| 46 | * A new errno variable is defined. When accessed, the function first looks at
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| 47 | * libc errno and iff it is != 0, sets the POSIX errno to absolute value of
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| 48 | * libc errno. Given that no library function sets errno to 0 and that all
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| 49 | * POSIX libraries will be used solely by POSIX programs (thus, there only needs
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| 50 | * to be one way correspondence between errno and posix_errno), this approach
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| 51 | * should work as expected in most cases and does not require any wrappers for
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| 52 | * libc routines that would just change errno values.
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| 53 | *
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| 54 | * There is no conditioning by LIBPOSIX_INTERNAL for redefinitions of macros.
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| 55 | * If there is a need to check errno for a value not defined by POSIX, it's
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| 56 | * necessary to compare errno against abs(ECODE), because there is no
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| 57 | * redefinition for such error codes.
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| 58 | *
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| 59 | * XXX: maybe all HOS error codes should be redefined
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| 60 | *
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| 61 | * NOTE: This redefinition is slightly POSIX incompatible, since the
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| 62 | * specification requires the macro values to be usable in preprocessing
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| 63 | * directives. I don't think that's very important, though.
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| 64 | */
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| 65 |
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| 66 | #undef errno
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| 67 | #define errno (*__posix_errno())
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| 68 |
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| 69 | #include "unistd.h"
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| 70 |
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| 71 | extern int *__posix_errno(void);
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| 72 |
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| 73 | #define __TOP_ERRNO (-NO_DATA)
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| 74 |
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| 75 | enum {
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| 76 | POSIX_E2BIG = __TOP_ERRNO + 1,
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| 77 | POSIX_EACCES = __TOP_ERRNO + 2,
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| 78 | POSIX_EADDRINUSE = -EADDRINUSE,
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| 79 | POSIX_EADDRNOTAVAIL = -EADDRNOTAVAIL,
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| 80 | POSIX_EAFNOSUPPORT = -EAFNOSUPPORT,
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| 81 | POSIX_EAGAIN = -EAGAIN,
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| 82 | POSIX_EALREADY = __TOP_ERRNO + 3,
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| 83 | POSIX_EBADF = -EBADF,
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| 84 | POSIX_EBADMSG = __TOP_ERRNO + 4,
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| 85 | POSIX_EBUSY = -EBUSY,
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| 86 | POSIX_ECANCELED = __TOP_ERRNO + 5,
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| 87 | POSIX_ECHILD = __TOP_ERRNO + 6,
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| 88 | POSIX_ECONNABORTED = __TOP_ERRNO + 7,
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| 89 | POSIX_ECONNREFUSED = __TOP_ERRNO + 8,
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| 90 | POSIX_ECONNRESET = __TOP_ERRNO + 9,
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| 91 | POSIX_EDEADLK = __TOP_ERRNO + 10,
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| 92 | POSIX_EDESTADDRREQ = -EDESTADDRREQ,
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| 93 | POSIX_EDOM = __TOP_ERRNO + 11,
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| 94 | POSIX_EDQUOT = __TOP_ERRNO + 12,
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| 95 | POSIX_EEXIST = -EEXIST,
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| 96 | POSIX_EFAULT = __TOP_ERRNO + 13,
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| 97 | POSIX_EFBIG = __TOP_ERRNO + 14,
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| 98 | POSIX_EHOSTUNREACH = __TOP_ERRNO + 15,
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| 99 | POSIX_EIDRM = __TOP_ERRNO + 16,
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| 100 | POSIX_EILSEQ = __TOP_ERRNO + 17,
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| 101 | POSIX_EINPROGRESS = -EINPROGRESS,
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| 102 | POSIX_EINTR = -EINTR,
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| 103 | POSIX_EINVAL = -EINVAL,
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| 104 | POSIX_EIO = -EIO,
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| 105 | POSIX_EISCONN = __TOP_ERRNO + 18,
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| 106 | POSIX_EISDIR = -EISDIR,
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| 107 | POSIX_ELOOP = __TOP_ERRNO + 19,
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| 108 | POSIX_EMFILE = -EMFILE,
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| 109 | POSIX_EMLINK = -EMLINK,
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| 110 | POSIX_EMSGSIZE = __TOP_ERRNO + 20,
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| 111 | POSIX_EMULTIHOP = __TOP_ERRNO + 21,
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| 112 | POSIX_ENAMETOOLONG = -ENAMETOOLONG,
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| 113 | POSIX_ENETDOWN = __TOP_ERRNO + 22,
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| 114 | POSIX_ENETRESET = __TOP_ERRNO + 23,
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| 115 | POSIX_ENETUNREACH = __TOP_ERRNO + 24,
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| 116 | POSIX_ENFILE = __TOP_ERRNO + 25,
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| 117 | POSIX_ENOBUFS = __TOP_ERRNO + 26,
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| 118 | POSIX_ENODATA = -NO_DATA,
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| 119 | POSIX_ENODEV = __TOP_ERRNO + 27,
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| 120 | POSIX_ENOENT = -ENOENT,
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| 121 | POSIX_ENOEXEC = __TOP_ERRNO + 28,
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| 122 | POSIX_ENOLCK = __TOP_ERRNO + 29,
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| 123 | POSIX_ENOLINK = __TOP_ERRNO + 30,
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| 124 | POSIX_ENOMEM = -ENOMEM,
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| 125 | POSIX_ENOMSG = __TOP_ERRNO + 31,
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| 126 | POSIX_ENOPROTOOPT = __TOP_ERRNO + 32,
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| 127 | POSIX_ENOSPC = -ENOSPC,
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| 128 | POSIX_ENOSR = __TOP_ERRNO + 33,
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| 129 | POSIX_ENOSTR = __TOP_ERRNO + 34,
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| 130 | POSIX_ENOSYS = __TOP_ERRNO + 35,
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| 131 | POSIX_ENOTCONN = -ENOTCONN,
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| 132 | POSIX_ENOTDIR = -ENOTDIR,
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| 133 | POSIX_ENOTEMPTY = -ENOTEMPTY,
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| 134 | POSIX_ENOTRECOVERABLE = __TOP_ERRNO + 36,
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| 135 | POSIX_ENOTSOCK = -ENOTSOCK,
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| 136 | POSIX_ENOTSUP = -ENOTSUP,
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| 137 | POSIX_ENOTTY = __TOP_ERRNO + 37,
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| 138 | POSIX_ENXIO = __TOP_ERRNO + 38,
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| 139 | POSIX_EOPNOTSUPP = __TOP_ERRNO + 39,
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| 140 | POSIX_EOVERFLOW = -EOVERFLOW,
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| 141 | POSIX_EOWNERDEAD = __TOP_ERRNO + 40,
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| 142 | POSIX_EPERM = -EPERM,
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| 143 | POSIX_EPIPE = __TOP_ERRNO + 41,
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| 144 | POSIX_EPROTO = __TOP_ERRNO + 42,
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| 145 | POSIX_EPROTONOSUPPORT = -EPROTONOSUPPORT,
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| 146 | POSIX_EPROTOTYPE = __TOP_ERRNO + 43,
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| 147 | POSIX_ERANGE = -ERANGE,
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| 148 | POSIX_EROFS = __TOP_ERRNO + 44,
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| 149 | POSIX_ESPIPE = __TOP_ERRNO + 45,
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| 150 | POSIX_ESRCH = __TOP_ERRNO + 46,
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| 151 | POSIX_ESTALE = __TOP_ERRNO + 47,
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| 152 | POSIX_ETIME = __TOP_ERRNO + 48,
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| 153 | POSIX_ETIMEDOUT = __TOP_ERRNO + 49,
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| 154 | POSIX_ETXTBSY = __TOP_ERRNO + 50,
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| 155 | POSIX_EWOULDBLOCK = __TOP_ERRNO + 51,
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| 156 | POSIX_EXDEV = -EXDEV,
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| 157 | };
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| 158 |
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| 159 | #undef __TOP_ERRNO
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| 160 |
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| 161 | #undef E2BIG
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| 162 | #undef EACCES
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| 163 | #undef EADDRINUSE
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| 164 | #undef EADDRNOTAVAIL
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| 165 | #undef EAFNOSUPPORT
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| 166 | #undef EAGAIN
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| 167 | #undef EALREADY
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| 168 | #undef EBADF
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| 169 | #undef EBADMSG
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| 170 | #undef EBUSY
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| 171 | #undef ECANCELED
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| 172 | #undef ECHILD
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| 173 | #undef ECONNABORTED
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| 174 | #undef ECONNREFUSED
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| 175 | #undef ECONNRESET
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| 176 | #undef EDEADLK
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| 177 | #undef EDESTADDRREQ
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| 178 | #undef EDOM
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| 179 | #undef EDQUOT
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| 180 | #undef EEXIST
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| 181 | #undef EFAULT
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| 182 | #undef EFBIG
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| 183 | #undef EHOSTUNREACH
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| 184 | #undef EIDRM
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| 185 | #undef EILSEQ
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| 186 | #undef EINPROGRESS
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| 187 | #undef EINTR
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| 188 | #undef EINVAL
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| 189 | #undef EIO
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| 190 | #undef EISCONN
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| 191 | #undef EISDIR
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| 192 | #undef ELOOP
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| 193 | #undef EMFILE
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| 194 | #undef EMLINK
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| 195 | #undef EMSGSIZE
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| 196 | #undef EMULTIHOP
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| 197 | #undef ENAMETOOLONG
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| 198 | #undef ENETDOWN
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| 199 | #undef ENETRESET
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| 200 | #undef ENETUNREACH
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| 201 | #undef ENFILE
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| 202 | #undef ENOBUFS
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| 203 | #undef ENODATA
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| 204 | #undef ENODEV
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| 205 | #undef ENOENT
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| 206 | #undef ENOEXEC
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| 207 | #undef ENOLCK
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| 208 | #undef ENOLINK
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| 209 | #undef ENOMEM
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| 210 | #undef ENOMSG
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| 211 | #undef ENOPROTOOPT
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| 212 | #undef ENOSPC
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| 213 | #undef ENOSR
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| 214 | #undef ENOSTR
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| 215 | #undef ENOSYS
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| 216 | #undef ENOTCONN
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| 217 | #undef ENOTDIR
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| 218 | #undef ENOTEMPTY
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| 219 | #undef ENOTRECOVERABLE
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| 220 | #undef ENOTSOCK
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| 221 | #undef ENOTSUP
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| 222 | #undef ENOTTY
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| 223 | #undef ENXIO
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| 224 | #undef EOPNOTSUPP
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| 225 | #undef EOVERFLOW
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| 226 | #undef EOWNERDEAD
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| 227 | #undef EPERM
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| 228 | #undef EPIPE
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| 229 | #undef EPROTO
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| 230 | #undef EPROTONOSUPPORT
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| 231 | #undef EPROTOTYPE
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| 232 | #undef ERANGE
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| 233 | #undef EROFS
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| 234 | #undef ESPIPE
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| 235 | #undef ESRCH
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| 236 | #undef ESTALE
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| 237 | #undef ETIME
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| 238 | #undef ETIMEDOUT
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| 239 | #undef ETXTBSY
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| 240 | #undef EWOULDBLOCK
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| 241 | #undef EXDEV
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| 242 |
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| 243 | #define E2BIG POSIX_E2BIG
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| 244 | #define EACCES POSIX_EACCES
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| 245 | #define EADDRINUSE POSIX_EADDRINUSE
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| 246 | #define EADDRNOTAVAIL POSIX_EADDRNOTAVAIL
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| 247 | #define EAFNOSUPPORT POSIX_EAFNOSUPPORT
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| 248 | #define EAGAIN POSIX_EAGAIN
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| 249 | #define EALREADY POSIX_EALREADY
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| 250 | #define EBADF POSIX_EBADF
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| 251 | #define EBADMSG POSIX_EBADMSG
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| 252 | #define EBUSY POSIX_EBUSY
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| 253 | #define ECANCELED POSIX_ECANCELED
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| 254 | #define ECHILD POSIX_ECHILD
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| 255 | #define ECONNABORTED POSIX_ECONNABORTED
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| 256 | #define ECONNREFUSED POSIX_ECONNREFUSED
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| 257 | #define ECONNRESET POSIX_ECONNRESET
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| 258 | #define EDEADLK POSIX_EDEADLK
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| 259 | #define EDESTADDRREQ POSIX_EDESTADDRREQ
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| 260 | #define EDOM POSIX_EDOM
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| 261 | #define EDQUOT POSIX_EDQUOT
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| 262 | #define EEXIST POSIX_EEXIST
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| 263 | #define EFAULT POSIX_EFAULT
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| 264 | #define EFBIG POSIX_EFBIG
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| 265 | #define EHOSTUNREACH POSIX_EHOSTUNREACH
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| 266 | #define EIDRM POSIX_EIDRM
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| 267 | #define EILSEQ POSIX_EILSEQ
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| 268 | #define EINPROGRESS POSIX_EINPROGRESS
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| 269 | #define EINTR POSIX_EINTR
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| 270 | #define EINVAL POSIX_EINVAL
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| 271 | #define EIO POSIX_EIO
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| 272 | #define EISCONN POSIX_EISCONN
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| 273 | #define EISDIR POSIX_EISDIR
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| 274 | #define ELOOP POSIX_ELOOP
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| 275 | #define EMFILE POSIX_EMFILE
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| 276 | #define EMLINK POSIX_EMLINK
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| 277 | #define EMSGSIZE POSIX_EMSGSIZE
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| 278 | #define EMULTIHOP POSIX_EMULTIHOP
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| 279 | #define ENAMETOOLONG POSIX_ENAMETOOLONG
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| 280 | #define ENETDOWN POSIX_ENETDOWN
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| 281 | #define ENETRESET POSIX_ENETRESET
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| 282 | #define ENETUNREACH POSIX_ENETUNREACH
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| 283 | #define ENFILE POSIX_ENFILE
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| 284 | #define ENOBUFS POSIX_ENOBUFS
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| 285 | #define ENODATA POSIX_ENODATA
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| 286 | #define ENODEV POSIX_ENODEV
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| 287 | #define ENOENT POSIX_ENOENT
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| 288 | #define ENOEXEC POSIX_ENOEXEC
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| 289 | #define ENOLCK POSIX_ENOLCK
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| 290 | #define ENOLINK POSIX_ENOLINK
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| 291 | #define ENOMEM POSIX_ENOMEM
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| 292 | #define ENOMSG POSIX_ENOMSG
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| 293 | #define ENOPROTOOPT POSIX_ENOPROTOOPT
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| 294 | #define ENOSPC POSIX_ENOSPC
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| 295 | #define ENOSR POSIX_ENOSR
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| 296 | #define ENOSTR POSIX_ENOSTR
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| 297 | #define ENOSYS POSIX_ENOSYS
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| 298 | #define ENOTCONN POSIX_ENOTCONN
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| 299 | #define ENOTDIR POSIX_ENOTDIR
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| 300 | #define ENOTEMPTY POSIX_ENOTEMPTY
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| 301 | #define ENOTRECOVERABLE POSIX_ENOTRECOVERABLE
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| 302 | #define ENOTSOCK POSIX_ENOTSOCK
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| 303 | #define ENOTSUP POSIX_ENOTSUP
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| 304 | #define ENOTTY POSIX_ENOTTY
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| 305 | #define ENXIO POSIX_ENXIO
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| 306 | #define EOPNOTSUPP POSIX_EOPNOTSUPP
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| 307 | #define EOVERFLOW POSIX_EOVERFLOW
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| 308 | #define EOWNERDEAD POSIX_EOWNERDEAD
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| 309 | #define EPERM POSIX_EPERM
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| 310 | #define EPIPE POSIX_EPIPE
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| 311 | #define EPROTO POSIX_EPROTO
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| 312 | #define EPROTONOSUPPORT POSIX_EPROTONOSUPPORT
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| 313 | #define EPROTOTYPE POSIX_EPROTOTYPE
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| 314 | #define ERANGE POSIX_ERANGE
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| 315 | #define EROFS POSIX_EROFS
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| 316 | #define ESPIPE POSIX_ESPIPE
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| 317 | #define ESRCH POSIX_ESRCH
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| 318 | #define ESTALE POSIX_ESTALE
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| 319 | #define ETIME POSIX_ETIME
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| 320 | #define ETIMEDOUT POSIX_ETIMEDOUT
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| 321 | #define ETXTBSY POSIX_ETXTBSY
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| 322 | #define EWOULDBLOCK POSIX_EWOULDBLOCK
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| 323 | #define EXDEV POSIX_EXDEV
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| 324 |
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| 325 | #endif /* POSIX_ERRNO_H_ */
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| 326 |
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| 327 | /** @}
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| 328 | */
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