/uspace/lib/posix/include/posix/errno.h

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