VirtualBox

source: kBuild/trunk/src/lib/nt/nthlpcore.c@ 2989

Last change on this file since 2989 was 2985, checked in by bird, 8 years ago

lib/nt: Got fts-nt halfways working, quite a few NT interface changes.
  • Property svn:eol-style set to native
  • Property svn:keywords set to Id
File size: 18.6 KB
Line 
1/* $Id: nthlpcore.c 2985 2016-11-01 18:26:35Z bird $ */
2/** @file
3 * MSC + NT core helpers functions and globals.
4 */
5
6/*
7 * Copyright (c) 2005-2013 knut st. osmundsen <[email protected]>
8 *
9 * Permission is hereby granted, free of charge, to any person obtaining a
10 * copy of this software and associated documentation files (the "Software"),
11 * to deal in the Software without restriction, including without limitation
12 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
13 * and/or sell copies of the Software, and to permit persons to whom the
14 * Software is furnished to do so, subject to the following conditions:
15 *
16 * The above copyright notice and this permission notice shall be included
17 * in all copies or substantial portions of the Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
22 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
23 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
24 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
25 * IN THE SOFTWARE.
26 *
27 * Alternatively, the content of this file may be used under the terms of the
28 * GPL version 2 or later, or LGPL version 2.1 or later.
29 */
30
31/*******************************************************************************
32* Header Files *
33*******************************************************************************/
34#include <errno.h>
35#include "nthlp.h"
36#ifndef NDEBUG
37# include <stdio.h>
38#endif
39
40
41/*******************************************************************************
42* Global Variables *
43*******************************************************************************/
44MY_NTSTATUS (WINAPI *g_pfnNtClose)(HANDLE);
45MY_NTSTATUS (WINAPI *g_pfnNtCreateFile)(PHANDLE, MY_ACCESS_MASK, MY_OBJECT_ATTRIBUTES *, MY_IO_STATUS_BLOCK *,
46 PLARGE_INTEGER, ULONG, ULONG, ULONG, ULONG, PVOID, ULONG);
47MY_NTSTATUS (WINAPI *g_pfnNtDeleteFile)(MY_OBJECT_ATTRIBUTES *);
48MY_NTSTATUS (WINAPI *g_pfnNtDuplicateObject)(HANDLE hSrcProc, HANDLE hSrc, HANDLE hDstProc, HANDLE *phRet,
49 MY_ACCESS_MASK fDesiredAccess, ULONG fAttribs, ULONG fOptions);
50MY_NTSTATUS (WINAPI *g_pfnNtReadFile)(HANDLE hFile, HANDLE hEvent, MY_IO_APC_ROUTINE *pfnApc, PVOID pvApcCtx,
51 MY_IO_STATUS_BLOCK *, PVOID pvBuf, ULONG cbToRead, PLARGE_INTEGER poffFile,
52 PULONG puKey);
53MY_NTSTATUS (WINAPI *g_pfnNtQueryInformationFile)(HANDLE, MY_IO_STATUS_BLOCK *, PVOID, LONG, MY_FILE_INFORMATION_CLASS);
54MY_NTSTATUS (WINAPI *g_pfnNtQueryVolumeInformationFile)(HANDLE, MY_IO_STATUS_BLOCK *, PVOID, LONG, MY_FS_INFORMATION_CLASS);
55MY_NTSTATUS (WINAPI *g_pfnNtQueryDirectoryFile)(HANDLE, HANDLE, MY_IO_APC_ROUTINE *, PVOID, MY_IO_STATUS_BLOCK *,
56 PVOID, ULONG, MY_FILE_INFORMATION_CLASS, BOOLEAN,
57 MY_UNICODE_STRING *, BOOLEAN);
58MY_NTSTATUS (WINAPI *g_pfnNtQueryAttributesFile)(MY_OBJECT_ATTRIBUTES *, MY_FILE_BASIC_INFORMATION *);
59MY_NTSTATUS (WINAPI *g_pfnNtQueryFullAttributesFile)(MY_OBJECT_ATTRIBUTES *, MY_FILE_NETWORK_OPEN_INFORMATION *);
60MY_NTSTATUS (WINAPI *g_pfnNtSetInformationFile)(HANDLE, MY_IO_STATUS_BLOCK *, PVOID, LONG, MY_FILE_INFORMATION_CLASS);
61BOOLEAN (WINAPI *g_pfnRtlDosPathNameToNtPathName_U)(PCWSTR, MY_UNICODE_STRING *, PCWSTR *, MY_RTL_RELATIVE_NAME_U *);
62MY_NTSTATUS (WINAPI *g_pfnRtlAnsiStringToUnicodeString)(MY_UNICODE_STRING *, MY_ANSI_STRING const *, BOOLEAN);
63BOOLEAN (WINAPI *g_pfnRtlEqualUnicodeString)(MY_UNICODE_STRING const *, MY_UNICODE_STRING const *, BOOLEAN);
64BOOLEAN (WINAPI *g_pfnRtlEqualString)(MY_ANSI_STRING const *, MY_ANSI_STRING const *, BOOLEAN);
65UCHAR (WINAPI *g_pfnRtlUpperChar)(UCHAR uch);
66ULONG (WINAPI *g_pfnRtlNtStatusToDosError)(MY_NTSTATUS rcNt);
67VOID (WINAPI *g_pfnRtlAcquirePebLock)(VOID);
68VOID (WINAPI *g_pfnRtlReleasePebLock)(VOID);
69
70
71static struct
72{
73 FARPROC *ppfn;
74 const char *pszName;
75} const g_apfnDynamicNtdll[] =
76{
77 { (FARPROC *)&g_pfnNtClose, "NtClose" },
78 { (FARPROC *)&g_pfnNtCreateFile, "NtCreateFile" },
79 { (FARPROC *)&g_pfnNtDeleteFile, "NtDeleteFile" },
80 { (FARPROC *)&g_pfnNtDuplicateObject, "NtDuplicateObject" },
81 { (FARPROC *)&g_pfnNtReadFile, "NtReadFile" },
82 { (FARPROC *)&g_pfnNtQueryInformationFile, "NtQueryInformationFile" },
83 { (FARPROC *)&g_pfnNtQueryVolumeInformationFile, "NtQueryVolumeInformationFile" },
84 { (FARPROC *)&g_pfnNtQueryDirectoryFile, "NtQueryDirectoryFile" },
85 { (FARPROC *)&g_pfnNtQueryAttributesFile, "NtQueryAttributesFile" },
86 { (FARPROC *)&g_pfnNtQueryFullAttributesFile, "NtQueryFullAttributesFile" },
87 { (FARPROC *)&g_pfnNtSetInformationFile, "NtSetInformationFile" },
88 { (FARPROC *)&g_pfnRtlDosPathNameToNtPathName_U, "RtlDosPathNameToNtPathName_U" },
89 { (FARPROC *)&g_pfnRtlAnsiStringToUnicodeString, "RtlAnsiStringToUnicodeString" },
90 { (FARPROC *)&g_pfnRtlEqualUnicodeString, "RtlEqualUnicodeString" },
91 { (FARPROC *)&g_pfnRtlEqualString, "RtlEqualString" },
92 { (FARPROC *)&g_pfnRtlUpperChar, "RtlUpperChar" },
93 { (FARPROC *)&g_pfnRtlNtStatusToDosError, "RtlNtStatusToDosError" },
94 { (FARPROC *)&g_pfnRtlAcquirePebLock, "RtlAcquirePebLock" },
95 { (FARPROC *)&g_pfnRtlReleasePebLock, "RtlReleasePebLock" },
96};
97/** Set to 1 if we've successfully resolved the imports, otherwise 0. */
98int g_fResolvedNtImports = 0;
99
100
101
102void birdResolveImportsWorker(void)
103{
104 HMODULE hMod = LoadLibraryW(L"ntdll.dll");
105 int i = sizeof(g_apfnDynamicNtdll) / sizeof(g_apfnDynamicNtdll[0]);
106 while (i-- > 0)
107 {
108 const char *pszSym = g_apfnDynamicNtdll[i].pszName;
109 FARPROC pfn;
110 *g_apfnDynamicNtdll[i].ppfn = pfn = GetProcAddress(hMod, pszSym);
111 if (!pfn)
112 {
113 /* Write short message and die. */
114 static const char s_szMsg[] = "\r\nFatal error resolving NTDLL.DLL symbols!\r\nSymbol: ";
115 DWORD cbWritten;
116 if ( !WriteFile(GetStdHandle(STD_ERROR_HANDLE), s_szMsg, sizeof(s_szMsg) - 1, &cbWritten, NULL)
117 || !WriteFile(GetStdHandle(STD_ERROR_HANDLE), pszSym, (DWORD)strlen(pszSym), &cbWritten, NULL)
118 || !WriteFile(GetStdHandle(STD_ERROR_HANDLE), "\r\n", sizeof("\r\n") - 1, &cbWritten, NULL)
119 )
120 *(void **)i = NULL;
121 ExitProcess(127);
122 }
123 }
124
125 g_fResolvedNtImports = 1;
126}
127
128
129void *birdTmpAlloc(size_t cb)
130{
131 return malloc(cb);
132}
133
134
135void birdTmpFree(void *pv)
136{
137 if (pv)
138 free(pv);
139}
140
141
142void *birdMemAlloc(size_t cb)
143{
144 return malloc(cb);
145}
146
147
148void *birdMemAllocZ(size_t cb)
149{
150 return calloc(cb, 1);
151}
152
153
154void birdMemFree(void *pv)
155{
156 if (pv)
157 free(pv);
158}
159
160
161int birdErrnoFromNtStatus(MY_NTSTATUS rcNt)
162{
163 switch (rcNt)
164 {
165 /* EPERM = 1 */
166 case STATUS_CANNOT_DELETE:
167 return EPERM;
168 /* ENOENT = 2 */
169 case STATUS_NOT_FOUND:
170 case STATUS_OBJECT_NAME_NOT_FOUND:
171 case STATUS_OBJECT_PATH_NOT_FOUND:
172 case STATUS_OBJECT_NAME_INVALID:
173 case STATUS_INVALID_COMPUTER_NAME:
174 case STATUS_VARIABLE_NOT_FOUND:
175 case STATUS_MESSAGE_NOT_FOUND:
176 case STATUS_DLL_NOT_FOUND:
177 case STATUS_ORDINAL_NOT_FOUND:
178 case STATUS_ENTRYPOINT_NOT_FOUND:
179 case STATUS_PATH_NOT_COVERED:
180 case STATUS_BAD_NETWORK_PATH:
181 case STATUS_DFS_EXIT_PATH_FOUND:
182 case RPC_NT_OBJECT_NOT_FOUND:
183 case STATUS_DELETE_PENDING:
184 return ENOENT;
185 /* ESRCH = 3 */
186 case STATUS_PROCESS_NOT_IN_JOB:
187 return ESRCH;
188 /* EINTR = 4 */
189 case STATUS_ALERTED:
190 case STATUS_USER_APC:
191 return EINTR;
192 /* EIO = 5 */
193 /* ENXIO = 6 */
194 /* E2BIG = 7 */
195 /* ENOEXEC = 8 */
196 case STATUS_INVALID_IMAGE_FORMAT:
197 case STATUS_INVALID_IMAGE_NE_FORMAT:
198 case STATUS_INVALID_IMAGE_LE_FORMAT:
199 case STATUS_INVALID_IMAGE_NOT_MZ:
200 case STATUS_INVALID_IMAGE_PROTECT:
201 case STATUS_INVALID_IMAGE_WIN_16:
202 case STATUS_IMAGE_SUBSYSTEM_NOT_PRESENT:
203 case STATUS_IMAGE_CHECKSUM_MISMATCH:
204 case STATUS_IMAGE_MP_UP_MISMATCH:
205 case STATUS_IMAGE_MACHINE_TYPE_MISMATCH:
206 case STATUS_IMAGE_MACHINE_TYPE_MISMATCH_EXE:
207 case STATUS_SYSTEM_IMAGE_BAD_SIGNATURE:
208 case STATUS_SECTION_NOT_IMAGE:
209 case STATUS_INVALID_IMAGE_WIN_32:
210 case STATUS_INVALID_IMAGE_WIN_64:
211 case STATUS_INVALID_IMAGE_HASH:
212 case STATUS_IMAGE_CERT_REVOKED:
213 return ENOEXEC;
214 /* EBADF = 9 */
215 case STATUS_INVALID_HANDLE:
216 case STATUS_PORT_CLOSED:
217 case STATUS_OPLOCK_HANDLE_CLOSED:
218 case STATUS_HANDLES_CLOSED:
219 case STATUS_FILE_FORCED_CLOSED:
220 return EBADF;
221 /* ECHILD = 10 */
222 /* EAGAIN = 11 */
223 case STATUS_WMI_TRY_AGAIN:
224 case STATUS_GRAPHICS_TRY_AGAIN_LATER:
225 case STATUS_GRAPHICS_TRY_AGAIN_NOW:
226 return EAGAIN;
227 /* ENOMEM = 12 */
228 case STATUS_NO_MEMORY:
229 case STATUS_HV_INSUFFICIENT_MEMORY:
230 case STATUS_INSUFFICIENT_RESOURCES:
231 case STATUS_REMOTE_RESOURCES:
232 case STATUS_INSUFF_SERVER_RESOURCES:
233 return ENOMEM;
234 /* EACCES = 13 */
235 case STATUS_ACCESS_DENIED:
236 case STATUS_NETWORK_ACCESS_DENIED:
237 case RPC_NT_PROXY_ACCESS_DENIED:
238 case STATUS_CTX_SHADOW_DENIED:
239 case STATUS_CTX_WINSTATION_ACCESS_DENIED:
240 return EACCES;
241 /* EFAULT = 14 */
242 case STATUS_ACCESS_VIOLATION:
243 case STATUS_HARDWARE_MEMORY_ERROR:
244 return EFAULT;
245 /* EBUSY = 16 */
246 case STATUS_PIPE_BUSY:
247 case STATUS_RESOURCE_IN_USE:
248 return EBUSY;
249 /* EEXIST = 17 */
250 case STATUS_OBJECT_NAME_EXISTS:
251 case STATUS_OBJECT_NAME_COLLISION:
252 case STATUS_DUPLICATE_NAME:
253 return EEXIST;
254 /* EXDEV = 18 */
255 case STATUS_NOT_SAME_DEVICE:
256 return EXDEV;
257 /* ENODEV = 19 */
258 /* ENOTDIR = 20 */
259 case STATUS_NOT_A_DIRECTORY:
260 case STATUS_DIRECTORY_IS_A_REPARSE_POINT:
261 case STATUS_OBJECT_PATH_SYNTAX_BAD:
262 case STATUS_OBJECT_PATH_INVALID:
263 case STATUS_OBJECT_TYPE_MISMATCH:
264 return ENOTDIR;
265 /* EISDIR = 21 */
266 case STATUS_FILE_IS_A_DIRECTORY:
267 return EISDIR;
268 /* EINVAL = 22 */
269 case STATUS_INVALID_PARAMETER:
270 case STATUS_INVALID_PARAMETER_1:
271 case STATUS_INVALID_PARAMETER_2:
272 case STATUS_INVALID_PARAMETER_3:
273 case STATUS_INVALID_PARAMETER_4:
274 case STATUS_INVALID_PARAMETER_5:
275 case STATUS_INVALID_PARAMETER_6:
276 case STATUS_INVALID_PARAMETER_7:
277 case STATUS_INVALID_PARAMETER_8:
278 case STATUS_INVALID_PARAMETER_9:
279 case STATUS_INVALID_PARAMETER_10:
280 case STATUS_INVALID_PARAMETER_11:
281 case STATUS_INVALID_PARAMETER_12:
282 case STATUS_INVALID_PARAMETER_MIX:
283 return EINVAL;
284 /* ENFILE = 23 */
285 /* EMFILE = 24 */
286 case STATUS_TOO_MANY_OPENED_FILES:
287 return EMFILE;
288 /* ENOTTY = 25 */
289 /* EFBIG = 27 */
290 /* ENOSPC = 28 */
291 case STATUS_DISK_FULL:
292 return ENOSPC;
293 /* ESPIPE = 29 */
294 /* EROFS = 30 */
295 /* EMLINK = 31 */
296 /* EPIPE = 32 */
297 case STATUS_PIPE_BROKEN:
298 case RPC_NT_PIPE_CLOSED:
299 return EPIPE;
300 /* EDOM = 33 */
301 /* ERANGE = 34 */
302 /* EDEADLK = 36 */
303 case STATUS_POSSIBLE_DEADLOCK:
304 return EDEADLK;
305 /* ENAMETOOLONG = 38 */
306 case STATUS_NAME_TOO_LONG:
307 return ENAMETOOLONG;
308 /* ENOLCK = 39 */
309 /* ENOSYS = 40 */
310 case STATUS_NOT_SUPPORTED:
311 return ENOSYS;
312 /* ENOTEMPTY = 41 */
313 case STATUS_DIRECTORY_NOT_EMPTY:
314 return ENOTEMPTY;
315 /* EILSEQ = 42 */
316 /* EADDRINUSE = 100 */
317 /* EADDRNOTAVAIL = 101 */
318 /* EAFNOSUPPORT = 102 */
319 /* EALREADY = 103 */
320 case STATUS_INTERRUPT_VECTOR_ALREADY_CONNECTED:
321 case STATUS_DEVICE_ALREADY_ATTACHED:
322 case STATUS_PORT_ALREADY_SET:
323 case STATUS_IMAGE_ALREADY_LOADED:
324 case STATUS_TOKEN_ALREADY_IN_USE:
325 case STATUS_IMAGE_ALREADY_LOADED_AS_DLL:
326 case STATUS_ADDRESS_ALREADY_EXISTS:
327 case STATUS_ADDRESS_ALREADY_ASSOCIATED:
328 return EALREADY;
329 /* EBADMSG = 104 */
330 /* ECANCELED = 105 */
331 /* ECONNABORTED = 106 */
332 /* ECONNREFUSED = 107 */
333 /* ECONNRESET = 108 */
334 /* EDESTADDRREQ = 109 */
335 /* EHOSTUNREACH = 110 */
336 case STATUS_HOST_UNREACHABLE:
337 return EHOSTUNREACH;
338 /* EIDRM = 111 */
339 /* EINPROGRESS = 112 */
340 /* EISCONN = 113 */
341 /* ELOOP = 114 */
342 /* EMSGSIZE = 115 */
343 /* ENETDOWN = 116 */
344 /* ENETRESET = 117 */
345 /* ENETUNREACH = 118 */
346 case STATUS_NETWORK_UNREACHABLE:
347 return ENETUNREACH;
348 /* ENOBUFS = 119 */
349 /* ENODATA = 120 */
350 /* ENOLINK = 121 */
351 /* ENOMSG = 122 */
352 /* ENOPROTOOPT = 123 */
353 /* ENOSR = 124 */
354 /* ENOSTR = 125 */
355 /* ENOTCONN = 126 */
356 /* ENOTRECOVERABLE = 127 */
357 /* ENOTSOCK = 128 */
358 /* ENOTSUP = 129 */
359 /* EOPNOTSUPP = 130 */
360 /* EOTHER = 131 */
361 /* EOVERFLOW = 132 */
362 /* EOWNERDEAD = 133 */
363 /* EPROTO = 134 */
364 /* EPROTONOSUPPORT = 135 */
365 /* EPROTOTYPE = 136 */
366 /* ETIME = 137 */
367 /* ETIMEDOUT = 138 */
368 case STATUS_VIRTUAL_CIRCUIT_CLOSED:
369 case STATUS_TIMEOUT:
370 return ETIMEDOUT;
371
372 /* ETXTBSY = 139 */
373 case STATUS_SHARING_VIOLATION:
374 return ETXTBSY;
375 /* EWOULDBLOCK = 140 */
376 }
377
378#ifndef NDEBUG
379 __debugbreak();
380 fprintf(stderr, "rcNt=%#x (%d)\n", rcNt, rcNt);
381#endif
382 return EINVAL;
383}
384
385
386int birdSetErrnoFromNt(MY_NTSTATUS rcNt)
387{
388 errno = birdErrnoFromNtStatus(rcNt);
389#if 0
390 {
391 ULONG rcWin32;
392 _doserrno = rcWin32 = g_pfnRtlNtStatusToDosError(rcNt);
393 SetLastError(rcWin32);
394 }
395#endif
396 return -1;
397}
398
399
400int birdSetErrnoFromWin32(DWORD dwErr)
401{
402 switch (dwErr)
403 {
404 default:
405 case ERROR_INVALID_FUNCTION: errno = EINVAL; break;
406 case ERROR_FILE_NOT_FOUND: errno = ENOENT; break;
407 case ERROR_PATH_NOT_FOUND: errno = ENOENT; break;
408 case ERROR_TOO_MANY_OPEN_FILES: errno = EMFILE; break;
409 case ERROR_ACCESS_DENIED: errno = EACCES; break;
410 case ERROR_INVALID_HANDLE: errno = EBADF; break;
411 case ERROR_ARENA_TRASHED: errno = ENOMEM; break;
412 case ERROR_NOT_ENOUGH_MEMORY: errno = ENOMEM; break;
413 case ERROR_INVALID_BLOCK: errno = ENOMEM; break;
414 case ERROR_BAD_ENVIRONMENT: errno = E2BIG; break;
415 case ERROR_BAD_FORMAT: errno = ENOEXEC; break;
416 case ERROR_INVALID_ACCESS: errno = EINVAL; break;
417 case ERROR_INVALID_DATA: errno = EINVAL; break;
418 case ERROR_INVALID_DRIVE: errno = ENOENT; break;
419 case ERROR_CURRENT_DIRECTORY: errno = EACCES; break;
420 case ERROR_NOT_SAME_DEVICE: errno = EXDEV; break;
421 case ERROR_NO_MORE_FILES: errno = ENOENT; break;
422 case ERROR_LOCK_VIOLATION: errno = EACCES; break;
423 case ERROR_BAD_NETPATH: errno = ENOENT; break;
424 case ERROR_NETWORK_ACCESS_DENIED: errno = EACCES; break;
425 case ERROR_BAD_NET_NAME: errno = ENOENT; break;
426 case ERROR_FILE_EXISTS: errno = EEXIST; break;
427 case ERROR_CANNOT_MAKE: errno = EACCES; break;
428 case ERROR_FAIL_I24: errno = EACCES; break;
429 case ERROR_INVALID_PARAMETER: errno = EINVAL; break;
430 case ERROR_NO_PROC_SLOTS: errno = EAGAIN; break;
431 case ERROR_DRIVE_LOCKED: errno = EACCES; break;
432 case ERROR_BROKEN_PIPE: errno = EPIPE; break;
433 case ERROR_DISK_FULL: errno = ENOSPC; break;
434 case ERROR_INVALID_TARGET_HANDLE: errno = EBADF; break;
435 case ERROR_WAIT_NO_CHILDREN: errno = ECHILD; break;
436 case ERROR_CHILD_NOT_COMPLETE: errno = ECHILD; break;
437 case ERROR_DIRECT_ACCESS_HANDLE: errno = EBADF; break;
438 case ERROR_NEGATIVE_SEEK: errno = EINVAL; break;
439 case ERROR_SEEK_ON_DEVICE: errno = EACCES; break;
440 case ERROR_DIR_NOT_EMPTY: errno = ENOTEMPTY; break;
441 case ERROR_NOT_LOCKED: errno = EACCES; break;
442 case ERROR_BAD_PATHNAME: errno = ENOENT; break;
443 case ERROR_MAX_THRDS_REACHED: errno = EAGAIN; break;
444 case ERROR_LOCK_FAILED: errno = EACCES; break;
445 case ERROR_ALREADY_EXISTS: errno = EEXIST; break;
446 case ERROR_FILENAME_EXCED_RANGE: errno = ENOENT; break;
447 case ERROR_NESTING_NOT_ALLOWED: errno = EAGAIN; break;
448#ifdef EMLINK
449 case ERROR_TOO_MANY_LINKS: errno = EMLINK; break;
450#endif
451
452 case ERROR_SHARING_VIOLATION:
453 errno = ETXTBSY;
454 break;
455 }
456
457 return -1;
458}
459
460
461int birdSetErrnoToNoMem(void)
462{
463 errno = ENOMEM;
464 return -1;
465}
466
467
468int birdSetErrnoToInvalidArg(void)
469{
470 errno = EINVAL;
471 return -1;
472}
473
474
475int birdSetErrnoToBadFileNo(void)
476{
477 errno = EBADF;
478 return -1;
479}
480
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