1/*
2 * Copyright (C) 2011 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package libcore.io;
18
19public final class OsConstants {
20    private OsConstants() { }
21
22    public static boolean S_ISBLK(int mode) { return (mode & S_IFMT) == S_IFBLK; }
23    public static boolean S_ISCHR(int mode) { return (mode & S_IFMT) == S_IFCHR; }
24    public static boolean S_ISDIR(int mode) { return (mode & S_IFMT) == S_IFDIR; }
25    public static boolean S_ISFIFO(int mode) { return (mode & S_IFMT) == S_IFIFO; }
26    public static boolean S_ISREG(int mode) { return (mode & S_IFMT) == S_IFREG; }
27    public static boolean S_ISLNK(int mode) { return (mode & S_IFMT) == S_IFLNK; }
28    public static boolean S_ISSOCK(int mode) { return (mode & S_IFMT) == S_IFSOCK; }
29
30    public static int WEXITSTATUS(int status) { return (status & 0xff00) >> 8; }
31    public static boolean WCOREDUMP(int status) { return (status & 0x80) != 0; }
32    public static int WTERMSIG(int status) { return status & 0x7f; }
33    public static int WSTOPSIG(int status) { return WEXITSTATUS(status); }
34    public static boolean WIFEXITED(int status) { return (WTERMSIG(status) == 0); }
35    public static boolean WIFSTOPPED(int status) { return (WTERMSIG(status) == 0x7f); }
36    public static boolean WIFSIGNALED(int status) { return (WTERMSIG(status + 1) >= 2); }
37
38    public static final int AF_INET = placeholder();
39    public static final int AF_INET6 = placeholder();
40    public static final int AF_UNIX = placeholder();
41    public static final int AF_UNSPEC = placeholder();
42    public static final int AI_ADDRCONFIG = placeholder();
43    public static final int AI_ALL = placeholder();
44    public static final int AI_CANONNAME = placeholder();
45    public static final int AI_NUMERICHOST = placeholder();
46    public static final int AI_NUMERICSERV = placeholder();
47    public static final int AI_PASSIVE = placeholder();
48    public static final int AI_V4MAPPED = placeholder();
49    public static final int E2BIG = placeholder();
50    public static final int EACCES = placeholder();
51    public static final int EADDRINUSE = placeholder();
52    public static final int EADDRNOTAVAIL = placeholder();
53    public static final int EAFNOSUPPORT = placeholder();
54    public static final int EAGAIN = placeholder();
55    public static final int EAI_AGAIN = placeholder();
56    public static final int EAI_BADFLAGS = placeholder();
57    public static final int EAI_FAIL = placeholder();
58    public static final int EAI_FAMILY = placeholder();
59    public static final int EAI_MEMORY = placeholder();
60    public static final int EAI_NODATA = placeholder();
61    public static final int EAI_NONAME = placeholder();
62    public static final int EAI_OVERFLOW = placeholder();
63    public static final int EAI_SERVICE = placeholder();
64    public static final int EAI_SOCKTYPE = placeholder();
65    public static final int EAI_SYSTEM = placeholder();
66    public static final int EALREADY = placeholder();
67    public static final int EBADF = placeholder();
68    public static final int EBADMSG = placeholder();
69    public static final int EBUSY = placeholder();
70    public static final int ECANCELED = placeholder();
71    public static final int ECHILD = placeholder();
72    public static final int ECONNABORTED = placeholder();
73    public static final int ECONNREFUSED = placeholder();
74    public static final int ECONNRESET = placeholder();
75    public static final int EDEADLK = placeholder();
76    public static final int EDESTADDRREQ = placeholder();
77    public static final int EDOM = placeholder();
78    public static final int EDQUOT = placeholder();
79    public static final int EEXIST = placeholder();
80    public static final int EFAULT = placeholder();
81    public static final int EFBIG = placeholder();
82    public static final int EHOSTUNREACH = placeholder();
83    public static final int EIDRM = placeholder();
84    public static final int EILSEQ = placeholder();
85    public static final int EINPROGRESS = placeholder();
86    public static final int EINTR = placeholder();
87    public static final int EINVAL = placeholder();
88    public static final int EIO = placeholder();
89    public static final int EISCONN = placeholder();
90    public static final int EISDIR = placeholder();
91    public static final int ELOOP = placeholder();
92    public static final int EMFILE = placeholder();
93    public static final int EMLINK = placeholder();
94    public static final int EMSGSIZE = placeholder();
95    public static final int EMULTIHOP = placeholder();
96    public static final int ENAMETOOLONG = placeholder();
97    public static final int ENETDOWN = placeholder();
98    public static final int ENETRESET = placeholder();
99    public static final int ENETUNREACH = placeholder();
100    public static final int ENFILE = placeholder();
101    public static final int ENOBUFS = placeholder();
102    public static final int ENODATA = placeholder();
103    public static final int ENODEV = placeholder();
104    public static final int ENOENT = placeholder();
105    public static final int ENOEXEC = placeholder();
106    public static final int ENOLCK = placeholder();
107    public static final int ENOLINK = placeholder();
108    public static final int ENOMEM = placeholder();
109    public static final int ENOMSG = placeholder();
110    public static final int ENOPROTOOPT = placeholder();
111    public static final int ENOSPC = placeholder();
112    public static final int ENOSR = placeholder();
113    public static final int ENOSTR = placeholder();
114    public static final int ENOSYS = placeholder();
115    public static final int ENOTCONN = placeholder();
116    public static final int ENOTDIR = placeholder();
117    public static final int ENOTEMPTY = placeholder();
118    public static final int ENOTSOCK = placeholder();
119    public static final int ENOTSUP = placeholder();
120    public static final int ENOTTY = placeholder();
121    public static final int ENXIO = placeholder();
122    public static final int EOPNOTSUPP = placeholder();
123    public static final int EOVERFLOW = placeholder();
124    public static final int EPERM = placeholder();
125    public static final int EPIPE = placeholder();
126    public static final int EPROTO = placeholder();
127    public static final int EPROTONOSUPPORT = placeholder();
128    public static final int EPROTOTYPE = placeholder();
129    public static final int ERANGE = placeholder();
130    public static final int EROFS = placeholder();
131    public static final int ESPIPE = placeholder();
132    public static final int ESRCH = placeholder();
133    public static final int ESTALE = placeholder();
134    public static final int ETIME = placeholder();
135    public static final int ETIMEDOUT = placeholder();
136    public static final int ETXTBSY = placeholder();
137    public static final int EWOULDBLOCK = placeholder();
138    public static final int EXDEV = placeholder();
139    public static final int EXIT_FAILURE = placeholder();
140    public static final int EXIT_SUCCESS = placeholder();
141    public static final int FD_CLOEXEC = placeholder();
142    public static final int FIONREAD = placeholder();
143    public static final int F_DUPFD = placeholder();
144    public static final int F_GETFD = placeholder();
145    public static final int F_GETFL = placeholder();
146    public static final int F_GETLK = placeholder();
147    public static final int F_GETLK64 = placeholder();
148    public static final int F_GETOWN = placeholder();
149    public static final int F_OK = placeholder();
150    public static final int F_RDLCK = placeholder();
151    public static final int F_SETFD = placeholder();
152    public static final int F_SETFL = placeholder();
153    public static final int F_SETLK = placeholder();
154    public static final int F_SETLK64 = placeholder();
155    public static final int F_SETLKW = placeholder();
156    public static final int F_SETLKW64 = placeholder();
157    public static final int F_SETOWN = placeholder();
158    public static final int F_UNLCK = placeholder();
159    public static final int F_WRLCK = placeholder();
160    public static final int IFF_ALLMULTI = placeholder();
161    public static final int IFF_AUTOMEDIA = placeholder();
162    public static final int IFF_BROADCAST = placeholder();
163    public static final int IFF_DEBUG = placeholder();
164    public static final int IFF_DYNAMIC = placeholder();
165    public static final int IFF_LOOPBACK = placeholder();
166    public static final int IFF_MASTER = placeholder();
167    public static final int IFF_MULTICAST = placeholder();
168    public static final int IFF_NOARP = placeholder();
169    public static final int IFF_NOTRAILERS = placeholder();
170    public static final int IFF_POINTOPOINT = placeholder();
171    public static final int IFF_PORTSEL = placeholder();
172    public static final int IFF_PROMISC = placeholder();
173    public static final int IFF_RUNNING = placeholder();
174    public static final int IFF_SLAVE = placeholder();
175    public static final int IFF_UP = placeholder();
176    public static final int IPPROTO_ICMP = placeholder();
177    public static final int IPPROTO_IP = placeholder();
178    public static final int IPPROTO_IPV6 = placeholder();
179    public static final int IPPROTO_RAW = placeholder();
180    public static final int IPPROTO_TCP = placeholder();
181    public static final int IPPROTO_UDP = placeholder();
182    public static final int IPV6_CHECKSUM = placeholder();
183    public static final int IPV6_MULTICAST_HOPS = placeholder();
184    public static final int IPV6_MULTICAST_IF = placeholder();
185    public static final int IPV6_MULTICAST_LOOP = placeholder();
186    public static final int IPV6_RECVDSTOPTS = placeholder();
187    public static final int IPV6_RECVHOPLIMIT = placeholder();
188    public static final int IPV6_RECVHOPOPTS = placeholder();
189    public static final int IPV6_RECVPKTINFO = placeholder();
190    public static final int IPV6_RECVRTHDR = placeholder();
191    public static final int IPV6_RECVTCLASS = placeholder();
192    public static final int IPV6_TCLASS = placeholder();
193    public static final int IPV6_UNICAST_HOPS = placeholder();
194    public static final int IPV6_V6ONLY = placeholder();
195    public static final int IP_MULTICAST_IF = placeholder();
196    public static final int IP_MULTICAST_LOOP = placeholder();
197    public static final int IP_MULTICAST_TTL = placeholder();
198    public static final int IP_TOS = placeholder();
199    public static final int IP_TTL = placeholder();
200    public static final int MAP_FIXED = placeholder();
201    public static final int MAP_PRIVATE = placeholder();
202    public static final int MAP_SHARED = placeholder();
203    public static final int MCAST_JOIN_GROUP = placeholder();
204    public static final int MCAST_LEAVE_GROUP = placeholder();
205    public static final int MCL_CURRENT = placeholder();
206    public static final int MCL_FUTURE = placeholder();
207    public static final int MSG_CTRUNC = placeholder();
208    public static final int MSG_DONTROUTE = placeholder();
209    public static final int MSG_EOR = placeholder();
210    public static final int MSG_OOB = placeholder();
211    public static final int MSG_PEEK = placeholder();
212    public static final int MSG_TRUNC = placeholder();
213    public static final int MSG_WAITALL = placeholder();
214    public static final int MS_ASYNC = placeholder();
215    public static final int MS_INVALIDATE = placeholder();
216    public static final int MS_SYNC = placeholder();
217    public static final int NI_DGRAM = placeholder();
218    public static final int NI_NAMEREQD = placeholder();
219    public static final int NI_NOFQDN = placeholder();
220    public static final int NI_NUMERICHOST = placeholder();
221    public static final int NI_NUMERICSERV = placeholder();
222    public static final int O_ACCMODE = placeholder();
223    public static final int O_APPEND = placeholder();
224    public static final int O_CREAT = placeholder();
225    public static final int O_EXCL = placeholder();
226    public static final int O_NOCTTY = placeholder();
227    public static final int O_NONBLOCK = placeholder();
228    public static final int O_RDONLY = placeholder();
229    public static final int O_RDWR = placeholder();
230    public static final int O_SYNC = placeholder();
231    public static final int O_TRUNC = placeholder();
232    public static final int O_WRONLY = placeholder();
233    public static final int POLLERR = placeholder();
234    public static final int POLLHUP = placeholder();
235    public static final int POLLIN = placeholder();
236    public static final int POLLNVAL = placeholder();
237    public static final int POLLOUT = placeholder();
238    public static final int POLLPRI = placeholder();
239    public static final int POLLRDBAND = placeholder();
240    public static final int POLLRDNORM = placeholder();
241    public static final int POLLWRBAND = placeholder();
242    public static final int POLLWRNORM = placeholder();
243    public static final int PROT_EXEC = placeholder();
244    public static final int PROT_NONE = placeholder();
245    public static final int PROT_READ = placeholder();
246    public static final int PROT_WRITE = placeholder();
247    public static final int R_OK = placeholder();
248    public static final int SEEK_CUR = placeholder();
249    public static final int SEEK_END = placeholder();
250    public static final int SEEK_SET = placeholder();
251    public static final int SHUT_RD = placeholder();
252    public static final int SHUT_RDWR = placeholder();
253    public static final int SHUT_WR = placeholder();
254    public static final int SIGABRT = placeholder();
255    public static final int SIGALRM = placeholder();
256    public static final int SIGBUS = placeholder();
257    public static final int SIGCHLD = placeholder();
258    public static final int SIGCONT = placeholder();
259    public static final int SIGFPE = placeholder();
260    public static final int SIGHUP = placeholder();
261    public static final int SIGILL = placeholder();
262    public static final int SIGINT = placeholder();
263    public static final int SIGIO = placeholder();
264    public static final int SIGKILL = placeholder();
265    public static final int SIGPIPE = placeholder();
266    public static final int SIGPROF = placeholder();
267    public static final int SIGPWR = placeholder();
268    public static final int SIGQUIT = placeholder();
269    public static final int SIGRTMAX = placeholder();
270    public static final int SIGRTMIN = placeholder();
271    public static final int SIGSEGV = placeholder();
272    public static final int SIGSTKFLT = placeholder();
273    public static final int SIGSTOP = placeholder();
274    public static final int SIGSYS = placeholder();
275    public static final int SIGTERM = placeholder();
276    public static final int SIGTRAP = placeholder();
277    public static final int SIGTSTP = placeholder();
278    public static final int SIGTTIN = placeholder();
279    public static final int SIGTTOU = placeholder();
280    public static final int SIGURG = placeholder();
281    public static final int SIGUSR1 = placeholder();
282    public static final int SIGUSR2 = placeholder();
283    public static final int SIGVTALRM = placeholder();
284    public static final int SIGWINCH = placeholder();
285    public static final int SIGXCPU = placeholder();
286    public static final int SIGXFSZ = placeholder();
287    public static final int SIOCGIFADDR = placeholder();
288    public static final int SIOCGIFBRDADDR = placeholder();
289    public static final int SIOCGIFDSTADDR = placeholder();
290    public static final int SIOCGIFNETMASK = placeholder();
291    public static final int SOCK_DGRAM = placeholder();
292    public static final int SOCK_RAW = placeholder();
293    public static final int SOCK_SEQPACKET = placeholder();
294    public static final int SOCK_STREAM = placeholder();
295    public static final int SOL_SOCKET = placeholder();
296    public static final int SO_BINDTODEVICE = placeholder();
297    public static final int SO_BROADCAST = placeholder();
298    public static final int SO_DEBUG = placeholder();
299    public static final int SO_DONTROUTE = placeholder();
300    public static final int SO_ERROR = placeholder();
301    public static final int SO_KEEPALIVE = placeholder();
302    public static final int SO_LINGER = placeholder();
303    public static final int SO_OOBINLINE = placeholder();
304    public static final int SO_RCVBUF = placeholder();
305    public static final int SO_RCVLOWAT = placeholder();
306    public static final int SO_RCVTIMEO = placeholder();
307    public static final int SO_REUSEADDR = placeholder();
308    public static final int SO_SNDBUF = placeholder();
309    public static final int SO_SNDLOWAT = placeholder();
310    public static final int SO_SNDTIMEO = placeholder();
311    public static final int SO_TYPE = placeholder();
312    public static final int STDERR_FILENO = placeholder();
313    public static final int STDIN_FILENO = placeholder();
314    public static final int STDOUT_FILENO = placeholder();
315    public static final int S_IFBLK = placeholder();
316    public static final int S_IFCHR = placeholder();
317    public static final int S_IFDIR = placeholder();
318    public static final int S_IFIFO = placeholder();
319    public static final int S_IFLNK = placeholder();
320    public static final int S_IFMT = placeholder();
321    public static final int S_IFREG = placeholder();
322    public static final int S_IFSOCK = placeholder();
323    public static final int S_IRGRP = placeholder();
324    public static final int S_IROTH = placeholder();
325    public static final int S_IRUSR = placeholder();
326    public static final int S_IRWXG = placeholder();
327    public static final int S_IRWXO = placeholder();
328    public static final int S_IRWXU = placeholder();
329    public static final int S_ISGID = placeholder();
330    public static final int S_ISUID = placeholder();
331    public static final int S_ISVTX = placeholder();
332    public static final int S_IWGRP = placeholder();
333    public static final int S_IWOTH = placeholder();
334    public static final int S_IWUSR = placeholder();
335    public static final int S_IXGRP = placeholder();
336    public static final int S_IXOTH = placeholder();
337    public static final int S_IXUSR = placeholder();
338    public static final int TCP_NODELAY = placeholder();
339    public static final int WCONTINUED = placeholder();
340    public static final int WEXITED = placeholder();
341    public static final int WNOHANG = placeholder();
342    public static final int WNOWAIT = placeholder();
343    public static final int WSTOPPED = placeholder();
344    public static final int WUNTRACED = placeholder();
345    public static final int W_OK = placeholder();
346    public static final int X_OK = placeholder();
347    public static final int _SC_2_CHAR_TERM = placeholder();
348    public static final int _SC_2_C_BIND = placeholder();
349    public static final int _SC_2_C_DEV = placeholder();
350    public static final int _SC_2_C_VERSION = placeholder();
351    public static final int _SC_2_FORT_DEV = placeholder();
352    public static final int _SC_2_FORT_RUN = placeholder();
353    public static final int _SC_2_LOCALEDEF = placeholder();
354    public static final int _SC_2_SW_DEV = placeholder();
355    public static final int _SC_2_UPE = placeholder();
356    public static final int _SC_2_VERSION = placeholder();
357    public static final int _SC_AIO_LISTIO_MAX = placeholder();
358    public static final int _SC_AIO_MAX = placeholder();
359    public static final int _SC_AIO_PRIO_DELTA_MAX = placeholder();
360    public static final int _SC_ARG_MAX = placeholder();
361    public static final int _SC_ASYNCHRONOUS_IO = placeholder();
362    public static final int _SC_ATEXIT_MAX = placeholder();
363    public static final int _SC_AVPHYS_PAGES = placeholder();
364    public static final int _SC_BC_BASE_MAX = placeholder();
365    public static final int _SC_BC_DIM_MAX = placeholder();
366    public static final int _SC_BC_SCALE_MAX = placeholder();
367    public static final int _SC_BC_STRING_MAX = placeholder();
368    public static final int _SC_CHILD_MAX = placeholder();
369    public static final int _SC_CLK_TCK = placeholder();
370    public static final int _SC_COLL_WEIGHTS_MAX = placeholder();
371    public static final int _SC_DELAYTIMER_MAX = placeholder();
372    public static final int _SC_EXPR_NEST_MAX = placeholder();
373    public static final int _SC_FSYNC = placeholder();
374    public static final int _SC_GETGR_R_SIZE_MAX = placeholder();
375    public static final int _SC_GETPW_R_SIZE_MAX = placeholder();
376    public static final int _SC_IOV_MAX = placeholder();
377    public static final int _SC_JOB_CONTROL = placeholder();
378    public static final int _SC_LINE_MAX = placeholder();
379    public static final int _SC_LOGIN_NAME_MAX = placeholder();
380    public static final int _SC_MAPPED_FILES = placeholder();
381    public static final int _SC_MEMLOCK = placeholder();
382    public static final int _SC_MEMLOCK_RANGE = placeholder();
383    public static final int _SC_MEMORY_PROTECTION = placeholder();
384    public static final int _SC_MESSAGE_PASSING = placeholder();
385    public static final int _SC_MQ_OPEN_MAX = placeholder();
386    public static final int _SC_MQ_PRIO_MAX = placeholder();
387    public static final int _SC_NGROUPS_MAX = placeholder();
388    public static final int _SC_NPROCESSORS_CONF = placeholder();
389    public static final int _SC_NPROCESSORS_ONLN = placeholder();
390    public static final int _SC_OPEN_MAX = placeholder();
391    public static final int _SC_PAGESIZE = placeholder();
392    public static final int _SC_PAGE_SIZE = placeholder();
393    public static final int _SC_PASS_MAX = placeholder();
394    public static final int _SC_PHYS_PAGES = placeholder();
395    public static final int _SC_PRIORITIZED_IO = placeholder();
396    public static final int _SC_PRIORITY_SCHEDULING = placeholder();
397    public static final int _SC_REALTIME_SIGNALS = placeholder();
398    public static final int _SC_RE_DUP_MAX = placeholder();
399    public static final int _SC_RTSIG_MAX = placeholder();
400    public static final int _SC_SAVED_IDS = placeholder();
401    public static final int _SC_SEMAPHORES = placeholder();
402    public static final int _SC_SEM_NSEMS_MAX = placeholder();
403    public static final int _SC_SEM_VALUE_MAX = placeholder();
404    public static final int _SC_SHARED_MEMORY_OBJECTS = placeholder();
405    public static final int _SC_SIGQUEUE_MAX = placeholder();
406    public static final int _SC_STREAM_MAX = placeholder();
407    public static final int _SC_SYNCHRONIZED_IO = placeholder();
408    public static final int _SC_THREADS = placeholder();
409    public static final int _SC_THREAD_ATTR_STACKADDR = placeholder();
410    public static final int _SC_THREAD_ATTR_STACKSIZE = placeholder();
411    public static final int _SC_THREAD_DESTRUCTOR_ITERATIONS = placeholder();
412    public static final int _SC_THREAD_KEYS_MAX = placeholder();
413    public static final int _SC_THREAD_PRIORITY_SCHEDULING = placeholder();
414    public static final int _SC_THREAD_PRIO_INHERIT = placeholder();
415    public static final int _SC_THREAD_PRIO_PROTECT = placeholder();
416    public static final int _SC_THREAD_SAFE_FUNCTIONS = placeholder();
417    public static final int _SC_THREAD_STACK_MIN = placeholder();
418    public static final int _SC_THREAD_THREADS_MAX = placeholder();
419    public static final int _SC_TIMERS = placeholder();
420    public static final int _SC_TIMER_MAX = placeholder();
421    public static final int _SC_TTY_NAME_MAX = placeholder();
422    public static final int _SC_TZNAME_MAX = placeholder();
423    public static final int _SC_VERSION = placeholder();
424    public static final int _SC_XBS5_ILP32_OFF32 = placeholder();
425    public static final int _SC_XBS5_ILP32_OFFBIG = placeholder();
426    public static final int _SC_XBS5_LP64_OFF64 = placeholder();
427    public static final int _SC_XBS5_LPBIG_OFFBIG = placeholder();
428    public static final int _SC_XOPEN_CRYPT = placeholder();
429    public static final int _SC_XOPEN_ENH_I18N = placeholder();
430    public static final int _SC_XOPEN_LEGACY = placeholder();
431    public static final int _SC_XOPEN_REALTIME = placeholder();
432    public static final int _SC_XOPEN_REALTIME_THREADS = placeholder();
433    public static final int _SC_XOPEN_SHM = placeholder();
434    public static final int _SC_XOPEN_UNIX = placeholder();
435    public static final int _SC_XOPEN_VERSION = placeholder();
436    public static final int _SC_XOPEN_XCU_VERSION = placeholder();
437
438    public static String gaiName(int error) {
439        if (error == EAI_AGAIN) {
440            return "EAI_AGAIN";
441        }
442        if (error == EAI_BADFLAGS) {
443            return "EAI_BADFLAGS";
444        }
445        if (error == EAI_FAIL) {
446            return "EAI_FAIL";
447        }
448        if (error == EAI_FAMILY) {
449            return "EAI_FAMILY";
450        }
451        if (error == EAI_MEMORY) {
452            return "EAI_MEMORY";
453        }
454        if (error == EAI_NODATA) {
455            return "EAI_NODATA";
456        }
457        if (error == EAI_NONAME) {
458            return "EAI_NONAME";
459        }
460        if (error == EAI_OVERFLOW) {
461            return "EAI_OVERFLOW";
462        }
463        if (error == EAI_SERVICE) {
464            return "EAI_SERVICE";
465        }
466        if (error == EAI_SOCKTYPE) {
467            return "EAI_SOCKTYPE";
468        }
469        if (error == EAI_SYSTEM) {
470            return "EAI_SYSTEM";
471        }
472        return null;
473    }
474
475    public static String errnoName(int errno) {
476        if (errno == E2BIG) {
477            return "E2BIG";
478        }
479        if (errno == EACCES) {
480            return "EACCES";
481        }
482        if (errno == EADDRINUSE) {
483            return "EADDRINUSE";
484        }
485        if (errno == EADDRNOTAVAIL) {
486            return "EADDRNOTAVAIL";
487        }
488        if (errno == EAFNOSUPPORT) {
489            return "EAFNOSUPPORT";
490        }
491        if (errno == EAGAIN) {
492            return "EAGAIN";
493        }
494        if (errno == EALREADY) {
495            return "EALREADY";
496        }
497        if (errno == EBADF) {
498            return "EBADF";
499        }
500        if (errno == EBADMSG) {
501            return "EBADMSG";
502        }
503        if (errno == EBUSY) {
504            return "EBUSY";
505        }
506        if (errno == ECANCELED) {
507            return "ECANCELED";
508        }
509        if (errno == ECHILD) {
510            return "ECHILD";
511        }
512        if (errno == ECONNABORTED) {
513            return "ECONNABORTED";
514        }
515        if (errno == ECONNREFUSED) {
516            return "ECONNREFUSED";
517        }
518        if (errno == ECONNRESET) {
519            return "ECONNRESET";
520        }
521        if (errno == EDEADLK) {
522            return "EDEADLK";
523        }
524        if (errno == EDESTADDRREQ) {
525            return "EDESTADDRREQ";
526        }
527        if (errno == EDOM) {
528            return "EDOM";
529        }
530        if (errno == EDQUOT) {
531            return "EDQUOT";
532        }
533        if (errno == EEXIST) {
534            return "EEXIST";
535        }
536        if (errno == EFAULT) {
537            return "EFAULT";
538        }
539        if (errno == EFBIG) {
540            return "EFBIG";
541        }
542        if (errno == EHOSTUNREACH) {
543            return "EHOSTUNREACH";
544        }
545        if (errno == EIDRM) {
546            return "EIDRM";
547        }
548        if (errno == EILSEQ) {
549            return "EILSEQ";
550        }
551        if (errno == EINPROGRESS) {
552            return "EINPROGRESS";
553        }
554        if (errno == EINTR) {
555            return "EINTR";
556        }
557        if (errno == EINVAL) {
558            return "EINVAL";
559        }
560        if (errno == EIO) {
561            return "EIO";
562        }
563        if (errno == EISCONN) {
564            return "EISCONN";
565        }
566        if (errno == EISDIR) {
567            return "EISDIR";
568        }
569        if (errno == ELOOP) {
570            return "ELOOP";
571        }
572        if (errno == EMFILE) {
573            return "EMFILE";
574        }
575        if (errno == EMLINK) {
576            return "EMLINK";
577        }
578        if (errno == EMSGSIZE) {
579            return "EMSGSIZE";
580        }
581        if (errno == EMULTIHOP) {
582            return "EMULTIHOP";
583        }
584        if (errno == ENAMETOOLONG) {
585            return "ENAMETOOLONG";
586        }
587        if (errno == ENETDOWN) {
588            return "ENETDOWN";
589        }
590        if (errno == ENETRESET) {
591            return "ENETRESET";
592        }
593        if (errno == ENETUNREACH) {
594            return "ENETUNREACH";
595        }
596        if (errno == ENFILE) {
597            return "ENFILE";
598        }
599        if (errno == ENOBUFS) {
600            return "ENOBUFS";
601        }
602        if (errno == ENODATA) {
603            return "ENODATA";
604        }
605        if (errno == ENODEV) {
606            return "ENODEV";
607        }
608        if (errno == ENOENT) {
609            return "ENOENT";
610        }
611        if (errno == ENOEXEC) {
612            return "ENOEXEC";
613        }
614        if (errno == ENOLCK) {
615            return "ENOLCK";
616        }
617        if (errno == ENOLINK) {
618            return "ENOLINK";
619        }
620        if (errno == ENOMEM) {
621            return "ENOMEM";
622        }
623        if (errno == ENOMSG) {
624            return "ENOMSG";
625        }
626        if (errno == ENOPROTOOPT) {
627            return "ENOPROTOOPT";
628        }
629        if (errno == ENOSPC) {
630            return "ENOSPC";
631        }
632        if (errno == ENOSR) {
633            return "ENOSR";
634        }
635        if (errno == ENOSTR) {
636            return "ENOSTR";
637        }
638        if (errno == ENOSYS) {
639            return "ENOSYS";
640        }
641        if (errno == ENOTCONN) {
642            return "ENOTCONN";
643        }
644        if (errno == ENOTDIR) {
645            return "ENOTDIR";
646        }
647        if (errno == ENOTEMPTY) {
648            return "ENOTEMPTY";
649        }
650        if (errno == ENOTSOCK) {
651            return "ENOTSOCK";
652        }
653        if (errno == ENOTSUP) {
654            return "ENOTSUP";
655        }
656        if (errno == ENOTTY) {
657            return "ENOTTY";
658        }
659        if (errno == ENXIO) {
660            return "ENXIO";
661        }
662        if (errno == EOPNOTSUPP) {
663            return "EOPNOTSUPP";
664        }
665        if (errno == EOVERFLOW) {
666            return "EOVERFLOW";
667        }
668        if (errno == EPERM) {
669            return "EPERM";
670        }
671        if (errno == EPIPE) {
672            return "EPIPE";
673        }
674        if (errno == EPROTO) {
675            return "EPROTO";
676        }
677        if (errno == EPROTONOSUPPORT) {
678            return "EPROTONOSUPPORT";
679        }
680        if (errno == EPROTOTYPE) {
681            return "EPROTOTYPE";
682        }
683        if (errno == ERANGE) {
684            return "ERANGE";
685        }
686        if (errno == EROFS) {
687            return "EROFS";
688        }
689        if (errno == ESPIPE) {
690            return "ESPIPE";
691        }
692        if (errno == ESRCH) {
693            return "ESRCH";
694        }
695        if (errno == ESTALE) {
696            return "ESTALE";
697        }
698        if (errno == ETIME) {
699            return "ETIME";
700        }
701        if (errno == ETIMEDOUT) {
702            return "ETIMEDOUT";
703        }
704        if (errno == ETXTBSY) {
705            return "ETXTBSY";
706        }
707        if (errno == EWOULDBLOCK) {
708            return "EWOULDBLOCK";
709        }
710        if (errno == EXDEV) {
711            return "EXDEV";
712        }
713        return null;
714    }
715
716    private static native void initConstants();
717
718    // A hack to avoid these constants being inlined by javac...
719    private static int placeholder() { return 0; }
720    // ...because we want to initialize them at runtime.
721    static {
722        initConstants();
723    }
724}
725