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(DISTFILES): Comment out a few missing files.
[mono-project.git] / mcs / class / Mono.Posix / Mono.Posix / Syscall.cs
blobb5f8a0c760f77417efca350e35779405c7a596ba
1 //
2 // Mono.Posix/Syscall.cs
3 //
4 // Authors:
5 // Miguel de Icaza (miguel@novell.com)
6 // Jonathan Pryor (jonpryor@vt.edu)
7 //
8 // (C) 2003 Novell, Inc.
9 // (C) 2004 Jonathan Pryor
10 //
11 // This file implements the low-level syscall interface to the POSIX
12 // subsystem.
13 //
14 // This file tries to stay close to the low-level API as much as possible
15 // using enumerations, structures and in a few cases, using existing .NET
16 // data types.
17 //
18 // Implementation notes:
19 //
20 // Since the values for the various constants on the API changes
21 // from system to system (even Linux on different architectures will
22 // have different values), we define our own set of values, and we
23 // use a set of C helper routines to map from the constants we define
24 // to the values of the native OS.
25 //
26 // Bitfields are flagged with the [Map] attribute, and a helper program
27 // generates a set of routines that we can call to convert from our value
28 // definitions to the value definitions expected by the OS; see
29 // PosixConvert for the conversion routines.
30 //
31 // Methods that require tuning are bound as `private sys_NAME' methods
32 // and then a `NAME' method is exposed.
33 //
34
35 //
36 // Permission is hereby granted, free of charge, to any person obtaining
37 // a copy of this software and associated documentation files (the
38 // "Software"), to deal in the Software without restriction, including
39 // without limitation the rights to use, copy, modify, merge, publish,
40 // distribute, sublicense, and/or sell copies of the Software, and to
41 // permit persons to whom the Software is furnished to do so, subject to
42 // the following conditions:
43 //
44 // The above copyright notice and this permission notice shall be
45 // included in all copies or substantial portions of the Software.
46 //
47 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
48 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
49 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
50 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
51 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
52 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
53 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
54 //
55
56 using System;
57 using System.Collections;
58 using System.Runtime.InteropServices;
59 using System.Text;
60 using Mono.Posix;
61
62 [assembly:Mono.Posix.IncludeAttribute (
63 new string [] {"sys/types.h", "sys/stat.h", "sys/poll.h", "sys/wait.h", "sys/mount.h",
64 "unistd.h", "fcntl.h", "signal.h", "poll.h", "grp.h", "errno.h"},
65 new string [] {"_GNU_SOURCE", "_XOPEN_SOURCE"})]
66
67 namespace Mono.Posix {
68
69 [Map]
70 public enum Error : int {
71 // errors & their values liberally copied from
72 // FC2 /usr/include/asm/errno.h
73
74 EPERM = 1, // Operation not permitted
75 ENOENT = 2, // No such file or directory
76 ESRCH = 3, // No such process
77 EINTR = 4, // Interrupted system call
78 EIO = 5, // I/O error
79 ENXIO = 6, // No such device or address
80 E2BIG = 7, // Arg list too long
81 ENOEXEC = 8, // Exec format error
82 EBADF = 9, // Bad file number
83 ECHILD = 10, // No child processes
84 EAGAIN = 11, // Try again
85 ENOMEM = 12, // Out of memory
86 EACCES = 13, // Permission denied
87 EFAULT = 14, // Bad address
88 ENOTBLK = 15, // Block device required
89 EBUSY = 16, // Device or resource busy
90 EEXIST = 17, // File exists
91 EXDEV = 18, // Cross-device link
92 ENODEV = 19, // No such device
93 ENOTDIR = 20, // Not a directory
94 EISDIR = 21, // Is a directory
95 EINVAL = 22, // Invalid argument
96 ENFILE = 23, // File table overflow
97 EMFILE = 24, // Too many open files
98 ENOTTY = 25, // Not a typewriter
99 ETXTBSY = 26, // Text file busy
100 EFBIG = 27, // File too large
101 ENOSPC = 28, // No space left on device
102 ESPIPE = 29, // Illegal seek
103 EROFS = 30, // Read-only file system
104 EMLINK = 31, // Too many links
105 EPIPE = 32, // Broken pipe
106 EDOM = 33, // Math argument out of domain of func
107 ERANGE = 34, // Math result not representable
108 EDEADLK = 35, // Resource deadlock would occur
109 ENAMETOOLONG = 36, // File name too long
110 ENOLCK = 37, // No record locks available
111 ENOSYS = 38, // Function not implemented
112 ENOTEMPTY = 39, // Directory not empty
113 ELOOP = 40, // Too many symbolic links encountered
114 EWOULDBLOCK = EAGAIN, // Operation would block
115 ENOMSG = 42, // No message of desired type
116 EIDRM = 43, // Identifier removed
117 ECHRNG = 44, // Channel number out of range
118 EL2NSYNC = 45, // Level 2 not synchronized
119 EL3HLT = 46, // Level 3 halted
120 EL3RST = 47, // Level 3 reset
121 ELNRNG = 48, // Link number out of range
122 EUNATCH = 49, // Protocol driver not attached
123 ENOCSI = 50, // No CSI structure available
124 EL2HLT = 51, // Level 2 halted
125 EBADE = 52, // Invalid exchange
126 EBADR = 53, // Invalid request descriptor
127 EXFULL = 54, // Exchange full
128 ENOANO = 55, // No anode
129 EBADRQC = 56, // Invalid request code
130 EBADSLT = 57, // Invalid slot
131
132 EDEADLOCK = EDEADLK,
133
134 EBFONT = 59, // Bad font file format
135 ENOSTR = 60, // Device not a stream
136 ENODATA = 61, // No data available
137 ETIME = 62, // Timer expired
138 ENOSR = 63, // Out of streams resources
139 ENONET = 64, // Machine is not on the network
140 ENOPKG = 65, // Package not installed
141 EREMOTE = 66, // Object is remote
142 ENOLINK = 67, // Link has been severed
143 EADV = 68, // Advertise error
144 ESRMNT = 69, // Srmount error
145 ECOMM = 70, // Communication error on send
146 EPROTO = 71, // Protocol error
147 EMULTIHOP = 72, // Multihop attempted
148 EDOTDOT = 73, // RFS specific error
149 EBADMSG = 74, // Not a data message
150 EOVERFLOW = 75, // Value too large for defined data type
151 ENOTUNIQ = 76, // Name not unique on network
152 EBADFD = 77, // File descriptor in bad state
153 EREMCHG = 78, // Remote address changed
154 ELIBACC = 79, // Can not access a needed shared library
155 ELIBBAD = 80, // Accessing a corrupted shared library
156 ELIBSCN = 81, // .lib section in a.out corrupted
157 ELIBMAX = 82, // Attempting to link in too many shared libraries
158 ELIBEXEC = 83, // Cannot exec a shared library directly
159 EILSEQ = 84, // Illegal byte sequence
160 ERESTART = 85, // Interrupted system call should be restarted
161 ESTRPIPE = 86, // Streams pipe error
162 EUSERS = 87, // Too many users
163 ENOTSOCK = 88, // Socket operation on non-socket
164 EDESTADDRREQ = 89, // Destination address required
165 EMSGSIZE = 90, // Message too long
166 EPROTOTYPE = 91, // Protocol wrong type for socket
167 ENOPROTOOPT = 92, // Protocol not available
168 EPROTONOSUPPORT = 93, // Protocol not supported
169 ESOCKTNOSUPPORT = 94, // Socket type not supported
170 EOPNOTSUPP = 95, // Operation not supported on transport endpoint
171 EPFNOSUPPORT = 96, // Protocol family not supported
172 EAFNOSUPPORT = 97, // Address family not supported by protocol
173 EADDRINUSE = 98, // Address already in use
174 EADDRNOTAVAIL = 99, // Cannot assign requested address
175 ENETDOWN = 100, // Network is down
176 ENETUNREACH = 101, // Network is unreachable
177 ENETRESET = 102, // Network dropped connection because of reset
178 ECONNABORTED = 103, // Software caused connection abort
179 ECONNRESET = 104, // Connection reset by peer
180 ENOBUFS = 105, // No buffer space available
181 EISCONN = 106, // Transport endpoint is already connected
182 ENOTCONN = 107, // Transport endpoint is not connected
183 ESHUTDOWN = 108, // Cannot send after transport endpoint shutdown
184 ETOOMANYREFS = 109, // Too many references: cannot splice
185 ETIMEDOUT = 110, // Connection timed out
186 ECONNREFUSED = 111, // Connection refused
187 EHOSTDOWN = 112, // Host is down
188 EHOSTUNREACH = 113, // No route to host
189 EALREADY = 114, // Operation already in progress
190 EINPROGRESS = 115, // Operation now in progress
191 ESTALE = 116, // Stale NFS file handle
192 EUCLEAN = 117, // Structure needs cleaning
193 ENOTNAM = 118, // Not a XENIX named type file
194 ENAVAIL = 119, // No XENIX semaphores available
195 EISNAM = 120, // Is a named type file
196 EREMOTEIO = 121, // Remote I/O error
197 EDQUOT = 122, // Quota exceeded
198
199 ENOMEDIUM = 123, // No medium found
200 EMEDIUMTYPE = 124, // Wrong medium type
201 }
202
203 [Map][Flags]
204 public enum OpenFlags : int {
205 //
206 // One of these
207 //
208 O_RDONLY = 0,
209 O_WRONLY = 1,
210 O_RDWR = 2,
211
212 //
213 // Or-ed with zero or more of these
214 //
215 O_CREAT = 4,
216 O_EXCL = 8,
217 O_NOCTTY = 16,
218 O_TRUNC = 32,
219 O_APPEND = 64,
220 O_NONBLOCK = 128,
221 O_SYNC = 256,
222
223 //
224 // These are non-Posix. Using them will result in errors/exceptions on
225 // non-supported platforms.
226 //
227 // (For example, "C-wrapped" system calls -- calls with implementation in
228 // MonoPosixHelper -- will return -1 with errno=EINVAL. C#-wrapped system
229 // calls will generate an exception in PosixConvert, as the value can't be
230 // converted on the target platform.)
231 //
232
233 O_NOFOLLOW = 512,
234 O_DIRECTORY = 1024,
235 O_DIRECT = 2048,
236 O_ASYNC = 4096,
237 O_LARGEFILE = 8192
238 }
239
240 // mode_t
241 [Flags][Map]
242 public enum FilePermissions : uint {
243 S_ISUID = 0x0800, // Set user ID on execution
244 S_ISGID = 0x0400, // Set gorup ID on execution
245 S_ISVTX = 0x0200, // Save swapped text after use (sticky).
246 S_IRUSR = 0x0100, // Read by owner
247 S_IWUSR = 0x0080, // Write by owner
248 S_IXUSR = 0x0040, // Execute by owner
249 S_IRGRP = 0x0020, // Read by group
250 S_IWGRP = 0x0010, // Write by group
251 S_IXGRP = 0x0008, // Execute by group
252 S_IROTH = 0x0004, // Read by other
253 S_IWOTH = 0x0002, // Write by other
254 S_IXOTH = 0x0001, // Execute by other
255
256 S_IRWXG = (S_IRGRP | S_IWGRP | S_IXGRP),
257 S_IRWXU = (S_IRUSR | S_IWUSR | S_IXUSR),
258 S_IRWXO = (S_IROTH | S_IWOTH | S_IXOTH),
259 ACCESSPERMS = (S_IRWXU | S_IRWXG | S_IRWXO), // 0777
260 ALLPERMS = (S_ISUID | S_ISGID | S_ISVTX | S_IRWXU | S_IRWXG | S_IRWXO), // 07777
261 DEFFILEMODE = (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH), // 0666
262
263 // Device types
264 // Why these are held in "mode_t" is beyond me...
265 S_IFMT = 0xF000, // Bits which determine file type
266 S_IFDIR = 0x4000, // Directory
267 S_IFCHR = 0x2000, // Character device
268 S_IFBLK = 0x6000, // Block device
269 S_IFREG = 0x8000, // Regular file
270 S_IFIFO = 0x1000, // FIFO
271 S_IFLNK = 0xA000, // Symbolic link
272 S_IFSOCK = 0xC000, // Socket
273 }
274
275 public struct Flock {
276 public LockType l_type; // Type of lock: F_RDLCK, F_WRLCK, F_UNLCK
277 public SeekFlags l_whence; // How to interpret l_start
278 public /* off_t */ long l_start; // Starting offset for lock
279 public /* off_t */ long l_len; // Number of bytes to lock
280 public /* pid_t */ int l_pid; // PID of process blocking our lock (F_GETLK only)
281 }
282
283 [Map]
284 public enum FcntlCommand : int {
285 // Form /usr/include/bits/fcntl.h
286 F_DUPFD = 0, // Duplicate file descriptor.
287 F_GETFD = 1, // Get file descriptor flags.
288 F_SETFD = 2, // Set file descriptor flags.
289 F_GETFL = 3, // Get file status flags.
290 F_SETFL = 4, // Set file status flags.
291 F_GETLK = 12, // Get record locking info. [64]
292 F_SETLK = 13, // Set record locking info (non-blocking). [64]
293 F_SETLKW = 14, // Set record locking info (blocking). [64]
294 F_SETOWN = 8, // Set owner of socket (receiver of SIGIO).
295 F_GETOWN = 9, // Get owner of socket (receiver of SIGIO).
296 F_SETSIG = 10, // Set number of signal to be sent.
297 F_GETSIG = 11, // Get number of signal to be sent.
298 F_SETLEASE = 1024, // Set a lease.
299 F_GETLEASE = 1025, // Enquire what lease is active.
300 F_NOTIFY = 1026, // Required notifications on a directory
301 }
302
303 [Map]
304 public enum LockType : short {
305 F_RDLCK = 0, // Read lock.
306 F_WRLCK = 1, // Write lock.
307 F_UNLCK = 2, // Remove lock.
308 }
309
310 [Map]
311 public enum SeekFlags : short {
312 // values liberally copied from /usr/include/unistd.h
313 SEEK_SET = 0, // Seek from beginning of file.
314 SEEK_CUR = 1, // Seek from current position.
315 SEEK_END = 2, // Seek from end of file.
316
317 L_SET = SEEK_SET, // BSD alias for SEEK_SET
318 L_INCR = SEEK_CUR, // BSD alias for SEEK_CUR
319 L_XTND = SEEK_END, // BSD alias for SEEK_END
320 }
321
322 [Map, Flags]
323 public enum DirectoryNotifyFlags : int {
324 // from /usr/include/bits/fcntl.h
325 DN_ACCESS = 0x00000001, // File accessed.
326 DN_MODIFY = 0x00000002, // File modified.
327 DN_CREATE = 0x00000004, // File created.
328 DN_DELETE = 0x00000008, // File removed.
329 DN_RENAME = 0x00000010, // File renamed.
330 DN_ATTRIB = 0x00000020, // File changed attributes.
331 DN_MULTISHOT = unchecked ((int)0x80000000), // Don't remove notifier
332 }
333
334 [Map]
335 public enum PosixFadviseAdvice : int {
336 POSIX_FADV_NORMAL = 0, // No further special treatment.
337 POSIX_FADV_RANDOM = 1, // Expect random page references.
338 POSIX_FADV_SEQUENTIAL = 2, // Expect sequential page references.
339 POSIX_FADV_WILLNEED = 3, // Will need these pages.
340 POSIX_FADV_DONTNEED = 4, // Don't need these pages.
341 POSIX_FADV_NOREUSE = 5, // Data will be accessed once.
342 }
343
344 [Map]
345 public enum PosixMadviseAdvice : int {
346 POSIX_MADV_NORMAL = 0, // No further special treatment.
347 POSIX_MADV_RANDOM = 1, // Expect random page references.
348 POSIX_MADV_SEQUENTIAL = 2, // Expect sequential page references.
349 POSIX_MADV_WILLNEED = 3, // Will need these pages.
350 POSIX_MADV_DONTNEED = 4, // Don't need these pages.
351 }
352
353 [Map]
354 public enum Signum : int {
355 SIGHUP = 1, // Hangup (POSIX).
356 SIGINT = 2, // Interrupt (ANSI).
357 SIGQUIT = 3, // Quit (POSIX).
358 SIGILL = 4, // Illegal instruction (ANSI).
359 SIGTRAP = 5, // Trace trap (POSIX).
360 SIGABRT = 6, // Abort (ANSI).
361 SIGIOT = 6, // IOT trap (4.2 BSD).
362 SIGBUS = 7, // BUS error (4.2 BSD).
363 SIGFPE = 8, // Floating-point exception (ANSI).
364 SIGKILL = 9, // Kill, unblockable (POSIX).
365 SIGUSR1 = 10, // User-defined signal 1 (POSIX).
366 SIGSEGV = 11, // Segmentation violation (ANSI).
367 SIGUSR2 = 12, // User-defined signal 2 (POSIX).
368 SIGPIPE = 13, // Broken pipe (POSIX).
369 SIGALRM = 14, // Alarm clock (POSIX).
370 SIGTERM = 15, // Termination (ANSI).
371 SIGSTKFLT = 16, // Stack fault.
372 SIGCLD = SIGCHLD, // Same as SIGCHLD (System V).
373 SIGCHLD = 17, // Child status has changed (POSIX).
374 SIGCONT = 18, // Continue (POSIX).
375 SIGSTOP = 19, // Stop, unblockable (POSIX).
376 SIGTSTP = 20, // Keyboard stop (POSIX).
377 SIGTTIN = 21, // Background read from tty (POSIX).
378 SIGTTOU = 22, // Background write to tty (POSIX).
379 SIGURG = 23, // Urgent condition on socket (4.2 BSD).
380 SIGXCPU = 24, // CPU limit exceeded (4.2 BSD).
381 SIGXFSZ = 25, // File size limit exceeded (4.2 BSD).
382 SIGVTALRM = 26, // Virtual alarm clock (4.2 BSD).
383 SIGPROF = 27, // Profiling alarm clock (4.2 BSD).
384 SIGWINCH = 28, // Window size change (4.3 BSD, Sun).
385 SIGPOLL = SIGIO, // Pollable event occurred (System V).
386 SIGIO = 29, // I/O now possible (4.2 BSD).
387 SIGPWR = 30, // Power failure restart (System V).
388 SIGSYS = 31, // Bad system call.
389 SIGUNUSED = 31
390 }
391
392 [Map][Flags]
393 public enum MountFlags : ulong {
394 MS_RDONLY = 1, // Mount read-only.
395 MS_NOSUID = 2, // Ignore suid and sgid bits.
396 MS_NODEV = 4, // Disallow access to device special files.
397 MS_NOEXEC = 8, // Disallow program execution.
398 MS_SYNCHRONOUS = 16, // Writes are synced at once.
399 MS_REMOUNT = 32, // Alter flags of a mounted FS.
400 MS_MANDLOCK = 64, // Allow mandatory locks on an FS.
401 S_WRITE = 128, // Write on file/directory/symlink.
402 S_APPEND = 256, // Append-only file.
403 S_IMMUTABLE = 512, // Immutable file.
404 MS_NOATIME = 1024, // Do not update access times.
405 MS_NODIRATIME = 2048, // Do not update directory access times.
406 MS_BIND = 4096, // Bind directory at different place.
407 MS_RMT_MASK = (MS_RDONLY | MS_MANDLOCK),
408 MS_MGC_VAL = 0xc0ed0000, // Magic flag number to indicate "new" flags
409 MS_MGC_MSK = 0xffff0000, // Magic flag number mask
410 }
411
412 [Map][Flags]
413 public enum UmountFlags : int {
414 MNT_FORCE = 1, // Force unmount even if busy
415 MNT_DETACH, // Perform a lazy unmount.
416 }
417
418 [Flags][Map]
419 public enum WaitOptions : int {
420 WNOHANG = 1, // Don't block waiting
421 WUNTRACED = 2, // Report status of stopped children
422 }
423
424 [Flags][Map]
425 public enum AccessMode : int {
426 R_OK = 1,
427 W_OK = 2,
428 X_OK = 4,
429 F_OK = 8,
430 }
431
432 [Map]
433 public enum PathConf : int {
434 _PC_LINK_MAX,
435 _PC_MAX_CANON,
436 _PC_MAX_INPUT,
437 _PC_NAME_MAX,
438 _PC_PATH_MAX,
439 _PC_PIPE_BUF,
440 _PC_CHOWN_RESTRICTED,
441 _PC_NO_TRUNC,
442 _PC_VDISABLE,
443 _PC_SYNC_IO,
444 _PC_ASYNC_IO,
445 _PC_PRIO_IO,
446 _PC_SOCK_MAXBUF,
447 _PC_FILESIZEBITS,
448 _PC_REC_INCR_XFER_SIZE,
449 _PC_REC_MAX_XFER_SIZE,
450 _PC_REC_MIN_XFER_SIZE,
451 _PC_REC_XFER_ALIGN,
452 _PC_ALLOC_SIZE_MIN,
453 _PC_SYMLINK_MAX,
454 _PC_2_SYMLINKS
455 }
456
457 [Map]
458 public enum SysConf : int {
459 _SC_ARG_MAX,
460 _SC_CHILD_MAX,
461 _SC_CLK_TCK,
462 _SC_NGROUPS_MAX,
463 _SC_OPEN_MAX,
464 _SC_STREAM_MAX,
465 _SC_TZNAME_MAX,
466 _SC_JOB_CONTROL,
467 _SC_SAVED_IDS,
468 _SC_REALTIME_SIGNALS,
469 _SC_PRIORITY_SCHEDULING,
470 _SC_TIMERS,
471 _SC_ASYNCHRONOUS_IO,
472 _SC_PRIORITIZED_IO,
473 _SC_SYNCHRONIZED_IO,
474 _SC_FSYNC,
475 _SC_MAPPED_FILES,
476 _SC_MEMLOCK,
477 _SC_MEMLOCK_RANGE,
478 _SC_MEMORY_PROTECTION,
479 _SC_MESSAGE_PASSING,
480 _SC_SEMAPHORES,
481 _SC_SHARED_MEMORY_OBJECTS,
482 _SC_AIO_LISTIO_MAX,
483 _SC_AIO_MAX,
484 _SC_AIO_PRIO_DELTA_MAX,
485 _SC_DELAYTIMER_MAX,
486 _SC_MQ_OPEN_MAX,
487 _SC_MQ_PRIO_MAX,
488 _SC_VERSION,
489 _SC_PAGESIZE,
490 _SC_RTSIG_MAX,
491 _SC_SEM_NSEMS_MAX,
492 _SC_SEM_VALUE_MAX,
493 _SC_SIGQUEUE_MAX,
494 _SC_TIMER_MAX,
495 /* Values for the argument to `sysconf'
496 corresponding to _POSIX2_* symbols. */
497 _SC_BC_BASE_MAX,
498 _SC_BC_DIM_MAX,
499 _SC_BC_SCALE_MAX,
500 _SC_BC_STRING_MAX,
501 _SC_COLL_WEIGHTS_MAX,
502 _SC_EQUIV_CLASS_MAX,
503 _SC_EXPR_NEST_MAX,
504 _SC_LINE_MAX,
505 _SC_RE_DUP_MAX,
506 _SC_CHARCLASS_NAME_MAX,
507 _SC_2_VERSION,
508 _SC_2_C_BIND,
509 _SC_2_C_DEV,
510 _SC_2_FORT_DEV,
511 _SC_2_FORT_RUN,
512 _SC_2_SW_DEV,
513 _SC_2_LOCALEDEF,
514 _SC_PII,
515 _SC_PII_XTI,
516 _SC_PII_SOCKET,
517 _SC_PII_INTERNET,
518 _SC_PII_OSI,
519 _SC_POLL,
520 _SC_SELECT,
521 _SC_UIO_MAXIOV,
522 _SC_IOV_MAX = _SC_UIO_MAXIOV,
523 _SC_PII_INTERNET_STREAM,
524 _SC_PII_INTERNET_DGRAM,
525 _SC_PII_OSI_COTS,
526 _SC_PII_OSI_CLTS,
527 _SC_PII_OSI_M,
528 _SC_T_IOV_MAX,
529 /* Values according to POSIX 1003.1c (POSIX threads). */
530 _SC_THREADS,
531 _SC_THREAD_SAFE_FUNCTIONS,
532 _SC_GETGR_R_SIZE_MAX,
533 _SC_GETPW_R_SIZE_MAX,
534 _SC_LOGIN_NAME_MAX,
535 _SC_TTY_NAME_MAX,
536 _SC_THREAD_DESTRUCTOR_ITERATIONS,
537 _SC_THREAD_KEYS_MAX,
538 _SC_THREAD_STACK_MIN,
539 _SC_THREAD_THREADS_MAX,
540 _SC_THREAD_ATTR_STACKADDR,
541 _SC_THREAD_ATTR_STACKSIZE,
542 _SC_THREAD_PRIORITY_SCHEDULING,
543 _SC_THREAD_PRIO_INHERIT,
544 _SC_THREAD_PRIO_PROTECT,
545 _SC_THREAD_PROCESS_SHARED,
546 _SC_NPROCESSORS_CONF,
547 _SC_NPROCESSORS_ONLN,
548 _SC_PHYS_PAGES,
549 _SC_AVPHYS_PAGES,
550 _SC_ATEXIT_MAX,
551 _SC_PASS_MAX,
552 _SC_XOPEN_VERSION,
553 _SC_XOPEN_XCU_VERSION,
554 _SC_XOPEN_UNIX,
555 _SC_XOPEN_CRYPT,
556 _SC_XOPEN_ENH_I18N,
557 _SC_XOPEN_SHM,
558 _SC_2_CHAR_TERM,
559 _SC_2_C_VERSION,
560 _SC_2_UPE,
561 _SC_XOPEN_XPG2,
562 _SC_XOPEN_XPG3,
563 _SC_XOPEN_XPG4,
564 _SC_CHAR_BIT,
565 _SC_CHAR_MAX,
566 _SC_CHAR_MIN,
567 _SC_INT_MAX,
568 _SC_INT_MIN,
569 _SC_LONG_BIT,
570 _SC_WORD_BIT,
571 _SC_MB_LEN_MAX,
572 _SC_NZERO,
573 _SC_SSIZE_MAX,
574 _SC_SCHAR_MAX,
575 _SC_SCHAR_MIN,
576 _SC_SHRT_MAX,
577 _SC_SHRT_MIN,
578 _SC_UCHAR_MAX,
579 _SC_UINT_MAX,
580 _SC_ULONG_MAX,
581 _SC_USHRT_MAX,
582 _SC_NL_ARGMAX,
583 _SC_NL_LANGMAX,
584 _SC_NL_MSGMAX,
585 _SC_NL_NMAX,
586 _SC_NL_SETMAX,
587 _SC_NL_TEXTMAX,
588 _SC_XBS5_ILP32_OFF32,
589 _SC_XBS5_ILP32_OFFBIG,
590 _SC_XBS5_LP64_OFF64,
591 _SC_XBS5_LPBIG_OFFBIG,
592 _SC_XOPEN_LEGACY,
593 _SC_XOPEN_REALTIME,
594 _SC_XOPEN_REALTIME_THREADS,
595 _SC_ADVISORY_INFO,
596 _SC_BARRIERS,
597 _SC_BASE,
598 _SC_C_LANG_SUPPORT,
599 _SC_C_LANG_SUPPORT_R,
600 _SC_CLOCK_SELECTION,
601 _SC_CPUTIME,
602 _SC_THREAD_CPUTIME,
603 _SC_DEVICE_IO,
604 _SC_DEVICE_SPECIFIC,
605 _SC_DEVICE_SPECIFIC_R,
606 _SC_FD_MGMT,
607 _SC_FIFO,
608 _SC_PIPE,
609 _SC_FILE_ATTRIBUTES,
610 _SC_FILE_LOCKING,
611 _SC_FILE_SYSTEM,
612 _SC_MONOTONIC_CLOCK,
613 _SC_MULTI_PROCESS,
614 _SC_SINGLE_PROCESS,
615 _SC_NETWORKING,
616 _SC_READER_WRITER_LOCKS,
617 _SC_SPIN_LOCKS,
618 _SC_REGEXP,
619 _SC_REGEX_VERSION,
620 _SC_SHELL,
621 _SC_SIGNALS,
622 _SC_SPAWN,
623 _SC_SPORADIC_SERVER,
624 _SC_THREAD_SPORADIC_SERVER,
625 _SC_SYSTEM_DATABASE,
626 _SC_SYSTEM_DATABASE_R,
627 _SC_TIMEOUTS,
628 _SC_TYPED_MEMORY_OBJECTS,
629 _SC_USER_GROUPS,
630 _SC_USER_GROUPS_R,
631 _SC_2_PBS,
632 _SC_2_PBS_ACCOUNTING,
633 _SC_2_PBS_LOCATE,
634 _SC_2_PBS_MESSAGE,
635 _SC_2_PBS_TRACK,
636 _SC_SYMLOOP_MAX,
637 _SC_STREAMS,
638 _SC_2_PBS_CHECKPOINT,
639 _SC_V6_ILP32_OFF32,
640 _SC_V6_ILP32_OFFBIG,
641 _SC_V6_LP64_OFF64,
642 _SC_V6_LPBIG_OFFBIG,
643 _SC_HOST_NAME_MAX,
644 _SC_TRACE,
645 _SC_TRACE_EVENT_FILTER,
646 _SC_TRACE_INHERIT,
647 _SC_TRACE_LOG,
648 _SC_LEVEL1_ICACHE_SIZE,
649 _SC_LEVEL1_ICACHE_ASSOC,
650 _SC_LEVEL1_ICACHE_LINESIZE,
651 _SC_LEVEL1_DCACHE_SIZE,
652 _SC_LEVEL1_DCACHE_ASSOC,
653 _SC_LEVEL1_DCACHE_LINESIZE,
654 _SC_LEVEL2_CACHE_SIZE,
655 _SC_LEVEL2_CACHE_ASSOC,
656 _SC_LEVEL2_CACHE_LINESIZE,
657 _SC_LEVEL3_CACHE_SIZE,
658 _SC_LEVEL3_CACHE_ASSOC,
659 _SC_LEVEL3_CACHE_LINESIZE,
660 _SC_LEVEL4_CACHE_SIZE,
661 _SC_LEVEL4_CACHE_ASSOC,
662 _SC_LEVEL4_CACHE_LINESIZE
663 }
664
665 [Map]
666 public enum ConfStr : int {
667 _CS_PATH, /* The default search path. */
668 _CS_V6_WIDTH_RESTRICTED_ENVS,
669 _CS_GNU_LIBC_VERSION,
670 _CS_GNU_LIBPTHREAD_VERSION,
671 _CS_LFS_CFLAGS = 1000,
672 _CS_LFS_LDFLAGS,
673 _CS_LFS_LIBS,
674 _CS_LFS_LINTFLAGS,
675 _CS_LFS64_CFLAGS,
676 _CS_LFS64_LDFLAGS,
677 _CS_LFS64_LIBS,
678 _CS_LFS64_LINTFLAGS,
679 _CS_XBS5_ILP32_OFF32_CFLAGS = 1100,
680 _CS_XBS5_ILP32_OFF32_LDFLAGS,
681 _CS_XBS5_ILP32_OFF32_LIBS,
682 _CS_XBS5_ILP32_OFF32_LINTFLAGS,
683 _CS_XBS5_ILP32_OFFBIG_CFLAGS,
684 _CS_XBS5_ILP32_OFFBIG_LDFLAGS,
685 _CS_XBS5_ILP32_OFFBIG_LIBS,
686 _CS_XBS5_ILP32_OFFBIG_LINTFLAGS,
687 _CS_XBS5_LP64_OFF64_CFLAGS,
688 _CS_XBS5_LP64_OFF64_LDFLAGS,
689 _CS_XBS5_LP64_OFF64_LIBS,
690 _CS_XBS5_LP64_OFF64_LINTFLAGS,
691 _CS_XBS5_LPBIG_OFFBIG_CFLAGS,
692 _CS_XBS5_LPBIG_OFFBIG_LDFLAGS,
693 _CS_XBS5_LPBIG_OFFBIG_LIBS,
694 _CS_XBS5_LPBIG_OFFBIG_LINTFLAGS,
695 _CS_POSIX_V6_ILP32_OFF32_CFLAGS,
696 _CS_POSIX_V6_ILP32_OFF32_LDFLAGS,
697 _CS_POSIX_V6_ILP32_OFF32_LIBS,
698 _CS_POSIX_V6_ILP32_OFF32_LINTFLAGS,
699 _CS_POSIX_V6_ILP32_OFFBIG_CFLAGS,
700 _CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS,
701 _CS_POSIX_V6_ILP32_OFFBIG_LIBS,
702 _CS_POSIX_V6_ILP32_OFFBIG_LINTFLAGS,
703 _CS_POSIX_V6_LP64_OFF64_CFLAGS,
704 _CS_POSIX_V6_LP64_OFF64_LDFLAGS,
705 _CS_POSIX_V6_LP64_OFF64_LIBS,
706 _CS_POSIX_V6_LP64_OFF64_LINTFLAGS,
707 _CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS,
708 _CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS,
709 _CS_POSIX_V6_LPBIG_OFFBIG_LIBS,
710 _CS_POSIX_V6_LPBIG_OFFBIG_LINTFLAGS
711 }
712
713 [Map]
714 public enum LockFlags : int {
715 F_ULOCK = 0, // Unlock a previously locked region.
716 F_LOCK = 1, // Lock a region for exclusive use.
717 F_TLOCK = 2, // Test and lock a region for exclusive use.
718 F_TEST = 3, // Test a region for other process locks.
719 }
720
721 [Map][Flags]
722 public enum PollEvents : short {
723 POLLIN = 0x0001, // There is data to read
724 POLLPRI = 0x0002, // There is urgent data to read
725 POLLOUT = 0x0004, // Writing now will not block
726 POLLERR = 0x0008, // Error condition
727 POLLHUP = 0x0010, // Hung up
728 POLLNVAL = 0x0020, // Invalid request; fd not open
729 // XPG4.2 definitions (via _XOPEN_SOURCE)
730 POLLRDNORM = 0x0040, // Normal data bay be read
731 POLLRDBAND = 0x0080, // Priority data may be read
732 POLLWRNORM = 0x0100, // Writing now will not block
733 POLLWRBAND = 0x0200, // Priority data may be written
734 }
735
736 [StructLayout(LayoutKind.Sequential)]
737 public struct Pollfd {
738 public int fd;
739 public PollEvents events;
740 public PollEvents revents;
741 }
742
743 public class Dirent
744 {
745 public /* ino_t */ ulong d_ino;
746 public /* off_t */ long d_off;
747 public ushort d_reclen;
748 public byte d_type;
749 public string d_name;
750
751 public override string ToString ()
752 {
753 return d_name;
754 }
755 }
756
757 public class Group
758 {
759 public string gr_name;
760 public string gr_passwd;
761 public /* gid_t */ uint gr_gid;
762 public string[] gr_mem;
763
764 // Generate string in /etc/group format
765 public override string ToString ()
766 {
767 StringBuilder sb = new StringBuilder ();
768 sb.AppendFormat ("{0}:{1}:{2}:", gr_name, gr_passwd, gr_gid);
769 GetMembers (sb, gr_mem);
770 return sb.ToString ();
771 }
772
773 private static void GetMembers (StringBuilder sb, string[] members)
774 {
775 if (members.Length > 0)
776 sb.Append (members[0]);
777 for (int i = 1; i < members.Length; ++i) {
778 sb.Append (",");
779 sb.Append (members[i]);
780 }
781 }
782 }
783
784 public class Passwd
785 {
786 public string pw_name;
787 public string pw_passwd;
788 public /* uid_t */ uint pw_uid;
789 public /* gid_t */ uint pw_gid;
790 public string pw_gecos;
791 public string pw_dir;
792 public string pw_shell;
793
794 // Generate string in /etc/passwd format
795 public override string ToString ()
796 {
797 return string.Format ("{0}:{1}:{2}:{3}:{4}:{5}:{6}",
798 pw_name, pw_passwd, pw_uid, pw_gid, pw_gecos, pw_dir, pw_shell);
799 }
800 }
801
802 public struct Stat {
803 public /* dev_t */ ulong st_dev; // device
804 public /* ino_t */ ulong st_ino; // inode
805 public FilePermissions st_mode; // protection
806 private uint _padding_; // padding for structure alignment
807 public /* nlink_t */ ulong st_nlink; // number of hard links
808 public /* uid_t */ uint st_uid; // user ID of owner
809 public /* gid_t */ uint st_gid; // group ID of owner
810 public /* dev_t */ ulong st_rdev; // device type (if inode device)
811 public /* off_t */ long st_size; // total size, in bytes
812 public /* blksize_t */ long st_blksize; // blocksize for filesystem I/O
813 public /* blkcnt_t */ long st_blocks; // number of blocks allocated
814 public /* time_t */ long st_atime; // time of last access
815 public /* time_t */ long st_mtime; // time of last modification
816 public /* time_t */ long st_ctime; // time of last status change
817 }
818
819 //
820 // Convention: Functions *not* part of the standard C library AND part of
821 // a POSIX and/or Unix standard (X/Open, SUS, XPG, etc.) go here.
822 //
823 // For example, the man page should be similar to:
824 //
825 // CONFORMING TO (or CONFORMS TO)
826 // XPG2, SUSv2, POSIX, etc.
827 //
828 // BSD- and GNU-specific exports can also be placed here.
829 //
830 // The only methods in here should be:
831 // (1) low-level functions
832 // (2) "Trivial" function overloads. For example, if the parameters to a
833 // function are related (e.g. getgroups(2))
834 // (3) The return type SHOULD NOT be changed. If you want to provide a
835 // convenient function with a nicer return type, place it into one of
836 // the Posix* wrapper classes, and give it a .NET-styled name.
837 // (4) Exceptions SHOULD NOT be thrown. EXCEPTIONS:
838 // - If you're wrapping *broken* methods which make assumptions about
839 // input data, such as that an argument refers to N bytes of data.
840 // This is currently limited to cuserid(3) and encrypt(3).
841 // - If you call functions which themselves generate exceptions.
842 // This is the case for using PosixConvert, which will throw an
843 // exception if an invalid/unsupported value is used.
844 //
845 public sealed class Syscall : Stdlib
846 {
847 private const string LIBC = "libc";
848 private const string MPH = "MonoPosixHelper";
849 private const string CRYPT = "crypt";
850
851 private Syscall () {}
852
853 //
854 // <aio.h>
855 //
856
857 // TODO: aio_cancel(3), aio_error(3), aio_fsync(3), aio_read(3),
858 // aio_return(3), aio_suspend(3), aio_write(3)
859 //
860 // Then update PosixStream.BeginRead to use the aio* functions.
861
862 //
863 // <dirent.h>
864 //
865
866 [DllImport (LIBC, SetLastError=true)]
867 public static extern IntPtr opendir (string name);
868
869 [DllImport (LIBC, SetLastError=true)]
870 public static extern int closedir (IntPtr dir);
871
872 // seekdir(3):
873 // void seekdir (DIR *dir, off_t offset);
874 // Slight modification. Returns -1 on error, 0 on success.
875 [DllImport (MPH, SetLastError=true,
876 EntryPoint="Mono_Posix_Syscall_seekdir")]
877 public static extern int seekdir (IntPtr dir, long offset);
878
879 // telldir(3)
880 // off_t telldir(DIR *dir);
881 [DllImport (MPH, SetLastError=true,
882 EntryPoint="Mono_Posix_Syscall_telldir")]
883 public static extern long telldir (IntPtr dir);
884
885 [DllImport (LIBC, SetLastError=true)]
886 public static extern void rewinddir (IntPtr dir);
887
888 private struct _Dirent {
889 public /* ino_t */ ulong d_ino;
890 public /* off_t */ long d_off;
891 public ushort d_reclen;
892 public byte d_type;
893 public IntPtr d_name;
894 }
895
896 private static void CopyDirent (Dirent to, ref _Dirent from)
897 {
898 try {
899 to.d_ino = from.d_ino;
900 to.d_off = from.d_off;
901 to.d_reclen = from.d_reclen;
902 to.d_type = from.d_type;
903 if (from.d_name != IntPtr.Zero)
904 to.d_name = PosixMarshal.PtrToString (from.d_name);
905 else
906 to.d_name = null;
907 }
908 finally {
909 Stdlib.free (from.d_name);
910 from.d_name = IntPtr.Zero;
911 }
912 }
913
914 [DllImport (MPH, SetLastError=true,
915 EntryPoint="Mono_Posix_Syscall_readdir")]
916 private static extern int sys_readdir (IntPtr dir, out _Dirent dentry);
917
918 public static Dirent readdir (IntPtr dir)
919 {
920 _Dirent dentry;
921 int r = sys_readdir (dir, out dentry);
922 if (r != 0)
923 return null;
924 Dirent d = new Dirent ();
925 CopyDirent (d, ref dentry);
926 return d;
927 }
928
929 [DllImport (MPH, SetLastError=true,
930 EntryPoint="Mono_Posix_Syscall_readdir_r")]
931 private static extern int sys_readdir_r (IntPtr dirp, out _Dirent entry, out IntPtr result);
932
933 public static int readdir_r (IntPtr dirp, Dirent entry, out IntPtr result)
934 {
935 entry.d_ino = 0;
936 entry.d_off = 0;
937 entry.d_reclen = 0;
938 entry.d_type = 0;
939 entry.d_name = null;
940
941 _Dirent _d;
942 int r = sys_readdir_r (dirp, out _d, out result);
943
944 if (r == 0 && result != IntPtr.Zero) {
945 CopyDirent (entry, ref _d);
946 }
947
948 return r;
949 }
950
951 [DllImport (LIBC, SetLastError=true)]
952 public static extern int dirfd (IntPtr dir);
953
954 //
955 // <errno.h>
956 //
957
958 public static Error GetLastError ()
959 {
960 int errno = Marshal.GetLastWin32Error ();
961 return PosixConvert.ToError (errno);
962 }
963
964 [DllImport (MPH, EntryPoint="Mono_Posix_Syscall_SetLastError")]
965 private static extern void SetLastError (int error);
966
967 public static void SetLastError (Error error)
968 {
969 int _error = PosixConvert.FromError (error);
970 SetLastError (_error);
971 }
972
973 // strerror_r(3)
974 // int strerror_r(int errnum, char *buf, size_t n);
975 [DllImport (LIBC, SetLastError=true,
976 EntryPoint="Mono_Posix_Syscall_strerror_r")]
977 private static extern int sys_strerror_r (int errnum,
978 [Out] StringBuilder buf, ulong n);
979
980 public static int strerror_r (Error errnum, StringBuilder buf, ulong n)
981 {
982 int e = PosixConvert.FromError (errnum);
983 return sys_strerror_r (e, buf, n);
984 }
985
986 public static int strerror_r (Error errnum, StringBuilder buf)
987 {
988 return strerror_r (errnum, buf, (ulong) buf.Capacity);
989 }
990
991 public static string strerror_r (Error errnum)
992 {
993 StringBuilder buf = new StringBuilder (16);
994 int r = 0;
995 do {
996 buf.Capacity *= 2;
997 r = strerror_r (errnum, buf);
998 } while (r == -1 && GetLastError() == Error.ERANGE);
999
1000 if (r == -1)
1001 return "** Unknown error code: " + ((int) errnum) + "**";
1002 return buf.ToString();
1003 }
1004
1005 //
1006 // <fcntl.h>
1007 //
1008 [DllImport (MPH, SetLastError=true,
1009 EntryPoint="Mono_Posix_Syscall_fcntl")]
1010 public static extern int fcntl (int fd, FcntlCommand cmd);
1011
1012 [DllImport (MPH, SetLastError=true,
1013 EntryPoint="Mono_Posix_Syscall_fcntl_arg")]
1014 public static extern int fcntl (int fd, FcntlCommand cmd, long arg);
1015
1016 [DllImport (MPH, SetLastError=true,
1017 EntryPoint="Mono_Posix_Syscall_fcntl_lock")]
1018 public static extern int fcntl (int fd, FcntlCommand cmd, ref Flock @lock);
1019
1020 [DllImport (MPH, SetLastError=true,
1021 EntryPoint="Mono_Posix_Syscall_open")]
1022 public static extern int open (string pathname, OpenFlags flags);
1023
1024 [DllImport (MPH, SetLastError=true,
1025 EntryPoint="Mono_Posix_Syscall_open_mode")]
1026 public static extern int open (string pathname, OpenFlags flags, FilePermissions mode);
1027
1028 [DllImport (MPH, SetLastError=true,
1029 EntryPoint="Mono_Posix_Syscall_creat")]
1030 public static extern int creat (string pathname, FilePermissions mode);
1031
1032 // posix_fadvise(2)
1033 // int posix_fadvise(int fd, off_t offset, off_t len, int advice);
1034 [DllImport (MPH, SetLastError=true,
1035 EntryPoint="Mono_Posix_Syscall_posix_fadvise")]
1036 public static extern int posix_fadvise (int fd, long offset,
1037 long len, PosixFadviseAdvice advice);
1038
1039 // posix_fallocate(P)
1040 // int posix_fallocate(int fd, off_t offset, size_t len);
1041 [DllImport (MPH, SetLastError=true,
1042 EntryPoint="Mono_Posix_Syscall_posix_fallocate")]
1043 public static extern int posix_fallocate (int fd, long offset, long len);
1044
1045 //
1046 // <grp.h>
1047 //
1048
1049 // setgroups(2)
1050 // int setgroups (size_t size, const gid_t *list);
1051 [DllImport (MPH, SetLastError=true,
1052 EntryPoint="Mono_Posix_Syscall_setgroups")]
1053 public static extern int setgroups (ulong size, uint[] list);
1054
1055 public static int setgroups (uint [] list)
1056 {
1057 return setgroups ((ulong) list.Length, list);
1058 }
1059
1060 private struct _Group
1061 {
1062 public IntPtr gr_name;
1063 public IntPtr gr_passwd;
1064 public /* gid_t */ uint gr_gid;
1065 public int _gr_nmem_;
1066 public IntPtr gr_mem;
1067 public IntPtr _gr_buf_;
1068 }
1069
1070 private static void CopyGroup (Group to, ref _Group from)
1071 {
1072 try {
1073 to.gr_gid = from.gr_gid;
1074 to.gr_name = PosixMarshal.PtrToString (from.gr_name);
1075 to.gr_passwd = PosixMarshal.PtrToString (from.gr_passwd);
1076 to.gr_mem = PosixMarshal.PtrToStringArray (from._gr_nmem_, from.gr_mem);
1077 }
1078 finally {
1079 Stdlib.free (from.gr_mem);
1080 Stdlib.free (from._gr_buf_);
1081 from.gr_mem = IntPtr.Zero;
1082 from._gr_buf_ = IntPtr.Zero;
1083 }
1084 }
1085
1086 [DllImport (MPH, SetLastError=true,
1087 EntryPoint="Mono_Posix_Syscall_getgrnam")]
1088 private static extern int sys_getgrnam (string name, out _Group group);
1089
1090 public static Group getgrnam (string name)
1091 {
1092 _Group group;
1093 int r = sys_getgrnam (name, out group);
1094 if (r != 0)
1095 return null;
1096 Group gr = new Group ();
1097 CopyGroup (gr, ref group);
1098 return gr;
1099 }
1100
1101 // getgrgid(3)
1102 // struct group *getgrgid(gid_t gid);
1103 [DllImport (MPH, SetLastError=true,
1104 EntryPoint="Mono_Posix_Syscall_getgrgid")]
1105 private static extern int sys_getgrgid (uint uid, out _Group group);
1106
1107 public static Group getgrgid (uint uid)
1108 {
1109 _Group group;
1110 int r = sys_getgrgid (uid, out group);
1111 if (r != 0)
1112 return null;
1113 Group gr = new Group ();
1114 CopyGroup (gr, ref group);
1115 return gr;
1116 }
1117
1118 [DllImport (MPH, SetLastError=true,
1119 EntryPoint="Mono_Posix_Syscall_getgrnam_r")]
1120 private static extern int sys_getgrnam_r (string name, out _Group grbuf, out IntPtr grbufp);
1121
1122 public static int getgrnam_r (string name, Group grbuf, out Group grbufp)
1123 {
1124 grbufp = null;
1125 _Group group;
1126 IntPtr _grbufp;
1127 int r = sys_getgrnam_r (name, out group, out _grbufp);
1128 if (r == 0 && _grbufp != IntPtr.Zero) {
1129 CopyGroup (grbuf, ref group);
1130 grbufp = grbuf;
1131 }
1132 return r;
1133 }
1134
1135 // getgrgid_r(3)
1136 // int getgrgid_r(gid_t gid, struct group *gbuf, char *buf,
1137 // size_t buflen, struct group **gbufp);
1138 [DllImport (MPH, SetLastError=true,
1139 EntryPoint="Mono_Posix_Syscall_getgrgid_r")]
1140 private static extern int sys_getgrgid_r (uint uid, out _Group grbuf, out IntPtr grbufp);
1141
1142 public static int getgrgid_r (uint uid, Group grbuf, out Group grbufp)
1143 {
1144 grbufp = null;
1145 _Group group;
1146 IntPtr _grbufp;
1147 int r = sys_getgrgid_r (uid, out group, out _grbufp);
1148 if (r == 0 && _grbufp != IntPtr.Zero) {
1149 CopyGroup (grbuf, ref group);
1150 grbufp = grbuf;
1151 }
1152 return r;
1153 }
1154
1155 [DllImport (MPH, SetLastError=true,
1156 EntryPoint="Mono_Posix_Syscall_getgrent")]
1157 private static extern int sys_getgrent (out _Group grbuf);
1158
1159 public static Group getgrent ()
1160 {
1161 _Group group;
1162 int r = sys_getgrent (out group);
1163 if (r != 0)
1164 return null;
1165 Group gr = new Group();
1166 CopyGroup (gr, ref group);
1167 return gr;
1168 }
1169
1170 [DllImport (LIBC, SetLastError=true)]
1171 public static extern void setgrent ();
1172
1173 [DllImport (LIBC, SetLastError=true)]
1174 public static extern void endgrent ();
1175
1176 [DllImport (MPH, SetLastError=true,
1177 EntryPoint="Mono_Posix_Syscall_fgetgrent")]
1178 private static extern int sys_fgetgrent (IntPtr stream, out _Group grbuf);
1179
1180 public static Group fgetgrent (IntPtr stream)
1181 {
1182 _Group group;
1183 int r = sys_fgetgrent (stream, out group);
1184 if (r != 0)
1185 return null;
1186 Group gr = new Group ();
1187 CopyGroup (gr, ref group);
1188 return gr;
1189 }
1190
1191 //
1192 // <pwd.h>
1193 //
1194 private struct _Passwd
1195 {
1196 public IntPtr pw_name;
1197 public IntPtr pw_passwd;
1198 public /* uid_t */ uint pw_uid;
1199 public /* gid_t */ uint pw_gid;
1200 public IntPtr pw_gecos;
1201 public IntPtr pw_dir;
1202 public IntPtr pw_shell;
1203 public IntPtr _pw_buf_;
1204 }
1205
1206 private static void CopyPasswd (Passwd to, ref _Passwd from)
1207 {
1208 try {
1209 to.pw_name = PosixMarshal.PtrToString (from.pw_name);
1210 to.pw_passwd = PosixMarshal.PtrToString (from.pw_passwd);
1211 to.pw_uid = from.pw_uid;
1212 to.pw_gid = from.pw_gid;
1213 to.pw_gecos = PosixMarshal.PtrToString (from.pw_gecos);
1214 to.pw_dir = PosixMarshal.PtrToString (from.pw_dir);
1215 to.pw_shell = PosixMarshal.PtrToString (from.pw_shell);
1216 }
1217 finally {
1218 Stdlib.free (from._pw_buf_);
1219 from._pw_buf_ = IntPtr.Zero;
1220 }
1221 }
1222
1223 [DllImport (MPH, SetLastError=true,
1224 EntryPoint="Mono_Posix_Syscall_getpwnam")]
1225 private static extern int sys_getpwnam (string name, out _Passwd passwd);
1226
1227 public static Passwd getpwnam (string name)
1228 {
1229 _Passwd passwd;
1230 int r = sys_getpwnam (name, out passwd);
1231 if (r != 0)
1232 return null;
1233 Passwd pw = new Passwd ();
1234 CopyPasswd (pw, ref passwd);
1235 return pw;
1236 }
1237
1238 // getpwuid(3)
1239 // struct passwd *getpwnuid(uid_t uid);
1240 [DllImport (MPH, SetLastError=true,
1241 EntryPoint="Mono_Posix_Syscall_getpwuid")]
1242 private static extern int sys_getpwuid (uint uid, out _Passwd passwd);
1243
1244 public static Passwd getpwuid (uint uid)
1245 {
1246 _Passwd passwd;
1247 int r = sys_getpwuid (uid, out passwd);
1248 if (r != 0)
1249 return null;
1250 Passwd pw = new Passwd ();
1251 CopyPasswd (pw, ref passwd);
1252 return pw;
1253 }
1254
1255 [DllImport (MPH, SetLastError=true,
1256 EntryPoint="Mono_Posix_Syscall_getpwnam_r")]
1257 private static extern int sys_getpwnam_r (string name, out _Passwd pwbuf, out IntPtr pwbufp);
1258
1259 public static int getpwnam_r (string name, Passwd pwbuf, out Passwd pwbufp)
1260 {
1261 pwbufp = null;
1262 _Passwd passwd;
1263 IntPtr _pwbufp;
1264 int r = sys_getpwnam_r (name, out passwd, out _pwbufp);
1265 if (r == 0 && _pwbufp != IntPtr.Zero) {
1266 CopyPasswd (pwbuf, ref passwd);
1267 pwbufp = pwbuf;
1268 }
1269 return r;
1270 }
1271
1272 // getpwuid_r(3)
1273 // int getpwuid_r(uid_t uid, struct passwd *pwbuf, char *buf, size_t
1274 // buflen, struct passwd **pwbufp);
1275 [DllImport (MPH, SetLastError=true,
1276 EntryPoint="Mono_Posix_Syscall_getpwuid_r")]
1277 private static extern int sys_getpwuid_r (uint uid, out _Passwd pwbuf, out IntPtr pwbufp);
1278
1279 public static int getpwuid_r (uint uid, Passwd pwbuf, out Passwd pwbufp)
1280 {
1281 pwbufp = null;
1282 _Passwd passwd;
1283 IntPtr _pwbufp;
1284 int r = sys_getpwuid_r (uid, out passwd, out _pwbufp);
1285 if (r == 0 && _pwbufp != IntPtr.Zero) {
1286 CopyPasswd (pwbuf, ref passwd);
1287 pwbufp = pwbuf;
1288 }
1289 return r;
1290 }
1291
1292 [DllImport (MPH, SetLastError=true,
1293 EntryPoint="Mono_Posix_Syscall_getpwent")]
1294 private static extern int sys_getpwent (out _Passwd pwbuf);
1295
1296 public static Passwd getpwent ()
1297 {
1298 _Passwd passwd;
1299 int r = sys_getpwent (out passwd);
1300 if (r != 0)
1301 return null;
1302 Passwd pw = new Passwd ();
1303 CopyPasswd (pw, ref passwd);
1304 return pw;
1305 }
1306
1307 [DllImport (LIBC, SetLastError=true)]
1308 public static extern void setpwent ();
1309
1310 [DllImport (LIBC, SetLastError=true)]
1311 public static extern void endpwent ();
1312
1313 [DllImport (MPH, SetLastError=true,
1314 EntryPoint="Mono_Posix_Syscall_fgetpwent")]
1315 private static extern int sys_fgetpwent (IntPtr stream, out _Passwd pwbuf);
1316
1317 public static Passwd fgetpwent (IntPtr stream)
1318 {
1319 _Passwd passwd;
1320 int r = sys_fgetpwent (stream, out passwd);
1321 if (r != 0)
1322 return null;
1323 Passwd pw = new Passwd ();
1324 CopyPasswd (pw, ref passwd);
1325 return pw;
1326 }
1327
1328 //
1329 // <signal.h>
1330 //
1331 [DllImport (LIBC, SetLastError=true)]
1332 private static extern void psignal (int sig, string s);
1333
1334 public static void psignal (Signum sig, string s)
1335 {
1336 int signum = PosixConvert.FromSignum (sig);
1337 psignal (signum, s);
1338 }
1339
1340 // kill(2)
1341 // int kill(pid_t pid, int sig);
1342 [DllImport (LIBC, SetLastError=true)]
1343 private static extern int sys_kill (int pid, int sig);
1344
1345 public static int kill (int pid, Signum sig)
1346 {
1347 int _sig = PosixConvert.FromSignum (sig);
1348 return sys_kill (pid, _sig);
1349 }
1350
1351 [DllImport (LIBC, SetLastError=true, EntryPoint="strsignal")]
1352 private static extern IntPtr sys_strsignal (int sig);
1353
1354 public static IntPtr sys_strsignal (Signum sig)
1355 {
1356 int s = PosixConvert.FromSignum (sig);
1357 return sys_strsignal (s);
1358 }
1359
1360 public static string strsignal (Signum sig)
1361 {
1362 IntPtr r = sys_strsignal (sig);
1363 return PosixMarshal.PtrToString (r);
1364 }
1365
1366 // TODO: sigaction(2)
1367 // TODO: sigsuspend(2)
1368 // TODO: sigpending(2)
1369
1370
1371 //
1372 // <stdio.h>
1373 //
1374 [DllImport (MPH, EntryPoint="Mono_Posix_Syscall_L_ctermid")]
1375 private static extern int _L_ctermid ();
1376
1377 public static readonly int L_ctermid = _L_ctermid ();
1378
1379 [DllImport (MPH, EntryPoint="Mono_Posix_Syscall_L_cuserid")]
1380 private static extern int _L_cuserid ();
1381
1382 public static readonly int L_cuserid = _L_cuserid ();
1383
1384 [DllImport (LIBC, SetLastError=true, EntryPoint="cuserid")]
1385 private static extern IntPtr sys_cuserid ([Out] StringBuilder @string);
1386
1387 [Obsolete ("\"Nobody knows precisely what cuserid() does... DO NOT USE cuserid()." +
1388 "`string' must hold L_cuserid characters. Use Unistd.getlogin_r instead.")]
1389 public static string cuserid (StringBuilder @string)
1390 {
1391 if (@string.Capacity < L_cuserid) {
1392 throw new ArgumentOutOfRangeException ("string", "string.Capacity < L_cuserid");
1393 }
1394 IntPtr r = sys_cuserid (@string);
1395 return PosixMarshal.PtrToString (r);
1396 }
1397
1398 //
1399 // <stdlib.h>
1400 //
1401 [DllImport (LIBC, SetLastError=true)]
1402 public static extern int ttyslot ();
1403
1404 [DllImport (CRYPT, SetLastError=true)]
1405 public static extern void setkey (string key);
1406
1407 //
1408 // <sys/mman.h>
1409 //
1410
1411 // posix_madvise(P)
1412 // int posix_madvise(void *addr, size_t len, int advice);
1413 [DllImport (MPH, SetLastError=true,
1414 EntryPoint="Mono_Posix_Syscall_posix_madvise")]
1415 public static extern int posix_madvise (IntPtr addr, ulong len,
1416 PosixMadviseAdvice advice);
1417
1418 //
1419 // <sys/mount.h>
1420 //
1421 [DllImport (MPH, SetLastError=true,
1422 EntryPoint="Mono_Posix_Syscall_mount")]
1423 public static extern int mount (string source, string target,
1424 string filesystemtype, MountFlags mountflags, string data);
1425
1426 [DllImport (MPH, SetLastError=true,
1427 EntryPoint="Mono_Posix_Syscall_umount")]
1428 public static extern int umount (string target);
1429
1430 [DllImport (MPH, SetLastError=true,
1431 EntryPoint="Mono_Posix_Syscall_umount2")]
1432 private static extern int sys_umount2 (string target, int flags);
1433
1434 public static int umount2 (string target, UmountFlags flags)
1435 {
1436 int _flags = PosixConvert.FromUmountFlags (flags);
1437 return sys_umount2 (target, _flags);
1438 }
1439
1440 //
1441 // <sys/poll.h>
1442 //
1443 private struct _pollfd {
1444 public int fd;
1445 public short events;
1446 public short revents;
1447 }
1448
1449 [DllImport (LIBC, SetLastError=true, EntryPoint="poll")]
1450 private static extern int sys_poll (_pollfd[] ufds, uint nfds, int timeout);
1451
1452 public static int poll (Pollfd [] fds, uint nfds, int timeout)
1453 {
1454 if (fds.Length < nfds)
1455 throw new ArgumentOutOfRangeException ("fds", "Must refer to at least `nfds' elements");
1456
1457 _pollfd[] send = new _pollfd[nfds];
1458
1459 for (int i = 0; i < send.Length; i++) {
1460 send [i].fd = fds [i].fd;
1461 send [i].events = PosixConvert.FromPollEvents (fds [i].events);
1462 }
1463
1464 int r = sys_poll (send, nfds, timeout);
1465
1466 for (int i = 0; i < send.Length; i++) {
1467 fds [i].revents = PosixConvert.ToPollEvents (send [i].revents);
1468 }
1469
1470 return r;
1471 }
1472
1473 public static int poll (Pollfd [] fds, int timeout)
1474 {
1475 return poll (fds, (uint) fds.Length, timeout);
1476 }
1477
1478 //
1479 // <sys/ptrace.h>
1480 //
1481
1482 // TODO: ptrace(2)
1483
1484 //
1485 // <sys/resource.h>
1486 //
1487
1488 // TODO: setrlimit(2)
1489 // TODO: getrlimit(2)
1490 // TODO: getrusage(2)
1491
1492 //
1493 // <sys/sendfile.h>
1494 //
1495
1496 [DllImport (MPH, SetLastError=true,
1497 EntryPoint="Mono_Posix_Syscall_sendfile")]
1498 public static extern long sendfile (int out_fd, int in_fd,
1499 ref long offset, ulong count);
1500
1501 //
1502 // <sys/stat.h>
1503 //
1504 [DllImport (MPH, SetLastError=true,
1505 EntryPoint="Mono_Posix_Syscall_stat")]
1506 public static extern int stat (string file_name, out Stat buf);
1507
1508 [DllImport (MPH, SetLastError=true,
1509 EntryPoint="Mono_Posix_Syscall_fstat")]
1510 public static extern int fstat (int filedes, out Stat buf);
1511
1512 [DllImport (MPH, SetLastError=true,
1513 EntryPoint="Mono_Posix_Syscall_lstat")]
1514 public static extern int lstat (string file_name, out Stat buf);
1515
1516 [DllImport (LIBC, SetLastError=true, EntryPoint="chmod")]
1517 private static extern int sys_chmod (string path, uint mode);
1518
1519 public static int chmod (string path, FilePermissions mode)
1520 {
1521 uint _mode = PosixConvert.FromFilePermissions (mode);
1522 return sys_chmod (path, _mode);
1523 }
1524
1525 [DllImport (LIBC, SetLastError=true, EntryPoint="fchmod")]
1526 private static extern int sys_fchmod (int filedes, uint mode);
1527
1528 public static int fchmod (int filedes, FilePermissions mode)
1529 {
1530 uint _mode = PosixConvert.FromFilePermissions (mode);
1531 return sys_fchmod (filedes, _mode);
1532 }
1533
1534 [DllImport (LIBC, SetLastError=true, EntryPoint="umask")]
1535 private static extern int sys_umask (uint mask);
1536
1537 public static int umask (FilePermissions mask)
1538 {
1539 uint _mask = PosixConvert.FromFilePermissions (mask);
1540 return sys_umask (_mask);
1541 }
1542
1543 [DllImport (LIBC, SetLastError=true, EntryPoint="mkdir")]
1544 public static extern int sys_mkdir (string oldpath, uint mode);
1545
1546 public static int mkdir (string oldpath, FilePermissions mode)
1547 {
1548 uint _mode = PosixConvert.FromFilePermissions (mode);
1549 return sys_mkdir (oldpath, _mode);
1550 }
1551
1552 // TODO: mknod(2)
1553
1554 //
1555 // <sys/time.h>
1556 //
1557
1558 // TODO: gettimeofday(2)
1559 // TODO: settimeofday(2)
1560
1561 //
1562 // <sys/timeb.h>
1563 //
1564
1565 // TODO: ftime(3)
1566
1567 //
1568 // <sys/times.h>
1569 //
1570
1571 // TODO: times(2)
1572
1573 //
1574 // <sys/wait.h>
1575 //
1576
1577 // wait(2)
1578 // pid_t wait(int *status);
1579 [DllImport (LIBC, SetLastError=true)]
1580 public static extern int wait (out int status);
1581
1582 // waitpid(2)
1583 // pid_t waitpid(pid_t pid, int *status, int options);
1584 [DllImport (LIBC, SetLastError=true)]
1585 private static extern int waitpid (int pid, out int status, int options);
1586
1587 public static int waitpid (int pid, out int status, WaitOptions options)
1588 {
1589 int _options = PosixConvert.FromWaitOptions (options);
1590 return waitpid (pid, out status, _options);
1591 }
1592
1593 [DllImport (MPH, EntryPoint="Mono_Posix_Syscall_WIFEXITED")]
1594 private static extern int _WIFEXITED (int status);
1595
1596 public static bool WIFEXITED (int status)
1597 {
1598 return _WIFEXITED (status) != 0;
1599 }
1600
1601 [DllImport (MPH, EntryPoint="Mono_Posix_Syscall_WEXITSTATUS")]
1602 public static extern int WEXITSTATUS (int status);
1603
1604 [DllImport (MPH, EntryPoint="Mono_Posix_Syscall_WIFSIGNALED")]
1605 private static extern int _WIFSIGNALED (int status);
1606
1607 public static bool WIFSIGNALED (int status)
1608 {
1609 return _WIFSIGNALED (status) != 0;
1610 }
1611
1612 [DllImport (MPH, EntryPoint="Mono_Posix_Syscall_WTERMSIG")]
1613 private static extern int _WTERMSIG (int status);
1614
1615 public static Signum WTERMSIG (int status)
1616 {
1617 int r = _WTERMSIG (status);
1618 return PosixConvert.ToSignum (r);
1619 }
1620
1621 [DllImport (MPH, EntryPoint="Mono_Posix_Syscall_WIFSTOPPED")]
1622 private static extern int _WIFSTOPPED (int status);
1623
1624 public static bool WIFSTOPPED (int status)
1625 {
1626 return _WIFSTOPPED (status) != 0;
1627 }
1628
1629 [DllImport (MPH, EntryPoint="Mono_Posix_Syscall_WSTOPSIG")]
1630 private static extern int _WSTOPSIG (int status);
1631
1632 public static Signum WSTOPSIG (int status)
1633 {
1634 int r = _WSTOPSIG (status);
1635 return PosixConvert.ToSignum (r);
1636 }
1637
1638 //
1639 // <time.h>
1640 //
1641
1642 // stime(2)
1643 // int stime(time_t *t);
1644 [DllImport (MPH, SetLastError=true,
1645 EntryPoint="Mono_Posix_Syscall_stime")]
1646 public static extern int stime (ref long t);
1647
1648 // time(2)
1649 // time_t time(time_t *t);
1650 [DllImport (MPH, SetLastError=true,
1651 EntryPoint="Mono_Posix_Syscall_time")]
1652 public static extern long time (out long t);
1653
1654 //
1655 // <ulimit.h>
1656 //
1657
1658 // TODO: ulimit(3)
1659
1660 //
1661 // <unistd.h>
1662 //
1663 [DllImport (LIBC, SetLastError=true, EntryPoint="access")]
1664 private static extern int sys_access (string pathname, int mode);
1665
1666 public static int access (string pathname, AccessMode mode)
1667 {
1668 int _mode = PosixConvert.FromAccessMode (mode);
1669 return sys_access (pathname, _mode);
1670 }
1671
1672 // lseek(2)
1673 // off_t lseek(int filedes, off_t offset, int whence);
1674 [DllImport (MPH, SetLastError=true,
1675 EntryPoint="Mono_Posix_Syscall_lseek")]
1676 public static extern long lseek (int fd, long offset, SeekFlags whence);
1677
1678 [DllImport (LIBC, SetLastError=true)]
1679 public static extern int close (int fd);
1680
1681 // read(2)
1682 // ssize_t read(int fd, void *buf, size_t count);
1683 [DllImport (MPH, SetLastError=true,
1684 EntryPoint="Mono_Posix_Syscall_read")]
1685 public static extern long read (int fd, IntPtr buf, ulong count);
1686
1687 public static unsafe long read (int fd, void *buf, ulong count)
1688 {
1689 return read (fd, (IntPtr) buf, count);
1690 }
1691
1692 // write(2)
1693 // ssize_t write(int fd, const void *buf, size_t count);
1694 [DllImport (MPH, SetLastError=true,
1695 EntryPoint="Mono_Posix_Syscall_write")]
1696 public static extern long write (int fd, IntPtr buf, ulong count);
1697
1698 public static unsafe long write (int fd, void *buf, ulong count)
1699 {
1700 return write (fd, (IntPtr) buf, count);
1701 }
1702
1703 // pread(2)
1704 // ssize_t pread(int fd, void *buf, size_t count, off_t offset);
1705 [DllImport (MPH, SetLastError=true,
1706 EntryPoint="Mono_Posix_Syscall_pread")]
1707 public static extern long pread (int fd, IntPtr buf, ulong count, long offset);
1708
1709 public static unsafe long pread (int fd, void *buf, ulong count, long offset)
1710 {
1711 return pread (fd, (IntPtr) buf, count, offset);
1712 }
1713
1714 // pwrite(2)
1715 // ssize_t pwrite(int fd, const void *buf, size_t count, off_t offset);
1716 [DllImport (MPH, SetLastError=true,
1717 EntryPoint="Mono_Posix_Syscall_pwrite")]
1718 public static extern long pwrite (int fd, IntPtr buf, ulong count, long offset);
1719
1720 public static unsafe long pwrite (int fd, void *buf, ulong count, long offset)
1721 {
1722 return pwrite (fd, (IntPtr) buf, count, offset);
1723 }
1724
1725 [DllImport (MPH, SetLastError=true,
1726 EntryPoint="Mono_Posix_Syscall_pipe")]
1727 public static extern int pipe (out int reading, out int writing);
1728
1729 public static int pipe (int[] filedes)
1730 {
1731 if (filedes == null || filedes.Length != 2) {
1732 // TODO: set errno
1733 return -1;
1734 }
1735 int reading, writing;
1736 int r = pipe (out reading, out writing);
1737 filedes[0] = reading;
1738 filedes[1] = writing;
1739 return r;
1740 }
1741
1742 [DllImport (LIBC, SetLastError=true)]
1743 public static extern uint alarm (uint seconds);
1744
1745 [DllImport (LIBC, SetLastError=true)]
1746 public static extern int sleep (uint seconds);
1747
1748 [DllImport (LIBC, SetLastError=true)]
1749 public static extern uint ualarm (uint usecs, uint interval);
1750
1751 [DllImport (LIBC, SetLastError=true)]
1752 public static extern int pause ();
1753
1754 // chown(2)
1755 // int chown(const char *path, uid_t owner, gid_t group);
1756 [DllImport (LIBC, SetLastError=true)]
1757 public static extern int chown (string path, uint owner, uint group);
1758
1759 // fchown(2)
1760 // int fchown(int fd, uid_t owner, gid_t group);
1761 [DllImport (LIBC, SetLastError=true)]
1762 public static extern int fchown (int fd, uint owner, uint group);
1763
1764 // lchown(2)
1765 // int lchown(const char *path, uid_t owner, gid_t group);
1766 [DllImport (LIBC, SetLastError=true)]
1767 public static extern int lchown (string path, uint owner, uint group);
1768
1769 [DllImport (LIBC, SetLastError=true)]
1770 public static extern int chdir (string path);
1771
1772 [DllImport (LIBC, SetLastError=true)]
1773 public static extern int fchdir (int fd);
1774
1775 // getcwd(3)
1776 // char *getcwd(char *buf, size_t size);
1777 [DllImport (MPH, SetLastError=true,
1778 EntryPoint="Mono_Posix_Syscall_getcwd")]
1779 public static extern IntPtr getcwd ([Out] StringBuilder buf, ulong size);
1780
1781 public static StringBuilder getcwd (StringBuilder buf)
1782 {
1783 getcwd (buf, (ulong) buf.Capacity);
1784 return buf;
1785 }
1786
1787 // getwd(2) is deprecated; don't expose it.
1788
1789 [DllImport (LIBC, SetLastError=true)]
1790 public static extern int dup (int fd);
1791
1792 [DllImport (LIBC, SetLastError=true)]
1793 public static extern int dup2 (int fd, int fd2);
1794
1795 // TODO: does Mono marshal arrays properly?
1796 [DllImport (LIBC, SetLastError=true)]
1797 public static extern int execve (string path, string[] argv, string[] envp);
1798
1799 [DllImport (LIBC, SetLastError=true)]
1800 public static extern int execv (string path, string[] argv);
1801
1802 // TODO: execle, execl
1803 [DllImport (LIBC, SetLastError=true)]
1804 public static extern int execvp (string path, string[] argv);
1805
1806 [DllImport (LIBC, SetLastError=true)]
1807 public static extern int nice (int inc);
1808
1809 [DllImport (LIBC, SetLastError=true)]
1810 public static extern int _exit (int status);
1811
1812 [DllImport (MPH, SetLastError=true,
1813 EntryPoint="Mono_Posix_Syscall_fpathconf")]
1814 public static extern long fpathconf (int filedes, PathConf name);
1815
1816 [DllImport (MPH, SetLastError=true,
1817 EntryPoint="Mono_Posix_Syscall_pathconf")]
1818 public static extern long pathconf (string path, PathConf name);
1819
1820 [DllImport (MPH, SetLastError=true,
1821 EntryPoint="Mono_Posix_Syscall_sysconf")]
1822 public static extern long sysconf (SysConf name);
1823
1824 // confstr(3)
1825 // size_t confstr(int name, char *buf, size_t len);
1826 [DllImport (MPH, SetLastError=true,
1827 EntryPoint="Mono_Posix_Syscall_confstr")]
1828 public static extern ulong confstr (ConfStr name, [Out] StringBuilder buf, ulong len);
1829
1830 // getpid(2)
1831 // pid_t getpid(void);
1832 [DllImport (LIBC, SetLastError=true)]
1833 public static extern int getpid ();
1834
1835 // setpgid(2)
1836 // int setpgid(pid_t pid, pid_t pgid);
1837 [DllImport (LIBC, SetLastError=true)]
1838 public static extern int setpgid (int pid, int pgid);
1839
1840 // getpgid(2)
1841 // pid_t getpgid(pid_t pid);
1842 [DllImport (LIBC, SetLastError=true)]
1843 public static extern int getpgid (int pid);
1844
1845 [DllImport (LIBC, SetLastError=true)]
1846 public static extern int setpgrp ();
1847
1848 // getpgrp(2)
1849 // pid_t getpgrp(void);
1850 [DllImport (LIBC, SetLastError=true)]
1851 public static extern int getpgrp ();
1852
1853 // setsid(2)
1854 // pid_t setsid(void);
1855 [DllImport (LIBC, SetLastError=true)]
1856 public static extern int setsid ();
1857
1858 // getsid(2)
1859 // pid_t getsid(pid_t pid);
1860 [DllImport (LIBC, SetLastError=true)]
1861 public static extern int getsid (int pid);
1862
1863 // getuid(2)
1864 // uid_t getuid(void);
1865 [DllImport (LIBC, SetLastError=true)]
1866 public static extern uint getuid ();
1867
1868 // geteuid(2)
1869 // uid_t geteuid(void);
1870 [DllImport (LIBC, SetLastError=true)]
1871 public static extern uint geteuid ();
1872
1873 // getgid(2)
1874 // gid_t getgid(void);
1875 [DllImport (LIBC, SetLastError=true)]
1876 public static extern uint getgid ();
1877
1878 // getegid(2)
1879 // gid_t getgid(void);
1880 [DllImport (LIBC, SetLastError=true)]
1881 public static extern uint getegid ();
1882
1883 // getgroups(2)
1884 // int getgroups(int size, gid_t list[]);
1885 [DllImport (LIBC, SetLastError=true)]
1886 public static extern int getgroups (int size, uint[] list);
1887
1888 public static int getgroups (uint[] list)
1889 {
1890 return getgroups (list.Length, list);
1891 }
1892
1893 // setuid(2)
1894 // int setuid(uid_t uid);
1895 [DllImport (LIBC, SetLastError=true)]
1896 public static extern int setuid (uint uid);
1897
1898 // setreuid(2)
1899 // int setreuid(uid_t ruid, uid_t euid);
1900 [DllImport (LIBC, SetLastError=true)]
1901 public static extern int setreuid (uint ruid, uint euid);
1902
1903 // setregid(2)
1904 // int setregid(gid_t ruid, gid_t euid);
1905 [DllImport (LIBC, SetLastError=true)]
1906 public static extern int setregid (uint rgid, uint egid);
1907
1908 // seteuid(2)
1909 // int seteuid(uid_t euid);
1910 [DllImport (LIBC, SetLastError=true)]
1911 public static extern int seteuid (uint euid);
1912
1913 // setegid(2)
1914 // int setegid(gid_t euid);
1915 [DllImport (LIBC, SetLastError=true)]
1916 public static extern int setegid (uint uid);
1917
1918 // setgid(2)
1919 // int setgid(gid_t gid);
1920 [DllImport (LIBC, SetLastError=true)]
1921 public static extern int setgid (uint gid);
1922
1923 // getresuid(2)
1924 // int getresuid(uid_t *ruid, uid_t *euid, uid_t *suid);
1925 [DllImport (LIBC, SetLastError=true)]
1926 public static extern int getresuid (out uint ruid, out uint euid, out uint suid);
1927
1928 // getresgid(2)
1929 // int getresgid(gid_t *ruid, gid_t *euid, gid_t *suid);
1930 [DllImport (LIBC, SetLastError=true)]
1931 public static extern int getresgid (out uint rgid, out uint egid, out uint sgid);
1932
1933 // setresuid(2)
1934 // int setresuid(uid_t ruid, uid_t euid, uid_t suid);
1935 [DllImport (LIBC, SetLastError=true)]
1936 public static extern int setresuid (uint ruid, uint euid, uint suid);
1937
1938 // setresgid(2)
1939 // int setresgid(gid_t ruid, gid_t euid, gid_t suid);
1940 [DllImport (LIBC, SetLastError=true)]
1941 public static extern int setresgid (uint rgid, uint egid, uint sgid);
1942
1943 // fork(2)
1944 // pid_t fork(void);
1945 [DllImport (LIBC, SetLastError=true)]
1946 [Obsolete ("DO NOT directly call fork(2); it bypasses essential " +
1947 "shutdown code.\nUse System.Diagnostics.Process instead")]
1948 public static extern int fork ();
1949
1950 // vfork(2)
1951 // pid_t vfork(void);
1952 [DllImport (LIBC, SetLastError=true)]
1953 [Obsolete ("DO NOT directly call vfork(2); it bypasses essential " +
1954 "shutdown code.\nUse System.Diagnostics.Process instead")]
1955 public static extern int vfork ();
1956
1957 [DllImport (LIBC, SetLastError=true, EntryPoint="ttyname")]
1958 [Obsolete ("Not re-entrant. Use ttyname_r instead.")]
1959 public static extern IntPtr sys_ttyname (int fd);
1960
1961 [Obsolete ("Not re-entrant. Use ttyname_r instead.")]
1962 public static string ttyname (int fd)
1963 {
1964 IntPtr r = sys_ttyname (fd);
1965 return PosixMarshal.PtrToString (r);
1966 }
1967
1968 // ttyname_r(3)
1969 // int ttyname_r(int fd, char *buf, size_t buflen);
1970 [DllImport (MPH, SetLastError=true,
1971 EntryPoint="Mono_Posix_Syscall_ttyname_r")]
1972 public static extern int ttyname_r (int fd, [Out] StringBuilder buf, ulong buflen);
1973
1974 public static int ttyname_r (int fd, StringBuilder buf)
1975 {
1976 return ttyname_r (fd, buf, (ulong) buf.Capacity);
1977 }
1978
1979 [DllImport (LIBC, EntryPoint="isatty")]
1980 private static extern int sys_isatty (int fd);
1981
1982 public static bool isatty (int fd)
1983 {
1984 return sys_isatty (fd) == 1;
1985 }
1986
1987 [DllImport (LIBC, SetLastError=true)]
1988 public static extern int link (string oldpath, string newpath);
1989
1990 [DllImport (LIBC, SetLastError=true)]
1991 public static extern int symlink (string oldpath, string newpath);
1992
1993 // readlink(2)
1994 // int readlink(const char *path, char *buf, size_t bufsize);
1995 [DllImport (MPH, SetLastError=true,
1996 EntryPoint="Mono_Posix_Syscall_readlink")]
1997 public static extern int readlink (string path, [Out] StringBuilder buf, ulong bufsiz);
1998
1999 public static int readlink (string path, [Out] StringBuilder buf)
2000 {
2001 return readlink (path, buf, (ulong) buf.Capacity);
2002 }
2003
2004 [DllImport (LIBC, SetLastError=true)]
2005 public static extern int unlink (string pathname);
2006
2007 [DllImport (LIBC, SetLastError=true)]
2008 public static extern int rmdir (string pathname);
2009
2010 // tcgetpgrp(3)
2011 // pid_t tcgetpgrp(int fd);
2012 [DllImport (LIBC, SetLastError=true)]
2013 public static extern int tcgetpgrp (int fd);
2014
2015 // tcsetpgrp(3)
2016 // int tcsetpgrp(int fd, pid_t pgrp);
2017 [DllImport (LIBC, SetLastError=true)]
2018 public static extern int tcsetpgrp (int fd, int pgrp);
2019
2020 [DllImport (LIBC, SetLastError=true, EntryPoint="getlogin")]
2021 [Obsolete ("Not re-entrant. Use getlogin_r instead.")]
2022 public static extern IntPtr sys_getlogin ();
2023
2024 [Obsolete ("Not re-entrant. Use getlogin_r instead.")]
2025 public static string getlogin ()
2026 {
2027 IntPtr r = sys_getlogin ();
2028 return PosixMarshal.PtrToString (r);
2029 }
2030
2031 // getlogin_r(3)
2032 // int getlogin_r(char *buf, size_t bufsize);
2033 [DllImport (MPH, SetLastError=true,
2034 EntryPoint="Mono_Posix_Syscall_getlogin_r")]
2035 public static extern int getlogin_r ([Out] StringBuilder name, ulong bufsize);
2036
2037 public static int getlogin_r (StringBuilder name)
2038 {
2039 return getlogin_r (name, (ulong) name.Capacity);
2040 }
2041
2042 // gethostname(2)
2043 // int gethostname(char *name, size_t len);
2044 [DllImport (MPH, SetLastError=true,
2045 EntryPoint="Mono_Posix_Syscall_gethostname")]
2046 public static extern int gethostname ([Out] StringBuilder name, ulong len);
2047
2048 public static int gethostname (StringBuilder name)
2049 {
2050 return gethostname (name, (ulong) name.Capacity);
2051 }
2052
2053 // sethostname(2)
2054 // int gethostname(const char *name, size_t len);
2055 [DllImport (MPH, SetLastError=true,
2056 EntryPoint="Mono_Posix_Syscall_gethostname")]
2057 public static extern int sethostname (string name, ulong len);
2058
2059 public static int sethostname (string name)
2060 {
2061 return sethostname (name, (ulong) name.Length);
2062 }
2063
2064 [DllImport (MPH, SetLastError=true,
2065 EntryPoint="Mono_Posix_Syscall_gethostid")]
2066 public static extern long gethostid ();
2067
2068 [DllImport (MPH, SetLastError=true,
2069 EntryPoint="Mono_Posix_Syscall_sethostid")]
2070 public static extern int sethostid (long hostid);
2071
2072 // getdomainname(2)
2073 // int getdomainname(char *name, size_t len);
2074 [DllImport (MPH, SetLastError=true,
2075 EntryPoint="Mono_Posix_Syscall_getdomainname")]
2076 public static extern int getdomainname ([Out] StringBuilder name, ulong len);
2077
2078 public static int getdomainname (StringBuilder name)
2079 {
2080 return getdomainname (name, (ulong) name.Capacity);
2081 }
2082
2083 // setdomainname(2)
2084 // int setdomainname(const char *name, size_t len);
2085 [DllImport (MPH, SetLastError=true,
2086 EntryPoint="Mono_Posix_Syscall_setdomainname")]
2087 public static extern int setdomainname (string name, ulong len);
2088
2089 public static int setdomainname (string name)
2090 {
2091 return setdomainname (name, (ulong) name.Length);
2092 }
2093
2094 [DllImport (LIBC, SetLastError=true)]
2095 public static extern int vhangup ();
2096
2097 // Revoke doesn't appear to be POSIX. Include it?
2098 [DllImport (LIBC, SetLastError=true)]
2099 public static extern int revoke (string file);
2100
2101 // TODO: profil? It's not POSIX.
2102
2103 [DllImport (LIBC, SetLastError=true)]
2104 public static extern int acct (string filename);
2105
2106 [DllImport (LIBC, SetLastError=true, EntryPoint="getusershell")]
2107 public static extern IntPtr sys_getusershell ();
2108
2109 public static string getusershell ()
2110 {
2111 IntPtr r = sys_getusershell ();
2112 return PosixMarshal.PtrToString (r);
2113 }
2114
2115 [DllImport (LIBC, SetLastError=true)]
2116 public static extern void setusershell ();
2117
2118 [DllImport (LIBC, SetLastError=true)]
2119 public static extern void endusershell ();
2120
2121 [DllImport (LIBC, SetLastError=true)]
2122 private static extern int daemon (int nochdir, int noclose);
2123
2124 public static int daemon (bool nochdir, bool noclose)
2125 {
2126 return daemon (nochdir ? 1 : 0, noclose ? 1 : 0);
2127 }
2128
2129 [DllImport (LIBC, SetLastError=true)]
2130 public static extern int chroot (string path);
2131
2132 // skipping getpass(3) as the man page states:
2133 // This function is obsolete. Do not use it.
2134
2135 [DllImport (LIBC, SetLastError=true)]
2136 public static extern int fsync (int fd);
2137
2138 [DllImport (LIBC, SetLastError=true)]
2139 public static extern int fdatasync (int fd);
2140
2141 [DllImport (LIBC, SetLastError=true)]
2142 public static extern void sync ();
2143
2144 [DllImport (LIBC, SetLastError=true)]
2145 [Obsolete ("Dropped in POSIX 1003.1-2001. " +
2146 "Use Unistd.sysconf (SysConf._SC_PAGESIZE).")]
2147 public static extern int getpagesize ();
2148
2149 // truncate(2)
2150 // int truncate(const char *path, off_t length);
2151 [DllImport (MPH, SetLastError=true,
2152 EntryPoint="Mono_Posix_Syscall_truncate")]
2153 public static extern int truncate (string path, long length);
2154
2155 // ftruncate(2)
2156 // int ftruncate(int fd, off_t length);
2157 [DllImport (MPH, SetLastError=true,
2158 EntryPoint="Mono_Posix_Syscall_ftruncate")]
2159 public static extern int ftruncate (int fd, long length);
2160
2161 [DllImport (LIBC, SetLastError=true)]
2162 public static extern int getdtablesize ();
2163
2164 [DllImport (LIBC, SetLastError=true)]
2165 public static extern int brk (IntPtr end_data_segment);
2166
2167 [DllImport (LIBC, SetLastError=true)]
2168 public static extern IntPtr sbrk (IntPtr increment);
2169
2170 // TODO: syscall(2)?
2171 // Probably safer to skip entirely.
2172
2173 // lockf(3)
2174 // int lockf(int fd, int cmd, off_t len);
2175 [DllImport (MPH, SetLastError=true,
2176 EntryPoint="Mono_Posix_Syscall_lockf")]
2177 public static extern int lockf (int fd, LockFlags cmd, long len);
2178
2179 [DllImport (CRYPT, SetLastError=true, EntryPoint=CRYPT)]
2180 public static extern IntPtr sys_crypt (string key, string salt);
2181
2182 public static string crypt (string key, string salt)
2183 {
2184 IntPtr r = sys_crypt (key, salt);
2185 return PosixMarshal.PtrToString (r);
2186 }
2187
2188 [DllImport (CRYPT, SetLastError=true, EntryPoint="encrypt")]
2189 private static extern void sys_encrypt ([In, Out] byte[] block, int edflag);
2190
2191 public static void encrypt (byte[] block, bool decode)
2192 {
2193 if (block.Length < 64)
2194 throw new ArgumentOutOfRangeException ("block", "Must refer to at least 64 bytes");
2195 sys_encrypt (block, decode ? 1 : 0);
2196 }
2197
2198 // swab(3)
2199 // void swab(const void *from, void *to, ssize_t n);
2200 [DllImport (MPH, SetLastError=true,
2201 EntryPoint="Mono_Posix_Syscall_swab")]
2202 public static extern void swab (IntPtr from, IntPtr to, long n);
2203
2204 public static unsafe void swab (void* from, void* to, long n)
2205 {
2206 swab ((IntPtr) from, (IntPtr) to, n);
2207 }
2208
2209 //
2210 // <utime.h>
2211 //
2212
2213 // TODO: utime(2)
2214 }
2215 }
2216
2217 // vim: noexpandtab
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