Rizin
unix-like reverse engineering framework and cli tools
unix.h
Go to the documentation of this file.
1 /* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
2  *
3  * Permission is hereby granted, free of charge, to any person obtaining a copy
4  * of this software and associated documentation files (the "Software"), to
5  * deal in the Software without restriction, including without limitation the
6  * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
7  * sell copies of the Software, and to permit persons to whom the Software is
8  * furnished to do so, subject to the following conditions:
9  *
10  * The above copyright notice and this permission notice shall be included in
11  * all copies or substantial portions of the Software.
12  *
13  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
14  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
16  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
17  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
18  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
19  * IN THE SOFTWARE.
20  */
21 
22 #ifndef UV_UNIX_H
23 #define UV_UNIX_H
24 
25 #include <sys/types.h>
26 #include <sys/stat.h>
27 #include <fcntl.h>
28 #include <dirent.h>
29 
30 #include <sys/socket.h>
31 #include <netinet/in.h>
32 #include <netinet/tcp.h>
33 #include <arpa/inet.h>
34 #include <netdb.h> /* MAXHOSTNAMELEN on Solaris */
35 
36 #include <termios.h>
37 #include <pwd.h>
38 
39 #if !defined(__MVS__)
40 #include <semaphore.h>
41 #include <sys/param.h> /* MAXHOSTNAMELEN on Linux and the BSDs */
42 #endif
43 #include <pthread.h>
44 #include <signal.h>
45 
46 #include "uv/threadpool.h"
47 
48 #if defined(__linux__)
49 # include "uv/linux.h"
50 #elif defined (__MVS__)
51 # include "uv/os390.h"
52 #elif defined(__PASE__) /* __PASE__ and _AIX are both defined on IBM i */
53 # include "uv/posix.h" /* IBM i needs uv/posix.h, not uv/aix.h */
54 #elif defined(_AIX)
55 # include "uv/aix.h"
56 #elif defined(__sun)
57 # include "uv/sunos.h"
58 #elif defined(__APPLE__)
59 # include "uv/darwin.h"
60 #elif defined(__DragonFly__) || \
61  defined(__FreeBSD__) || \
62  defined(__FreeBSD_kernel__) || \
63  defined(__OpenBSD__) || \
64  defined(__NetBSD__)
65 # include "uv/bsd.h"
66 #elif defined(__CYGWIN__) || \
67  defined(__MSYS__) || \
68  defined(__GNU__)
69 # include "uv/posix.h"
70 #elif defined(__HAIKU__)
71 # include "uv/posix.h"
72 #elif defined(__QNX__)
73 # include "uv/posix.h"
74 #endif
75 
76 #ifndef NI_MAXHOST
77 # define NI_MAXHOST 1025
78 #endif
79 
80 #ifndef NI_MAXSERV
81 # define NI_MAXSERV 32
82 #endif
83 
84 #ifndef UV_IO_PRIVATE_PLATFORM_FIELDS
85 # define UV_IO_PRIVATE_PLATFORM_FIELDS /* empty */
86 #endif
87 
88 struct uv__io_s;
89 struct uv_loop_s;
90 
91 typedef void (*uv__io_cb)(struct uv_loop_s* loop,
92  struct uv__io_s* w,
93  unsigned int events);
94 typedef struct uv__io_s uv__io_t;
95 
96 struct uv__io_s {
97  uv__io_cb cb;
98  void* pending_queue[2];
99  void* watcher_queue[2];
100  unsigned int pevents; /* Pending event mask i.e. mask at next tick. */
101  unsigned int events; /* Current event mask. */
102  int fd;
103  UV_IO_PRIVATE_PLATFORM_FIELDS
104 };
105 
106 #ifndef UV_PLATFORM_SEM_T
107 # define UV_PLATFORM_SEM_T sem_t
108 #endif
109 
110 #ifndef UV_PLATFORM_LOOP_FIELDS
111 # define UV_PLATFORM_LOOP_FIELDS /* empty */
112 #endif
113 
114 #ifndef UV_PLATFORM_FS_EVENT_FIELDS
115 # define UV_PLATFORM_FS_EVENT_FIELDS /* empty */
116 #endif
117 
118 #ifndef UV_STREAM_PRIVATE_PLATFORM_FIELDS
119 # define UV_STREAM_PRIVATE_PLATFORM_FIELDS /* empty */
120 #endif
121 
122 /* Note: May be cast to struct iovec. See writev(2). */
123 typedef struct uv_buf_t {
124  char* base;
125  size_t len;
126 } uv_buf_t;
127 
128 typedef int uv_file;
129 typedef int uv_os_sock_t;
130 typedef int uv_os_fd_t;
131 typedef pid_t uv_pid_t;
132 
133 #define UV_ONCE_INIT PTHREAD_ONCE_INIT
134 
135 typedef pthread_once_t uv_once_t;
136 typedef pthread_t uv_thread_t;
137 typedef pthread_mutex_t uv_mutex_t;
138 typedef pthread_rwlock_t uv_rwlock_t;
139 typedef UV_PLATFORM_SEM_T uv_sem_t;
140 typedef pthread_cond_t uv_cond_t;
141 typedef pthread_key_t uv_key_t;
142 
143 /* Note: guard clauses should match uv_barrier_init's in src/unix/thread.c. */
144 #if defined(_AIX) || \
145  defined(__OpenBSD__) || \
146  !defined(PTHREAD_BARRIER_SERIAL_THREAD)
147 /* TODO(bnoordhuis) Merge into uv_barrier_t in v2. */
148 struct _uv_barrier {
149  uv_mutex_t mutex;
150  uv_cond_t cond;
151  unsigned threshold;
152  unsigned in;
153  unsigned out;
154 };
155 
156 typedef struct {
157  struct _uv_barrier* b;
158 # if defined(PTHREAD_BARRIER_SERIAL_THREAD)
159  /* TODO(bnoordhuis) Remove padding in v2. */
160  char pad[sizeof(pthread_barrier_t) - sizeof(struct _uv_barrier*)];
161 # endif
162 } uv_barrier_t;
163 #else
164 typedef pthread_barrier_t uv_barrier_t;
165 #endif
166 
167 /* Platform-specific definitions for uv_spawn support. */
168 typedef gid_t uv_gid_t;
169 typedef uid_t uv_uid_t;
170 
171 typedef struct dirent uv__dirent_t;
172 
173 #define UV_DIR_PRIVATE_FIELDS \
174  DIR* dir;
175 
176 #if defined(DT_UNKNOWN)
177 # define HAVE_DIRENT_TYPES
178 # if defined(DT_REG)
179 # define UV__DT_FILE DT_REG
180 # else
181 # define UV__DT_FILE -1
182 # endif
183 # if defined(DT_DIR)
184 # define UV__DT_DIR DT_DIR
185 # else
186 # define UV__DT_DIR -2
187 # endif
188 # if defined(DT_LNK)
189 # define UV__DT_LINK DT_LNK
190 # else
191 # define UV__DT_LINK -3
192 # endif
193 # if defined(DT_FIFO)
194 # define UV__DT_FIFO DT_FIFO
195 # else
196 # define UV__DT_FIFO -4
197 # endif
198 # if defined(DT_SOCK)
199 # define UV__DT_SOCKET DT_SOCK
200 # else
201 # define UV__DT_SOCKET -5
202 # endif
203 # if defined(DT_CHR)
204 # define UV__DT_CHAR DT_CHR
205 # else
206 # define UV__DT_CHAR -6
207 # endif
208 # if defined(DT_BLK)
209 # define UV__DT_BLOCK DT_BLK
210 # else
211 # define UV__DT_BLOCK -7
212 # endif
213 #endif
214 
215 /* Platform-specific definitions for uv_dlopen support. */
216 #define UV_DYNAMIC /* empty */
217 
218 typedef struct {
219  void* handle;
220  char* errmsg;
221 } uv_lib_t;
222 
223 #define UV_LOOP_PRIVATE_FIELDS \
224  unsigned long flags; \
225  int backend_fd; \
226  void* pending_queue[2]; \
227  void* watcher_queue[2]; \
228  uv__io_t** watchers; \
229  unsigned int nwatchers; \
230  unsigned int nfds; \
231  void* wq[2]; \
232  uv_mutex_t wq_mutex; \
233  uv_async_t wq_async; \
234  uv_rwlock_t cloexec_lock; \
235  uv_handle_t* closing_handles; \
236  void* process_handles[2]; \
237  void* prepare_handles[2]; \
238  void* check_handles[2]; \
239  void* idle_handles[2]; \
240  void* async_handles[2]; \
241  void (*async_unused)(void); /* TODO(bnoordhuis) Remove in libuv v2. */ \
242  uv__io_t async_io_watcher; \
243  int async_wfd; \
244  struct { \
245  void* min; \
246  unsigned int nelts; \
247  } timer_heap; \
248  uint64_t timer_counter; \
249  uint64_t time; \
250  int signal_pipefd[2]; \
251  uv__io_t signal_io_watcher; \
252  uv_signal_t child_watcher; \
253  int emfile_fd; \
254  UV_PLATFORM_LOOP_FIELDS \
255 
256 #define UV_REQ_TYPE_PRIVATE /* empty */
257 
258 #define UV_REQ_PRIVATE_FIELDS /* empty */
259 
260 #define UV_PRIVATE_REQ_TYPES /* empty */
261 
262 #define UV_WRITE_PRIVATE_FIELDS \
263  void* queue[2]; \
264  unsigned int write_index; \
265  uv_buf_t* bufs; \
266  unsigned int nbufs; \
267  int error; \
268  uv_buf_t bufsml[4]; \
269 
270 #define UV_CONNECT_PRIVATE_FIELDS \
271  void* queue[2]; \
272 
273 #define UV_SHUTDOWN_PRIVATE_FIELDS /* empty */
274 
275 #define UV_UDP_SEND_PRIVATE_FIELDS \
276  void* queue[2]; \
277  struct sockaddr_storage addr; \
278  unsigned int nbufs; \
279  uv_buf_t* bufs; \
280  ssize_t status; \
281  uv_udp_send_cb send_cb; \
282  uv_buf_t bufsml[4]; \
283 
284 #define UV_HANDLE_PRIVATE_FIELDS \
285  uv_handle_t* next_closing; \
286  unsigned int flags; \
287 
288 #define UV_STREAM_PRIVATE_FIELDS \
289  uv_connect_t *connect_req; \
290  uv_shutdown_t *shutdown_req; \
291  uv__io_t io_watcher; \
292  void* write_queue[2]; \
293  void* write_completed_queue[2]; \
294  uv_connection_cb connection_cb; \
295  int delayed_error; \
296  int accepted_fd; \
297  void* queued_fds; \
298  UV_STREAM_PRIVATE_PLATFORM_FIELDS \
299 
300 #define UV_TCP_PRIVATE_FIELDS /* empty */
301 
302 #define UV_UDP_PRIVATE_FIELDS \
303  uv_alloc_cb alloc_cb; \
304  uv_udp_recv_cb recv_cb; \
305  uv__io_t io_watcher; \
306  void* write_queue[2]; \
307  void* write_completed_queue[2]; \
308 
309 #define UV_PIPE_PRIVATE_FIELDS \
310  const char* pipe_fname; /* strdup'ed */
311 
312 #define UV_POLL_PRIVATE_FIELDS \
313  uv__io_t io_watcher;
314 
315 #define UV_PREPARE_PRIVATE_FIELDS \
316  uv_prepare_cb prepare_cb; \
317  void* queue[2]; \
318 
319 #define UV_CHECK_PRIVATE_FIELDS \
320  uv_check_cb check_cb; \
321  void* queue[2]; \
322 
323 #define UV_IDLE_PRIVATE_FIELDS \
324  uv_idle_cb idle_cb; \
325  void* queue[2]; \
326 
327 #define UV_ASYNC_PRIVATE_FIELDS \
328  uv_async_cb async_cb; \
329  void* queue[2]; \
330  int pending; \
331 
332 #define UV_TIMER_PRIVATE_FIELDS \
333  uv_timer_cb timer_cb; \
334  void* heap_node[3]; \
335  uint64_t timeout; \
336  uint64_t repeat; \
337  uint64_t start_id;
338 
339 #define UV_GETADDRINFO_PRIVATE_FIELDS \
340  struct uv__work work_req; \
341  uv_getaddrinfo_cb cb; \
342  struct addrinfo* hints; \
343  char* hostname; \
344  char* service; \
345  struct addrinfo* addrinfo; \
346  int retcode;
347 
348 #define UV_GETNAMEINFO_PRIVATE_FIELDS \
349  struct uv__work work_req; \
350  uv_getnameinfo_cb getnameinfo_cb; \
351  struct sockaddr_storage storage; \
352  int flags; \
353  char host[NI_MAXHOST]; \
354  char service[NI_MAXSERV]; \
355  int retcode;
356 
357 #define UV_PROCESS_PRIVATE_FIELDS \
358  void* queue[2]; \
359  int status; \
360 
361 #define UV_FS_PRIVATE_FIELDS \
362  const char *new_path; \
363  uv_file file; \
364  int flags; \
365  mode_t mode; \
366  unsigned int nbufs; \
367  uv_buf_t* bufs; \
368  off_t off; \
369  uv_uid_t uid; \
370  uv_gid_t gid; \
371  double atime; \
372  double mtime; \
373  struct uv__work work_req; \
374  uv_buf_t bufsml[4]; \
375 
376 #define UV_WORK_PRIVATE_FIELDS \
377  struct uv__work work_req;
378 
379 #define UV_TTY_PRIVATE_FIELDS \
380  struct termios orig_termios; \
381  int mode;
382 
383 #define UV_SIGNAL_PRIVATE_FIELDS \
384  /* RB_ENTRY(uv_signal_s) tree_entry; */ \
385  struct { \
386  struct uv_signal_s* rbe_left; \
387  struct uv_signal_s* rbe_right; \
388  struct uv_signal_s* rbe_parent; \
389  int rbe_color; \
390  } tree_entry; \
391  /* Use two counters here so we don have to fiddle with atomics. */ \
392  unsigned int caught_signals; \
393  unsigned int dispatched_signals;
394 
395 #define UV_FS_EVENT_PRIVATE_FIELDS \
396  uv_fs_event_cb cb; \
397  UV_PLATFORM_FS_EVENT_FIELDS \
398 
399 /* fs open() flags supported on this platform: */
400 #if defined(O_APPEND)
401 # define UV_FS_O_APPEND O_APPEND
402 #else
403 # define UV_FS_O_APPEND 0
404 #endif
405 #if defined(O_CREAT)
406 # define UV_FS_O_CREAT O_CREAT
407 #else
408 # define UV_FS_O_CREAT 0
409 #endif
410 
411 #if defined(__linux__) && defined(__arm__)
412 # define UV_FS_O_DIRECT 0x10000
413 #elif defined(__linux__) && defined(__m68k__)
414 # define UV_FS_O_DIRECT 0x10000
415 #elif defined(__linux__) && defined(__mips__)
416 # define UV_FS_O_DIRECT 0x08000
417 #elif defined(__linux__) && defined(__powerpc__)
418 # define UV_FS_O_DIRECT 0x20000
419 #elif defined(__linux__) && defined(__s390x__)
420 # define UV_FS_O_DIRECT 0x04000
421 #elif defined(__linux__) && defined(__x86_64__)
422 # define UV_FS_O_DIRECT 0x04000
423 #elif defined(O_DIRECT)
424 # define UV_FS_O_DIRECT O_DIRECT
425 #else
426 # define UV_FS_O_DIRECT 0
427 #endif
428 
429 #if defined(O_DIRECTORY)
430 # define UV_FS_O_DIRECTORY O_DIRECTORY
431 #else
432 # define UV_FS_O_DIRECTORY 0
433 #endif
434 #if defined(O_DSYNC)
435 # define UV_FS_O_DSYNC O_DSYNC
436 #else
437 # define UV_FS_O_DSYNC 0
438 #endif
439 #if defined(O_EXCL)
440 # define UV_FS_O_EXCL O_EXCL
441 #else
442 # define UV_FS_O_EXCL 0
443 #endif
444 #if defined(O_EXLOCK)
445 # define UV_FS_O_EXLOCK O_EXLOCK
446 #else
447 # define UV_FS_O_EXLOCK 0
448 #endif
449 #if defined(O_NOATIME)
450 # define UV_FS_O_NOATIME O_NOATIME
451 #else
452 # define UV_FS_O_NOATIME 0
453 #endif
454 #if defined(O_NOCTTY)
455 # define UV_FS_O_NOCTTY O_NOCTTY
456 #else
457 # define UV_FS_O_NOCTTY 0
458 #endif
459 #if defined(O_NOFOLLOW)
460 # define UV_FS_O_NOFOLLOW O_NOFOLLOW
461 #else
462 # define UV_FS_O_NOFOLLOW 0
463 #endif
464 #if defined(O_NONBLOCK)
465 # define UV_FS_O_NONBLOCK O_NONBLOCK
466 #else
467 # define UV_FS_O_NONBLOCK 0
468 #endif
469 #if defined(O_RDONLY)
470 # define UV_FS_O_RDONLY O_RDONLY
471 #else
472 # define UV_FS_O_RDONLY 0
473 #endif
474 #if defined(O_RDWR)
475 # define UV_FS_O_RDWR O_RDWR
476 #else
477 # define UV_FS_O_RDWR 0
478 #endif
479 #if defined(O_SYMLINK)
480 # define UV_FS_O_SYMLINK O_SYMLINK
481 #else
482 # define UV_FS_O_SYMLINK 0
483 #endif
484 #if defined(O_SYNC)
485 # define UV_FS_O_SYNC O_SYNC
486 #else
487 # define UV_FS_O_SYNC 0
488 #endif
489 #if defined(O_TRUNC)
490 # define UV_FS_O_TRUNC O_TRUNC
491 #else
492 # define UV_FS_O_TRUNC 0
493 #endif
494 #if defined(O_WRONLY)
495 # define UV_FS_O_WRONLY O_WRONLY
496 #else
497 # define UV_FS_O_WRONLY 0
498 #endif
499 
500 /* fs open() flags supported on other platforms: */
501 #define UV_FS_O_FILEMAP 0
502 #define UV_FS_O_RANDOM 0
503 #define UV_FS_O_SHORT_LIVED 0
504 #define UV_FS_O_SEQUENTIAL 0
505 #define UV_FS_O_TEMPORARY 0
506 
507 #endif /* UV_UNIX_H */
w
#define w
Definition: crypto_rc6.c:13
pad
static void pad(RzStrBuf *sb, ut32 count)
Definition: protobuf.c:36
uid_t
int uid_t
Definition: sftypes.h:44
gid_t
int gid_t
Definition: sftypes.h:45
pid_t
int pid_t
Definition: sftypes.h:38
_uv_barrier
Definition: unix.h:148
_uv_barrier::out
unsigned out
Definition: unix.h:153
_uv_barrier::threshold
unsigned threshold
Definition: unix.h:151
_uv_barrier::mutex
uv_mutex_t mutex
Definition: unix.h:149
_uv_barrier::cond
uv_cond_t cond
Definition: unix.h:150
_uv_barrier::in
unsigned in
Definition: unix.h:152
dirent
Definition: sftypes.h:48
uv__io_s
Definition: unix.h:96
uv__io_s::cb
uv__io_cb cb
Definition: unix.h:97
uv__io_s::watcher_queue
void * watcher_queue[2]
Definition: unix.h:99
uv__io_s::events
unsigned int events
Definition: unix.h:101
uv__io_s::pevents
unsigned int pevents
Definition: unix.h:100
uv__io_s::pending_queue
void * pending_queue[2]
Definition: unix.h:98
uv__io_s::fd
int fd
Definition: unix.h:102
uv_barrier_t
Definition: unix.h:156
uv_barrier_t::b
struct _uv_barrier * b
Definition: unix.h:157
uv_buf_t
Definition: unix.h:123
uv_buf_t::len
size_t len
Definition: unix.h:125
uv_buf_t::base
char * base
Definition: unix.h:124
uv_lib_t
Definition: unix.h:218
uv_lib_t::errmsg
char * errmsg
Definition: unix.h:220
uv_lib_t::handle
void * handle
Definition: unix.h:219
uv_loop_s
Definition: uv.h:1780
loop
uv_loop_t * loop
Definition: main.c:7
uv_cond_t
Definition: win.h:249
uv_cond_t
pthread_cond_t uv_cond_t
Definition: unix.h:140
uv_uid_t
uid_t uv_uid_t
Definition: unix.h:169
uv_sem_t
UV_PLATFORM_SEM_T uv_sem_t
Definition: unix.h:139
uv_buf_t
struct uv_buf_t uv_buf_t
uv_file
int uv_file
Definition: unix.h:128
uv_pid_t
pid_t uv_pid_t
Definition: unix.h:131
uv_rwlock_t
pthread_rwlock_t uv_rwlock_t
Definition: unix.h:138
uv_key_t
pthread_key_t uv_key_t
Definition: unix.h:141
UV_IO_PRIVATE_PLATFORM_FIELDS
#define UV_IO_PRIVATE_PLATFORM_FIELDS
Definition: unix.h:85
uv_mutex_t
pthread_mutex_t uv_mutex_t
Definition: unix.h:137
uv_thread_t
pthread_t uv_thread_t
Definition: unix.h:136
uv__io_cb
void(* uv__io_cb)(struct uv_loop_s *loop, struct uv__io_s *w, unsigned int events)
Definition: unix.h:91
uv_once_t
pthread_once_t uv_once_t
Definition: unix.h:135
uv_os_fd_t
int uv_os_fd_t
Definition: unix.h:130
uv_gid_t
gid_t uv_gid_t
Definition: unix.h:168
uv_os_sock_t
int uv_os_sock_t
Definition: unix.h:129
UV_PLATFORM_SEM_T
#define UV_PLATFORM_SEM_T
Definition: unix.h:107