1 //===-- sanitizer_platform_limits_posix.h ---------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // This file is a part of Sanitizer common code.
10 //
11 // Sizes and layouts of platform-specific POSIX data structures.
12 //===----------------------------------------------------------------------===//
13 
14 #ifndef SANITIZER_PLATFORM_LIMITS_POSIX_H
15 #define SANITIZER_PLATFORM_LIMITS_POSIX_H
16 
17 #if SANITIZER_LINUX || SANITIZER_MAC
18 
19 #include "sanitizer_internal_defs.h"
20 #include "sanitizer_platform.h"
21 
22 #if defined(__sparc__)
23 // FIXME: This can't be included from tsan which does not support sparc yet.
24 #include "sanitizer_glibc_version.h"
25 #endif
26 
27 # define GET_LINK_MAP_BY_DLOPEN_HANDLE(handle) ((link_map*)(handle))
28 
29 namespace __sanitizer {
30 extern unsigned struct_utsname_sz;
31 extern unsigned struct_stat_sz;
32 #if !SANITIZER_IOS
33 extern unsigned struct_stat64_sz;
34 #endif
35 extern unsigned struct_rusage_sz;
36 extern unsigned siginfo_t_sz;
37 extern unsigned struct_itimerval_sz;
38 extern unsigned pthread_t_sz;
39 extern unsigned pthread_mutex_t_sz;
40 extern unsigned pthread_cond_t_sz;
41 extern unsigned pid_t_sz;
42 extern unsigned timeval_sz;
43 extern unsigned uid_t_sz;
44 extern unsigned gid_t_sz;
45 extern unsigned mbstate_t_sz;
46 extern unsigned struct_timezone_sz;
47 extern unsigned struct_tms_sz;
48 extern unsigned struct_itimerspec_sz;
49 extern unsigned struct_sigevent_sz;
50 extern unsigned struct_sched_param_sz;
51 extern unsigned struct_statfs64_sz;
52 extern unsigned struct_regex_sz;
53 extern unsigned struct_regmatch_sz;
54 
55 #if !SANITIZER_ANDROID
56 extern unsigned struct_fstab_sz;
57 extern unsigned struct_statfs_sz;
58 extern unsigned struct_sockaddr_sz;
59 extern unsigned ucontext_t_sz;
60 #endif // !SANITIZER_ANDROID
61 
62 #if SANITIZER_LINUX
63 
64 #if defined(__x86_64__)
65 const unsigned struct_kernel_stat_sz = 144;
66 const unsigned struct_kernel_stat64_sz = 0;
67 #elif defined(__i386__)
68 const unsigned struct_kernel_stat_sz = 64;
69 const unsigned struct_kernel_stat64_sz = 96;
70 #elif defined(__arm__)
71 const unsigned struct_kernel_stat_sz = 64;
72 const unsigned struct_kernel_stat64_sz = 104;
73 #elif defined(__aarch64__)
74 const unsigned struct_kernel_stat_sz = 128;
75 const unsigned struct_kernel_stat64_sz = 104;
76 #elif defined(__powerpc__) && !defined(__powerpc64__)
77 const unsigned struct_kernel_stat_sz = 72;
78 const unsigned struct_kernel_stat64_sz = 104;
79 #elif defined(__powerpc64__)
80 const unsigned struct_kernel_stat_sz = 144;
81 const unsigned struct_kernel_stat64_sz = 104;
82 #elif defined(__riscv) && __riscv_xlen == 64
83   const unsigned struct_kernel_stat_sz = 128;
84   const unsigned struct_kernel_stat64_sz = 104;
85 #elif defined(__mips__)
86 const unsigned struct_kernel_stat_sz = SANITIZER_ANDROID
87                                            ? FIRST_32_SECOND_64(104, 128)
88                                            : FIRST_32_SECOND_64(160, 216);
89 const unsigned struct_kernel_stat64_sz = 104;
90 #elif defined(__s390__) && !defined(__s390x__)
91 const unsigned struct_kernel_stat_sz = 64;
92 const unsigned struct_kernel_stat64_sz = 104;
93 #elif defined(__s390x__)
94 const unsigned struct_kernel_stat_sz = 144;
95 const unsigned struct_kernel_stat64_sz = 0;
96 #elif defined(__sparc__) && defined(__arch64__)
97 const unsigned struct___old_kernel_stat_sz = 0;
98 const unsigned struct_kernel_stat_sz = 104;
99 const unsigned struct_kernel_stat64_sz = 144;
100 #elif defined(__sparc__) && !defined(__arch64__)
101 const unsigned struct___old_kernel_stat_sz = 0;
102 const unsigned struct_kernel_stat_sz = 64;
103 const unsigned struct_kernel_stat64_sz = 104;
104 #elif defined(__riscv) && __riscv_xlen == 64
105 const unsigned struct_kernel_stat_sz = 128;
106 const unsigned struct_kernel_stat64_sz = 104;
107 #endif
108 struct __sanitizer_perf_event_attr {
109   unsigned type;
110   unsigned size;
111   // More fields that vary with the kernel version.
112 };
113 
114 extern unsigned struct_epoll_event_sz;
115 extern unsigned struct_sysinfo_sz;
116 extern unsigned __user_cap_header_struct_sz;
117 extern unsigned __user_cap_data_struct_sz;
118 extern unsigned struct_new_utsname_sz;
119 extern unsigned struct_old_utsname_sz;
120 extern unsigned struct_oldold_utsname_sz;
121 
122 const unsigned struct_kexec_segment_sz = 4 * sizeof(unsigned long);
123 #endif  // SANITIZER_LINUX
124 
125 #if SANITIZER_LINUX
126 
127 #if defined(__powerpc64__) || defined(__riscv) || defined(__s390__)
128 const unsigned struct___old_kernel_stat_sz = 0;
129 #elif !defined(__sparc__)
130 const unsigned struct___old_kernel_stat_sz = 32;
131 #endif
132 
133 extern unsigned struct_rlimit_sz;
134 extern unsigned struct_utimbuf_sz;
135 extern unsigned struct_timespec_sz;
136 
137 struct __sanitizer_iocb {
138   u64 aio_data;
139   u32 aio_key_or_aio_reserved1;  // Simply crazy.
140   u32 aio_reserved1_or_aio_key;  // Luckily, we don't need these.
141   u16 aio_lio_opcode;
142   s16 aio_reqprio;
143   u32 aio_fildes;
144   u64 aio_buf;
145   u64 aio_nbytes;
146   s64 aio_offset;
147   u64 aio_reserved2;
148   u64 aio_reserved3;
149 };
150 
151 struct __sanitizer_io_event {
152   u64 data;
153   u64 obj;
154   u64 res;
155   u64 res2;
156 };
157 
158 const unsigned iocb_cmd_pread = 0;
159 const unsigned iocb_cmd_pwrite = 1;
160 const unsigned iocb_cmd_preadv = 7;
161 const unsigned iocb_cmd_pwritev = 8;
162 
163 struct __sanitizer___sysctl_args {
164   int *name;
165   int nlen;
166   void *oldval;
167   uptr *oldlenp;
168   void *newval;
169   uptr newlen;
170   unsigned long ___unused[4];
171 };
172 
173 const unsigned old_sigset_t_sz = sizeof(unsigned long);
174 
175 struct __sanitizer_sem_t {
176 #if SANITIZER_ANDROID && defined(_LP64)
177   int data[4];
178 #elif SANITIZER_ANDROID && !defined(_LP64)
179   int data;
180 #elif SANITIZER_LINUX
181   uptr data[4];
182 #endif
183 };
184 #endif // SANITIZER_LINUX
185 
186 #if SANITIZER_ANDROID
187 struct __sanitizer_struct_mallinfo {
188   uptr v[10];
189 };
190 #endif
191 
192 #if SANITIZER_LINUX && !SANITIZER_ANDROID
193 struct __sanitizer_struct_mallinfo {
194   int v[10];
195 };
196 
197 extern unsigned struct_ustat_sz;
198 extern unsigned struct_rlimit64_sz;
199 extern unsigned struct_statvfs64_sz;
200 
201 struct __sanitizer_ipc_perm {
202   int __key;
203   int uid;
204   int gid;
205   int cuid;
206   int cgid;
207 #ifdef __powerpc__
208   unsigned mode;
209   unsigned __seq;
210   u64 __unused1;
211   u64 __unused2;
212 #elif defined(__sparc__)
213   unsigned mode;
214   unsigned short __pad2;
215   unsigned short __seq;
216   unsigned long long __unused1;
217   unsigned long long __unused2;
218 #else
219   unsigned int mode;
220   unsigned short __seq;
221   unsigned short __pad2;
222 #if defined(__x86_64__) && !defined(_LP64)
223   u64 __unused1;
224   u64 __unused2;
225 #else
226   unsigned long __unused1;
227   unsigned long __unused2;
228 #endif
229 #endif
230 };
231 
232 struct __sanitizer_shmid_ds {
233   __sanitizer_ipc_perm shm_perm;
234 #if defined(__sparc__)
235 #if !defined(__arch64__)
236   u32 __pad1;
237 #endif
238   long shm_atime;
239 #if !defined(__arch64__)
240   u32 __pad2;
241 #endif
242   long shm_dtime;
243 #if !defined(__arch64__)
244   u32 __pad3;
245 #endif
246   long shm_ctime;
247   uptr shm_segsz;
248   int shm_cpid;
249   int shm_lpid;
250   unsigned long shm_nattch;
251   unsigned long __glibc_reserved1;
252   unsigned long __glibc_reserved2;
253 #else
254 #ifndef __powerpc__
255   uptr shm_segsz;
256 #elif !defined(__powerpc64__)
257   uptr __unused0;
258 #endif
259 #if defined(__x86_64__) && !defined(_LP64)
260   u64 shm_atime;
261   u64 shm_dtime;
262   u64 shm_ctime;
263 #else
264   uptr shm_atime;
265 #if !defined(_LP64) && !defined(__mips__)
266   uptr __unused1;
267 #endif
268   uptr shm_dtime;
269 #if !defined(_LP64) && !defined(__mips__)
270   uptr __unused2;
271 #endif
272   uptr shm_ctime;
273 #if !defined(_LP64) && !defined(__mips__)
274   uptr __unused3;
275 #endif
276 #endif
277 #ifdef __powerpc__
278   uptr shm_segsz;
279 #endif
280   int shm_cpid;
281   int shm_lpid;
282 #if defined(__x86_64__) && !defined(_LP64)
283   u64 shm_nattch;
284   u64 __unused4;
285   u64 __unused5;
286 #else
287   uptr shm_nattch;
288   uptr __unused4;
289   uptr __unused5;
290 #endif
291 #endif
292 };
293 #endif
294 
295 #if SANITIZER_LINUX && !SANITIZER_ANDROID
296 extern unsigned struct_msqid_ds_sz;
297 extern unsigned struct_mq_attr_sz;
298 extern unsigned struct_timex_sz;
299 extern unsigned struct_statvfs_sz;
300 extern unsigned struct_crypt_data_sz;
301 #endif  // SANITIZER_LINUX && !SANITIZER_ANDROID
302 
303 struct __sanitizer_iovec {
304   void *iov_base;
305   uptr iov_len;
306 };
307 
308 #if !SANITIZER_ANDROID
309 struct __sanitizer_ifaddrs {
310   struct __sanitizer_ifaddrs *ifa_next;
311   char *ifa_name;
312   unsigned int ifa_flags;
313   void *ifa_addr;     // (struct sockaddr *)
314   void *ifa_netmask;  // (struct sockaddr *)
315   // This is a union on Linux.
316 # ifdef ifa_dstaddr
317 # undef ifa_dstaddr
318 # endif
319   void *ifa_dstaddr;  // (struct sockaddr *)
320   void *ifa_data;
321 };
322 #endif  // !SANITIZER_ANDROID
323 
324 #if SANITIZER_MAC
325 typedef unsigned long __sanitizer_pthread_key_t;
326 #else
327 typedef unsigned __sanitizer_pthread_key_t;
328 #endif
329 
330 #if SANITIZER_LINUX && !SANITIZER_ANDROID
331 
332 struct __sanitizer_XDR {
333   int x_op;
334   void *x_ops;
335   uptr x_public;
336   uptr x_private;
337   uptr x_base;
338   unsigned x_handy;
339 };
340 
341 const int __sanitizer_XDR_ENCODE = 0;
342 const int __sanitizer_XDR_DECODE = 1;
343 const int __sanitizer_XDR_FREE = 2;
344 #endif
345 
346 struct __sanitizer_passwd {
347   char *pw_name;
348   char *pw_passwd;
349   int pw_uid;
350   int pw_gid;
351 #if SANITIZER_MAC
352   long pw_change;
353   char *pw_class;
354 #endif
355 #if !(SANITIZER_ANDROID && (SANITIZER_WORDSIZE == 32))
356   char *pw_gecos;
357 #endif
358   char *pw_dir;
359   char *pw_shell;
360 #if SANITIZER_MAC
361   long pw_expire;
362 #endif
363 };
364 
365 struct __sanitizer_group {
366   char *gr_name;
367   char *gr_passwd;
368   int gr_gid;
369   char **gr_mem;
370 };
371 
372 #if defined(__x86_64__) && !defined(_LP64)
373 typedef long long __sanitizer_time_t;
374 #else
375 typedef long __sanitizer_time_t;
376 #endif
377 
378 typedef long __sanitizer_suseconds_t;
379 
380 struct __sanitizer_timeval {
381   __sanitizer_time_t tv_sec;
382   __sanitizer_suseconds_t tv_usec;
383 };
384 
385 struct __sanitizer_itimerval {
386   struct __sanitizer_timeval it_interval;
387   struct __sanitizer_timeval it_value;
388 };
389 
390 struct __sanitizer_timeb {
391   __sanitizer_time_t time;
392   unsigned short millitm;
393   short timezone;
394   short dstflag;
395 };
396 
397 struct __sanitizer_ether_addr {
398   u8 octet[6];
399 };
400 
401 struct __sanitizer_tm {
402   int tm_sec;
403   int tm_min;
404   int tm_hour;
405   int tm_mday;
406   int tm_mon;
407   int tm_year;
408   int tm_wday;
409   int tm_yday;
410   int tm_isdst;
411   long int tm_gmtoff;
412   const char *tm_zone;
413 };
414 
415 #if SANITIZER_LINUX
416 struct __sanitizer_mntent {
417   char *mnt_fsname;
418   char *mnt_dir;
419   char *mnt_type;
420   char *mnt_opts;
421   int mnt_freq;
422   int mnt_passno;
423 };
424 
425 struct __sanitizer_file_handle {
426   unsigned int handle_bytes;
427   int handle_type;
428   unsigned char f_handle[1];  // variable sized
429 };
430 #endif
431 
432 #if SANITIZER_MAC
433 struct __sanitizer_msghdr {
434   void *msg_name;
435   unsigned msg_namelen;
436   struct __sanitizer_iovec *msg_iov;
437   unsigned msg_iovlen;
438   void *msg_control;
439   unsigned msg_controllen;
440   int msg_flags;
441 };
442 struct __sanitizer_cmsghdr {
443   unsigned cmsg_len;
444   int cmsg_level;
445   int cmsg_type;
446 };
447 #else
448 struct __sanitizer_msghdr {
449   void *msg_name;
450   unsigned msg_namelen;
451   struct __sanitizer_iovec *msg_iov;
452   uptr msg_iovlen;
453   void *msg_control;
454   uptr msg_controllen;
455   int msg_flags;
456 };
457 struct __sanitizer_cmsghdr {
458   uptr cmsg_len;
459   int cmsg_level;
460   int cmsg_type;
461 };
462 #endif
463 
464 #if SANITIZER_LINUX
465 struct __sanitizer_mmsghdr {
466   __sanitizer_msghdr msg_hdr;
467   unsigned int msg_len;
468 };
469 #endif
470 
471 #if SANITIZER_MAC
472 struct __sanitizer_dirent {
473   unsigned long long d_ino;
474   unsigned long long d_seekoff;
475   unsigned short d_reclen;
476   // more fields that we don't care about
477 };
478 #elif SANITIZER_ANDROID || defined(__x86_64__)
479 struct __sanitizer_dirent {
480   unsigned long long d_ino;
481   unsigned long long d_off;
482   unsigned short d_reclen;
483   // more fields that we don't care about
484 };
485 #else
486 struct __sanitizer_dirent {
487   uptr d_ino;
488   uptr d_off;
489   unsigned short d_reclen;
490   // more fields that we don't care about
491 };
492 #endif
493 
494 #if SANITIZER_LINUX && !SANITIZER_ANDROID
495 struct __sanitizer_dirent64 {
496   unsigned long long d_ino;
497   unsigned long long d_off;
498   unsigned short d_reclen;
499   // more fields that we don't care about
500 };
501 #endif
502 
503 #if defined(__x86_64__) && !defined(_LP64)
504 typedef long long __sanitizer_clock_t;
505 #else
506 typedef long __sanitizer_clock_t;
507 #endif
508 
509 #if SANITIZER_LINUX
510 typedef int __sanitizer_clockid_t;
511 #endif
512 
513 #if SANITIZER_LINUX
514 #if defined(_LP64) || defined(__x86_64__) || defined(__powerpc__) || \
515     defined(__mips__)
516 typedef unsigned __sanitizer___kernel_uid_t;
517 typedef unsigned __sanitizer___kernel_gid_t;
518 #else
519 typedef unsigned short __sanitizer___kernel_uid_t;
520 typedef unsigned short __sanitizer___kernel_gid_t;
521 #endif
522 #if defined(__x86_64__) && !defined(_LP64)
523 typedef long long __sanitizer___kernel_off_t;
524 #else
525 typedef long __sanitizer___kernel_off_t;
526 #endif
527 
528 #if defined(__powerpc__) || defined(__mips__) || defined(__riscv)
529 typedef unsigned int __sanitizer___kernel_old_uid_t;
530 typedef unsigned int __sanitizer___kernel_old_gid_t;
531 #else
532 typedef unsigned short __sanitizer___kernel_old_uid_t;
533 typedef unsigned short __sanitizer___kernel_old_gid_t;
534 #endif
535 
536 typedef long long __sanitizer___kernel_loff_t;
537 typedef struct {
538   unsigned long fds_bits[1024 / (8 * sizeof(long))];
539 } __sanitizer___kernel_fd_set;
540 #endif
541 
542 // This thing depends on the platform. We are only interested in the upper
543 // limit. Verified with a compiler assert in .cpp.
544 union __sanitizer_pthread_attr_t {
545   char size[128];
546   void *align;
547 };
548 
549 #if SANITIZER_ANDROID
550 # if SANITIZER_MIPS
551 typedef unsigned long __sanitizer_sigset_t[16 / sizeof(unsigned long)];
552 # else
553 typedef unsigned long __sanitizer_sigset_t;
554 # endif
555 #elif SANITIZER_MAC
556 typedef unsigned __sanitizer_sigset_t;
557 #elif SANITIZER_LINUX
558 struct __sanitizer_sigset_t {
559   // The size is determined by looking at sizeof of real sigset_t on linux.
560   uptr val[128 / sizeof(uptr)];
561 };
562 #endif
563 
564 struct __sanitizer_siginfo {
565   // The size is determined by looking at sizeof of real siginfo_t on linux.
566   u64 opaque[128 / sizeof(u64)];
567 };
568 
569 using __sanitizer_sighandler_ptr = void (*)(int sig);
570 using __sanitizer_sigactionhandler_ptr = void (*)(int sig,
571                                                   __sanitizer_siginfo *siginfo,
572                                                   void *uctx);
573 
574 // Linux system headers define the 'sa_handler' and 'sa_sigaction' macros.
575 #if SANITIZER_ANDROID && (SANITIZER_WORDSIZE == 64)
576 struct __sanitizer_sigaction {
577   unsigned sa_flags;
578   union {
579     __sanitizer_sigactionhandler_ptr sigaction;
580     __sanitizer_sighandler_ptr handler;
581   };
582   __sanitizer_sigset_t sa_mask;
583   void (*sa_restorer)();
584 };
585 #elif SANITIZER_ANDROID && SANITIZER_MIPS32  // check this before WORDSIZE == 32
586 struct __sanitizer_sigaction {
587   unsigned sa_flags;
588   union {
589     __sanitizer_sigactionhandler_ptr sigaction;
590     __sanitizer_sighandler_ptr handler;
591   };
592   __sanitizer_sigset_t sa_mask;
593 };
594 #elif SANITIZER_ANDROID && (SANITIZER_WORDSIZE == 32)
595 struct __sanitizer_sigaction {
596   union {
597     __sanitizer_sigactionhandler_ptr sigaction;
598     __sanitizer_sighandler_ptr handler;
599   };
600   __sanitizer_sigset_t sa_mask;
601   uptr sa_flags;
602   void (*sa_restorer)();
603 };
604 #else // !SANITIZER_ANDROID
605 struct __sanitizer_sigaction {
606 #if defined(__mips__) && !SANITIZER_FREEBSD
607   unsigned int sa_flags;
608 #endif
609   union {
610     __sanitizer_sigactionhandler_ptr sigaction;
611     __sanitizer_sighandler_ptr handler;
612   };
613 #if SANITIZER_FREEBSD
614   int sa_flags;
615   __sanitizer_sigset_t sa_mask;
616 #else
617 #if defined(__s390x__)
618   int sa_resv;
619 #else
620   __sanitizer_sigset_t sa_mask;
621 #endif
622 #ifndef __mips__
623 #if defined(__sparc__)
624 #if __GLIBC_PREREQ (2, 20)
625   // On sparc glibc 2.19 and earlier sa_flags was unsigned long.
626 #if defined(__arch64__)
627   // To maintain ABI compatibility on sparc64 when switching to an int,
628   // __glibc_reserved0 was added.
629   int __glibc_reserved0;
630 #endif
631   int sa_flags;
632 #else
633   unsigned long sa_flags;
634 #endif
635 #else
636   int sa_flags;
637 #endif
638 #endif
639 #endif
640 #if SANITIZER_LINUX
641   void (*sa_restorer)();
642 #endif
643 #if defined(__mips__) && (SANITIZER_WORDSIZE == 32)
644   int sa_resv[1];
645 #endif
646 #if defined(__s390x__)
647   __sanitizer_sigset_t sa_mask;
648 #endif
649 };
650 #endif // !SANITIZER_ANDROID
651 
652 #if defined(__mips__)
653 struct __sanitizer_kernel_sigset_t {
654   uptr sig[2];
655 };
656 #else
657 struct __sanitizer_kernel_sigset_t {
658   u8 sig[8];
659 };
660 #endif
661 
662 // Linux system headers define the 'sa_handler' and 'sa_sigaction' macros.
663 #if SANITIZER_MIPS
664 struct __sanitizer_kernel_sigaction_t {
665   unsigned int sa_flags;
666   union {
667     void (*handler)(int signo);
668     void (*sigaction)(int signo, __sanitizer_siginfo *info, void *ctx);
669   };
670   __sanitizer_kernel_sigset_t sa_mask;
671   void (*sa_restorer)(void);
672 };
673 #else
674 struct __sanitizer_kernel_sigaction_t {
675   union {
676     void (*handler)(int signo);
677     void (*sigaction)(int signo, __sanitizer_siginfo *info, void *ctx);
678   };
679   unsigned long sa_flags;
680   void (*sa_restorer)(void);
681   __sanitizer_kernel_sigset_t sa_mask;
682 };
683 #endif
684 
685 extern const uptr sig_ign;
686 extern const uptr sig_dfl;
687 extern const uptr sig_err;
688 extern const uptr sa_siginfo;
689 
690 #if SANITIZER_LINUX
691 extern int e_tabsz;
692 #endif
693 
694 extern int af_inet;
695 extern int af_inet6;
696 uptr __sanitizer_in_addr_sz(int af);
697 
698 #if SANITIZER_LINUX
699 struct __sanitizer_dl_phdr_info {
700   uptr dlpi_addr;
701   const char *dlpi_name;
702   const void *dlpi_phdr;
703   short dlpi_phnum;
704 };
705 
706 extern unsigned struct_ElfW_Phdr_sz;
707 #endif
708 
709 struct __sanitizer_addrinfo {
710   int ai_flags;
711   int ai_family;
712   int ai_socktype;
713   int ai_protocol;
714 #if SANITIZER_ANDROID || SANITIZER_MAC
715   unsigned ai_addrlen;
716   char *ai_canonname;
717   void *ai_addr;
718 #else // LINUX
719   unsigned ai_addrlen;
720   void *ai_addr;
721   char *ai_canonname;
722 #endif
723   struct __sanitizer_addrinfo *ai_next;
724 };
725 
726 struct __sanitizer_hostent {
727   char *h_name;
728   char **h_aliases;
729   int h_addrtype;
730   int h_length;
731   char **h_addr_list;
732 };
733 
734 struct __sanitizer_pollfd {
735   int fd;
736   short events;
737   short revents;
738 };
739 
740 #if SANITIZER_ANDROID || SANITIZER_MAC
741 typedef unsigned __sanitizer_nfds_t;
742 #else
743 typedef unsigned long __sanitizer_nfds_t;
744 #endif
745 
746 #if !SANITIZER_ANDROID
747 # if SANITIZER_LINUX
748 struct __sanitizer_glob_t {
749   uptr gl_pathc;
750   char **gl_pathv;
751   uptr gl_offs;
752   int gl_flags;
753 
754   void (*gl_closedir)(void *dirp);
755   void *(*gl_readdir)(void *dirp);
756   void *(*gl_opendir)(const char *);
757   int (*gl_lstat)(const char *, void *);
758   int (*gl_stat)(const char *, void *);
759 };
760 # endif  // SANITIZER_LINUX
761 
762 # if SANITIZER_LINUX
763 extern int glob_nomatch;
764 extern int glob_altdirfunc;
765 # endif
766 #endif  // !SANITIZER_ANDROID
767 
768 extern unsigned path_max;
769 
770 struct __sanitizer_wordexp_t {
771   uptr we_wordc;
772   char **we_wordv;
773   uptr we_offs;
774 };
775 
776 #if SANITIZER_LINUX && !SANITIZER_ANDROID
777 struct __sanitizer_FILE {
778   int _flags;
779   char *_IO_read_ptr;
780   char *_IO_read_end;
781   char *_IO_read_base;
782   char *_IO_write_base;
783   char *_IO_write_ptr;
784   char *_IO_write_end;
785   char *_IO_buf_base;
786   char *_IO_buf_end;
787   char *_IO_save_base;
788   char *_IO_backup_base;
789   char *_IO_save_end;
790   void *_markers;
791   __sanitizer_FILE *_chain;
792   int _fileno;
793 };
794 # define SANITIZER_HAS_STRUCT_FILE 1
795 #else
796 typedef void __sanitizer_FILE;
797 # define SANITIZER_HAS_STRUCT_FILE 0
798 #endif
799 
800 #if SANITIZER_LINUX && !SANITIZER_ANDROID &&                               \
801     (defined(__i386) || defined(__x86_64) || defined(__mips64) ||          \
802      defined(__powerpc64__) || defined(__aarch64__) || defined(__arm__) || \
803      defined(__s390__))
804 extern unsigned struct_user_regs_struct_sz;
805 extern unsigned struct_user_fpregs_struct_sz;
806 extern unsigned struct_user_fpxregs_struct_sz;
807 extern unsigned struct_user_vfpregs_struct_sz;
808 
809 extern int ptrace_peektext;
810 extern int ptrace_peekdata;
811 extern int ptrace_peekuser;
812 extern int ptrace_getregs;
813 extern int ptrace_setregs;
814 extern int ptrace_getfpregs;
815 extern int ptrace_setfpregs;
816 extern int ptrace_getfpxregs;
817 extern int ptrace_setfpxregs;
818 extern int ptrace_getvfpregs;
819 extern int ptrace_setvfpregs;
820 extern int ptrace_getsiginfo;
821 extern int ptrace_setsiginfo;
822 extern int ptrace_getregset;
823 extern int ptrace_setregset;
824 extern int ptrace_geteventmsg;
825 #endif
826 
827 #if SANITIZER_LINUX  && !SANITIZER_ANDROID
828 extern unsigned struct_shminfo_sz;
829 extern unsigned struct_shm_info_sz;
830 extern int shmctl_ipc_stat;
831 extern int shmctl_ipc_info;
832 extern int shmctl_shm_info;
833 extern int shmctl_shm_stat;
834 #endif
835 
836 #if !SANITIZER_MAC && !SANITIZER_FREEBSD
837 extern unsigned struct_utmp_sz;
838 #endif
839 #if !SANITIZER_ANDROID
840 extern unsigned struct_utmpx_sz;
841 #endif
842 
843 extern int map_fixed;
844 
845 // ioctl arguments
846 struct __sanitizer_ifconf {
847   int ifc_len;
848   union {
849     void *ifcu_req;
850   } ifc_ifcu;
851 #if SANITIZER_MAC
852 } __attribute__((packed));
853 #else
854 };
855 #endif
856 
857 #if SANITIZER_LINUX && !SANITIZER_ANDROID
858 struct __sanitizer__obstack_chunk {
859   char *limit;
860   struct __sanitizer__obstack_chunk *prev;
861 };
862 
863 struct __sanitizer_obstack {
864   long chunk_size;
865   struct __sanitizer__obstack_chunk *chunk;
866   char *object_base;
867   char *next_free;
868   uptr more_fields[7];
869 };
870 
871 typedef uptr (*__sanitizer_cookie_io_read)(void *cookie, char *buf, uptr size);
872 typedef uptr (*__sanitizer_cookie_io_write)(void *cookie, const char *buf,
873                                             uptr size);
874 typedef int (*__sanitizer_cookie_io_seek)(void *cookie, u64 *offset,
875                                           int whence);
876 typedef int (*__sanitizer_cookie_io_close)(void *cookie);
877 
878 struct __sanitizer_cookie_io_functions_t {
879   __sanitizer_cookie_io_read read;
880   __sanitizer_cookie_io_write write;
881   __sanitizer_cookie_io_seek seek;
882   __sanitizer_cookie_io_close close;
883 };
884 #endif
885 
886 #define IOC_NRBITS 8
887 #define IOC_TYPEBITS 8
888 #if defined(__powerpc__) || defined(__powerpc64__) || defined(__mips__) || \
889     defined(__sparc__)
890 #define IOC_SIZEBITS 13
891 #define IOC_DIRBITS 3
892 #define IOC_NONE 1U
893 #define IOC_WRITE 4U
894 #define IOC_READ 2U
895 #else
896 #define IOC_SIZEBITS 14
897 #define IOC_DIRBITS 2
898 #define IOC_NONE 0U
899 #define IOC_WRITE 1U
900 #define IOC_READ 2U
901 #endif
902 #define IOC_NRMASK ((1 << IOC_NRBITS) - 1)
903 #define IOC_TYPEMASK ((1 << IOC_TYPEBITS) - 1)
904 #define IOC_SIZEMASK ((1 << IOC_SIZEBITS) - 1)
905 #if defined(IOC_DIRMASK)
906 #undef IOC_DIRMASK
907 #endif
908 #define IOC_DIRMASK ((1 << IOC_DIRBITS) - 1)
909 #define IOC_NRSHIFT 0
910 #define IOC_TYPESHIFT (IOC_NRSHIFT + IOC_NRBITS)
911 #define IOC_SIZESHIFT (IOC_TYPESHIFT + IOC_TYPEBITS)
912 #define IOC_DIRSHIFT (IOC_SIZESHIFT + IOC_SIZEBITS)
913 #define EVIOC_EV_MAX 0x1f
914 #define EVIOC_ABS_MAX 0x3f
915 
916 #define IOC_DIR(nr) (((nr) >> IOC_DIRSHIFT) & IOC_DIRMASK)
917 #define IOC_TYPE(nr) (((nr) >> IOC_TYPESHIFT) & IOC_TYPEMASK)
918 #define IOC_NR(nr) (((nr) >> IOC_NRSHIFT) & IOC_NRMASK)
919 
920 #if defined(__sparc__)
921 // In sparc the 14 bits SIZE field overlaps with the
922 // least significant bit of DIR, so either IOC_READ or
923 // IOC_WRITE shall be 1 in order to get a non-zero SIZE.
924 #define IOC_SIZE(nr) \
925   ((((((nr) >> 29) & 0x7) & (4U | 2U)) == 0) ? 0 : (((nr) >> 16) & 0x3fff))
926 #else
927 #define IOC_SIZE(nr) (((nr) >> IOC_SIZESHIFT) & IOC_SIZEMASK)
928 #endif
929 
930 extern unsigned struct_ifreq_sz;
931 extern unsigned struct_termios_sz;
932 extern unsigned struct_winsize_sz;
933 
934 #if SANITIZER_LINUX
935 extern unsigned struct_arpreq_sz;
936 extern unsigned struct_cdrom_msf_sz;
937 extern unsigned struct_cdrom_multisession_sz;
938 extern unsigned struct_cdrom_read_audio_sz;
939 extern unsigned struct_cdrom_subchnl_sz;
940 extern unsigned struct_cdrom_ti_sz;
941 extern unsigned struct_cdrom_tocentry_sz;
942 extern unsigned struct_cdrom_tochdr_sz;
943 extern unsigned struct_cdrom_volctrl_sz;
944 extern unsigned struct_ff_effect_sz;
945 extern unsigned struct_floppy_drive_params_sz;
946 extern unsigned struct_floppy_drive_struct_sz;
947 extern unsigned struct_floppy_fdc_state_sz;
948 extern unsigned struct_floppy_max_errors_sz;
949 extern unsigned struct_floppy_raw_cmd_sz;
950 extern unsigned struct_floppy_struct_sz;
951 extern unsigned struct_floppy_write_errors_sz;
952 extern unsigned struct_format_descr_sz;
953 extern unsigned struct_hd_driveid_sz;
954 extern unsigned struct_hd_geometry_sz;
955 extern unsigned struct_input_absinfo_sz;
956 extern unsigned struct_input_id_sz;
957 extern unsigned struct_mtpos_sz;
958 extern unsigned struct_termio_sz;
959 extern unsigned struct_vt_consize_sz;
960 extern unsigned struct_vt_sizes_sz;
961 extern unsigned struct_vt_stat_sz;
962 #endif  // SANITIZER_LINUX
963 
964 #if SANITIZER_LINUX
965 extern unsigned struct_copr_buffer_sz;
966 extern unsigned struct_copr_debug_buf_sz;
967 extern unsigned struct_copr_msg_sz;
968 extern unsigned struct_midi_info_sz;
969 extern unsigned struct_mtget_sz;
970 extern unsigned struct_mtop_sz;
971 extern unsigned struct_rtentry_sz;
972 extern unsigned struct_sbi_instrument_sz;
973 extern unsigned struct_seq_event_rec_sz;
974 extern unsigned struct_synth_info_sz;
975 extern unsigned struct_vt_mode_sz;
976 #endif // SANITIZER_LINUX
977 
978 #if SANITIZER_LINUX && !SANITIZER_ANDROID
979 extern unsigned struct_ax25_parms_struct_sz;
980 extern unsigned struct_cyclades_monitor_sz;
981 extern unsigned struct_input_keymap_entry_sz;
982 extern unsigned struct_ipx_config_data_sz;
983 extern unsigned struct_kbdiacrs_sz;
984 extern unsigned struct_kbentry_sz;
985 extern unsigned struct_kbkeycode_sz;
986 extern unsigned struct_kbsentry_sz;
987 extern unsigned struct_mtconfiginfo_sz;
988 extern unsigned struct_nr_parms_struct_sz;
989 extern unsigned struct_scc_modem_sz;
990 extern unsigned struct_scc_stat_sz;
991 extern unsigned struct_serial_multiport_struct_sz;
992 extern unsigned struct_serial_struct_sz;
993 extern unsigned struct_sockaddr_ax25_sz;
994 extern unsigned struct_unimapdesc_sz;
995 extern unsigned struct_unimapinit_sz;
996 #endif  // SANITIZER_LINUX && !SANITIZER_ANDROID
997 
998 extern const unsigned long __sanitizer_bufsiz;
999 
1000 #if SANITIZER_LINUX && !SANITIZER_ANDROID
1001 extern unsigned struct_audio_buf_info_sz;
1002 extern unsigned struct_ppp_stats_sz;
1003 #endif  // (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
1004 
1005 #if !SANITIZER_ANDROID && !SANITIZER_MAC
1006 extern unsigned struct_sioc_sg_req_sz;
1007 extern unsigned struct_sioc_vif_req_sz;
1008 #endif
1009 
1010 // ioctl request identifiers
1011 
1012 // A special value to mark ioctls that are not present on the target platform,
1013 // when it can not be determined without including any system headers.
1014 extern const unsigned IOCTL_NOT_PRESENT;
1015 
1016 extern unsigned IOCTL_FIOASYNC;
1017 extern unsigned IOCTL_FIOCLEX;
1018 extern unsigned IOCTL_FIOGETOWN;
1019 extern unsigned IOCTL_FIONBIO;
1020 extern unsigned IOCTL_FIONCLEX;
1021 extern unsigned IOCTL_FIOSETOWN;
1022 extern unsigned IOCTL_SIOCADDMULTI;
1023 extern unsigned IOCTL_SIOCATMARK;
1024 extern unsigned IOCTL_SIOCDELMULTI;
1025 extern unsigned IOCTL_SIOCGIFADDR;
1026 extern unsigned IOCTL_SIOCGIFBRDADDR;
1027 extern unsigned IOCTL_SIOCGIFCONF;
1028 extern unsigned IOCTL_SIOCGIFDSTADDR;
1029 extern unsigned IOCTL_SIOCGIFFLAGS;
1030 extern unsigned IOCTL_SIOCGIFMETRIC;
1031 extern unsigned IOCTL_SIOCGIFMTU;
1032 extern unsigned IOCTL_SIOCGIFNETMASK;
1033 extern unsigned IOCTL_SIOCGPGRP;
1034 extern unsigned IOCTL_SIOCSIFADDR;
1035 extern unsigned IOCTL_SIOCSIFBRDADDR;
1036 extern unsigned IOCTL_SIOCSIFDSTADDR;
1037 extern unsigned IOCTL_SIOCSIFFLAGS;
1038 extern unsigned IOCTL_SIOCSIFMETRIC;
1039 extern unsigned IOCTL_SIOCSIFMTU;
1040 extern unsigned IOCTL_SIOCSIFNETMASK;
1041 extern unsigned IOCTL_SIOCSPGRP;
1042 extern unsigned IOCTL_TIOCCONS;
1043 extern unsigned IOCTL_TIOCEXCL;
1044 extern unsigned IOCTL_TIOCGETD;
1045 extern unsigned IOCTL_TIOCGPGRP;
1046 extern unsigned IOCTL_TIOCGWINSZ;
1047 extern unsigned IOCTL_TIOCMBIC;
1048 extern unsigned IOCTL_TIOCMBIS;
1049 extern unsigned IOCTL_TIOCMGET;
1050 extern unsigned IOCTL_TIOCMSET;
1051 extern unsigned IOCTL_TIOCNOTTY;
1052 extern unsigned IOCTL_TIOCNXCL;
1053 extern unsigned IOCTL_TIOCOUTQ;
1054 extern unsigned IOCTL_TIOCPKT;
1055 extern unsigned IOCTL_TIOCSCTTY;
1056 extern unsigned IOCTL_TIOCSETD;
1057 extern unsigned IOCTL_TIOCSPGRP;
1058 extern unsigned IOCTL_TIOCSTI;
1059 extern unsigned IOCTL_TIOCSWINSZ;
1060 #if SANITIZER_LINUX && !SANITIZER_ANDROID
1061 extern unsigned IOCTL_SIOCGETSGCNT;
1062 extern unsigned IOCTL_SIOCGETVIFCNT;
1063 #endif
1064 #if SANITIZER_LINUX
1065 extern unsigned IOCTL_EVIOCGABS;
1066 extern unsigned IOCTL_EVIOCGBIT;
1067 extern unsigned IOCTL_EVIOCGEFFECTS;
1068 extern unsigned IOCTL_EVIOCGID;
1069 extern unsigned IOCTL_EVIOCGKEY;
1070 extern unsigned IOCTL_EVIOCGKEYCODE;
1071 extern unsigned IOCTL_EVIOCGLED;
1072 extern unsigned IOCTL_EVIOCGNAME;
1073 extern unsigned IOCTL_EVIOCGPHYS;
1074 extern unsigned IOCTL_EVIOCGRAB;
1075 extern unsigned IOCTL_EVIOCGREP;
1076 extern unsigned IOCTL_EVIOCGSND;
1077 extern unsigned IOCTL_EVIOCGSW;
1078 extern unsigned IOCTL_EVIOCGUNIQ;
1079 extern unsigned IOCTL_EVIOCGVERSION;
1080 extern unsigned IOCTL_EVIOCRMFF;
1081 extern unsigned IOCTL_EVIOCSABS;
1082 extern unsigned IOCTL_EVIOCSFF;
1083 extern unsigned IOCTL_EVIOCSKEYCODE;
1084 extern unsigned IOCTL_EVIOCSREP;
1085 extern unsigned IOCTL_BLKFLSBUF;
1086 extern unsigned IOCTL_BLKGETSIZE;
1087 extern unsigned IOCTL_BLKRAGET;
1088 extern unsigned IOCTL_BLKRASET;
1089 extern unsigned IOCTL_BLKROGET;
1090 extern unsigned IOCTL_BLKROSET;
1091 extern unsigned IOCTL_BLKRRPART;
1092 extern unsigned IOCTL_CDROMAUDIOBUFSIZ;
1093 extern unsigned IOCTL_CDROMEJECT;
1094 extern unsigned IOCTL_CDROMEJECT_SW;
1095 extern unsigned IOCTL_CDROMMULTISESSION;
1096 extern unsigned IOCTL_CDROMPAUSE;
1097 extern unsigned IOCTL_CDROMPLAYMSF;
1098 extern unsigned IOCTL_CDROMPLAYTRKIND;
1099 extern unsigned IOCTL_CDROMREADAUDIO;
1100 extern unsigned IOCTL_CDROMREADCOOKED;
1101 extern unsigned IOCTL_CDROMREADMODE1;
1102 extern unsigned IOCTL_CDROMREADMODE2;
1103 extern unsigned IOCTL_CDROMREADRAW;
1104 extern unsigned IOCTL_CDROMREADTOCENTRY;
1105 extern unsigned IOCTL_CDROMREADTOCHDR;
1106 extern unsigned IOCTL_CDROMRESET;
1107 extern unsigned IOCTL_CDROMRESUME;
1108 extern unsigned IOCTL_CDROMSEEK;
1109 extern unsigned IOCTL_CDROMSTART;
1110 extern unsigned IOCTL_CDROMSTOP;
1111 extern unsigned IOCTL_CDROMSUBCHNL;
1112 extern unsigned IOCTL_CDROMVOLCTRL;
1113 extern unsigned IOCTL_CDROMVOLREAD;
1114 extern unsigned IOCTL_CDROM_GET_UPC;
1115 extern unsigned IOCTL_FDCLRPRM;
1116 extern unsigned IOCTL_FDDEFPRM;
1117 extern unsigned IOCTL_FDFLUSH;
1118 extern unsigned IOCTL_FDFMTBEG;
1119 extern unsigned IOCTL_FDFMTEND;
1120 extern unsigned IOCTL_FDFMTTRK;
1121 extern unsigned IOCTL_FDGETDRVPRM;
1122 extern unsigned IOCTL_FDGETDRVSTAT;
1123 extern unsigned IOCTL_FDGETDRVTYP;
1124 extern unsigned IOCTL_FDGETFDCSTAT;
1125 extern unsigned IOCTL_FDGETMAXERRS;
1126 extern unsigned IOCTL_FDGETPRM;
1127 extern unsigned IOCTL_FDMSGOFF;
1128 extern unsigned IOCTL_FDMSGON;
1129 extern unsigned IOCTL_FDPOLLDRVSTAT;
1130 extern unsigned IOCTL_FDRAWCMD;
1131 extern unsigned IOCTL_FDRESET;
1132 extern unsigned IOCTL_FDSETDRVPRM;
1133 extern unsigned IOCTL_FDSETEMSGTRESH;
1134 extern unsigned IOCTL_FDSETMAXERRS;
1135 extern unsigned IOCTL_FDSETPRM;
1136 extern unsigned IOCTL_FDTWADDLE;
1137 extern unsigned IOCTL_FDWERRORCLR;
1138 extern unsigned IOCTL_FDWERRORGET;
1139 extern unsigned IOCTL_HDIO_DRIVE_CMD;
1140 extern unsigned IOCTL_HDIO_GETGEO;
1141 extern unsigned IOCTL_HDIO_GET_32BIT;
1142 extern unsigned IOCTL_HDIO_GET_DMA;
1143 extern unsigned IOCTL_HDIO_GET_IDENTITY;
1144 extern unsigned IOCTL_HDIO_GET_KEEPSETTINGS;
1145 extern unsigned IOCTL_HDIO_GET_MULTCOUNT;
1146 extern unsigned IOCTL_HDIO_GET_NOWERR;
1147 extern unsigned IOCTL_HDIO_GET_UNMASKINTR;
1148 extern unsigned IOCTL_HDIO_SET_32BIT;
1149 extern unsigned IOCTL_HDIO_SET_DMA;
1150 extern unsigned IOCTL_HDIO_SET_KEEPSETTINGS;
1151 extern unsigned IOCTL_HDIO_SET_MULTCOUNT;
1152 extern unsigned IOCTL_HDIO_SET_NOWERR;
1153 extern unsigned IOCTL_HDIO_SET_UNMASKINTR;
1154 extern unsigned IOCTL_MTIOCPOS;
1155 extern unsigned IOCTL_PPPIOCGASYNCMAP;
1156 extern unsigned IOCTL_PPPIOCGDEBUG;
1157 extern unsigned IOCTL_PPPIOCGFLAGS;
1158 extern unsigned IOCTL_PPPIOCGUNIT;
1159 extern unsigned IOCTL_PPPIOCGXASYNCMAP;
1160 extern unsigned IOCTL_PPPIOCSASYNCMAP;
1161 extern unsigned IOCTL_PPPIOCSDEBUG;
1162 extern unsigned IOCTL_PPPIOCSFLAGS;
1163 extern unsigned IOCTL_PPPIOCSMAXCID;
1164 extern unsigned IOCTL_PPPIOCSMRU;
1165 extern unsigned IOCTL_PPPIOCSXASYNCMAP;
1166 extern unsigned IOCTL_SIOCDARP;
1167 extern unsigned IOCTL_SIOCDRARP;
1168 extern unsigned IOCTL_SIOCGARP;
1169 extern unsigned IOCTL_SIOCGIFENCAP;
1170 extern unsigned IOCTL_SIOCGIFHWADDR;
1171 extern unsigned IOCTL_SIOCGIFMAP;
1172 extern unsigned IOCTL_SIOCGIFMEM;
1173 extern unsigned IOCTL_SIOCGIFNAME;
1174 extern unsigned IOCTL_SIOCGIFSLAVE;
1175 extern unsigned IOCTL_SIOCGRARP;
1176 extern unsigned IOCTL_SIOCGSTAMP;
1177 extern unsigned IOCTL_SIOCSARP;
1178 extern unsigned IOCTL_SIOCSIFENCAP;
1179 extern unsigned IOCTL_SIOCSIFHWADDR;
1180 extern unsigned IOCTL_SIOCSIFLINK;
1181 extern unsigned IOCTL_SIOCSIFMAP;
1182 extern unsigned IOCTL_SIOCSIFMEM;
1183 extern unsigned IOCTL_SIOCSIFSLAVE;
1184 extern unsigned IOCTL_SIOCSRARP;
1185 extern unsigned IOCTL_SNDCTL_COPR_HALT;
1186 extern unsigned IOCTL_SNDCTL_COPR_LOAD;
1187 extern unsigned IOCTL_SNDCTL_COPR_RCODE;
1188 extern unsigned IOCTL_SNDCTL_COPR_RCVMSG;
1189 extern unsigned IOCTL_SNDCTL_COPR_RDATA;
1190 extern unsigned IOCTL_SNDCTL_COPR_RESET;
1191 extern unsigned IOCTL_SNDCTL_COPR_RUN;
1192 extern unsigned IOCTL_SNDCTL_COPR_SENDMSG;
1193 extern unsigned IOCTL_SNDCTL_COPR_WCODE;
1194 extern unsigned IOCTL_SNDCTL_COPR_WDATA;
1195 extern unsigned IOCTL_TCFLSH;
1196 extern unsigned IOCTL_TCGETA;
1197 extern unsigned IOCTL_TCGETS;
1198 extern unsigned IOCTL_TCSBRK;
1199 extern unsigned IOCTL_TCSBRKP;
1200 extern unsigned IOCTL_TCSETA;
1201 extern unsigned IOCTL_TCSETAF;
1202 extern unsigned IOCTL_TCSETAW;
1203 extern unsigned IOCTL_TCSETS;
1204 extern unsigned IOCTL_TCSETSF;
1205 extern unsigned IOCTL_TCSETSW;
1206 extern unsigned IOCTL_TCXONC;
1207 extern unsigned IOCTL_TIOCGLCKTRMIOS;
1208 extern unsigned IOCTL_TIOCGSOFTCAR;
1209 extern unsigned IOCTL_TIOCINQ;
1210 extern unsigned IOCTL_TIOCLINUX;
1211 extern unsigned IOCTL_TIOCSERCONFIG;
1212 extern unsigned IOCTL_TIOCSERGETLSR;
1213 extern unsigned IOCTL_TIOCSERGWILD;
1214 extern unsigned IOCTL_TIOCSERSWILD;
1215 extern unsigned IOCTL_TIOCSLCKTRMIOS;
1216 extern unsigned IOCTL_TIOCSSOFTCAR;
1217 extern unsigned IOCTL_VT_DISALLOCATE;
1218 extern unsigned IOCTL_VT_GETSTATE;
1219 extern unsigned IOCTL_VT_RESIZE;
1220 extern unsigned IOCTL_VT_RESIZEX;
1221 extern unsigned IOCTL_VT_SENDSIG;
1222 extern unsigned IOCTL_MTIOCGET;
1223 extern unsigned IOCTL_MTIOCTOP;
1224 extern unsigned IOCTL_SIOCADDRT;
1225 extern unsigned IOCTL_SIOCDELRT;
1226 extern unsigned IOCTL_SNDCTL_DSP_GETBLKSIZE;
1227 extern unsigned IOCTL_SNDCTL_DSP_GETFMTS;
1228 extern unsigned IOCTL_SNDCTL_DSP_NONBLOCK;
1229 extern unsigned IOCTL_SNDCTL_DSP_POST;
1230 extern unsigned IOCTL_SNDCTL_DSP_RESET;
1231 extern unsigned IOCTL_SNDCTL_DSP_SETFMT;
1232 extern unsigned IOCTL_SNDCTL_DSP_SETFRAGMENT;
1233 extern unsigned IOCTL_SNDCTL_DSP_SPEED;
1234 extern unsigned IOCTL_SNDCTL_DSP_STEREO;
1235 extern unsigned IOCTL_SNDCTL_DSP_SUBDIVIDE;
1236 extern unsigned IOCTL_SNDCTL_DSP_SYNC;
1237 extern unsigned IOCTL_SNDCTL_FM_4OP_ENABLE;
1238 extern unsigned IOCTL_SNDCTL_FM_LOAD_INSTR;
1239 extern unsigned IOCTL_SNDCTL_MIDI_INFO;
1240 extern unsigned IOCTL_SNDCTL_MIDI_PRETIME;
1241 extern unsigned IOCTL_SNDCTL_SEQ_CTRLRATE;
1242 extern unsigned IOCTL_SNDCTL_SEQ_GETINCOUNT;
1243 extern unsigned IOCTL_SNDCTL_SEQ_GETOUTCOUNT;
1244 extern unsigned IOCTL_SNDCTL_SEQ_NRMIDIS;
1245 extern unsigned IOCTL_SNDCTL_SEQ_NRSYNTHS;
1246 extern unsigned IOCTL_SNDCTL_SEQ_OUTOFBAND;
1247 extern unsigned IOCTL_SNDCTL_SEQ_PANIC;
1248 extern unsigned IOCTL_SNDCTL_SEQ_PERCMODE;
1249 extern unsigned IOCTL_SNDCTL_SEQ_RESET;
1250 extern unsigned IOCTL_SNDCTL_SEQ_RESETSAMPLES;
1251 extern unsigned IOCTL_SNDCTL_SEQ_SYNC;
1252 extern unsigned IOCTL_SNDCTL_SEQ_TESTMIDI;
1253 extern unsigned IOCTL_SNDCTL_SEQ_THRESHOLD;
1254 extern unsigned IOCTL_SNDCTL_SYNTH_INFO;
1255 extern unsigned IOCTL_SNDCTL_SYNTH_MEMAVL;
1256 extern unsigned IOCTL_SNDCTL_TMR_CONTINUE;
1257 extern unsigned IOCTL_SNDCTL_TMR_METRONOME;
1258 extern unsigned IOCTL_SNDCTL_TMR_SELECT;
1259 extern unsigned IOCTL_SNDCTL_TMR_SOURCE;
1260 extern unsigned IOCTL_SNDCTL_TMR_START;
1261 extern unsigned IOCTL_SNDCTL_TMR_STOP;
1262 extern unsigned IOCTL_SNDCTL_TMR_TEMPO;
1263 extern unsigned IOCTL_SNDCTL_TMR_TIMEBASE;
1264 extern unsigned IOCTL_SOUND_MIXER_READ_ALTPCM;
1265 extern unsigned IOCTL_SOUND_MIXER_READ_BASS;
1266 extern unsigned IOCTL_SOUND_MIXER_READ_CAPS;
1267 extern unsigned IOCTL_SOUND_MIXER_READ_CD;
1268 extern unsigned IOCTL_SOUND_MIXER_READ_DEVMASK;
1269 extern unsigned IOCTL_SOUND_MIXER_READ_ENHANCE;
1270 extern unsigned IOCTL_SOUND_MIXER_READ_IGAIN;
1271 extern unsigned IOCTL_SOUND_MIXER_READ_IMIX;
1272 extern unsigned IOCTL_SOUND_MIXER_READ_LINE1;
1273 extern unsigned IOCTL_SOUND_MIXER_READ_LINE2;
1274 extern unsigned IOCTL_SOUND_MIXER_READ_LINE3;
1275 extern unsigned IOCTL_SOUND_MIXER_READ_LINE;
1276 extern unsigned IOCTL_SOUND_MIXER_READ_LOUD;
1277 extern unsigned IOCTL_SOUND_MIXER_READ_MIC;
1278 extern unsigned IOCTL_SOUND_MIXER_READ_MUTE;
1279 extern unsigned IOCTL_SOUND_MIXER_READ_OGAIN;
1280 extern unsigned IOCTL_SOUND_MIXER_READ_PCM;
1281 extern unsigned IOCTL_SOUND_MIXER_READ_RECLEV;
1282 extern unsigned IOCTL_SOUND_MIXER_READ_RECMASK;
1283 extern unsigned IOCTL_SOUND_MIXER_READ_RECSRC;
1284 extern unsigned IOCTL_SOUND_MIXER_READ_SPEAKER;
1285 extern unsigned IOCTL_SOUND_MIXER_READ_STEREODEVS;
1286 extern unsigned IOCTL_SOUND_MIXER_READ_SYNTH;
1287 extern unsigned IOCTL_SOUND_MIXER_READ_TREBLE;
1288 extern unsigned IOCTL_SOUND_MIXER_READ_VOLUME;
1289 extern unsigned IOCTL_SOUND_MIXER_WRITE_ALTPCM;
1290 extern unsigned IOCTL_SOUND_MIXER_WRITE_BASS;
1291 extern unsigned IOCTL_SOUND_MIXER_WRITE_CD;
1292 extern unsigned IOCTL_SOUND_MIXER_WRITE_ENHANCE;
1293 extern unsigned IOCTL_SOUND_MIXER_WRITE_IGAIN;
1294 extern unsigned IOCTL_SOUND_MIXER_WRITE_IMIX;
1295 extern unsigned IOCTL_SOUND_MIXER_WRITE_LINE1;
1296 extern unsigned IOCTL_SOUND_MIXER_WRITE_LINE2;
1297 extern unsigned IOCTL_SOUND_MIXER_WRITE_LINE3;
1298 extern unsigned IOCTL_SOUND_MIXER_WRITE_LINE;
1299 extern unsigned IOCTL_SOUND_MIXER_WRITE_LOUD;
1300 extern unsigned IOCTL_SOUND_MIXER_WRITE_MIC;
1301 extern unsigned IOCTL_SOUND_MIXER_WRITE_MUTE;
1302 extern unsigned IOCTL_SOUND_MIXER_WRITE_OGAIN;
1303 extern unsigned IOCTL_SOUND_MIXER_WRITE_PCM;
1304 extern unsigned IOCTL_SOUND_MIXER_WRITE_RECLEV;
1305 extern unsigned IOCTL_SOUND_MIXER_WRITE_RECSRC;
1306 extern unsigned IOCTL_SOUND_MIXER_WRITE_SPEAKER;
1307 extern unsigned IOCTL_SOUND_MIXER_WRITE_SYNTH;
1308 extern unsigned IOCTL_SOUND_MIXER_WRITE_TREBLE;
1309 extern unsigned IOCTL_SOUND_MIXER_WRITE_VOLUME;
1310 extern unsigned IOCTL_SOUND_PCM_READ_BITS;
1311 extern unsigned IOCTL_SOUND_PCM_READ_CHANNELS;
1312 extern unsigned IOCTL_SOUND_PCM_READ_FILTER;
1313 extern unsigned IOCTL_SOUND_PCM_READ_RATE;
1314 extern unsigned IOCTL_SOUND_PCM_WRITE_CHANNELS;
1315 extern unsigned IOCTL_SOUND_PCM_WRITE_FILTER;
1316 extern unsigned IOCTL_VT_ACTIVATE;
1317 extern unsigned IOCTL_VT_GETMODE;
1318 extern unsigned IOCTL_VT_OPENQRY;
1319 extern unsigned IOCTL_VT_RELDISP;
1320 extern unsigned IOCTL_VT_SETMODE;
1321 extern unsigned IOCTL_VT_WAITACTIVE;
1322 #endif  // SANITIZER_LINUX
1323 
1324 #if SANITIZER_LINUX && !SANITIZER_ANDROID
1325 extern unsigned IOCTL_CYGETDEFTHRESH;
1326 extern unsigned IOCTL_CYGETDEFTIMEOUT;
1327 extern unsigned IOCTL_CYGETMON;
1328 extern unsigned IOCTL_CYGETTHRESH;
1329 extern unsigned IOCTL_CYGETTIMEOUT;
1330 extern unsigned IOCTL_CYSETDEFTHRESH;
1331 extern unsigned IOCTL_CYSETDEFTIMEOUT;
1332 extern unsigned IOCTL_CYSETTHRESH;
1333 extern unsigned IOCTL_CYSETTIMEOUT;
1334 extern unsigned IOCTL_EQL_EMANCIPATE;
1335 extern unsigned IOCTL_EQL_ENSLAVE;
1336 extern unsigned IOCTL_EQL_GETMASTRCFG;
1337 extern unsigned IOCTL_EQL_GETSLAVECFG;
1338 extern unsigned IOCTL_EQL_SETMASTRCFG;
1339 extern unsigned IOCTL_EQL_SETSLAVECFG;
1340 extern unsigned IOCTL_EVIOCGKEYCODE_V2;
1341 extern unsigned IOCTL_EVIOCGPROP;
1342 extern unsigned IOCTL_EVIOCSKEYCODE_V2;
1343 extern unsigned IOCTL_FS_IOC_GETFLAGS;
1344 extern unsigned IOCTL_FS_IOC_GETVERSION;
1345 extern unsigned IOCTL_FS_IOC_SETFLAGS;
1346 extern unsigned IOCTL_FS_IOC_SETVERSION;
1347 extern unsigned IOCTL_GIO_CMAP;
1348 extern unsigned IOCTL_GIO_FONT;
1349 extern unsigned IOCTL_GIO_UNIMAP;
1350 extern unsigned IOCTL_GIO_UNISCRNMAP;
1351 extern unsigned IOCTL_KDADDIO;
1352 extern unsigned IOCTL_KDDELIO;
1353 extern unsigned IOCTL_KDGETKEYCODE;
1354 extern unsigned IOCTL_KDGKBDIACR;
1355 extern unsigned IOCTL_KDGKBENT;
1356 extern unsigned IOCTL_KDGKBLED;
1357 extern unsigned IOCTL_KDGKBMETA;
1358 extern unsigned IOCTL_KDGKBSENT;
1359 extern unsigned IOCTL_KDMAPDISP;
1360 extern unsigned IOCTL_KDSETKEYCODE;
1361 extern unsigned IOCTL_KDSIGACCEPT;
1362 extern unsigned IOCTL_KDSKBDIACR;
1363 extern unsigned IOCTL_KDSKBENT;
1364 extern unsigned IOCTL_KDSKBLED;
1365 extern unsigned IOCTL_KDSKBMETA;
1366 extern unsigned IOCTL_KDSKBSENT;
1367 extern unsigned IOCTL_KDUNMAPDISP;
1368 extern unsigned IOCTL_LPABORT;
1369 extern unsigned IOCTL_LPABORTOPEN;
1370 extern unsigned IOCTL_LPCAREFUL;
1371 extern unsigned IOCTL_LPCHAR;
1372 extern unsigned IOCTL_LPGETIRQ;
1373 extern unsigned IOCTL_LPGETSTATUS;
1374 extern unsigned IOCTL_LPRESET;
1375 extern unsigned IOCTL_LPSETIRQ;
1376 extern unsigned IOCTL_LPTIME;
1377 extern unsigned IOCTL_LPWAIT;
1378 extern unsigned IOCTL_MTIOCGETCONFIG;
1379 extern unsigned IOCTL_MTIOCSETCONFIG;
1380 extern unsigned IOCTL_PIO_CMAP;
1381 extern unsigned IOCTL_PIO_FONT;
1382 extern unsigned IOCTL_PIO_UNIMAP;
1383 extern unsigned IOCTL_PIO_UNIMAPCLR;
1384 extern unsigned IOCTL_PIO_UNISCRNMAP;
1385 extern unsigned IOCTL_SCSI_IOCTL_GET_IDLUN;
1386 extern unsigned IOCTL_SCSI_IOCTL_PROBE_HOST;
1387 extern unsigned IOCTL_SCSI_IOCTL_TAGGED_DISABLE;
1388 extern unsigned IOCTL_SCSI_IOCTL_TAGGED_ENABLE;
1389 extern unsigned IOCTL_SIOCAIPXITFCRT;
1390 extern unsigned IOCTL_SIOCAIPXPRISLT;
1391 extern unsigned IOCTL_SIOCAX25ADDUID;
1392 extern unsigned IOCTL_SIOCAX25DELUID;
1393 extern unsigned IOCTL_SIOCAX25GETPARMS;
1394 extern unsigned IOCTL_SIOCAX25GETUID;
1395 extern unsigned IOCTL_SIOCAX25NOUID;
1396 extern unsigned IOCTL_SIOCAX25SETPARMS;
1397 extern unsigned IOCTL_SIOCDEVPLIP;
1398 extern unsigned IOCTL_SIOCIPXCFGDATA;
1399 extern unsigned IOCTL_SIOCNRDECOBS;
1400 extern unsigned IOCTL_SIOCNRGETPARMS;
1401 extern unsigned IOCTL_SIOCNRRTCTL;
1402 extern unsigned IOCTL_SIOCNRSETPARMS;
1403 extern unsigned IOCTL_SNDCTL_DSP_GETISPACE;
1404 extern unsigned IOCTL_SNDCTL_DSP_GETOSPACE;
1405 extern unsigned IOCTL_TIOCGSERIAL;
1406 extern unsigned IOCTL_TIOCSERGETMULTI;
1407 extern unsigned IOCTL_TIOCSERSETMULTI;
1408 extern unsigned IOCTL_TIOCSSERIAL;
1409 extern unsigned IOCTL_GIO_SCRNMAP;
1410 extern unsigned IOCTL_KDDISABIO;
1411 extern unsigned IOCTL_KDENABIO;
1412 extern unsigned IOCTL_KDGETLED;
1413 extern unsigned IOCTL_KDGETMODE;
1414 extern unsigned IOCTL_KDGKBMODE;
1415 extern unsigned IOCTL_KDGKBTYPE;
1416 extern unsigned IOCTL_KDMKTONE;
1417 extern unsigned IOCTL_KDSETLED;
1418 extern unsigned IOCTL_KDSETMODE;
1419 extern unsigned IOCTL_KDSKBMODE;
1420 extern unsigned IOCTL_KIOCSOUND;
1421 extern unsigned IOCTL_PIO_SCRNMAP;
1422 #endif
1423 
1424 extern const int si_SEGV_MAPERR;
1425 extern const int si_SEGV_ACCERR;
1426 }  // namespace __sanitizer
1427 
1428 #define CHECK_TYPE_SIZE(TYPE) \
1429   COMPILER_CHECK(sizeof(__sanitizer_##TYPE) == sizeof(TYPE))
1430 
1431 #define CHECK_SIZE_AND_OFFSET(CLASS, MEMBER)                      \
1432   COMPILER_CHECK(sizeof(((__sanitizer_##CLASS *)NULL)->MEMBER) == \
1433                  sizeof(((CLASS *)NULL)->MEMBER));                \
1434   COMPILER_CHECK(offsetof(__sanitizer_##CLASS, MEMBER) ==         \
1435                  offsetof(CLASS, MEMBER))
1436 
1437 // For sigaction, which is a function and struct at the same time,
1438 // and thus requires explicit "struct" in sizeof() expression.
1439 #define CHECK_STRUCT_SIZE_AND_OFFSET(CLASS, MEMBER)                      \
1440   COMPILER_CHECK(sizeof(((struct __sanitizer_##CLASS *)NULL)->MEMBER) == \
1441                  sizeof(((struct CLASS *)NULL)->MEMBER));                \
1442   COMPILER_CHECK(offsetof(struct __sanitizer_##CLASS, MEMBER) ==         \
1443                  offsetof(struct CLASS, MEMBER))
1444 
1445 #define SIGACTION_SYMNAME sigaction
1446 
1447 #endif  // SANITIZER_LINUX || SANITIZER_MAC
1448 
1449 #endif
1450