1 //===-- sanitizer_platform_limits_posix.h ---------------------------------===//
2 //
3 // This file is distributed under the University of Illinois Open Source
4 // License. See LICENSE.TXT for details.
5 //
6 //===----------------------------------------------------------------------===//
7 //
8 // This file is a part of Sanitizer common code.
9 //
10 // Sizes and layouts of platform-specific POSIX data structures.
11 //===----------------------------------------------------------------------===//
12 
13 #ifndef SANITIZER_PLATFORM_LIMITS_POSIX_H
14 #define SANITIZER_PLATFORM_LIMITS_POSIX_H
15 
16 #if SANITIZER_FREEBSD || SANITIZER_LINUX || SANITIZER_MAC
17 
18 #include "sanitizer_internal_defs.h"
19 #include "sanitizer_platform.h"
20 
21 #if SANITIZER_FREEBSD
22 // FreeBSD's dlopen() returns a pointer to an Obj_Entry structure that
23 // incorporates the map structure.
24 # define GET_LINK_MAP_BY_DLOPEN_HANDLE(handle) \
25     ((link_map*)((handle) == nullptr ? nullptr : ((char*)(handle) + 544)))
26 // Get sys/_types.h, because that tells us whether 64-bit inodes are
27 // used in struct dirent below.
28 #include <sys/_types.h>
29 #else
30 # define GET_LINK_MAP_BY_DLOPEN_HANDLE(handle) ((link_map*)(handle))
31 #endif  // !SANITIZER_FREEBSD
32 
33 #ifndef __GLIBC_PREREQ
34 #define __GLIBC_PREREQ(x, y) 0
35 #endif
36 
37 namespace __sanitizer {
38   extern unsigned struct_utsname_sz;
39   extern unsigned struct_stat_sz;
40 #if !SANITIZER_FREEBSD && !SANITIZER_IOS
41   extern unsigned struct_stat64_sz;
42 #endif
43   extern unsigned struct_rusage_sz;
44   extern unsigned siginfo_t_sz;
45   extern unsigned struct_itimerval_sz;
46   extern unsigned pthread_t_sz;
47   extern unsigned pthread_cond_t_sz;
48   extern unsigned pid_t_sz;
49   extern unsigned timeval_sz;
50   extern unsigned uid_t_sz;
51   extern unsigned gid_t_sz;
52   extern unsigned mbstate_t_sz;
53   extern unsigned struct_timezone_sz;
54   extern unsigned struct_tms_sz;
55   extern unsigned struct_itimerspec_sz;
56   extern unsigned struct_sigevent_sz;
57   extern unsigned struct_sched_param_sz;
58   extern unsigned struct_statfs64_sz;
59 
60 #if !SANITIZER_ANDROID
61   extern unsigned struct_statfs_sz;
62   extern unsigned struct_sockaddr_sz;
63   extern unsigned ucontext_t_sz;
64 #endif // !SANITIZER_ANDROID
65 
66 #if SANITIZER_LINUX
67 
68 #if defined(__x86_64__)
69   const unsigned struct_kernel_stat_sz = 144;
70   const unsigned struct_kernel_stat64_sz = 0;
71 #elif defined(__i386__)
72   const unsigned struct_kernel_stat_sz = 64;
73   const unsigned struct_kernel_stat64_sz = 96;
74 #elif defined(__arm__)
75   const unsigned struct_kernel_stat_sz = 64;
76   const unsigned struct_kernel_stat64_sz = 104;
77 #elif defined(__aarch64__)
78   const unsigned struct_kernel_stat_sz = 128;
79   const unsigned struct_kernel_stat64_sz = 104;
80 #elif defined(__powerpc__) && !defined(__powerpc64__)
81   const unsigned struct_kernel_stat_sz = 72;
82   const unsigned struct_kernel_stat64_sz = 104;
83 #elif defined(__powerpc64__)
84   const unsigned struct_kernel_stat_sz = 144;
85   const unsigned struct_kernel_stat64_sz = 104;
86 #elif defined(__mips__)
87   const unsigned struct_kernel_stat_sz =
88                  SANITIZER_ANDROID ? FIRST_32_SECOND_64(104, 128) :
89                                      FIRST_32_SECOND_64(160, 216);
90   const unsigned struct_kernel_stat64_sz = 104;
91 #elif defined(__s390__) && !defined(__s390x__)
92   const unsigned struct_kernel_stat_sz = 64;
93   const unsigned struct_kernel_stat64_sz = 104;
94 #elif defined(__s390x__)
95   const unsigned struct_kernel_stat_sz = 144;
96   const unsigned struct_kernel_stat64_sz = 0;
97 #elif defined(__sparc__) && defined(__arch64__)
98   const unsigned struct___old_kernel_stat_sz = 0;
99   const unsigned struct_kernel_stat_sz = 104;
100   const unsigned struct_kernel_stat64_sz = 144;
101 #elif defined(__sparc__) && !defined(__arch64__)
102   const unsigned struct___old_kernel_stat_sz = 0;
103   const unsigned struct_kernel_stat_sz = 64;
104   const unsigned struct_kernel_stat64_sz = 104;
105 #endif
106   struct __sanitizer_perf_event_attr {
107     unsigned type;
108     unsigned size;
109     // More fields that vary with the kernel version.
110   };
111 
112   extern unsigned struct_epoll_event_sz;
113   extern unsigned struct_sysinfo_sz;
114   extern unsigned __user_cap_header_struct_sz;
115   extern unsigned __user_cap_data_struct_sz;
116   extern unsigned struct_new_utsname_sz;
117   extern unsigned struct_old_utsname_sz;
118   extern unsigned struct_oldold_utsname_sz;
119 
120   const unsigned struct_kexec_segment_sz = 4 * sizeof(unsigned long);
121 #endif  // SANITIZER_LINUX
122 
123 #if SANITIZER_LINUX || SANITIZER_FREEBSD
124 
125 #if defined(__powerpc64__) || defined(__s390__)
126   const unsigned struct___old_kernel_stat_sz = 0;
127 #elif !defined(__sparc__)
128   const unsigned struct___old_kernel_stat_sz = 32;
129 #endif
130 
131   extern unsigned struct_rlimit_sz;
132   extern unsigned struct_utimbuf_sz;
133   extern unsigned struct_timespec_sz;
134 
135   struct __sanitizer_iocb {
136     u64   aio_data;
137     u32   aio_key_or_aio_reserved1; // Simply crazy.
138     u32   aio_reserved1_or_aio_key; // Luckily, we don't need these.
139     u16   aio_lio_opcode;
140     s16   aio_reqprio;
141     u32   aio_fildes;
142     u64   aio_buf;
143     u64   aio_nbytes;
144     s64   aio_offset;
145     u64   aio_reserved2;
146     u64   aio_reserved3;
147   };
148 
149   struct __sanitizer_io_event {
150     u64 data;
151     u64 obj;
152     u64 res;
153     u64 res2;
154   };
155 
156   const unsigned iocb_cmd_pread = 0;
157   const unsigned iocb_cmd_pwrite = 1;
158   const unsigned iocb_cmd_preadv = 7;
159   const unsigned iocb_cmd_pwritev = 8;
160 
161   struct __sanitizer___sysctl_args {
162     int *name;
163     int nlen;
164     void *oldval;
165     uptr *oldlenp;
166     void *newval;
167     uptr newlen;
168     unsigned long ___unused[4];
169   };
170 
171   const unsigned old_sigset_t_sz = sizeof(unsigned long);
172 
173   struct __sanitizer_sem_t {
174 #if SANITIZER_ANDROID && defined(_LP64)
175     int data[4];
176 #elif SANITIZER_ANDROID && !defined(_LP64)
177     int data;
178 #elif SANITIZER_LINUX
179     uptr data[4];
180 #elif SANITIZER_FREEBSD
181     u32 data[4];
182 #endif
183   };
184 #endif // SANITIZER_LINUX || SANITIZER_FREEBSD
185 
186 #if SANITIZER_ANDROID
187   struct __sanitizer_mallinfo {
188     uptr v[10];
189   };
190 #endif
191 
192 #if SANITIZER_LINUX && !SANITIZER_ANDROID
193   struct __sanitizer_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 #elif SANITIZER_FREEBSD
294   struct __sanitizer_ipc_perm {
295     unsigned int cuid;
296     unsigned int cgid;
297     unsigned int uid;
298     unsigned int gid;
299     unsigned short mode;
300     unsigned short seq;
301     long key;
302   };
303 
304   struct __sanitizer_shmid_ds {
305     __sanitizer_ipc_perm shm_perm;
306     unsigned long shm_segsz;
307     unsigned int shm_lpid;
308     unsigned int shm_cpid;
309     int shm_nattch;
310     unsigned long shm_atime;
311     unsigned long shm_dtime;
312     unsigned long shm_ctime;
313   };
314 #endif
315 
316 #if (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
317   extern unsigned struct_msqid_ds_sz;
318   extern unsigned struct_mq_attr_sz;
319   extern unsigned struct_timex_sz;
320   extern unsigned struct_statvfs_sz;
321 #endif  // (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
322 
323   struct __sanitizer_iovec {
324     void *iov_base;
325     uptr iov_len;
326   };
327 
328 #if !SANITIZER_ANDROID
329   struct __sanitizer_ifaddrs {
330     struct __sanitizer_ifaddrs *ifa_next;
331     char *ifa_name;
332     unsigned int ifa_flags;
333     void *ifa_addr;    // (struct sockaddr *)
334     void *ifa_netmask; // (struct sockaddr *)
335     // This is a union on Linux.
336 # ifdef ifa_dstaddr
337 # undef ifa_dstaddr
338 # endif
339     void *ifa_dstaddr; // (struct sockaddr *)
340     void *ifa_data;
341   };
342 #endif  // !SANITIZER_ANDROID
343 
344 #if SANITIZER_MAC
345   typedef unsigned long __sanitizer_pthread_key_t;
346 #else
347   typedef unsigned __sanitizer_pthread_key_t;
348 #endif
349 
350 #if SANITIZER_LINUX && !SANITIZER_ANDROID
351 
352   struct __sanitizer_XDR {
353     int x_op;
354     void *x_ops;
355     uptr x_public;
356     uptr x_private;
357     uptr x_base;
358     unsigned x_handy;
359   };
360 
361   const int __sanitizer_XDR_ENCODE = 0;
362   const int __sanitizer_XDR_DECODE = 1;
363   const int __sanitizer_XDR_FREE = 2;
364 #endif
365 
366   struct __sanitizer_passwd {
367     char *pw_name;
368     char *pw_passwd;
369     int pw_uid;
370     int pw_gid;
371 #if SANITIZER_MAC || SANITIZER_FREEBSD
372     long pw_change;
373     char *pw_class;
374 #endif
375 #if !(SANITIZER_ANDROID && (SANITIZER_WORDSIZE == 32))
376     char *pw_gecos;
377 #endif
378     char *pw_dir;
379     char *pw_shell;
380 #if SANITIZER_MAC || SANITIZER_FREEBSD
381     long pw_expire;
382 #endif
383 #if SANITIZER_FREEBSD
384     int pw_fields;
385 #endif
386   };
387 
388   struct __sanitizer_group {
389     char *gr_name;
390     char *gr_passwd;
391     int gr_gid;
392     char **gr_mem;
393   };
394 
395 #if defined(__x86_64__) && !defined(_LP64)
396   typedef long long __sanitizer_time_t;
397 #else
398   typedef long __sanitizer_time_t;
399 #endif
400 
401   struct __sanitizer_timeb {
402     __sanitizer_time_t time;
403     unsigned short millitm;
404     short timezone;
405     short dstflag;
406   };
407 
408   struct __sanitizer_ether_addr {
409     u8 octet[6];
410   };
411 
412   struct __sanitizer_tm {
413     int tm_sec;
414     int tm_min;
415     int tm_hour;
416     int tm_mday;
417     int tm_mon;
418     int tm_year;
419     int tm_wday;
420     int tm_yday;
421     int tm_isdst;
422     long int tm_gmtoff;
423     const char *tm_zone;
424   };
425 
426 #if SANITIZER_LINUX
427   struct __sanitizer_mntent {
428     char *mnt_fsname;
429     char *mnt_dir;
430     char *mnt_type;
431     char *mnt_opts;
432     int mnt_freq;
433     int mnt_passno;
434   };
435 #endif
436 
437 #if SANITIZER_MAC || SANITIZER_FREEBSD
438   struct __sanitizer_msghdr {
439     void *msg_name;
440     unsigned msg_namelen;
441     struct __sanitizer_iovec *msg_iov;
442     unsigned msg_iovlen;
443     void *msg_control;
444     unsigned msg_controllen;
445     int msg_flags;
446   };
447   struct __sanitizer_cmsghdr {
448     unsigned cmsg_len;
449     int cmsg_level;
450     int cmsg_type;
451   };
452 #else
453   struct __sanitizer_msghdr {
454     void *msg_name;
455     unsigned msg_namelen;
456     struct __sanitizer_iovec *msg_iov;
457     uptr msg_iovlen;
458     void *msg_control;
459     uptr msg_controllen;
460     int msg_flags;
461   };
462   struct __sanitizer_cmsghdr {
463     uptr cmsg_len;
464     int cmsg_level;
465     int cmsg_type;
466   };
467 #endif
468 
469 #if SANITIZER_MAC
470   struct __sanitizer_dirent {
471     unsigned long long d_ino;
472     unsigned long long d_seekoff;
473     unsigned short d_reclen;
474     // more fields that we don't care about
475   };
476 #elif SANITIZER_FREEBSD
477   struct __sanitizer_dirent {
478 #if defined(__INO64)
479     unsigned long long d_fileno;
480     unsigned long long d_off;
481 #else
482     unsigned int d_fileno;
483 #endif
484     unsigned short d_reclen;
485     // more fields that we don't care about
486   };
487 #elif SANITIZER_ANDROID || defined(__x86_64__)
488   struct __sanitizer_dirent {
489     unsigned long long d_ino;
490     unsigned long long d_off;
491     unsigned short d_reclen;
492     // more fields that we don't care about
493   };
494 #else
495   struct __sanitizer_dirent {
496     uptr d_ino;
497     uptr d_off;
498     unsigned short d_reclen;
499     // more fields that we don't care about
500   };
501 #endif
502 
503 #if SANITIZER_LINUX && !SANITIZER_ANDROID
504   struct __sanitizer_dirent64 {
505     unsigned long long d_ino;
506     unsigned long long d_off;
507     unsigned short d_reclen;
508     // more fields that we don't care about
509   };
510 #endif
511 
512 // 'clock_t' is 32 bits wide on x64 FreeBSD
513 #if SANITIZER_FREEBSD
514   typedef int __sanitizer_clock_t;
515 #elif defined(__x86_64__) && !defined(_LP64)
516   typedef long long __sanitizer_clock_t;
517 #else
518   typedef long __sanitizer_clock_t;
519 #endif
520 
521 #if SANITIZER_LINUX
522   typedef int __sanitizer_clockid_t;
523 #endif
524 
525 #if SANITIZER_LINUX || SANITIZER_FREEBSD
526 #if defined(_LP64) || defined(__x86_64__) || defined(__powerpc__)\
527                    || defined(__mips__)
528   typedef unsigned __sanitizer___kernel_uid_t;
529   typedef unsigned __sanitizer___kernel_gid_t;
530 #else
531   typedef unsigned short __sanitizer___kernel_uid_t;
532   typedef unsigned short __sanitizer___kernel_gid_t;
533 #endif
534 #if defined(__x86_64__) && !defined(_LP64)
535   typedef long long __sanitizer___kernel_off_t;
536 #else
537   typedef long __sanitizer___kernel_off_t;
538 #endif
539 
540 #if defined(__powerpc__) || defined(__mips__)
541   typedef unsigned int __sanitizer___kernel_old_uid_t;
542   typedef unsigned int __sanitizer___kernel_old_gid_t;
543 #else
544   typedef unsigned short __sanitizer___kernel_old_uid_t;
545   typedef unsigned short __sanitizer___kernel_old_gid_t;
546 #endif
547 
548   typedef long long __sanitizer___kernel_loff_t;
549   typedef struct {
550     unsigned long fds_bits[1024 / (8 * sizeof(long))];
551   } __sanitizer___kernel_fd_set;
552 #endif
553 
554   // This thing depends on the platform. We are only interested in the upper
555   // limit. Verified with a compiler assert in .cc.
556   const int pthread_attr_t_max_sz = 128;
557   union __sanitizer_pthread_attr_t {
558     char size[pthread_attr_t_max_sz]; // NOLINT
559     void *align;
560   };
561 
562 #if SANITIZER_ANDROID
563 # if SANITIZER_MIPS
564   typedef unsigned long __sanitizer_sigset_t[16/sizeof(unsigned long)];
565 # else
566   typedef unsigned long __sanitizer_sigset_t;
567 # endif
568 #elif SANITIZER_MAC
569   typedef unsigned __sanitizer_sigset_t;
570 #elif SANITIZER_LINUX
571   struct __sanitizer_sigset_t {
572     // The size is determined by looking at sizeof of real sigset_t on linux.
573     uptr val[128 / sizeof(uptr)];
574   };
575 #elif SANITIZER_FREEBSD
576   struct __sanitizer_sigset_t {
577      // uint32_t * 4
578      unsigned int __bits[4];
579   };
580 #endif
581 
582   // Linux system headers define the 'sa_handler' and 'sa_sigaction' macros.
583 #if SANITIZER_ANDROID && (SANITIZER_WORDSIZE == 64)
584   struct __sanitizer_sigaction {
585     unsigned sa_flags;
586     union {
587       void (*sigaction)(int sig, void *siginfo, void *uctx);
588       void (*handler)(int sig);
589     };
590     __sanitizer_sigset_t sa_mask;
591     void (*sa_restorer)();
592   };
593 #elif SANITIZER_ANDROID && SANITIZER_MIPS32  // check this before WORDSIZE == 32
594   struct __sanitizer_sigaction {
595     unsigned sa_flags;
596     union {
597       void (*sigaction)(int sig, void *siginfo, void *uctx);
598       void (*handler)(int sig);
599     };
600     __sanitizer_sigset_t sa_mask;
601   };
602 #elif SANITIZER_ANDROID && (SANITIZER_WORDSIZE == 32)
603   struct __sanitizer_sigaction {
604     union {
605       void (*sigaction)(int sig, void *siginfo, void *uctx);
606       void (*handler)(int sig);
607     };
608     __sanitizer_sigset_t sa_mask;
609     uptr sa_flags;
610     void (*sa_restorer)();
611   };
612 #else // !SANITIZER_ANDROID
613   struct __sanitizer_sigaction {
614 #if defined(__mips__) && !SANITIZER_FREEBSD
615     unsigned int sa_flags;
616 #endif
617     union {
618       void (*sigaction)(int sig, void *siginfo, void *uctx);
619       void (*handler)(int sig);
620     };
621 #if SANITIZER_FREEBSD
622     int sa_flags;
623     __sanitizer_sigset_t sa_mask;
624 #else
625 #if defined(__s390x__)
626     int sa_resv;
627 #else
628     __sanitizer_sigset_t sa_mask;
629 #endif
630 #ifndef __mips__
631 #if defined(__sparc__)
632 #if __GLIBC_PREREQ (2, 20)
633     // On sparc glibc 2.19 and earlier sa_flags was unsigned long.
634 #if defined(__arch64__)
635     // To maintain ABI compatibility on sparc64 when switching to an int,
636     // __glibc_reserved0 was added.
637     int __glibc_reserved0;
638 #endif
639     int sa_flags;
640 #else
641     unsigned long sa_flags;
642 #endif
643 #else
644     int sa_flags;
645 #endif
646 #endif
647 #endif
648 #if SANITIZER_LINUX
649     void (*sa_restorer)();
650 #endif
651 #if defined(__mips__) && (SANITIZER_WORDSIZE == 32)
652     int sa_resv[1];
653 #endif
654 #if defined(__s390x__)
655     __sanitizer_sigset_t sa_mask;
656 #endif
657   };
658 #endif // !SANITIZER_ANDROID
659 
660 #if SANITIZER_FREEBSD
661   typedef __sanitizer_sigset_t __sanitizer_kernel_sigset_t;
662 #elif defined(__mips__)
663   struct __sanitizer_kernel_sigset_t {
664     uptr sig[2];
665   };
666 #else
667   struct __sanitizer_kernel_sigset_t {
668     u8 sig[8];
669   };
670 #endif
671 
672   // Linux system headers define the 'sa_handler' and 'sa_sigaction' macros.
673 #if SANITIZER_MIPS
674   struct __sanitizer_kernel_sigaction_t {
675     unsigned int sa_flags;
676     union {
677       void (*handler)(int signo);
678       void (*sigaction)(int signo, void *info, void *ctx);
679     };
680     __sanitizer_kernel_sigset_t sa_mask;
681     void (*sa_restorer)(void);
682   };
683 #else
684   struct __sanitizer_kernel_sigaction_t {
685     union {
686       void (*handler)(int signo);
687       void (*sigaction)(int signo, void *info, void *ctx);
688     };
689     unsigned long sa_flags;
690     void (*sa_restorer)(void);
691     __sanitizer_kernel_sigset_t sa_mask;
692   };
693 #endif
694 
695   extern uptr sig_ign;
696   extern uptr sig_dfl;
697   extern uptr sa_siginfo;
698 
699 #if SANITIZER_LINUX
700   extern int e_tabsz;
701 #endif
702 
703   extern int af_inet;
704   extern int af_inet6;
705   uptr __sanitizer_in_addr_sz(int af);
706 
707 #if SANITIZER_LINUX || SANITIZER_FREEBSD
708   struct __sanitizer_dl_phdr_info {
709     uptr dlpi_addr;
710     const char *dlpi_name;
711     const void *dlpi_phdr;
712     short dlpi_phnum;
713   };
714 
715   extern unsigned struct_ElfW_Phdr_sz;
716 #endif
717 
718   struct __sanitizer_addrinfo {
719     int ai_flags;
720     int ai_family;
721     int ai_socktype;
722     int ai_protocol;
723 #if SANITIZER_ANDROID || SANITIZER_MAC || SANITIZER_FREEBSD
724     unsigned ai_addrlen;
725     char *ai_canonname;
726     void *ai_addr;
727 #else // LINUX
728     unsigned ai_addrlen;
729     void *ai_addr;
730     char *ai_canonname;
731 #endif
732     struct __sanitizer_addrinfo *ai_next;
733   };
734 
735   struct __sanitizer_hostent {
736     char *h_name;
737     char **h_aliases;
738     int h_addrtype;
739     int h_length;
740     char **h_addr_list;
741   };
742 
743   struct __sanitizer_pollfd {
744     int fd;
745     short events;
746     short revents;
747   };
748 
749 #if SANITIZER_ANDROID || SANITIZER_MAC || SANITIZER_FREEBSD
750   typedef unsigned __sanitizer_nfds_t;
751 #else
752   typedef unsigned long __sanitizer_nfds_t;
753 #endif
754 
755 #if !SANITIZER_ANDROID
756 # if SANITIZER_LINUX
757   struct __sanitizer_glob_t {
758     uptr gl_pathc;
759     char **gl_pathv;
760     uptr gl_offs;
761     int gl_flags;
762 
763     void (*gl_closedir)(void *dirp);
764     void *(*gl_readdir)(void *dirp);
765     void *(*gl_opendir)(const char *);
766     int (*gl_lstat)(const char *, void *);
767     int (*gl_stat)(const char *, void *);
768   };
769 # elif SANITIZER_FREEBSD
770   struct __sanitizer_glob_t {
771     uptr gl_pathc;
772     uptr gl_matchc;
773     uptr gl_offs;
774     int gl_flags;
775     char **gl_pathv;
776     int (*gl_errfunc)(const char*, int);
777     void (*gl_closedir)(void *dirp);
778     struct dirent *(*gl_readdir)(void *dirp);
779     void *(*gl_opendir)(const char*);
780     int (*gl_lstat)(const char*, void* /* struct stat* */);
781     int (*gl_stat)(const char*, void* /* struct stat* */);
782   };
783 # endif  // SANITIZER_FREEBSD
784 
785 # if SANITIZER_LINUX || SANITIZER_FREEBSD
786   extern int glob_nomatch;
787   extern int glob_altdirfunc;
788 # endif
789 #endif  // !SANITIZER_ANDROID
790 
791   extern unsigned path_max;
792 
793   struct __sanitizer_wordexp_t {
794     uptr we_wordc;
795     char **we_wordv;
796     uptr we_offs;
797 #if SANITIZER_FREEBSD
798     char *we_strings;
799     uptr we_nbytes;
800 #endif
801   };
802 
803 #if SANITIZER_LINUX && !SANITIZER_ANDROID
804   struct __sanitizer_FILE {
805     int _flags;
806     char *_IO_read_ptr;
807     char *_IO_read_end;
808     char *_IO_read_base;
809     char *_IO_write_base;
810     char *_IO_write_ptr;
811     char *_IO_write_end;
812     char *_IO_buf_base;
813     char *_IO_buf_end;
814     char *_IO_save_base;
815     char *_IO_backup_base;
816     char *_IO_save_end;
817     void *_markers;
818     __sanitizer_FILE *_chain;
819     int _fileno;
820   };
821 # define SANITIZER_HAS_STRUCT_FILE 1
822 #else
823   typedef void __sanitizer_FILE;
824 # define SANITIZER_HAS_STRUCT_FILE 0
825 #endif
826 
827 #if SANITIZER_LINUX && !SANITIZER_ANDROID && \
828   (defined(__i386) || defined(__x86_64) || defined(__mips64) || \
829     defined(__powerpc64__) || defined(__aarch64__) || defined(__arm__) || \
830     defined(__s390__))
831   extern unsigned struct_user_regs_struct_sz;
832   extern unsigned struct_user_fpregs_struct_sz;
833   extern unsigned struct_user_fpxregs_struct_sz;
834   extern unsigned struct_user_vfpregs_struct_sz;
835 
836   extern int ptrace_peektext;
837   extern int ptrace_peekdata;
838   extern int ptrace_peekuser;
839   extern int ptrace_getregs;
840   extern int ptrace_setregs;
841   extern int ptrace_getfpregs;
842   extern int ptrace_setfpregs;
843   extern int ptrace_getfpxregs;
844   extern int ptrace_setfpxregs;
845   extern int ptrace_getvfpregs;
846   extern int ptrace_setvfpregs;
847   extern int ptrace_getsiginfo;
848   extern int ptrace_setsiginfo;
849   extern int ptrace_getregset;
850   extern int ptrace_setregset;
851   extern int ptrace_geteventmsg;
852 #endif
853 
854 #if (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
855   extern unsigned struct_shminfo_sz;
856   extern unsigned struct_shm_info_sz;
857   extern int shmctl_ipc_stat;
858   extern int shmctl_ipc_info;
859   extern int shmctl_shm_info;
860   extern int shmctl_shm_stat;
861 #endif
862 
863 #if !SANITIZER_MAC && !SANITIZER_FREEBSD
864   extern unsigned struct_utmp_sz;
865 #endif
866 #if !SANITIZER_ANDROID
867   extern unsigned struct_utmpx_sz;
868 #endif
869 
870   extern int map_fixed;
871 
872   // ioctl arguments
873   struct __sanitizer_ifconf {
874     int ifc_len;
875     union {
876       void *ifcu_req;
877     } ifc_ifcu;
878 #if SANITIZER_MAC
879   } __attribute__((packed));
880 #else
881   };
882 #endif
883 
884 #if SANITIZER_LINUX && !SANITIZER_ANDROID
885 struct __sanitizer__obstack_chunk {
886   char *limit;
887   struct __sanitizer__obstack_chunk *prev;
888 };
889 
890 struct __sanitizer_obstack {
891   long chunk_size;
892   struct __sanitizer__obstack_chunk *chunk;
893   char *object_base;
894   char *next_free;
895   uptr more_fields[7];
896 };
897 
898 typedef uptr (*__sanitizer_cookie_io_read)(void *cookie, char *buf, uptr size);
899 typedef uptr (*__sanitizer_cookie_io_write)(void *cookie, const char *buf,
900                                             uptr size);
901 typedef int (*__sanitizer_cookie_io_seek)(void *cookie, u64 *offset,
902                                           int whence);
903 typedef int (*__sanitizer_cookie_io_close)(void *cookie);
904 
905 struct __sanitizer_cookie_io_functions_t {
906   __sanitizer_cookie_io_read read;
907   __sanitizer_cookie_io_write write;
908   __sanitizer_cookie_io_seek seek;
909   __sanitizer_cookie_io_close close;
910 };
911 #endif
912 
913 #define IOC_NRBITS 8
914 #define IOC_TYPEBITS 8
915 #if defined(__powerpc__) || defined(__powerpc64__) || defined(__mips__) || \
916     defined(__sparc__)
917 #define IOC_SIZEBITS 13
918 #define IOC_DIRBITS 3
919 #define IOC_NONE 1U
920 #define IOC_WRITE 4U
921 #define IOC_READ 2U
922 #else
923 #define IOC_SIZEBITS 14
924 #define IOC_DIRBITS 2
925 #define IOC_NONE 0U
926 #define IOC_WRITE 1U
927 #define IOC_READ 2U
928 #endif
929 #define IOC_NRMASK ((1 << IOC_NRBITS) - 1)
930 #define IOC_TYPEMASK ((1 << IOC_TYPEBITS) - 1)
931 #define IOC_SIZEMASK ((1 << IOC_SIZEBITS) - 1)
932 #if defined(IOC_DIRMASK)
933 #undef IOC_DIRMASK
934 #endif
935 #define IOC_DIRMASK ((1 << IOC_DIRBITS) - 1)
936 #define IOC_NRSHIFT 0
937 #define IOC_TYPESHIFT (IOC_NRSHIFT + IOC_NRBITS)
938 #define IOC_SIZESHIFT (IOC_TYPESHIFT + IOC_TYPEBITS)
939 #define IOC_DIRSHIFT (IOC_SIZESHIFT + IOC_SIZEBITS)
940 #define EVIOC_EV_MAX 0x1f
941 #define EVIOC_ABS_MAX 0x3f
942 
943 #define IOC_DIR(nr) (((nr) >> IOC_DIRSHIFT) & IOC_DIRMASK)
944 #define IOC_TYPE(nr) (((nr) >> IOC_TYPESHIFT) & IOC_TYPEMASK)
945 #define IOC_NR(nr) (((nr) >> IOC_NRSHIFT) & IOC_NRMASK)
946 
947 #if defined(__sparc__)
948 // In sparc the 14 bits SIZE field overlaps with the
949 // least significant bit of DIR, so either IOC_READ or
950 // IOC_WRITE shall be 1 in order to get a non-zero SIZE.
951 #define IOC_SIZE(nr) \
952   ((((((nr) >> 29) & 0x7) & (4U | 2U)) == 0) ? 0 : (((nr) >> 16) & 0x3fff))
953 #else
954 #define IOC_SIZE(nr) (((nr) >> IOC_SIZESHIFT) & IOC_SIZEMASK)
955 #endif
956 
957   extern unsigned struct_ifreq_sz;
958   extern unsigned struct_termios_sz;
959   extern unsigned struct_winsize_sz;
960 
961 #if SANITIZER_LINUX
962   extern unsigned struct_arpreq_sz;
963   extern unsigned struct_cdrom_msf_sz;
964   extern unsigned struct_cdrom_multisession_sz;
965   extern unsigned struct_cdrom_read_audio_sz;
966   extern unsigned struct_cdrom_subchnl_sz;
967   extern unsigned struct_cdrom_ti_sz;
968   extern unsigned struct_cdrom_tocentry_sz;
969   extern unsigned struct_cdrom_tochdr_sz;
970   extern unsigned struct_cdrom_volctrl_sz;
971   extern unsigned struct_ff_effect_sz;
972   extern unsigned struct_floppy_drive_params_sz;
973   extern unsigned struct_floppy_drive_struct_sz;
974   extern unsigned struct_floppy_fdc_state_sz;
975   extern unsigned struct_floppy_max_errors_sz;
976   extern unsigned struct_floppy_raw_cmd_sz;
977   extern unsigned struct_floppy_struct_sz;
978   extern unsigned struct_floppy_write_errors_sz;
979   extern unsigned struct_format_descr_sz;
980   extern unsigned struct_hd_driveid_sz;
981   extern unsigned struct_hd_geometry_sz;
982   extern unsigned struct_input_absinfo_sz;
983   extern unsigned struct_input_id_sz;
984   extern unsigned struct_mtpos_sz;
985   extern unsigned struct_termio_sz;
986   extern unsigned struct_vt_consize_sz;
987   extern unsigned struct_vt_sizes_sz;
988   extern unsigned struct_vt_stat_sz;
989 #endif  // SANITIZER_LINUX
990 
991 #if SANITIZER_LINUX || SANITIZER_FREEBSD
992   extern unsigned struct_copr_buffer_sz;
993   extern unsigned struct_copr_debug_buf_sz;
994   extern unsigned struct_copr_msg_sz;
995   extern unsigned struct_midi_info_sz;
996   extern unsigned struct_mtget_sz;
997   extern unsigned struct_mtop_sz;
998   extern unsigned struct_rtentry_sz;
999   extern unsigned struct_sbi_instrument_sz;
1000   extern unsigned struct_seq_event_rec_sz;
1001   extern unsigned struct_synth_info_sz;
1002   extern unsigned struct_vt_mode_sz;
1003 #endif // SANITIZER_LINUX || SANITIZER_FREEBSD
1004 
1005 #if SANITIZER_LINUX && !SANITIZER_ANDROID
1006   extern unsigned struct_ax25_parms_struct_sz;
1007   extern unsigned struct_cyclades_monitor_sz;
1008   extern unsigned struct_input_keymap_entry_sz;
1009   extern unsigned struct_ipx_config_data_sz;
1010   extern unsigned struct_kbdiacrs_sz;
1011   extern unsigned struct_kbentry_sz;
1012   extern unsigned struct_kbkeycode_sz;
1013   extern unsigned struct_kbsentry_sz;
1014   extern unsigned struct_mtconfiginfo_sz;
1015   extern unsigned struct_nr_parms_struct_sz;
1016   extern unsigned struct_scc_modem_sz;
1017   extern unsigned struct_scc_stat_sz;
1018   extern unsigned struct_serial_multiport_struct_sz;
1019   extern unsigned struct_serial_struct_sz;
1020   extern unsigned struct_sockaddr_ax25_sz;
1021   extern unsigned struct_unimapdesc_sz;
1022   extern unsigned struct_unimapinit_sz;
1023 #endif  // SANITIZER_LINUX && !SANITIZER_ANDROID
1024 
1025 #if (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
1026   extern unsigned struct_audio_buf_info_sz;
1027   extern unsigned struct_ppp_stats_sz;
1028 #endif  // (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
1029 
1030 #if !SANITIZER_ANDROID && !SANITIZER_MAC
1031   extern unsigned struct_sioc_sg_req_sz;
1032   extern unsigned struct_sioc_vif_req_sz;
1033 #endif
1034 
1035   // ioctl request identifiers
1036 
1037   // A special value to mark ioctls that are not present on the target platform,
1038   // when it can not be determined without including any system headers.
1039   extern const unsigned IOCTL_NOT_PRESENT;
1040 
1041   extern unsigned IOCTL_FIOASYNC;
1042   extern unsigned IOCTL_FIOCLEX;
1043   extern unsigned IOCTL_FIOGETOWN;
1044   extern unsigned IOCTL_FIONBIO;
1045   extern unsigned IOCTL_FIONCLEX;
1046   extern unsigned IOCTL_FIOSETOWN;
1047   extern unsigned IOCTL_SIOCADDMULTI;
1048   extern unsigned IOCTL_SIOCATMARK;
1049   extern unsigned IOCTL_SIOCDELMULTI;
1050   extern unsigned IOCTL_SIOCGIFADDR;
1051   extern unsigned IOCTL_SIOCGIFBRDADDR;
1052   extern unsigned IOCTL_SIOCGIFCONF;
1053   extern unsigned IOCTL_SIOCGIFDSTADDR;
1054   extern unsigned IOCTL_SIOCGIFFLAGS;
1055   extern unsigned IOCTL_SIOCGIFMETRIC;
1056   extern unsigned IOCTL_SIOCGIFMTU;
1057   extern unsigned IOCTL_SIOCGIFNETMASK;
1058   extern unsigned IOCTL_SIOCGPGRP;
1059   extern unsigned IOCTL_SIOCSIFADDR;
1060   extern unsigned IOCTL_SIOCSIFBRDADDR;
1061   extern unsigned IOCTL_SIOCSIFDSTADDR;
1062   extern unsigned IOCTL_SIOCSIFFLAGS;
1063   extern unsigned IOCTL_SIOCSIFMETRIC;
1064   extern unsigned IOCTL_SIOCSIFMTU;
1065   extern unsigned IOCTL_SIOCSIFNETMASK;
1066   extern unsigned IOCTL_SIOCSPGRP;
1067   extern unsigned IOCTL_TIOCCONS;
1068   extern unsigned IOCTL_TIOCEXCL;
1069   extern unsigned IOCTL_TIOCGETD;
1070   extern unsigned IOCTL_TIOCGPGRP;
1071   extern unsigned IOCTL_TIOCGWINSZ;
1072   extern unsigned IOCTL_TIOCMBIC;
1073   extern unsigned IOCTL_TIOCMBIS;
1074   extern unsigned IOCTL_TIOCMGET;
1075   extern unsigned IOCTL_TIOCMSET;
1076   extern unsigned IOCTL_TIOCNOTTY;
1077   extern unsigned IOCTL_TIOCNXCL;
1078   extern unsigned IOCTL_TIOCOUTQ;
1079   extern unsigned IOCTL_TIOCPKT;
1080   extern unsigned IOCTL_TIOCSCTTY;
1081   extern unsigned IOCTL_TIOCSETD;
1082   extern unsigned IOCTL_TIOCSPGRP;
1083   extern unsigned IOCTL_TIOCSTI;
1084   extern unsigned IOCTL_TIOCSWINSZ;
1085 #if (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
1086   extern unsigned IOCTL_SIOCGETSGCNT;
1087   extern unsigned IOCTL_SIOCGETVIFCNT;
1088 #endif
1089 #if SANITIZER_LINUX
1090   extern unsigned IOCTL_EVIOCGABS;
1091   extern unsigned IOCTL_EVIOCGBIT;
1092   extern unsigned IOCTL_EVIOCGEFFECTS;
1093   extern unsigned IOCTL_EVIOCGID;
1094   extern unsigned IOCTL_EVIOCGKEY;
1095   extern unsigned IOCTL_EVIOCGKEYCODE;
1096   extern unsigned IOCTL_EVIOCGLED;
1097   extern unsigned IOCTL_EVIOCGNAME;
1098   extern unsigned IOCTL_EVIOCGPHYS;
1099   extern unsigned IOCTL_EVIOCGRAB;
1100   extern unsigned IOCTL_EVIOCGREP;
1101   extern unsigned IOCTL_EVIOCGSND;
1102   extern unsigned IOCTL_EVIOCGSW;
1103   extern unsigned IOCTL_EVIOCGUNIQ;
1104   extern unsigned IOCTL_EVIOCGVERSION;
1105   extern unsigned IOCTL_EVIOCRMFF;
1106   extern unsigned IOCTL_EVIOCSABS;
1107   extern unsigned IOCTL_EVIOCSFF;
1108   extern unsigned IOCTL_EVIOCSKEYCODE;
1109   extern unsigned IOCTL_EVIOCSREP;
1110   extern unsigned IOCTL_BLKFLSBUF;
1111   extern unsigned IOCTL_BLKGETSIZE;
1112   extern unsigned IOCTL_BLKRAGET;
1113   extern unsigned IOCTL_BLKRASET;
1114   extern unsigned IOCTL_BLKROGET;
1115   extern unsigned IOCTL_BLKROSET;
1116   extern unsigned IOCTL_BLKRRPART;
1117   extern unsigned IOCTL_CDROMAUDIOBUFSIZ;
1118   extern unsigned IOCTL_CDROMEJECT;
1119   extern unsigned IOCTL_CDROMEJECT_SW;
1120   extern unsigned IOCTL_CDROMMULTISESSION;
1121   extern unsigned IOCTL_CDROMPAUSE;
1122   extern unsigned IOCTL_CDROMPLAYMSF;
1123   extern unsigned IOCTL_CDROMPLAYTRKIND;
1124   extern unsigned IOCTL_CDROMREADAUDIO;
1125   extern unsigned IOCTL_CDROMREADCOOKED;
1126   extern unsigned IOCTL_CDROMREADMODE1;
1127   extern unsigned IOCTL_CDROMREADMODE2;
1128   extern unsigned IOCTL_CDROMREADRAW;
1129   extern unsigned IOCTL_CDROMREADTOCENTRY;
1130   extern unsigned IOCTL_CDROMREADTOCHDR;
1131   extern unsigned IOCTL_CDROMRESET;
1132   extern unsigned IOCTL_CDROMRESUME;
1133   extern unsigned IOCTL_CDROMSEEK;
1134   extern unsigned IOCTL_CDROMSTART;
1135   extern unsigned IOCTL_CDROMSTOP;
1136   extern unsigned IOCTL_CDROMSUBCHNL;
1137   extern unsigned IOCTL_CDROMVOLCTRL;
1138   extern unsigned IOCTL_CDROMVOLREAD;
1139   extern unsigned IOCTL_CDROM_GET_UPC;
1140   extern unsigned IOCTL_FDCLRPRM;
1141   extern unsigned IOCTL_FDDEFPRM;
1142   extern unsigned IOCTL_FDFLUSH;
1143   extern unsigned IOCTL_FDFMTBEG;
1144   extern unsigned IOCTL_FDFMTEND;
1145   extern unsigned IOCTL_FDFMTTRK;
1146   extern unsigned IOCTL_FDGETDRVPRM;
1147   extern unsigned IOCTL_FDGETDRVSTAT;
1148   extern unsigned IOCTL_FDGETDRVTYP;
1149   extern unsigned IOCTL_FDGETFDCSTAT;
1150   extern unsigned IOCTL_FDGETMAXERRS;
1151   extern unsigned IOCTL_FDGETPRM;
1152   extern unsigned IOCTL_FDMSGOFF;
1153   extern unsigned IOCTL_FDMSGON;
1154   extern unsigned IOCTL_FDPOLLDRVSTAT;
1155   extern unsigned IOCTL_FDRAWCMD;
1156   extern unsigned IOCTL_FDRESET;
1157   extern unsigned IOCTL_FDSETDRVPRM;
1158   extern unsigned IOCTL_FDSETEMSGTRESH;
1159   extern unsigned IOCTL_FDSETMAXERRS;
1160   extern unsigned IOCTL_FDSETPRM;
1161   extern unsigned IOCTL_FDTWADDLE;
1162   extern unsigned IOCTL_FDWERRORCLR;
1163   extern unsigned IOCTL_FDWERRORGET;
1164   extern unsigned IOCTL_HDIO_DRIVE_CMD;
1165   extern unsigned IOCTL_HDIO_GETGEO;
1166   extern unsigned IOCTL_HDIO_GET_32BIT;
1167   extern unsigned IOCTL_HDIO_GET_DMA;
1168   extern unsigned IOCTL_HDIO_GET_IDENTITY;
1169   extern unsigned IOCTL_HDIO_GET_KEEPSETTINGS;
1170   extern unsigned IOCTL_HDIO_GET_MULTCOUNT;
1171   extern unsigned IOCTL_HDIO_GET_NOWERR;
1172   extern unsigned IOCTL_HDIO_GET_UNMASKINTR;
1173   extern unsigned IOCTL_HDIO_SET_32BIT;
1174   extern unsigned IOCTL_HDIO_SET_DMA;
1175   extern unsigned IOCTL_HDIO_SET_KEEPSETTINGS;
1176   extern unsigned IOCTL_HDIO_SET_MULTCOUNT;
1177   extern unsigned IOCTL_HDIO_SET_NOWERR;
1178   extern unsigned IOCTL_HDIO_SET_UNMASKINTR;
1179   extern unsigned IOCTL_MTIOCPOS;
1180   extern unsigned IOCTL_PPPIOCGASYNCMAP;
1181   extern unsigned IOCTL_PPPIOCGDEBUG;
1182   extern unsigned IOCTL_PPPIOCGFLAGS;
1183   extern unsigned IOCTL_PPPIOCGUNIT;
1184   extern unsigned IOCTL_PPPIOCGXASYNCMAP;
1185   extern unsigned IOCTL_PPPIOCSASYNCMAP;
1186   extern unsigned IOCTL_PPPIOCSDEBUG;
1187   extern unsigned IOCTL_PPPIOCSFLAGS;
1188   extern unsigned IOCTL_PPPIOCSMAXCID;
1189   extern unsigned IOCTL_PPPIOCSMRU;
1190   extern unsigned IOCTL_PPPIOCSXASYNCMAP;
1191   extern unsigned IOCTL_SIOCDARP;
1192   extern unsigned IOCTL_SIOCDRARP;
1193   extern unsigned IOCTL_SIOCGARP;
1194   extern unsigned IOCTL_SIOCGIFENCAP;
1195   extern unsigned IOCTL_SIOCGIFHWADDR;
1196   extern unsigned IOCTL_SIOCGIFMAP;
1197   extern unsigned IOCTL_SIOCGIFMEM;
1198   extern unsigned IOCTL_SIOCGIFNAME;
1199   extern unsigned IOCTL_SIOCGIFSLAVE;
1200   extern unsigned IOCTL_SIOCGRARP;
1201   extern unsigned IOCTL_SIOCGSTAMP;
1202   extern unsigned IOCTL_SIOCSARP;
1203   extern unsigned IOCTL_SIOCSIFENCAP;
1204   extern unsigned IOCTL_SIOCSIFHWADDR;
1205   extern unsigned IOCTL_SIOCSIFLINK;
1206   extern unsigned IOCTL_SIOCSIFMAP;
1207   extern unsigned IOCTL_SIOCSIFMEM;
1208   extern unsigned IOCTL_SIOCSIFSLAVE;
1209   extern unsigned IOCTL_SIOCSRARP;
1210   extern unsigned IOCTL_SNDCTL_COPR_HALT;
1211   extern unsigned IOCTL_SNDCTL_COPR_LOAD;
1212   extern unsigned IOCTL_SNDCTL_COPR_RCODE;
1213   extern unsigned IOCTL_SNDCTL_COPR_RCVMSG;
1214   extern unsigned IOCTL_SNDCTL_COPR_RDATA;
1215   extern unsigned IOCTL_SNDCTL_COPR_RESET;
1216   extern unsigned IOCTL_SNDCTL_COPR_RUN;
1217   extern unsigned IOCTL_SNDCTL_COPR_SENDMSG;
1218   extern unsigned IOCTL_SNDCTL_COPR_WCODE;
1219   extern unsigned IOCTL_SNDCTL_COPR_WDATA;
1220   extern unsigned IOCTL_TCFLSH;
1221   extern unsigned IOCTL_TCGETA;
1222   extern unsigned IOCTL_TCGETS;
1223   extern unsigned IOCTL_TCSBRK;
1224   extern unsigned IOCTL_TCSBRKP;
1225   extern unsigned IOCTL_TCSETA;
1226   extern unsigned IOCTL_TCSETAF;
1227   extern unsigned IOCTL_TCSETAW;
1228   extern unsigned IOCTL_TCSETS;
1229   extern unsigned IOCTL_TCSETSF;
1230   extern unsigned IOCTL_TCSETSW;
1231   extern unsigned IOCTL_TCXONC;
1232   extern unsigned IOCTL_TIOCGLCKTRMIOS;
1233   extern unsigned IOCTL_TIOCGSOFTCAR;
1234   extern unsigned IOCTL_TIOCINQ;
1235   extern unsigned IOCTL_TIOCLINUX;
1236   extern unsigned IOCTL_TIOCSERCONFIG;
1237   extern unsigned IOCTL_TIOCSERGETLSR;
1238   extern unsigned IOCTL_TIOCSERGWILD;
1239   extern unsigned IOCTL_TIOCSERSWILD;
1240   extern unsigned IOCTL_TIOCSLCKTRMIOS;
1241   extern unsigned IOCTL_TIOCSSOFTCAR;
1242   extern unsigned IOCTL_VT_DISALLOCATE;
1243   extern unsigned IOCTL_VT_GETSTATE;
1244   extern unsigned IOCTL_VT_RESIZE;
1245   extern unsigned IOCTL_VT_RESIZEX;
1246   extern unsigned IOCTL_VT_SENDSIG;
1247 #endif  // SANITIZER_LINUX
1248 #if SANITIZER_LINUX || SANITIZER_FREEBSD
1249   extern unsigned IOCTL_MTIOCGET;
1250   extern unsigned IOCTL_MTIOCTOP;
1251   extern unsigned IOCTL_SIOCADDRT;
1252   extern unsigned IOCTL_SIOCDELRT;
1253   extern unsigned IOCTL_SNDCTL_DSP_GETBLKSIZE;
1254   extern unsigned IOCTL_SNDCTL_DSP_GETFMTS;
1255   extern unsigned IOCTL_SNDCTL_DSP_NONBLOCK;
1256   extern unsigned IOCTL_SNDCTL_DSP_POST;
1257   extern unsigned IOCTL_SNDCTL_DSP_RESET;
1258   extern unsigned IOCTL_SNDCTL_DSP_SETFMT;
1259   extern unsigned IOCTL_SNDCTL_DSP_SETFRAGMENT;
1260   extern unsigned IOCTL_SNDCTL_DSP_SPEED;
1261   extern unsigned IOCTL_SNDCTL_DSP_STEREO;
1262   extern unsigned IOCTL_SNDCTL_DSP_SUBDIVIDE;
1263   extern unsigned IOCTL_SNDCTL_DSP_SYNC;
1264   extern unsigned IOCTL_SNDCTL_FM_4OP_ENABLE;
1265   extern unsigned IOCTL_SNDCTL_FM_LOAD_INSTR;
1266   extern unsigned IOCTL_SNDCTL_MIDI_INFO;
1267   extern unsigned IOCTL_SNDCTL_MIDI_PRETIME;
1268   extern unsigned IOCTL_SNDCTL_SEQ_CTRLRATE;
1269   extern unsigned IOCTL_SNDCTL_SEQ_GETINCOUNT;
1270   extern unsigned IOCTL_SNDCTL_SEQ_GETOUTCOUNT;
1271   extern unsigned IOCTL_SNDCTL_SEQ_NRMIDIS;
1272   extern unsigned IOCTL_SNDCTL_SEQ_NRSYNTHS;
1273   extern unsigned IOCTL_SNDCTL_SEQ_OUTOFBAND;
1274   extern unsigned IOCTL_SNDCTL_SEQ_PANIC;
1275   extern unsigned IOCTL_SNDCTL_SEQ_PERCMODE;
1276   extern unsigned IOCTL_SNDCTL_SEQ_RESET;
1277   extern unsigned IOCTL_SNDCTL_SEQ_RESETSAMPLES;
1278   extern unsigned IOCTL_SNDCTL_SEQ_SYNC;
1279   extern unsigned IOCTL_SNDCTL_SEQ_TESTMIDI;
1280   extern unsigned IOCTL_SNDCTL_SEQ_THRESHOLD;
1281   extern unsigned IOCTL_SNDCTL_SYNTH_INFO;
1282   extern unsigned IOCTL_SNDCTL_SYNTH_MEMAVL;
1283   extern unsigned IOCTL_SNDCTL_TMR_CONTINUE;
1284   extern unsigned IOCTL_SNDCTL_TMR_METRONOME;
1285   extern unsigned IOCTL_SNDCTL_TMR_SELECT;
1286   extern unsigned IOCTL_SNDCTL_TMR_SOURCE;
1287   extern unsigned IOCTL_SNDCTL_TMR_START;
1288   extern unsigned IOCTL_SNDCTL_TMR_STOP;
1289   extern unsigned IOCTL_SNDCTL_TMR_TEMPO;
1290   extern unsigned IOCTL_SNDCTL_TMR_TIMEBASE;
1291   extern unsigned IOCTL_SOUND_MIXER_READ_ALTPCM;
1292   extern unsigned IOCTL_SOUND_MIXER_READ_BASS;
1293   extern unsigned IOCTL_SOUND_MIXER_READ_CAPS;
1294   extern unsigned IOCTL_SOUND_MIXER_READ_CD;
1295   extern unsigned IOCTL_SOUND_MIXER_READ_DEVMASK;
1296   extern unsigned IOCTL_SOUND_MIXER_READ_ENHANCE;
1297   extern unsigned IOCTL_SOUND_MIXER_READ_IGAIN;
1298   extern unsigned IOCTL_SOUND_MIXER_READ_IMIX;
1299   extern unsigned IOCTL_SOUND_MIXER_READ_LINE1;
1300   extern unsigned IOCTL_SOUND_MIXER_READ_LINE2;
1301   extern unsigned IOCTL_SOUND_MIXER_READ_LINE3;
1302   extern unsigned IOCTL_SOUND_MIXER_READ_LINE;
1303   extern unsigned IOCTL_SOUND_MIXER_READ_LOUD;
1304   extern unsigned IOCTL_SOUND_MIXER_READ_MIC;
1305   extern unsigned IOCTL_SOUND_MIXER_READ_MUTE;
1306   extern unsigned IOCTL_SOUND_MIXER_READ_OGAIN;
1307   extern unsigned IOCTL_SOUND_MIXER_READ_PCM;
1308   extern unsigned IOCTL_SOUND_MIXER_READ_RECLEV;
1309   extern unsigned IOCTL_SOUND_MIXER_READ_RECMASK;
1310   extern unsigned IOCTL_SOUND_MIXER_READ_RECSRC;
1311   extern unsigned IOCTL_SOUND_MIXER_READ_SPEAKER;
1312   extern unsigned IOCTL_SOUND_MIXER_READ_STEREODEVS;
1313   extern unsigned IOCTL_SOUND_MIXER_READ_SYNTH;
1314   extern unsigned IOCTL_SOUND_MIXER_READ_TREBLE;
1315   extern unsigned IOCTL_SOUND_MIXER_READ_VOLUME;
1316   extern unsigned IOCTL_SOUND_MIXER_WRITE_ALTPCM;
1317   extern unsigned IOCTL_SOUND_MIXER_WRITE_BASS;
1318   extern unsigned IOCTL_SOUND_MIXER_WRITE_CD;
1319   extern unsigned IOCTL_SOUND_MIXER_WRITE_ENHANCE;
1320   extern unsigned IOCTL_SOUND_MIXER_WRITE_IGAIN;
1321   extern unsigned IOCTL_SOUND_MIXER_WRITE_IMIX;
1322   extern unsigned IOCTL_SOUND_MIXER_WRITE_LINE1;
1323   extern unsigned IOCTL_SOUND_MIXER_WRITE_LINE2;
1324   extern unsigned IOCTL_SOUND_MIXER_WRITE_LINE3;
1325   extern unsigned IOCTL_SOUND_MIXER_WRITE_LINE;
1326   extern unsigned IOCTL_SOUND_MIXER_WRITE_LOUD;
1327   extern unsigned IOCTL_SOUND_MIXER_WRITE_MIC;
1328   extern unsigned IOCTL_SOUND_MIXER_WRITE_MUTE;
1329   extern unsigned IOCTL_SOUND_MIXER_WRITE_OGAIN;
1330   extern unsigned IOCTL_SOUND_MIXER_WRITE_PCM;
1331   extern unsigned IOCTL_SOUND_MIXER_WRITE_RECLEV;
1332   extern unsigned IOCTL_SOUND_MIXER_WRITE_RECSRC;
1333   extern unsigned IOCTL_SOUND_MIXER_WRITE_SPEAKER;
1334   extern unsigned IOCTL_SOUND_MIXER_WRITE_SYNTH;
1335   extern unsigned IOCTL_SOUND_MIXER_WRITE_TREBLE;
1336   extern unsigned IOCTL_SOUND_MIXER_WRITE_VOLUME;
1337   extern unsigned IOCTL_SOUND_PCM_READ_BITS;
1338   extern unsigned IOCTL_SOUND_PCM_READ_CHANNELS;
1339   extern unsigned IOCTL_SOUND_PCM_READ_FILTER;
1340   extern unsigned IOCTL_SOUND_PCM_READ_RATE;
1341   extern unsigned IOCTL_SOUND_PCM_WRITE_CHANNELS;
1342   extern unsigned IOCTL_SOUND_PCM_WRITE_FILTER;
1343   extern unsigned IOCTL_VT_ACTIVATE;
1344   extern unsigned IOCTL_VT_GETMODE;
1345   extern unsigned IOCTL_VT_OPENQRY;
1346   extern unsigned IOCTL_VT_RELDISP;
1347   extern unsigned IOCTL_VT_SETMODE;
1348   extern unsigned IOCTL_VT_WAITACTIVE;
1349 #endif  // SANITIZER_LINUX || SANITIZER_FREEBSD
1350 
1351 #if SANITIZER_LINUX && !SANITIZER_ANDROID
1352   extern unsigned IOCTL_CYGETDEFTHRESH;
1353   extern unsigned IOCTL_CYGETDEFTIMEOUT;
1354   extern unsigned IOCTL_CYGETMON;
1355   extern unsigned IOCTL_CYGETTHRESH;
1356   extern unsigned IOCTL_CYGETTIMEOUT;
1357   extern unsigned IOCTL_CYSETDEFTHRESH;
1358   extern unsigned IOCTL_CYSETDEFTIMEOUT;
1359   extern unsigned IOCTL_CYSETTHRESH;
1360   extern unsigned IOCTL_CYSETTIMEOUT;
1361   extern unsigned IOCTL_EQL_EMANCIPATE;
1362   extern unsigned IOCTL_EQL_ENSLAVE;
1363   extern unsigned IOCTL_EQL_GETMASTRCFG;
1364   extern unsigned IOCTL_EQL_GETSLAVECFG;
1365   extern unsigned IOCTL_EQL_SETMASTRCFG;
1366   extern unsigned IOCTL_EQL_SETSLAVECFG;
1367   extern unsigned IOCTL_EVIOCGKEYCODE_V2;
1368   extern unsigned IOCTL_EVIOCGPROP;
1369   extern unsigned IOCTL_EVIOCSKEYCODE_V2;
1370   extern unsigned IOCTL_FS_IOC_GETFLAGS;
1371   extern unsigned IOCTL_FS_IOC_GETVERSION;
1372   extern unsigned IOCTL_FS_IOC_SETFLAGS;
1373   extern unsigned IOCTL_FS_IOC_SETVERSION;
1374   extern unsigned IOCTL_GIO_CMAP;
1375   extern unsigned IOCTL_GIO_FONT;
1376   extern unsigned IOCTL_GIO_UNIMAP;
1377   extern unsigned IOCTL_GIO_UNISCRNMAP;
1378   extern unsigned IOCTL_KDADDIO;
1379   extern unsigned IOCTL_KDDELIO;
1380   extern unsigned IOCTL_KDGETKEYCODE;
1381   extern unsigned IOCTL_KDGKBDIACR;
1382   extern unsigned IOCTL_KDGKBENT;
1383   extern unsigned IOCTL_KDGKBLED;
1384   extern unsigned IOCTL_KDGKBMETA;
1385   extern unsigned IOCTL_KDGKBSENT;
1386   extern unsigned IOCTL_KDMAPDISP;
1387   extern unsigned IOCTL_KDSETKEYCODE;
1388   extern unsigned IOCTL_KDSIGACCEPT;
1389   extern unsigned IOCTL_KDSKBDIACR;
1390   extern unsigned IOCTL_KDSKBENT;
1391   extern unsigned IOCTL_KDSKBLED;
1392   extern unsigned IOCTL_KDSKBMETA;
1393   extern unsigned IOCTL_KDSKBSENT;
1394   extern unsigned IOCTL_KDUNMAPDISP;
1395   extern unsigned IOCTL_LPABORT;
1396   extern unsigned IOCTL_LPABORTOPEN;
1397   extern unsigned IOCTL_LPCAREFUL;
1398   extern unsigned IOCTL_LPCHAR;
1399   extern unsigned IOCTL_LPGETIRQ;
1400   extern unsigned IOCTL_LPGETSTATUS;
1401   extern unsigned IOCTL_LPRESET;
1402   extern unsigned IOCTL_LPSETIRQ;
1403   extern unsigned IOCTL_LPTIME;
1404   extern unsigned IOCTL_LPWAIT;
1405   extern unsigned IOCTL_MTIOCGETCONFIG;
1406   extern unsigned IOCTL_MTIOCSETCONFIG;
1407   extern unsigned IOCTL_PIO_CMAP;
1408   extern unsigned IOCTL_PIO_FONT;
1409   extern unsigned IOCTL_PIO_UNIMAP;
1410   extern unsigned IOCTL_PIO_UNIMAPCLR;
1411   extern unsigned IOCTL_PIO_UNISCRNMAP;
1412   extern unsigned IOCTL_SCSI_IOCTL_GET_IDLUN;
1413   extern unsigned IOCTL_SCSI_IOCTL_PROBE_HOST;
1414   extern unsigned IOCTL_SCSI_IOCTL_TAGGED_DISABLE;
1415   extern unsigned IOCTL_SCSI_IOCTL_TAGGED_ENABLE;
1416   extern unsigned IOCTL_SIOCAIPXITFCRT;
1417   extern unsigned IOCTL_SIOCAIPXPRISLT;
1418   extern unsigned IOCTL_SIOCAX25ADDUID;
1419   extern unsigned IOCTL_SIOCAX25DELUID;
1420   extern unsigned IOCTL_SIOCAX25GETPARMS;
1421   extern unsigned IOCTL_SIOCAX25GETUID;
1422   extern unsigned IOCTL_SIOCAX25NOUID;
1423   extern unsigned IOCTL_SIOCAX25SETPARMS;
1424   extern unsigned IOCTL_SIOCDEVPLIP;
1425   extern unsigned IOCTL_SIOCIPXCFGDATA;
1426   extern unsigned IOCTL_SIOCNRDECOBS;
1427   extern unsigned IOCTL_SIOCNRGETPARMS;
1428   extern unsigned IOCTL_SIOCNRRTCTL;
1429   extern unsigned IOCTL_SIOCNRSETPARMS;
1430   extern unsigned IOCTL_SNDCTL_DSP_GETISPACE;
1431   extern unsigned IOCTL_SNDCTL_DSP_GETOSPACE;
1432   extern unsigned IOCTL_TIOCGSERIAL;
1433   extern unsigned IOCTL_TIOCSERGETMULTI;
1434   extern unsigned IOCTL_TIOCSERSETMULTI;
1435   extern unsigned IOCTL_TIOCSSERIAL;
1436 #endif  // SANITIZER_LINUX && !SANITIZER_ANDROID
1437 
1438 #if (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
1439   extern unsigned IOCTL_GIO_SCRNMAP;
1440   extern unsigned IOCTL_KDDISABIO;
1441   extern unsigned IOCTL_KDENABIO;
1442   extern unsigned IOCTL_KDGETLED;
1443   extern unsigned IOCTL_KDGETMODE;
1444   extern unsigned IOCTL_KDGKBMODE;
1445   extern unsigned IOCTL_KDGKBTYPE;
1446   extern unsigned IOCTL_KDMKTONE;
1447   extern unsigned IOCTL_KDSETLED;
1448   extern unsigned IOCTL_KDSETMODE;
1449   extern unsigned IOCTL_KDSKBMODE;
1450   extern unsigned IOCTL_KIOCSOUND;
1451   extern unsigned IOCTL_PIO_SCRNMAP;
1452 #endif
1453 
1454   extern const int si_SEGV_MAPERR;
1455   extern const int si_SEGV_ACCERR;
1456 }  // namespace __sanitizer
1457 
1458 #define CHECK_TYPE_SIZE(TYPE) \
1459   COMPILER_CHECK(sizeof(__sanitizer_##TYPE) == sizeof(TYPE))
1460 
1461 #define CHECK_SIZE_AND_OFFSET(CLASS, MEMBER)                       \
1462   COMPILER_CHECK(sizeof(((__sanitizer_##CLASS *) NULL)->MEMBER) == \
1463                  sizeof(((CLASS *) NULL)->MEMBER));                \
1464   COMPILER_CHECK(offsetof(__sanitizer_##CLASS, MEMBER) ==          \
1465                  offsetof(CLASS, MEMBER))
1466 
1467 // For sigaction, which is a function and struct at the same time,
1468 // and thus requires explicit "struct" in sizeof() expression.
1469 #define CHECK_STRUCT_SIZE_AND_OFFSET(CLASS, MEMBER)                       \
1470   COMPILER_CHECK(sizeof(((struct __sanitizer_##CLASS *) NULL)->MEMBER) == \
1471                  sizeof(((struct CLASS *) NULL)->MEMBER));                \
1472   COMPILER_CHECK(offsetof(struct __sanitizer_##CLASS, MEMBER) ==          \
1473                  offsetof(struct CLASS, MEMBER))
1474 
1475 #endif  // SANITIZER_FREEBSD || SANITIZER_LINUX || SANITIZER_MAC
1476 
1477 #endif
1478