1//===-- sanitizer_platform_limits_posix.cpp -------------------------------===//
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#if defined(__linux__) || defined(__APPLE__)
15// Tests in this file assume that off_t-dependent data structures match the
16// libc ABI. For example, struct dirent here is what readdir() function (as
17// exported from libc) returns, and not the user-facing "dirent", which
18// depends on _FILE_OFFSET_BITS setting.
19// To get this "true" dirent definition, we undefine _FILE_OFFSET_BITS below.
20#undef _FILE_OFFSET_BITS
21#undef _TIME_BITS
22#endif
23
24// Must go after undef _FILE_OFFSET_BITS.
25#include "sanitizer_platform.h"
26
27#if SANITIZER_LINUX || SANITIZER_APPLE
28// Must go after undef _FILE_OFFSET_BITS.
29#include "sanitizer_glibc_version.h"
30
31#include <arpa/inet.h>
32#include <dirent.h>
33#include <grp.h>
34#include <limits.h>
35#include <net/if.h>
36#include <netdb.h>
37#include <poll.h>
38#include <pthread.h>
39#include <pwd.h>
40#include <signal.h>
41#include <stddef.h>
42#include <stdio.h>
43#include <sys/mman.h>
44#include <sys/resource.h>
45#include <sys/socket.h>
46#include <sys/stat.h>
47#include <sys/time.h>
48#include <sys/times.h>
49#include <sys/types.h>
50#include <sys/utsname.h>
51#include <termios.h>
52#include <time.h>
53#include <wchar.h>
54#include <regex.h>
55#if !SANITIZER_APPLE
56#include <utmp.h>
57#endif
58
59#if !SANITIZER_IOS
60#include <net/route.h>
61#endif
62
63#if !SANITIZER_ANDROID
64#include <sys/mount.h>
65#include <sys/timeb.h>
66#include <utmpx.h>
67#endif
68
69#if SANITIZER_LINUX
70#include <malloc.h>
71#include <mntent.h>
72#include <netinet/ether.h>
73#include <sys/sysinfo.h>
74#include <sys/vt.h>
75#include <linux/cdrom.h>
76#include <linux/fd.h>
77#if SANITIZER_ANDROID
78#include <linux/fs.h>
79#endif
80#include <linux/hdreg.h>
81#include <linux/input.h>
82#include <linux/ioctl.h>
83#include <linux/soundcard.h>
84#include <linux/sysctl.h>
85#include <linux/utsname.h>
86#include <linux/posix_types.h>
87#include <net/if_arp.h>
88#endif
89
90#if SANITIZER_IOS
91#undef IOC_DIRMASK
92#endif
93
94#if SANITIZER_LINUX
95# include <utime.h>
96# include <sys/ptrace.h>
97#    if defined(__mips64) || defined(__aarch64__) || defined(__arm__) || \
98        defined(__hexagon__) || defined(__loongarch__) ||SANITIZER_RISCV64
99#      include <asm/ptrace.h>
100#      ifdef __arm__
101typedef struct user_fpregs elf_fpregset_t;
102#   define ARM_VFPREGS_SIZE_ASAN (32 * 8 /*fpregs*/ + 4 /*fpscr*/)
103#   if !defined(ARM_VFPREGS_SIZE)
104#     define ARM_VFPREGS_SIZE ARM_VFPREGS_SIZE_ASAN
105#   endif
106#  endif
107# endif
108# include <semaphore.h>
109#endif
110
111#if !SANITIZER_ANDROID
112#include <ifaddrs.h>
113#include <sys/ucontext.h>
114#include <wordexp.h>
115#endif
116
117#if SANITIZER_LINUX
118#if SANITIZER_GLIBC
119#include <fstab.h>
120#include <net/if_ppp.h>
121#include <netax25/ax25.h>
122#include <netipx/ipx.h>
123#include <netrom/netrom.h>
124#include <obstack.h>
125#if HAVE_RPC_XDR_H
126# include <rpc/xdr.h>
127#endif
128#include <scsi/scsi.h>
129#else
130#include <linux/if_ppp.h>
131#include <linux/kd.h>
132#include <linux/ppp_defs.h>
133#endif  // SANITIZER_GLIBC
134
135#if SANITIZER_ANDROID
136#include <linux/mtio.h>
137#else
138#include <glob.h>
139#include <mqueue.h>
140#include <sys/kd.h>
141#include <sys/mtio.h>
142#include <sys/shm.h>
143#include <sys/statvfs.h>
144#include <sys/timex.h>
145#if defined(__mips64)
146# include <sys/procfs.h>
147#endif
148#include <sys/user.h>
149#include <linux/if_eql.h>
150#include <linux/if_plip.h>
151#include <linux/lp.h>
152#include <linux/mroute.h>
153#include <linux/mroute6.h>
154#include <linux/scc.h>
155#include <linux/serial.h>
156#include <sys/msg.h>
157#include <sys/ipc.h>
158#endif  // SANITIZER_ANDROID
159
160#include <link.h>
161#include <sys/vfs.h>
162#include <sys/epoll.h>
163#include <linux/capability.h>
164#else
165#include <fstab.h>
166#endif // SANITIZER_LINUX
167
168#if SANITIZER_APPLE
169#include <net/ethernet.h>
170#include <sys/filio.h>
171#include <sys/sockio.h>
172#endif
173
174// Include these after system headers to avoid name clashes and ambiguities.
175#  include "sanitizer_common.h"
176#  include "sanitizer_internal_defs.h"
177#  include "sanitizer_platform_interceptors.h"
178#  include "sanitizer_platform_limits_posix.h"
179
180namespace __sanitizer {
181  unsigned struct_utsname_sz = sizeof(struct utsname);
182  unsigned struct_stat_sz = sizeof(struct stat);
183#if SANITIZER_HAS_STAT64
184  unsigned struct_stat64_sz = sizeof(struct stat64);
185#endif // SANITIZER_HAS_STAT64
186  unsigned struct_rusage_sz = sizeof(struct rusage);
187  unsigned struct_tm_sz = sizeof(struct tm);
188  unsigned struct_passwd_sz = sizeof(struct passwd);
189  unsigned struct_group_sz = sizeof(struct group);
190  unsigned siginfo_t_sz = sizeof(siginfo_t);
191  unsigned struct_sigaction_sz = sizeof(struct sigaction);
192  unsigned struct_stack_t_sz = sizeof(stack_t);
193  unsigned struct_itimerval_sz = sizeof(struct itimerval);
194  unsigned pthread_t_sz = sizeof(pthread_t);
195  unsigned pthread_mutex_t_sz = sizeof(pthread_mutex_t);
196  unsigned pthread_cond_t_sz = sizeof(pthread_cond_t);
197  unsigned pid_t_sz = sizeof(pid_t);
198  unsigned timeval_sz = sizeof(timeval);
199  unsigned uid_t_sz = sizeof(uid_t);
200  unsigned gid_t_sz = sizeof(gid_t);
201  unsigned mbstate_t_sz = sizeof(mbstate_t);
202  unsigned sigset_t_sz = sizeof(sigset_t);
203  unsigned struct_timezone_sz = sizeof(struct timezone);
204  unsigned struct_tms_sz = sizeof(struct tms);
205  unsigned struct_sigevent_sz = sizeof(struct sigevent);
206  unsigned struct_sched_param_sz = sizeof(struct sched_param);
207  unsigned struct_regex_sz = sizeof(regex_t);
208  unsigned struct_regmatch_sz = sizeof(regmatch_t);
209
210#if SANITIZER_HAS_STATFS64
211  unsigned struct_statfs64_sz = sizeof(struct statfs64);
212#endif // SANITIZER_HAS_STATFS64
213
214#if SANITIZER_GLIBC || SANITIZER_FREEBSD || SANITIZER_NETBSD || SANITIZER_APPLE
215  unsigned struct_fstab_sz = sizeof(struct fstab);
216#endif  // SANITIZER_GLIBC || SANITIZER_FREEBSD || SANITIZER_NETBSD ||
217        // SANITIZER_APPLE
218#if !SANITIZER_ANDROID
219  unsigned struct_statfs_sz = sizeof(struct statfs);
220  unsigned struct_sockaddr_sz = sizeof(struct sockaddr);
221
222  unsigned ucontext_t_sz(void *ctx) {
223#    if SANITIZER_GLIBC && SANITIZER_X64
224    // Added in Linux kernel 3.4.0, merged to glibc in 2.16
225#      ifndef FP_XSTATE_MAGIC1
226#        define FP_XSTATE_MAGIC1 0x46505853U
227#      endif
228    // See kernel arch/x86/kernel/fpu/signal.c for details.
229    const auto *fpregs = static_cast<ucontext_t *>(ctx)->uc_mcontext.fpregs;
230    // The member names differ across header versions, but the actual layout
231    // is always the same.  So avoid using members, just use arithmetic.
232    const uint32_t *after_xmm =
233        reinterpret_cast<const uint32_t *>(fpregs + 1) - 24;
234    if (after_xmm[12] == FP_XSTATE_MAGIC1)
235      return reinterpret_cast<const char *>(fpregs) + after_xmm[13] -
236             static_cast<const char *>(ctx);
237#    endif
238    return sizeof(ucontext_t);
239  }
240#  endif  // !SANITIZER_ANDROID
241
242#  if SANITIZER_LINUX
243  unsigned struct_epoll_event_sz = sizeof(struct epoll_event);
244  unsigned struct_sysinfo_sz = sizeof(struct sysinfo);
245  unsigned __user_cap_header_struct_sz =
246      sizeof(struct __user_cap_header_struct);
247  unsigned __user_cap_data_struct_sz(void *hdrp) {
248    int u32s = 0;
249    if (hdrp) {
250      switch (((struct __user_cap_header_struct *)hdrp)->version) {
251      case _LINUX_CAPABILITY_VERSION_1:
252        u32s = _LINUX_CAPABILITY_U32S_1;
253        break;
254      case _LINUX_CAPABILITY_VERSION_2:
255        u32s = _LINUX_CAPABILITY_U32S_2;
256        break;
257      case _LINUX_CAPABILITY_VERSION_3:
258        u32s = _LINUX_CAPABILITY_U32S_3;
259        break;
260      }
261    }
262    return sizeof(struct __user_cap_data_struct) * u32s;
263  }
264  unsigned struct_new_utsname_sz = sizeof(struct new_utsname);
265  unsigned struct_old_utsname_sz = sizeof(struct old_utsname);
266  unsigned struct_oldold_utsname_sz = sizeof(struct oldold_utsname);
267#endif // SANITIZER_LINUX
268
269#if SANITIZER_LINUX
270  unsigned struct_rlimit_sz = sizeof(struct rlimit);
271  unsigned struct_timespec_sz = sizeof(struct timespec);
272  unsigned struct_utimbuf_sz = sizeof(struct utimbuf);
273  unsigned struct_itimerspec_sz = sizeof(struct itimerspec);
274#endif // SANITIZER_LINUX
275
276#if SANITIZER_GLIBC
277  // Use pre-computed size of struct ustat to avoid <sys/ustat.h> which
278  // has been removed from glibc 2.28.
279#if defined(__aarch64__) || defined(__s390x__) || defined(__mips64) ||     \
280    defined(__powerpc64__) || defined(__arch64__) || defined(__sparcv9) || \
281    defined(__x86_64__) || SANITIZER_RISCV64
282#define SIZEOF_STRUCT_USTAT 32
283#    elif defined(__arm__) || defined(__i386__) || defined(__mips__) ||    \
284        defined(__powerpc__) || defined(__s390__) || defined(__sparc__) || \
285        defined(__hexagon__)
286#      define SIZEOF_STRUCT_USTAT 20
287#    elif defined(__loongarch__)
288  // Not used. The minimum Glibc version available for LoongArch is 2.36
289  // so ustat() wrapper is already gone.
290#      define SIZEOF_STRUCT_USTAT 0
291#    else
292#      error Unknown size of struct ustat
293#    endif
294  unsigned struct_ustat_sz = SIZEOF_STRUCT_USTAT;
295  unsigned struct_rlimit64_sz = sizeof(struct rlimit64);
296  unsigned struct_statvfs64_sz = sizeof(struct statvfs64);
297#endif // SANITIZER_GLIBC
298
299#if SANITIZER_LINUX && !SANITIZER_ANDROID
300  unsigned struct_timex_sz = sizeof(struct timex);
301  unsigned struct_msqid_ds_sz = sizeof(struct msqid_ds);
302  unsigned struct_mq_attr_sz = sizeof(struct mq_attr);
303  unsigned struct_statvfs_sz = sizeof(struct statvfs);
304#endif // SANITIZER_LINUX && !SANITIZER_ANDROID
305
306  const uptr sig_ign = (uptr)SIG_IGN;
307  const uptr sig_dfl = (uptr)SIG_DFL;
308  const uptr sig_err = (uptr)SIG_ERR;
309  const uptr sa_siginfo = (uptr)SA_SIGINFO;
310
311#if SANITIZER_LINUX
312  int e_tabsz = (int)E_TABSZ;
313#endif
314
315
316#if SANITIZER_LINUX && !SANITIZER_ANDROID
317  unsigned struct_shminfo_sz = sizeof(struct shminfo);
318  unsigned struct_shm_info_sz = sizeof(struct shm_info);
319  int shmctl_ipc_stat = (int)IPC_STAT;
320  int shmctl_ipc_info = (int)IPC_INFO;
321  int shmctl_shm_info = (int)SHM_INFO;
322  int shmctl_shm_stat = (int)SHM_STAT;
323#endif
324
325#if !SANITIZER_APPLE && !SANITIZER_FREEBSD
326  unsigned struct_utmp_sz = sizeof(struct utmp);
327#endif
328#if !SANITIZER_ANDROID
329  unsigned struct_utmpx_sz = sizeof(struct utmpx);
330#endif
331
332  int map_fixed = MAP_FIXED;
333
334  int af_inet = (int)AF_INET;
335  int af_inet6 = (int)AF_INET6;
336
337  uptr __sanitizer_in_addr_sz(int af) {
338    if (af == AF_INET)
339      return sizeof(struct in_addr);
340    else if (af == AF_INET6)
341      return sizeof(struct in6_addr);
342    else
343      return 0;
344  }
345
346#if SANITIZER_LINUX
347unsigned struct_ElfW_Phdr_sz = sizeof(ElfW(Phdr));
348#elif SANITIZER_FREEBSD
349unsigned struct_ElfW_Phdr_sz = sizeof(Elf_Phdr);
350#endif
351
352#if SANITIZER_GLIBC
353  int glob_nomatch = GLOB_NOMATCH;
354  int glob_altdirfunc = GLOB_ALTDIRFUNC;
355#endif
356
357#  if !SANITIZER_ANDROID
358  const int wordexp_wrde_dooffs = WRDE_DOOFFS;
359#  endif  // !SANITIZER_ANDROID
360
361#if SANITIZER_LINUX && !SANITIZER_ANDROID &&                               \
362    (defined(__i386) || defined(__x86_64) || defined(__mips64) ||          \
363     defined(__powerpc64__) || defined(__aarch64__) || defined(__arm__) || \
364     defined(__s390__) || defined(__loongarch__)|| SANITIZER_RISCV64)
365#if defined(__mips64) || defined(__powerpc64__) || defined(__arm__)
366  unsigned struct_user_regs_struct_sz = sizeof(struct pt_regs);
367  unsigned struct_user_fpregs_struct_sz = sizeof(elf_fpregset_t);
368#elif SANITIZER_RISCV64
369  unsigned struct_user_regs_struct_sz = sizeof(struct user_regs_struct);
370  unsigned struct_user_fpregs_struct_sz = sizeof(struct __riscv_q_ext_state);
371#elif defined(__aarch64__)
372  unsigned struct_user_regs_struct_sz = sizeof(struct user_pt_regs);
373  unsigned struct_user_fpregs_struct_sz = sizeof(struct user_fpsimd_state);
374#elif defined(__loongarch__)
375  unsigned struct_user_regs_struct_sz = sizeof(struct user_pt_regs);
376  unsigned struct_user_fpregs_struct_sz = sizeof(struct user_fp_state);
377#elif defined(__s390__)
378  unsigned struct_user_regs_struct_sz = sizeof(struct _user_regs_struct);
379  unsigned struct_user_fpregs_struct_sz = sizeof(struct _user_fpregs_struct);
380#else
381  unsigned struct_user_regs_struct_sz = sizeof(struct user_regs_struct);
382  unsigned struct_user_fpregs_struct_sz = sizeof(struct user_fpregs_struct);
383#endif // __mips64 || __powerpc64__ || __aarch64__ || __loongarch__
384#if defined(__x86_64) || defined(__mips64) || defined(__powerpc64__) || \
385    defined(__aarch64__) || defined(__arm__) || defined(__s390__) ||    \
386    defined(__loongarch__) || SANITIZER_RISCV64
387  unsigned struct_user_fpxregs_struct_sz = 0;
388#else
389  unsigned struct_user_fpxregs_struct_sz = sizeof(struct user_fpxregs_struct);
390#endif // __x86_64 || __mips64 || __powerpc64__ || __aarch64__ || __arm__
391// || __s390__ || __loongarch__
392#ifdef __arm__
393  unsigned struct_user_vfpregs_struct_sz = ARM_VFPREGS_SIZE;
394#else
395  unsigned struct_user_vfpregs_struct_sz = 0;
396#endif
397
398  int ptrace_peektext = PTRACE_PEEKTEXT;
399  int ptrace_peekdata = PTRACE_PEEKDATA;
400  int ptrace_peekuser = PTRACE_PEEKUSER;
401#if (defined(PTRACE_GETREGS) && defined(PTRACE_SETREGS)) || \
402    (defined(PT_GETREGS) && defined(PT_SETREGS))
403  int ptrace_getregs = PTRACE_GETREGS;
404  int ptrace_setregs = PTRACE_SETREGS;
405#else
406  int ptrace_getregs = -1;
407  int ptrace_setregs = -1;
408#endif
409#if (defined(PTRACE_GETFPREGS) && defined(PTRACE_SETFPREGS)) || \
410    (defined(PT_GETFPREGS) && defined(PT_SETFPREGS))
411  int ptrace_getfpregs = PTRACE_GETFPREGS;
412  int ptrace_setfpregs = PTRACE_SETFPREGS;
413#else
414  int ptrace_getfpregs = -1;
415  int ptrace_setfpregs = -1;
416#endif
417#if (defined(PTRACE_GETFPXREGS) && defined(PTRACE_SETFPXREGS)) || \
418    (defined(PT_GETFPXREGS) && defined(PT_SETFPXREGS))
419  int ptrace_getfpxregs = PTRACE_GETFPXREGS;
420  int ptrace_setfpxregs = PTRACE_SETFPXREGS;
421#else
422  int ptrace_getfpxregs = -1;
423  int ptrace_setfpxregs = -1;
424#endif // PTRACE_GETFPXREGS/PTRACE_SETFPXREGS
425#if defined(PTRACE_GETVFPREGS) && defined(PTRACE_SETVFPREGS)
426  int ptrace_getvfpregs = PTRACE_GETVFPREGS;
427  int ptrace_setvfpregs = PTRACE_SETVFPREGS;
428#else
429  int ptrace_getvfpregs = -1;
430  int ptrace_setvfpregs = -1;
431#endif
432  int ptrace_geteventmsg = PTRACE_GETEVENTMSG;
433#if (defined(PTRACE_GETSIGINFO) && defined(PTRACE_SETSIGINFO)) ||              \
434    (defined(PT_GETSIGINFO) && defined(PT_SETSIGINFO))
435  int ptrace_getsiginfo = PTRACE_GETSIGINFO;
436  int ptrace_setsiginfo = PTRACE_SETSIGINFO;
437#else
438  int ptrace_getsiginfo = -1;
439  int ptrace_setsiginfo = -1;
440#endif // PTRACE_GETSIGINFO/PTRACE_SETSIGINFO
441#if defined(PTRACE_GETREGSET) && defined(PTRACE_SETREGSET)
442  int ptrace_getregset = PTRACE_GETREGSET;
443  int ptrace_setregset = PTRACE_SETREGSET;
444#else
445  int ptrace_getregset = -1;
446  int ptrace_setregset = -1;
447#endif // PTRACE_GETREGSET/PTRACE_SETREGSET
448#endif
449
450  unsigned path_max = PATH_MAX;
451
452  // ioctl arguments
453  unsigned struct_ifreq_sz = sizeof(struct ifreq);
454  unsigned struct_termios_sz = sizeof(struct termios);
455  unsigned struct_winsize_sz = sizeof(struct winsize);
456
457#if SANITIZER_LINUX
458  unsigned struct_arpreq_sz = sizeof(struct arpreq);
459  unsigned struct_cdrom_msf_sz = sizeof(struct cdrom_msf);
460  unsigned struct_cdrom_multisession_sz = sizeof(struct cdrom_multisession);
461  unsigned struct_cdrom_read_audio_sz = sizeof(struct cdrom_read_audio);
462  unsigned struct_cdrom_subchnl_sz = sizeof(struct cdrom_subchnl);
463  unsigned struct_cdrom_ti_sz = sizeof(struct cdrom_ti);
464  unsigned struct_cdrom_tocentry_sz = sizeof(struct cdrom_tocentry);
465  unsigned struct_cdrom_tochdr_sz = sizeof(struct cdrom_tochdr);
466  unsigned struct_cdrom_volctrl_sz = sizeof(struct cdrom_volctrl);
467  unsigned struct_ff_effect_sz = sizeof(struct ff_effect);
468  unsigned struct_floppy_drive_params_sz = sizeof(struct floppy_drive_params);
469  unsigned struct_floppy_drive_struct_sz = sizeof(struct floppy_drive_struct);
470  unsigned struct_floppy_fdc_state_sz = sizeof(struct floppy_fdc_state);
471  unsigned struct_floppy_max_errors_sz = sizeof(struct floppy_max_errors);
472  unsigned struct_floppy_raw_cmd_sz = sizeof(struct floppy_raw_cmd);
473  unsigned struct_floppy_struct_sz = sizeof(struct floppy_struct);
474  unsigned struct_floppy_write_errors_sz = sizeof(struct floppy_write_errors);
475  unsigned struct_format_descr_sz = sizeof(struct format_descr);
476  unsigned struct_hd_driveid_sz = sizeof(struct hd_driveid);
477  unsigned struct_hd_geometry_sz = sizeof(struct hd_geometry);
478  unsigned struct_input_absinfo_sz = sizeof(struct input_absinfo);
479  unsigned struct_input_id_sz = sizeof(struct input_id);
480  unsigned struct_mtpos_sz = sizeof(struct mtpos);
481  unsigned struct_rtentry_sz = sizeof(struct rtentry);
482#if SANITIZER_GLIBC || SANITIZER_ANDROID
483  unsigned struct_termio_sz = sizeof(struct termio);
484#endif
485  unsigned struct_vt_consize_sz = sizeof(struct vt_consize);
486  unsigned struct_vt_sizes_sz = sizeof(struct vt_sizes);
487  unsigned struct_vt_stat_sz = sizeof(struct vt_stat);
488#endif // SANITIZER_LINUX
489
490#if SANITIZER_LINUX
491#if SOUND_VERSION >= 0x040000
492  unsigned struct_copr_buffer_sz = 0;
493  unsigned struct_copr_debug_buf_sz = 0;
494  unsigned struct_copr_msg_sz = 0;
495#else
496  unsigned struct_copr_buffer_sz = sizeof(struct copr_buffer);
497  unsigned struct_copr_debug_buf_sz = sizeof(struct copr_debug_buf);
498  unsigned struct_copr_msg_sz = sizeof(struct copr_msg);
499#endif
500  unsigned struct_midi_info_sz = sizeof(struct midi_info);
501  unsigned struct_mtget_sz = sizeof(struct mtget);
502  unsigned struct_mtop_sz = sizeof(struct mtop);
503  unsigned struct_sbi_instrument_sz = sizeof(struct sbi_instrument);
504  unsigned struct_seq_event_rec_sz = sizeof(struct seq_event_rec);
505  unsigned struct_synth_info_sz = sizeof(struct synth_info);
506  unsigned struct_vt_mode_sz = sizeof(struct vt_mode);
507#endif // SANITIZER_LINUX
508
509#if SANITIZER_GLIBC
510  unsigned struct_ax25_parms_struct_sz = sizeof(struct ax25_parms_struct);
511#if EV_VERSION > (0x010000)
512  unsigned struct_input_keymap_entry_sz = sizeof(struct input_keymap_entry);
513#else
514  unsigned struct_input_keymap_entry_sz = 0;
515#endif
516  unsigned struct_ipx_config_data_sz = sizeof(struct ipx_config_data);
517  unsigned struct_kbdiacrs_sz = sizeof(struct kbdiacrs);
518  unsigned struct_kbentry_sz = sizeof(struct kbentry);
519  unsigned struct_kbkeycode_sz = sizeof(struct kbkeycode);
520  unsigned struct_kbsentry_sz = sizeof(struct kbsentry);
521  unsigned struct_mtconfiginfo_sz = sizeof(struct mtconfiginfo);
522  unsigned struct_nr_parms_struct_sz = sizeof(struct nr_parms_struct);
523  unsigned struct_scc_modem_sz = sizeof(struct scc_modem);
524  unsigned struct_scc_stat_sz = sizeof(struct scc_stat);
525  unsigned struct_serial_multiport_struct_sz
526      = sizeof(struct serial_multiport_struct);
527  unsigned struct_serial_struct_sz = sizeof(struct serial_struct);
528  unsigned struct_sockaddr_ax25_sz = sizeof(struct sockaddr_ax25);
529  unsigned struct_unimapdesc_sz = sizeof(struct unimapdesc);
530  unsigned struct_unimapinit_sz = sizeof(struct unimapinit);
531
532  unsigned struct_audio_buf_info_sz = sizeof(struct audio_buf_info);
533  unsigned struct_ppp_stats_sz = sizeof(struct ppp_stats);
534#endif  // SANITIZER_GLIBC
535
536#if !SANITIZER_ANDROID && !SANITIZER_APPLE
537  unsigned struct_sioc_sg_req_sz = sizeof(struct sioc_sg_req);
538  unsigned struct_sioc_vif_req_sz = sizeof(struct sioc_vif_req);
539#endif
540
541  const unsigned long __sanitizer_bufsiz = BUFSIZ;
542
543  const unsigned IOCTL_NOT_PRESENT = 0;
544
545  unsigned IOCTL_FIOASYNC = FIOASYNC;
546  unsigned IOCTL_FIOCLEX = FIOCLEX;
547  unsigned IOCTL_FIOGETOWN = FIOGETOWN;
548  unsigned IOCTL_FIONBIO = FIONBIO;
549  unsigned IOCTL_FIONCLEX = FIONCLEX;
550  unsigned IOCTL_FIOSETOWN = FIOSETOWN;
551  unsigned IOCTL_SIOCADDMULTI = SIOCADDMULTI;
552  unsigned IOCTL_SIOCATMARK = SIOCATMARK;
553  unsigned IOCTL_SIOCDELMULTI = SIOCDELMULTI;
554  unsigned IOCTL_SIOCGIFADDR = SIOCGIFADDR;
555  unsigned IOCTL_SIOCGIFBRDADDR = SIOCGIFBRDADDR;
556  unsigned IOCTL_SIOCGIFCONF = SIOCGIFCONF;
557  unsigned IOCTL_SIOCGIFDSTADDR = SIOCGIFDSTADDR;
558  unsigned IOCTL_SIOCGIFFLAGS = SIOCGIFFLAGS;
559  unsigned IOCTL_SIOCGIFMETRIC = SIOCGIFMETRIC;
560  unsigned IOCTL_SIOCGIFMTU = SIOCGIFMTU;
561  unsigned IOCTL_SIOCGIFNETMASK = SIOCGIFNETMASK;
562  unsigned IOCTL_SIOCGPGRP = SIOCGPGRP;
563  unsigned IOCTL_SIOCSIFADDR = SIOCSIFADDR;
564  unsigned IOCTL_SIOCSIFBRDADDR = SIOCSIFBRDADDR;
565  unsigned IOCTL_SIOCSIFDSTADDR = SIOCSIFDSTADDR;
566  unsigned IOCTL_SIOCSIFFLAGS = SIOCSIFFLAGS;
567  unsigned IOCTL_SIOCSIFMETRIC = SIOCSIFMETRIC;
568  unsigned IOCTL_SIOCSIFMTU = SIOCSIFMTU;
569  unsigned IOCTL_SIOCSIFNETMASK = SIOCSIFNETMASK;
570  unsigned IOCTL_SIOCSPGRP = SIOCSPGRP;
571  unsigned IOCTL_TIOCCONS = TIOCCONS;
572  unsigned IOCTL_TIOCEXCL = TIOCEXCL;
573  unsigned IOCTL_TIOCGETD = TIOCGETD;
574  unsigned IOCTL_TIOCGPGRP = TIOCGPGRP;
575  unsigned IOCTL_TIOCGWINSZ = TIOCGWINSZ;
576  unsigned IOCTL_TIOCMBIC = TIOCMBIC;
577  unsigned IOCTL_TIOCMBIS = TIOCMBIS;
578  unsigned IOCTL_TIOCMGET = TIOCMGET;
579  unsigned IOCTL_TIOCMSET = TIOCMSET;
580  unsigned IOCTL_TIOCNOTTY = TIOCNOTTY;
581  unsigned IOCTL_TIOCNXCL = TIOCNXCL;
582  unsigned IOCTL_TIOCOUTQ = TIOCOUTQ;
583  unsigned IOCTL_TIOCPKT = TIOCPKT;
584  unsigned IOCTL_TIOCSCTTY = TIOCSCTTY;
585  unsigned IOCTL_TIOCSETD = TIOCSETD;
586  unsigned IOCTL_TIOCSPGRP = TIOCSPGRP;
587  unsigned IOCTL_TIOCSTI = TIOCSTI;
588  unsigned IOCTL_TIOCSWINSZ = TIOCSWINSZ;
589#if SANITIZER_LINUX && !SANITIZER_ANDROID
590  unsigned IOCTL_SIOCGETSGCNT = SIOCGETSGCNT;
591  unsigned IOCTL_SIOCGETVIFCNT = SIOCGETVIFCNT;
592#endif
593
594#if SANITIZER_LINUX
595  unsigned IOCTL_EVIOCGABS = EVIOCGABS(0);
596  unsigned IOCTL_EVIOCGBIT = EVIOCGBIT(0, 0);
597  unsigned IOCTL_EVIOCGEFFECTS = EVIOCGEFFECTS;
598  unsigned IOCTL_EVIOCGID = EVIOCGID;
599  unsigned IOCTL_EVIOCGKEY = EVIOCGKEY(0);
600  unsigned IOCTL_EVIOCGKEYCODE = EVIOCGKEYCODE;
601  unsigned IOCTL_EVIOCGLED = EVIOCGLED(0);
602  unsigned IOCTL_EVIOCGNAME = EVIOCGNAME(0);
603  unsigned IOCTL_EVIOCGPHYS = EVIOCGPHYS(0);
604  unsigned IOCTL_EVIOCGRAB = EVIOCGRAB;
605  unsigned IOCTL_EVIOCGREP = EVIOCGREP;
606  unsigned IOCTL_EVIOCGSND = EVIOCGSND(0);
607  unsigned IOCTL_EVIOCGSW = EVIOCGSW(0);
608  unsigned IOCTL_EVIOCGUNIQ = EVIOCGUNIQ(0);
609  unsigned IOCTL_EVIOCGVERSION = EVIOCGVERSION;
610  unsigned IOCTL_EVIOCRMFF = EVIOCRMFF;
611  unsigned IOCTL_EVIOCSABS = EVIOCSABS(0);
612  unsigned IOCTL_EVIOCSFF = EVIOCSFF;
613  unsigned IOCTL_EVIOCSKEYCODE = EVIOCSKEYCODE;
614  unsigned IOCTL_EVIOCSREP = EVIOCSREP;
615  unsigned IOCTL_BLKFLSBUF = BLKFLSBUF;
616  unsigned IOCTL_BLKGETSIZE = BLKGETSIZE;
617  unsigned IOCTL_BLKRAGET = BLKRAGET;
618  unsigned IOCTL_BLKRASET = BLKRASET;
619  unsigned IOCTL_BLKROGET = BLKROGET;
620  unsigned IOCTL_BLKROSET = BLKROSET;
621  unsigned IOCTL_BLKRRPART = BLKRRPART;
622  unsigned IOCTL_BLKFRASET = BLKFRASET;
623  unsigned IOCTL_BLKFRAGET = BLKFRAGET;
624  unsigned IOCTL_BLKSECTSET = BLKSECTSET;
625  unsigned IOCTL_BLKSECTGET = BLKSECTGET;
626  unsigned IOCTL_BLKSSZGET = BLKSSZGET;
627  unsigned IOCTL_BLKBSZGET = BLKBSZGET;
628  unsigned IOCTL_BLKBSZSET = BLKBSZSET;
629  unsigned IOCTL_BLKGETSIZE64 = BLKGETSIZE64;
630  unsigned IOCTL_CDROMAUDIOBUFSIZ = CDROMAUDIOBUFSIZ;
631  unsigned IOCTL_CDROMEJECT = CDROMEJECT;
632  unsigned IOCTL_CDROMEJECT_SW = CDROMEJECT_SW;
633  unsigned IOCTL_CDROMMULTISESSION = CDROMMULTISESSION;
634  unsigned IOCTL_CDROMPAUSE = CDROMPAUSE;
635  unsigned IOCTL_CDROMPLAYMSF = CDROMPLAYMSF;
636  unsigned IOCTL_CDROMPLAYTRKIND = CDROMPLAYTRKIND;
637  unsigned IOCTL_CDROMREADAUDIO = CDROMREADAUDIO;
638  unsigned IOCTL_CDROMREADCOOKED = CDROMREADCOOKED;
639  unsigned IOCTL_CDROMREADMODE1 = CDROMREADMODE1;
640  unsigned IOCTL_CDROMREADMODE2 = CDROMREADMODE2;
641  unsigned IOCTL_CDROMREADRAW = CDROMREADRAW;
642  unsigned IOCTL_CDROMREADTOCENTRY = CDROMREADTOCENTRY;
643  unsigned IOCTL_CDROMREADTOCHDR = CDROMREADTOCHDR;
644  unsigned IOCTL_CDROMRESET = CDROMRESET;
645  unsigned IOCTL_CDROMRESUME = CDROMRESUME;
646  unsigned IOCTL_CDROMSEEK = CDROMSEEK;
647  unsigned IOCTL_CDROMSTART = CDROMSTART;
648  unsigned IOCTL_CDROMSTOP = CDROMSTOP;
649  unsigned IOCTL_CDROMSUBCHNL = CDROMSUBCHNL;
650  unsigned IOCTL_CDROMVOLCTRL = CDROMVOLCTRL;
651  unsigned IOCTL_CDROMVOLREAD = CDROMVOLREAD;
652  unsigned IOCTL_CDROM_GET_UPC = CDROM_GET_UPC;
653  unsigned IOCTL_FDCLRPRM = FDCLRPRM;
654  unsigned IOCTL_FDDEFPRM = FDDEFPRM;
655  unsigned IOCTL_FDFLUSH = FDFLUSH;
656  unsigned IOCTL_FDFMTBEG = FDFMTBEG;
657  unsigned IOCTL_FDFMTEND = FDFMTEND;
658  unsigned IOCTL_FDFMTTRK = FDFMTTRK;
659  unsigned IOCTL_FDGETDRVPRM = FDGETDRVPRM;
660  unsigned IOCTL_FDGETDRVSTAT = FDGETDRVSTAT;
661  unsigned IOCTL_FDGETDRVTYP = FDGETDRVTYP;
662  unsigned IOCTL_FDGETFDCSTAT = FDGETFDCSTAT;
663  unsigned IOCTL_FDGETMAXERRS = FDGETMAXERRS;
664  unsigned IOCTL_FDGETPRM = FDGETPRM;
665  unsigned IOCTL_FDMSGOFF = FDMSGOFF;
666  unsigned IOCTL_FDMSGON = FDMSGON;
667  unsigned IOCTL_FDPOLLDRVSTAT = FDPOLLDRVSTAT;
668  unsigned IOCTL_FDRAWCMD = FDRAWCMD;
669  unsigned IOCTL_FDRESET = FDRESET;
670  unsigned IOCTL_FDSETDRVPRM = FDSETDRVPRM;
671  unsigned IOCTL_FDSETEMSGTRESH = FDSETEMSGTRESH;
672  unsigned IOCTL_FDSETMAXERRS = FDSETMAXERRS;
673  unsigned IOCTL_FDSETPRM = FDSETPRM;
674  unsigned IOCTL_FDTWADDLE = FDTWADDLE;
675  unsigned IOCTL_FDWERRORCLR = FDWERRORCLR;
676  unsigned IOCTL_FDWERRORGET = FDWERRORGET;
677  unsigned IOCTL_HDIO_DRIVE_CMD = HDIO_DRIVE_CMD;
678  unsigned IOCTL_HDIO_GETGEO = HDIO_GETGEO;
679  unsigned IOCTL_HDIO_GET_32BIT = HDIO_GET_32BIT;
680  unsigned IOCTL_HDIO_GET_DMA = HDIO_GET_DMA;
681  unsigned IOCTL_HDIO_GET_IDENTITY = HDIO_GET_IDENTITY;
682  unsigned IOCTL_HDIO_GET_KEEPSETTINGS = HDIO_GET_KEEPSETTINGS;
683  unsigned IOCTL_HDIO_GET_MULTCOUNT = HDIO_GET_MULTCOUNT;
684  unsigned IOCTL_HDIO_GET_NOWERR = HDIO_GET_NOWERR;
685  unsigned IOCTL_HDIO_GET_UNMASKINTR = HDIO_GET_UNMASKINTR;
686  unsigned IOCTL_HDIO_SET_32BIT = HDIO_SET_32BIT;
687  unsigned IOCTL_HDIO_SET_DMA = HDIO_SET_DMA;
688  unsigned IOCTL_HDIO_SET_KEEPSETTINGS = HDIO_SET_KEEPSETTINGS;
689  unsigned IOCTL_HDIO_SET_MULTCOUNT = HDIO_SET_MULTCOUNT;
690  unsigned IOCTL_HDIO_SET_NOWERR = HDIO_SET_NOWERR;
691  unsigned IOCTL_HDIO_SET_UNMASKINTR = HDIO_SET_UNMASKINTR;
692  unsigned IOCTL_MTIOCPOS = MTIOCPOS;
693  unsigned IOCTL_PPPIOCGASYNCMAP = PPPIOCGASYNCMAP;
694  unsigned IOCTL_PPPIOCGDEBUG = PPPIOCGDEBUG;
695  unsigned IOCTL_PPPIOCGFLAGS = PPPIOCGFLAGS;
696  unsigned IOCTL_PPPIOCGUNIT = PPPIOCGUNIT;
697  unsigned IOCTL_PPPIOCGXASYNCMAP = PPPIOCGXASYNCMAP;
698  unsigned IOCTL_PPPIOCSASYNCMAP = PPPIOCSASYNCMAP;
699  unsigned IOCTL_PPPIOCSDEBUG = PPPIOCSDEBUG;
700  unsigned IOCTL_PPPIOCSFLAGS = PPPIOCSFLAGS;
701  unsigned IOCTL_PPPIOCSMAXCID = PPPIOCSMAXCID;
702  unsigned IOCTL_PPPIOCSMRU = PPPIOCSMRU;
703  unsigned IOCTL_PPPIOCSXASYNCMAP = PPPIOCSXASYNCMAP;
704  unsigned IOCTL_SIOCADDRT = SIOCADDRT;
705  unsigned IOCTL_SIOCDARP = SIOCDARP;
706  unsigned IOCTL_SIOCDELRT = SIOCDELRT;
707  unsigned IOCTL_SIOCDRARP = SIOCDRARP;
708  unsigned IOCTL_SIOCGARP = SIOCGARP;
709  unsigned IOCTL_SIOCGIFENCAP = SIOCGIFENCAP;
710  unsigned IOCTL_SIOCGIFHWADDR = SIOCGIFHWADDR;
711  unsigned IOCTL_SIOCGIFMAP = SIOCGIFMAP;
712  unsigned IOCTL_SIOCGIFMEM = SIOCGIFMEM;
713  unsigned IOCTL_SIOCGIFNAME = SIOCGIFNAME;
714  unsigned IOCTL_SIOCGIFSLAVE = SIOCGIFSLAVE;
715  unsigned IOCTL_SIOCGRARP = SIOCGRARP;
716  unsigned IOCTL_SIOCGSTAMP = SIOCGSTAMP;
717  unsigned IOCTL_SIOCSARP = SIOCSARP;
718  unsigned IOCTL_SIOCSIFENCAP = SIOCSIFENCAP;
719  unsigned IOCTL_SIOCSIFHWADDR = SIOCSIFHWADDR;
720  unsigned IOCTL_SIOCSIFLINK = SIOCSIFLINK;
721  unsigned IOCTL_SIOCSIFMAP = SIOCSIFMAP;
722  unsigned IOCTL_SIOCSIFMEM = SIOCSIFMEM;
723  unsigned IOCTL_SIOCSIFSLAVE = SIOCSIFSLAVE;
724  unsigned IOCTL_SIOCSRARP = SIOCSRARP;
725# if SOUND_VERSION >= 0x040000
726  unsigned IOCTL_SNDCTL_COPR_HALT = IOCTL_NOT_PRESENT;
727  unsigned IOCTL_SNDCTL_COPR_LOAD = IOCTL_NOT_PRESENT;
728  unsigned IOCTL_SNDCTL_COPR_RCODE = IOCTL_NOT_PRESENT;
729  unsigned IOCTL_SNDCTL_COPR_RCVMSG = IOCTL_NOT_PRESENT;
730  unsigned IOCTL_SNDCTL_COPR_RDATA = IOCTL_NOT_PRESENT;
731  unsigned IOCTL_SNDCTL_COPR_RESET = IOCTL_NOT_PRESENT;
732  unsigned IOCTL_SNDCTL_COPR_RUN = IOCTL_NOT_PRESENT;
733  unsigned IOCTL_SNDCTL_COPR_SENDMSG = IOCTL_NOT_PRESENT;
734  unsigned IOCTL_SNDCTL_COPR_WCODE = IOCTL_NOT_PRESENT;
735  unsigned IOCTL_SNDCTL_COPR_WDATA = IOCTL_NOT_PRESENT;
736  unsigned IOCTL_SOUND_PCM_READ_BITS = IOCTL_NOT_PRESENT;
737  unsigned IOCTL_SOUND_PCM_READ_CHANNELS = IOCTL_NOT_PRESENT;
738  unsigned IOCTL_SOUND_PCM_READ_FILTER = IOCTL_NOT_PRESENT;
739  unsigned IOCTL_SOUND_PCM_READ_RATE = IOCTL_NOT_PRESENT;
740  unsigned IOCTL_SOUND_PCM_WRITE_CHANNELS = IOCTL_NOT_PRESENT;
741  unsigned IOCTL_SOUND_PCM_WRITE_FILTER = IOCTL_NOT_PRESENT;
742# else  // SOUND_VERSION
743  unsigned IOCTL_SNDCTL_COPR_HALT = SNDCTL_COPR_HALT;
744  unsigned IOCTL_SNDCTL_COPR_LOAD = SNDCTL_COPR_LOAD;
745  unsigned IOCTL_SNDCTL_COPR_RCODE = SNDCTL_COPR_RCODE;
746  unsigned IOCTL_SNDCTL_COPR_RCVMSG = SNDCTL_COPR_RCVMSG;
747  unsigned IOCTL_SNDCTL_COPR_RDATA = SNDCTL_COPR_RDATA;
748  unsigned IOCTL_SNDCTL_COPR_RESET = SNDCTL_COPR_RESET;
749  unsigned IOCTL_SNDCTL_COPR_RUN = SNDCTL_COPR_RUN;
750  unsigned IOCTL_SNDCTL_COPR_SENDMSG = SNDCTL_COPR_SENDMSG;
751  unsigned IOCTL_SNDCTL_COPR_WCODE = SNDCTL_COPR_WCODE;
752  unsigned IOCTL_SNDCTL_COPR_WDATA = SNDCTL_COPR_WDATA;
753  unsigned IOCTL_SOUND_PCM_READ_BITS = SOUND_PCM_READ_BITS;
754  unsigned IOCTL_SOUND_PCM_READ_CHANNELS = SOUND_PCM_READ_CHANNELS;
755  unsigned IOCTL_SOUND_PCM_READ_FILTER = SOUND_PCM_READ_FILTER;
756  unsigned IOCTL_SOUND_PCM_READ_RATE = SOUND_PCM_READ_RATE;
757  unsigned IOCTL_SOUND_PCM_WRITE_CHANNELS = SOUND_PCM_WRITE_CHANNELS;
758  unsigned IOCTL_SOUND_PCM_WRITE_FILTER = SOUND_PCM_WRITE_FILTER;
759#endif // SOUND_VERSION
760  unsigned IOCTL_TCFLSH = TCFLSH;
761  unsigned IOCTL_TCGETA = TCGETA;
762  unsigned IOCTL_TCGETS = TCGETS;
763  unsigned IOCTL_TCSBRK = TCSBRK;
764  unsigned IOCTL_TCSBRKP = TCSBRKP;
765  unsigned IOCTL_TCSETA = TCSETA;
766  unsigned IOCTL_TCSETAF = TCSETAF;
767  unsigned IOCTL_TCSETAW = TCSETAW;
768  unsigned IOCTL_TCSETS = TCSETS;
769  unsigned IOCTL_TCSETSF = TCSETSF;
770  unsigned IOCTL_TCSETSW = TCSETSW;
771  unsigned IOCTL_TCXONC = TCXONC;
772  unsigned IOCTL_TIOCGLCKTRMIOS = TIOCGLCKTRMIOS;
773  unsigned IOCTL_TIOCGSOFTCAR = TIOCGSOFTCAR;
774  unsigned IOCTL_TIOCINQ = TIOCINQ;
775  unsigned IOCTL_TIOCLINUX = TIOCLINUX;
776  unsigned IOCTL_TIOCSERCONFIG = TIOCSERCONFIG;
777  unsigned IOCTL_TIOCSERGETLSR = TIOCSERGETLSR;
778  unsigned IOCTL_TIOCSERGWILD = TIOCSERGWILD;
779  unsigned IOCTL_TIOCSERSWILD = TIOCSERSWILD;
780  unsigned IOCTL_TIOCSLCKTRMIOS = TIOCSLCKTRMIOS;
781  unsigned IOCTL_TIOCSSOFTCAR = TIOCSSOFTCAR;
782  unsigned IOCTL_VT_DISALLOCATE = VT_DISALLOCATE;
783  unsigned IOCTL_VT_GETSTATE = VT_GETSTATE;
784  unsigned IOCTL_VT_RESIZE = VT_RESIZE;
785  unsigned IOCTL_VT_RESIZEX = VT_RESIZEX;
786  unsigned IOCTL_VT_SENDSIG = VT_SENDSIG;
787  unsigned IOCTL_MTIOCGET = MTIOCGET;
788  unsigned IOCTL_MTIOCTOP = MTIOCTOP;
789  unsigned IOCTL_SNDCTL_DSP_GETBLKSIZE = SNDCTL_DSP_GETBLKSIZE;
790  unsigned IOCTL_SNDCTL_DSP_GETFMTS = SNDCTL_DSP_GETFMTS;
791  unsigned IOCTL_SNDCTL_DSP_NONBLOCK = SNDCTL_DSP_NONBLOCK;
792  unsigned IOCTL_SNDCTL_DSP_POST = SNDCTL_DSP_POST;
793  unsigned IOCTL_SNDCTL_DSP_RESET = SNDCTL_DSP_RESET;
794  unsigned IOCTL_SNDCTL_DSP_SETFMT = SNDCTL_DSP_SETFMT;
795  unsigned IOCTL_SNDCTL_DSP_SETFRAGMENT = SNDCTL_DSP_SETFRAGMENT;
796  unsigned IOCTL_SNDCTL_DSP_SPEED = SNDCTL_DSP_SPEED;
797  unsigned IOCTL_SNDCTL_DSP_STEREO = SNDCTL_DSP_STEREO;
798  unsigned IOCTL_SNDCTL_DSP_SUBDIVIDE = SNDCTL_DSP_SUBDIVIDE;
799  unsigned IOCTL_SNDCTL_DSP_SYNC = SNDCTL_DSP_SYNC;
800  unsigned IOCTL_SNDCTL_FM_4OP_ENABLE = SNDCTL_FM_4OP_ENABLE;
801  unsigned IOCTL_SNDCTL_FM_LOAD_INSTR = SNDCTL_FM_LOAD_INSTR;
802  unsigned IOCTL_SNDCTL_MIDI_INFO = SNDCTL_MIDI_INFO;
803  unsigned IOCTL_SNDCTL_MIDI_PRETIME = SNDCTL_MIDI_PRETIME;
804  unsigned IOCTL_SNDCTL_SEQ_CTRLRATE = SNDCTL_SEQ_CTRLRATE;
805  unsigned IOCTL_SNDCTL_SEQ_GETINCOUNT = SNDCTL_SEQ_GETINCOUNT;
806  unsigned IOCTL_SNDCTL_SEQ_GETOUTCOUNT = SNDCTL_SEQ_GETOUTCOUNT;
807  unsigned IOCTL_SNDCTL_SEQ_NRMIDIS = SNDCTL_SEQ_NRMIDIS;
808  unsigned IOCTL_SNDCTL_SEQ_NRSYNTHS = SNDCTL_SEQ_NRSYNTHS;
809  unsigned IOCTL_SNDCTL_SEQ_OUTOFBAND = SNDCTL_SEQ_OUTOFBAND;
810  unsigned IOCTL_SNDCTL_SEQ_PANIC = SNDCTL_SEQ_PANIC;
811  unsigned IOCTL_SNDCTL_SEQ_PERCMODE = SNDCTL_SEQ_PERCMODE;
812  unsigned IOCTL_SNDCTL_SEQ_RESET = SNDCTL_SEQ_RESET;
813  unsigned IOCTL_SNDCTL_SEQ_RESETSAMPLES = SNDCTL_SEQ_RESETSAMPLES;
814  unsigned IOCTL_SNDCTL_SEQ_SYNC = SNDCTL_SEQ_SYNC;
815  unsigned IOCTL_SNDCTL_SEQ_TESTMIDI = SNDCTL_SEQ_TESTMIDI;
816  unsigned IOCTL_SNDCTL_SEQ_THRESHOLD = SNDCTL_SEQ_THRESHOLD;
817  unsigned IOCTL_SNDCTL_SYNTH_INFO = SNDCTL_SYNTH_INFO;
818  unsigned IOCTL_SNDCTL_SYNTH_MEMAVL = SNDCTL_SYNTH_MEMAVL;
819  unsigned IOCTL_SNDCTL_TMR_CONTINUE = SNDCTL_TMR_CONTINUE;
820  unsigned IOCTL_SNDCTL_TMR_METRONOME = SNDCTL_TMR_METRONOME;
821  unsigned IOCTL_SNDCTL_TMR_SELECT = SNDCTL_TMR_SELECT;
822  unsigned IOCTL_SNDCTL_TMR_SOURCE = SNDCTL_TMR_SOURCE;
823  unsigned IOCTL_SNDCTL_TMR_START = SNDCTL_TMR_START;
824  unsigned IOCTL_SNDCTL_TMR_STOP = SNDCTL_TMR_STOP;
825  unsigned IOCTL_SNDCTL_TMR_TEMPO = SNDCTL_TMR_TEMPO;
826  unsigned IOCTL_SNDCTL_TMR_TIMEBASE = SNDCTL_TMR_TIMEBASE;
827  unsigned IOCTL_SOUND_MIXER_READ_ALTPCM = SOUND_MIXER_READ_ALTPCM;
828  unsigned IOCTL_SOUND_MIXER_READ_BASS = SOUND_MIXER_READ_BASS;
829  unsigned IOCTL_SOUND_MIXER_READ_CAPS = SOUND_MIXER_READ_CAPS;
830  unsigned IOCTL_SOUND_MIXER_READ_CD = SOUND_MIXER_READ_CD;
831  unsigned IOCTL_SOUND_MIXER_READ_DEVMASK = SOUND_MIXER_READ_DEVMASK;
832  unsigned IOCTL_SOUND_MIXER_READ_ENHANCE = SOUND_MIXER_READ_ENHANCE;
833  unsigned IOCTL_SOUND_MIXER_READ_IGAIN = SOUND_MIXER_READ_IGAIN;
834  unsigned IOCTL_SOUND_MIXER_READ_IMIX = SOUND_MIXER_READ_IMIX;
835  unsigned IOCTL_SOUND_MIXER_READ_LINE = SOUND_MIXER_READ_LINE;
836  unsigned IOCTL_SOUND_MIXER_READ_LINE1 = SOUND_MIXER_READ_LINE1;
837  unsigned IOCTL_SOUND_MIXER_READ_LINE2 = SOUND_MIXER_READ_LINE2;
838  unsigned IOCTL_SOUND_MIXER_READ_LINE3 = SOUND_MIXER_READ_LINE3;
839  unsigned IOCTL_SOUND_MIXER_READ_LOUD = SOUND_MIXER_READ_LOUD;
840  unsigned IOCTL_SOUND_MIXER_READ_MIC = SOUND_MIXER_READ_MIC;
841  unsigned IOCTL_SOUND_MIXER_READ_MUTE = SOUND_MIXER_READ_MUTE;
842  unsigned IOCTL_SOUND_MIXER_READ_OGAIN = SOUND_MIXER_READ_OGAIN;
843  unsigned IOCTL_SOUND_MIXER_READ_PCM = SOUND_MIXER_READ_PCM;
844  unsigned IOCTL_SOUND_MIXER_READ_RECLEV = SOUND_MIXER_READ_RECLEV;
845  unsigned IOCTL_SOUND_MIXER_READ_RECMASK = SOUND_MIXER_READ_RECMASK;
846  unsigned IOCTL_SOUND_MIXER_READ_RECSRC = SOUND_MIXER_READ_RECSRC;
847  unsigned IOCTL_SOUND_MIXER_READ_SPEAKER = SOUND_MIXER_READ_SPEAKER;
848  unsigned IOCTL_SOUND_MIXER_READ_STEREODEVS = SOUND_MIXER_READ_STEREODEVS;
849  unsigned IOCTL_SOUND_MIXER_READ_SYNTH = SOUND_MIXER_READ_SYNTH;
850  unsigned IOCTL_SOUND_MIXER_READ_TREBLE = SOUND_MIXER_READ_TREBLE;
851  unsigned IOCTL_SOUND_MIXER_READ_VOLUME = SOUND_MIXER_READ_VOLUME;
852  unsigned IOCTL_SOUND_MIXER_WRITE_ALTPCM = SOUND_MIXER_WRITE_ALTPCM;
853  unsigned IOCTL_SOUND_MIXER_WRITE_BASS = SOUND_MIXER_WRITE_BASS;
854  unsigned IOCTL_SOUND_MIXER_WRITE_CD = SOUND_MIXER_WRITE_CD;
855  unsigned IOCTL_SOUND_MIXER_WRITE_ENHANCE = SOUND_MIXER_WRITE_ENHANCE;
856  unsigned IOCTL_SOUND_MIXER_WRITE_IGAIN = SOUND_MIXER_WRITE_IGAIN;
857  unsigned IOCTL_SOUND_MIXER_WRITE_IMIX = SOUND_MIXER_WRITE_IMIX;
858  unsigned IOCTL_SOUND_MIXER_WRITE_LINE = SOUND_MIXER_WRITE_LINE;
859  unsigned IOCTL_SOUND_MIXER_WRITE_LINE1 = SOUND_MIXER_WRITE_LINE1;
860  unsigned IOCTL_SOUND_MIXER_WRITE_LINE2 = SOUND_MIXER_WRITE_LINE2;
861  unsigned IOCTL_SOUND_MIXER_WRITE_LINE3 = SOUND_MIXER_WRITE_LINE3;
862  unsigned IOCTL_SOUND_MIXER_WRITE_LOUD = SOUND_MIXER_WRITE_LOUD;
863  unsigned IOCTL_SOUND_MIXER_WRITE_MIC = SOUND_MIXER_WRITE_MIC;
864  unsigned IOCTL_SOUND_MIXER_WRITE_MUTE = SOUND_MIXER_WRITE_MUTE;
865  unsigned IOCTL_SOUND_MIXER_WRITE_OGAIN = SOUND_MIXER_WRITE_OGAIN;
866  unsigned IOCTL_SOUND_MIXER_WRITE_PCM = SOUND_MIXER_WRITE_PCM;
867  unsigned IOCTL_SOUND_MIXER_WRITE_RECLEV = SOUND_MIXER_WRITE_RECLEV;
868  unsigned IOCTL_SOUND_MIXER_WRITE_RECSRC = SOUND_MIXER_WRITE_RECSRC;
869  unsigned IOCTL_SOUND_MIXER_WRITE_SPEAKER = SOUND_MIXER_WRITE_SPEAKER;
870  unsigned IOCTL_SOUND_MIXER_WRITE_SYNTH = SOUND_MIXER_WRITE_SYNTH;
871  unsigned IOCTL_SOUND_MIXER_WRITE_TREBLE = SOUND_MIXER_WRITE_TREBLE;
872  unsigned IOCTL_SOUND_MIXER_WRITE_VOLUME = SOUND_MIXER_WRITE_VOLUME;
873  unsigned IOCTL_VT_ACTIVATE = VT_ACTIVATE;
874  unsigned IOCTL_VT_GETMODE = VT_GETMODE;
875  unsigned IOCTL_VT_OPENQRY = VT_OPENQRY;
876  unsigned IOCTL_VT_RELDISP = VT_RELDISP;
877  unsigned IOCTL_VT_SETMODE = VT_SETMODE;
878  unsigned IOCTL_VT_WAITACTIVE = VT_WAITACTIVE;
879#endif // SANITIZER_LINUX
880
881#if SANITIZER_LINUX && !SANITIZER_ANDROID
882  unsigned IOCTL_EQL_EMANCIPATE = EQL_EMANCIPATE;
883  unsigned IOCTL_EQL_ENSLAVE = EQL_ENSLAVE;
884  unsigned IOCTL_EQL_GETMASTRCFG = EQL_GETMASTRCFG;
885  unsigned IOCTL_EQL_GETSLAVECFG = EQL_GETSLAVECFG;
886  unsigned IOCTL_EQL_SETMASTRCFG = EQL_SETMASTRCFG;
887  unsigned IOCTL_EQL_SETSLAVECFG = EQL_SETSLAVECFG;
888#if EV_VERSION > (0x010000)
889  unsigned IOCTL_EVIOCGKEYCODE_V2 = EVIOCGKEYCODE_V2;
890  unsigned IOCTL_EVIOCGPROP = EVIOCGPROP(0);
891  unsigned IOCTL_EVIOCSKEYCODE_V2 = EVIOCSKEYCODE_V2;
892#else
893  unsigned IOCTL_EVIOCGKEYCODE_V2 = IOCTL_NOT_PRESENT;
894  unsigned IOCTL_EVIOCGPROP = IOCTL_NOT_PRESENT;
895  unsigned IOCTL_EVIOCSKEYCODE_V2 = IOCTL_NOT_PRESENT;
896#endif
897  unsigned IOCTL_FS_IOC_GETFLAGS = _IOR('f', 1, long);
898  unsigned IOCTL_FS_IOC_GETVERSION = _IOR('v', 1, long);
899  unsigned IOCTL_FS_IOC_SETFLAGS = _IOW('f', 2, long);
900  unsigned IOCTL_FS_IOC_SETVERSION = _IOW('v', 2, long);
901  unsigned IOCTL_GIO_CMAP = GIO_CMAP;
902  unsigned IOCTL_GIO_FONT = GIO_FONT;
903  unsigned IOCTL_GIO_UNIMAP = GIO_UNIMAP;
904  unsigned IOCTL_GIO_UNISCRNMAP = GIO_UNISCRNMAP;
905  unsigned IOCTL_KDADDIO = KDADDIO;
906  unsigned IOCTL_KDDELIO = KDDELIO;
907  unsigned IOCTL_KDGETKEYCODE = KDGETKEYCODE;
908  unsigned IOCTL_KDGKBDIACR = KDGKBDIACR;
909  unsigned IOCTL_KDGKBENT = KDGKBENT;
910  unsigned IOCTL_KDGKBLED = KDGKBLED;
911  unsigned IOCTL_KDGKBMETA = KDGKBMETA;
912  unsigned IOCTL_KDGKBSENT = KDGKBSENT;
913  unsigned IOCTL_KDMAPDISP = KDMAPDISP;
914  unsigned IOCTL_KDSETKEYCODE = KDSETKEYCODE;
915  unsigned IOCTL_KDSIGACCEPT = KDSIGACCEPT;
916  unsigned IOCTL_KDSKBDIACR = KDSKBDIACR;
917  unsigned IOCTL_KDSKBENT = KDSKBENT;
918  unsigned IOCTL_KDSKBLED = KDSKBLED;
919  unsigned IOCTL_KDSKBMETA = KDSKBMETA;
920  unsigned IOCTL_KDSKBSENT = KDSKBSENT;
921  unsigned IOCTL_KDUNMAPDISP = KDUNMAPDISP;
922  unsigned IOCTL_LPABORT = LPABORT;
923  unsigned IOCTL_LPABORTOPEN = LPABORTOPEN;
924  unsigned IOCTL_LPCAREFUL = LPCAREFUL;
925  unsigned IOCTL_LPCHAR = LPCHAR;
926  unsigned IOCTL_LPGETIRQ = LPGETIRQ;
927  unsigned IOCTL_LPGETSTATUS = LPGETSTATUS;
928  unsigned IOCTL_LPRESET = LPRESET;
929  unsigned IOCTL_LPSETIRQ = LPSETIRQ;
930  unsigned IOCTL_LPTIME = LPTIME;
931  unsigned IOCTL_LPWAIT = LPWAIT;
932  unsigned IOCTL_MTIOCGETCONFIG = MTIOCGETCONFIG;
933  unsigned IOCTL_MTIOCSETCONFIG = MTIOCSETCONFIG;
934  unsigned IOCTL_PIO_CMAP = PIO_CMAP;
935  unsigned IOCTL_PIO_FONT = PIO_FONT;
936  unsigned IOCTL_PIO_UNIMAP = PIO_UNIMAP;
937  unsigned IOCTL_PIO_UNIMAPCLR = PIO_UNIMAPCLR;
938  unsigned IOCTL_PIO_UNISCRNMAP = PIO_UNISCRNMAP;
939#if SANITIZER_GLIBC
940  unsigned IOCTL_SCSI_IOCTL_GET_IDLUN = SCSI_IOCTL_GET_IDLUN;
941  unsigned IOCTL_SCSI_IOCTL_PROBE_HOST = SCSI_IOCTL_PROBE_HOST;
942  unsigned IOCTL_SCSI_IOCTL_TAGGED_DISABLE = SCSI_IOCTL_TAGGED_DISABLE;
943  unsigned IOCTL_SCSI_IOCTL_TAGGED_ENABLE = SCSI_IOCTL_TAGGED_ENABLE;
944  unsigned IOCTL_SIOCAIPXITFCRT = SIOCAIPXITFCRT;
945  unsigned IOCTL_SIOCAIPXPRISLT = SIOCAIPXPRISLT;
946  unsigned IOCTL_SIOCAX25ADDUID = SIOCAX25ADDUID;
947  unsigned IOCTL_SIOCAX25DELUID = SIOCAX25DELUID;
948  unsigned IOCTL_SIOCAX25GETPARMS = SIOCAX25GETPARMS;
949  unsigned IOCTL_SIOCAX25GETUID = SIOCAX25GETUID;
950  unsigned IOCTL_SIOCAX25NOUID = SIOCAX25NOUID;
951  unsigned IOCTL_SIOCAX25SETPARMS = SIOCAX25SETPARMS;
952  unsigned IOCTL_SIOCDEVPLIP = SIOCDEVPLIP;
953  unsigned IOCTL_SIOCIPXCFGDATA = SIOCIPXCFGDATA;
954  unsigned IOCTL_SIOCNRDECOBS = SIOCNRDECOBS;
955  unsigned IOCTL_SIOCNRGETPARMS = SIOCNRGETPARMS;
956  unsigned IOCTL_SIOCNRRTCTL = SIOCNRRTCTL;
957  unsigned IOCTL_SIOCNRSETPARMS = SIOCNRSETPARMS;
958#endif
959  unsigned IOCTL_TIOCGSERIAL = TIOCGSERIAL;
960  unsigned IOCTL_TIOCSERGETMULTI = TIOCSERGETMULTI;
961  unsigned IOCTL_TIOCSERSETMULTI = TIOCSERSETMULTI;
962  unsigned IOCTL_TIOCSSERIAL = TIOCSSERIAL;
963#endif // SANITIZER_LINUX && !SANITIZER_ANDROID
964
965#if SANITIZER_LINUX && !SANITIZER_ANDROID
966  unsigned IOCTL_GIO_SCRNMAP = GIO_SCRNMAP;
967  unsigned IOCTL_KDDISABIO = KDDISABIO;
968  unsigned IOCTL_KDENABIO = KDENABIO;
969  unsigned IOCTL_KDGETLED = KDGETLED;
970  unsigned IOCTL_KDGETMODE = KDGETMODE;
971  unsigned IOCTL_KDGKBMODE = KDGKBMODE;
972  unsigned IOCTL_KDGKBTYPE = KDGKBTYPE;
973  unsigned IOCTL_KDMKTONE = KDMKTONE;
974  unsigned IOCTL_KDSETLED = KDSETLED;
975  unsigned IOCTL_KDSETMODE = KDSETMODE;
976  unsigned IOCTL_KDSKBMODE = KDSKBMODE;
977  unsigned IOCTL_KIOCSOUND = KIOCSOUND;
978  unsigned IOCTL_PIO_SCRNMAP = PIO_SCRNMAP;
979  unsigned IOCTL_SNDCTL_DSP_GETISPACE = SNDCTL_DSP_GETISPACE;
980  unsigned IOCTL_SNDCTL_DSP_GETOSPACE = SNDCTL_DSP_GETOSPACE;
981#endif // (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
982
983  const int si_SEGV_MAPERR = SEGV_MAPERR;
984  const int si_SEGV_ACCERR = SEGV_ACCERR;
985} // namespace __sanitizer
986
987using namespace __sanitizer;
988
989COMPILER_CHECK(sizeof(__sanitizer_pthread_attr_t) >= sizeof(pthread_attr_t));
990
991COMPILER_CHECK(sizeof(socklen_t) == sizeof(unsigned));
992CHECK_TYPE_SIZE(pthread_key_t);
993
994#if SANITIZER_LINUX
995// FIXME: We define those on Linux and Mac, but only check on Linux.
996COMPILER_CHECK(IOC_NRBITS == _IOC_NRBITS);
997COMPILER_CHECK(IOC_TYPEBITS == _IOC_TYPEBITS);
998COMPILER_CHECK(IOC_SIZEBITS == _IOC_SIZEBITS);
999COMPILER_CHECK(IOC_DIRBITS == _IOC_DIRBITS);
1000COMPILER_CHECK(IOC_NRMASK == _IOC_NRMASK);
1001COMPILER_CHECK(IOC_TYPEMASK == _IOC_TYPEMASK);
1002COMPILER_CHECK(IOC_SIZEMASK == _IOC_SIZEMASK);
1003COMPILER_CHECK(IOC_DIRMASK == _IOC_DIRMASK);
1004COMPILER_CHECK(IOC_NRSHIFT == _IOC_NRSHIFT);
1005COMPILER_CHECK(IOC_TYPESHIFT == _IOC_TYPESHIFT);
1006COMPILER_CHECK(IOC_SIZESHIFT == _IOC_SIZESHIFT);
1007COMPILER_CHECK(IOC_DIRSHIFT == _IOC_DIRSHIFT);
1008COMPILER_CHECK(IOC_NONE == _IOC_NONE);
1009COMPILER_CHECK(IOC_WRITE == _IOC_WRITE);
1010COMPILER_CHECK(IOC_READ == _IOC_READ);
1011COMPILER_CHECK(EVIOC_ABS_MAX == ABS_MAX);
1012COMPILER_CHECK(EVIOC_EV_MAX == EV_MAX);
1013COMPILER_CHECK(IOC_SIZE(0x12345678) == _IOC_SIZE(0x12345678));
1014COMPILER_CHECK(IOC_DIR(0x12345678) == _IOC_DIR(0x12345678));
1015COMPILER_CHECK(IOC_NR(0x12345678) == _IOC_NR(0x12345678));
1016COMPILER_CHECK(IOC_TYPE(0x12345678) == _IOC_TYPE(0x12345678));
1017#endif // SANITIZER_LINUX
1018
1019#if SANITIZER_LINUX || SANITIZER_FREEBSD
1020// There are more undocumented fields in dl_phdr_info that we are not interested
1021// in.
1022COMPILER_CHECK(sizeof(__sanitizer_dl_phdr_info) <= sizeof(dl_phdr_info));
1023CHECK_SIZE_AND_OFFSET(dl_phdr_info, dlpi_addr);
1024CHECK_SIZE_AND_OFFSET(dl_phdr_info, dlpi_name);
1025CHECK_SIZE_AND_OFFSET(dl_phdr_info, dlpi_phdr);
1026CHECK_SIZE_AND_OFFSET(dl_phdr_info, dlpi_phnum);
1027#endif // SANITIZER_LINUX || SANITIZER_FREEBSD
1028
1029#if SANITIZER_GLIBC || SANITIZER_FREEBSD
1030CHECK_TYPE_SIZE(glob_t);
1031CHECK_SIZE_AND_OFFSET(glob_t, gl_pathc);
1032CHECK_SIZE_AND_OFFSET(glob_t, gl_pathv);
1033CHECK_SIZE_AND_OFFSET(glob_t, gl_offs);
1034CHECK_SIZE_AND_OFFSET(glob_t, gl_flags);
1035CHECK_SIZE_AND_OFFSET(glob_t, gl_closedir);
1036CHECK_SIZE_AND_OFFSET(glob_t, gl_readdir);
1037CHECK_SIZE_AND_OFFSET(glob_t, gl_opendir);
1038CHECK_SIZE_AND_OFFSET(glob_t, gl_lstat);
1039CHECK_SIZE_AND_OFFSET(glob_t, gl_stat);
1040#endif  // SANITIZER_GLIBC || SANITIZER_FREEBSD
1041
1042CHECK_TYPE_SIZE(addrinfo);
1043CHECK_SIZE_AND_OFFSET(addrinfo, ai_flags);
1044CHECK_SIZE_AND_OFFSET(addrinfo, ai_family);
1045CHECK_SIZE_AND_OFFSET(addrinfo, ai_socktype);
1046CHECK_SIZE_AND_OFFSET(addrinfo, ai_protocol);
1047CHECK_SIZE_AND_OFFSET(addrinfo, ai_protocol);
1048CHECK_SIZE_AND_OFFSET(addrinfo, ai_addrlen);
1049CHECK_SIZE_AND_OFFSET(addrinfo, ai_canonname);
1050CHECK_SIZE_AND_OFFSET(addrinfo, ai_addr);
1051
1052CHECK_TYPE_SIZE(hostent);
1053CHECK_SIZE_AND_OFFSET(hostent, h_name);
1054CHECK_SIZE_AND_OFFSET(hostent, h_aliases);
1055CHECK_SIZE_AND_OFFSET(hostent, h_addrtype);
1056CHECK_SIZE_AND_OFFSET(hostent, h_length);
1057CHECK_SIZE_AND_OFFSET(hostent, h_addr_list);
1058
1059CHECK_TYPE_SIZE(iovec);
1060CHECK_SIZE_AND_OFFSET(iovec, iov_base);
1061CHECK_SIZE_AND_OFFSET(iovec, iov_len);
1062
1063// In POSIX, int msg_iovlen; socklen_t msg_controllen; socklen_t cmsg_len; but
1064// many implementations don't conform to the standard. Since we pick the
1065// non-conforming glibc definition, exclude the checks for musl (incompatible
1066// sizes but compatible offsets).
1067CHECK_TYPE_SIZE(msghdr);
1068CHECK_SIZE_AND_OFFSET(msghdr, msg_name);
1069CHECK_SIZE_AND_OFFSET(msghdr, msg_namelen);
1070CHECK_SIZE_AND_OFFSET(msghdr, msg_iov);
1071#if SANITIZER_GLIBC || SANITIZER_ANDROID
1072CHECK_SIZE_AND_OFFSET(msghdr, msg_iovlen);
1073#endif
1074CHECK_SIZE_AND_OFFSET(msghdr, msg_control);
1075#if SANITIZER_GLIBC || SANITIZER_ANDROID
1076CHECK_SIZE_AND_OFFSET(msghdr, msg_controllen);
1077#endif
1078CHECK_SIZE_AND_OFFSET(msghdr, msg_flags);
1079
1080CHECK_TYPE_SIZE(cmsghdr);
1081#if SANITIZER_GLIBC || SANITIZER_ANDROID
1082CHECK_SIZE_AND_OFFSET(cmsghdr, cmsg_len);
1083#endif
1084CHECK_SIZE_AND_OFFSET(cmsghdr, cmsg_level);
1085CHECK_SIZE_AND_OFFSET(cmsghdr, cmsg_type);
1086
1087#if SANITIZER_LINUX && (__ANDROID_API__ >= 21 || __GLIBC_PREREQ (2, 14))
1088CHECK_TYPE_SIZE(mmsghdr);
1089CHECK_SIZE_AND_OFFSET(mmsghdr, msg_hdr);
1090CHECK_SIZE_AND_OFFSET(mmsghdr, msg_len);
1091#endif
1092
1093COMPILER_CHECK(sizeof(__sanitizer_dirent) <= sizeof(dirent));
1094CHECK_SIZE_AND_OFFSET(dirent, d_ino);
1095#if SANITIZER_APPLE
1096CHECK_SIZE_AND_OFFSET(dirent, d_seekoff);
1097#elif SANITIZER_FREEBSD
1098// There is no 'd_off' field on FreeBSD.
1099#else
1100CHECK_SIZE_AND_OFFSET(dirent, d_off);
1101#endif
1102CHECK_SIZE_AND_OFFSET(dirent, d_reclen);
1103
1104#if SANITIZER_GLIBC
1105COMPILER_CHECK(sizeof(__sanitizer_dirent64) <= sizeof(dirent64));
1106CHECK_SIZE_AND_OFFSET(dirent64, d_ino);
1107CHECK_SIZE_AND_OFFSET(dirent64, d_off);
1108CHECK_SIZE_AND_OFFSET(dirent64, d_reclen);
1109#endif
1110
1111CHECK_TYPE_SIZE(ifconf);
1112CHECK_SIZE_AND_OFFSET(ifconf, ifc_len);
1113CHECK_SIZE_AND_OFFSET(ifconf, ifc_ifcu);
1114
1115CHECK_TYPE_SIZE(pollfd);
1116CHECK_SIZE_AND_OFFSET(pollfd, fd);
1117CHECK_SIZE_AND_OFFSET(pollfd, events);
1118CHECK_SIZE_AND_OFFSET(pollfd, revents);
1119
1120CHECK_TYPE_SIZE(nfds_t);
1121
1122CHECK_TYPE_SIZE(sigset_t);
1123
1124COMPILER_CHECK(sizeof(__sanitizer_sigaction) == sizeof(struct sigaction));
1125// Can't write checks for sa_handler and sa_sigaction due to them being
1126// preprocessor macros.
1127CHECK_STRUCT_SIZE_AND_OFFSET(sigaction, sa_mask);
1128#if !defined(__s390x__) || __GLIBC_PREREQ (2, 20)
1129// On s390x glibc 2.19 and earlier sa_flags was unsigned long, and sa_resv
1130// didn't exist.
1131CHECK_STRUCT_SIZE_AND_OFFSET(sigaction, sa_flags);
1132#endif
1133#if SANITIZER_LINUX && (!SANITIZER_ANDROID || !SANITIZER_MIPS32)
1134CHECK_STRUCT_SIZE_AND_OFFSET(sigaction, sa_restorer);
1135#endif
1136
1137#if SANITIZER_HAS_SIGINFO
1138COMPILER_CHECK(alignof(siginfo_t) == alignof(__sanitizer_siginfo));
1139using __sanitizer_siginfo_t = __sanitizer_siginfo;
1140CHECK_TYPE_SIZE(siginfo_t);
1141CHECK_SIZE_AND_OFFSET(siginfo_t, si_signo);
1142CHECK_SIZE_AND_OFFSET(siginfo_t, si_errno);
1143CHECK_SIZE_AND_OFFSET(siginfo_t, si_code);
1144#endif
1145
1146#if SANITIZER_LINUX
1147CHECK_TYPE_SIZE(__sysctl_args);
1148CHECK_SIZE_AND_OFFSET(__sysctl_args, name);
1149CHECK_SIZE_AND_OFFSET(__sysctl_args, nlen);
1150CHECK_SIZE_AND_OFFSET(__sysctl_args, oldval);
1151CHECK_SIZE_AND_OFFSET(__sysctl_args, oldlenp);
1152CHECK_SIZE_AND_OFFSET(__sysctl_args, newval);
1153CHECK_SIZE_AND_OFFSET(__sysctl_args, newlen);
1154
1155CHECK_TYPE_SIZE(__kernel_uid_t);
1156CHECK_TYPE_SIZE(__kernel_gid_t);
1157
1158#if SANITIZER_USES_UID16_SYSCALLS
1159CHECK_TYPE_SIZE(__kernel_old_uid_t);
1160CHECK_TYPE_SIZE(__kernel_old_gid_t);
1161#endif
1162
1163CHECK_TYPE_SIZE(__kernel_off_t);
1164CHECK_TYPE_SIZE(__kernel_loff_t);
1165CHECK_TYPE_SIZE(__kernel_fd_set);
1166#endif
1167
1168#if !SANITIZER_ANDROID
1169CHECK_TYPE_SIZE(wordexp_t);
1170CHECK_SIZE_AND_OFFSET(wordexp_t, we_wordc);
1171CHECK_SIZE_AND_OFFSET(wordexp_t, we_wordv);
1172CHECK_SIZE_AND_OFFSET(wordexp_t, we_offs);
1173#endif
1174
1175CHECK_TYPE_SIZE(tm);
1176CHECK_SIZE_AND_OFFSET(tm, tm_sec);
1177CHECK_SIZE_AND_OFFSET(tm, tm_min);
1178CHECK_SIZE_AND_OFFSET(tm, tm_hour);
1179CHECK_SIZE_AND_OFFSET(tm, tm_mday);
1180CHECK_SIZE_AND_OFFSET(tm, tm_mon);
1181CHECK_SIZE_AND_OFFSET(tm, tm_year);
1182CHECK_SIZE_AND_OFFSET(tm, tm_wday);
1183CHECK_SIZE_AND_OFFSET(tm, tm_yday);
1184CHECK_SIZE_AND_OFFSET(tm, tm_isdst);
1185CHECK_SIZE_AND_OFFSET(tm, tm_gmtoff);
1186CHECK_SIZE_AND_OFFSET(tm, tm_zone);
1187
1188#if SANITIZER_LINUX
1189CHECK_TYPE_SIZE(mntent);
1190CHECK_SIZE_AND_OFFSET(mntent, mnt_fsname);
1191CHECK_SIZE_AND_OFFSET(mntent, mnt_dir);
1192CHECK_SIZE_AND_OFFSET(mntent, mnt_type);
1193CHECK_SIZE_AND_OFFSET(mntent, mnt_opts);
1194CHECK_SIZE_AND_OFFSET(mntent, mnt_freq);
1195CHECK_SIZE_AND_OFFSET(mntent, mnt_passno);
1196#endif
1197
1198CHECK_TYPE_SIZE(ether_addr);
1199
1200#if SANITIZER_GLIBC || SANITIZER_FREEBSD
1201CHECK_TYPE_SIZE(ipc_perm);
1202# if SANITIZER_FREEBSD
1203CHECK_SIZE_AND_OFFSET(ipc_perm, key);
1204CHECK_SIZE_AND_OFFSET(ipc_perm, seq);
1205# else
1206CHECK_SIZE_AND_OFFSET(ipc_perm, __key);
1207CHECK_SIZE_AND_OFFSET(ipc_perm, __seq);
1208# endif
1209CHECK_SIZE_AND_OFFSET(ipc_perm, uid);
1210CHECK_SIZE_AND_OFFSET(ipc_perm, gid);
1211CHECK_SIZE_AND_OFFSET(ipc_perm, cuid);
1212CHECK_SIZE_AND_OFFSET(ipc_perm, cgid);
1213#if !SANITIZER_LINUX || __GLIBC_PREREQ (2, 31)
1214/* glibc 2.30 and earlier provided 16-bit mode field instead of 32-bit
1215   on many architectures.  */
1216CHECK_SIZE_AND_OFFSET(ipc_perm, mode);
1217#endif
1218
1219CHECK_TYPE_SIZE(shmid_ds);
1220CHECK_SIZE_AND_OFFSET(shmid_ds, shm_perm);
1221CHECK_SIZE_AND_OFFSET(shmid_ds, shm_segsz);
1222CHECK_SIZE_AND_OFFSET(shmid_ds, shm_atime);
1223CHECK_SIZE_AND_OFFSET(shmid_ds, shm_dtime);
1224CHECK_SIZE_AND_OFFSET(shmid_ds, shm_ctime);
1225CHECK_SIZE_AND_OFFSET(shmid_ds, shm_cpid);
1226CHECK_SIZE_AND_OFFSET(shmid_ds, shm_lpid);
1227CHECK_SIZE_AND_OFFSET(shmid_ds, shm_nattch);
1228#endif
1229
1230CHECK_TYPE_SIZE(clock_t);
1231
1232#if SANITIZER_LINUX
1233CHECK_TYPE_SIZE(clockid_t);
1234#endif
1235
1236#if !SANITIZER_ANDROID
1237CHECK_TYPE_SIZE(ifaddrs);
1238CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_next);
1239CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_name);
1240CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_addr);
1241CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_netmask);
1242#if SANITIZER_LINUX || SANITIZER_FREEBSD
1243// Compare against the union, because we can't reach into the union in a
1244// compliant way.
1245#ifdef ifa_dstaddr
1246#undef ifa_dstaddr
1247#endif
1248# if SANITIZER_FREEBSD
1249CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_dstaddr);
1250# else
1251COMPILER_CHECK(sizeof(((__sanitizer_ifaddrs *)nullptr)->ifa_dstaddr) ==
1252               sizeof(((ifaddrs *)nullptr)->ifa_ifu));
1253COMPILER_CHECK(offsetof(__sanitizer_ifaddrs, ifa_dstaddr) ==
1254               offsetof(ifaddrs, ifa_ifu));
1255# endif // SANITIZER_FREEBSD
1256#else
1257CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_dstaddr);
1258#endif // SANITIZER_LINUX
1259CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_data);
1260#endif
1261
1262#if SANITIZER_GLIBC || SANITIZER_ANDROID
1263COMPILER_CHECK(sizeof(__sanitizer_struct_mallinfo) == sizeof(struct mallinfo));
1264#endif
1265
1266#if !SANITIZER_ANDROID
1267CHECK_TYPE_SIZE(timeb);
1268CHECK_SIZE_AND_OFFSET(timeb, time);
1269CHECK_SIZE_AND_OFFSET(timeb, millitm);
1270CHECK_SIZE_AND_OFFSET(timeb, timezone);
1271CHECK_SIZE_AND_OFFSET(timeb, dstflag);
1272#endif
1273
1274CHECK_TYPE_SIZE(passwd);
1275CHECK_SIZE_AND_OFFSET(passwd, pw_name);
1276CHECK_SIZE_AND_OFFSET(passwd, pw_passwd);
1277CHECK_SIZE_AND_OFFSET(passwd, pw_uid);
1278CHECK_SIZE_AND_OFFSET(passwd, pw_gid);
1279CHECK_SIZE_AND_OFFSET(passwd, pw_dir);
1280CHECK_SIZE_AND_OFFSET(passwd, pw_shell);
1281
1282#if !SANITIZER_ANDROID
1283CHECK_SIZE_AND_OFFSET(passwd, pw_gecos);
1284#endif
1285
1286#if SANITIZER_APPLE
1287CHECK_SIZE_AND_OFFSET(passwd, pw_change);
1288CHECK_SIZE_AND_OFFSET(passwd, pw_expire);
1289CHECK_SIZE_AND_OFFSET(passwd, pw_class);
1290#endif
1291
1292
1293CHECK_TYPE_SIZE(group);
1294CHECK_SIZE_AND_OFFSET(group, gr_name);
1295CHECK_SIZE_AND_OFFSET(group, gr_passwd);
1296CHECK_SIZE_AND_OFFSET(group, gr_gid);
1297CHECK_SIZE_AND_OFFSET(group, gr_mem);
1298
1299#if HAVE_RPC_XDR_H && !SANITIZER_APPLE
1300CHECK_TYPE_SIZE(XDR);
1301CHECK_SIZE_AND_OFFSET(XDR, x_op);
1302CHECK_SIZE_AND_OFFSET(XDR, x_ops);
1303CHECK_SIZE_AND_OFFSET(XDR, x_public);
1304CHECK_SIZE_AND_OFFSET(XDR, x_private);
1305CHECK_SIZE_AND_OFFSET(XDR, x_base);
1306CHECK_SIZE_AND_OFFSET(XDR, x_handy);
1307COMPILER_CHECK(__sanitizer_XDR_ENCODE == XDR_ENCODE);
1308COMPILER_CHECK(__sanitizer_XDR_DECODE == XDR_DECODE);
1309COMPILER_CHECK(__sanitizer_XDR_FREE == XDR_FREE);
1310#endif
1311
1312#if SANITIZER_GLIBC
1313COMPILER_CHECK(sizeof(__sanitizer_FILE) <= sizeof(FILE));
1314CHECK_SIZE_AND_OFFSET(FILE, _flags);
1315CHECK_SIZE_AND_OFFSET(FILE, _IO_read_ptr);
1316CHECK_SIZE_AND_OFFSET(FILE, _IO_read_end);
1317CHECK_SIZE_AND_OFFSET(FILE, _IO_read_base);
1318CHECK_SIZE_AND_OFFSET(FILE, _IO_write_ptr);
1319CHECK_SIZE_AND_OFFSET(FILE, _IO_write_end);
1320CHECK_SIZE_AND_OFFSET(FILE, _IO_write_base);
1321CHECK_SIZE_AND_OFFSET(FILE, _IO_buf_base);
1322CHECK_SIZE_AND_OFFSET(FILE, _IO_buf_end);
1323CHECK_SIZE_AND_OFFSET(FILE, _IO_save_base);
1324CHECK_SIZE_AND_OFFSET(FILE, _IO_backup_base);
1325CHECK_SIZE_AND_OFFSET(FILE, _IO_save_end);
1326CHECK_SIZE_AND_OFFSET(FILE, _markers);
1327CHECK_SIZE_AND_OFFSET(FILE, _chain);
1328CHECK_SIZE_AND_OFFSET(FILE, _fileno);
1329
1330COMPILER_CHECK(sizeof(__sanitizer__obstack_chunk) <= sizeof(_obstack_chunk));
1331CHECK_SIZE_AND_OFFSET(_obstack_chunk, limit);
1332CHECK_SIZE_AND_OFFSET(_obstack_chunk, prev);
1333CHECK_TYPE_SIZE(obstack);
1334CHECK_SIZE_AND_OFFSET(obstack, chunk_size);
1335CHECK_SIZE_AND_OFFSET(obstack, chunk);
1336CHECK_SIZE_AND_OFFSET(obstack, object_base);
1337CHECK_SIZE_AND_OFFSET(obstack, next_free);
1338
1339CHECK_TYPE_SIZE(cookie_io_functions_t);
1340CHECK_SIZE_AND_OFFSET(cookie_io_functions_t, read);
1341CHECK_SIZE_AND_OFFSET(cookie_io_functions_t, write);
1342CHECK_SIZE_AND_OFFSET(cookie_io_functions_t, seek);
1343CHECK_SIZE_AND_OFFSET(cookie_io_functions_t, close);
1344#endif  // SANITIZER_GLIBC
1345
1346#if SANITIZER_LINUX || SANITIZER_FREEBSD
1347CHECK_TYPE_SIZE(sem_t);
1348#endif
1349
1350#if SANITIZER_LINUX && defined(__arm__)
1351COMPILER_CHECK(ARM_VFPREGS_SIZE == ARM_VFPREGS_SIZE_ASAN);
1352#endif
1353
1354#endif // SANITIZER_LINUX || SANITIZER_FREEBSD || SANITIZER_APPLE
1355