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