xref: /llvm-project/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_posix.cpp (revision e0cd57decb3aa9eb911b62306b8f8ac88fd97ffd)
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         defined(__sparc__)
100 #      include <asm/ptrace.h>
101 #      ifdef __arm__
102 typedef struct user_fpregs elf_fpregset_t;
103 #   define ARM_VFPREGS_SIZE_ASAN (32 * 8 /*fpregs*/ + 4 /*fpscr*/)
104 #   if !defined(ARM_VFPREGS_SIZE)
105 #     define ARM_VFPREGS_SIZE ARM_VFPREGS_SIZE_ASAN
106 #   endif
107 #  endif
108 # endif
109 # include <semaphore.h>
110 #endif
111 
112 #if !SANITIZER_ANDROID
113 #include <ifaddrs.h>
114 #include <sys/ucontext.h>
115 #include <wordexp.h>
116 #endif
117 
118 #if SANITIZER_LINUX
119 #if SANITIZER_GLIBC
120 #include <fstab.h>
121 #      include <linux/filter.h>
122 #      include <net/if_ppp.h>
123 #      include <netax25/ax25.h>
124 #      include <netipx/ipx.h>
125 #      include <netrom/netrom.h>
126 #      include <obstack.h>
127 #      if HAVE_RPC_XDR_H
128 #        include <rpc/xdr.h>
129 #      endif
130 #      include <scsi/scsi.h>
131 #else
132 #include <linux/if_ppp.h>
133 #include <linux/kd.h>
134 #include <linux/ppp_defs.h>
135 #endif  // SANITIZER_GLIBC
136 
137 #if SANITIZER_ANDROID
138 #include <linux/mtio.h>
139 #else
140 #include <glob.h>
141 #include <mqueue.h>
142 #include <sys/kd.h>
143 #include <sys/mtio.h>
144 #include <sys/shm.h>
145 #include <sys/statvfs.h>
146 #include <sys/timex.h>
147 #if defined(__mips64)
148 # include <sys/procfs.h>
149 #endif
150 #include <sys/user.h>
151 #include <linux/if_eql.h>
152 #include <linux/if_plip.h>
153 #include <linux/lp.h>
154 #include <linux/mroute.h>
155 #include <linux/mroute6.h>
156 #include <linux/scc.h>
157 #include <linux/serial.h>
158 #include <sys/msg.h>
159 #include <sys/ipc.h>
160 #endif  // SANITIZER_ANDROID
161 
162 #include <link.h>
163 #include <sys/vfs.h>
164 #include <sys/epoll.h>
165 #include <linux/capability.h>
166 #else
167 #include <fstab.h>
168 #endif // SANITIZER_LINUX
169 
170 #if SANITIZER_APPLE
171 #include <net/ethernet.h>
172 #include <sys/filio.h>
173 #include <sys/sockio.h>
174 #endif
175 
176 // Include these after system headers to avoid name clashes and ambiguities.
177 #  include "sanitizer_common.h"
178 #  include "sanitizer_internal_defs.h"
179 #  include "sanitizer_platform_interceptors.h"
180 #  include "sanitizer_platform_limits_posix.h"
181 
182 namespace __sanitizer {
183   unsigned struct_utsname_sz = sizeof(struct utsname);
184   unsigned struct_stat_sz = sizeof(struct stat);
185 #if SANITIZER_HAS_STAT64
186   unsigned struct_stat64_sz = sizeof(struct stat64);
187 #endif // SANITIZER_HAS_STAT64
188   unsigned struct_rusage_sz = sizeof(struct rusage);
189   unsigned struct_tm_sz = sizeof(struct tm);
190   unsigned struct_passwd_sz = sizeof(struct passwd);
191   unsigned struct_group_sz = sizeof(struct group);
192   unsigned siginfo_t_sz = sizeof(siginfo_t);
193   unsigned struct_sigaction_sz = sizeof(struct sigaction);
194   unsigned struct_stack_t_sz = sizeof(stack_t);
195   unsigned struct_itimerval_sz = sizeof(struct itimerval);
196   unsigned pthread_t_sz = sizeof(pthread_t);
197   unsigned pthread_mutex_t_sz = sizeof(pthread_mutex_t);
198   unsigned pthread_cond_t_sz = sizeof(pthread_cond_t);
199   unsigned pid_t_sz = sizeof(pid_t);
200   unsigned timeval_sz = sizeof(timeval);
201   unsigned uid_t_sz = sizeof(uid_t);
202   unsigned gid_t_sz = sizeof(gid_t);
203   unsigned mbstate_t_sz = sizeof(mbstate_t);
204   unsigned sigset_t_sz = sizeof(sigset_t);
205   unsigned struct_timezone_sz = sizeof(struct timezone);
206   unsigned struct_tms_sz = sizeof(struct tms);
207   unsigned struct_sigevent_sz = sizeof(struct sigevent);
208   unsigned struct_sched_param_sz = sizeof(struct sched_param);
209   unsigned struct_regex_sz = sizeof(regex_t);
210   unsigned struct_regmatch_sz = sizeof(regmatch_t);
211 
212 #if SANITIZER_HAS_STATFS64
213   unsigned struct_statfs64_sz = sizeof(struct statfs64);
214 #endif // SANITIZER_HAS_STATFS64
215 
216 #if SANITIZER_GLIBC || SANITIZER_FREEBSD || SANITIZER_NETBSD || SANITIZER_APPLE
217   unsigned struct_fstab_sz = sizeof(struct fstab);
218 #endif  // SANITIZER_GLIBC || SANITIZER_FREEBSD || SANITIZER_NETBSD ||
219         // SANITIZER_APPLE
220 #if !SANITIZER_ANDROID
221   unsigned struct_statfs_sz = sizeof(struct statfs);
222   unsigned struct_sockaddr_sz = sizeof(struct sockaddr);
223 
224   unsigned ucontext_t_sz(void *ctx) {
225 #    if SANITIZER_GLIBC && SANITIZER_X64
226     // Added in Linux kernel 3.4.0, merged to glibc in 2.16
227 #      ifndef FP_XSTATE_MAGIC1
228 #        define FP_XSTATE_MAGIC1 0x46505853U
229 #      endif
230     // See kernel arch/x86/kernel/fpu/signal.c for details.
231     const auto *fpregs = static_cast<ucontext_t *>(ctx)->uc_mcontext.fpregs;
232     // The member names differ across header versions, but the actual layout
233     // is always the same.  So avoid using members, just use arithmetic.
234     const uint32_t *after_xmm =
235         reinterpret_cast<const uint32_t *>(fpregs + 1) - 24;
236     if (after_xmm[12] == FP_XSTATE_MAGIC1)
237       return reinterpret_cast<const char *>(fpregs) + after_xmm[13] -
238              static_cast<const char *>(ctx);
239 #    endif
240     return sizeof(ucontext_t);
241   }
242 #  endif  // !SANITIZER_ANDROID
243 
244 #  if SANITIZER_LINUX
245   unsigned struct_epoll_event_sz = sizeof(struct epoll_event);
246   unsigned struct_sysinfo_sz = sizeof(struct sysinfo);
247   unsigned __user_cap_header_struct_sz =
248       sizeof(struct __user_cap_header_struct);
249   unsigned __user_cap_data_struct_sz(void *hdrp) {
250     int u32s = 0;
251     if (hdrp) {
252       switch (((struct __user_cap_header_struct *)hdrp)->version) {
253       case _LINUX_CAPABILITY_VERSION_1:
254         u32s = _LINUX_CAPABILITY_U32S_1;
255         break;
256       case _LINUX_CAPABILITY_VERSION_2:
257         u32s = _LINUX_CAPABILITY_U32S_2;
258         break;
259       case _LINUX_CAPABILITY_VERSION_3:
260         u32s = _LINUX_CAPABILITY_U32S_3;
261         break;
262       }
263     }
264     return sizeof(struct __user_cap_data_struct) * u32s;
265   }
266   unsigned struct_new_utsname_sz = sizeof(struct new_utsname);
267   unsigned struct_old_utsname_sz = sizeof(struct old_utsname);
268   unsigned struct_oldold_utsname_sz = sizeof(struct oldold_utsname);
269 #endif // SANITIZER_LINUX
270 
271 #if SANITIZER_LINUX
272   unsigned struct_rlimit_sz = sizeof(struct rlimit);
273   unsigned struct_timespec_sz = sizeof(struct timespec);
274   unsigned struct_utimbuf_sz = sizeof(struct utimbuf);
275   unsigned struct_itimerspec_sz = sizeof(struct itimerspec);
276 #endif // SANITIZER_LINUX
277 
278 #if SANITIZER_GLIBC
279   // Use pre-computed size of struct ustat to avoid <sys/ustat.h> which
280   // has been removed from glibc 2.28.
281 #if defined(__aarch64__) || defined(__s390x__) || defined(__mips64) ||     \
282     defined(__powerpc64__) || defined(__arch64__) || defined(__sparcv9) || \
283     defined(__x86_64__) || SANITIZER_RISCV64
284 #define SIZEOF_STRUCT_USTAT 32
285 #    elif defined(__arm__) || defined(__i386__) || defined(__mips__) ||    \
286         defined(__powerpc__) || defined(__s390__) || defined(__sparc__) || \
287         defined(__hexagon__)
288 #      define SIZEOF_STRUCT_USTAT 20
289 #    elif defined(__loongarch__)
290   // Not used. The minimum Glibc version available for LoongArch is 2.36
291   // so ustat() wrapper is already gone.
292 #      define SIZEOF_STRUCT_USTAT 0
293 #    else
294 #      error Unknown size of struct ustat
295 #    endif
296   unsigned struct_ustat_sz = SIZEOF_STRUCT_USTAT;
297   unsigned struct_rlimit64_sz = sizeof(struct rlimit64);
298   unsigned struct_statvfs64_sz = sizeof(struct statvfs64);
299 #endif // SANITIZER_GLIBC
300 
301 #if SANITIZER_LINUX && !SANITIZER_ANDROID
302   unsigned struct_timex_sz = sizeof(struct timex);
303   unsigned struct_msqid_ds_sz = sizeof(struct msqid_ds);
304   unsigned struct_mq_attr_sz = sizeof(struct mq_attr);
305   unsigned struct_statvfs_sz = sizeof(struct statvfs);
306 #endif // SANITIZER_LINUX && !SANITIZER_ANDROID
307 
308   const uptr sig_ign = (uptr)SIG_IGN;
309   const uptr sig_dfl = (uptr)SIG_DFL;
310   const uptr sig_err = (uptr)SIG_ERR;
311   const uptr sa_siginfo = (uptr)SA_SIGINFO;
312 
313 #if SANITIZER_LINUX
314   int e_tabsz = (int)E_TABSZ;
315 #endif
316 
317 
318 #if SANITIZER_LINUX && !SANITIZER_ANDROID
319   unsigned struct_shminfo_sz = sizeof(struct shminfo);
320   unsigned struct_shm_info_sz = sizeof(struct shm_info);
321   int shmctl_ipc_stat = (int)IPC_STAT;
322   int shmctl_ipc_info = (int)IPC_INFO;
323   int shmctl_shm_info = (int)SHM_INFO;
324   int shmctl_shm_stat = (int)SHM_STAT;
325 #endif
326 
327 #if !SANITIZER_APPLE && !SANITIZER_FREEBSD
328   unsigned struct_utmp_sz = sizeof(struct utmp);
329 #endif
330 #if !SANITIZER_ANDROID
331   unsigned struct_utmpx_sz = sizeof(struct utmpx);
332 #endif
333 
334   int map_fixed = MAP_FIXED;
335 
336   int af_inet = (int)AF_INET;
337   int af_inet6 = (int)AF_INET6;
338 
339   uptr __sanitizer_in_addr_sz(int af) {
340     if (af == AF_INET)
341       return sizeof(struct in_addr);
342     else if (af == AF_INET6)
343       return sizeof(struct in6_addr);
344     else
345       return 0;
346   }
347 
348 #if SANITIZER_LINUX
349 unsigned struct_ElfW_Phdr_sz = sizeof(ElfW(Phdr));
350 #elif SANITIZER_FREEBSD
351 unsigned struct_ElfW_Phdr_sz = sizeof(Elf_Phdr);
352 #endif
353 
354 #if SANITIZER_GLIBC
355   int glob_nomatch = GLOB_NOMATCH;
356   int glob_altdirfunc = GLOB_ALTDIRFUNC;
357 #endif
358 
359 #  if !SANITIZER_ANDROID
360   const int wordexp_wrde_dooffs = WRDE_DOOFFS;
361 #  endif  // !SANITIZER_ANDROID
362 
363 #  if SANITIZER_LINUX && !SANITIZER_ANDROID &&                               \
364       (defined(__i386) || defined(__x86_64) || defined(__mips64) ||          \
365        defined(__powerpc64__) || defined(__aarch64__) || defined(__arm__) || \
366        defined(__s390__) || defined(__loongarch__) || SANITIZER_RISCV64 ||   \
367        defined(__sparc__))
368 #    if defined(__mips64) || defined(__powerpc64__) || defined(__arm__)
369   unsigned struct_user_regs_struct_sz = sizeof(struct pt_regs);
370   unsigned struct_user_fpregs_struct_sz = sizeof(elf_fpregset_t);
371 #elif SANITIZER_RISCV64
372   unsigned struct_user_regs_struct_sz = sizeof(struct user_regs_struct);
373   unsigned struct_user_fpregs_struct_sz = sizeof(struct __riscv_q_ext_state);
374 #elif defined(__aarch64__)
375   unsigned struct_user_regs_struct_sz = sizeof(struct user_pt_regs);
376   unsigned struct_user_fpregs_struct_sz = sizeof(struct user_fpsimd_state);
377 #elif defined(__loongarch__)
378   unsigned struct_user_regs_struct_sz = sizeof(struct user_pt_regs);
379   unsigned struct_user_fpregs_struct_sz = sizeof(struct user_fp_state);
380 #elif defined(__s390__)
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 #    elif defined(__sparc__)
384   unsigned struct_user_regs_struct_sz = sizeof(struct sunos_regs);
385   unsigned struct_user_fpregs_struct_sz = sizeof(struct sunos_fp);
386 #    else
387   unsigned struct_user_regs_struct_sz = sizeof(struct user_regs_struct);
388   unsigned struct_user_fpregs_struct_sz = sizeof(struct user_fpregs_struct);
389 #    endif  // __mips64 || __powerpc64__ || __aarch64__ || __loongarch__
390 #    if defined(__x86_64) || defined(__mips64) || defined(__powerpc64__) || \
391         defined(__aarch64__) || defined(__arm__) || defined(__s390__) ||    \
392         defined(__loongarch__) || SANITIZER_RISCV64 || defined(__sparc__)
393   unsigned struct_user_fpxregs_struct_sz = 0;
394 #else
395   unsigned struct_user_fpxregs_struct_sz = sizeof(struct user_fpxregs_struct);
396 #endif // __x86_64 || __mips64 || __powerpc64__ || __aarch64__ || __arm__
397   // || __s390__ || __loongarch__ || SANITIZER_RISCV64 || __sparc__
398 #    ifdef __arm__
399   unsigned struct_user_vfpregs_struct_sz = ARM_VFPREGS_SIZE;
400 #else
401   unsigned struct_user_vfpregs_struct_sz = 0;
402 #endif
403 
404   int ptrace_peektext = PTRACE_PEEKTEXT;
405   int ptrace_peekdata = PTRACE_PEEKDATA;
406   int ptrace_peekuser = PTRACE_PEEKUSER;
407 #if (defined(PTRACE_GETREGS) && defined(PTRACE_SETREGS)) || \
408     (defined(PT_GETREGS) && defined(PT_SETREGS))
409   int ptrace_getregs = PTRACE_GETREGS;
410   int ptrace_setregs = PTRACE_SETREGS;
411 #else
412   int ptrace_getregs = -1;
413   int ptrace_setregs = -1;
414 #endif
415 #if (defined(PTRACE_GETFPREGS) && defined(PTRACE_SETFPREGS)) || \
416     (defined(PT_GETFPREGS) && defined(PT_SETFPREGS))
417   int ptrace_getfpregs = PTRACE_GETFPREGS;
418   int ptrace_setfpregs = PTRACE_SETFPREGS;
419 #else
420   int ptrace_getfpregs = -1;
421   int ptrace_setfpregs = -1;
422 #endif
423 #if (defined(PTRACE_GETFPXREGS) && defined(PTRACE_SETFPXREGS)) || \
424     (defined(PT_GETFPXREGS) && defined(PT_SETFPXREGS))
425   int ptrace_getfpxregs = PTRACE_GETFPXREGS;
426   int ptrace_setfpxregs = PTRACE_SETFPXREGS;
427 #else
428   int ptrace_getfpxregs = -1;
429   int ptrace_setfpxregs = -1;
430 #endif // PTRACE_GETFPXREGS/PTRACE_SETFPXREGS
431 #if defined(PTRACE_GETVFPREGS) && defined(PTRACE_SETVFPREGS)
432   int ptrace_getvfpregs = PTRACE_GETVFPREGS;
433   int ptrace_setvfpregs = PTRACE_SETVFPREGS;
434 #else
435   int ptrace_getvfpregs = -1;
436   int ptrace_setvfpregs = -1;
437 #endif
438   int ptrace_geteventmsg = PTRACE_GETEVENTMSG;
439 #if (defined(PTRACE_GETSIGINFO) && defined(PTRACE_SETSIGINFO)) ||              \
440     (defined(PT_GETSIGINFO) && defined(PT_SETSIGINFO))
441   int ptrace_getsiginfo = PTRACE_GETSIGINFO;
442   int ptrace_setsiginfo = PTRACE_SETSIGINFO;
443 #else
444   int ptrace_getsiginfo = -1;
445   int ptrace_setsiginfo = -1;
446 #endif // PTRACE_GETSIGINFO/PTRACE_SETSIGINFO
447 #if defined(PTRACE_GETREGSET) && defined(PTRACE_SETREGSET)
448   int ptrace_getregset = PTRACE_GETREGSET;
449   int ptrace_setregset = PTRACE_SETREGSET;
450 #else
451   int ptrace_getregset = -1;
452   int ptrace_setregset = -1;
453 #endif // PTRACE_GETREGSET/PTRACE_SETREGSET
454 #endif
455 
456   unsigned path_max = PATH_MAX;
457 
458   // ioctl arguments
459   unsigned struct_ifreq_sz = sizeof(struct ifreq);
460   unsigned struct_termios_sz = sizeof(struct termios);
461   unsigned struct_winsize_sz = sizeof(struct winsize);
462 
463 #if SANITIZER_LINUX
464   unsigned struct_arpreq_sz = sizeof(struct arpreq);
465   unsigned struct_cdrom_msf_sz = sizeof(struct cdrom_msf);
466   unsigned struct_cdrom_multisession_sz = sizeof(struct cdrom_multisession);
467   unsigned struct_cdrom_read_audio_sz = sizeof(struct cdrom_read_audio);
468   unsigned struct_cdrom_subchnl_sz = sizeof(struct cdrom_subchnl);
469   unsigned struct_cdrom_ti_sz = sizeof(struct cdrom_ti);
470   unsigned struct_cdrom_tocentry_sz = sizeof(struct cdrom_tocentry);
471   unsigned struct_cdrom_tochdr_sz = sizeof(struct cdrom_tochdr);
472   unsigned struct_cdrom_volctrl_sz = sizeof(struct cdrom_volctrl);
473   unsigned struct_ff_effect_sz = sizeof(struct ff_effect);
474   unsigned struct_floppy_drive_params_sz = sizeof(struct floppy_drive_params);
475   unsigned struct_floppy_drive_struct_sz = sizeof(struct floppy_drive_struct);
476   unsigned struct_floppy_fdc_state_sz = sizeof(struct floppy_fdc_state);
477   unsigned struct_floppy_max_errors_sz = sizeof(struct floppy_max_errors);
478   unsigned struct_floppy_raw_cmd_sz = sizeof(struct floppy_raw_cmd);
479   unsigned struct_floppy_struct_sz = sizeof(struct floppy_struct);
480   unsigned struct_floppy_write_errors_sz = sizeof(struct floppy_write_errors);
481   unsigned struct_format_descr_sz = sizeof(struct format_descr);
482   unsigned struct_hd_driveid_sz = sizeof(struct hd_driveid);
483   unsigned struct_hd_geometry_sz = sizeof(struct hd_geometry);
484   unsigned struct_input_absinfo_sz = sizeof(struct input_absinfo);
485   unsigned struct_input_id_sz = sizeof(struct input_id);
486   unsigned struct_mtpos_sz = sizeof(struct mtpos);
487   unsigned struct_rtentry_sz = sizeof(struct rtentry);
488 #if SANITIZER_GLIBC || SANITIZER_ANDROID
489   unsigned struct_termio_sz = sizeof(struct termio);
490 #endif
491   unsigned struct_vt_consize_sz = sizeof(struct vt_consize);
492   unsigned struct_vt_sizes_sz = sizeof(struct vt_sizes);
493   unsigned struct_vt_stat_sz = sizeof(struct vt_stat);
494 #endif // SANITIZER_LINUX
495 
496 #if SANITIZER_LINUX
497 #if SOUND_VERSION >= 0x040000
498   unsigned struct_copr_buffer_sz = 0;
499   unsigned struct_copr_debug_buf_sz = 0;
500   unsigned struct_copr_msg_sz = 0;
501 #else
502   unsigned struct_copr_buffer_sz = sizeof(struct copr_buffer);
503   unsigned struct_copr_debug_buf_sz = sizeof(struct copr_debug_buf);
504   unsigned struct_copr_msg_sz = sizeof(struct copr_msg);
505 #endif
506   unsigned struct_midi_info_sz = sizeof(struct midi_info);
507   unsigned struct_mtget_sz = sizeof(struct mtget);
508   unsigned struct_mtop_sz = sizeof(struct mtop);
509   unsigned struct_sbi_instrument_sz = sizeof(struct sbi_instrument);
510   unsigned struct_seq_event_rec_sz = sizeof(struct seq_event_rec);
511   unsigned struct_synth_info_sz = sizeof(struct synth_info);
512   unsigned struct_vt_mode_sz = sizeof(struct vt_mode);
513 #endif // SANITIZER_LINUX
514 
515 #if SANITIZER_GLIBC
516   unsigned struct_ax25_parms_struct_sz = sizeof(struct ax25_parms_struct);
517 #if EV_VERSION > (0x010000)
518   unsigned struct_input_keymap_entry_sz = sizeof(struct input_keymap_entry);
519 #else
520   unsigned struct_input_keymap_entry_sz = 0;
521 #endif
522   unsigned struct_ipx_config_data_sz = sizeof(struct ipx_config_data);
523   unsigned struct_kbdiacrs_sz = sizeof(struct kbdiacrs);
524   unsigned struct_kbentry_sz = sizeof(struct kbentry);
525   unsigned struct_kbkeycode_sz = sizeof(struct kbkeycode);
526   unsigned struct_kbsentry_sz = sizeof(struct kbsentry);
527   unsigned struct_mtconfiginfo_sz = sizeof(struct mtconfiginfo);
528   unsigned struct_nr_parms_struct_sz = sizeof(struct nr_parms_struct);
529   unsigned struct_scc_modem_sz = sizeof(struct scc_modem);
530   unsigned struct_scc_stat_sz = sizeof(struct scc_stat);
531   unsigned struct_serial_multiport_struct_sz
532       = sizeof(struct serial_multiport_struct);
533   unsigned struct_serial_struct_sz = sizeof(struct serial_struct);
534   unsigned struct_sockaddr_ax25_sz = sizeof(struct sockaddr_ax25);
535   unsigned struct_unimapdesc_sz = sizeof(struct unimapdesc);
536   unsigned struct_unimapinit_sz = sizeof(struct unimapinit);
537 
538   unsigned struct_audio_buf_info_sz = sizeof(struct audio_buf_info);
539   unsigned struct_ppp_stats_sz = sizeof(struct ppp_stats);
540   unsigned struct_sock_fprog_sz = sizeof(struct sock_fprog);
541 #  endif  // SANITIZER_GLIBC
542 
543 #  if !SANITIZER_ANDROID && !SANITIZER_APPLE
544   unsigned struct_sioc_sg_req_sz = sizeof(struct sioc_sg_req);
545   unsigned struct_sioc_vif_req_sz = sizeof(struct sioc_vif_req);
546 #endif
547 
548   unsigned fpos_t_sz = sizeof(fpos_t);
549 
550   const unsigned long __sanitizer_bufsiz = BUFSIZ;
551 
552   const unsigned IOCTL_NOT_PRESENT = 0;
553 
554   unsigned IOCTL_FIOASYNC = FIOASYNC;
555   unsigned IOCTL_FIOCLEX = FIOCLEX;
556   unsigned IOCTL_FIOGETOWN = FIOGETOWN;
557   unsigned IOCTL_FIONBIO = FIONBIO;
558   unsigned IOCTL_FIONCLEX = FIONCLEX;
559   unsigned IOCTL_FIOSETOWN = FIOSETOWN;
560   unsigned IOCTL_SIOCADDMULTI = SIOCADDMULTI;
561   unsigned IOCTL_SIOCATMARK = SIOCATMARK;
562   unsigned IOCTL_SIOCDELMULTI = SIOCDELMULTI;
563   unsigned IOCTL_SIOCGIFADDR = SIOCGIFADDR;
564   unsigned IOCTL_SIOCGIFBRDADDR = SIOCGIFBRDADDR;
565   unsigned IOCTL_SIOCGIFCONF = SIOCGIFCONF;
566   unsigned IOCTL_SIOCGIFDSTADDR = SIOCGIFDSTADDR;
567   unsigned IOCTL_SIOCGIFFLAGS = SIOCGIFFLAGS;
568   unsigned IOCTL_SIOCGIFMETRIC = SIOCGIFMETRIC;
569   unsigned IOCTL_SIOCGIFMTU = SIOCGIFMTU;
570   unsigned IOCTL_SIOCGIFNETMASK = SIOCGIFNETMASK;
571   unsigned IOCTL_SIOCGPGRP = SIOCGPGRP;
572   unsigned IOCTL_SIOCSIFADDR = SIOCSIFADDR;
573   unsigned IOCTL_SIOCSIFBRDADDR = SIOCSIFBRDADDR;
574   unsigned IOCTL_SIOCSIFDSTADDR = SIOCSIFDSTADDR;
575   unsigned IOCTL_SIOCSIFFLAGS = SIOCSIFFLAGS;
576   unsigned IOCTL_SIOCSIFMETRIC = SIOCSIFMETRIC;
577   unsigned IOCTL_SIOCSIFMTU = SIOCSIFMTU;
578   unsigned IOCTL_SIOCSIFNETMASK = SIOCSIFNETMASK;
579   unsigned IOCTL_SIOCSPGRP = SIOCSPGRP;
580   unsigned IOCTL_TIOCCONS = TIOCCONS;
581   unsigned IOCTL_TIOCEXCL = TIOCEXCL;
582   unsigned IOCTL_TIOCGETD = TIOCGETD;
583   unsigned IOCTL_TIOCGPGRP = TIOCGPGRP;
584   unsigned IOCTL_TIOCGWINSZ = TIOCGWINSZ;
585   unsigned IOCTL_TIOCMBIC = TIOCMBIC;
586   unsigned IOCTL_TIOCMBIS = TIOCMBIS;
587   unsigned IOCTL_TIOCMGET = TIOCMGET;
588   unsigned IOCTL_TIOCMSET = TIOCMSET;
589   unsigned IOCTL_TIOCNOTTY = TIOCNOTTY;
590   unsigned IOCTL_TIOCNXCL = TIOCNXCL;
591   unsigned IOCTL_TIOCOUTQ = TIOCOUTQ;
592   unsigned IOCTL_TIOCPKT = TIOCPKT;
593   unsigned IOCTL_TIOCSCTTY = TIOCSCTTY;
594   unsigned IOCTL_TIOCSETD = TIOCSETD;
595   unsigned IOCTL_TIOCSPGRP = TIOCSPGRP;
596   unsigned IOCTL_TIOCSTI = TIOCSTI;
597   unsigned IOCTL_TIOCSWINSZ = TIOCSWINSZ;
598 #if SANITIZER_LINUX && !SANITIZER_ANDROID
599   unsigned IOCTL_SIOCGETSGCNT = SIOCGETSGCNT;
600   unsigned IOCTL_SIOCGETVIFCNT = SIOCGETVIFCNT;
601 #endif
602 
603 #if SANITIZER_LINUX
604   unsigned IOCTL_EVIOCGABS = EVIOCGABS(0);
605   unsigned IOCTL_EVIOCGBIT = EVIOCGBIT(0, 0);
606   unsigned IOCTL_EVIOCGEFFECTS = EVIOCGEFFECTS;
607   unsigned IOCTL_EVIOCGID = EVIOCGID;
608   unsigned IOCTL_EVIOCGKEY = EVIOCGKEY(0);
609   unsigned IOCTL_EVIOCGKEYCODE = EVIOCGKEYCODE;
610   unsigned IOCTL_EVIOCGLED = EVIOCGLED(0);
611   unsigned IOCTL_EVIOCGNAME = EVIOCGNAME(0);
612   unsigned IOCTL_EVIOCGPHYS = EVIOCGPHYS(0);
613   unsigned IOCTL_EVIOCGRAB = EVIOCGRAB;
614   unsigned IOCTL_EVIOCGREP = EVIOCGREP;
615   unsigned IOCTL_EVIOCGSND = EVIOCGSND(0);
616   unsigned IOCTL_EVIOCGSW = EVIOCGSW(0);
617   unsigned IOCTL_EVIOCGUNIQ = EVIOCGUNIQ(0);
618   unsigned IOCTL_EVIOCGVERSION = EVIOCGVERSION;
619   unsigned IOCTL_EVIOCRMFF = EVIOCRMFF;
620   unsigned IOCTL_EVIOCSABS = EVIOCSABS(0);
621   unsigned IOCTL_EVIOCSFF = EVIOCSFF;
622   unsigned IOCTL_EVIOCSKEYCODE = EVIOCSKEYCODE;
623   unsigned IOCTL_EVIOCSREP = EVIOCSREP;
624   unsigned IOCTL_BLKFLSBUF = BLKFLSBUF;
625   unsigned IOCTL_BLKGETSIZE = BLKGETSIZE;
626   unsigned IOCTL_BLKRAGET = BLKRAGET;
627   unsigned IOCTL_BLKRASET = BLKRASET;
628   unsigned IOCTL_BLKROGET = BLKROGET;
629   unsigned IOCTL_BLKROSET = BLKROSET;
630   unsigned IOCTL_BLKRRPART = BLKRRPART;
631   unsigned IOCTL_BLKFRASET = BLKFRASET;
632   unsigned IOCTL_BLKFRAGET = BLKFRAGET;
633   unsigned IOCTL_BLKSECTSET = BLKSECTSET;
634   unsigned IOCTL_BLKSECTGET = BLKSECTGET;
635   unsigned IOCTL_BLKSSZGET = BLKSSZGET;
636   unsigned IOCTL_BLKBSZGET = BLKBSZGET;
637   unsigned IOCTL_BLKBSZSET = BLKBSZSET;
638   unsigned IOCTL_BLKGETSIZE64 = BLKGETSIZE64;
639   unsigned IOCTL_CDROMAUDIOBUFSIZ = CDROMAUDIOBUFSIZ;
640   unsigned IOCTL_CDROMEJECT = CDROMEJECT;
641   unsigned IOCTL_CDROMEJECT_SW = CDROMEJECT_SW;
642   unsigned IOCTL_CDROMMULTISESSION = CDROMMULTISESSION;
643   unsigned IOCTL_CDROMPAUSE = CDROMPAUSE;
644   unsigned IOCTL_CDROMPLAYMSF = CDROMPLAYMSF;
645   unsigned IOCTL_CDROMPLAYTRKIND = CDROMPLAYTRKIND;
646   unsigned IOCTL_CDROMREADAUDIO = CDROMREADAUDIO;
647   unsigned IOCTL_CDROMREADCOOKED = CDROMREADCOOKED;
648   unsigned IOCTL_CDROMREADMODE1 = CDROMREADMODE1;
649   unsigned IOCTL_CDROMREADMODE2 = CDROMREADMODE2;
650   unsigned IOCTL_CDROMREADRAW = CDROMREADRAW;
651   unsigned IOCTL_CDROMREADTOCENTRY = CDROMREADTOCENTRY;
652   unsigned IOCTL_CDROMREADTOCHDR = CDROMREADTOCHDR;
653   unsigned IOCTL_CDROMRESET = CDROMRESET;
654   unsigned IOCTL_CDROMRESUME = CDROMRESUME;
655   unsigned IOCTL_CDROMSEEK = CDROMSEEK;
656   unsigned IOCTL_CDROMSTART = CDROMSTART;
657   unsigned IOCTL_CDROMSTOP = CDROMSTOP;
658   unsigned IOCTL_CDROMSUBCHNL = CDROMSUBCHNL;
659   unsigned IOCTL_CDROMVOLCTRL = CDROMVOLCTRL;
660   unsigned IOCTL_CDROMVOLREAD = CDROMVOLREAD;
661   unsigned IOCTL_CDROM_GET_UPC = CDROM_GET_UPC;
662   unsigned IOCTL_FDCLRPRM = FDCLRPRM;
663   unsigned IOCTL_FDDEFPRM = FDDEFPRM;
664   unsigned IOCTL_FDFLUSH = FDFLUSH;
665   unsigned IOCTL_FDFMTBEG = FDFMTBEG;
666   unsigned IOCTL_FDFMTEND = FDFMTEND;
667   unsigned IOCTL_FDFMTTRK = FDFMTTRK;
668   unsigned IOCTL_FDGETDRVPRM = FDGETDRVPRM;
669   unsigned IOCTL_FDGETDRVSTAT = FDGETDRVSTAT;
670   unsigned IOCTL_FDGETDRVTYP = FDGETDRVTYP;
671   unsigned IOCTL_FDGETFDCSTAT = FDGETFDCSTAT;
672   unsigned IOCTL_FDGETMAXERRS = FDGETMAXERRS;
673   unsigned IOCTL_FDGETPRM = FDGETPRM;
674   unsigned IOCTL_FDMSGOFF = FDMSGOFF;
675   unsigned IOCTL_FDMSGON = FDMSGON;
676   unsigned IOCTL_FDPOLLDRVSTAT = FDPOLLDRVSTAT;
677   unsigned IOCTL_FDRAWCMD = FDRAWCMD;
678   unsigned IOCTL_FDRESET = FDRESET;
679   unsigned IOCTL_FDSETDRVPRM = FDSETDRVPRM;
680   unsigned IOCTL_FDSETEMSGTRESH = FDSETEMSGTRESH;
681   unsigned IOCTL_FDSETMAXERRS = FDSETMAXERRS;
682   unsigned IOCTL_FDSETPRM = FDSETPRM;
683   unsigned IOCTL_FDTWADDLE = FDTWADDLE;
684   unsigned IOCTL_FDWERRORCLR = FDWERRORCLR;
685   unsigned IOCTL_FDWERRORGET = FDWERRORGET;
686   unsigned IOCTL_HDIO_DRIVE_CMD = HDIO_DRIVE_CMD;
687   unsigned IOCTL_HDIO_GETGEO = HDIO_GETGEO;
688   unsigned IOCTL_HDIO_GET_32BIT = HDIO_GET_32BIT;
689   unsigned IOCTL_HDIO_GET_DMA = HDIO_GET_DMA;
690   unsigned IOCTL_HDIO_GET_IDENTITY = HDIO_GET_IDENTITY;
691   unsigned IOCTL_HDIO_GET_KEEPSETTINGS = HDIO_GET_KEEPSETTINGS;
692   unsigned IOCTL_HDIO_GET_MULTCOUNT = HDIO_GET_MULTCOUNT;
693   unsigned IOCTL_HDIO_GET_NOWERR = HDIO_GET_NOWERR;
694   unsigned IOCTL_HDIO_GET_UNMASKINTR = HDIO_GET_UNMASKINTR;
695   unsigned IOCTL_HDIO_SET_32BIT = HDIO_SET_32BIT;
696   unsigned IOCTL_HDIO_SET_DMA = HDIO_SET_DMA;
697   unsigned IOCTL_HDIO_SET_KEEPSETTINGS = HDIO_SET_KEEPSETTINGS;
698   unsigned IOCTL_HDIO_SET_MULTCOUNT = HDIO_SET_MULTCOUNT;
699   unsigned IOCTL_HDIO_SET_NOWERR = HDIO_SET_NOWERR;
700   unsigned IOCTL_HDIO_SET_UNMASKINTR = HDIO_SET_UNMASKINTR;
701   unsigned IOCTL_MTIOCPOS = MTIOCPOS;
702   unsigned IOCTL_PPPIOCGASYNCMAP = PPPIOCGASYNCMAP;
703   unsigned IOCTL_PPPIOCGDEBUG = PPPIOCGDEBUG;
704   unsigned IOCTL_PPPIOCGFLAGS = PPPIOCGFLAGS;
705   unsigned IOCTL_PPPIOCGUNIT = PPPIOCGUNIT;
706   unsigned IOCTL_PPPIOCGXASYNCMAP = PPPIOCGXASYNCMAP;
707   unsigned IOCTL_PPPIOCSASYNCMAP = PPPIOCSASYNCMAP;
708   unsigned IOCTL_PPPIOCSDEBUG = PPPIOCSDEBUG;
709   unsigned IOCTL_PPPIOCSFLAGS = PPPIOCSFLAGS;
710   unsigned IOCTL_PPPIOCSMAXCID = PPPIOCSMAXCID;
711   unsigned IOCTL_PPPIOCSMRU = PPPIOCSMRU;
712   unsigned IOCTL_PPPIOCSXASYNCMAP = PPPIOCSXASYNCMAP;
713   unsigned IOCTL_SIOCADDRT = SIOCADDRT;
714   unsigned IOCTL_SIOCDARP = SIOCDARP;
715   unsigned IOCTL_SIOCDELRT = SIOCDELRT;
716   unsigned IOCTL_SIOCDRARP = SIOCDRARP;
717   unsigned IOCTL_SIOCGARP = SIOCGARP;
718   unsigned IOCTL_SIOCGIFENCAP = SIOCGIFENCAP;
719   unsigned IOCTL_SIOCGIFHWADDR = SIOCGIFHWADDR;
720   unsigned IOCTL_SIOCGIFMAP = SIOCGIFMAP;
721   unsigned IOCTL_SIOCGIFMEM = SIOCGIFMEM;
722   unsigned IOCTL_SIOCGIFNAME = SIOCGIFNAME;
723   unsigned IOCTL_SIOCGIFSLAVE = SIOCGIFSLAVE;
724   unsigned IOCTL_SIOCGRARP = SIOCGRARP;
725   unsigned IOCTL_SIOCGSTAMP = SIOCGSTAMP;
726   unsigned IOCTL_SIOCSARP = SIOCSARP;
727   unsigned IOCTL_SIOCSIFENCAP = SIOCSIFENCAP;
728   unsigned IOCTL_SIOCSIFHWADDR = SIOCSIFHWADDR;
729   unsigned IOCTL_SIOCSIFLINK = SIOCSIFLINK;
730   unsigned IOCTL_SIOCSIFMAP = SIOCSIFMAP;
731   unsigned IOCTL_SIOCSIFMEM = SIOCSIFMEM;
732   unsigned IOCTL_SIOCSIFSLAVE = SIOCSIFSLAVE;
733   unsigned IOCTL_SIOCSRARP = SIOCSRARP;
734 # if SOUND_VERSION >= 0x040000
735   unsigned IOCTL_SNDCTL_COPR_HALT = IOCTL_NOT_PRESENT;
736   unsigned IOCTL_SNDCTL_COPR_LOAD = IOCTL_NOT_PRESENT;
737   unsigned IOCTL_SNDCTL_COPR_RCODE = IOCTL_NOT_PRESENT;
738   unsigned IOCTL_SNDCTL_COPR_RCVMSG = IOCTL_NOT_PRESENT;
739   unsigned IOCTL_SNDCTL_COPR_RDATA = IOCTL_NOT_PRESENT;
740   unsigned IOCTL_SNDCTL_COPR_RESET = IOCTL_NOT_PRESENT;
741   unsigned IOCTL_SNDCTL_COPR_RUN = IOCTL_NOT_PRESENT;
742   unsigned IOCTL_SNDCTL_COPR_SENDMSG = IOCTL_NOT_PRESENT;
743   unsigned IOCTL_SNDCTL_COPR_WCODE = IOCTL_NOT_PRESENT;
744   unsigned IOCTL_SNDCTL_COPR_WDATA = IOCTL_NOT_PRESENT;
745   unsigned IOCTL_SOUND_PCM_READ_BITS = IOCTL_NOT_PRESENT;
746   unsigned IOCTL_SOUND_PCM_READ_CHANNELS = IOCTL_NOT_PRESENT;
747   unsigned IOCTL_SOUND_PCM_READ_FILTER = IOCTL_NOT_PRESENT;
748   unsigned IOCTL_SOUND_PCM_READ_RATE = IOCTL_NOT_PRESENT;
749   unsigned IOCTL_SOUND_PCM_WRITE_CHANNELS = IOCTL_NOT_PRESENT;
750   unsigned IOCTL_SOUND_PCM_WRITE_FILTER = IOCTL_NOT_PRESENT;
751 # else  // SOUND_VERSION
752   unsigned IOCTL_SNDCTL_COPR_HALT = SNDCTL_COPR_HALT;
753   unsigned IOCTL_SNDCTL_COPR_LOAD = SNDCTL_COPR_LOAD;
754   unsigned IOCTL_SNDCTL_COPR_RCODE = SNDCTL_COPR_RCODE;
755   unsigned IOCTL_SNDCTL_COPR_RCVMSG = SNDCTL_COPR_RCVMSG;
756   unsigned IOCTL_SNDCTL_COPR_RDATA = SNDCTL_COPR_RDATA;
757   unsigned IOCTL_SNDCTL_COPR_RESET = SNDCTL_COPR_RESET;
758   unsigned IOCTL_SNDCTL_COPR_RUN = SNDCTL_COPR_RUN;
759   unsigned IOCTL_SNDCTL_COPR_SENDMSG = SNDCTL_COPR_SENDMSG;
760   unsigned IOCTL_SNDCTL_COPR_WCODE = SNDCTL_COPR_WCODE;
761   unsigned IOCTL_SNDCTL_COPR_WDATA = SNDCTL_COPR_WDATA;
762   unsigned IOCTL_SOUND_PCM_READ_BITS = SOUND_PCM_READ_BITS;
763   unsigned IOCTL_SOUND_PCM_READ_CHANNELS = SOUND_PCM_READ_CHANNELS;
764   unsigned IOCTL_SOUND_PCM_READ_FILTER = SOUND_PCM_READ_FILTER;
765   unsigned IOCTL_SOUND_PCM_READ_RATE = SOUND_PCM_READ_RATE;
766   unsigned IOCTL_SOUND_PCM_WRITE_CHANNELS = SOUND_PCM_WRITE_CHANNELS;
767   unsigned IOCTL_SOUND_PCM_WRITE_FILTER = SOUND_PCM_WRITE_FILTER;
768 #endif // SOUND_VERSION
769   unsigned IOCTL_TCFLSH = TCFLSH;
770   unsigned IOCTL_TCGETA = TCGETA;
771   unsigned IOCTL_TCGETS = TCGETS;
772   unsigned IOCTL_TCSBRK = TCSBRK;
773   unsigned IOCTL_TCSBRKP = TCSBRKP;
774   unsigned IOCTL_TCSETA = TCSETA;
775   unsigned IOCTL_TCSETAF = TCSETAF;
776   unsigned IOCTL_TCSETAW = TCSETAW;
777   unsigned IOCTL_TCSETS = TCSETS;
778   unsigned IOCTL_TCSETSF = TCSETSF;
779   unsigned IOCTL_TCSETSW = TCSETSW;
780   unsigned IOCTL_TCXONC = TCXONC;
781   unsigned IOCTL_TIOCGLCKTRMIOS = TIOCGLCKTRMIOS;
782   unsigned IOCTL_TIOCGSOFTCAR = TIOCGSOFTCAR;
783   unsigned IOCTL_TIOCINQ = TIOCINQ;
784   unsigned IOCTL_TIOCLINUX = TIOCLINUX;
785   unsigned IOCTL_TIOCSERCONFIG = TIOCSERCONFIG;
786   unsigned IOCTL_TIOCSERGETLSR = TIOCSERGETLSR;
787   unsigned IOCTL_TIOCSERGWILD = TIOCSERGWILD;
788   unsigned IOCTL_TIOCSERSWILD = TIOCSERSWILD;
789   unsigned IOCTL_TIOCSLCKTRMIOS = TIOCSLCKTRMIOS;
790   unsigned IOCTL_TIOCSSOFTCAR = TIOCSSOFTCAR;
791   unsigned IOCTL_VT_DISALLOCATE = VT_DISALLOCATE;
792   unsigned IOCTL_VT_GETSTATE = VT_GETSTATE;
793   unsigned IOCTL_VT_RESIZE = VT_RESIZE;
794   unsigned IOCTL_VT_RESIZEX = VT_RESIZEX;
795   unsigned IOCTL_VT_SENDSIG = VT_SENDSIG;
796   unsigned IOCTL_MTIOCGET = MTIOCGET;
797   unsigned IOCTL_MTIOCTOP = MTIOCTOP;
798   unsigned IOCTL_SNDCTL_DSP_GETBLKSIZE = SNDCTL_DSP_GETBLKSIZE;
799   unsigned IOCTL_SNDCTL_DSP_GETFMTS = SNDCTL_DSP_GETFMTS;
800   unsigned IOCTL_SNDCTL_DSP_NONBLOCK = SNDCTL_DSP_NONBLOCK;
801   unsigned IOCTL_SNDCTL_DSP_POST = SNDCTL_DSP_POST;
802   unsigned IOCTL_SNDCTL_DSP_RESET = SNDCTL_DSP_RESET;
803   unsigned IOCTL_SNDCTL_DSP_SETFMT = SNDCTL_DSP_SETFMT;
804   unsigned IOCTL_SNDCTL_DSP_SETFRAGMENT = SNDCTL_DSP_SETFRAGMENT;
805   unsigned IOCTL_SNDCTL_DSP_SPEED = SNDCTL_DSP_SPEED;
806   unsigned IOCTL_SNDCTL_DSP_STEREO = SNDCTL_DSP_STEREO;
807   unsigned IOCTL_SNDCTL_DSP_SUBDIVIDE = SNDCTL_DSP_SUBDIVIDE;
808   unsigned IOCTL_SNDCTL_DSP_SYNC = SNDCTL_DSP_SYNC;
809   unsigned IOCTL_SNDCTL_FM_4OP_ENABLE = SNDCTL_FM_4OP_ENABLE;
810   unsigned IOCTL_SNDCTL_FM_LOAD_INSTR = SNDCTL_FM_LOAD_INSTR;
811   unsigned IOCTL_SNDCTL_MIDI_INFO = SNDCTL_MIDI_INFO;
812   unsigned IOCTL_SNDCTL_MIDI_PRETIME = SNDCTL_MIDI_PRETIME;
813   unsigned IOCTL_SNDCTL_SEQ_CTRLRATE = SNDCTL_SEQ_CTRLRATE;
814   unsigned IOCTL_SNDCTL_SEQ_GETINCOUNT = SNDCTL_SEQ_GETINCOUNT;
815   unsigned IOCTL_SNDCTL_SEQ_GETOUTCOUNT = SNDCTL_SEQ_GETOUTCOUNT;
816   unsigned IOCTL_SNDCTL_SEQ_NRMIDIS = SNDCTL_SEQ_NRMIDIS;
817   unsigned IOCTL_SNDCTL_SEQ_NRSYNTHS = SNDCTL_SEQ_NRSYNTHS;
818   unsigned IOCTL_SNDCTL_SEQ_OUTOFBAND = SNDCTL_SEQ_OUTOFBAND;
819   unsigned IOCTL_SNDCTL_SEQ_PANIC = SNDCTL_SEQ_PANIC;
820   unsigned IOCTL_SNDCTL_SEQ_PERCMODE = SNDCTL_SEQ_PERCMODE;
821   unsigned IOCTL_SNDCTL_SEQ_RESET = SNDCTL_SEQ_RESET;
822   unsigned IOCTL_SNDCTL_SEQ_RESETSAMPLES = SNDCTL_SEQ_RESETSAMPLES;
823   unsigned IOCTL_SNDCTL_SEQ_SYNC = SNDCTL_SEQ_SYNC;
824   unsigned IOCTL_SNDCTL_SEQ_TESTMIDI = SNDCTL_SEQ_TESTMIDI;
825   unsigned IOCTL_SNDCTL_SEQ_THRESHOLD = SNDCTL_SEQ_THRESHOLD;
826   unsigned IOCTL_SNDCTL_SYNTH_INFO = SNDCTL_SYNTH_INFO;
827   unsigned IOCTL_SNDCTL_SYNTH_MEMAVL = SNDCTL_SYNTH_MEMAVL;
828   unsigned IOCTL_SNDCTL_TMR_CONTINUE = SNDCTL_TMR_CONTINUE;
829   unsigned IOCTL_SNDCTL_TMR_METRONOME = SNDCTL_TMR_METRONOME;
830   unsigned IOCTL_SNDCTL_TMR_SELECT = SNDCTL_TMR_SELECT;
831   unsigned IOCTL_SNDCTL_TMR_SOURCE = SNDCTL_TMR_SOURCE;
832   unsigned IOCTL_SNDCTL_TMR_START = SNDCTL_TMR_START;
833   unsigned IOCTL_SNDCTL_TMR_STOP = SNDCTL_TMR_STOP;
834   unsigned IOCTL_SNDCTL_TMR_TEMPO = SNDCTL_TMR_TEMPO;
835   unsigned IOCTL_SNDCTL_TMR_TIMEBASE = SNDCTL_TMR_TIMEBASE;
836   unsigned IOCTL_SOUND_MIXER_READ_ALTPCM = SOUND_MIXER_READ_ALTPCM;
837   unsigned IOCTL_SOUND_MIXER_READ_BASS = SOUND_MIXER_READ_BASS;
838   unsigned IOCTL_SOUND_MIXER_READ_CAPS = SOUND_MIXER_READ_CAPS;
839   unsigned IOCTL_SOUND_MIXER_READ_CD = SOUND_MIXER_READ_CD;
840   unsigned IOCTL_SOUND_MIXER_READ_DEVMASK = SOUND_MIXER_READ_DEVMASK;
841   unsigned IOCTL_SOUND_MIXER_READ_ENHANCE = SOUND_MIXER_READ_ENHANCE;
842   unsigned IOCTL_SOUND_MIXER_READ_IGAIN = SOUND_MIXER_READ_IGAIN;
843   unsigned IOCTL_SOUND_MIXER_READ_IMIX = SOUND_MIXER_READ_IMIX;
844   unsigned IOCTL_SOUND_MIXER_READ_LINE = SOUND_MIXER_READ_LINE;
845   unsigned IOCTL_SOUND_MIXER_READ_LINE1 = SOUND_MIXER_READ_LINE1;
846   unsigned IOCTL_SOUND_MIXER_READ_LINE2 = SOUND_MIXER_READ_LINE2;
847   unsigned IOCTL_SOUND_MIXER_READ_LINE3 = SOUND_MIXER_READ_LINE3;
848   unsigned IOCTL_SOUND_MIXER_READ_LOUD = SOUND_MIXER_READ_LOUD;
849   unsigned IOCTL_SOUND_MIXER_READ_MIC = SOUND_MIXER_READ_MIC;
850   unsigned IOCTL_SOUND_MIXER_READ_MUTE = SOUND_MIXER_READ_MUTE;
851   unsigned IOCTL_SOUND_MIXER_READ_OGAIN = SOUND_MIXER_READ_OGAIN;
852   unsigned IOCTL_SOUND_MIXER_READ_PCM = SOUND_MIXER_READ_PCM;
853   unsigned IOCTL_SOUND_MIXER_READ_RECLEV = SOUND_MIXER_READ_RECLEV;
854   unsigned IOCTL_SOUND_MIXER_READ_RECMASK = SOUND_MIXER_READ_RECMASK;
855   unsigned IOCTL_SOUND_MIXER_READ_RECSRC = SOUND_MIXER_READ_RECSRC;
856   unsigned IOCTL_SOUND_MIXER_READ_SPEAKER = SOUND_MIXER_READ_SPEAKER;
857   unsigned IOCTL_SOUND_MIXER_READ_STEREODEVS = SOUND_MIXER_READ_STEREODEVS;
858   unsigned IOCTL_SOUND_MIXER_READ_SYNTH = SOUND_MIXER_READ_SYNTH;
859   unsigned IOCTL_SOUND_MIXER_READ_TREBLE = SOUND_MIXER_READ_TREBLE;
860   unsigned IOCTL_SOUND_MIXER_READ_VOLUME = SOUND_MIXER_READ_VOLUME;
861   unsigned IOCTL_SOUND_MIXER_WRITE_ALTPCM = SOUND_MIXER_WRITE_ALTPCM;
862   unsigned IOCTL_SOUND_MIXER_WRITE_BASS = SOUND_MIXER_WRITE_BASS;
863   unsigned IOCTL_SOUND_MIXER_WRITE_CD = SOUND_MIXER_WRITE_CD;
864   unsigned IOCTL_SOUND_MIXER_WRITE_ENHANCE = SOUND_MIXER_WRITE_ENHANCE;
865   unsigned IOCTL_SOUND_MIXER_WRITE_IGAIN = SOUND_MIXER_WRITE_IGAIN;
866   unsigned IOCTL_SOUND_MIXER_WRITE_IMIX = SOUND_MIXER_WRITE_IMIX;
867   unsigned IOCTL_SOUND_MIXER_WRITE_LINE = SOUND_MIXER_WRITE_LINE;
868   unsigned IOCTL_SOUND_MIXER_WRITE_LINE1 = SOUND_MIXER_WRITE_LINE1;
869   unsigned IOCTL_SOUND_MIXER_WRITE_LINE2 = SOUND_MIXER_WRITE_LINE2;
870   unsigned IOCTL_SOUND_MIXER_WRITE_LINE3 = SOUND_MIXER_WRITE_LINE3;
871   unsigned IOCTL_SOUND_MIXER_WRITE_LOUD = SOUND_MIXER_WRITE_LOUD;
872   unsigned IOCTL_SOUND_MIXER_WRITE_MIC = SOUND_MIXER_WRITE_MIC;
873   unsigned IOCTL_SOUND_MIXER_WRITE_MUTE = SOUND_MIXER_WRITE_MUTE;
874   unsigned IOCTL_SOUND_MIXER_WRITE_OGAIN = SOUND_MIXER_WRITE_OGAIN;
875   unsigned IOCTL_SOUND_MIXER_WRITE_PCM = SOUND_MIXER_WRITE_PCM;
876   unsigned IOCTL_SOUND_MIXER_WRITE_RECLEV = SOUND_MIXER_WRITE_RECLEV;
877   unsigned IOCTL_SOUND_MIXER_WRITE_RECSRC = SOUND_MIXER_WRITE_RECSRC;
878   unsigned IOCTL_SOUND_MIXER_WRITE_SPEAKER = SOUND_MIXER_WRITE_SPEAKER;
879   unsigned IOCTL_SOUND_MIXER_WRITE_SYNTH = SOUND_MIXER_WRITE_SYNTH;
880   unsigned IOCTL_SOUND_MIXER_WRITE_TREBLE = SOUND_MIXER_WRITE_TREBLE;
881   unsigned IOCTL_SOUND_MIXER_WRITE_VOLUME = SOUND_MIXER_WRITE_VOLUME;
882   unsigned IOCTL_VT_ACTIVATE = VT_ACTIVATE;
883   unsigned IOCTL_VT_GETMODE = VT_GETMODE;
884   unsigned IOCTL_VT_OPENQRY = VT_OPENQRY;
885   unsigned IOCTL_VT_RELDISP = VT_RELDISP;
886   unsigned IOCTL_VT_SETMODE = VT_SETMODE;
887   unsigned IOCTL_VT_WAITACTIVE = VT_WAITACTIVE;
888 #endif // SANITIZER_LINUX
889 
890 #if SANITIZER_LINUX && !SANITIZER_ANDROID
891   unsigned IOCTL_EQL_EMANCIPATE = EQL_EMANCIPATE;
892   unsigned IOCTL_EQL_ENSLAVE = EQL_ENSLAVE;
893   unsigned IOCTL_EQL_GETMASTRCFG = EQL_GETMASTRCFG;
894   unsigned IOCTL_EQL_GETSLAVECFG = EQL_GETSLAVECFG;
895   unsigned IOCTL_EQL_SETMASTRCFG = EQL_SETMASTRCFG;
896   unsigned IOCTL_EQL_SETSLAVECFG = EQL_SETSLAVECFG;
897 #if EV_VERSION > (0x010000)
898   unsigned IOCTL_EVIOCGKEYCODE_V2 = EVIOCGKEYCODE_V2;
899   unsigned IOCTL_EVIOCGPROP = EVIOCGPROP(0);
900   unsigned IOCTL_EVIOCSKEYCODE_V2 = EVIOCSKEYCODE_V2;
901 #else
902   unsigned IOCTL_EVIOCGKEYCODE_V2 = IOCTL_NOT_PRESENT;
903   unsigned IOCTL_EVIOCGPROP = IOCTL_NOT_PRESENT;
904   unsigned IOCTL_EVIOCSKEYCODE_V2 = IOCTL_NOT_PRESENT;
905 #endif
906   unsigned IOCTL_FS_IOC_GETFLAGS = _IOR('f', 1, long);
907   unsigned IOCTL_FS_IOC_GETVERSION = _IOR('v', 1, long);
908   unsigned IOCTL_FS_IOC_SETFLAGS = _IOW('f', 2, long);
909   unsigned IOCTL_FS_IOC_SETVERSION = _IOW('v', 2, long);
910   unsigned IOCTL_GIO_CMAP = GIO_CMAP;
911   unsigned IOCTL_GIO_FONT = GIO_FONT;
912   unsigned IOCTL_GIO_UNIMAP = GIO_UNIMAP;
913   unsigned IOCTL_GIO_UNISCRNMAP = GIO_UNISCRNMAP;
914   unsigned IOCTL_KDADDIO = KDADDIO;
915   unsigned IOCTL_KDDELIO = KDDELIO;
916   unsigned IOCTL_KDGETKEYCODE = KDGETKEYCODE;
917   unsigned IOCTL_KDGKBDIACR = KDGKBDIACR;
918   unsigned IOCTL_KDGKBENT = KDGKBENT;
919   unsigned IOCTL_KDGKBLED = KDGKBLED;
920   unsigned IOCTL_KDGKBMETA = KDGKBMETA;
921   unsigned IOCTL_KDGKBSENT = KDGKBSENT;
922   unsigned IOCTL_KDMAPDISP = KDMAPDISP;
923   unsigned IOCTL_KDSETKEYCODE = KDSETKEYCODE;
924   unsigned IOCTL_KDSIGACCEPT = KDSIGACCEPT;
925   unsigned IOCTL_KDSKBDIACR = KDSKBDIACR;
926   unsigned IOCTL_KDSKBENT = KDSKBENT;
927   unsigned IOCTL_KDSKBLED = KDSKBLED;
928   unsigned IOCTL_KDSKBMETA = KDSKBMETA;
929   unsigned IOCTL_KDSKBSENT = KDSKBSENT;
930   unsigned IOCTL_KDUNMAPDISP = KDUNMAPDISP;
931   unsigned IOCTL_LPABORT = LPABORT;
932   unsigned IOCTL_LPABORTOPEN = LPABORTOPEN;
933   unsigned IOCTL_LPCAREFUL = LPCAREFUL;
934   unsigned IOCTL_LPCHAR = LPCHAR;
935   unsigned IOCTL_LPGETIRQ = LPGETIRQ;
936   unsigned IOCTL_LPGETSTATUS = LPGETSTATUS;
937   unsigned IOCTL_LPRESET = LPRESET;
938   unsigned IOCTL_LPSETIRQ = LPSETIRQ;
939   unsigned IOCTL_LPTIME = LPTIME;
940   unsigned IOCTL_LPWAIT = LPWAIT;
941   unsigned IOCTL_MTIOCGETCONFIG = MTIOCGETCONFIG;
942   unsigned IOCTL_MTIOCSETCONFIG = MTIOCSETCONFIG;
943   unsigned IOCTL_PIO_CMAP = PIO_CMAP;
944   unsigned IOCTL_PIO_FONT = PIO_FONT;
945   unsigned IOCTL_PIO_UNIMAP = PIO_UNIMAP;
946   unsigned IOCTL_PIO_UNIMAPCLR = PIO_UNIMAPCLR;
947   unsigned IOCTL_PIO_UNISCRNMAP = PIO_UNISCRNMAP;
948 #if SANITIZER_GLIBC
949   unsigned IOCTL_SCSI_IOCTL_GET_IDLUN = SCSI_IOCTL_GET_IDLUN;
950   unsigned IOCTL_SCSI_IOCTL_PROBE_HOST = SCSI_IOCTL_PROBE_HOST;
951   unsigned IOCTL_SCSI_IOCTL_TAGGED_DISABLE = SCSI_IOCTL_TAGGED_DISABLE;
952   unsigned IOCTL_SCSI_IOCTL_TAGGED_ENABLE = SCSI_IOCTL_TAGGED_ENABLE;
953   unsigned IOCTL_SIOCAIPXITFCRT = SIOCAIPXITFCRT;
954   unsigned IOCTL_SIOCAIPXPRISLT = SIOCAIPXPRISLT;
955   unsigned IOCTL_SIOCAX25ADDUID = SIOCAX25ADDUID;
956   unsigned IOCTL_SIOCAX25DELUID = SIOCAX25DELUID;
957   unsigned IOCTL_SIOCAX25GETPARMS = SIOCAX25GETPARMS;
958   unsigned IOCTL_SIOCAX25GETUID = SIOCAX25GETUID;
959   unsigned IOCTL_SIOCAX25NOUID = SIOCAX25NOUID;
960   unsigned IOCTL_SIOCAX25SETPARMS = SIOCAX25SETPARMS;
961   unsigned IOCTL_SIOCDEVPLIP = SIOCDEVPLIP;
962   unsigned IOCTL_SIOCIPXCFGDATA = SIOCIPXCFGDATA;
963   unsigned IOCTL_SIOCNRDECOBS = SIOCNRDECOBS;
964   unsigned IOCTL_SIOCNRGETPARMS = SIOCNRGETPARMS;
965   unsigned IOCTL_SIOCNRRTCTL = SIOCNRRTCTL;
966   unsigned IOCTL_SIOCNRSETPARMS = SIOCNRSETPARMS;
967 #endif
968   unsigned IOCTL_TIOCGSERIAL = TIOCGSERIAL;
969   unsigned IOCTL_TIOCSERGETMULTI = TIOCSERGETMULTI;
970   unsigned IOCTL_TIOCSERSETMULTI = TIOCSERSETMULTI;
971   unsigned IOCTL_TIOCSSERIAL = TIOCSSERIAL;
972 #endif // SANITIZER_LINUX && !SANITIZER_ANDROID
973 
974 #if SANITIZER_LINUX && !SANITIZER_ANDROID
975   unsigned IOCTL_GIO_SCRNMAP = GIO_SCRNMAP;
976   unsigned IOCTL_KDDISABIO = KDDISABIO;
977   unsigned IOCTL_KDENABIO = KDENABIO;
978   unsigned IOCTL_KDGETLED = KDGETLED;
979   unsigned IOCTL_KDGETMODE = KDGETMODE;
980   unsigned IOCTL_KDGKBMODE = KDGKBMODE;
981   unsigned IOCTL_KDGKBTYPE = KDGKBTYPE;
982   unsigned IOCTL_KDMKTONE = KDMKTONE;
983   unsigned IOCTL_KDSETLED = KDSETLED;
984   unsigned IOCTL_KDSETMODE = KDSETMODE;
985   unsigned IOCTL_KDSKBMODE = KDSKBMODE;
986   unsigned IOCTL_KIOCSOUND = KIOCSOUND;
987   unsigned IOCTL_PIO_SCRNMAP = PIO_SCRNMAP;
988   unsigned IOCTL_SNDCTL_DSP_GETISPACE = SNDCTL_DSP_GETISPACE;
989   unsigned IOCTL_SNDCTL_DSP_GETOSPACE = SNDCTL_DSP_GETOSPACE;
990 #endif // (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
991 
992   const int si_SEGV_MAPERR = SEGV_MAPERR;
993   const int si_SEGV_ACCERR = SEGV_ACCERR;
994 } // namespace __sanitizer
995 
996 using namespace __sanitizer;
997 
998 COMPILER_CHECK(sizeof(__sanitizer_pthread_attr_t) >= sizeof(pthread_attr_t));
999 
1000 COMPILER_CHECK(sizeof(socklen_t) == sizeof(unsigned));
1001 CHECK_TYPE_SIZE(pthread_key_t);
1002 
1003 #if SANITIZER_LINUX
1004 // FIXME: We define those on Linux and Mac, but only check on Linux.
1005 COMPILER_CHECK(IOC_NRBITS == _IOC_NRBITS);
1006 COMPILER_CHECK(IOC_TYPEBITS == _IOC_TYPEBITS);
1007 COMPILER_CHECK(IOC_SIZEBITS == _IOC_SIZEBITS);
1008 COMPILER_CHECK(IOC_DIRBITS == _IOC_DIRBITS);
1009 COMPILER_CHECK(IOC_NRMASK == _IOC_NRMASK);
1010 COMPILER_CHECK(IOC_TYPEMASK == _IOC_TYPEMASK);
1011 COMPILER_CHECK(IOC_SIZEMASK == _IOC_SIZEMASK);
1012 COMPILER_CHECK(IOC_DIRMASK == _IOC_DIRMASK);
1013 COMPILER_CHECK(IOC_NRSHIFT == _IOC_NRSHIFT);
1014 COMPILER_CHECK(IOC_TYPESHIFT == _IOC_TYPESHIFT);
1015 COMPILER_CHECK(IOC_SIZESHIFT == _IOC_SIZESHIFT);
1016 COMPILER_CHECK(IOC_DIRSHIFT == _IOC_DIRSHIFT);
1017 COMPILER_CHECK(IOC_NONE == _IOC_NONE);
1018 COMPILER_CHECK(IOC_WRITE == _IOC_WRITE);
1019 COMPILER_CHECK(IOC_READ == _IOC_READ);
1020 COMPILER_CHECK(EVIOC_ABS_MAX == ABS_MAX);
1021 COMPILER_CHECK(EVIOC_EV_MAX == EV_MAX);
1022 COMPILER_CHECK(IOC_SIZE(0x12345678) == _IOC_SIZE(0x12345678));
1023 COMPILER_CHECK(IOC_DIR(0x12345678) == _IOC_DIR(0x12345678));
1024 COMPILER_CHECK(IOC_NR(0x12345678) == _IOC_NR(0x12345678));
1025 COMPILER_CHECK(IOC_TYPE(0x12345678) == _IOC_TYPE(0x12345678));
1026 #endif // SANITIZER_LINUX
1027 
1028 #if SANITIZER_LINUX || SANITIZER_FREEBSD
1029 // There are more undocumented fields in dl_phdr_info that we are not interested
1030 // in.
1031 COMPILER_CHECK(sizeof(__sanitizer_dl_phdr_info) <= sizeof(dl_phdr_info));
1032 CHECK_SIZE_AND_OFFSET(dl_phdr_info, dlpi_addr);
1033 CHECK_SIZE_AND_OFFSET(dl_phdr_info, dlpi_name);
1034 CHECK_SIZE_AND_OFFSET(dl_phdr_info, dlpi_phdr);
1035 CHECK_SIZE_AND_OFFSET(dl_phdr_info, dlpi_phnum);
1036 #endif // SANITIZER_LINUX || SANITIZER_FREEBSD
1037 
1038 #if SANITIZER_GLIBC || SANITIZER_FREEBSD
1039 CHECK_TYPE_SIZE(glob_t);
1040 CHECK_SIZE_AND_OFFSET(glob_t, gl_pathc);
1041 CHECK_SIZE_AND_OFFSET(glob_t, gl_pathv);
1042 CHECK_SIZE_AND_OFFSET(glob_t, gl_offs);
1043 CHECK_SIZE_AND_OFFSET(glob_t, gl_flags);
1044 CHECK_SIZE_AND_OFFSET(glob_t, gl_closedir);
1045 CHECK_SIZE_AND_OFFSET(glob_t, gl_readdir);
1046 CHECK_SIZE_AND_OFFSET(glob_t, gl_opendir);
1047 CHECK_SIZE_AND_OFFSET(glob_t, gl_lstat);
1048 CHECK_SIZE_AND_OFFSET(glob_t, gl_stat);
1049 #endif  // SANITIZER_GLIBC || SANITIZER_FREEBSD
1050 
1051 CHECK_TYPE_SIZE(addrinfo);
1052 CHECK_SIZE_AND_OFFSET(addrinfo, ai_flags);
1053 CHECK_SIZE_AND_OFFSET(addrinfo, ai_family);
1054 CHECK_SIZE_AND_OFFSET(addrinfo, ai_socktype);
1055 CHECK_SIZE_AND_OFFSET(addrinfo, ai_protocol);
1056 CHECK_SIZE_AND_OFFSET(addrinfo, ai_protocol);
1057 CHECK_SIZE_AND_OFFSET(addrinfo, ai_addrlen);
1058 CHECK_SIZE_AND_OFFSET(addrinfo, ai_canonname);
1059 CHECK_SIZE_AND_OFFSET(addrinfo, ai_addr);
1060 
1061 CHECK_TYPE_SIZE(hostent);
1062 CHECK_SIZE_AND_OFFSET(hostent, h_name);
1063 CHECK_SIZE_AND_OFFSET(hostent, h_aliases);
1064 CHECK_SIZE_AND_OFFSET(hostent, h_addrtype);
1065 CHECK_SIZE_AND_OFFSET(hostent, h_length);
1066 CHECK_SIZE_AND_OFFSET(hostent, h_addr_list);
1067 
1068 CHECK_TYPE_SIZE(iovec);
1069 CHECK_SIZE_AND_OFFSET(iovec, iov_base);
1070 CHECK_SIZE_AND_OFFSET(iovec, iov_len);
1071 
1072 // In POSIX, int msg_iovlen; socklen_t msg_controllen; socklen_t cmsg_len; but
1073 // many implementations don't conform to the standard. Since we pick the
1074 // non-conforming glibc definition, exclude the checks for musl (incompatible
1075 // sizes but compatible offsets).
1076 CHECK_TYPE_SIZE(msghdr);
1077 CHECK_SIZE_AND_OFFSET(msghdr, msg_name);
1078 CHECK_SIZE_AND_OFFSET(msghdr, msg_namelen);
1079 CHECK_SIZE_AND_OFFSET(msghdr, msg_iov);
1080 #if SANITIZER_GLIBC || SANITIZER_ANDROID
1081 CHECK_SIZE_AND_OFFSET(msghdr, msg_iovlen);
1082 #endif
1083 CHECK_SIZE_AND_OFFSET(msghdr, msg_control);
1084 #if SANITIZER_GLIBC || SANITIZER_ANDROID
1085 CHECK_SIZE_AND_OFFSET(msghdr, msg_controllen);
1086 #endif
1087 CHECK_SIZE_AND_OFFSET(msghdr, msg_flags);
1088 
1089 CHECK_TYPE_SIZE(cmsghdr);
1090 #if SANITIZER_GLIBC || SANITIZER_ANDROID
1091 CHECK_SIZE_AND_OFFSET(cmsghdr, cmsg_len);
1092 #endif
1093 CHECK_SIZE_AND_OFFSET(cmsghdr, cmsg_level);
1094 CHECK_SIZE_AND_OFFSET(cmsghdr, cmsg_type);
1095 
1096 #  if SANITIZER_LINUX && (SANITIZER_ANDROID || __GLIBC_PREREQ(2, 14))
1097 CHECK_TYPE_SIZE(mmsghdr);
1098 CHECK_SIZE_AND_OFFSET(mmsghdr, msg_hdr);
1099 CHECK_SIZE_AND_OFFSET(mmsghdr, msg_len);
1100 #endif
1101 
1102 COMPILER_CHECK(sizeof(__sanitizer_dirent) <= sizeof(dirent));
1103 CHECK_SIZE_AND_OFFSET(dirent, d_ino);
1104 #if SANITIZER_APPLE
1105 CHECK_SIZE_AND_OFFSET(dirent, d_seekoff);
1106 #elif SANITIZER_FREEBSD
1107 // There is no 'd_off' field on FreeBSD.
1108 #else
1109 CHECK_SIZE_AND_OFFSET(dirent, d_off);
1110 #endif
1111 CHECK_SIZE_AND_OFFSET(dirent, d_reclen);
1112 
1113 #if SANITIZER_GLIBC
1114 COMPILER_CHECK(sizeof(__sanitizer_dirent64) <= sizeof(dirent64));
1115 CHECK_SIZE_AND_OFFSET(dirent64, d_ino);
1116 CHECK_SIZE_AND_OFFSET(dirent64, d_off);
1117 CHECK_SIZE_AND_OFFSET(dirent64, d_reclen);
1118 #endif
1119 
1120 CHECK_TYPE_SIZE(ifconf);
1121 CHECK_SIZE_AND_OFFSET(ifconf, ifc_len);
1122 CHECK_SIZE_AND_OFFSET(ifconf, ifc_ifcu);
1123 
1124 CHECK_TYPE_SIZE(pollfd);
1125 CHECK_SIZE_AND_OFFSET(pollfd, fd);
1126 CHECK_SIZE_AND_OFFSET(pollfd, events);
1127 CHECK_SIZE_AND_OFFSET(pollfd, revents);
1128 
1129 CHECK_TYPE_SIZE(nfds_t);
1130 
1131 CHECK_TYPE_SIZE(sigset_t);
1132 
1133 COMPILER_CHECK(sizeof(__sanitizer_sigaction) == sizeof(struct sigaction));
1134 // Can't write checks for sa_handler and sa_sigaction due to them being
1135 // preprocessor macros.
1136 CHECK_STRUCT_SIZE_AND_OFFSET(sigaction, sa_mask);
1137 #if !defined(__s390x__) || __GLIBC_PREREQ (2, 20)
1138 // On s390x glibc 2.19 and earlier sa_flags was unsigned long, and sa_resv
1139 // didn't exist.
1140 CHECK_STRUCT_SIZE_AND_OFFSET(sigaction, sa_flags);
1141 #endif
1142 #if SANITIZER_LINUX && (!SANITIZER_ANDROID || !SANITIZER_MIPS32)
1143 CHECK_STRUCT_SIZE_AND_OFFSET(sigaction, sa_restorer);
1144 #endif
1145 
1146 #if SANITIZER_HAS_SIGINFO
1147 COMPILER_CHECK(alignof(siginfo_t) == alignof(__sanitizer_siginfo));
1148 using __sanitizer_siginfo_t = __sanitizer_siginfo;
1149 CHECK_TYPE_SIZE(siginfo_t);
1150 CHECK_SIZE_AND_OFFSET(siginfo_t, si_signo);
1151 CHECK_SIZE_AND_OFFSET(siginfo_t, si_errno);
1152 CHECK_SIZE_AND_OFFSET(siginfo_t, si_code);
1153 #endif
1154 
1155 #if SANITIZER_LINUX
1156 CHECK_TYPE_SIZE(__sysctl_args);
1157 CHECK_SIZE_AND_OFFSET(__sysctl_args, name);
1158 CHECK_SIZE_AND_OFFSET(__sysctl_args, nlen);
1159 CHECK_SIZE_AND_OFFSET(__sysctl_args, oldval);
1160 CHECK_SIZE_AND_OFFSET(__sysctl_args, oldlenp);
1161 CHECK_SIZE_AND_OFFSET(__sysctl_args, newval);
1162 CHECK_SIZE_AND_OFFSET(__sysctl_args, newlen);
1163 
1164 CHECK_TYPE_SIZE(__kernel_uid_t);
1165 CHECK_TYPE_SIZE(__kernel_gid_t);
1166 
1167 #if SANITIZER_USES_UID16_SYSCALLS
1168 CHECK_TYPE_SIZE(__kernel_old_uid_t);
1169 CHECK_TYPE_SIZE(__kernel_old_gid_t);
1170 #endif
1171 
1172 CHECK_TYPE_SIZE(__kernel_off_t);
1173 CHECK_TYPE_SIZE(__kernel_loff_t);
1174 CHECK_TYPE_SIZE(__kernel_fd_set);
1175 #endif
1176 
1177 #if !SANITIZER_ANDROID
1178 CHECK_TYPE_SIZE(wordexp_t);
1179 CHECK_SIZE_AND_OFFSET(wordexp_t, we_wordc);
1180 CHECK_SIZE_AND_OFFSET(wordexp_t, we_wordv);
1181 CHECK_SIZE_AND_OFFSET(wordexp_t, we_offs);
1182 #endif
1183 
1184 CHECK_TYPE_SIZE(tm);
1185 CHECK_SIZE_AND_OFFSET(tm, tm_sec);
1186 CHECK_SIZE_AND_OFFSET(tm, tm_min);
1187 CHECK_SIZE_AND_OFFSET(tm, tm_hour);
1188 CHECK_SIZE_AND_OFFSET(tm, tm_mday);
1189 CHECK_SIZE_AND_OFFSET(tm, tm_mon);
1190 CHECK_SIZE_AND_OFFSET(tm, tm_year);
1191 CHECK_SIZE_AND_OFFSET(tm, tm_wday);
1192 CHECK_SIZE_AND_OFFSET(tm, tm_yday);
1193 CHECK_SIZE_AND_OFFSET(tm, tm_isdst);
1194 CHECK_SIZE_AND_OFFSET(tm, tm_gmtoff);
1195 CHECK_SIZE_AND_OFFSET(tm, tm_zone);
1196 
1197 #if SANITIZER_LINUX
1198 CHECK_TYPE_SIZE(mntent);
1199 CHECK_SIZE_AND_OFFSET(mntent, mnt_fsname);
1200 CHECK_SIZE_AND_OFFSET(mntent, mnt_dir);
1201 CHECK_SIZE_AND_OFFSET(mntent, mnt_type);
1202 CHECK_SIZE_AND_OFFSET(mntent, mnt_opts);
1203 CHECK_SIZE_AND_OFFSET(mntent, mnt_freq);
1204 CHECK_SIZE_AND_OFFSET(mntent, mnt_passno);
1205 #endif
1206 
1207 CHECK_TYPE_SIZE(ether_addr);
1208 
1209 #if SANITIZER_GLIBC || SANITIZER_FREEBSD
1210 CHECK_TYPE_SIZE(ipc_perm);
1211 # if SANITIZER_FREEBSD
1212 CHECK_SIZE_AND_OFFSET(ipc_perm, key);
1213 CHECK_SIZE_AND_OFFSET(ipc_perm, seq);
1214 # else
1215 CHECK_SIZE_AND_OFFSET(ipc_perm, __key);
1216 CHECK_SIZE_AND_OFFSET(ipc_perm, __seq);
1217 # endif
1218 CHECK_SIZE_AND_OFFSET(ipc_perm, uid);
1219 CHECK_SIZE_AND_OFFSET(ipc_perm, gid);
1220 CHECK_SIZE_AND_OFFSET(ipc_perm, cuid);
1221 CHECK_SIZE_AND_OFFSET(ipc_perm, cgid);
1222 #if !SANITIZER_LINUX || __GLIBC_PREREQ (2, 31)
1223 /* glibc 2.30 and earlier provided 16-bit mode field instead of 32-bit
1224    on many architectures.  */
1225 CHECK_SIZE_AND_OFFSET(ipc_perm, mode);
1226 #endif
1227 
1228 CHECK_TYPE_SIZE(shmid_ds);
1229 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_perm);
1230 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_segsz);
1231 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_atime);
1232 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_dtime);
1233 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_ctime);
1234 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_cpid);
1235 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_lpid);
1236 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_nattch);
1237 #endif
1238 
1239 CHECK_TYPE_SIZE(clock_t);
1240 
1241 #if SANITIZER_LINUX
1242 CHECK_TYPE_SIZE(clockid_t);
1243 #endif
1244 
1245 #if !SANITIZER_ANDROID
1246 CHECK_TYPE_SIZE(ifaddrs);
1247 CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_next);
1248 CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_name);
1249 CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_addr);
1250 CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_netmask);
1251 #if SANITIZER_LINUX || SANITIZER_FREEBSD
1252 // Compare against the union, because we can't reach into the union in a
1253 // compliant way.
1254 #ifdef ifa_dstaddr
1255 #undef ifa_dstaddr
1256 #endif
1257 # if SANITIZER_FREEBSD
1258 CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_dstaddr);
1259 # else
1260 COMPILER_CHECK(sizeof(((__sanitizer_ifaddrs *)nullptr)->ifa_dstaddr) ==
1261                sizeof(((ifaddrs *)nullptr)->ifa_ifu));
1262 COMPILER_CHECK(offsetof(__sanitizer_ifaddrs, ifa_dstaddr) ==
1263                offsetof(ifaddrs, ifa_ifu));
1264 # endif // SANITIZER_FREEBSD
1265 #else
1266 CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_dstaddr);
1267 #endif // SANITIZER_LINUX
1268 CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_data);
1269 #endif
1270 
1271 #if SANITIZER_GLIBC || SANITIZER_ANDROID
1272 COMPILER_CHECK(sizeof(__sanitizer_struct_mallinfo) == sizeof(struct mallinfo));
1273 #endif
1274 
1275 #if !SANITIZER_ANDROID
1276 CHECK_TYPE_SIZE(timeb);
1277 CHECK_SIZE_AND_OFFSET(timeb, time);
1278 CHECK_SIZE_AND_OFFSET(timeb, millitm);
1279 CHECK_SIZE_AND_OFFSET(timeb, timezone);
1280 CHECK_SIZE_AND_OFFSET(timeb, dstflag);
1281 #endif
1282 
1283 CHECK_TYPE_SIZE(passwd);
1284 CHECK_SIZE_AND_OFFSET(passwd, pw_name);
1285 CHECK_SIZE_AND_OFFSET(passwd, pw_passwd);
1286 CHECK_SIZE_AND_OFFSET(passwd, pw_uid);
1287 CHECK_SIZE_AND_OFFSET(passwd, pw_gid);
1288 CHECK_SIZE_AND_OFFSET(passwd, pw_dir);
1289 CHECK_SIZE_AND_OFFSET(passwd, pw_shell);
1290 
1291 #if !SANITIZER_ANDROID
1292 CHECK_SIZE_AND_OFFSET(passwd, pw_gecos);
1293 #endif
1294 
1295 #if SANITIZER_APPLE
1296 CHECK_SIZE_AND_OFFSET(passwd, pw_change);
1297 CHECK_SIZE_AND_OFFSET(passwd, pw_expire);
1298 CHECK_SIZE_AND_OFFSET(passwd, pw_class);
1299 #endif
1300 
1301 
1302 CHECK_TYPE_SIZE(group);
1303 CHECK_SIZE_AND_OFFSET(group, gr_name);
1304 CHECK_SIZE_AND_OFFSET(group, gr_passwd);
1305 CHECK_SIZE_AND_OFFSET(group, gr_gid);
1306 CHECK_SIZE_AND_OFFSET(group, gr_mem);
1307 
1308 #if HAVE_RPC_XDR_H && !SANITIZER_APPLE
1309 CHECK_TYPE_SIZE(XDR);
1310 CHECK_SIZE_AND_OFFSET(XDR, x_op);
1311 CHECK_SIZE_AND_OFFSET(XDR, x_ops);
1312 CHECK_SIZE_AND_OFFSET(XDR, x_public);
1313 CHECK_SIZE_AND_OFFSET(XDR, x_private);
1314 CHECK_SIZE_AND_OFFSET(XDR, x_base);
1315 CHECK_SIZE_AND_OFFSET(XDR, x_handy);
1316 COMPILER_CHECK(__sanitizer_XDR_ENCODE == XDR_ENCODE);
1317 COMPILER_CHECK(__sanitizer_XDR_DECODE == XDR_DECODE);
1318 COMPILER_CHECK(__sanitizer_XDR_FREE == XDR_FREE);
1319 #endif
1320 
1321 #if SANITIZER_GLIBC
1322 COMPILER_CHECK(sizeof(__sanitizer_FILE) <= sizeof(FILE));
1323 CHECK_SIZE_AND_OFFSET(FILE, _flags);
1324 CHECK_SIZE_AND_OFFSET(FILE, _IO_read_ptr);
1325 CHECK_SIZE_AND_OFFSET(FILE, _IO_read_end);
1326 CHECK_SIZE_AND_OFFSET(FILE, _IO_read_base);
1327 CHECK_SIZE_AND_OFFSET(FILE, _IO_write_ptr);
1328 CHECK_SIZE_AND_OFFSET(FILE, _IO_write_end);
1329 CHECK_SIZE_AND_OFFSET(FILE, _IO_write_base);
1330 CHECK_SIZE_AND_OFFSET(FILE, _IO_buf_base);
1331 CHECK_SIZE_AND_OFFSET(FILE, _IO_buf_end);
1332 CHECK_SIZE_AND_OFFSET(FILE, _IO_save_base);
1333 CHECK_SIZE_AND_OFFSET(FILE, _IO_backup_base);
1334 CHECK_SIZE_AND_OFFSET(FILE, _IO_save_end);
1335 CHECK_SIZE_AND_OFFSET(FILE, _markers);
1336 CHECK_SIZE_AND_OFFSET(FILE, _chain);
1337 CHECK_SIZE_AND_OFFSET(FILE, _fileno);
1338 
1339 COMPILER_CHECK(sizeof(__sanitizer__obstack_chunk) <= sizeof(_obstack_chunk));
1340 CHECK_SIZE_AND_OFFSET(_obstack_chunk, limit);
1341 CHECK_SIZE_AND_OFFSET(_obstack_chunk, prev);
1342 CHECK_TYPE_SIZE(obstack);
1343 CHECK_SIZE_AND_OFFSET(obstack, chunk_size);
1344 CHECK_SIZE_AND_OFFSET(obstack, chunk);
1345 CHECK_SIZE_AND_OFFSET(obstack, object_base);
1346 CHECK_SIZE_AND_OFFSET(obstack, next_free);
1347 
1348 CHECK_TYPE_SIZE(cookie_io_functions_t);
1349 CHECK_SIZE_AND_OFFSET(cookie_io_functions_t, read);
1350 CHECK_SIZE_AND_OFFSET(cookie_io_functions_t, write);
1351 CHECK_SIZE_AND_OFFSET(cookie_io_functions_t, seek);
1352 CHECK_SIZE_AND_OFFSET(cookie_io_functions_t, close);
1353 #endif  // SANITIZER_GLIBC
1354 
1355 #if SANITIZER_LINUX || SANITIZER_FREEBSD
1356 CHECK_TYPE_SIZE(sem_t);
1357 #endif
1358 
1359 #if SANITIZER_LINUX && defined(__arm__)
1360 COMPILER_CHECK(ARM_VFPREGS_SIZE == ARM_VFPREGS_SIZE_ASAN);
1361 #endif
1362 
1363 #endif // SANITIZER_LINUX || SANITIZER_FREEBSD || SANITIZER_APPLE
1364