xref: /llvm-project/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_posix.cpp (revision b75174d05aa033a382d4c088e96e068a774f46da)
1 //===-- sanitizer_platform_limits_posix.cpp -------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // This file is a part of Sanitizer common code.
10 //
11 // Sizes and layouts of platform-specific POSIX data structures.
12 //===----------------------------------------------------------------------===//
13 
14 #if defined(__linux__) || defined(__APPLE__)
15 // Tests in this file assume that off_t-dependent data structures match the
16 // libc ABI. For example, struct dirent here is what readdir() function (as
17 // exported from libc) returns, and not the user-facing "dirent", which
18 // depends on _FILE_OFFSET_BITS setting.
19 // To get this "true" dirent definition, we undefine _FILE_OFFSET_BITS below.
20 #undef _FILE_OFFSET_BITS
21 #undef _TIME_BITS
22 #endif
23 
24 // Must go after undef _FILE_OFFSET_BITS.
25 #include "sanitizer_platform.h"
26 
27 #if SANITIZER_LINUX || SANITIZER_APPLE
28 // Must go after undef _FILE_OFFSET_BITS.
29 #include "sanitizer_glibc_version.h"
30 
31 #include <arpa/inet.h>
32 #include <dirent.h>
33 #include <grp.h>
34 #include <limits.h>
35 #include <net/if.h>
36 #include <netdb.h>
37 #include <poll.h>
38 #include <pthread.h>
39 #include <pwd.h>
40 #include <signal.h>
41 #include <stddef.h>
42 #include <stdio.h>
43 #include <sys/mman.h>
44 #include <sys/resource.h>
45 #include <sys/socket.h>
46 #include <sys/stat.h>
47 #include <sys/time.h>
48 #include <sys/times.h>
49 #include <sys/types.h>
50 #include <sys/utsname.h>
51 #include <termios.h>
52 #include <time.h>
53 #include <wchar.h>
54 #include <regex.h>
55 #if !SANITIZER_APPLE
56 #include <utmp.h>
57 #endif
58 
59 #if !SANITIZER_IOS
60 #include <net/route.h>
61 #endif
62 
63 #if !SANITIZER_ANDROID
64 #include <sys/mount.h>
65 #include <sys/timeb.h>
66 #include <utmpx.h>
67 #endif
68 
69 #if SANITIZER_LINUX
70 #include <malloc.h>
71 #include <mntent.h>
72 #include <netinet/ether.h>
73 #include <sys/sysinfo.h>
74 #include <sys/vt.h>
75 #include <linux/cdrom.h>
76 #include <linux/fd.h>
77 #if SANITIZER_ANDROID
78 #include <linux/fs.h>
79 #endif
80 #include <linux/hdreg.h>
81 #include <linux/input.h>
82 #include <linux/ioctl.h>
83 #include <linux/soundcard.h>
84 #include <linux/sysctl.h>
85 #include <linux/utsname.h>
86 #include <linux/posix_types.h>
87 #include <net/if_arp.h>
88 #endif
89 
90 #if SANITIZER_IOS
91 #undef IOC_DIRMASK
92 #endif
93 
94 #if SANITIZER_LINUX
95 # include <utime.h>
96 # include <sys/ptrace.h>
97 #    if defined(__mips64) || defined(__aarch64__) || defined(__arm__) || \
98         defined(__hexagon__) || defined(__loongarch__) ||SANITIZER_RISCV64
99 #      include <asm/ptrace.h>
100 #      ifdef __arm__
101 typedef struct user_fpregs elf_fpregset_t;
102 #   define ARM_VFPREGS_SIZE_ASAN (32 * 8 /*fpregs*/ + 4 /*fpscr*/)
103 #   if !defined(ARM_VFPREGS_SIZE)
104 #     define ARM_VFPREGS_SIZE ARM_VFPREGS_SIZE_ASAN
105 #   endif
106 #  endif
107 # endif
108 # include <semaphore.h>
109 #endif
110 
111 #if !SANITIZER_ANDROID
112 #include <ifaddrs.h>
113 #include <sys/ucontext.h>
114 #include <wordexp.h>
115 #endif
116 
117 #if SANITIZER_LINUX
118 #if SANITIZER_GLIBC
119 #include <fstab.h>
120 #      include <linux/filter.h>
121 #      include <net/if_ppp.h>
122 #      include <netax25/ax25.h>
123 #      include <netipx/ipx.h>
124 #      include <netrom/netrom.h>
125 #      include <obstack.h>
126 #      if HAVE_RPC_XDR_H
127 #        include <rpc/xdr.h>
128 #      endif
129 #      include <scsi/scsi.h>
130 #else
131 #include <linux/if_ppp.h>
132 #include <linux/kd.h>
133 #include <linux/ppp_defs.h>
134 #endif  // SANITIZER_GLIBC
135 
136 #if SANITIZER_ANDROID
137 #include <linux/mtio.h>
138 #else
139 #include <glob.h>
140 #include <mqueue.h>
141 #include <sys/kd.h>
142 #include <sys/mtio.h>
143 #include <sys/shm.h>
144 #include <sys/statvfs.h>
145 #include <sys/timex.h>
146 #if defined(__mips64)
147 # include <sys/procfs.h>
148 #endif
149 #include <sys/user.h>
150 #include <linux/if_eql.h>
151 #include <linux/if_plip.h>
152 #include <linux/lp.h>
153 #include <linux/mroute.h>
154 #include <linux/mroute6.h>
155 #include <linux/scc.h>
156 #include <linux/serial.h>
157 #include <sys/msg.h>
158 #include <sys/ipc.h>
159 #endif  // SANITIZER_ANDROID
160 
161 #include <link.h>
162 #include <sys/vfs.h>
163 #include <sys/epoll.h>
164 #include <linux/capability.h>
165 #else
166 #include <fstab.h>
167 #endif // SANITIZER_LINUX
168 
169 #if SANITIZER_APPLE
170 #include <net/ethernet.h>
171 #include <sys/filio.h>
172 #include <sys/sockio.h>
173 #endif
174 
175 // Include these after system headers to avoid name clashes and ambiguities.
176 #  include "sanitizer_common.h"
177 #  include "sanitizer_internal_defs.h"
178 #  include "sanitizer_platform_interceptors.h"
179 #  include "sanitizer_platform_limits_posix.h"
180 
181 namespace __sanitizer {
182   unsigned struct_utsname_sz = sizeof(struct utsname);
183   unsigned struct_stat_sz = sizeof(struct stat);
184 #if SANITIZER_HAS_STAT64
185   unsigned struct_stat64_sz = sizeof(struct stat64);
186 #endif // SANITIZER_HAS_STAT64
187   unsigned struct_rusage_sz = sizeof(struct rusage);
188   unsigned struct_tm_sz = sizeof(struct tm);
189   unsigned struct_passwd_sz = sizeof(struct passwd);
190   unsigned struct_group_sz = sizeof(struct group);
191   unsigned siginfo_t_sz = sizeof(siginfo_t);
192   unsigned struct_sigaction_sz = sizeof(struct sigaction);
193   unsigned struct_stack_t_sz = sizeof(stack_t);
194   unsigned struct_itimerval_sz = sizeof(struct itimerval);
195   unsigned pthread_t_sz = sizeof(pthread_t);
196   unsigned pthread_mutex_t_sz = sizeof(pthread_mutex_t);
197   unsigned pthread_cond_t_sz = sizeof(pthread_cond_t);
198   unsigned pid_t_sz = sizeof(pid_t);
199   unsigned timeval_sz = sizeof(timeval);
200   unsigned uid_t_sz = sizeof(uid_t);
201   unsigned gid_t_sz = sizeof(gid_t);
202   unsigned mbstate_t_sz = sizeof(mbstate_t);
203   unsigned sigset_t_sz = sizeof(sigset_t);
204   unsigned struct_timezone_sz = sizeof(struct timezone);
205   unsigned struct_tms_sz = sizeof(struct tms);
206   unsigned struct_sigevent_sz = sizeof(struct sigevent);
207   unsigned struct_sched_param_sz = sizeof(struct sched_param);
208   unsigned struct_regex_sz = sizeof(regex_t);
209   unsigned struct_regmatch_sz = sizeof(regmatch_t);
210 
211 #if SANITIZER_HAS_STATFS64
212   unsigned struct_statfs64_sz = sizeof(struct statfs64);
213 #endif // SANITIZER_HAS_STATFS64
214 
215 #if SANITIZER_GLIBC || SANITIZER_FREEBSD || SANITIZER_NETBSD || SANITIZER_APPLE
216   unsigned struct_fstab_sz = sizeof(struct fstab);
217 #endif  // SANITIZER_GLIBC || SANITIZER_FREEBSD || SANITIZER_NETBSD ||
218         // SANITIZER_APPLE
219 #if !SANITIZER_ANDROID
220   unsigned struct_statfs_sz = sizeof(struct statfs);
221   unsigned struct_sockaddr_sz = sizeof(struct sockaddr);
222 
223   unsigned ucontext_t_sz(void *ctx) {
224 #    if SANITIZER_GLIBC && SANITIZER_X64
225     // Added in Linux kernel 3.4.0, merged to glibc in 2.16
226 #      ifndef FP_XSTATE_MAGIC1
227 #        define FP_XSTATE_MAGIC1 0x46505853U
228 #      endif
229     // See kernel arch/x86/kernel/fpu/signal.c for details.
230     const auto *fpregs = static_cast<ucontext_t *>(ctx)->uc_mcontext.fpregs;
231     // The member names differ across header versions, but the actual layout
232     // is always the same.  So avoid using members, just use arithmetic.
233     const uint32_t *after_xmm =
234         reinterpret_cast<const uint32_t *>(fpregs + 1) - 24;
235     if (after_xmm[12] == FP_XSTATE_MAGIC1)
236       return reinterpret_cast<const char *>(fpregs) + after_xmm[13] -
237              static_cast<const char *>(ctx);
238 #    endif
239     return sizeof(ucontext_t);
240   }
241 #  endif  // !SANITIZER_ANDROID
242 
243 #  if SANITIZER_LINUX
244   unsigned struct_epoll_event_sz = sizeof(struct epoll_event);
245   unsigned struct_sysinfo_sz = sizeof(struct sysinfo);
246   unsigned __user_cap_header_struct_sz =
247       sizeof(struct __user_cap_header_struct);
248   unsigned __user_cap_data_struct_sz(void *hdrp) {
249     int u32s = 0;
250     if (hdrp) {
251       switch (((struct __user_cap_header_struct *)hdrp)->version) {
252       case _LINUX_CAPABILITY_VERSION_1:
253         u32s = _LINUX_CAPABILITY_U32S_1;
254         break;
255       case _LINUX_CAPABILITY_VERSION_2:
256         u32s = _LINUX_CAPABILITY_U32S_2;
257         break;
258       case _LINUX_CAPABILITY_VERSION_3:
259         u32s = _LINUX_CAPABILITY_U32S_3;
260         break;
261       }
262     }
263     return sizeof(struct __user_cap_data_struct) * u32s;
264   }
265   unsigned struct_new_utsname_sz = sizeof(struct new_utsname);
266   unsigned struct_old_utsname_sz = sizeof(struct old_utsname);
267   unsigned struct_oldold_utsname_sz = sizeof(struct oldold_utsname);
268 #endif // SANITIZER_LINUX
269 
270 #if SANITIZER_LINUX
271   unsigned struct_rlimit_sz = sizeof(struct rlimit);
272   unsigned struct_timespec_sz = sizeof(struct timespec);
273   unsigned struct_utimbuf_sz = sizeof(struct utimbuf);
274   unsigned struct_itimerspec_sz = sizeof(struct itimerspec);
275 #endif // SANITIZER_LINUX
276 
277 #if SANITIZER_GLIBC
278   // Use pre-computed size of struct ustat to avoid <sys/ustat.h> which
279   // has been removed from glibc 2.28.
280 #if defined(__aarch64__) || defined(__s390x__) || defined(__mips64) ||     \
281     defined(__powerpc64__) || defined(__arch64__) || defined(__sparcv9) || \
282     defined(__x86_64__) || SANITIZER_RISCV64
283 #define SIZEOF_STRUCT_USTAT 32
284 #    elif defined(__arm__) || defined(__i386__) || defined(__mips__) ||    \
285         defined(__powerpc__) || defined(__s390__) || defined(__sparc__) || \
286         defined(__hexagon__)
287 #      define SIZEOF_STRUCT_USTAT 20
288 #    elif defined(__loongarch__)
289   // Not used. The minimum Glibc version available for LoongArch is 2.36
290   // so ustat() wrapper is already gone.
291 #      define SIZEOF_STRUCT_USTAT 0
292 #    else
293 #      error Unknown size of struct ustat
294 #    endif
295   unsigned struct_ustat_sz = SIZEOF_STRUCT_USTAT;
296   unsigned struct_rlimit64_sz = sizeof(struct rlimit64);
297   unsigned struct_statvfs64_sz = sizeof(struct statvfs64);
298 #endif // SANITIZER_GLIBC
299 
300 #if SANITIZER_LINUX && !SANITIZER_ANDROID
301   unsigned struct_timex_sz = sizeof(struct timex);
302   unsigned struct_msqid_ds_sz = sizeof(struct msqid_ds);
303   unsigned struct_mq_attr_sz = sizeof(struct mq_attr);
304   unsigned struct_statvfs_sz = sizeof(struct statvfs);
305 #endif // SANITIZER_LINUX && !SANITIZER_ANDROID
306 
307   const uptr sig_ign = (uptr)SIG_IGN;
308   const uptr sig_dfl = (uptr)SIG_DFL;
309   const uptr sig_err = (uptr)SIG_ERR;
310   const uptr sa_siginfo = (uptr)SA_SIGINFO;
311 
312 #if SANITIZER_LINUX
313   int e_tabsz = (int)E_TABSZ;
314 #endif
315 
316 
317 #if SANITIZER_LINUX && !SANITIZER_ANDROID
318   unsigned struct_shminfo_sz = sizeof(struct shminfo);
319   unsigned struct_shm_info_sz = sizeof(struct shm_info);
320   int shmctl_ipc_stat = (int)IPC_STAT;
321   int shmctl_ipc_info = (int)IPC_INFO;
322   int shmctl_shm_info = (int)SHM_INFO;
323   int shmctl_shm_stat = (int)SHM_STAT;
324 #endif
325 
326 #if !SANITIZER_APPLE && !SANITIZER_FREEBSD
327   unsigned struct_utmp_sz = sizeof(struct utmp);
328 #endif
329 #if !SANITIZER_ANDROID
330   unsigned struct_utmpx_sz = sizeof(struct utmpx);
331 #endif
332 
333   int map_fixed = MAP_FIXED;
334 
335   int af_inet = (int)AF_INET;
336   int af_inet6 = (int)AF_INET6;
337 
338   uptr __sanitizer_in_addr_sz(int af) {
339     if (af == AF_INET)
340       return sizeof(struct in_addr);
341     else if (af == AF_INET6)
342       return sizeof(struct in6_addr);
343     else
344       return 0;
345   }
346 
347 #if SANITIZER_LINUX
348 unsigned struct_ElfW_Phdr_sz = sizeof(ElfW(Phdr));
349 #elif SANITIZER_FREEBSD
350 unsigned struct_ElfW_Phdr_sz = sizeof(Elf_Phdr);
351 #endif
352 
353 #if SANITIZER_GLIBC
354   int glob_nomatch = GLOB_NOMATCH;
355   int glob_altdirfunc = GLOB_ALTDIRFUNC;
356 #endif
357 
358 #  if !SANITIZER_ANDROID
359   const int wordexp_wrde_dooffs = WRDE_DOOFFS;
360 #  endif  // !SANITIZER_ANDROID
361 
362 #if SANITIZER_LINUX && !SANITIZER_ANDROID &&                               \
363     (defined(__i386) || defined(__x86_64) || defined(__mips64) ||          \
364      defined(__powerpc64__) || defined(__aarch64__) || defined(__arm__) || \
365      defined(__s390__) || defined(__loongarch__)|| SANITIZER_RISCV64)
366 #if defined(__mips64) || defined(__powerpc64__) || defined(__arm__)
367   unsigned struct_user_regs_struct_sz = sizeof(struct pt_regs);
368   unsigned struct_user_fpregs_struct_sz = sizeof(elf_fpregset_t);
369 #elif SANITIZER_RISCV64
370   unsigned struct_user_regs_struct_sz = sizeof(struct user_regs_struct);
371   unsigned struct_user_fpregs_struct_sz = sizeof(struct __riscv_q_ext_state);
372 #elif defined(__aarch64__)
373   unsigned struct_user_regs_struct_sz = sizeof(struct user_pt_regs);
374   unsigned struct_user_fpregs_struct_sz = sizeof(struct user_fpsimd_state);
375 #elif defined(__loongarch__)
376   unsigned struct_user_regs_struct_sz = sizeof(struct user_pt_regs);
377   unsigned struct_user_fpregs_struct_sz = sizeof(struct user_fp_state);
378 #elif defined(__s390__)
379   unsigned struct_user_regs_struct_sz = sizeof(struct _user_regs_struct);
380   unsigned struct_user_fpregs_struct_sz = sizeof(struct _user_fpregs_struct);
381 #else
382   unsigned struct_user_regs_struct_sz = sizeof(struct user_regs_struct);
383   unsigned struct_user_fpregs_struct_sz = sizeof(struct user_fpregs_struct);
384 #endif // __mips64 || __powerpc64__ || __aarch64__ || __loongarch__
385 #if defined(__x86_64) || defined(__mips64) || defined(__powerpc64__) || \
386     defined(__aarch64__) || defined(__arm__) || defined(__s390__) ||    \
387     defined(__loongarch__) || SANITIZER_RISCV64
388   unsigned struct_user_fpxregs_struct_sz = 0;
389 #else
390   unsigned struct_user_fpxregs_struct_sz = sizeof(struct user_fpxregs_struct);
391 #endif // __x86_64 || __mips64 || __powerpc64__ || __aarch64__ || __arm__
392 // || __s390__ || __loongarch__
393 #ifdef __arm__
394   unsigned struct_user_vfpregs_struct_sz = ARM_VFPREGS_SIZE;
395 #else
396   unsigned struct_user_vfpregs_struct_sz = 0;
397 #endif
398 
399   int ptrace_peektext = PTRACE_PEEKTEXT;
400   int ptrace_peekdata = PTRACE_PEEKDATA;
401   int ptrace_peekuser = PTRACE_PEEKUSER;
402 #if (defined(PTRACE_GETREGS) && defined(PTRACE_SETREGS)) || \
403     (defined(PT_GETREGS) && defined(PT_SETREGS))
404   int ptrace_getregs = PTRACE_GETREGS;
405   int ptrace_setregs = PTRACE_SETREGS;
406 #else
407   int ptrace_getregs = -1;
408   int ptrace_setregs = -1;
409 #endif
410 #if (defined(PTRACE_GETFPREGS) && defined(PTRACE_SETFPREGS)) || \
411     (defined(PT_GETFPREGS) && defined(PT_SETFPREGS))
412   int ptrace_getfpregs = PTRACE_GETFPREGS;
413   int ptrace_setfpregs = PTRACE_SETFPREGS;
414 #else
415   int ptrace_getfpregs = -1;
416   int ptrace_setfpregs = -1;
417 #endif
418 #if (defined(PTRACE_GETFPXREGS) && defined(PTRACE_SETFPXREGS)) || \
419     (defined(PT_GETFPXREGS) && defined(PT_SETFPXREGS))
420   int ptrace_getfpxregs = PTRACE_GETFPXREGS;
421   int ptrace_setfpxregs = PTRACE_SETFPXREGS;
422 #else
423   int ptrace_getfpxregs = -1;
424   int ptrace_setfpxregs = -1;
425 #endif // PTRACE_GETFPXREGS/PTRACE_SETFPXREGS
426 #if defined(PTRACE_GETVFPREGS) && defined(PTRACE_SETVFPREGS)
427   int ptrace_getvfpregs = PTRACE_GETVFPREGS;
428   int ptrace_setvfpregs = PTRACE_SETVFPREGS;
429 #else
430   int ptrace_getvfpregs = -1;
431   int ptrace_setvfpregs = -1;
432 #endif
433   int ptrace_geteventmsg = PTRACE_GETEVENTMSG;
434 #if (defined(PTRACE_GETSIGINFO) && defined(PTRACE_SETSIGINFO)) ||              \
435     (defined(PT_GETSIGINFO) && defined(PT_SETSIGINFO))
436   int ptrace_getsiginfo = PTRACE_GETSIGINFO;
437   int ptrace_setsiginfo = PTRACE_SETSIGINFO;
438 #else
439   int ptrace_getsiginfo = -1;
440   int ptrace_setsiginfo = -1;
441 #endif // PTRACE_GETSIGINFO/PTRACE_SETSIGINFO
442 #if defined(PTRACE_GETREGSET) && defined(PTRACE_SETREGSET)
443   int ptrace_getregset = PTRACE_GETREGSET;
444   int ptrace_setregset = PTRACE_SETREGSET;
445 #else
446   int ptrace_getregset = -1;
447   int ptrace_setregset = -1;
448 #endif // PTRACE_GETREGSET/PTRACE_SETREGSET
449 #endif
450 
451   unsigned path_max = PATH_MAX;
452 
453   // ioctl arguments
454   unsigned struct_ifreq_sz = sizeof(struct ifreq);
455   unsigned struct_termios_sz = sizeof(struct termios);
456   unsigned struct_winsize_sz = sizeof(struct winsize);
457 
458 #if SANITIZER_LINUX
459   unsigned struct_arpreq_sz = sizeof(struct arpreq);
460   unsigned struct_cdrom_msf_sz = sizeof(struct cdrom_msf);
461   unsigned struct_cdrom_multisession_sz = sizeof(struct cdrom_multisession);
462   unsigned struct_cdrom_read_audio_sz = sizeof(struct cdrom_read_audio);
463   unsigned struct_cdrom_subchnl_sz = sizeof(struct cdrom_subchnl);
464   unsigned struct_cdrom_ti_sz = sizeof(struct cdrom_ti);
465   unsigned struct_cdrom_tocentry_sz = sizeof(struct cdrom_tocentry);
466   unsigned struct_cdrom_tochdr_sz = sizeof(struct cdrom_tochdr);
467   unsigned struct_cdrom_volctrl_sz = sizeof(struct cdrom_volctrl);
468   unsigned struct_ff_effect_sz = sizeof(struct ff_effect);
469   unsigned struct_floppy_drive_params_sz = sizeof(struct floppy_drive_params);
470   unsigned struct_floppy_drive_struct_sz = sizeof(struct floppy_drive_struct);
471   unsigned struct_floppy_fdc_state_sz = sizeof(struct floppy_fdc_state);
472   unsigned struct_floppy_max_errors_sz = sizeof(struct floppy_max_errors);
473   unsigned struct_floppy_raw_cmd_sz = sizeof(struct floppy_raw_cmd);
474   unsigned struct_floppy_struct_sz = sizeof(struct floppy_struct);
475   unsigned struct_floppy_write_errors_sz = sizeof(struct floppy_write_errors);
476   unsigned struct_format_descr_sz = sizeof(struct format_descr);
477   unsigned struct_hd_driveid_sz = sizeof(struct hd_driveid);
478   unsigned struct_hd_geometry_sz = sizeof(struct hd_geometry);
479   unsigned struct_input_absinfo_sz = sizeof(struct input_absinfo);
480   unsigned struct_input_id_sz = sizeof(struct input_id);
481   unsigned struct_mtpos_sz = sizeof(struct mtpos);
482   unsigned struct_rtentry_sz = sizeof(struct rtentry);
483 #if SANITIZER_GLIBC || SANITIZER_ANDROID
484   unsigned struct_termio_sz = sizeof(struct termio);
485 #endif
486   unsigned struct_vt_consize_sz = sizeof(struct vt_consize);
487   unsigned struct_vt_sizes_sz = sizeof(struct vt_sizes);
488   unsigned struct_vt_stat_sz = sizeof(struct vt_stat);
489 #endif // SANITIZER_LINUX
490 
491 #if SANITIZER_LINUX
492 #if SOUND_VERSION >= 0x040000
493   unsigned struct_copr_buffer_sz = 0;
494   unsigned struct_copr_debug_buf_sz = 0;
495   unsigned struct_copr_msg_sz = 0;
496 #else
497   unsigned struct_copr_buffer_sz = sizeof(struct copr_buffer);
498   unsigned struct_copr_debug_buf_sz = sizeof(struct copr_debug_buf);
499   unsigned struct_copr_msg_sz = sizeof(struct copr_msg);
500 #endif
501   unsigned struct_midi_info_sz = sizeof(struct midi_info);
502   unsigned struct_mtget_sz = sizeof(struct mtget);
503   unsigned struct_mtop_sz = sizeof(struct mtop);
504   unsigned struct_sbi_instrument_sz = sizeof(struct sbi_instrument);
505   unsigned struct_seq_event_rec_sz = sizeof(struct seq_event_rec);
506   unsigned struct_synth_info_sz = sizeof(struct synth_info);
507   unsigned struct_vt_mode_sz = sizeof(struct vt_mode);
508 #endif // SANITIZER_LINUX
509 
510 #if SANITIZER_GLIBC
511   unsigned struct_ax25_parms_struct_sz = sizeof(struct ax25_parms_struct);
512 #if EV_VERSION > (0x010000)
513   unsigned struct_input_keymap_entry_sz = sizeof(struct input_keymap_entry);
514 #else
515   unsigned struct_input_keymap_entry_sz = 0;
516 #endif
517   unsigned struct_ipx_config_data_sz = sizeof(struct ipx_config_data);
518   unsigned struct_kbdiacrs_sz = sizeof(struct kbdiacrs);
519   unsigned struct_kbentry_sz = sizeof(struct kbentry);
520   unsigned struct_kbkeycode_sz = sizeof(struct kbkeycode);
521   unsigned struct_kbsentry_sz = sizeof(struct kbsentry);
522   unsigned struct_mtconfiginfo_sz = sizeof(struct mtconfiginfo);
523   unsigned struct_nr_parms_struct_sz = sizeof(struct nr_parms_struct);
524   unsigned struct_scc_modem_sz = sizeof(struct scc_modem);
525   unsigned struct_scc_stat_sz = sizeof(struct scc_stat);
526   unsigned struct_serial_multiport_struct_sz
527       = sizeof(struct serial_multiport_struct);
528   unsigned struct_serial_struct_sz = sizeof(struct serial_struct);
529   unsigned struct_sockaddr_ax25_sz = sizeof(struct sockaddr_ax25);
530   unsigned struct_unimapdesc_sz = sizeof(struct unimapdesc);
531   unsigned struct_unimapinit_sz = sizeof(struct unimapinit);
532 
533   unsigned struct_audio_buf_info_sz = sizeof(struct audio_buf_info);
534   unsigned struct_ppp_stats_sz = sizeof(struct ppp_stats);
535   unsigned struct_sock_fprog_sz = sizeof(struct sock_fprog);
536 #  endif  // SANITIZER_GLIBC
537 
538 #  if !SANITIZER_ANDROID && !SANITIZER_APPLE
539   unsigned struct_sioc_sg_req_sz = sizeof(struct sioc_sg_req);
540   unsigned struct_sioc_vif_req_sz = sizeof(struct sioc_vif_req);
541 #endif
542 
543   const unsigned long __sanitizer_bufsiz = BUFSIZ;
544 
545   const unsigned IOCTL_NOT_PRESENT = 0;
546 
547   unsigned IOCTL_FIOASYNC = FIOASYNC;
548   unsigned IOCTL_FIOCLEX = FIOCLEX;
549   unsigned IOCTL_FIOGETOWN = FIOGETOWN;
550   unsigned IOCTL_FIONBIO = FIONBIO;
551   unsigned IOCTL_FIONCLEX = FIONCLEX;
552   unsigned IOCTL_FIOSETOWN = FIOSETOWN;
553   unsigned IOCTL_SIOCADDMULTI = SIOCADDMULTI;
554   unsigned IOCTL_SIOCATMARK = SIOCATMARK;
555   unsigned IOCTL_SIOCDELMULTI = SIOCDELMULTI;
556   unsigned IOCTL_SIOCGIFADDR = SIOCGIFADDR;
557   unsigned IOCTL_SIOCGIFBRDADDR = SIOCGIFBRDADDR;
558   unsigned IOCTL_SIOCGIFCONF = SIOCGIFCONF;
559   unsigned IOCTL_SIOCGIFDSTADDR = SIOCGIFDSTADDR;
560   unsigned IOCTL_SIOCGIFFLAGS = SIOCGIFFLAGS;
561   unsigned IOCTL_SIOCGIFMETRIC = SIOCGIFMETRIC;
562   unsigned IOCTL_SIOCGIFMTU = SIOCGIFMTU;
563   unsigned IOCTL_SIOCGIFNETMASK = SIOCGIFNETMASK;
564   unsigned IOCTL_SIOCGPGRP = SIOCGPGRP;
565   unsigned IOCTL_SIOCSIFADDR = SIOCSIFADDR;
566   unsigned IOCTL_SIOCSIFBRDADDR = SIOCSIFBRDADDR;
567   unsigned IOCTL_SIOCSIFDSTADDR = SIOCSIFDSTADDR;
568   unsigned IOCTL_SIOCSIFFLAGS = SIOCSIFFLAGS;
569   unsigned IOCTL_SIOCSIFMETRIC = SIOCSIFMETRIC;
570   unsigned IOCTL_SIOCSIFMTU = SIOCSIFMTU;
571   unsigned IOCTL_SIOCSIFNETMASK = SIOCSIFNETMASK;
572   unsigned IOCTL_SIOCSPGRP = SIOCSPGRP;
573   unsigned IOCTL_TIOCCONS = TIOCCONS;
574   unsigned IOCTL_TIOCEXCL = TIOCEXCL;
575   unsigned IOCTL_TIOCGETD = TIOCGETD;
576   unsigned IOCTL_TIOCGPGRP = TIOCGPGRP;
577   unsigned IOCTL_TIOCGWINSZ = TIOCGWINSZ;
578   unsigned IOCTL_TIOCMBIC = TIOCMBIC;
579   unsigned IOCTL_TIOCMBIS = TIOCMBIS;
580   unsigned IOCTL_TIOCMGET = TIOCMGET;
581   unsigned IOCTL_TIOCMSET = TIOCMSET;
582   unsigned IOCTL_TIOCNOTTY = TIOCNOTTY;
583   unsigned IOCTL_TIOCNXCL = TIOCNXCL;
584   unsigned IOCTL_TIOCOUTQ = TIOCOUTQ;
585   unsigned IOCTL_TIOCPKT = TIOCPKT;
586   unsigned IOCTL_TIOCSCTTY = TIOCSCTTY;
587   unsigned IOCTL_TIOCSETD = TIOCSETD;
588   unsigned IOCTL_TIOCSPGRP = TIOCSPGRP;
589   unsigned IOCTL_TIOCSTI = TIOCSTI;
590   unsigned IOCTL_TIOCSWINSZ = TIOCSWINSZ;
591 #if SANITIZER_LINUX && !SANITIZER_ANDROID
592   unsigned IOCTL_SIOCGETSGCNT = SIOCGETSGCNT;
593   unsigned IOCTL_SIOCGETVIFCNT = SIOCGETVIFCNT;
594 #endif
595 
596 #if SANITIZER_LINUX
597   unsigned IOCTL_EVIOCGABS = EVIOCGABS(0);
598   unsigned IOCTL_EVIOCGBIT = EVIOCGBIT(0, 0);
599   unsigned IOCTL_EVIOCGEFFECTS = EVIOCGEFFECTS;
600   unsigned IOCTL_EVIOCGID = EVIOCGID;
601   unsigned IOCTL_EVIOCGKEY = EVIOCGKEY(0);
602   unsigned IOCTL_EVIOCGKEYCODE = EVIOCGKEYCODE;
603   unsigned IOCTL_EVIOCGLED = EVIOCGLED(0);
604   unsigned IOCTL_EVIOCGNAME = EVIOCGNAME(0);
605   unsigned IOCTL_EVIOCGPHYS = EVIOCGPHYS(0);
606   unsigned IOCTL_EVIOCGRAB = EVIOCGRAB;
607   unsigned IOCTL_EVIOCGREP = EVIOCGREP;
608   unsigned IOCTL_EVIOCGSND = EVIOCGSND(0);
609   unsigned IOCTL_EVIOCGSW = EVIOCGSW(0);
610   unsigned IOCTL_EVIOCGUNIQ = EVIOCGUNIQ(0);
611   unsigned IOCTL_EVIOCGVERSION = EVIOCGVERSION;
612   unsigned IOCTL_EVIOCRMFF = EVIOCRMFF;
613   unsigned IOCTL_EVIOCSABS = EVIOCSABS(0);
614   unsigned IOCTL_EVIOCSFF = EVIOCSFF;
615   unsigned IOCTL_EVIOCSKEYCODE = EVIOCSKEYCODE;
616   unsigned IOCTL_EVIOCSREP = EVIOCSREP;
617   unsigned IOCTL_BLKFLSBUF = BLKFLSBUF;
618   unsigned IOCTL_BLKGETSIZE = BLKGETSIZE;
619   unsigned IOCTL_BLKRAGET = BLKRAGET;
620   unsigned IOCTL_BLKRASET = BLKRASET;
621   unsigned IOCTL_BLKROGET = BLKROGET;
622   unsigned IOCTL_BLKROSET = BLKROSET;
623   unsigned IOCTL_BLKRRPART = BLKRRPART;
624   unsigned IOCTL_BLKFRASET = BLKFRASET;
625   unsigned IOCTL_BLKFRAGET = BLKFRAGET;
626   unsigned IOCTL_BLKSECTSET = BLKSECTSET;
627   unsigned IOCTL_BLKSECTGET = BLKSECTGET;
628   unsigned IOCTL_BLKSSZGET = BLKSSZGET;
629   unsigned IOCTL_BLKBSZGET = BLKBSZGET;
630   unsigned IOCTL_BLKBSZSET = BLKBSZSET;
631   unsigned IOCTL_BLKGETSIZE64 = BLKGETSIZE64;
632   unsigned IOCTL_CDROMAUDIOBUFSIZ = CDROMAUDIOBUFSIZ;
633   unsigned IOCTL_CDROMEJECT = CDROMEJECT;
634   unsigned IOCTL_CDROMEJECT_SW = CDROMEJECT_SW;
635   unsigned IOCTL_CDROMMULTISESSION = CDROMMULTISESSION;
636   unsigned IOCTL_CDROMPAUSE = CDROMPAUSE;
637   unsigned IOCTL_CDROMPLAYMSF = CDROMPLAYMSF;
638   unsigned IOCTL_CDROMPLAYTRKIND = CDROMPLAYTRKIND;
639   unsigned IOCTL_CDROMREADAUDIO = CDROMREADAUDIO;
640   unsigned IOCTL_CDROMREADCOOKED = CDROMREADCOOKED;
641   unsigned IOCTL_CDROMREADMODE1 = CDROMREADMODE1;
642   unsigned IOCTL_CDROMREADMODE2 = CDROMREADMODE2;
643   unsigned IOCTL_CDROMREADRAW = CDROMREADRAW;
644   unsigned IOCTL_CDROMREADTOCENTRY = CDROMREADTOCENTRY;
645   unsigned IOCTL_CDROMREADTOCHDR = CDROMREADTOCHDR;
646   unsigned IOCTL_CDROMRESET = CDROMRESET;
647   unsigned IOCTL_CDROMRESUME = CDROMRESUME;
648   unsigned IOCTL_CDROMSEEK = CDROMSEEK;
649   unsigned IOCTL_CDROMSTART = CDROMSTART;
650   unsigned IOCTL_CDROMSTOP = CDROMSTOP;
651   unsigned IOCTL_CDROMSUBCHNL = CDROMSUBCHNL;
652   unsigned IOCTL_CDROMVOLCTRL = CDROMVOLCTRL;
653   unsigned IOCTL_CDROMVOLREAD = CDROMVOLREAD;
654   unsigned IOCTL_CDROM_GET_UPC = CDROM_GET_UPC;
655   unsigned IOCTL_FDCLRPRM = FDCLRPRM;
656   unsigned IOCTL_FDDEFPRM = FDDEFPRM;
657   unsigned IOCTL_FDFLUSH = FDFLUSH;
658   unsigned IOCTL_FDFMTBEG = FDFMTBEG;
659   unsigned IOCTL_FDFMTEND = FDFMTEND;
660   unsigned IOCTL_FDFMTTRK = FDFMTTRK;
661   unsigned IOCTL_FDGETDRVPRM = FDGETDRVPRM;
662   unsigned IOCTL_FDGETDRVSTAT = FDGETDRVSTAT;
663   unsigned IOCTL_FDGETDRVTYP = FDGETDRVTYP;
664   unsigned IOCTL_FDGETFDCSTAT = FDGETFDCSTAT;
665   unsigned IOCTL_FDGETMAXERRS = FDGETMAXERRS;
666   unsigned IOCTL_FDGETPRM = FDGETPRM;
667   unsigned IOCTL_FDMSGOFF = FDMSGOFF;
668   unsigned IOCTL_FDMSGON = FDMSGON;
669   unsigned IOCTL_FDPOLLDRVSTAT = FDPOLLDRVSTAT;
670   unsigned IOCTL_FDRAWCMD = FDRAWCMD;
671   unsigned IOCTL_FDRESET = FDRESET;
672   unsigned IOCTL_FDSETDRVPRM = FDSETDRVPRM;
673   unsigned IOCTL_FDSETEMSGTRESH = FDSETEMSGTRESH;
674   unsigned IOCTL_FDSETMAXERRS = FDSETMAXERRS;
675   unsigned IOCTL_FDSETPRM = FDSETPRM;
676   unsigned IOCTL_FDTWADDLE = FDTWADDLE;
677   unsigned IOCTL_FDWERRORCLR = FDWERRORCLR;
678   unsigned IOCTL_FDWERRORGET = FDWERRORGET;
679   unsigned IOCTL_HDIO_DRIVE_CMD = HDIO_DRIVE_CMD;
680   unsigned IOCTL_HDIO_GETGEO = HDIO_GETGEO;
681   unsigned IOCTL_HDIO_GET_32BIT = HDIO_GET_32BIT;
682   unsigned IOCTL_HDIO_GET_DMA = HDIO_GET_DMA;
683   unsigned IOCTL_HDIO_GET_IDENTITY = HDIO_GET_IDENTITY;
684   unsigned IOCTL_HDIO_GET_KEEPSETTINGS = HDIO_GET_KEEPSETTINGS;
685   unsigned IOCTL_HDIO_GET_MULTCOUNT = HDIO_GET_MULTCOUNT;
686   unsigned IOCTL_HDIO_GET_NOWERR = HDIO_GET_NOWERR;
687   unsigned IOCTL_HDIO_GET_UNMASKINTR = HDIO_GET_UNMASKINTR;
688   unsigned IOCTL_HDIO_SET_32BIT = HDIO_SET_32BIT;
689   unsigned IOCTL_HDIO_SET_DMA = HDIO_SET_DMA;
690   unsigned IOCTL_HDIO_SET_KEEPSETTINGS = HDIO_SET_KEEPSETTINGS;
691   unsigned IOCTL_HDIO_SET_MULTCOUNT = HDIO_SET_MULTCOUNT;
692   unsigned IOCTL_HDIO_SET_NOWERR = HDIO_SET_NOWERR;
693   unsigned IOCTL_HDIO_SET_UNMASKINTR = HDIO_SET_UNMASKINTR;
694   unsigned IOCTL_MTIOCPOS = MTIOCPOS;
695   unsigned IOCTL_PPPIOCGASYNCMAP = PPPIOCGASYNCMAP;
696   unsigned IOCTL_PPPIOCGDEBUG = PPPIOCGDEBUG;
697   unsigned IOCTL_PPPIOCGFLAGS = PPPIOCGFLAGS;
698   unsigned IOCTL_PPPIOCGUNIT = PPPIOCGUNIT;
699   unsigned IOCTL_PPPIOCGXASYNCMAP = PPPIOCGXASYNCMAP;
700   unsigned IOCTL_PPPIOCSASYNCMAP = PPPIOCSASYNCMAP;
701   unsigned IOCTL_PPPIOCSDEBUG = PPPIOCSDEBUG;
702   unsigned IOCTL_PPPIOCSFLAGS = PPPIOCSFLAGS;
703   unsigned IOCTL_PPPIOCSMAXCID = PPPIOCSMAXCID;
704   unsigned IOCTL_PPPIOCSMRU = PPPIOCSMRU;
705   unsigned IOCTL_PPPIOCSXASYNCMAP = PPPIOCSXASYNCMAP;
706   unsigned IOCTL_SIOCADDRT = SIOCADDRT;
707   unsigned IOCTL_SIOCDARP = SIOCDARP;
708   unsigned IOCTL_SIOCDELRT = SIOCDELRT;
709   unsigned IOCTL_SIOCDRARP = SIOCDRARP;
710   unsigned IOCTL_SIOCGARP = SIOCGARP;
711   unsigned IOCTL_SIOCGIFENCAP = SIOCGIFENCAP;
712   unsigned IOCTL_SIOCGIFHWADDR = SIOCGIFHWADDR;
713   unsigned IOCTL_SIOCGIFMAP = SIOCGIFMAP;
714   unsigned IOCTL_SIOCGIFMEM = SIOCGIFMEM;
715   unsigned IOCTL_SIOCGIFNAME = SIOCGIFNAME;
716   unsigned IOCTL_SIOCGIFSLAVE = SIOCGIFSLAVE;
717   unsigned IOCTL_SIOCGRARP = SIOCGRARP;
718   unsigned IOCTL_SIOCGSTAMP = SIOCGSTAMP;
719   unsigned IOCTL_SIOCSARP = SIOCSARP;
720   unsigned IOCTL_SIOCSIFENCAP = SIOCSIFENCAP;
721   unsigned IOCTL_SIOCSIFHWADDR = SIOCSIFHWADDR;
722   unsigned IOCTL_SIOCSIFLINK = SIOCSIFLINK;
723   unsigned IOCTL_SIOCSIFMAP = SIOCSIFMAP;
724   unsigned IOCTL_SIOCSIFMEM = SIOCSIFMEM;
725   unsigned IOCTL_SIOCSIFSLAVE = SIOCSIFSLAVE;
726   unsigned IOCTL_SIOCSRARP = SIOCSRARP;
727 # if SOUND_VERSION >= 0x040000
728   unsigned IOCTL_SNDCTL_COPR_HALT = IOCTL_NOT_PRESENT;
729   unsigned IOCTL_SNDCTL_COPR_LOAD = IOCTL_NOT_PRESENT;
730   unsigned IOCTL_SNDCTL_COPR_RCODE = IOCTL_NOT_PRESENT;
731   unsigned IOCTL_SNDCTL_COPR_RCVMSG = IOCTL_NOT_PRESENT;
732   unsigned IOCTL_SNDCTL_COPR_RDATA = IOCTL_NOT_PRESENT;
733   unsigned IOCTL_SNDCTL_COPR_RESET = IOCTL_NOT_PRESENT;
734   unsigned IOCTL_SNDCTL_COPR_RUN = IOCTL_NOT_PRESENT;
735   unsigned IOCTL_SNDCTL_COPR_SENDMSG = IOCTL_NOT_PRESENT;
736   unsigned IOCTL_SNDCTL_COPR_WCODE = IOCTL_NOT_PRESENT;
737   unsigned IOCTL_SNDCTL_COPR_WDATA = IOCTL_NOT_PRESENT;
738   unsigned IOCTL_SOUND_PCM_READ_BITS = IOCTL_NOT_PRESENT;
739   unsigned IOCTL_SOUND_PCM_READ_CHANNELS = IOCTL_NOT_PRESENT;
740   unsigned IOCTL_SOUND_PCM_READ_FILTER = IOCTL_NOT_PRESENT;
741   unsigned IOCTL_SOUND_PCM_READ_RATE = IOCTL_NOT_PRESENT;
742   unsigned IOCTL_SOUND_PCM_WRITE_CHANNELS = IOCTL_NOT_PRESENT;
743   unsigned IOCTL_SOUND_PCM_WRITE_FILTER = IOCTL_NOT_PRESENT;
744 # else  // SOUND_VERSION
745   unsigned IOCTL_SNDCTL_COPR_HALT = SNDCTL_COPR_HALT;
746   unsigned IOCTL_SNDCTL_COPR_LOAD = SNDCTL_COPR_LOAD;
747   unsigned IOCTL_SNDCTL_COPR_RCODE = SNDCTL_COPR_RCODE;
748   unsigned IOCTL_SNDCTL_COPR_RCVMSG = SNDCTL_COPR_RCVMSG;
749   unsigned IOCTL_SNDCTL_COPR_RDATA = SNDCTL_COPR_RDATA;
750   unsigned IOCTL_SNDCTL_COPR_RESET = SNDCTL_COPR_RESET;
751   unsigned IOCTL_SNDCTL_COPR_RUN = SNDCTL_COPR_RUN;
752   unsigned IOCTL_SNDCTL_COPR_SENDMSG = SNDCTL_COPR_SENDMSG;
753   unsigned IOCTL_SNDCTL_COPR_WCODE = SNDCTL_COPR_WCODE;
754   unsigned IOCTL_SNDCTL_COPR_WDATA = SNDCTL_COPR_WDATA;
755   unsigned IOCTL_SOUND_PCM_READ_BITS = SOUND_PCM_READ_BITS;
756   unsigned IOCTL_SOUND_PCM_READ_CHANNELS = SOUND_PCM_READ_CHANNELS;
757   unsigned IOCTL_SOUND_PCM_READ_FILTER = SOUND_PCM_READ_FILTER;
758   unsigned IOCTL_SOUND_PCM_READ_RATE = SOUND_PCM_READ_RATE;
759   unsigned IOCTL_SOUND_PCM_WRITE_CHANNELS = SOUND_PCM_WRITE_CHANNELS;
760   unsigned IOCTL_SOUND_PCM_WRITE_FILTER = SOUND_PCM_WRITE_FILTER;
761 #endif // SOUND_VERSION
762   unsigned IOCTL_TCFLSH = TCFLSH;
763   unsigned IOCTL_TCGETA = TCGETA;
764   unsigned IOCTL_TCGETS = TCGETS;
765   unsigned IOCTL_TCSBRK = TCSBRK;
766   unsigned IOCTL_TCSBRKP = TCSBRKP;
767   unsigned IOCTL_TCSETA = TCSETA;
768   unsigned IOCTL_TCSETAF = TCSETAF;
769   unsigned IOCTL_TCSETAW = TCSETAW;
770   unsigned IOCTL_TCSETS = TCSETS;
771   unsigned IOCTL_TCSETSF = TCSETSF;
772   unsigned IOCTL_TCSETSW = TCSETSW;
773   unsigned IOCTL_TCXONC = TCXONC;
774   unsigned IOCTL_TIOCGLCKTRMIOS = TIOCGLCKTRMIOS;
775   unsigned IOCTL_TIOCGSOFTCAR = TIOCGSOFTCAR;
776   unsigned IOCTL_TIOCINQ = TIOCINQ;
777   unsigned IOCTL_TIOCLINUX = TIOCLINUX;
778   unsigned IOCTL_TIOCSERCONFIG = TIOCSERCONFIG;
779   unsigned IOCTL_TIOCSERGETLSR = TIOCSERGETLSR;
780   unsigned IOCTL_TIOCSERGWILD = TIOCSERGWILD;
781   unsigned IOCTL_TIOCSERSWILD = TIOCSERSWILD;
782   unsigned IOCTL_TIOCSLCKTRMIOS = TIOCSLCKTRMIOS;
783   unsigned IOCTL_TIOCSSOFTCAR = TIOCSSOFTCAR;
784   unsigned IOCTL_VT_DISALLOCATE = VT_DISALLOCATE;
785   unsigned IOCTL_VT_GETSTATE = VT_GETSTATE;
786   unsigned IOCTL_VT_RESIZE = VT_RESIZE;
787   unsigned IOCTL_VT_RESIZEX = VT_RESIZEX;
788   unsigned IOCTL_VT_SENDSIG = VT_SENDSIG;
789   unsigned IOCTL_MTIOCGET = MTIOCGET;
790   unsigned IOCTL_MTIOCTOP = MTIOCTOP;
791   unsigned IOCTL_SNDCTL_DSP_GETBLKSIZE = SNDCTL_DSP_GETBLKSIZE;
792   unsigned IOCTL_SNDCTL_DSP_GETFMTS = SNDCTL_DSP_GETFMTS;
793   unsigned IOCTL_SNDCTL_DSP_NONBLOCK = SNDCTL_DSP_NONBLOCK;
794   unsigned IOCTL_SNDCTL_DSP_POST = SNDCTL_DSP_POST;
795   unsigned IOCTL_SNDCTL_DSP_RESET = SNDCTL_DSP_RESET;
796   unsigned IOCTL_SNDCTL_DSP_SETFMT = SNDCTL_DSP_SETFMT;
797   unsigned IOCTL_SNDCTL_DSP_SETFRAGMENT = SNDCTL_DSP_SETFRAGMENT;
798   unsigned IOCTL_SNDCTL_DSP_SPEED = SNDCTL_DSP_SPEED;
799   unsigned IOCTL_SNDCTL_DSP_STEREO = SNDCTL_DSP_STEREO;
800   unsigned IOCTL_SNDCTL_DSP_SUBDIVIDE = SNDCTL_DSP_SUBDIVIDE;
801   unsigned IOCTL_SNDCTL_DSP_SYNC = SNDCTL_DSP_SYNC;
802   unsigned IOCTL_SNDCTL_FM_4OP_ENABLE = SNDCTL_FM_4OP_ENABLE;
803   unsigned IOCTL_SNDCTL_FM_LOAD_INSTR = SNDCTL_FM_LOAD_INSTR;
804   unsigned IOCTL_SNDCTL_MIDI_INFO = SNDCTL_MIDI_INFO;
805   unsigned IOCTL_SNDCTL_MIDI_PRETIME = SNDCTL_MIDI_PRETIME;
806   unsigned IOCTL_SNDCTL_SEQ_CTRLRATE = SNDCTL_SEQ_CTRLRATE;
807   unsigned IOCTL_SNDCTL_SEQ_GETINCOUNT = SNDCTL_SEQ_GETINCOUNT;
808   unsigned IOCTL_SNDCTL_SEQ_GETOUTCOUNT = SNDCTL_SEQ_GETOUTCOUNT;
809   unsigned IOCTL_SNDCTL_SEQ_NRMIDIS = SNDCTL_SEQ_NRMIDIS;
810   unsigned IOCTL_SNDCTL_SEQ_NRSYNTHS = SNDCTL_SEQ_NRSYNTHS;
811   unsigned IOCTL_SNDCTL_SEQ_OUTOFBAND = SNDCTL_SEQ_OUTOFBAND;
812   unsigned IOCTL_SNDCTL_SEQ_PANIC = SNDCTL_SEQ_PANIC;
813   unsigned IOCTL_SNDCTL_SEQ_PERCMODE = SNDCTL_SEQ_PERCMODE;
814   unsigned IOCTL_SNDCTL_SEQ_RESET = SNDCTL_SEQ_RESET;
815   unsigned IOCTL_SNDCTL_SEQ_RESETSAMPLES = SNDCTL_SEQ_RESETSAMPLES;
816   unsigned IOCTL_SNDCTL_SEQ_SYNC = SNDCTL_SEQ_SYNC;
817   unsigned IOCTL_SNDCTL_SEQ_TESTMIDI = SNDCTL_SEQ_TESTMIDI;
818   unsigned IOCTL_SNDCTL_SEQ_THRESHOLD = SNDCTL_SEQ_THRESHOLD;
819   unsigned IOCTL_SNDCTL_SYNTH_INFO = SNDCTL_SYNTH_INFO;
820   unsigned IOCTL_SNDCTL_SYNTH_MEMAVL = SNDCTL_SYNTH_MEMAVL;
821   unsigned IOCTL_SNDCTL_TMR_CONTINUE = SNDCTL_TMR_CONTINUE;
822   unsigned IOCTL_SNDCTL_TMR_METRONOME = SNDCTL_TMR_METRONOME;
823   unsigned IOCTL_SNDCTL_TMR_SELECT = SNDCTL_TMR_SELECT;
824   unsigned IOCTL_SNDCTL_TMR_SOURCE = SNDCTL_TMR_SOURCE;
825   unsigned IOCTL_SNDCTL_TMR_START = SNDCTL_TMR_START;
826   unsigned IOCTL_SNDCTL_TMR_STOP = SNDCTL_TMR_STOP;
827   unsigned IOCTL_SNDCTL_TMR_TEMPO = SNDCTL_TMR_TEMPO;
828   unsigned IOCTL_SNDCTL_TMR_TIMEBASE = SNDCTL_TMR_TIMEBASE;
829   unsigned IOCTL_SOUND_MIXER_READ_ALTPCM = SOUND_MIXER_READ_ALTPCM;
830   unsigned IOCTL_SOUND_MIXER_READ_BASS = SOUND_MIXER_READ_BASS;
831   unsigned IOCTL_SOUND_MIXER_READ_CAPS = SOUND_MIXER_READ_CAPS;
832   unsigned IOCTL_SOUND_MIXER_READ_CD = SOUND_MIXER_READ_CD;
833   unsigned IOCTL_SOUND_MIXER_READ_DEVMASK = SOUND_MIXER_READ_DEVMASK;
834   unsigned IOCTL_SOUND_MIXER_READ_ENHANCE = SOUND_MIXER_READ_ENHANCE;
835   unsigned IOCTL_SOUND_MIXER_READ_IGAIN = SOUND_MIXER_READ_IGAIN;
836   unsigned IOCTL_SOUND_MIXER_READ_IMIX = SOUND_MIXER_READ_IMIX;
837   unsigned IOCTL_SOUND_MIXER_READ_LINE = SOUND_MIXER_READ_LINE;
838   unsigned IOCTL_SOUND_MIXER_READ_LINE1 = SOUND_MIXER_READ_LINE1;
839   unsigned IOCTL_SOUND_MIXER_READ_LINE2 = SOUND_MIXER_READ_LINE2;
840   unsigned IOCTL_SOUND_MIXER_READ_LINE3 = SOUND_MIXER_READ_LINE3;
841   unsigned IOCTL_SOUND_MIXER_READ_LOUD = SOUND_MIXER_READ_LOUD;
842   unsigned IOCTL_SOUND_MIXER_READ_MIC = SOUND_MIXER_READ_MIC;
843   unsigned IOCTL_SOUND_MIXER_READ_MUTE = SOUND_MIXER_READ_MUTE;
844   unsigned IOCTL_SOUND_MIXER_READ_OGAIN = SOUND_MIXER_READ_OGAIN;
845   unsigned IOCTL_SOUND_MIXER_READ_PCM = SOUND_MIXER_READ_PCM;
846   unsigned IOCTL_SOUND_MIXER_READ_RECLEV = SOUND_MIXER_READ_RECLEV;
847   unsigned IOCTL_SOUND_MIXER_READ_RECMASK = SOUND_MIXER_READ_RECMASK;
848   unsigned IOCTL_SOUND_MIXER_READ_RECSRC = SOUND_MIXER_READ_RECSRC;
849   unsigned IOCTL_SOUND_MIXER_READ_SPEAKER = SOUND_MIXER_READ_SPEAKER;
850   unsigned IOCTL_SOUND_MIXER_READ_STEREODEVS = SOUND_MIXER_READ_STEREODEVS;
851   unsigned IOCTL_SOUND_MIXER_READ_SYNTH = SOUND_MIXER_READ_SYNTH;
852   unsigned IOCTL_SOUND_MIXER_READ_TREBLE = SOUND_MIXER_READ_TREBLE;
853   unsigned IOCTL_SOUND_MIXER_READ_VOLUME = SOUND_MIXER_READ_VOLUME;
854   unsigned IOCTL_SOUND_MIXER_WRITE_ALTPCM = SOUND_MIXER_WRITE_ALTPCM;
855   unsigned IOCTL_SOUND_MIXER_WRITE_BASS = SOUND_MIXER_WRITE_BASS;
856   unsigned IOCTL_SOUND_MIXER_WRITE_CD = SOUND_MIXER_WRITE_CD;
857   unsigned IOCTL_SOUND_MIXER_WRITE_ENHANCE = SOUND_MIXER_WRITE_ENHANCE;
858   unsigned IOCTL_SOUND_MIXER_WRITE_IGAIN = SOUND_MIXER_WRITE_IGAIN;
859   unsigned IOCTL_SOUND_MIXER_WRITE_IMIX = SOUND_MIXER_WRITE_IMIX;
860   unsigned IOCTL_SOUND_MIXER_WRITE_LINE = SOUND_MIXER_WRITE_LINE;
861   unsigned IOCTL_SOUND_MIXER_WRITE_LINE1 = SOUND_MIXER_WRITE_LINE1;
862   unsigned IOCTL_SOUND_MIXER_WRITE_LINE2 = SOUND_MIXER_WRITE_LINE2;
863   unsigned IOCTL_SOUND_MIXER_WRITE_LINE3 = SOUND_MIXER_WRITE_LINE3;
864   unsigned IOCTL_SOUND_MIXER_WRITE_LOUD = SOUND_MIXER_WRITE_LOUD;
865   unsigned IOCTL_SOUND_MIXER_WRITE_MIC = SOUND_MIXER_WRITE_MIC;
866   unsigned IOCTL_SOUND_MIXER_WRITE_MUTE = SOUND_MIXER_WRITE_MUTE;
867   unsigned IOCTL_SOUND_MIXER_WRITE_OGAIN = SOUND_MIXER_WRITE_OGAIN;
868   unsigned IOCTL_SOUND_MIXER_WRITE_PCM = SOUND_MIXER_WRITE_PCM;
869   unsigned IOCTL_SOUND_MIXER_WRITE_RECLEV = SOUND_MIXER_WRITE_RECLEV;
870   unsigned IOCTL_SOUND_MIXER_WRITE_RECSRC = SOUND_MIXER_WRITE_RECSRC;
871   unsigned IOCTL_SOUND_MIXER_WRITE_SPEAKER = SOUND_MIXER_WRITE_SPEAKER;
872   unsigned IOCTL_SOUND_MIXER_WRITE_SYNTH = SOUND_MIXER_WRITE_SYNTH;
873   unsigned IOCTL_SOUND_MIXER_WRITE_TREBLE = SOUND_MIXER_WRITE_TREBLE;
874   unsigned IOCTL_SOUND_MIXER_WRITE_VOLUME = SOUND_MIXER_WRITE_VOLUME;
875   unsigned IOCTL_VT_ACTIVATE = VT_ACTIVATE;
876   unsigned IOCTL_VT_GETMODE = VT_GETMODE;
877   unsigned IOCTL_VT_OPENQRY = VT_OPENQRY;
878   unsigned IOCTL_VT_RELDISP = VT_RELDISP;
879   unsigned IOCTL_VT_SETMODE = VT_SETMODE;
880   unsigned IOCTL_VT_WAITACTIVE = VT_WAITACTIVE;
881 #endif // SANITIZER_LINUX
882 
883 #if SANITIZER_LINUX && !SANITIZER_ANDROID
884   unsigned IOCTL_EQL_EMANCIPATE = EQL_EMANCIPATE;
885   unsigned IOCTL_EQL_ENSLAVE = EQL_ENSLAVE;
886   unsigned IOCTL_EQL_GETMASTRCFG = EQL_GETMASTRCFG;
887   unsigned IOCTL_EQL_GETSLAVECFG = EQL_GETSLAVECFG;
888   unsigned IOCTL_EQL_SETMASTRCFG = EQL_SETMASTRCFG;
889   unsigned IOCTL_EQL_SETSLAVECFG = EQL_SETSLAVECFG;
890 #if EV_VERSION > (0x010000)
891   unsigned IOCTL_EVIOCGKEYCODE_V2 = EVIOCGKEYCODE_V2;
892   unsigned IOCTL_EVIOCGPROP = EVIOCGPROP(0);
893   unsigned IOCTL_EVIOCSKEYCODE_V2 = EVIOCSKEYCODE_V2;
894 #else
895   unsigned IOCTL_EVIOCGKEYCODE_V2 = IOCTL_NOT_PRESENT;
896   unsigned IOCTL_EVIOCGPROP = IOCTL_NOT_PRESENT;
897   unsigned IOCTL_EVIOCSKEYCODE_V2 = IOCTL_NOT_PRESENT;
898 #endif
899   unsigned IOCTL_FS_IOC_GETFLAGS = _IOR('f', 1, long);
900   unsigned IOCTL_FS_IOC_GETVERSION = _IOR('v', 1, long);
901   unsigned IOCTL_FS_IOC_SETFLAGS = _IOW('f', 2, long);
902   unsigned IOCTL_FS_IOC_SETVERSION = _IOW('v', 2, long);
903   unsigned IOCTL_GIO_CMAP = GIO_CMAP;
904   unsigned IOCTL_GIO_FONT = GIO_FONT;
905   unsigned IOCTL_GIO_UNIMAP = GIO_UNIMAP;
906   unsigned IOCTL_GIO_UNISCRNMAP = GIO_UNISCRNMAP;
907   unsigned IOCTL_KDADDIO = KDADDIO;
908   unsigned IOCTL_KDDELIO = KDDELIO;
909   unsigned IOCTL_KDGETKEYCODE = KDGETKEYCODE;
910   unsigned IOCTL_KDGKBDIACR = KDGKBDIACR;
911   unsigned IOCTL_KDGKBENT = KDGKBENT;
912   unsigned IOCTL_KDGKBLED = KDGKBLED;
913   unsigned IOCTL_KDGKBMETA = KDGKBMETA;
914   unsigned IOCTL_KDGKBSENT = KDGKBSENT;
915   unsigned IOCTL_KDMAPDISP = KDMAPDISP;
916   unsigned IOCTL_KDSETKEYCODE = KDSETKEYCODE;
917   unsigned IOCTL_KDSIGACCEPT = KDSIGACCEPT;
918   unsigned IOCTL_KDSKBDIACR = KDSKBDIACR;
919   unsigned IOCTL_KDSKBENT = KDSKBENT;
920   unsigned IOCTL_KDSKBLED = KDSKBLED;
921   unsigned IOCTL_KDSKBMETA = KDSKBMETA;
922   unsigned IOCTL_KDSKBSENT = KDSKBSENT;
923   unsigned IOCTL_KDUNMAPDISP = KDUNMAPDISP;
924   unsigned IOCTL_LPABORT = LPABORT;
925   unsigned IOCTL_LPABORTOPEN = LPABORTOPEN;
926   unsigned IOCTL_LPCAREFUL = LPCAREFUL;
927   unsigned IOCTL_LPCHAR = LPCHAR;
928   unsigned IOCTL_LPGETIRQ = LPGETIRQ;
929   unsigned IOCTL_LPGETSTATUS = LPGETSTATUS;
930   unsigned IOCTL_LPRESET = LPRESET;
931   unsigned IOCTL_LPSETIRQ = LPSETIRQ;
932   unsigned IOCTL_LPTIME = LPTIME;
933   unsigned IOCTL_LPWAIT = LPWAIT;
934   unsigned IOCTL_MTIOCGETCONFIG = MTIOCGETCONFIG;
935   unsigned IOCTL_MTIOCSETCONFIG = MTIOCSETCONFIG;
936   unsigned IOCTL_PIO_CMAP = PIO_CMAP;
937   unsigned IOCTL_PIO_FONT = PIO_FONT;
938   unsigned IOCTL_PIO_UNIMAP = PIO_UNIMAP;
939   unsigned IOCTL_PIO_UNIMAPCLR = PIO_UNIMAPCLR;
940   unsigned IOCTL_PIO_UNISCRNMAP = PIO_UNISCRNMAP;
941 #if SANITIZER_GLIBC
942   unsigned IOCTL_SCSI_IOCTL_GET_IDLUN = SCSI_IOCTL_GET_IDLUN;
943   unsigned IOCTL_SCSI_IOCTL_PROBE_HOST = SCSI_IOCTL_PROBE_HOST;
944   unsigned IOCTL_SCSI_IOCTL_TAGGED_DISABLE = SCSI_IOCTL_TAGGED_DISABLE;
945   unsigned IOCTL_SCSI_IOCTL_TAGGED_ENABLE = SCSI_IOCTL_TAGGED_ENABLE;
946   unsigned IOCTL_SIOCAIPXITFCRT = SIOCAIPXITFCRT;
947   unsigned IOCTL_SIOCAIPXPRISLT = SIOCAIPXPRISLT;
948   unsigned IOCTL_SIOCAX25ADDUID = SIOCAX25ADDUID;
949   unsigned IOCTL_SIOCAX25DELUID = SIOCAX25DELUID;
950   unsigned IOCTL_SIOCAX25GETPARMS = SIOCAX25GETPARMS;
951   unsigned IOCTL_SIOCAX25GETUID = SIOCAX25GETUID;
952   unsigned IOCTL_SIOCAX25NOUID = SIOCAX25NOUID;
953   unsigned IOCTL_SIOCAX25SETPARMS = SIOCAX25SETPARMS;
954   unsigned IOCTL_SIOCDEVPLIP = SIOCDEVPLIP;
955   unsigned IOCTL_SIOCIPXCFGDATA = SIOCIPXCFGDATA;
956   unsigned IOCTL_SIOCNRDECOBS = SIOCNRDECOBS;
957   unsigned IOCTL_SIOCNRGETPARMS = SIOCNRGETPARMS;
958   unsigned IOCTL_SIOCNRRTCTL = SIOCNRRTCTL;
959   unsigned IOCTL_SIOCNRSETPARMS = SIOCNRSETPARMS;
960 #endif
961   unsigned IOCTL_TIOCGSERIAL = TIOCGSERIAL;
962   unsigned IOCTL_TIOCSERGETMULTI = TIOCSERGETMULTI;
963   unsigned IOCTL_TIOCSERSETMULTI = TIOCSERSETMULTI;
964   unsigned IOCTL_TIOCSSERIAL = TIOCSSERIAL;
965 #endif // SANITIZER_LINUX && !SANITIZER_ANDROID
966 
967 #if SANITIZER_LINUX && !SANITIZER_ANDROID
968   unsigned IOCTL_GIO_SCRNMAP = GIO_SCRNMAP;
969   unsigned IOCTL_KDDISABIO = KDDISABIO;
970   unsigned IOCTL_KDENABIO = KDENABIO;
971   unsigned IOCTL_KDGETLED = KDGETLED;
972   unsigned IOCTL_KDGETMODE = KDGETMODE;
973   unsigned IOCTL_KDGKBMODE = KDGKBMODE;
974   unsigned IOCTL_KDGKBTYPE = KDGKBTYPE;
975   unsigned IOCTL_KDMKTONE = KDMKTONE;
976   unsigned IOCTL_KDSETLED = KDSETLED;
977   unsigned IOCTL_KDSETMODE = KDSETMODE;
978   unsigned IOCTL_KDSKBMODE = KDSKBMODE;
979   unsigned IOCTL_KIOCSOUND = KIOCSOUND;
980   unsigned IOCTL_PIO_SCRNMAP = PIO_SCRNMAP;
981   unsigned IOCTL_SNDCTL_DSP_GETISPACE = SNDCTL_DSP_GETISPACE;
982   unsigned IOCTL_SNDCTL_DSP_GETOSPACE = SNDCTL_DSP_GETOSPACE;
983 #endif // (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
984 
985   const int si_SEGV_MAPERR = SEGV_MAPERR;
986   const int si_SEGV_ACCERR = SEGV_ACCERR;
987 } // namespace __sanitizer
988 
989 using namespace __sanitizer;
990 
991 COMPILER_CHECK(sizeof(__sanitizer_pthread_attr_t) >= sizeof(pthread_attr_t));
992 
993 COMPILER_CHECK(sizeof(socklen_t) == sizeof(unsigned));
994 CHECK_TYPE_SIZE(pthread_key_t);
995 
996 #if SANITIZER_LINUX
997 // FIXME: We define those on Linux and Mac, but only check on Linux.
998 COMPILER_CHECK(IOC_NRBITS == _IOC_NRBITS);
999 COMPILER_CHECK(IOC_TYPEBITS == _IOC_TYPEBITS);
1000 COMPILER_CHECK(IOC_SIZEBITS == _IOC_SIZEBITS);
1001 COMPILER_CHECK(IOC_DIRBITS == _IOC_DIRBITS);
1002 COMPILER_CHECK(IOC_NRMASK == _IOC_NRMASK);
1003 COMPILER_CHECK(IOC_TYPEMASK == _IOC_TYPEMASK);
1004 COMPILER_CHECK(IOC_SIZEMASK == _IOC_SIZEMASK);
1005 COMPILER_CHECK(IOC_DIRMASK == _IOC_DIRMASK);
1006 COMPILER_CHECK(IOC_NRSHIFT == _IOC_NRSHIFT);
1007 COMPILER_CHECK(IOC_TYPESHIFT == _IOC_TYPESHIFT);
1008 COMPILER_CHECK(IOC_SIZESHIFT == _IOC_SIZESHIFT);
1009 COMPILER_CHECK(IOC_DIRSHIFT == _IOC_DIRSHIFT);
1010 COMPILER_CHECK(IOC_NONE == _IOC_NONE);
1011 COMPILER_CHECK(IOC_WRITE == _IOC_WRITE);
1012 COMPILER_CHECK(IOC_READ == _IOC_READ);
1013 COMPILER_CHECK(EVIOC_ABS_MAX == ABS_MAX);
1014 COMPILER_CHECK(EVIOC_EV_MAX == EV_MAX);
1015 COMPILER_CHECK(IOC_SIZE(0x12345678) == _IOC_SIZE(0x12345678));
1016 COMPILER_CHECK(IOC_DIR(0x12345678) == _IOC_DIR(0x12345678));
1017 COMPILER_CHECK(IOC_NR(0x12345678) == _IOC_NR(0x12345678));
1018 COMPILER_CHECK(IOC_TYPE(0x12345678) == _IOC_TYPE(0x12345678));
1019 #endif // SANITIZER_LINUX
1020 
1021 #if SANITIZER_LINUX || SANITIZER_FREEBSD
1022 // There are more undocumented fields in dl_phdr_info that we are not interested
1023 // in.
1024 COMPILER_CHECK(sizeof(__sanitizer_dl_phdr_info) <= sizeof(dl_phdr_info));
1025 CHECK_SIZE_AND_OFFSET(dl_phdr_info, dlpi_addr);
1026 CHECK_SIZE_AND_OFFSET(dl_phdr_info, dlpi_name);
1027 CHECK_SIZE_AND_OFFSET(dl_phdr_info, dlpi_phdr);
1028 CHECK_SIZE_AND_OFFSET(dl_phdr_info, dlpi_phnum);
1029 #endif // SANITIZER_LINUX || SANITIZER_FREEBSD
1030 
1031 #if SANITIZER_GLIBC || SANITIZER_FREEBSD
1032 CHECK_TYPE_SIZE(glob_t);
1033 CHECK_SIZE_AND_OFFSET(glob_t, gl_pathc);
1034 CHECK_SIZE_AND_OFFSET(glob_t, gl_pathv);
1035 CHECK_SIZE_AND_OFFSET(glob_t, gl_offs);
1036 CHECK_SIZE_AND_OFFSET(glob_t, gl_flags);
1037 CHECK_SIZE_AND_OFFSET(glob_t, gl_closedir);
1038 CHECK_SIZE_AND_OFFSET(glob_t, gl_readdir);
1039 CHECK_SIZE_AND_OFFSET(glob_t, gl_opendir);
1040 CHECK_SIZE_AND_OFFSET(glob_t, gl_lstat);
1041 CHECK_SIZE_AND_OFFSET(glob_t, gl_stat);
1042 #endif  // SANITIZER_GLIBC || SANITIZER_FREEBSD
1043 
1044 CHECK_TYPE_SIZE(addrinfo);
1045 CHECK_SIZE_AND_OFFSET(addrinfo, ai_flags);
1046 CHECK_SIZE_AND_OFFSET(addrinfo, ai_family);
1047 CHECK_SIZE_AND_OFFSET(addrinfo, ai_socktype);
1048 CHECK_SIZE_AND_OFFSET(addrinfo, ai_protocol);
1049 CHECK_SIZE_AND_OFFSET(addrinfo, ai_protocol);
1050 CHECK_SIZE_AND_OFFSET(addrinfo, ai_addrlen);
1051 CHECK_SIZE_AND_OFFSET(addrinfo, ai_canonname);
1052 CHECK_SIZE_AND_OFFSET(addrinfo, ai_addr);
1053 
1054 CHECK_TYPE_SIZE(hostent);
1055 CHECK_SIZE_AND_OFFSET(hostent, h_name);
1056 CHECK_SIZE_AND_OFFSET(hostent, h_aliases);
1057 CHECK_SIZE_AND_OFFSET(hostent, h_addrtype);
1058 CHECK_SIZE_AND_OFFSET(hostent, h_length);
1059 CHECK_SIZE_AND_OFFSET(hostent, h_addr_list);
1060 
1061 CHECK_TYPE_SIZE(iovec);
1062 CHECK_SIZE_AND_OFFSET(iovec, iov_base);
1063 CHECK_SIZE_AND_OFFSET(iovec, iov_len);
1064 
1065 // In POSIX, int msg_iovlen; socklen_t msg_controllen; socklen_t cmsg_len; but
1066 // many implementations don't conform to the standard. Since we pick the
1067 // non-conforming glibc definition, exclude the checks for musl (incompatible
1068 // sizes but compatible offsets).
1069 CHECK_TYPE_SIZE(msghdr);
1070 CHECK_SIZE_AND_OFFSET(msghdr, msg_name);
1071 CHECK_SIZE_AND_OFFSET(msghdr, msg_namelen);
1072 CHECK_SIZE_AND_OFFSET(msghdr, msg_iov);
1073 #if SANITIZER_GLIBC || SANITIZER_ANDROID
1074 CHECK_SIZE_AND_OFFSET(msghdr, msg_iovlen);
1075 #endif
1076 CHECK_SIZE_AND_OFFSET(msghdr, msg_control);
1077 #if SANITIZER_GLIBC || SANITIZER_ANDROID
1078 CHECK_SIZE_AND_OFFSET(msghdr, msg_controllen);
1079 #endif
1080 CHECK_SIZE_AND_OFFSET(msghdr, msg_flags);
1081 
1082 CHECK_TYPE_SIZE(cmsghdr);
1083 #if SANITIZER_GLIBC || SANITIZER_ANDROID
1084 CHECK_SIZE_AND_OFFSET(cmsghdr, cmsg_len);
1085 #endif
1086 CHECK_SIZE_AND_OFFSET(cmsghdr, cmsg_level);
1087 CHECK_SIZE_AND_OFFSET(cmsghdr, cmsg_type);
1088 
1089 #if SANITIZER_LINUX && (__ANDROID_API__ >= 21 || __GLIBC_PREREQ (2, 14))
1090 CHECK_TYPE_SIZE(mmsghdr);
1091 CHECK_SIZE_AND_OFFSET(mmsghdr, msg_hdr);
1092 CHECK_SIZE_AND_OFFSET(mmsghdr, msg_len);
1093 #endif
1094 
1095 COMPILER_CHECK(sizeof(__sanitizer_dirent) <= sizeof(dirent));
1096 CHECK_SIZE_AND_OFFSET(dirent, d_ino);
1097 #if SANITIZER_APPLE
1098 CHECK_SIZE_AND_OFFSET(dirent, d_seekoff);
1099 #elif SANITIZER_FREEBSD
1100 // There is no 'd_off' field on FreeBSD.
1101 #else
1102 CHECK_SIZE_AND_OFFSET(dirent, d_off);
1103 #endif
1104 CHECK_SIZE_AND_OFFSET(dirent, d_reclen);
1105 
1106 #if SANITIZER_GLIBC
1107 COMPILER_CHECK(sizeof(__sanitizer_dirent64) <= sizeof(dirent64));
1108 CHECK_SIZE_AND_OFFSET(dirent64, d_ino);
1109 CHECK_SIZE_AND_OFFSET(dirent64, d_off);
1110 CHECK_SIZE_AND_OFFSET(dirent64, d_reclen);
1111 #endif
1112 
1113 CHECK_TYPE_SIZE(ifconf);
1114 CHECK_SIZE_AND_OFFSET(ifconf, ifc_len);
1115 CHECK_SIZE_AND_OFFSET(ifconf, ifc_ifcu);
1116 
1117 CHECK_TYPE_SIZE(pollfd);
1118 CHECK_SIZE_AND_OFFSET(pollfd, fd);
1119 CHECK_SIZE_AND_OFFSET(pollfd, events);
1120 CHECK_SIZE_AND_OFFSET(pollfd, revents);
1121 
1122 CHECK_TYPE_SIZE(nfds_t);
1123 
1124 CHECK_TYPE_SIZE(sigset_t);
1125 
1126 COMPILER_CHECK(sizeof(__sanitizer_sigaction) == sizeof(struct sigaction));
1127 // Can't write checks for sa_handler and sa_sigaction due to them being
1128 // preprocessor macros.
1129 CHECK_STRUCT_SIZE_AND_OFFSET(sigaction, sa_mask);
1130 #if !defined(__s390x__) || __GLIBC_PREREQ (2, 20)
1131 // On s390x glibc 2.19 and earlier sa_flags was unsigned long, and sa_resv
1132 // didn't exist.
1133 CHECK_STRUCT_SIZE_AND_OFFSET(sigaction, sa_flags);
1134 #endif
1135 #if SANITIZER_LINUX && (!SANITIZER_ANDROID || !SANITIZER_MIPS32)
1136 CHECK_STRUCT_SIZE_AND_OFFSET(sigaction, sa_restorer);
1137 #endif
1138 
1139 #if SANITIZER_HAS_SIGINFO
1140 COMPILER_CHECK(alignof(siginfo_t) == alignof(__sanitizer_siginfo));
1141 using __sanitizer_siginfo_t = __sanitizer_siginfo;
1142 CHECK_TYPE_SIZE(siginfo_t);
1143 CHECK_SIZE_AND_OFFSET(siginfo_t, si_signo);
1144 CHECK_SIZE_AND_OFFSET(siginfo_t, si_errno);
1145 CHECK_SIZE_AND_OFFSET(siginfo_t, si_code);
1146 #endif
1147 
1148 #if SANITIZER_LINUX
1149 CHECK_TYPE_SIZE(__sysctl_args);
1150 CHECK_SIZE_AND_OFFSET(__sysctl_args, name);
1151 CHECK_SIZE_AND_OFFSET(__sysctl_args, nlen);
1152 CHECK_SIZE_AND_OFFSET(__sysctl_args, oldval);
1153 CHECK_SIZE_AND_OFFSET(__sysctl_args, oldlenp);
1154 CHECK_SIZE_AND_OFFSET(__sysctl_args, newval);
1155 CHECK_SIZE_AND_OFFSET(__sysctl_args, newlen);
1156 
1157 CHECK_TYPE_SIZE(__kernel_uid_t);
1158 CHECK_TYPE_SIZE(__kernel_gid_t);
1159 
1160 #if SANITIZER_USES_UID16_SYSCALLS
1161 CHECK_TYPE_SIZE(__kernel_old_uid_t);
1162 CHECK_TYPE_SIZE(__kernel_old_gid_t);
1163 #endif
1164 
1165 CHECK_TYPE_SIZE(__kernel_off_t);
1166 CHECK_TYPE_SIZE(__kernel_loff_t);
1167 CHECK_TYPE_SIZE(__kernel_fd_set);
1168 #endif
1169 
1170 #if !SANITIZER_ANDROID
1171 CHECK_TYPE_SIZE(wordexp_t);
1172 CHECK_SIZE_AND_OFFSET(wordexp_t, we_wordc);
1173 CHECK_SIZE_AND_OFFSET(wordexp_t, we_wordv);
1174 CHECK_SIZE_AND_OFFSET(wordexp_t, we_offs);
1175 #endif
1176 
1177 CHECK_TYPE_SIZE(tm);
1178 CHECK_SIZE_AND_OFFSET(tm, tm_sec);
1179 CHECK_SIZE_AND_OFFSET(tm, tm_min);
1180 CHECK_SIZE_AND_OFFSET(tm, tm_hour);
1181 CHECK_SIZE_AND_OFFSET(tm, tm_mday);
1182 CHECK_SIZE_AND_OFFSET(tm, tm_mon);
1183 CHECK_SIZE_AND_OFFSET(tm, tm_year);
1184 CHECK_SIZE_AND_OFFSET(tm, tm_wday);
1185 CHECK_SIZE_AND_OFFSET(tm, tm_yday);
1186 CHECK_SIZE_AND_OFFSET(tm, tm_isdst);
1187 CHECK_SIZE_AND_OFFSET(tm, tm_gmtoff);
1188 CHECK_SIZE_AND_OFFSET(tm, tm_zone);
1189 
1190 #if SANITIZER_LINUX
1191 CHECK_TYPE_SIZE(mntent);
1192 CHECK_SIZE_AND_OFFSET(mntent, mnt_fsname);
1193 CHECK_SIZE_AND_OFFSET(mntent, mnt_dir);
1194 CHECK_SIZE_AND_OFFSET(mntent, mnt_type);
1195 CHECK_SIZE_AND_OFFSET(mntent, mnt_opts);
1196 CHECK_SIZE_AND_OFFSET(mntent, mnt_freq);
1197 CHECK_SIZE_AND_OFFSET(mntent, mnt_passno);
1198 #endif
1199 
1200 CHECK_TYPE_SIZE(ether_addr);
1201 
1202 #if SANITIZER_GLIBC || SANITIZER_FREEBSD
1203 CHECK_TYPE_SIZE(ipc_perm);
1204 # if SANITIZER_FREEBSD
1205 CHECK_SIZE_AND_OFFSET(ipc_perm, key);
1206 CHECK_SIZE_AND_OFFSET(ipc_perm, seq);
1207 # else
1208 CHECK_SIZE_AND_OFFSET(ipc_perm, __key);
1209 CHECK_SIZE_AND_OFFSET(ipc_perm, __seq);
1210 # endif
1211 CHECK_SIZE_AND_OFFSET(ipc_perm, uid);
1212 CHECK_SIZE_AND_OFFSET(ipc_perm, gid);
1213 CHECK_SIZE_AND_OFFSET(ipc_perm, cuid);
1214 CHECK_SIZE_AND_OFFSET(ipc_perm, cgid);
1215 #if !SANITIZER_LINUX || __GLIBC_PREREQ (2, 31)
1216 /* glibc 2.30 and earlier provided 16-bit mode field instead of 32-bit
1217    on many architectures.  */
1218 CHECK_SIZE_AND_OFFSET(ipc_perm, mode);
1219 #endif
1220 
1221 CHECK_TYPE_SIZE(shmid_ds);
1222 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_perm);
1223 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_segsz);
1224 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_atime);
1225 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_dtime);
1226 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_ctime);
1227 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_cpid);
1228 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_lpid);
1229 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_nattch);
1230 #endif
1231 
1232 CHECK_TYPE_SIZE(clock_t);
1233 
1234 #if SANITIZER_LINUX
1235 CHECK_TYPE_SIZE(clockid_t);
1236 #endif
1237 
1238 #if !SANITIZER_ANDROID
1239 CHECK_TYPE_SIZE(ifaddrs);
1240 CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_next);
1241 CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_name);
1242 CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_addr);
1243 CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_netmask);
1244 #if SANITIZER_LINUX || SANITIZER_FREEBSD
1245 // Compare against the union, because we can't reach into the union in a
1246 // compliant way.
1247 #ifdef ifa_dstaddr
1248 #undef ifa_dstaddr
1249 #endif
1250 # if SANITIZER_FREEBSD
1251 CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_dstaddr);
1252 # else
1253 COMPILER_CHECK(sizeof(((__sanitizer_ifaddrs *)nullptr)->ifa_dstaddr) ==
1254                sizeof(((ifaddrs *)nullptr)->ifa_ifu));
1255 COMPILER_CHECK(offsetof(__sanitizer_ifaddrs, ifa_dstaddr) ==
1256                offsetof(ifaddrs, ifa_ifu));
1257 # endif // SANITIZER_FREEBSD
1258 #else
1259 CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_dstaddr);
1260 #endif // SANITIZER_LINUX
1261 CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_data);
1262 #endif
1263 
1264 #if SANITIZER_GLIBC || SANITIZER_ANDROID
1265 COMPILER_CHECK(sizeof(__sanitizer_struct_mallinfo) == sizeof(struct mallinfo));
1266 #endif
1267 
1268 #if !SANITIZER_ANDROID
1269 CHECK_TYPE_SIZE(timeb);
1270 CHECK_SIZE_AND_OFFSET(timeb, time);
1271 CHECK_SIZE_AND_OFFSET(timeb, millitm);
1272 CHECK_SIZE_AND_OFFSET(timeb, timezone);
1273 CHECK_SIZE_AND_OFFSET(timeb, dstflag);
1274 #endif
1275 
1276 CHECK_TYPE_SIZE(passwd);
1277 CHECK_SIZE_AND_OFFSET(passwd, pw_name);
1278 CHECK_SIZE_AND_OFFSET(passwd, pw_passwd);
1279 CHECK_SIZE_AND_OFFSET(passwd, pw_uid);
1280 CHECK_SIZE_AND_OFFSET(passwd, pw_gid);
1281 CHECK_SIZE_AND_OFFSET(passwd, pw_dir);
1282 CHECK_SIZE_AND_OFFSET(passwd, pw_shell);
1283 
1284 #if !SANITIZER_ANDROID
1285 CHECK_SIZE_AND_OFFSET(passwd, pw_gecos);
1286 #endif
1287 
1288 #if SANITIZER_APPLE
1289 CHECK_SIZE_AND_OFFSET(passwd, pw_change);
1290 CHECK_SIZE_AND_OFFSET(passwd, pw_expire);
1291 CHECK_SIZE_AND_OFFSET(passwd, pw_class);
1292 #endif
1293 
1294 
1295 CHECK_TYPE_SIZE(group);
1296 CHECK_SIZE_AND_OFFSET(group, gr_name);
1297 CHECK_SIZE_AND_OFFSET(group, gr_passwd);
1298 CHECK_SIZE_AND_OFFSET(group, gr_gid);
1299 CHECK_SIZE_AND_OFFSET(group, gr_mem);
1300 
1301 #if HAVE_RPC_XDR_H && !SANITIZER_APPLE
1302 CHECK_TYPE_SIZE(XDR);
1303 CHECK_SIZE_AND_OFFSET(XDR, x_op);
1304 CHECK_SIZE_AND_OFFSET(XDR, x_ops);
1305 CHECK_SIZE_AND_OFFSET(XDR, x_public);
1306 CHECK_SIZE_AND_OFFSET(XDR, x_private);
1307 CHECK_SIZE_AND_OFFSET(XDR, x_base);
1308 CHECK_SIZE_AND_OFFSET(XDR, x_handy);
1309 COMPILER_CHECK(__sanitizer_XDR_ENCODE == XDR_ENCODE);
1310 COMPILER_CHECK(__sanitizer_XDR_DECODE == XDR_DECODE);
1311 COMPILER_CHECK(__sanitizer_XDR_FREE == XDR_FREE);
1312 #endif
1313 
1314 #if SANITIZER_GLIBC
1315 COMPILER_CHECK(sizeof(__sanitizer_FILE) <= sizeof(FILE));
1316 CHECK_SIZE_AND_OFFSET(FILE, _flags);
1317 CHECK_SIZE_AND_OFFSET(FILE, _IO_read_ptr);
1318 CHECK_SIZE_AND_OFFSET(FILE, _IO_read_end);
1319 CHECK_SIZE_AND_OFFSET(FILE, _IO_read_base);
1320 CHECK_SIZE_AND_OFFSET(FILE, _IO_write_ptr);
1321 CHECK_SIZE_AND_OFFSET(FILE, _IO_write_end);
1322 CHECK_SIZE_AND_OFFSET(FILE, _IO_write_base);
1323 CHECK_SIZE_AND_OFFSET(FILE, _IO_buf_base);
1324 CHECK_SIZE_AND_OFFSET(FILE, _IO_buf_end);
1325 CHECK_SIZE_AND_OFFSET(FILE, _IO_save_base);
1326 CHECK_SIZE_AND_OFFSET(FILE, _IO_backup_base);
1327 CHECK_SIZE_AND_OFFSET(FILE, _IO_save_end);
1328 CHECK_SIZE_AND_OFFSET(FILE, _markers);
1329 CHECK_SIZE_AND_OFFSET(FILE, _chain);
1330 CHECK_SIZE_AND_OFFSET(FILE, _fileno);
1331 
1332 COMPILER_CHECK(sizeof(__sanitizer__obstack_chunk) <= sizeof(_obstack_chunk));
1333 CHECK_SIZE_AND_OFFSET(_obstack_chunk, limit);
1334 CHECK_SIZE_AND_OFFSET(_obstack_chunk, prev);
1335 CHECK_TYPE_SIZE(obstack);
1336 CHECK_SIZE_AND_OFFSET(obstack, chunk_size);
1337 CHECK_SIZE_AND_OFFSET(obstack, chunk);
1338 CHECK_SIZE_AND_OFFSET(obstack, object_base);
1339 CHECK_SIZE_AND_OFFSET(obstack, next_free);
1340 
1341 CHECK_TYPE_SIZE(cookie_io_functions_t);
1342 CHECK_SIZE_AND_OFFSET(cookie_io_functions_t, read);
1343 CHECK_SIZE_AND_OFFSET(cookie_io_functions_t, write);
1344 CHECK_SIZE_AND_OFFSET(cookie_io_functions_t, seek);
1345 CHECK_SIZE_AND_OFFSET(cookie_io_functions_t, close);
1346 #endif  // SANITIZER_GLIBC
1347 
1348 #if SANITIZER_LINUX || SANITIZER_FREEBSD
1349 CHECK_TYPE_SIZE(sem_t);
1350 #endif
1351 
1352 #if SANITIZER_LINUX && defined(__arm__)
1353 COMPILER_CHECK(ARM_VFPREGS_SIZE == ARM_VFPREGS_SIZE_ASAN);
1354 #endif
1355 
1356 #endif // SANITIZER_LINUX || SANITIZER_FREEBSD || SANITIZER_APPLE
1357