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 || SANITIZER_HAIKU
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 && !SANITIZER_HAIKU
56 #include <utmp.h>
57 #endif
58 
59 #if !SANITIZER_IOS
60 #include <net/route.h>
61 #endif
62 
63 #if !SANITIZER_ANDROID
64 #if !SANITIZER_HAIKU
65 #include <sys/mount.h>
66 #endif
67 #include <sys/timeb.h>
68 #include <utmpx.h>
69 #endif
70 
71 #if SANITIZER_LINUX
72 #include <malloc.h>
73 #include <mntent.h>
74 #include <netinet/ether.h>
75 #include <sys/sysinfo.h>
76 #include <sys/vt.h>
77 #include <linux/cdrom.h>
78 #include <linux/fd.h>
79 #if SANITIZER_ANDROID
80 #include <linux/fs.h>
81 #endif
82 #include <linux/hdreg.h>
83 #include <linux/input.h>
84 #include <linux/ioctl.h>
85 #include <linux/soundcard.h>
86 #include <linux/sysctl.h>
87 #include <linux/utsname.h>
88 #include <linux/posix_types.h>
89 #include <net/if_arp.h>
90 #endif
91 
92 #if SANITIZER_IOS
93 #undef IOC_DIRMASK
94 #endif
95 
96 #if SANITIZER_LINUX
97 # include <utime.h>
98 # include <sys/ptrace.h>
99 #    if defined(__mips64) || defined(__aarch64__) || defined(__arm__) ||       \
100         defined(__hexagon__) || defined(__loongarch__) || SANITIZER_RISCV64 || \
101         defined(__sparc__) || defined(__powerpc64__)
102 #      include <asm/ptrace.h>
103 #      ifdef __arm__
104 typedef struct user_fpregs elf_fpregset_t;
105 #   define ARM_VFPREGS_SIZE_ASAN (32 * 8 /*fpregs*/ + 4 /*fpscr*/)
106 #   if !defined(ARM_VFPREGS_SIZE)
107 #     define ARM_VFPREGS_SIZE ARM_VFPREGS_SIZE_ASAN
108 #   endif
109 #  endif
110 # endif
111 # include <semaphore.h>
112 #endif
113 
114 #if !SANITIZER_ANDROID
115 #include <ifaddrs.h>
116 #if !SANITIZER_HAIKU
117 #include <sys/ucontext.h>
118 #include <wordexp.h>
119 #endif
120 #endif
121 
122 #if SANITIZER_LINUX
123 #if SANITIZER_GLIBC
124 #include <fstab.h>
125 #      include <linux/filter.h>
126 #      include <net/if_ppp.h>
127 #      include <netax25/ax25.h>
128 #      include <netipx/ipx.h>
129 #      include <netrom/netrom.h>
130 #      include <obstack.h>
131 #      if HAVE_RPC_XDR_H
132 #        include <rpc/xdr.h>
133 #      endif
134 #      include <scsi/scsi.h>
135 #else
136 #include <linux/if_ppp.h>
137 #include <linux/kd.h>
138 #include <linux/ppp_defs.h>
139 #endif  // SANITIZER_GLIBC
140 
141 #if SANITIZER_ANDROID
142 #include <linux/mtio.h>
143 #else
144 #include <glob.h>
145 #include <mqueue.h>
146 #include <sys/kd.h>
147 #include <sys/mtio.h>
148 #include <sys/shm.h>
149 #include <sys/statvfs.h>
150 #include <sys/timex.h>
151 #if defined(__mips64)
152 # include <sys/procfs.h>
153 #endif
154 #include <sys/user.h>
155 #include <linux/if_eql.h>
156 #include <linux/if_plip.h>
157 #include <linux/lp.h>
158 #include <linux/mroute.h>
159 #include <linux/mroute6.h>
160 #include <linux/scc.h>
161 #include <linux/serial.h>
162 #include <sys/msg.h>
163 #include <sys/ipc.h>
164 #endif  // SANITIZER_ANDROID
165 
166 #include <link.h>
167 #include <sys/vfs.h>
168 #include <sys/epoll.h>
169 #include <linux/capability.h>
170 #elif !SANITIZER_HAIKU
171 #include <fstab.h>
172 #endif // SANITIZER_LINUX
173 
174 #if SANITIZER_APPLE
175 #include <net/ethernet.h>
176 #include <sys/filio.h>
177 #include <sys/sockio.h>
178 #endif
179 
180 #if SANITIZER_HAIKU
181 #include <sys/sockio.h>
182 #include <sys/ioctl.h>
183 #endif
184 
185 // Include these after system headers to avoid name clashes and ambiguities.
186 #  include "sanitizer_common.h"
187 #  include "sanitizer_internal_defs.h"
188 #  include "sanitizer_platform_interceptors.h"
189 #  include "sanitizer_platform_limits_posix.h"
190 
191 namespace __sanitizer {
192   unsigned struct_utsname_sz = sizeof(struct utsname);
193   unsigned struct_stat_sz = sizeof(struct stat);
194 #if SANITIZER_HAS_STAT64
195   unsigned struct_stat64_sz = sizeof(struct stat64);
196 #endif // SANITIZER_HAS_STAT64
197   unsigned struct_rusage_sz = sizeof(struct rusage);
198   unsigned struct_tm_sz = sizeof(struct tm);
199   unsigned struct_passwd_sz = sizeof(struct passwd);
200   unsigned struct_group_sz = sizeof(struct group);
201   unsigned siginfo_t_sz = sizeof(siginfo_t);
202   unsigned struct_sigaction_sz = sizeof(struct sigaction);
203   unsigned struct_stack_t_sz = sizeof(stack_t);
204   unsigned struct_itimerval_sz = sizeof(struct itimerval);
205   unsigned pthread_t_sz = sizeof(pthread_t);
206   unsigned pthread_mutex_t_sz = sizeof(pthread_mutex_t);
207   unsigned pthread_cond_t_sz = sizeof(pthread_cond_t);
208   unsigned pid_t_sz = sizeof(pid_t);
209   unsigned timeval_sz = sizeof(timeval);
210   unsigned uid_t_sz = sizeof(uid_t);
211   unsigned gid_t_sz = sizeof(gid_t);
212   unsigned mbstate_t_sz = sizeof(mbstate_t);
213   unsigned sigset_t_sz = sizeof(sigset_t);
214   unsigned struct_timezone_sz = sizeof(struct timezone);
215   unsigned struct_tms_sz = sizeof(struct tms);
216   unsigned struct_sigevent_sz = sizeof(struct sigevent);
217   unsigned struct_sched_param_sz = sizeof(struct sched_param);
218   unsigned struct_regex_sz = sizeof(regex_t);
219   unsigned struct_regmatch_sz = sizeof(regmatch_t);
220 
221 #if SANITIZER_HAS_STATFS64
222   unsigned struct_statfs64_sz = sizeof(struct statfs64);
223 #endif // SANITIZER_HAS_STATFS64
224 
225 #if SANITIZER_GLIBC || SANITIZER_FREEBSD || SANITIZER_NETBSD || SANITIZER_APPLE
226   unsigned struct_fstab_sz = sizeof(struct fstab);
227 #endif  // SANITIZER_GLIBC || SANITIZER_FREEBSD || SANITIZER_NETBSD ||
228         // SANITIZER_APPLE
229 #if !SANITIZER_ANDROID && !SANITIZER_HAIKU
230   unsigned struct_statfs_sz = sizeof(struct statfs);
231   unsigned struct_sockaddr_sz = sizeof(struct sockaddr);
232 
ucontext_t_sz(void * ctx)233   unsigned ucontext_t_sz(void *ctx) {
234 #    if SANITIZER_GLIBC && SANITIZER_X64
235     // Added in Linux kernel 3.4.0, merged to glibc in 2.16
236 #      ifndef FP_XSTATE_MAGIC1
237 #        define FP_XSTATE_MAGIC1 0x46505853U
238 #      endif
239     // See kernel arch/x86/kernel/fpu/signal.c for details.
240     const auto *fpregs = static_cast<ucontext_t *>(ctx)->uc_mcontext.fpregs;
241     // The member names differ across header versions, but the actual layout
242     // is always the same.  So avoid using members, just use arithmetic.
243     const uint32_t *after_xmm =
244         reinterpret_cast<const uint32_t *>(fpregs + 1) - 24;
245     if (after_xmm[12] == FP_XSTATE_MAGIC1)
246       return reinterpret_cast<const char *>(fpregs) + after_xmm[13] -
247              static_cast<const char *>(ctx);
248 #    endif
249     return sizeof(ucontext_t);
250   }
251 #  endif  // !SANITIZER_ANDROID
252 
253 #  if SANITIZER_LINUX
254   unsigned struct_epoll_event_sz = sizeof(struct epoll_event);
255   unsigned struct_sysinfo_sz = sizeof(struct sysinfo);
256   unsigned __user_cap_header_struct_sz =
257       sizeof(struct __user_cap_header_struct);
__user_cap_data_struct_sz(void * hdrp)258   unsigned __user_cap_data_struct_sz(void *hdrp) {
259     int u32s = 0;
260     if (hdrp) {
261       switch (((struct __user_cap_header_struct *)hdrp)->version) {
262       case _LINUX_CAPABILITY_VERSION_1:
263         u32s = _LINUX_CAPABILITY_U32S_1;
264         break;
265       case _LINUX_CAPABILITY_VERSION_2:
266         u32s = _LINUX_CAPABILITY_U32S_2;
267         break;
268       case _LINUX_CAPABILITY_VERSION_3:
269         u32s = _LINUX_CAPABILITY_U32S_3;
270         break;
271       }
272     }
273     return sizeof(struct __user_cap_data_struct) * u32s;
274   }
275   unsigned struct_new_utsname_sz = sizeof(struct new_utsname);
276   unsigned struct_old_utsname_sz = sizeof(struct old_utsname);
277   unsigned struct_oldold_utsname_sz = sizeof(struct oldold_utsname);
278 #endif // SANITIZER_LINUX
279 
280 #if SANITIZER_LINUX
281   unsigned struct_rlimit_sz = sizeof(struct rlimit);
282   unsigned struct_timespec_sz = sizeof(struct timespec);
283   unsigned struct_utimbuf_sz = sizeof(struct utimbuf);
284   unsigned struct_itimerspec_sz = sizeof(struct itimerspec);
285 #endif // SANITIZER_LINUX
286 
287 #if SANITIZER_GLIBC
288   // Use pre-computed size of struct ustat to avoid <sys/ustat.h> which
289   // has been removed from glibc 2.28.
290 #if defined(__aarch64__) || defined(__s390x__) || defined(__mips64) ||     \
291     defined(__powerpc64__) || defined(__arch64__) || defined(__sparcv9) || \
292     defined(__x86_64__) || SANITIZER_RISCV64
293 #define SIZEOF_STRUCT_USTAT 32
294 #    elif defined(__arm__) || defined(__i386__) || defined(__mips__) ||    \
295         defined(__powerpc__) || defined(__s390__) || defined(__sparc__) || \
296         defined(__hexagon__)
297 #      define SIZEOF_STRUCT_USTAT 20
298 #    elif defined(__loongarch__)
299   // Not used. The minimum Glibc version available for LoongArch is 2.36
300   // so ustat() wrapper is already gone.
301 #      define SIZEOF_STRUCT_USTAT 0
302 #    else
303 #      error Unknown size of struct ustat
304 #    endif
305   unsigned struct_ustat_sz = SIZEOF_STRUCT_USTAT;
306   unsigned struct_rlimit64_sz = sizeof(struct rlimit64);
307   unsigned struct_statvfs64_sz = sizeof(struct statvfs64);
308 #endif // SANITIZER_GLIBC
309 
310 #if SANITIZER_LINUX && !SANITIZER_ANDROID
311   unsigned struct_timex_sz = sizeof(struct timex);
312   unsigned struct_msqid_ds_sz = sizeof(struct msqid_ds);
313   unsigned struct_mq_attr_sz = sizeof(struct mq_attr);
314   unsigned struct_statvfs_sz = sizeof(struct statvfs);
315 #endif // SANITIZER_LINUX && !SANITIZER_ANDROID
316 
317   const uptr sig_ign = (uptr)SIG_IGN;
318   const uptr sig_dfl = (uptr)SIG_DFL;
319   const uptr sig_err = (uptr)SIG_ERR;
320   const uptr sa_siginfo = (uptr)SA_SIGINFO;
321 
322 #if SANITIZER_LINUX
323   int e_tabsz = (int)E_TABSZ;
324 #endif
325 
326 
327 #if SANITIZER_LINUX && !SANITIZER_ANDROID
328   unsigned struct_shminfo_sz = sizeof(struct shminfo);
329   unsigned struct_shm_info_sz = sizeof(struct shm_info);
330   int shmctl_ipc_stat = (int)IPC_STAT;
331   int shmctl_ipc_info = (int)IPC_INFO;
332   int shmctl_shm_info = (int)SHM_INFO;
333   int shmctl_shm_stat = (int)SHM_STAT;
334 #endif
335 
336 #if !SANITIZER_APPLE && !SANITIZER_FREEBSD && !SANITIZER_HAIKU
337   unsigned struct_utmp_sz = sizeof(struct utmp);
338 #endif
339 #if !SANITIZER_ANDROID
340   unsigned struct_utmpx_sz = sizeof(struct utmpx);
341 #endif
342 
343   int map_fixed = MAP_FIXED;
344 
345   int af_inet = (int)AF_INET;
346   int af_inet6 = (int)AF_INET6;
347 
__sanitizer_in_addr_sz(int af)348   uptr __sanitizer_in_addr_sz(int af) {
349     if (af == AF_INET)
350       return sizeof(struct in_addr);
351     else if (af == AF_INET6)
352       return sizeof(struct in6_addr);
353     else
354       return 0;
355   }
356 
357 #if SANITIZER_LINUX
358 unsigned struct_ElfW_Phdr_sz = sizeof(ElfW(Phdr));
359 #elif SANITIZER_FREEBSD
360 unsigned struct_ElfW_Phdr_sz = sizeof(Elf_Phdr);
361 #endif
362 
363 #if SANITIZER_GLIBC
364   int glob_nomatch = GLOB_NOMATCH;
365   int glob_altdirfunc = GLOB_ALTDIRFUNC;
366 #endif
367 
368 #  if !SANITIZER_ANDROID && !SANITIZER_HAIKU
369   const int wordexp_wrde_dooffs = WRDE_DOOFFS;
370 #  endif  // !SANITIZER_ANDROID && !SANITIZER_HAIKU
371 
372 #  if SANITIZER_LINUX && !SANITIZER_ANDROID &&                               \
373       (defined(__i386) || defined(__x86_64) || defined(__mips64) ||          \
374        defined(__powerpc64__) || defined(__aarch64__) || defined(__arm__) || \
375        defined(__s390__) || defined(__loongarch__) || SANITIZER_RISCV64 ||   \
376        defined(__sparc__))
377 #    if defined(__mips64) || defined(__powerpc64__) || defined(__arm__)
378   unsigned struct_user_regs_struct_sz = sizeof(struct pt_regs);
379   unsigned struct_user_fpregs_struct_sz = sizeof(elf_fpregset_t);
380 #elif SANITIZER_RISCV64
381   unsigned struct_user_regs_struct_sz = sizeof(struct user_regs_struct);
382   unsigned struct_user_fpregs_struct_sz = sizeof(struct __riscv_q_ext_state);
383 #elif defined(__aarch64__)
384   unsigned struct_user_regs_struct_sz = sizeof(struct user_pt_regs);
385   unsigned struct_user_fpregs_struct_sz = sizeof(struct user_fpsimd_state);
386 #elif defined(__loongarch__)
387   unsigned struct_user_regs_struct_sz = sizeof(struct user_pt_regs);
388   unsigned struct_user_fpregs_struct_sz = sizeof(struct user_fp_state);
389 #elif defined(__s390__)
390   unsigned struct_user_regs_struct_sz = sizeof(struct _user_regs_struct);
391   unsigned struct_user_fpregs_struct_sz = sizeof(struct _user_fpregs_struct);
392 #    elif defined(__sparc__)
393   unsigned struct_user_regs_struct_sz = sizeof(struct sunos_regs);
394   unsigned struct_user_fpregs_struct_sz = sizeof(struct sunos_fp);
395 #    else
396   unsigned struct_user_regs_struct_sz = sizeof(struct user_regs_struct);
397   unsigned struct_user_fpregs_struct_sz = sizeof(struct user_fpregs_struct);
398 #    endif  // __mips64 || __powerpc64__ || __aarch64__ || __loongarch__
399 #    if defined(__x86_64) || defined(__mips64) || defined(__powerpc64__) || \
400         defined(__aarch64__) || defined(__arm__) || defined(__s390__) ||    \
401         defined(__loongarch__) || SANITIZER_RISCV64 || defined(__sparc__)
402   unsigned struct_user_fpxregs_struct_sz = 0;
403 #else
404   unsigned struct_user_fpxregs_struct_sz = sizeof(struct user_fpxregs_struct);
405 #endif // __x86_64 || __mips64 || __powerpc64__ || __aarch64__ || __arm__
406   // || __s390__ || __loongarch__ || SANITIZER_RISCV64 || __sparc__
407 #    ifdef __arm__
408   unsigned struct_user_vfpregs_struct_sz = ARM_VFPREGS_SIZE;
409 #else
410   unsigned struct_user_vfpregs_struct_sz = 0;
411 #endif
412 
413   int ptrace_peektext = PTRACE_PEEKTEXT;
414   int ptrace_peekdata = PTRACE_PEEKDATA;
415   int ptrace_peekuser = PTRACE_PEEKUSER;
416 #if (defined(PTRACE_GETREGS) && defined(PTRACE_SETREGS)) || \
417     (defined(PT_GETREGS) && defined(PT_SETREGS))
418   int ptrace_getregs = PTRACE_GETREGS;
419   int ptrace_setregs = PTRACE_SETREGS;
420 #else
421   int ptrace_getregs = -1;
422   int ptrace_setregs = -1;
423 #endif
424 #if (defined(PTRACE_GETFPREGS) && defined(PTRACE_SETFPREGS)) || \
425     (defined(PT_GETFPREGS) && defined(PT_SETFPREGS))
426   int ptrace_getfpregs = PTRACE_GETFPREGS;
427   int ptrace_setfpregs = PTRACE_SETFPREGS;
428 #else
429   int ptrace_getfpregs = -1;
430   int ptrace_setfpregs = -1;
431 #endif
432 #if (defined(PTRACE_GETFPXREGS) && defined(PTRACE_SETFPXREGS)) || \
433     (defined(PT_GETFPXREGS) && defined(PT_SETFPXREGS))
434   int ptrace_getfpxregs = PTRACE_GETFPXREGS;
435   int ptrace_setfpxregs = PTRACE_SETFPXREGS;
436 #else
437   int ptrace_getfpxregs = -1;
438   int ptrace_setfpxregs = -1;
439 #endif // PTRACE_GETFPXREGS/PTRACE_SETFPXREGS
440 #if defined(PTRACE_GETVFPREGS) && defined(PTRACE_SETVFPREGS)
441   int ptrace_getvfpregs = PTRACE_GETVFPREGS;
442   int ptrace_setvfpregs = PTRACE_SETVFPREGS;
443 #else
444   int ptrace_getvfpregs = -1;
445   int ptrace_setvfpregs = -1;
446 #endif
447   int ptrace_geteventmsg = PTRACE_GETEVENTMSG;
448 #if (defined(PTRACE_GETSIGINFO) && defined(PTRACE_SETSIGINFO)) ||              \
449     (defined(PT_GETSIGINFO) && defined(PT_SETSIGINFO))
450   int ptrace_getsiginfo = PTRACE_GETSIGINFO;
451   int ptrace_setsiginfo = PTRACE_SETSIGINFO;
452 #else
453   int ptrace_getsiginfo = -1;
454   int ptrace_setsiginfo = -1;
455 #endif // PTRACE_GETSIGINFO/PTRACE_SETSIGINFO
456 #if defined(PTRACE_GETREGSET) && defined(PTRACE_SETREGSET)
457   int ptrace_getregset = PTRACE_GETREGSET;
458   int ptrace_setregset = PTRACE_SETREGSET;
459 #else
460   int ptrace_getregset = -1;
461   int ptrace_setregset = -1;
462 #endif // PTRACE_GETREGSET/PTRACE_SETREGSET
463 #endif
464 
465   unsigned path_max = PATH_MAX;
466 
467   // ioctl arguments
468   unsigned struct_ifreq_sz = sizeof(struct ifreq);
469   unsigned struct_termios_sz = sizeof(struct termios);
470   unsigned struct_winsize_sz = sizeof(struct winsize);
471 
472 #if SANITIZER_LINUX
473   unsigned struct_arpreq_sz = sizeof(struct arpreq);
474   unsigned struct_cdrom_msf_sz = sizeof(struct cdrom_msf);
475   unsigned struct_cdrom_multisession_sz = sizeof(struct cdrom_multisession);
476   unsigned struct_cdrom_read_audio_sz = sizeof(struct cdrom_read_audio);
477   unsigned struct_cdrom_subchnl_sz = sizeof(struct cdrom_subchnl);
478   unsigned struct_cdrom_ti_sz = sizeof(struct cdrom_ti);
479   unsigned struct_cdrom_tocentry_sz = sizeof(struct cdrom_tocentry);
480   unsigned struct_cdrom_tochdr_sz = sizeof(struct cdrom_tochdr);
481   unsigned struct_cdrom_volctrl_sz = sizeof(struct cdrom_volctrl);
482   unsigned struct_ff_effect_sz = sizeof(struct ff_effect);
483   unsigned struct_floppy_drive_params_sz = sizeof(struct floppy_drive_params);
484   unsigned struct_floppy_drive_struct_sz = sizeof(struct floppy_drive_struct);
485   unsigned struct_floppy_fdc_state_sz = sizeof(struct floppy_fdc_state);
486   unsigned struct_floppy_max_errors_sz = sizeof(struct floppy_max_errors);
487   unsigned struct_floppy_raw_cmd_sz = sizeof(struct floppy_raw_cmd);
488   unsigned struct_floppy_struct_sz = sizeof(struct floppy_struct);
489   unsigned struct_floppy_write_errors_sz = sizeof(struct floppy_write_errors);
490   unsigned struct_format_descr_sz = sizeof(struct format_descr);
491   unsigned struct_hd_driveid_sz = sizeof(struct hd_driveid);
492   unsigned struct_hd_geometry_sz = sizeof(struct hd_geometry);
493   unsigned struct_input_absinfo_sz = sizeof(struct input_absinfo);
494   unsigned struct_input_id_sz = sizeof(struct input_id);
495   unsigned struct_mtpos_sz = sizeof(struct mtpos);
496   unsigned struct_rtentry_sz = sizeof(struct rtentry);
497   unsigned struct_vt_consize_sz = sizeof(struct vt_consize);
498   unsigned struct_vt_sizes_sz = sizeof(struct vt_sizes);
499   unsigned struct_vt_stat_sz = sizeof(struct vt_stat);
500 #endif // SANITIZER_LINUX
501 
502 #if SANITIZER_LINUX
503 #if SOUND_VERSION >= 0x040000
504   unsigned struct_copr_buffer_sz = 0;
505   unsigned struct_copr_debug_buf_sz = 0;
506   unsigned struct_copr_msg_sz = 0;
507 #else
508   unsigned struct_copr_buffer_sz = sizeof(struct copr_buffer);
509   unsigned struct_copr_debug_buf_sz = sizeof(struct copr_debug_buf);
510   unsigned struct_copr_msg_sz = sizeof(struct copr_msg);
511 #endif
512   unsigned struct_midi_info_sz = sizeof(struct midi_info);
513   unsigned struct_mtget_sz = sizeof(struct mtget);
514   unsigned struct_mtop_sz = sizeof(struct mtop);
515   unsigned struct_sbi_instrument_sz = sizeof(struct sbi_instrument);
516   unsigned struct_seq_event_rec_sz = sizeof(struct seq_event_rec);
517   unsigned struct_synth_info_sz = sizeof(struct synth_info);
518   unsigned struct_vt_mode_sz = sizeof(struct vt_mode);
519 #endif // SANITIZER_LINUX
520 
521 #if SANITIZER_GLIBC
522   unsigned struct_ax25_parms_struct_sz = sizeof(struct ax25_parms_struct);
523 #if EV_VERSION > (0x010000)
524   unsigned struct_input_keymap_entry_sz = sizeof(struct input_keymap_entry);
525 #else
526   unsigned struct_input_keymap_entry_sz = 0;
527 #endif
528   unsigned struct_ipx_config_data_sz = sizeof(struct ipx_config_data);
529   unsigned struct_kbdiacrs_sz = sizeof(struct kbdiacrs);
530   unsigned struct_kbentry_sz = sizeof(struct kbentry);
531   unsigned struct_kbkeycode_sz = sizeof(struct kbkeycode);
532   unsigned struct_kbsentry_sz = sizeof(struct kbsentry);
533   unsigned struct_mtconfiginfo_sz = sizeof(struct mtconfiginfo);
534   unsigned struct_nr_parms_struct_sz = sizeof(struct nr_parms_struct);
535   unsigned struct_scc_modem_sz = sizeof(struct scc_modem);
536   unsigned struct_scc_stat_sz = sizeof(struct scc_stat);
537   unsigned struct_serial_multiport_struct_sz
538       = sizeof(struct serial_multiport_struct);
539   unsigned struct_serial_struct_sz = sizeof(struct serial_struct);
540   unsigned struct_sockaddr_ax25_sz = sizeof(struct sockaddr_ax25);
541   unsigned struct_unimapdesc_sz = sizeof(struct unimapdesc);
542   unsigned struct_unimapinit_sz = sizeof(struct unimapinit);
543 
544   unsigned struct_audio_buf_info_sz = sizeof(struct audio_buf_info);
545   unsigned struct_ppp_stats_sz = sizeof(struct ppp_stats);
546   unsigned struct_sock_fprog_sz = sizeof(struct sock_fprog);
547 #  endif  // SANITIZER_GLIBC
548 
549 #  if !SANITIZER_ANDROID && !SANITIZER_APPLE && !SANITIZER_HAIKU
550   unsigned struct_sioc_sg_req_sz = sizeof(struct sioc_sg_req);
551   unsigned struct_sioc_vif_req_sz = sizeof(struct sioc_vif_req);
552 #endif
553 
554   unsigned fpos_t_sz = sizeof(fpos_t);
555 
556   const unsigned long __sanitizer_bufsiz = BUFSIZ;
557 
558   const unsigned IOCTL_NOT_PRESENT = 0;
559 
560   unsigned IOCTL_FIONBIO = FIONBIO;
561 #if !SANITIZER_HAIKU
562   unsigned IOCTL_FIOASYNC = FIOASYNC;
563   unsigned IOCTL_FIOCLEX = FIOCLEX;
564   unsigned IOCTL_FIOGETOWN = FIOGETOWN;
565   unsigned IOCTL_FIONCLEX = FIONCLEX;
566   unsigned IOCTL_FIOSETOWN = FIOSETOWN;
567 #endif
568   unsigned IOCTL_SIOCADDMULTI = SIOCADDMULTI;
569   unsigned IOCTL_SIOCATMARK = SIOCATMARK;
570   unsigned IOCTL_SIOCDELMULTI = SIOCDELMULTI;
571   unsigned IOCTL_SIOCGIFADDR = SIOCGIFADDR;
572   unsigned IOCTL_SIOCGIFBRDADDR = SIOCGIFBRDADDR;
573   unsigned IOCTL_SIOCGIFCONF = SIOCGIFCONF;
574   unsigned IOCTL_SIOCGIFDSTADDR = SIOCGIFDSTADDR;
575   unsigned IOCTL_SIOCGIFFLAGS = SIOCGIFFLAGS;
576   unsigned IOCTL_SIOCGIFMETRIC = SIOCGIFMETRIC;
577   unsigned IOCTL_SIOCGIFMTU = SIOCGIFMTU;
578   unsigned IOCTL_SIOCGIFNETMASK = SIOCGIFNETMASK;
579   unsigned IOCTL_SIOCGPGRP = SIOCGPGRP;
580   unsigned IOCTL_SIOCSIFADDR = SIOCSIFADDR;
581   unsigned IOCTL_SIOCSIFBRDADDR = SIOCSIFBRDADDR;
582   unsigned IOCTL_SIOCSIFDSTADDR = SIOCSIFDSTADDR;
583   unsigned IOCTL_SIOCSIFFLAGS = SIOCSIFFLAGS;
584   unsigned IOCTL_SIOCSIFMETRIC = SIOCSIFMETRIC;
585   unsigned IOCTL_SIOCSIFMTU = SIOCSIFMTU;
586   unsigned IOCTL_SIOCSIFNETMASK = SIOCSIFNETMASK;
587   unsigned IOCTL_SIOCSPGRP = SIOCSPGRP;
588 
589 #if !SANITIZER_HAIKU
590   unsigned IOCTL_TIOCCONS = TIOCCONS;
591   unsigned IOCTL_TIOCGETD = TIOCGETD;
592   unsigned IOCTL_TIOCNOTTY = TIOCNOTTY;
593   unsigned IOCTL_TIOCPKT = TIOCPKT;
594   unsigned IOCTL_TIOCSETD = TIOCSETD;
595   unsigned IOCTL_TIOCSTI = TIOCSTI;
596 #endif
597 
598   unsigned IOCTL_TIOCEXCL = TIOCEXCL;
599   unsigned IOCTL_TIOCGPGRP = TIOCGPGRP;
600   unsigned IOCTL_TIOCGWINSZ = TIOCGWINSZ;
601   unsigned IOCTL_TIOCMBIC = TIOCMBIC;
602   unsigned IOCTL_TIOCMBIS = TIOCMBIS;
603   unsigned IOCTL_TIOCMGET = TIOCMGET;
604   unsigned IOCTL_TIOCMSET = TIOCMSET;
605   unsigned IOCTL_TIOCNXCL = TIOCNXCL;
606   unsigned IOCTL_TIOCOUTQ = TIOCOUTQ;
607   unsigned IOCTL_TIOCSCTTY = TIOCSCTTY;
608   unsigned IOCTL_TIOCSPGRP = TIOCSPGRP;
609   unsigned IOCTL_TIOCSWINSZ = TIOCSWINSZ;
610 #if SANITIZER_LINUX && !SANITIZER_ANDROID
611   unsigned IOCTL_SIOCGETSGCNT = SIOCGETSGCNT;
612   unsigned IOCTL_SIOCGETVIFCNT = SIOCGETVIFCNT;
613 #endif
614 
615 #if SANITIZER_LINUX
616   unsigned IOCTL_EVIOCGABS = EVIOCGABS(0);
617   unsigned IOCTL_EVIOCGBIT = EVIOCGBIT(0, 0);
618   unsigned IOCTL_EVIOCGEFFECTS = EVIOCGEFFECTS;
619   unsigned IOCTL_EVIOCGID = EVIOCGID;
620   unsigned IOCTL_EVIOCGKEY = EVIOCGKEY(0);
621   unsigned IOCTL_EVIOCGKEYCODE = EVIOCGKEYCODE;
622   unsigned IOCTL_EVIOCGLED = EVIOCGLED(0);
623   unsigned IOCTL_EVIOCGNAME = EVIOCGNAME(0);
624   unsigned IOCTL_EVIOCGPHYS = EVIOCGPHYS(0);
625   unsigned IOCTL_EVIOCGRAB = EVIOCGRAB;
626   unsigned IOCTL_EVIOCGREP = EVIOCGREP;
627   unsigned IOCTL_EVIOCGSND = EVIOCGSND(0);
628   unsigned IOCTL_EVIOCGSW = EVIOCGSW(0);
629   unsigned IOCTL_EVIOCGUNIQ = EVIOCGUNIQ(0);
630   unsigned IOCTL_EVIOCGVERSION = EVIOCGVERSION;
631   unsigned IOCTL_EVIOCRMFF = EVIOCRMFF;
632   unsigned IOCTL_EVIOCSABS = EVIOCSABS(0);
633   unsigned IOCTL_EVIOCSFF = EVIOCSFF;
634   unsigned IOCTL_EVIOCSKEYCODE = EVIOCSKEYCODE;
635   unsigned IOCTL_EVIOCSREP = EVIOCSREP;
636   unsigned IOCTL_BLKFLSBUF = BLKFLSBUF;
637   unsigned IOCTL_BLKGETSIZE = BLKGETSIZE;
638   unsigned IOCTL_BLKRAGET = BLKRAGET;
639   unsigned IOCTL_BLKRASET = BLKRASET;
640   unsigned IOCTL_BLKROGET = BLKROGET;
641   unsigned IOCTL_BLKROSET = BLKROSET;
642   unsigned IOCTL_BLKRRPART = BLKRRPART;
643   unsigned IOCTL_BLKFRASET = BLKFRASET;
644   unsigned IOCTL_BLKFRAGET = BLKFRAGET;
645   unsigned IOCTL_BLKSECTSET = BLKSECTSET;
646   unsigned IOCTL_BLKSECTGET = BLKSECTGET;
647   unsigned IOCTL_BLKSSZGET = BLKSSZGET;
648   unsigned IOCTL_BLKBSZGET = BLKBSZGET;
649   unsigned IOCTL_BLKBSZSET = BLKBSZSET;
650   unsigned IOCTL_BLKGETSIZE64 = BLKGETSIZE64;
651   unsigned IOCTL_CDROMAUDIOBUFSIZ = CDROMAUDIOBUFSIZ;
652   unsigned IOCTL_CDROMEJECT = CDROMEJECT;
653   unsigned IOCTL_CDROMEJECT_SW = CDROMEJECT_SW;
654   unsigned IOCTL_CDROMMULTISESSION = CDROMMULTISESSION;
655   unsigned IOCTL_CDROMPAUSE = CDROMPAUSE;
656   unsigned IOCTL_CDROMPLAYMSF = CDROMPLAYMSF;
657   unsigned IOCTL_CDROMPLAYTRKIND = CDROMPLAYTRKIND;
658   unsigned IOCTL_CDROMREADAUDIO = CDROMREADAUDIO;
659   unsigned IOCTL_CDROMREADCOOKED = CDROMREADCOOKED;
660   unsigned IOCTL_CDROMREADMODE1 = CDROMREADMODE1;
661   unsigned IOCTL_CDROMREADMODE2 = CDROMREADMODE2;
662   unsigned IOCTL_CDROMREADRAW = CDROMREADRAW;
663   unsigned IOCTL_CDROMREADTOCENTRY = CDROMREADTOCENTRY;
664   unsigned IOCTL_CDROMREADTOCHDR = CDROMREADTOCHDR;
665   unsigned IOCTL_CDROMRESET = CDROMRESET;
666   unsigned IOCTL_CDROMRESUME = CDROMRESUME;
667   unsigned IOCTL_CDROMSEEK = CDROMSEEK;
668   unsigned IOCTL_CDROMSTART = CDROMSTART;
669   unsigned IOCTL_CDROMSTOP = CDROMSTOP;
670   unsigned IOCTL_CDROMSUBCHNL = CDROMSUBCHNL;
671   unsigned IOCTL_CDROMVOLCTRL = CDROMVOLCTRL;
672   unsigned IOCTL_CDROMVOLREAD = CDROMVOLREAD;
673   unsigned IOCTL_CDROM_GET_UPC = CDROM_GET_UPC;
674   unsigned IOCTL_FDCLRPRM = FDCLRPRM;
675   unsigned IOCTL_FDDEFPRM = FDDEFPRM;
676   unsigned IOCTL_FDFLUSH = FDFLUSH;
677   unsigned IOCTL_FDFMTBEG = FDFMTBEG;
678   unsigned IOCTL_FDFMTEND = FDFMTEND;
679   unsigned IOCTL_FDFMTTRK = FDFMTTRK;
680   unsigned IOCTL_FDGETDRVPRM = FDGETDRVPRM;
681   unsigned IOCTL_FDGETDRVSTAT = FDGETDRVSTAT;
682   unsigned IOCTL_FDGETDRVTYP = FDGETDRVTYP;
683   unsigned IOCTL_FDGETFDCSTAT = FDGETFDCSTAT;
684   unsigned IOCTL_FDGETMAXERRS = FDGETMAXERRS;
685   unsigned IOCTL_FDGETPRM = FDGETPRM;
686   unsigned IOCTL_FDMSGOFF = FDMSGOFF;
687   unsigned IOCTL_FDMSGON = FDMSGON;
688   unsigned IOCTL_FDPOLLDRVSTAT = FDPOLLDRVSTAT;
689   unsigned IOCTL_FDRAWCMD = FDRAWCMD;
690   unsigned IOCTL_FDRESET = FDRESET;
691   unsigned IOCTL_FDSETDRVPRM = FDSETDRVPRM;
692   unsigned IOCTL_FDSETEMSGTRESH = FDSETEMSGTRESH;
693   unsigned IOCTL_FDSETMAXERRS = FDSETMAXERRS;
694   unsigned IOCTL_FDSETPRM = FDSETPRM;
695   unsigned IOCTL_FDTWADDLE = FDTWADDLE;
696   unsigned IOCTL_FDWERRORCLR = FDWERRORCLR;
697   unsigned IOCTL_FDWERRORGET = FDWERRORGET;
698   unsigned IOCTL_HDIO_DRIVE_CMD = HDIO_DRIVE_CMD;
699   unsigned IOCTL_HDIO_GETGEO = HDIO_GETGEO;
700   unsigned IOCTL_HDIO_GET_32BIT = HDIO_GET_32BIT;
701   unsigned IOCTL_HDIO_GET_DMA = HDIO_GET_DMA;
702   unsigned IOCTL_HDIO_GET_IDENTITY = HDIO_GET_IDENTITY;
703   unsigned IOCTL_HDIO_GET_KEEPSETTINGS = HDIO_GET_KEEPSETTINGS;
704   unsigned IOCTL_HDIO_GET_MULTCOUNT = HDIO_GET_MULTCOUNT;
705   unsigned IOCTL_HDIO_GET_NOWERR = HDIO_GET_NOWERR;
706   unsigned IOCTL_HDIO_GET_UNMASKINTR = HDIO_GET_UNMASKINTR;
707   unsigned IOCTL_HDIO_SET_32BIT = HDIO_SET_32BIT;
708   unsigned IOCTL_HDIO_SET_DMA = HDIO_SET_DMA;
709   unsigned IOCTL_HDIO_SET_KEEPSETTINGS = HDIO_SET_KEEPSETTINGS;
710   unsigned IOCTL_HDIO_SET_MULTCOUNT = HDIO_SET_MULTCOUNT;
711   unsigned IOCTL_HDIO_SET_NOWERR = HDIO_SET_NOWERR;
712   unsigned IOCTL_HDIO_SET_UNMASKINTR = HDIO_SET_UNMASKINTR;
713   unsigned IOCTL_MTIOCPOS = MTIOCPOS;
714   unsigned IOCTL_PPPIOCGASYNCMAP = PPPIOCGASYNCMAP;
715   unsigned IOCTL_PPPIOCGDEBUG = PPPIOCGDEBUG;
716   unsigned IOCTL_PPPIOCGFLAGS = PPPIOCGFLAGS;
717   unsigned IOCTL_PPPIOCGUNIT = PPPIOCGUNIT;
718   unsigned IOCTL_PPPIOCGXASYNCMAP = PPPIOCGXASYNCMAP;
719   unsigned IOCTL_PPPIOCSASYNCMAP = PPPIOCSASYNCMAP;
720   unsigned IOCTL_PPPIOCSDEBUG = PPPIOCSDEBUG;
721   unsigned IOCTL_PPPIOCSFLAGS = PPPIOCSFLAGS;
722   unsigned IOCTL_PPPIOCSMAXCID = PPPIOCSMAXCID;
723   unsigned IOCTL_PPPIOCSMRU = PPPIOCSMRU;
724   unsigned IOCTL_PPPIOCSXASYNCMAP = PPPIOCSXASYNCMAP;
725   unsigned IOCTL_SIOCADDRT = SIOCADDRT;
726   unsigned IOCTL_SIOCDARP = SIOCDARP;
727   unsigned IOCTL_SIOCDELRT = SIOCDELRT;
728   unsigned IOCTL_SIOCDRARP = SIOCDRARP;
729   unsigned IOCTL_SIOCGARP = SIOCGARP;
730   unsigned IOCTL_SIOCGIFENCAP = SIOCGIFENCAP;
731   unsigned IOCTL_SIOCGIFHWADDR = SIOCGIFHWADDR;
732   unsigned IOCTL_SIOCGIFMAP = SIOCGIFMAP;
733   unsigned IOCTL_SIOCGIFMEM = SIOCGIFMEM;
734   unsigned IOCTL_SIOCGIFNAME = SIOCGIFNAME;
735   unsigned IOCTL_SIOCGIFSLAVE = SIOCGIFSLAVE;
736   unsigned IOCTL_SIOCGRARP = SIOCGRARP;
737   unsigned IOCTL_SIOCGSTAMP = SIOCGSTAMP;
738   unsigned IOCTL_SIOCSARP = SIOCSARP;
739   unsigned IOCTL_SIOCSIFENCAP = SIOCSIFENCAP;
740   unsigned IOCTL_SIOCSIFHWADDR = SIOCSIFHWADDR;
741   unsigned IOCTL_SIOCSIFLINK = SIOCSIFLINK;
742   unsigned IOCTL_SIOCSIFMAP = SIOCSIFMAP;
743   unsigned IOCTL_SIOCSIFMEM = SIOCSIFMEM;
744   unsigned IOCTL_SIOCSIFSLAVE = SIOCSIFSLAVE;
745   unsigned IOCTL_SIOCSRARP = SIOCSRARP;
746 # if SOUND_VERSION >= 0x040000
747   unsigned IOCTL_SNDCTL_COPR_HALT = IOCTL_NOT_PRESENT;
748   unsigned IOCTL_SNDCTL_COPR_LOAD = IOCTL_NOT_PRESENT;
749   unsigned IOCTL_SNDCTL_COPR_RCODE = IOCTL_NOT_PRESENT;
750   unsigned IOCTL_SNDCTL_COPR_RCVMSG = IOCTL_NOT_PRESENT;
751   unsigned IOCTL_SNDCTL_COPR_RDATA = IOCTL_NOT_PRESENT;
752   unsigned IOCTL_SNDCTL_COPR_RESET = IOCTL_NOT_PRESENT;
753   unsigned IOCTL_SNDCTL_COPR_RUN = IOCTL_NOT_PRESENT;
754   unsigned IOCTL_SNDCTL_COPR_SENDMSG = IOCTL_NOT_PRESENT;
755   unsigned IOCTL_SNDCTL_COPR_WCODE = IOCTL_NOT_PRESENT;
756   unsigned IOCTL_SNDCTL_COPR_WDATA = IOCTL_NOT_PRESENT;
757   unsigned IOCTL_SOUND_PCM_READ_BITS = IOCTL_NOT_PRESENT;
758   unsigned IOCTL_SOUND_PCM_READ_CHANNELS = IOCTL_NOT_PRESENT;
759   unsigned IOCTL_SOUND_PCM_READ_FILTER = IOCTL_NOT_PRESENT;
760   unsigned IOCTL_SOUND_PCM_READ_RATE = IOCTL_NOT_PRESENT;
761   unsigned IOCTL_SOUND_PCM_WRITE_CHANNELS = IOCTL_NOT_PRESENT;
762   unsigned IOCTL_SOUND_PCM_WRITE_FILTER = IOCTL_NOT_PRESENT;
763 # else  // SOUND_VERSION
764   unsigned IOCTL_SNDCTL_COPR_HALT = SNDCTL_COPR_HALT;
765   unsigned IOCTL_SNDCTL_COPR_LOAD = SNDCTL_COPR_LOAD;
766   unsigned IOCTL_SNDCTL_COPR_RCODE = SNDCTL_COPR_RCODE;
767   unsigned IOCTL_SNDCTL_COPR_RCVMSG = SNDCTL_COPR_RCVMSG;
768   unsigned IOCTL_SNDCTL_COPR_RDATA = SNDCTL_COPR_RDATA;
769   unsigned IOCTL_SNDCTL_COPR_RESET = SNDCTL_COPR_RESET;
770   unsigned IOCTL_SNDCTL_COPR_RUN = SNDCTL_COPR_RUN;
771   unsigned IOCTL_SNDCTL_COPR_SENDMSG = SNDCTL_COPR_SENDMSG;
772   unsigned IOCTL_SNDCTL_COPR_WCODE = SNDCTL_COPR_WCODE;
773   unsigned IOCTL_SNDCTL_COPR_WDATA = SNDCTL_COPR_WDATA;
774   unsigned IOCTL_SOUND_PCM_READ_BITS = SOUND_PCM_READ_BITS;
775   unsigned IOCTL_SOUND_PCM_READ_CHANNELS = SOUND_PCM_READ_CHANNELS;
776   unsigned IOCTL_SOUND_PCM_READ_FILTER = SOUND_PCM_READ_FILTER;
777   unsigned IOCTL_SOUND_PCM_READ_RATE = SOUND_PCM_READ_RATE;
778   unsigned IOCTL_SOUND_PCM_WRITE_CHANNELS = SOUND_PCM_WRITE_CHANNELS;
779   unsigned IOCTL_SOUND_PCM_WRITE_FILTER = SOUND_PCM_WRITE_FILTER;
780 #endif // SOUND_VERSION
781   unsigned IOCTL_TCFLSH = TCFLSH;
782 #    if SANITIZER_TERMIOS_IOCTL_CONSTANTS
783   unsigned IOCTL_TCGETS = TCGETS;
784 #    endif
785   unsigned IOCTL_TCSBRK = TCSBRK;
786   unsigned IOCTL_TCSBRKP = TCSBRKP;
787 #    if SANITIZER_TERMIOS_IOCTL_CONSTANTS
788   unsigned IOCTL_TCSETS = TCSETS;
789   unsigned IOCTL_TCSETSF = TCSETSF;
790   unsigned IOCTL_TCSETSW = TCSETSW;
791 #    endif
792   unsigned IOCTL_TCXONC = TCXONC;
793   unsigned IOCTL_TIOCGLCKTRMIOS = TIOCGLCKTRMIOS;
794   unsigned IOCTL_TIOCGSOFTCAR = TIOCGSOFTCAR;
795   unsigned IOCTL_TIOCINQ = TIOCINQ;
796   unsigned IOCTL_TIOCLINUX = TIOCLINUX;
797   unsigned IOCTL_TIOCSERCONFIG = TIOCSERCONFIG;
798   unsigned IOCTL_TIOCSERGETLSR = TIOCSERGETLSR;
799   unsigned IOCTL_TIOCSERGWILD = TIOCSERGWILD;
800   unsigned IOCTL_TIOCSERSWILD = TIOCSERSWILD;
801   unsigned IOCTL_TIOCSLCKTRMIOS = TIOCSLCKTRMIOS;
802   unsigned IOCTL_TIOCSSOFTCAR = TIOCSSOFTCAR;
803   unsigned IOCTL_VT_DISALLOCATE = VT_DISALLOCATE;
804   unsigned IOCTL_VT_GETSTATE = VT_GETSTATE;
805   unsigned IOCTL_VT_RESIZE = VT_RESIZE;
806   unsigned IOCTL_VT_RESIZEX = VT_RESIZEX;
807   unsigned IOCTL_VT_SENDSIG = VT_SENDSIG;
808   unsigned IOCTL_MTIOCGET = MTIOCGET;
809   unsigned IOCTL_MTIOCTOP = MTIOCTOP;
810   unsigned IOCTL_SNDCTL_DSP_GETBLKSIZE = SNDCTL_DSP_GETBLKSIZE;
811   unsigned IOCTL_SNDCTL_DSP_GETFMTS = SNDCTL_DSP_GETFMTS;
812   unsigned IOCTL_SNDCTL_DSP_NONBLOCK = SNDCTL_DSP_NONBLOCK;
813   unsigned IOCTL_SNDCTL_DSP_POST = SNDCTL_DSP_POST;
814   unsigned IOCTL_SNDCTL_DSP_RESET = SNDCTL_DSP_RESET;
815   unsigned IOCTL_SNDCTL_DSP_SETFMT = SNDCTL_DSP_SETFMT;
816   unsigned IOCTL_SNDCTL_DSP_SETFRAGMENT = SNDCTL_DSP_SETFRAGMENT;
817   unsigned IOCTL_SNDCTL_DSP_SPEED = SNDCTL_DSP_SPEED;
818   unsigned IOCTL_SNDCTL_DSP_STEREO = SNDCTL_DSP_STEREO;
819   unsigned IOCTL_SNDCTL_DSP_SUBDIVIDE = SNDCTL_DSP_SUBDIVIDE;
820   unsigned IOCTL_SNDCTL_DSP_SYNC = SNDCTL_DSP_SYNC;
821   unsigned IOCTL_SNDCTL_FM_4OP_ENABLE = SNDCTL_FM_4OP_ENABLE;
822   unsigned IOCTL_SNDCTL_FM_LOAD_INSTR = SNDCTL_FM_LOAD_INSTR;
823   unsigned IOCTL_SNDCTL_MIDI_INFO = SNDCTL_MIDI_INFO;
824   unsigned IOCTL_SNDCTL_MIDI_PRETIME = SNDCTL_MIDI_PRETIME;
825   unsigned IOCTL_SNDCTL_SEQ_CTRLRATE = SNDCTL_SEQ_CTRLRATE;
826   unsigned IOCTL_SNDCTL_SEQ_GETINCOUNT = SNDCTL_SEQ_GETINCOUNT;
827   unsigned IOCTL_SNDCTL_SEQ_GETOUTCOUNT = SNDCTL_SEQ_GETOUTCOUNT;
828   unsigned IOCTL_SNDCTL_SEQ_NRMIDIS = SNDCTL_SEQ_NRMIDIS;
829   unsigned IOCTL_SNDCTL_SEQ_NRSYNTHS = SNDCTL_SEQ_NRSYNTHS;
830   unsigned IOCTL_SNDCTL_SEQ_OUTOFBAND = SNDCTL_SEQ_OUTOFBAND;
831   unsigned IOCTL_SNDCTL_SEQ_PANIC = SNDCTL_SEQ_PANIC;
832   unsigned IOCTL_SNDCTL_SEQ_PERCMODE = SNDCTL_SEQ_PERCMODE;
833   unsigned IOCTL_SNDCTL_SEQ_RESET = SNDCTL_SEQ_RESET;
834   unsigned IOCTL_SNDCTL_SEQ_RESETSAMPLES = SNDCTL_SEQ_RESETSAMPLES;
835   unsigned IOCTL_SNDCTL_SEQ_SYNC = SNDCTL_SEQ_SYNC;
836   unsigned IOCTL_SNDCTL_SEQ_TESTMIDI = SNDCTL_SEQ_TESTMIDI;
837   unsigned IOCTL_SNDCTL_SEQ_THRESHOLD = SNDCTL_SEQ_THRESHOLD;
838   unsigned IOCTL_SNDCTL_SYNTH_INFO = SNDCTL_SYNTH_INFO;
839   unsigned IOCTL_SNDCTL_SYNTH_MEMAVL = SNDCTL_SYNTH_MEMAVL;
840   unsigned IOCTL_SNDCTL_TMR_CONTINUE = SNDCTL_TMR_CONTINUE;
841   unsigned IOCTL_SNDCTL_TMR_METRONOME = SNDCTL_TMR_METRONOME;
842   unsigned IOCTL_SNDCTL_TMR_SELECT = SNDCTL_TMR_SELECT;
843   unsigned IOCTL_SNDCTL_TMR_SOURCE = SNDCTL_TMR_SOURCE;
844   unsigned IOCTL_SNDCTL_TMR_START = SNDCTL_TMR_START;
845   unsigned IOCTL_SNDCTL_TMR_STOP = SNDCTL_TMR_STOP;
846   unsigned IOCTL_SNDCTL_TMR_TEMPO = SNDCTL_TMR_TEMPO;
847   unsigned IOCTL_SNDCTL_TMR_TIMEBASE = SNDCTL_TMR_TIMEBASE;
848   unsigned IOCTL_SOUND_MIXER_READ_ALTPCM = SOUND_MIXER_READ_ALTPCM;
849   unsigned IOCTL_SOUND_MIXER_READ_BASS = SOUND_MIXER_READ_BASS;
850   unsigned IOCTL_SOUND_MIXER_READ_CAPS = SOUND_MIXER_READ_CAPS;
851   unsigned IOCTL_SOUND_MIXER_READ_CD = SOUND_MIXER_READ_CD;
852   unsigned IOCTL_SOUND_MIXER_READ_DEVMASK = SOUND_MIXER_READ_DEVMASK;
853   unsigned IOCTL_SOUND_MIXER_READ_ENHANCE = SOUND_MIXER_READ_ENHANCE;
854   unsigned IOCTL_SOUND_MIXER_READ_IGAIN = SOUND_MIXER_READ_IGAIN;
855   unsigned IOCTL_SOUND_MIXER_READ_IMIX = SOUND_MIXER_READ_IMIX;
856   unsigned IOCTL_SOUND_MIXER_READ_LINE = SOUND_MIXER_READ_LINE;
857   unsigned IOCTL_SOUND_MIXER_READ_LINE1 = SOUND_MIXER_READ_LINE1;
858   unsigned IOCTL_SOUND_MIXER_READ_LINE2 = SOUND_MIXER_READ_LINE2;
859   unsigned IOCTL_SOUND_MIXER_READ_LINE3 = SOUND_MIXER_READ_LINE3;
860   unsigned IOCTL_SOUND_MIXER_READ_LOUD = SOUND_MIXER_READ_LOUD;
861   unsigned IOCTL_SOUND_MIXER_READ_MIC = SOUND_MIXER_READ_MIC;
862   unsigned IOCTL_SOUND_MIXER_READ_MUTE = SOUND_MIXER_READ_MUTE;
863   unsigned IOCTL_SOUND_MIXER_READ_OGAIN = SOUND_MIXER_READ_OGAIN;
864   unsigned IOCTL_SOUND_MIXER_READ_PCM = SOUND_MIXER_READ_PCM;
865   unsigned IOCTL_SOUND_MIXER_READ_RECLEV = SOUND_MIXER_READ_RECLEV;
866   unsigned IOCTL_SOUND_MIXER_READ_RECMASK = SOUND_MIXER_READ_RECMASK;
867   unsigned IOCTL_SOUND_MIXER_READ_RECSRC = SOUND_MIXER_READ_RECSRC;
868   unsigned IOCTL_SOUND_MIXER_READ_SPEAKER = SOUND_MIXER_READ_SPEAKER;
869   unsigned IOCTL_SOUND_MIXER_READ_STEREODEVS = SOUND_MIXER_READ_STEREODEVS;
870   unsigned IOCTL_SOUND_MIXER_READ_SYNTH = SOUND_MIXER_READ_SYNTH;
871   unsigned IOCTL_SOUND_MIXER_READ_TREBLE = SOUND_MIXER_READ_TREBLE;
872   unsigned IOCTL_SOUND_MIXER_READ_VOLUME = SOUND_MIXER_READ_VOLUME;
873   unsigned IOCTL_SOUND_MIXER_WRITE_ALTPCM = SOUND_MIXER_WRITE_ALTPCM;
874   unsigned IOCTL_SOUND_MIXER_WRITE_BASS = SOUND_MIXER_WRITE_BASS;
875   unsigned IOCTL_SOUND_MIXER_WRITE_CD = SOUND_MIXER_WRITE_CD;
876   unsigned IOCTL_SOUND_MIXER_WRITE_ENHANCE = SOUND_MIXER_WRITE_ENHANCE;
877   unsigned IOCTL_SOUND_MIXER_WRITE_IGAIN = SOUND_MIXER_WRITE_IGAIN;
878   unsigned IOCTL_SOUND_MIXER_WRITE_IMIX = SOUND_MIXER_WRITE_IMIX;
879   unsigned IOCTL_SOUND_MIXER_WRITE_LINE = SOUND_MIXER_WRITE_LINE;
880   unsigned IOCTL_SOUND_MIXER_WRITE_LINE1 = SOUND_MIXER_WRITE_LINE1;
881   unsigned IOCTL_SOUND_MIXER_WRITE_LINE2 = SOUND_MIXER_WRITE_LINE2;
882   unsigned IOCTL_SOUND_MIXER_WRITE_LINE3 = SOUND_MIXER_WRITE_LINE3;
883   unsigned IOCTL_SOUND_MIXER_WRITE_LOUD = SOUND_MIXER_WRITE_LOUD;
884   unsigned IOCTL_SOUND_MIXER_WRITE_MIC = SOUND_MIXER_WRITE_MIC;
885   unsigned IOCTL_SOUND_MIXER_WRITE_MUTE = SOUND_MIXER_WRITE_MUTE;
886   unsigned IOCTL_SOUND_MIXER_WRITE_OGAIN = SOUND_MIXER_WRITE_OGAIN;
887   unsigned IOCTL_SOUND_MIXER_WRITE_PCM = SOUND_MIXER_WRITE_PCM;
888   unsigned IOCTL_SOUND_MIXER_WRITE_RECLEV = SOUND_MIXER_WRITE_RECLEV;
889   unsigned IOCTL_SOUND_MIXER_WRITE_RECSRC = SOUND_MIXER_WRITE_RECSRC;
890   unsigned IOCTL_SOUND_MIXER_WRITE_SPEAKER = SOUND_MIXER_WRITE_SPEAKER;
891   unsigned IOCTL_SOUND_MIXER_WRITE_SYNTH = SOUND_MIXER_WRITE_SYNTH;
892   unsigned IOCTL_SOUND_MIXER_WRITE_TREBLE = SOUND_MIXER_WRITE_TREBLE;
893   unsigned IOCTL_SOUND_MIXER_WRITE_VOLUME = SOUND_MIXER_WRITE_VOLUME;
894   unsigned IOCTL_VT_ACTIVATE = VT_ACTIVATE;
895   unsigned IOCTL_VT_GETMODE = VT_GETMODE;
896   unsigned IOCTL_VT_OPENQRY = VT_OPENQRY;
897   unsigned IOCTL_VT_RELDISP = VT_RELDISP;
898   unsigned IOCTL_VT_SETMODE = VT_SETMODE;
899   unsigned IOCTL_VT_WAITACTIVE = VT_WAITACTIVE;
900 #endif // SANITIZER_LINUX
901 
902 #if SANITIZER_LINUX && !SANITIZER_ANDROID
903   unsigned IOCTL_EQL_EMANCIPATE = EQL_EMANCIPATE;
904   unsigned IOCTL_EQL_ENSLAVE = EQL_ENSLAVE;
905   unsigned IOCTL_EQL_GETMASTRCFG = EQL_GETMASTRCFG;
906   unsigned IOCTL_EQL_GETSLAVECFG = EQL_GETSLAVECFG;
907   unsigned IOCTL_EQL_SETMASTRCFG = EQL_SETMASTRCFG;
908   unsigned IOCTL_EQL_SETSLAVECFG = EQL_SETSLAVECFG;
909 #if EV_VERSION > (0x010000)
910   unsigned IOCTL_EVIOCGKEYCODE_V2 = EVIOCGKEYCODE_V2;
911   unsigned IOCTL_EVIOCGPROP = EVIOCGPROP(0);
912   unsigned IOCTL_EVIOCSKEYCODE_V2 = EVIOCSKEYCODE_V2;
913 #else
914   unsigned IOCTL_EVIOCGKEYCODE_V2 = IOCTL_NOT_PRESENT;
915   unsigned IOCTL_EVIOCGPROP = IOCTL_NOT_PRESENT;
916   unsigned IOCTL_EVIOCSKEYCODE_V2 = IOCTL_NOT_PRESENT;
917 #endif
918   unsigned IOCTL_FS_IOC_GETFLAGS = _IOR('f', 1, long);
919   unsigned IOCTL_FS_IOC_GETVERSION = _IOR('v', 1, long);
920   unsigned IOCTL_FS_IOC_SETFLAGS = _IOW('f', 2, long);
921   unsigned IOCTL_FS_IOC_SETVERSION = _IOW('v', 2, long);
922   unsigned IOCTL_GIO_CMAP = GIO_CMAP;
923   unsigned IOCTL_GIO_FONT = GIO_FONT;
924   unsigned IOCTL_GIO_UNIMAP = GIO_UNIMAP;
925   unsigned IOCTL_GIO_UNISCRNMAP = GIO_UNISCRNMAP;
926   unsigned IOCTL_KDADDIO = KDADDIO;
927   unsigned IOCTL_KDDELIO = KDDELIO;
928   unsigned IOCTL_KDGETKEYCODE = KDGETKEYCODE;
929   unsigned IOCTL_KDGKBDIACR = KDGKBDIACR;
930   unsigned IOCTL_KDGKBENT = KDGKBENT;
931   unsigned IOCTL_KDGKBLED = KDGKBLED;
932   unsigned IOCTL_KDGKBMETA = KDGKBMETA;
933   unsigned IOCTL_KDGKBSENT = KDGKBSENT;
934   unsigned IOCTL_KDMAPDISP = KDMAPDISP;
935   unsigned IOCTL_KDSETKEYCODE = KDSETKEYCODE;
936   unsigned IOCTL_KDSIGACCEPT = KDSIGACCEPT;
937   unsigned IOCTL_KDSKBDIACR = KDSKBDIACR;
938   unsigned IOCTL_KDSKBENT = KDSKBENT;
939   unsigned IOCTL_KDSKBLED = KDSKBLED;
940   unsigned IOCTL_KDSKBMETA = KDSKBMETA;
941   unsigned IOCTL_KDSKBSENT = KDSKBSENT;
942   unsigned IOCTL_KDUNMAPDISP = KDUNMAPDISP;
943   unsigned IOCTL_LPABORT = LPABORT;
944   unsigned IOCTL_LPABORTOPEN = LPABORTOPEN;
945   unsigned IOCTL_LPCAREFUL = LPCAREFUL;
946   unsigned IOCTL_LPCHAR = LPCHAR;
947   unsigned IOCTL_LPGETIRQ = LPGETIRQ;
948   unsigned IOCTL_LPGETSTATUS = LPGETSTATUS;
949   unsigned IOCTL_LPRESET = LPRESET;
950   unsigned IOCTL_LPSETIRQ = LPSETIRQ;
951   unsigned IOCTL_LPTIME = LPTIME;
952   unsigned IOCTL_LPWAIT = LPWAIT;
953   unsigned IOCTL_MTIOCGETCONFIG = MTIOCGETCONFIG;
954   unsigned IOCTL_MTIOCSETCONFIG = MTIOCSETCONFIG;
955   unsigned IOCTL_PIO_CMAP = PIO_CMAP;
956   unsigned IOCTL_PIO_FONT = PIO_FONT;
957   unsigned IOCTL_PIO_UNIMAP = PIO_UNIMAP;
958   unsigned IOCTL_PIO_UNIMAPCLR = PIO_UNIMAPCLR;
959   unsigned IOCTL_PIO_UNISCRNMAP = PIO_UNISCRNMAP;
960 #if SANITIZER_GLIBC
961   unsigned IOCTL_SCSI_IOCTL_GET_IDLUN = SCSI_IOCTL_GET_IDLUN;
962   unsigned IOCTL_SCSI_IOCTL_PROBE_HOST = SCSI_IOCTL_PROBE_HOST;
963   unsigned IOCTL_SCSI_IOCTL_TAGGED_DISABLE = SCSI_IOCTL_TAGGED_DISABLE;
964   unsigned IOCTL_SCSI_IOCTL_TAGGED_ENABLE = SCSI_IOCTL_TAGGED_ENABLE;
965   unsigned IOCTL_SIOCAIPXITFCRT = SIOCAIPXITFCRT;
966   unsigned IOCTL_SIOCAIPXPRISLT = SIOCAIPXPRISLT;
967   unsigned IOCTL_SIOCAX25ADDUID = SIOCAX25ADDUID;
968   unsigned IOCTL_SIOCAX25DELUID = SIOCAX25DELUID;
969   unsigned IOCTL_SIOCAX25GETPARMS = SIOCAX25GETPARMS;
970   unsigned IOCTL_SIOCAX25GETUID = SIOCAX25GETUID;
971   unsigned IOCTL_SIOCAX25NOUID = SIOCAX25NOUID;
972   unsigned IOCTL_SIOCAX25SETPARMS = SIOCAX25SETPARMS;
973   unsigned IOCTL_SIOCDEVPLIP = SIOCDEVPLIP;
974   unsigned IOCTL_SIOCIPXCFGDATA = SIOCIPXCFGDATA;
975   unsigned IOCTL_SIOCNRDECOBS = SIOCNRDECOBS;
976   unsigned IOCTL_SIOCNRGETPARMS = SIOCNRGETPARMS;
977   unsigned IOCTL_SIOCNRRTCTL = SIOCNRRTCTL;
978   unsigned IOCTL_SIOCNRSETPARMS = SIOCNRSETPARMS;
979 #endif
980   unsigned IOCTL_TIOCGSERIAL = TIOCGSERIAL;
981   unsigned IOCTL_TIOCSERGETMULTI = TIOCSERGETMULTI;
982   unsigned IOCTL_TIOCSERSETMULTI = TIOCSERSETMULTI;
983   unsigned IOCTL_TIOCSSERIAL = TIOCSSERIAL;
984 #endif // SANITIZER_LINUX && !SANITIZER_ANDROID
985 
986 #if SANITIZER_LINUX && !SANITIZER_ANDROID
987   unsigned IOCTL_GIO_SCRNMAP = GIO_SCRNMAP;
988   unsigned IOCTL_KDDISABIO = KDDISABIO;
989   unsigned IOCTL_KDENABIO = KDENABIO;
990   unsigned IOCTL_KDGETLED = KDGETLED;
991   unsigned IOCTL_KDGETMODE = KDGETMODE;
992   unsigned IOCTL_KDGKBMODE = KDGKBMODE;
993   unsigned IOCTL_KDGKBTYPE = KDGKBTYPE;
994   unsigned IOCTL_KDMKTONE = KDMKTONE;
995   unsigned IOCTL_KDSETLED = KDSETLED;
996   unsigned IOCTL_KDSETMODE = KDSETMODE;
997   unsigned IOCTL_KDSKBMODE = KDSKBMODE;
998   unsigned IOCTL_KIOCSOUND = KIOCSOUND;
999   unsigned IOCTL_PIO_SCRNMAP = PIO_SCRNMAP;
1000   unsigned IOCTL_SNDCTL_DSP_GETISPACE = SNDCTL_DSP_GETISPACE;
1001   unsigned IOCTL_SNDCTL_DSP_GETOSPACE = SNDCTL_DSP_GETOSPACE;
1002 #endif // (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
1003 
1004   const int si_SEGV_MAPERR = SEGV_MAPERR;
1005   const int si_SEGV_ACCERR = SEGV_ACCERR;
1006 } // namespace __sanitizer
1007 
1008 using namespace __sanitizer;
1009 
1010 COMPILER_CHECK(sizeof(__sanitizer_pthread_attr_t) >= sizeof(pthread_attr_t));
1011 
1012 COMPILER_CHECK(sizeof(socklen_t) == sizeof(unsigned));
1013 CHECK_TYPE_SIZE(pthread_key_t);
1014 
1015 #if SANITIZER_LINUX
1016 // FIXME: We define those on Linux and Mac, but only check on Linux.
1017 COMPILER_CHECK(IOC_NRBITS == _IOC_NRBITS);
1018 COMPILER_CHECK(IOC_TYPEBITS == _IOC_TYPEBITS);
1019 COMPILER_CHECK(IOC_SIZEBITS == _IOC_SIZEBITS);
1020 COMPILER_CHECK(IOC_DIRBITS == _IOC_DIRBITS);
1021 COMPILER_CHECK(IOC_NRMASK == _IOC_NRMASK);
1022 COMPILER_CHECK(IOC_TYPEMASK == _IOC_TYPEMASK);
1023 COMPILER_CHECK(IOC_SIZEMASK == _IOC_SIZEMASK);
1024 COMPILER_CHECK(IOC_DIRMASK == _IOC_DIRMASK);
1025 COMPILER_CHECK(IOC_NRSHIFT == _IOC_NRSHIFT);
1026 COMPILER_CHECK(IOC_TYPESHIFT == _IOC_TYPESHIFT);
1027 COMPILER_CHECK(IOC_SIZESHIFT == _IOC_SIZESHIFT);
1028 COMPILER_CHECK(IOC_DIRSHIFT == _IOC_DIRSHIFT);
1029 COMPILER_CHECK(IOC_NONE == _IOC_NONE);
1030 COMPILER_CHECK(IOC_WRITE == _IOC_WRITE);
1031 COMPILER_CHECK(IOC_READ == _IOC_READ);
1032 COMPILER_CHECK(EVIOC_ABS_MAX == ABS_MAX);
1033 COMPILER_CHECK(EVIOC_EV_MAX == EV_MAX);
1034 COMPILER_CHECK(IOC_SIZE(0x12345678) == _IOC_SIZE(0x12345678));
1035 COMPILER_CHECK(IOC_DIR(0x12345678) == _IOC_DIR(0x12345678));
1036 COMPILER_CHECK(IOC_NR(0x12345678) == _IOC_NR(0x12345678));
1037 COMPILER_CHECK(IOC_TYPE(0x12345678) == _IOC_TYPE(0x12345678));
1038 #endif // SANITIZER_LINUX
1039 
1040 #if SANITIZER_LINUX || SANITIZER_FREEBSD
1041 // There are more undocumented fields in dl_phdr_info that we are not interested
1042 // in.
1043 COMPILER_CHECK(sizeof(__sanitizer_dl_phdr_info) <= sizeof(dl_phdr_info));
1044 CHECK_SIZE_AND_OFFSET(dl_phdr_info, dlpi_addr);
1045 CHECK_SIZE_AND_OFFSET(dl_phdr_info, dlpi_name);
1046 CHECK_SIZE_AND_OFFSET(dl_phdr_info, dlpi_phdr);
1047 CHECK_SIZE_AND_OFFSET(dl_phdr_info, dlpi_phnum);
1048 #endif // SANITIZER_LINUX || SANITIZER_FREEBSD
1049 
1050 #if SANITIZER_GLIBC || SANITIZER_FREEBSD
1051 CHECK_TYPE_SIZE(glob_t);
1052 CHECK_SIZE_AND_OFFSET(glob_t, gl_pathc);
1053 CHECK_SIZE_AND_OFFSET(glob_t, gl_pathv);
1054 CHECK_SIZE_AND_OFFSET(glob_t, gl_offs);
1055 CHECK_SIZE_AND_OFFSET(glob_t, gl_flags);
1056 CHECK_SIZE_AND_OFFSET(glob_t, gl_closedir);
1057 CHECK_SIZE_AND_OFFSET(glob_t, gl_readdir);
1058 CHECK_SIZE_AND_OFFSET(glob_t, gl_opendir);
1059 CHECK_SIZE_AND_OFFSET(glob_t, gl_lstat);
1060 CHECK_SIZE_AND_OFFSET(glob_t, gl_stat);
1061 #endif  // SANITIZER_GLIBC || SANITIZER_FREEBSD
1062 
1063 CHECK_TYPE_SIZE(addrinfo);
1064 CHECK_SIZE_AND_OFFSET(addrinfo, ai_flags);
1065 CHECK_SIZE_AND_OFFSET(addrinfo, ai_family);
1066 CHECK_SIZE_AND_OFFSET(addrinfo, ai_socktype);
1067 CHECK_SIZE_AND_OFFSET(addrinfo, ai_protocol);
1068 CHECK_SIZE_AND_OFFSET(addrinfo, ai_protocol);
1069 CHECK_SIZE_AND_OFFSET(addrinfo, ai_addrlen);
1070 CHECK_SIZE_AND_OFFSET(addrinfo, ai_canonname);
1071 CHECK_SIZE_AND_OFFSET(addrinfo, ai_addr);
1072 
1073 CHECK_TYPE_SIZE(hostent);
1074 CHECK_SIZE_AND_OFFSET(hostent, h_name);
1075 CHECK_SIZE_AND_OFFSET(hostent, h_aliases);
1076 CHECK_SIZE_AND_OFFSET(hostent, h_addrtype);
1077 CHECK_SIZE_AND_OFFSET(hostent, h_length);
1078 CHECK_SIZE_AND_OFFSET(hostent, h_addr_list);
1079 
1080 CHECK_TYPE_SIZE(iovec);
1081 CHECK_SIZE_AND_OFFSET(iovec, iov_base);
1082 CHECK_SIZE_AND_OFFSET(iovec, iov_len);
1083 
1084 // In POSIX, int msg_iovlen; socklen_t msg_controllen; socklen_t cmsg_len; but
1085 // many implementations don't conform to the standard. Since we pick the
1086 // non-conforming glibc definition, exclude the checks for musl (incompatible
1087 // sizes but compatible offsets).
1088 CHECK_TYPE_SIZE(msghdr);
1089 CHECK_SIZE_AND_OFFSET(msghdr, msg_name);
1090 CHECK_SIZE_AND_OFFSET(msghdr, msg_namelen);
1091 CHECK_SIZE_AND_OFFSET(msghdr, msg_iov);
1092 #if SANITIZER_GLIBC || SANITIZER_ANDROID
1093 CHECK_SIZE_AND_OFFSET(msghdr, msg_iovlen);
1094 #endif
1095 CHECK_SIZE_AND_OFFSET(msghdr, msg_control);
1096 #if SANITIZER_GLIBC || SANITIZER_ANDROID
1097 CHECK_SIZE_AND_OFFSET(msghdr, msg_controllen);
1098 #endif
1099 CHECK_SIZE_AND_OFFSET(msghdr, msg_flags);
1100 
1101 CHECK_TYPE_SIZE(cmsghdr);
1102 #if SANITIZER_GLIBC || SANITIZER_ANDROID
1103 CHECK_SIZE_AND_OFFSET(cmsghdr, cmsg_len);
1104 #endif
1105 CHECK_SIZE_AND_OFFSET(cmsghdr, cmsg_level);
1106 CHECK_SIZE_AND_OFFSET(cmsghdr, cmsg_type);
1107 
1108 #  if SANITIZER_LINUX && (SANITIZER_ANDROID || __GLIBC_PREREQ(2, 14))
1109 CHECK_TYPE_SIZE(mmsghdr);
1110 CHECK_SIZE_AND_OFFSET(mmsghdr, msg_hdr);
1111 CHECK_SIZE_AND_OFFSET(mmsghdr, msg_len);
1112 #endif
1113 
1114 COMPILER_CHECK(sizeof(__sanitizer_dirent) <= sizeof(dirent));
1115 CHECK_SIZE_AND_OFFSET(dirent, d_ino);
1116 #if SANITIZER_APPLE
1117 CHECK_SIZE_AND_OFFSET(dirent, d_seekoff);
1118 #elif SANITIZER_FREEBSD || SANITIZER_HAIKU
1119 // There is no 'd_off' field on FreeBSD.
1120 #else
1121 CHECK_SIZE_AND_OFFSET(dirent, d_off);
1122 #endif
1123 CHECK_SIZE_AND_OFFSET(dirent, d_reclen);
1124 
1125 #if SANITIZER_GLIBC
1126 COMPILER_CHECK(sizeof(__sanitizer_dirent64) <= sizeof(dirent64));
1127 CHECK_SIZE_AND_OFFSET(dirent64, d_ino);
1128 CHECK_SIZE_AND_OFFSET(dirent64, d_off);
1129 CHECK_SIZE_AND_OFFSET(dirent64, d_reclen);
1130 #endif
1131 
1132 CHECK_TYPE_SIZE(ifconf);
1133 CHECK_SIZE_AND_OFFSET(ifconf, ifc_len);
1134 #if !SANITIZER_HAIKU
1135 CHECK_SIZE_AND_OFFSET(ifconf, ifc_ifcu);
1136 #endif
1137 
1138 CHECK_TYPE_SIZE(pollfd);
1139 CHECK_SIZE_AND_OFFSET(pollfd, fd);
1140 CHECK_SIZE_AND_OFFSET(pollfd, events);
1141 CHECK_SIZE_AND_OFFSET(pollfd, revents);
1142 
1143 CHECK_TYPE_SIZE(nfds_t);
1144 
1145 CHECK_TYPE_SIZE(sigset_t);
1146 
1147 COMPILER_CHECK(sizeof(__sanitizer_sigaction) == sizeof(struct sigaction));
1148 // Can't write checks for sa_handler and sa_sigaction due to them being
1149 // preprocessor macros.
1150 CHECK_STRUCT_SIZE_AND_OFFSET(sigaction, sa_mask);
1151 #if !defined(__s390x__) || __GLIBC_PREREQ (2, 20)
1152 // On s390x glibc 2.19 and earlier sa_flags was unsigned long, and sa_resv
1153 // didn't exist.
1154 CHECK_STRUCT_SIZE_AND_OFFSET(sigaction, sa_flags);
1155 #endif
1156 #if SANITIZER_LINUX && (!SANITIZER_ANDROID || !SANITIZER_MIPS32)
1157 CHECK_STRUCT_SIZE_AND_OFFSET(sigaction, sa_restorer);
1158 #endif
1159 
1160 #if SANITIZER_HAS_SIGINFO
1161 COMPILER_CHECK(alignof(siginfo_t) == alignof(__sanitizer_siginfo));
1162 using __sanitizer_siginfo_t = __sanitizer_siginfo;
1163 CHECK_TYPE_SIZE(siginfo_t);
1164 CHECK_SIZE_AND_OFFSET(siginfo_t, si_signo);
1165 CHECK_SIZE_AND_OFFSET(siginfo_t, si_errno);
1166 CHECK_SIZE_AND_OFFSET(siginfo_t, si_code);
1167 #endif
1168 
1169 #if SANITIZER_LINUX
1170 CHECK_TYPE_SIZE(__sysctl_args);
1171 CHECK_SIZE_AND_OFFSET(__sysctl_args, name);
1172 CHECK_SIZE_AND_OFFSET(__sysctl_args, nlen);
1173 CHECK_SIZE_AND_OFFSET(__sysctl_args, oldval);
1174 CHECK_SIZE_AND_OFFSET(__sysctl_args, oldlenp);
1175 CHECK_SIZE_AND_OFFSET(__sysctl_args, newval);
1176 CHECK_SIZE_AND_OFFSET(__sysctl_args, newlen);
1177 
1178 CHECK_TYPE_SIZE(__kernel_uid_t);
1179 CHECK_TYPE_SIZE(__kernel_gid_t);
1180 
1181 #if SANITIZER_USES_UID16_SYSCALLS
1182 CHECK_TYPE_SIZE(__kernel_old_uid_t);
1183 CHECK_TYPE_SIZE(__kernel_old_gid_t);
1184 #endif
1185 
1186 CHECK_TYPE_SIZE(__kernel_off_t);
1187 CHECK_TYPE_SIZE(__kernel_loff_t);
1188 CHECK_TYPE_SIZE(__kernel_fd_set);
1189 #endif
1190 
1191 #if !SANITIZER_ANDROID && !SANITIZER_HAIKU
1192 CHECK_TYPE_SIZE(wordexp_t);
1193 CHECK_SIZE_AND_OFFSET(wordexp_t, we_wordc);
1194 CHECK_SIZE_AND_OFFSET(wordexp_t, we_wordv);
1195 CHECK_SIZE_AND_OFFSET(wordexp_t, we_offs);
1196 #endif
1197 
1198 CHECK_TYPE_SIZE(tm);
1199 CHECK_SIZE_AND_OFFSET(tm, tm_sec);
1200 CHECK_SIZE_AND_OFFSET(tm, tm_min);
1201 CHECK_SIZE_AND_OFFSET(tm, tm_hour);
1202 CHECK_SIZE_AND_OFFSET(tm, tm_mday);
1203 CHECK_SIZE_AND_OFFSET(tm, tm_mon);
1204 CHECK_SIZE_AND_OFFSET(tm, tm_year);
1205 CHECK_SIZE_AND_OFFSET(tm, tm_wday);
1206 CHECK_SIZE_AND_OFFSET(tm, tm_yday);
1207 CHECK_SIZE_AND_OFFSET(tm, tm_isdst);
1208 CHECK_SIZE_AND_OFFSET(tm, tm_gmtoff);
1209 CHECK_SIZE_AND_OFFSET(tm, tm_zone);
1210 
1211 #if SANITIZER_LINUX
1212 CHECK_TYPE_SIZE(mntent);
1213 CHECK_SIZE_AND_OFFSET(mntent, mnt_fsname);
1214 CHECK_SIZE_AND_OFFSET(mntent, mnt_dir);
1215 CHECK_SIZE_AND_OFFSET(mntent, mnt_type);
1216 CHECK_SIZE_AND_OFFSET(mntent, mnt_opts);
1217 CHECK_SIZE_AND_OFFSET(mntent, mnt_freq);
1218 CHECK_SIZE_AND_OFFSET(mntent, mnt_passno);
1219 #endif
1220 
1221 #if !SANITIZER_HAIKU
1222 CHECK_TYPE_SIZE(ether_addr);
1223 #endif
1224 
1225 #if SANITIZER_GLIBC || SANITIZER_FREEBSD
1226 CHECK_TYPE_SIZE(ipc_perm);
1227 # if SANITIZER_FREEBSD
1228 CHECK_SIZE_AND_OFFSET(ipc_perm, key);
1229 CHECK_SIZE_AND_OFFSET(ipc_perm, seq);
1230 # else
1231 CHECK_SIZE_AND_OFFSET(ipc_perm, __key);
1232 CHECK_SIZE_AND_OFFSET(ipc_perm, __seq);
1233 # endif
1234 CHECK_SIZE_AND_OFFSET(ipc_perm, uid);
1235 CHECK_SIZE_AND_OFFSET(ipc_perm, gid);
1236 CHECK_SIZE_AND_OFFSET(ipc_perm, cuid);
1237 CHECK_SIZE_AND_OFFSET(ipc_perm, cgid);
1238 #if !SANITIZER_LINUX || __GLIBC_PREREQ (2, 31)
1239 /* glibc 2.30 and earlier provided 16-bit mode field instead of 32-bit
1240    on many architectures.  */
1241 CHECK_SIZE_AND_OFFSET(ipc_perm, mode);
1242 #endif
1243 
1244 CHECK_TYPE_SIZE(shmid_ds);
1245 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_perm);
1246 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_segsz);
1247 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_atime);
1248 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_dtime);
1249 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_ctime);
1250 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_cpid);
1251 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_lpid);
1252 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_nattch);
1253 #endif
1254 
1255 CHECK_TYPE_SIZE(clock_t);
1256 
1257 #if SANITIZER_LINUX
1258 CHECK_TYPE_SIZE(clockid_t);
1259 #endif
1260 
1261 #if !SANITIZER_ANDROID && !SANITIZER_HAIKU
1262 CHECK_TYPE_SIZE(ifaddrs);
1263 CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_next);
1264 CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_name);
1265 CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_addr);
1266 CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_netmask);
1267 #if SANITIZER_LINUX || SANITIZER_FREEBSD
1268 // Compare against the union, because we can't reach into the union in a
1269 // compliant way.
1270 #ifdef ifa_dstaddr
1271 #undef ifa_dstaddr
1272 #endif
1273 # if SANITIZER_FREEBSD
1274 CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_dstaddr);
1275 # else
1276 COMPILER_CHECK(sizeof(((__sanitizer_ifaddrs *)nullptr)->ifa_dstaddr) ==
1277                sizeof(((ifaddrs *)nullptr)->ifa_ifu));
1278 COMPILER_CHECK(offsetof(__sanitizer_ifaddrs, ifa_dstaddr) ==
1279                offsetof(ifaddrs, ifa_ifu));
1280 # endif // SANITIZER_FREEBSD
1281 #else
1282 CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_dstaddr);
1283 #endif // SANITIZER_LINUX
1284 CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_data);
1285 #endif
1286 
1287 #if SANITIZER_GLIBC || SANITIZER_ANDROID
1288 COMPILER_CHECK(sizeof(__sanitizer_struct_mallinfo) == sizeof(struct mallinfo));
1289 #endif
1290 
1291 #if !SANITIZER_ANDROID
1292 CHECK_TYPE_SIZE(timeb);
1293 CHECK_SIZE_AND_OFFSET(timeb, time);
1294 CHECK_SIZE_AND_OFFSET(timeb, millitm);
1295 CHECK_SIZE_AND_OFFSET(timeb, timezone);
1296 CHECK_SIZE_AND_OFFSET(timeb, dstflag);
1297 #endif
1298 
1299 CHECK_TYPE_SIZE(passwd);
1300 CHECK_SIZE_AND_OFFSET(passwd, pw_name);
1301 CHECK_SIZE_AND_OFFSET(passwd, pw_passwd);
1302 CHECK_SIZE_AND_OFFSET(passwd, pw_uid);
1303 CHECK_SIZE_AND_OFFSET(passwd, pw_gid);
1304 CHECK_SIZE_AND_OFFSET(passwd, pw_dir);
1305 CHECK_SIZE_AND_OFFSET(passwd, pw_shell);
1306 
1307 #if !SANITIZER_ANDROID
1308 CHECK_SIZE_AND_OFFSET(passwd, pw_gecos);
1309 #endif
1310 
1311 #if SANITIZER_APPLE
1312 CHECK_SIZE_AND_OFFSET(passwd, pw_change);
1313 CHECK_SIZE_AND_OFFSET(passwd, pw_expire);
1314 CHECK_SIZE_AND_OFFSET(passwd, pw_class);
1315 #endif
1316 
1317 
1318 CHECK_TYPE_SIZE(group);
1319 CHECK_SIZE_AND_OFFSET(group, gr_name);
1320 CHECK_SIZE_AND_OFFSET(group, gr_passwd);
1321 CHECK_SIZE_AND_OFFSET(group, gr_gid);
1322 CHECK_SIZE_AND_OFFSET(group, gr_mem);
1323 
1324 #if HAVE_RPC_XDR_H && !SANITIZER_APPLE
1325 CHECK_TYPE_SIZE(XDR);
1326 CHECK_SIZE_AND_OFFSET(XDR, x_op);
1327 CHECK_SIZE_AND_OFFSET(XDR, x_ops);
1328 CHECK_SIZE_AND_OFFSET(XDR, x_public);
1329 CHECK_SIZE_AND_OFFSET(XDR, x_private);
1330 CHECK_SIZE_AND_OFFSET(XDR, x_base);
1331 CHECK_SIZE_AND_OFFSET(XDR, x_handy);
1332 COMPILER_CHECK(__sanitizer_XDR_ENCODE == XDR_ENCODE);
1333 COMPILER_CHECK(__sanitizer_XDR_DECODE == XDR_DECODE);
1334 COMPILER_CHECK(__sanitizer_XDR_FREE == XDR_FREE);
1335 #endif
1336 
1337 #if SANITIZER_GLIBC
1338 COMPILER_CHECK(sizeof(__sanitizer_FILE) <= sizeof(FILE));
1339 CHECK_SIZE_AND_OFFSET(FILE, _flags);
1340 CHECK_SIZE_AND_OFFSET(FILE, _IO_read_ptr);
1341 CHECK_SIZE_AND_OFFSET(FILE, _IO_read_end);
1342 CHECK_SIZE_AND_OFFSET(FILE, _IO_read_base);
1343 CHECK_SIZE_AND_OFFSET(FILE, _IO_write_ptr);
1344 CHECK_SIZE_AND_OFFSET(FILE, _IO_write_end);
1345 CHECK_SIZE_AND_OFFSET(FILE, _IO_write_base);
1346 CHECK_SIZE_AND_OFFSET(FILE, _IO_buf_base);
1347 CHECK_SIZE_AND_OFFSET(FILE, _IO_buf_end);
1348 CHECK_SIZE_AND_OFFSET(FILE, _IO_save_base);
1349 CHECK_SIZE_AND_OFFSET(FILE, _IO_backup_base);
1350 CHECK_SIZE_AND_OFFSET(FILE, _IO_save_end);
1351 CHECK_SIZE_AND_OFFSET(FILE, _markers);
1352 CHECK_SIZE_AND_OFFSET(FILE, _chain);
1353 CHECK_SIZE_AND_OFFSET(FILE, _fileno);
1354 
1355 COMPILER_CHECK(sizeof(__sanitizer__obstack_chunk) <= sizeof(_obstack_chunk));
1356 CHECK_SIZE_AND_OFFSET(_obstack_chunk, limit);
1357 CHECK_SIZE_AND_OFFSET(_obstack_chunk, prev);
1358 CHECK_TYPE_SIZE(obstack);
1359 CHECK_SIZE_AND_OFFSET(obstack, chunk_size);
1360 CHECK_SIZE_AND_OFFSET(obstack, chunk);
1361 CHECK_SIZE_AND_OFFSET(obstack, object_base);
1362 CHECK_SIZE_AND_OFFSET(obstack, next_free);
1363 
1364 CHECK_TYPE_SIZE(cookie_io_functions_t);
1365 CHECK_SIZE_AND_OFFSET(cookie_io_functions_t, read);
1366 CHECK_SIZE_AND_OFFSET(cookie_io_functions_t, write);
1367 CHECK_SIZE_AND_OFFSET(cookie_io_functions_t, seek);
1368 CHECK_SIZE_AND_OFFSET(cookie_io_functions_t, close);
1369 #endif  // SANITIZER_GLIBC
1370 
1371 #if SANITIZER_LINUX || SANITIZER_FREEBSD
1372 CHECK_TYPE_SIZE(sem_t);
1373 #endif
1374 
1375 #if SANITIZER_LINUX && defined(__arm__)
1376 COMPILER_CHECK(ARM_VFPREGS_SIZE == ARM_VFPREGS_SIZE_ASAN);
1377 #endif
1378 
1379 #endif // SANITIZER_LINUX || SANITIZER_FREEBSD || SANITIZER_APPLE
1380