xref: /llvm-project/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_posix.cpp (revision 6d890a0fb8b1962cf7b58e9e16ff4545f1f2b84f) 
1 //===-- sanitizer_platform_limits_posix.cpp -------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // This file is a part of Sanitizer common code.
10 //
11 // Sizes and layouts of platform-specific POSIX data structures.
12 //===----------------------------------------------------------------------===//
13 
14 #if defined(__linux__) || defined(__APPLE__)
15 // Tests in this file assume that off_t-dependent data structures match the
16 // libc ABI. For example, struct dirent here is what readdir() function (as
17 // exported from libc) returns, and not the user-facing "dirent", which
18 // depends on _FILE_OFFSET_BITS setting.
19 // To get this "true" dirent definition, we undefine _FILE_OFFSET_BITS below.
20 #undef _FILE_OFFSET_BITS
21 #endif
22 
23 // Must go after undef _FILE_OFFSET_BITS.
24 #include "sanitizer_platform.h"
25 
26 #if SANITIZER_LINUX || SANITIZER_APPLE
27 // Must go after undef _FILE_OFFSET_BITS.
28 #include "sanitizer_glibc_version.h"
29 
30 #include <arpa/inet.h>
31 #include <dirent.h>
32 #include <grp.h>
33 #include <limits.h>
34 #include <net/if.h>
35 #include <netdb.h>
36 #include <poll.h>
37 #include <pthread.h>
38 #include <pwd.h>
39 #include <signal.h>
40 #include <stddef.h>
41 #include <stdio.h>
42 #include <sys/mman.h>
43 #include <sys/resource.h>
44 #include <sys/socket.h>
45 #include <sys/stat.h>
46 #include <sys/time.h>
47 #include <sys/times.h>
48 #include <sys/types.h>
49 #include <sys/utsname.h>
50 #include <termios.h>
51 #include <time.h>
52 #include <wchar.h>
53 #include <regex.h>
54 #if !SANITIZER_APPLE
55 #include <utmp.h>
56 #endif
57 
58 #if !SANITIZER_IOS
59 #include <net/route.h>
60 #endif
61 
62 #if !SANITIZER_ANDROID
63 #include <sys/mount.h>
64 #include <sys/timeb.h>
65 #include <utmpx.h>
66 #endif
67 
68 #if SANITIZER_LINUX
69 #include <malloc.h>
70 #include <mntent.h>
71 #include <netinet/ether.h>
72 #include <sys/sysinfo.h>
73 #include <sys/vt.h>
74 #include <linux/cdrom.h>
75 #include <linux/fd.h>
76 #include <linux/fs.h>
77 #include <linux/hdreg.h>
78 #include <linux/input.h>
79 #include <linux/ioctl.h>
80 #include <linux/soundcard.h>
81 #include <linux/sysctl.h>
82 #include <linux/utsname.h>
83 #include <linux/posix_types.h>
84 #include <net/if_arp.h>
85 #endif
86 
87 #if SANITIZER_IOS
88 #undef IOC_DIRMASK
89 #endif
90 
91 #if SANITIZER_LINUX
92 # include <utime.h>
93 # include <sys/ptrace.h>
94 #    if defined(__mips64) || defined(__aarch64__) || defined(__arm__) || \
95         defined(__hexagon__) || SANITIZER_RISCV64
96 #      include <asm/ptrace.h>
97 #      ifdef __arm__
98 typedef struct user_fpregs elf_fpregset_t;
99 #   define ARM_VFPREGS_SIZE_ASAN (32 * 8 /*fpregs*/ + 4 /*fpscr*/)
100 #   if !defined(ARM_VFPREGS_SIZE)
101 #     define ARM_VFPREGS_SIZE ARM_VFPREGS_SIZE_ASAN
102 #   endif
103 #  endif
104 # endif
105 # include <semaphore.h>
106 #endif
107 
108 #if !SANITIZER_ANDROID
109 #include <ifaddrs.h>
110 #include <sys/ucontext.h>
111 #include <wordexp.h>
112 #endif
113 
114 #if SANITIZER_LINUX
115 #if SANITIZER_GLIBC
116 #include <fstab.h>
117 #include <net/if_ppp.h>
118 #include <netax25/ax25.h>
119 #include <netipx/ipx.h>
120 #include <netrom/netrom.h>
121 #include <obstack.h>
122 #if HAVE_RPC_XDR_H
123 # include <rpc/xdr.h>
124 #endif
125 #include <scsi/scsi.h>
126 #else
127 #include <linux/if_ppp.h>
128 #include <linux/kd.h>
129 #include <linux/ppp_defs.h>
130 #endif  // SANITIZER_GLIBC
131 
132 #if SANITIZER_ANDROID
133 #include <linux/mtio.h>
134 #else
135 #include <glob.h>
136 #include <mqueue.h>
137 #include <sys/kd.h>
138 #include <sys/mtio.h>
139 #include <sys/shm.h>
140 #include <sys/statvfs.h>
141 #include <sys/timex.h>
142 #if defined(__mips64)
143 # include <sys/procfs.h>
144 #endif
145 #include <sys/user.h>
146 #include <linux/if_eql.h>
147 #include <linux/if_plip.h>
148 #include <linux/lp.h>
149 #include <linux/mroute.h>
150 #include <linux/mroute6.h>
151 #include <linux/scc.h>
152 #include <linux/serial.h>
153 #include <sys/msg.h>
154 #include <sys/ipc.h>
155 #endif  // SANITIZER_ANDROID
156 
157 #include <link.h>
158 #include <sys/vfs.h>
159 #include <sys/epoll.h>
160 #include <linux/capability.h>
161 #else
162 #include <fstab.h>
163 #endif // SANITIZER_LINUX
164 
165 #if SANITIZER_APPLE
166 #include <net/ethernet.h>
167 #include <sys/filio.h>
168 #include <sys/sockio.h>
169 #endif
170 
171 // Include these after system headers to avoid name clashes and ambiguities.
172 #  include "sanitizer_common.h"
173 #  include "sanitizer_internal_defs.h"
174 #  include "sanitizer_platform_interceptors.h"
175 #  include "sanitizer_platform_limits_posix.h"
176 
177 #if SANITIZER_INTERCEPT_CRYPT_R
178 #include <crypt.h>
179 #endif
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 = sizeof(struct __user_cap_data_struct);
249   unsigned struct_new_utsname_sz = sizeof(struct new_utsname);
250   unsigned struct_old_utsname_sz = sizeof(struct old_utsname);
251   unsigned struct_oldold_utsname_sz = sizeof(struct oldold_utsname);
252 #endif // SANITIZER_LINUX
253 
254 #if SANITIZER_LINUX
255   unsigned struct_rlimit_sz = sizeof(struct rlimit);
256   unsigned struct_timespec_sz = sizeof(struct timespec);
257   unsigned struct_utimbuf_sz = sizeof(struct utimbuf);
258   unsigned struct_itimerspec_sz = sizeof(struct itimerspec);
259 #endif // SANITIZER_LINUX
260 
261 #if SANITIZER_LINUX && !SANITIZER_ANDROID
262   // Use pre-computed size of struct ustat to avoid <sys/ustat.h> which
263   // has been removed from glibc 2.28.
264 #if defined(__aarch64__) || defined(__s390x__) || defined(__mips64) ||     \
265     defined(__powerpc64__) || defined(__arch64__) || defined(__sparcv9) || \
266     defined(__x86_64__) || SANITIZER_RISCV64
267 #define SIZEOF_STRUCT_USTAT 32
268 #    elif defined(__arm__) || defined(__i386__) || defined(__mips__) ||    \
269         defined(__powerpc__) || defined(__s390__) || defined(__sparc__) || \
270         defined(__hexagon__)
271 #      define SIZEOF_STRUCT_USTAT 20
272 #    else
273 #      error Unknown size of struct ustat
274 #    endif
275   unsigned struct_ustat_sz = SIZEOF_STRUCT_USTAT;
276   unsigned struct_rlimit64_sz = sizeof(struct rlimit64);
277   unsigned struct_statvfs64_sz = sizeof(struct statvfs64);
278 #endif // SANITIZER_LINUX && !SANITIZER_ANDROID
279 
280 #if SANITIZER_INTERCEPT_CRYPT_R
281   unsigned struct_crypt_data_sz = sizeof(struct crypt_data);
282 #endif
283 
284 #if SANITIZER_LINUX && !SANITIZER_ANDROID
285   unsigned struct_timex_sz = sizeof(struct timex);
286   unsigned struct_msqid_ds_sz = sizeof(struct msqid_ds);
287   unsigned struct_mq_attr_sz = sizeof(struct mq_attr);
288   unsigned struct_statvfs_sz = sizeof(struct statvfs);
289 #endif // SANITIZER_LINUX && !SANITIZER_ANDROID
290 
291   const uptr sig_ign = (uptr)SIG_IGN;
292   const uptr sig_dfl = (uptr)SIG_DFL;
293   const uptr sig_err = (uptr)SIG_ERR;
294   const uptr sa_siginfo = (uptr)SA_SIGINFO;
295 
296 #if SANITIZER_LINUX
297   int e_tabsz = (int)E_TABSZ;
298 #endif
299 
300 
301 #if SANITIZER_LINUX && !SANITIZER_ANDROID
302   unsigned struct_shminfo_sz = sizeof(struct shminfo);
303   unsigned struct_shm_info_sz = sizeof(struct shm_info);
304   int shmctl_ipc_stat = (int)IPC_STAT;
305   int shmctl_ipc_info = (int)IPC_INFO;
306   int shmctl_shm_info = (int)SHM_INFO;
307   int shmctl_shm_stat = (int)SHM_STAT;
308 #endif
309 
310 #if !SANITIZER_APPLE && !SANITIZER_FREEBSD
311   unsigned struct_utmp_sz = sizeof(struct utmp);
312 #endif
313 #if !SANITIZER_ANDROID
314   unsigned struct_utmpx_sz = sizeof(struct utmpx);
315 #endif
316 
317   int map_fixed = MAP_FIXED;
318 
319   int af_inet = (int)AF_INET;
320   int af_inet6 = (int)AF_INET6;
321 
322   uptr __sanitizer_in_addr_sz(int af) {
323     if (af == AF_INET)
324       return sizeof(struct in_addr);
325     else if (af == AF_INET6)
326       return sizeof(struct in6_addr);
327     else
328       return 0;
329   }
330 
331 #if SANITIZER_LINUX
332 unsigned struct_ElfW_Phdr_sz = sizeof(ElfW(Phdr));
333 #elif SANITIZER_FREEBSD
334 unsigned struct_ElfW_Phdr_sz = sizeof(Elf_Phdr);
335 #endif
336 
337 #if SANITIZER_GLIBC
338   int glob_nomatch = GLOB_NOMATCH;
339   int glob_altdirfunc = GLOB_ALTDIRFUNC;
340 #endif
341 
342 #  if !SANITIZER_ANDROID
343   const int wordexp_wrde_dooffs = WRDE_DOOFFS;
344 #  endif  // !SANITIZER_ANDROID
345 
346 #if SANITIZER_LINUX && !SANITIZER_ANDROID &&                               \
347     (defined(__i386) || defined(__x86_64) || defined(__mips64) ||          \
348      defined(__powerpc64__) || defined(__aarch64__) || defined(__arm__) || \
349      defined(__s390__) || SANITIZER_RISCV64)
350 #if defined(__mips64) || defined(__powerpc64__) || defined(__arm__)
351   unsigned struct_user_regs_struct_sz = sizeof(struct pt_regs);
352   unsigned struct_user_fpregs_struct_sz = sizeof(elf_fpregset_t);
353 #elif SANITIZER_RISCV64
354   unsigned struct_user_regs_struct_sz = sizeof(struct user_regs_struct);
355   unsigned struct_user_fpregs_struct_sz = sizeof(struct __riscv_q_ext_state);
356 #elif defined(__aarch64__)
357   unsigned struct_user_regs_struct_sz = sizeof(struct user_pt_regs);
358   unsigned struct_user_fpregs_struct_sz = sizeof(struct user_fpsimd_state);
359 #elif defined(__s390__)
360   unsigned struct_user_regs_struct_sz = sizeof(struct _user_regs_struct);
361   unsigned struct_user_fpregs_struct_sz = sizeof(struct _user_fpregs_struct);
362 #else
363   unsigned struct_user_regs_struct_sz = sizeof(struct user_regs_struct);
364   unsigned struct_user_fpregs_struct_sz = sizeof(struct user_fpregs_struct);
365 #endif // __mips64 || __powerpc64__ || __aarch64__
366 #if defined(__x86_64) || defined(__mips64) || defined(__powerpc64__) || \
367     defined(__aarch64__) || defined(__arm__) || defined(__s390__) ||    \
368     SANITIZER_RISCV64
369   unsigned struct_user_fpxregs_struct_sz = 0;
370 #else
371   unsigned struct_user_fpxregs_struct_sz = sizeof(struct user_fpxregs_struct);
372 #endif // __x86_64 || __mips64 || __powerpc64__ || __aarch64__ || __arm__
373 // || __s390__
374 #ifdef __arm__
375   unsigned struct_user_vfpregs_struct_sz = ARM_VFPREGS_SIZE;
376 #else
377   unsigned struct_user_vfpregs_struct_sz = 0;
378 #endif
379 
380   int ptrace_peektext = PTRACE_PEEKTEXT;
381   int ptrace_peekdata = PTRACE_PEEKDATA;
382   int ptrace_peekuser = PTRACE_PEEKUSER;
383 #if (defined(PTRACE_GETREGS) && defined(PTRACE_SETREGS)) || \
384     (defined(PT_GETREGS) && defined(PT_SETREGS))
385   int ptrace_getregs = PTRACE_GETREGS;
386   int ptrace_setregs = PTRACE_SETREGS;
387 #else
388   int ptrace_getregs = -1;
389   int ptrace_setregs = -1;
390 #endif
391 #if (defined(PTRACE_GETFPREGS) && defined(PTRACE_SETFPREGS)) || \
392     (defined(PT_GETFPREGS) && defined(PT_SETFPREGS))
393   int ptrace_getfpregs = PTRACE_GETFPREGS;
394   int ptrace_setfpregs = PTRACE_SETFPREGS;
395 #else
396   int ptrace_getfpregs = -1;
397   int ptrace_setfpregs = -1;
398 #endif
399 #if (defined(PTRACE_GETFPXREGS) && defined(PTRACE_SETFPXREGS)) || \
400     (defined(PT_GETFPXREGS) && defined(PT_SETFPXREGS))
401   int ptrace_getfpxregs = PTRACE_GETFPXREGS;
402   int ptrace_setfpxregs = PTRACE_SETFPXREGS;
403 #else
404   int ptrace_getfpxregs = -1;
405   int ptrace_setfpxregs = -1;
406 #endif // PTRACE_GETFPXREGS/PTRACE_SETFPXREGS
407 #if defined(PTRACE_GETVFPREGS) && defined(PTRACE_SETVFPREGS)
408   int ptrace_getvfpregs = PTRACE_GETVFPREGS;
409   int ptrace_setvfpregs = PTRACE_SETVFPREGS;
410 #else
411   int ptrace_getvfpregs = -1;
412   int ptrace_setvfpregs = -1;
413 #endif
414   int ptrace_geteventmsg = PTRACE_GETEVENTMSG;
415 #if (defined(PTRACE_GETSIGINFO) && defined(PTRACE_SETSIGINFO)) ||              \
416     (defined(PT_GETSIGINFO) && defined(PT_SETSIGINFO))
417   int ptrace_getsiginfo = PTRACE_GETSIGINFO;
418   int ptrace_setsiginfo = PTRACE_SETSIGINFO;
419 #else
420   int ptrace_getsiginfo = -1;
421   int ptrace_setsiginfo = -1;
422 #endif // PTRACE_GETSIGINFO/PTRACE_SETSIGINFO
423 #if defined(PTRACE_GETREGSET) && defined(PTRACE_SETREGSET)
424   int ptrace_getregset = PTRACE_GETREGSET;
425   int ptrace_setregset = PTRACE_SETREGSET;
426 #else
427   int ptrace_getregset = -1;
428   int ptrace_setregset = -1;
429 #endif // PTRACE_GETREGSET/PTRACE_SETREGSET
430 #endif
431 
432   unsigned path_max = PATH_MAX;
433 
434   // ioctl arguments
435   unsigned struct_ifreq_sz = sizeof(struct ifreq);
436   unsigned struct_termios_sz = sizeof(struct termios);
437   unsigned struct_winsize_sz = sizeof(struct winsize);
438 
439 #if SANITIZER_LINUX
440   unsigned struct_arpreq_sz = sizeof(struct arpreq);
441   unsigned struct_cdrom_msf_sz = sizeof(struct cdrom_msf);
442   unsigned struct_cdrom_multisession_sz = sizeof(struct cdrom_multisession);
443   unsigned struct_cdrom_read_audio_sz = sizeof(struct cdrom_read_audio);
444   unsigned struct_cdrom_subchnl_sz = sizeof(struct cdrom_subchnl);
445   unsigned struct_cdrom_ti_sz = sizeof(struct cdrom_ti);
446   unsigned struct_cdrom_tocentry_sz = sizeof(struct cdrom_tocentry);
447   unsigned struct_cdrom_tochdr_sz = sizeof(struct cdrom_tochdr);
448   unsigned struct_cdrom_volctrl_sz = sizeof(struct cdrom_volctrl);
449   unsigned struct_ff_effect_sz = sizeof(struct ff_effect);
450   unsigned struct_floppy_drive_params_sz = sizeof(struct floppy_drive_params);
451   unsigned struct_floppy_drive_struct_sz = sizeof(struct floppy_drive_struct);
452   unsigned struct_floppy_fdc_state_sz = sizeof(struct floppy_fdc_state);
453   unsigned struct_floppy_max_errors_sz = sizeof(struct floppy_max_errors);
454   unsigned struct_floppy_raw_cmd_sz = sizeof(struct floppy_raw_cmd);
455   unsigned struct_floppy_struct_sz = sizeof(struct floppy_struct);
456   unsigned struct_floppy_write_errors_sz = sizeof(struct floppy_write_errors);
457   unsigned struct_format_descr_sz = sizeof(struct format_descr);
458   unsigned struct_hd_driveid_sz = sizeof(struct hd_driveid);
459   unsigned struct_hd_geometry_sz = sizeof(struct hd_geometry);
460   unsigned struct_input_absinfo_sz = sizeof(struct input_absinfo);
461   unsigned struct_input_id_sz = sizeof(struct input_id);
462   unsigned struct_mtpos_sz = sizeof(struct mtpos);
463   unsigned struct_rtentry_sz = sizeof(struct rtentry);
464 #if SANITIZER_GLIBC || SANITIZER_ANDROID
465   unsigned struct_termio_sz = sizeof(struct termio);
466 #endif
467   unsigned struct_vt_consize_sz = sizeof(struct vt_consize);
468   unsigned struct_vt_sizes_sz = sizeof(struct vt_sizes);
469   unsigned struct_vt_stat_sz = sizeof(struct vt_stat);
470 #endif // SANITIZER_LINUX
471 
472 #if SANITIZER_LINUX
473 #if SOUND_VERSION >= 0x040000
474   unsigned struct_copr_buffer_sz = 0;
475   unsigned struct_copr_debug_buf_sz = 0;
476   unsigned struct_copr_msg_sz = 0;
477 #else
478   unsigned struct_copr_buffer_sz = sizeof(struct copr_buffer);
479   unsigned struct_copr_debug_buf_sz = sizeof(struct copr_debug_buf);
480   unsigned struct_copr_msg_sz = sizeof(struct copr_msg);
481 #endif
482   unsigned struct_midi_info_sz = sizeof(struct midi_info);
483   unsigned struct_mtget_sz = sizeof(struct mtget);
484   unsigned struct_mtop_sz = sizeof(struct mtop);
485   unsigned struct_sbi_instrument_sz = sizeof(struct sbi_instrument);
486   unsigned struct_seq_event_rec_sz = sizeof(struct seq_event_rec);
487   unsigned struct_synth_info_sz = sizeof(struct synth_info);
488   unsigned struct_vt_mode_sz = sizeof(struct vt_mode);
489 #endif // SANITIZER_LINUX
490 
491 #if SANITIZER_GLIBC
492   unsigned struct_ax25_parms_struct_sz = sizeof(struct ax25_parms_struct);
493 #if EV_VERSION > (0x010000)
494   unsigned struct_input_keymap_entry_sz = sizeof(struct input_keymap_entry);
495 #else
496   unsigned struct_input_keymap_entry_sz = 0;
497 #endif
498   unsigned struct_ipx_config_data_sz = sizeof(struct ipx_config_data);
499   unsigned struct_kbdiacrs_sz = sizeof(struct kbdiacrs);
500   unsigned struct_kbentry_sz = sizeof(struct kbentry);
501   unsigned struct_kbkeycode_sz = sizeof(struct kbkeycode);
502   unsigned struct_kbsentry_sz = sizeof(struct kbsentry);
503   unsigned struct_mtconfiginfo_sz = sizeof(struct mtconfiginfo);
504   unsigned struct_nr_parms_struct_sz = sizeof(struct nr_parms_struct);
505   unsigned struct_scc_modem_sz = sizeof(struct scc_modem);
506   unsigned struct_scc_stat_sz = sizeof(struct scc_stat);
507   unsigned struct_serial_multiport_struct_sz
508       = sizeof(struct serial_multiport_struct);
509   unsigned struct_serial_struct_sz = sizeof(struct serial_struct);
510   unsigned struct_sockaddr_ax25_sz = sizeof(struct sockaddr_ax25);
511   unsigned struct_unimapdesc_sz = sizeof(struct unimapdesc);
512   unsigned struct_unimapinit_sz = sizeof(struct unimapinit);
513 
514   unsigned struct_audio_buf_info_sz = sizeof(struct audio_buf_info);
515   unsigned struct_ppp_stats_sz = sizeof(struct ppp_stats);
516 #endif  // SANITIZER_GLIBC
517 
518 #if !SANITIZER_ANDROID && !SANITIZER_APPLE
519   unsigned struct_sioc_sg_req_sz = sizeof(struct sioc_sg_req);
520   unsigned struct_sioc_vif_req_sz = sizeof(struct sioc_vif_req);
521 #endif
522 
523   const unsigned long __sanitizer_bufsiz = BUFSIZ;
524 
525   const unsigned IOCTL_NOT_PRESENT = 0;
526 
527   unsigned IOCTL_FIOASYNC = FIOASYNC;
528   unsigned IOCTL_FIOCLEX = FIOCLEX;
529   unsigned IOCTL_FIOGETOWN = FIOGETOWN;
530   unsigned IOCTL_FIONBIO = FIONBIO;
531   unsigned IOCTL_FIONCLEX = FIONCLEX;
532   unsigned IOCTL_FIOSETOWN = FIOSETOWN;
533   unsigned IOCTL_SIOCADDMULTI = SIOCADDMULTI;
534   unsigned IOCTL_SIOCATMARK = SIOCATMARK;
535   unsigned IOCTL_SIOCDELMULTI = SIOCDELMULTI;
536   unsigned IOCTL_SIOCGIFADDR = SIOCGIFADDR;
537   unsigned IOCTL_SIOCGIFBRDADDR = SIOCGIFBRDADDR;
538   unsigned IOCTL_SIOCGIFCONF = SIOCGIFCONF;
539   unsigned IOCTL_SIOCGIFDSTADDR = SIOCGIFDSTADDR;
540   unsigned IOCTL_SIOCGIFFLAGS = SIOCGIFFLAGS;
541   unsigned IOCTL_SIOCGIFMETRIC = SIOCGIFMETRIC;
542   unsigned IOCTL_SIOCGIFMTU = SIOCGIFMTU;
543   unsigned IOCTL_SIOCGIFNETMASK = SIOCGIFNETMASK;
544   unsigned IOCTL_SIOCGPGRP = SIOCGPGRP;
545   unsigned IOCTL_SIOCSIFADDR = SIOCSIFADDR;
546   unsigned IOCTL_SIOCSIFBRDADDR = SIOCSIFBRDADDR;
547   unsigned IOCTL_SIOCSIFDSTADDR = SIOCSIFDSTADDR;
548   unsigned IOCTL_SIOCSIFFLAGS = SIOCSIFFLAGS;
549   unsigned IOCTL_SIOCSIFMETRIC = SIOCSIFMETRIC;
550   unsigned IOCTL_SIOCSIFMTU = SIOCSIFMTU;
551   unsigned IOCTL_SIOCSIFNETMASK = SIOCSIFNETMASK;
552   unsigned IOCTL_SIOCSPGRP = SIOCSPGRP;
553   unsigned IOCTL_TIOCCONS = TIOCCONS;
554   unsigned IOCTL_TIOCEXCL = TIOCEXCL;
555   unsigned IOCTL_TIOCGETD = TIOCGETD;
556   unsigned IOCTL_TIOCGPGRP = TIOCGPGRP;
557   unsigned IOCTL_TIOCGWINSZ = TIOCGWINSZ;
558   unsigned IOCTL_TIOCMBIC = TIOCMBIC;
559   unsigned IOCTL_TIOCMBIS = TIOCMBIS;
560   unsigned IOCTL_TIOCMGET = TIOCMGET;
561   unsigned IOCTL_TIOCMSET = TIOCMSET;
562   unsigned IOCTL_TIOCNOTTY = TIOCNOTTY;
563   unsigned IOCTL_TIOCNXCL = TIOCNXCL;
564   unsigned IOCTL_TIOCOUTQ = TIOCOUTQ;
565   unsigned IOCTL_TIOCPKT = TIOCPKT;
566   unsigned IOCTL_TIOCSCTTY = TIOCSCTTY;
567   unsigned IOCTL_TIOCSETD = TIOCSETD;
568   unsigned IOCTL_TIOCSPGRP = TIOCSPGRP;
569   unsigned IOCTL_TIOCSTI = TIOCSTI;
570   unsigned IOCTL_TIOCSWINSZ = TIOCSWINSZ;
571 #if SANITIZER_LINUX && !SANITIZER_ANDROID
572   unsigned IOCTL_SIOCGETSGCNT = SIOCGETSGCNT;
573   unsigned IOCTL_SIOCGETVIFCNT = SIOCGETVIFCNT;
574 #endif
575 
576 #if SANITIZER_LINUX
577   unsigned IOCTL_EVIOCGABS = EVIOCGABS(0);
578   unsigned IOCTL_EVIOCGBIT = EVIOCGBIT(0, 0);
579   unsigned IOCTL_EVIOCGEFFECTS = EVIOCGEFFECTS;
580   unsigned IOCTL_EVIOCGID = EVIOCGID;
581   unsigned IOCTL_EVIOCGKEY = EVIOCGKEY(0);
582   unsigned IOCTL_EVIOCGKEYCODE = EVIOCGKEYCODE;
583   unsigned IOCTL_EVIOCGLED = EVIOCGLED(0);
584   unsigned IOCTL_EVIOCGNAME = EVIOCGNAME(0);
585   unsigned IOCTL_EVIOCGPHYS = EVIOCGPHYS(0);
586   unsigned IOCTL_EVIOCGRAB = EVIOCGRAB;
587   unsigned IOCTL_EVIOCGREP = EVIOCGREP;
588   unsigned IOCTL_EVIOCGSND = EVIOCGSND(0);
589   unsigned IOCTL_EVIOCGSW = EVIOCGSW(0);
590   unsigned IOCTL_EVIOCGUNIQ = EVIOCGUNIQ(0);
591   unsigned IOCTL_EVIOCGVERSION = EVIOCGVERSION;
592   unsigned IOCTL_EVIOCRMFF = EVIOCRMFF;
593   unsigned IOCTL_EVIOCSABS = EVIOCSABS(0);
594   unsigned IOCTL_EVIOCSFF = EVIOCSFF;
595   unsigned IOCTL_EVIOCSKEYCODE = EVIOCSKEYCODE;
596   unsigned IOCTL_EVIOCSREP = EVIOCSREP;
597   unsigned IOCTL_BLKFLSBUF = BLKFLSBUF;
598   unsigned IOCTL_BLKGETSIZE = BLKGETSIZE;
599   unsigned IOCTL_BLKRAGET = BLKRAGET;
600   unsigned IOCTL_BLKRASET = BLKRASET;
601   unsigned IOCTL_BLKROGET = BLKROGET;
602   unsigned IOCTL_BLKROSET = BLKROSET;
603   unsigned IOCTL_BLKRRPART = BLKRRPART;
604   unsigned IOCTL_BLKFRASET = BLKFRASET;
605   unsigned IOCTL_BLKFRAGET = BLKFRAGET;
606   unsigned IOCTL_BLKSECTSET = BLKSECTSET;
607   unsigned IOCTL_BLKSECTGET = BLKSECTGET;
608   unsigned IOCTL_BLKSSZGET = BLKSSZGET;
609   unsigned IOCTL_BLKBSZGET = BLKBSZGET;
610   unsigned IOCTL_BLKBSZSET = BLKBSZSET;
611   unsigned IOCTL_BLKGETSIZE64 = BLKGETSIZE64;
612   unsigned IOCTL_CDROMAUDIOBUFSIZ = CDROMAUDIOBUFSIZ;
613   unsigned IOCTL_CDROMEJECT = CDROMEJECT;
614   unsigned IOCTL_CDROMEJECT_SW = CDROMEJECT_SW;
615   unsigned IOCTL_CDROMMULTISESSION = CDROMMULTISESSION;
616   unsigned IOCTL_CDROMPAUSE = CDROMPAUSE;
617   unsigned IOCTL_CDROMPLAYMSF = CDROMPLAYMSF;
618   unsigned IOCTL_CDROMPLAYTRKIND = CDROMPLAYTRKIND;
619   unsigned IOCTL_CDROMREADAUDIO = CDROMREADAUDIO;
620   unsigned IOCTL_CDROMREADCOOKED = CDROMREADCOOKED;
621   unsigned IOCTL_CDROMREADMODE1 = CDROMREADMODE1;
622   unsigned IOCTL_CDROMREADMODE2 = CDROMREADMODE2;
623   unsigned IOCTL_CDROMREADRAW = CDROMREADRAW;
624   unsigned IOCTL_CDROMREADTOCENTRY = CDROMREADTOCENTRY;
625   unsigned IOCTL_CDROMREADTOCHDR = CDROMREADTOCHDR;
626   unsigned IOCTL_CDROMRESET = CDROMRESET;
627   unsigned IOCTL_CDROMRESUME = CDROMRESUME;
628   unsigned IOCTL_CDROMSEEK = CDROMSEEK;
629   unsigned IOCTL_CDROMSTART = CDROMSTART;
630   unsigned IOCTL_CDROMSTOP = CDROMSTOP;
631   unsigned IOCTL_CDROMSUBCHNL = CDROMSUBCHNL;
632   unsigned IOCTL_CDROMVOLCTRL = CDROMVOLCTRL;
633   unsigned IOCTL_CDROMVOLREAD = CDROMVOLREAD;
634   unsigned IOCTL_CDROM_GET_UPC = CDROM_GET_UPC;
635   unsigned IOCTL_FDCLRPRM = FDCLRPRM;
636   unsigned IOCTL_FDDEFPRM = FDDEFPRM;
637   unsigned IOCTL_FDFLUSH = FDFLUSH;
638   unsigned IOCTL_FDFMTBEG = FDFMTBEG;
639   unsigned IOCTL_FDFMTEND = FDFMTEND;
640   unsigned IOCTL_FDFMTTRK = FDFMTTRK;
641   unsigned IOCTL_FDGETDRVPRM = FDGETDRVPRM;
642   unsigned IOCTL_FDGETDRVSTAT = FDGETDRVSTAT;
643   unsigned IOCTL_FDGETDRVTYP = FDGETDRVTYP;
644   unsigned IOCTL_FDGETFDCSTAT = FDGETFDCSTAT;
645   unsigned IOCTL_FDGETMAXERRS = FDGETMAXERRS;
646   unsigned IOCTL_FDGETPRM = FDGETPRM;
647   unsigned IOCTL_FDMSGOFF = FDMSGOFF;
648   unsigned IOCTL_FDMSGON = FDMSGON;
649   unsigned IOCTL_FDPOLLDRVSTAT = FDPOLLDRVSTAT;
650   unsigned IOCTL_FDRAWCMD = FDRAWCMD;
651   unsigned IOCTL_FDRESET = FDRESET;
652   unsigned IOCTL_FDSETDRVPRM = FDSETDRVPRM;
653   unsigned IOCTL_FDSETEMSGTRESH = FDSETEMSGTRESH;
654   unsigned IOCTL_FDSETMAXERRS = FDSETMAXERRS;
655   unsigned IOCTL_FDSETPRM = FDSETPRM;
656   unsigned IOCTL_FDTWADDLE = FDTWADDLE;
657   unsigned IOCTL_FDWERRORCLR = FDWERRORCLR;
658   unsigned IOCTL_FDWERRORGET = FDWERRORGET;
659   unsigned IOCTL_HDIO_DRIVE_CMD = HDIO_DRIVE_CMD;
660   unsigned IOCTL_HDIO_GETGEO = HDIO_GETGEO;
661   unsigned IOCTL_HDIO_GET_32BIT = HDIO_GET_32BIT;
662   unsigned IOCTL_HDIO_GET_DMA = HDIO_GET_DMA;
663   unsigned IOCTL_HDIO_GET_IDENTITY = HDIO_GET_IDENTITY;
664   unsigned IOCTL_HDIO_GET_KEEPSETTINGS = HDIO_GET_KEEPSETTINGS;
665   unsigned IOCTL_HDIO_GET_MULTCOUNT = HDIO_GET_MULTCOUNT;
666   unsigned IOCTL_HDIO_GET_NOWERR = HDIO_GET_NOWERR;
667   unsigned IOCTL_HDIO_GET_UNMASKINTR = HDIO_GET_UNMASKINTR;
668   unsigned IOCTL_HDIO_SET_32BIT = HDIO_SET_32BIT;
669   unsigned IOCTL_HDIO_SET_DMA = HDIO_SET_DMA;
670   unsigned IOCTL_HDIO_SET_KEEPSETTINGS = HDIO_SET_KEEPSETTINGS;
671   unsigned IOCTL_HDIO_SET_MULTCOUNT = HDIO_SET_MULTCOUNT;
672   unsigned IOCTL_HDIO_SET_NOWERR = HDIO_SET_NOWERR;
673   unsigned IOCTL_HDIO_SET_UNMASKINTR = HDIO_SET_UNMASKINTR;
674   unsigned IOCTL_MTIOCPOS = MTIOCPOS;
675   unsigned IOCTL_PPPIOCGASYNCMAP = PPPIOCGASYNCMAP;
676   unsigned IOCTL_PPPIOCGDEBUG = PPPIOCGDEBUG;
677   unsigned IOCTL_PPPIOCGFLAGS = PPPIOCGFLAGS;
678   unsigned IOCTL_PPPIOCGUNIT = PPPIOCGUNIT;
679   unsigned IOCTL_PPPIOCGXASYNCMAP = PPPIOCGXASYNCMAP;
680   unsigned IOCTL_PPPIOCSASYNCMAP = PPPIOCSASYNCMAP;
681   unsigned IOCTL_PPPIOCSDEBUG = PPPIOCSDEBUG;
682   unsigned IOCTL_PPPIOCSFLAGS = PPPIOCSFLAGS;
683   unsigned IOCTL_PPPIOCSMAXCID = PPPIOCSMAXCID;
684   unsigned IOCTL_PPPIOCSMRU = PPPIOCSMRU;
685   unsigned IOCTL_PPPIOCSXASYNCMAP = PPPIOCSXASYNCMAP;
686   unsigned IOCTL_SIOCADDRT = SIOCADDRT;
687   unsigned IOCTL_SIOCDARP = SIOCDARP;
688   unsigned IOCTL_SIOCDELRT = SIOCDELRT;
689   unsigned IOCTL_SIOCDRARP = SIOCDRARP;
690   unsigned IOCTL_SIOCGARP = SIOCGARP;
691   unsigned IOCTL_SIOCGIFENCAP = SIOCGIFENCAP;
692   unsigned IOCTL_SIOCGIFHWADDR = SIOCGIFHWADDR;
693   unsigned IOCTL_SIOCGIFMAP = SIOCGIFMAP;
694   unsigned IOCTL_SIOCGIFMEM = SIOCGIFMEM;
695   unsigned IOCTL_SIOCGIFNAME = SIOCGIFNAME;
696   unsigned IOCTL_SIOCGIFSLAVE = SIOCGIFSLAVE;
697   unsigned IOCTL_SIOCGRARP = SIOCGRARP;
698   unsigned IOCTL_SIOCGSTAMP = SIOCGSTAMP;
699   unsigned IOCTL_SIOCSARP = SIOCSARP;
700   unsigned IOCTL_SIOCSIFENCAP = SIOCSIFENCAP;
701   unsigned IOCTL_SIOCSIFHWADDR = SIOCSIFHWADDR;
702   unsigned IOCTL_SIOCSIFLINK = SIOCSIFLINK;
703   unsigned IOCTL_SIOCSIFMAP = SIOCSIFMAP;
704   unsigned IOCTL_SIOCSIFMEM = SIOCSIFMEM;
705   unsigned IOCTL_SIOCSIFSLAVE = SIOCSIFSLAVE;
706   unsigned IOCTL_SIOCSRARP = SIOCSRARP;
707 # if SOUND_VERSION >= 0x040000
708   unsigned IOCTL_SNDCTL_COPR_HALT = IOCTL_NOT_PRESENT;
709   unsigned IOCTL_SNDCTL_COPR_LOAD = IOCTL_NOT_PRESENT;
710   unsigned IOCTL_SNDCTL_COPR_RCODE = IOCTL_NOT_PRESENT;
711   unsigned IOCTL_SNDCTL_COPR_RCVMSG = IOCTL_NOT_PRESENT;
712   unsigned IOCTL_SNDCTL_COPR_RDATA = IOCTL_NOT_PRESENT;
713   unsigned IOCTL_SNDCTL_COPR_RESET = IOCTL_NOT_PRESENT;
714   unsigned IOCTL_SNDCTL_COPR_RUN = IOCTL_NOT_PRESENT;
715   unsigned IOCTL_SNDCTL_COPR_SENDMSG = IOCTL_NOT_PRESENT;
716   unsigned IOCTL_SNDCTL_COPR_WCODE = IOCTL_NOT_PRESENT;
717   unsigned IOCTL_SNDCTL_COPR_WDATA = IOCTL_NOT_PRESENT;
718   unsigned IOCTL_SOUND_PCM_READ_BITS = IOCTL_NOT_PRESENT;
719   unsigned IOCTL_SOUND_PCM_READ_CHANNELS = IOCTL_NOT_PRESENT;
720   unsigned IOCTL_SOUND_PCM_READ_FILTER = IOCTL_NOT_PRESENT;
721   unsigned IOCTL_SOUND_PCM_READ_RATE = IOCTL_NOT_PRESENT;
722   unsigned IOCTL_SOUND_PCM_WRITE_CHANNELS = IOCTL_NOT_PRESENT;
723   unsigned IOCTL_SOUND_PCM_WRITE_FILTER = IOCTL_NOT_PRESENT;
724 # else  // SOUND_VERSION
725   unsigned IOCTL_SNDCTL_COPR_HALT = SNDCTL_COPR_HALT;
726   unsigned IOCTL_SNDCTL_COPR_LOAD = SNDCTL_COPR_LOAD;
727   unsigned IOCTL_SNDCTL_COPR_RCODE = SNDCTL_COPR_RCODE;
728   unsigned IOCTL_SNDCTL_COPR_RCVMSG = SNDCTL_COPR_RCVMSG;
729   unsigned IOCTL_SNDCTL_COPR_RDATA = SNDCTL_COPR_RDATA;
730   unsigned IOCTL_SNDCTL_COPR_RESET = SNDCTL_COPR_RESET;
731   unsigned IOCTL_SNDCTL_COPR_RUN = SNDCTL_COPR_RUN;
732   unsigned IOCTL_SNDCTL_COPR_SENDMSG = SNDCTL_COPR_SENDMSG;
733   unsigned IOCTL_SNDCTL_COPR_WCODE = SNDCTL_COPR_WCODE;
734   unsigned IOCTL_SNDCTL_COPR_WDATA = SNDCTL_COPR_WDATA;
735   unsigned IOCTL_SOUND_PCM_READ_BITS = SOUND_PCM_READ_BITS;
736   unsigned IOCTL_SOUND_PCM_READ_CHANNELS = SOUND_PCM_READ_CHANNELS;
737   unsigned IOCTL_SOUND_PCM_READ_FILTER = SOUND_PCM_READ_FILTER;
738   unsigned IOCTL_SOUND_PCM_READ_RATE = SOUND_PCM_READ_RATE;
739   unsigned IOCTL_SOUND_PCM_WRITE_CHANNELS = SOUND_PCM_WRITE_CHANNELS;
740   unsigned IOCTL_SOUND_PCM_WRITE_FILTER = SOUND_PCM_WRITE_FILTER;
741 #endif // SOUND_VERSION
742   unsigned IOCTL_TCFLSH = TCFLSH;
743   unsigned IOCTL_TCGETA = TCGETA;
744   unsigned IOCTL_TCGETS = TCGETS;
745   unsigned IOCTL_TCSBRK = TCSBRK;
746   unsigned IOCTL_TCSBRKP = TCSBRKP;
747   unsigned IOCTL_TCSETA = TCSETA;
748   unsigned IOCTL_TCSETAF = TCSETAF;
749   unsigned IOCTL_TCSETAW = TCSETAW;
750   unsigned IOCTL_TCSETS = TCSETS;
751   unsigned IOCTL_TCSETSF = TCSETSF;
752   unsigned IOCTL_TCSETSW = TCSETSW;
753   unsigned IOCTL_TCXONC = TCXONC;
754   unsigned IOCTL_TIOCGLCKTRMIOS = TIOCGLCKTRMIOS;
755   unsigned IOCTL_TIOCGSOFTCAR = TIOCGSOFTCAR;
756   unsigned IOCTL_TIOCINQ = TIOCINQ;
757   unsigned IOCTL_TIOCLINUX = TIOCLINUX;
758   unsigned IOCTL_TIOCSERCONFIG = TIOCSERCONFIG;
759   unsigned IOCTL_TIOCSERGETLSR = TIOCSERGETLSR;
760   unsigned IOCTL_TIOCSERGWILD = TIOCSERGWILD;
761   unsigned IOCTL_TIOCSERSWILD = TIOCSERSWILD;
762   unsigned IOCTL_TIOCSLCKTRMIOS = TIOCSLCKTRMIOS;
763   unsigned IOCTL_TIOCSSOFTCAR = TIOCSSOFTCAR;
764   unsigned IOCTL_VT_DISALLOCATE = VT_DISALLOCATE;
765   unsigned IOCTL_VT_GETSTATE = VT_GETSTATE;
766   unsigned IOCTL_VT_RESIZE = VT_RESIZE;
767   unsigned IOCTL_VT_RESIZEX = VT_RESIZEX;
768   unsigned IOCTL_VT_SENDSIG = VT_SENDSIG;
769   unsigned IOCTL_MTIOCGET = MTIOCGET;
770   unsigned IOCTL_MTIOCTOP = MTIOCTOP;
771   unsigned IOCTL_SNDCTL_DSP_GETBLKSIZE = SNDCTL_DSP_GETBLKSIZE;
772   unsigned IOCTL_SNDCTL_DSP_GETFMTS = SNDCTL_DSP_GETFMTS;
773   unsigned IOCTL_SNDCTL_DSP_NONBLOCK = SNDCTL_DSP_NONBLOCK;
774   unsigned IOCTL_SNDCTL_DSP_POST = SNDCTL_DSP_POST;
775   unsigned IOCTL_SNDCTL_DSP_RESET = SNDCTL_DSP_RESET;
776   unsigned IOCTL_SNDCTL_DSP_SETFMT = SNDCTL_DSP_SETFMT;
777   unsigned IOCTL_SNDCTL_DSP_SETFRAGMENT = SNDCTL_DSP_SETFRAGMENT;
778   unsigned IOCTL_SNDCTL_DSP_SPEED = SNDCTL_DSP_SPEED;
779   unsigned IOCTL_SNDCTL_DSP_STEREO = SNDCTL_DSP_STEREO;
780   unsigned IOCTL_SNDCTL_DSP_SUBDIVIDE = SNDCTL_DSP_SUBDIVIDE;
781   unsigned IOCTL_SNDCTL_DSP_SYNC = SNDCTL_DSP_SYNC;
782   unsigned IOCTL_SNDCTL_FM_4OP_ENABLE = SNDCTL_FM_4OP_ENABLE;
783   unsigned IOCTL_SNDCTL_FM_LOAD_INSTR = SNDCTL_FM_LOAD_INSTR;
784   unsigned IOCTL_SNDCTL_MIDI_INFO = SNDCTL_MIDI_INFO;
785   unsigned IOCTL_SNDCTL_MIDI_PRETIME = SNDCTL_MIDI_PRETIME;
786   unsigned IOCTL_SNDCTL_SEQ_CTRLRATE = SNDCTL_SEQ_CTRLRATE;
787   unsigned IOCTL_SNDCTL_SEQ_GETINCOUNT = SNDCTL_SEQ_GETINCOUNT;
788   unsigned IOCTL_SNDCTL_SEQ_GETOUTCOUNT = SNDCTL_SEQ_GETOUTCOUNT;
789   unsigned IOCTL_SNDCTL_SEQ_NRMIDIS = SNDCTL_SEQ_NRMIDIS;
790   unsigned IOCTL_SNDCTL_SEQ_NRSYNTHS = SNDCTL_SEQ_NRSYNTHS;
791   unsigned IOCTL_SNDCTL_SEQ_OUTOFBAND = SNDCTL_SEQ_OUTOFBAND;
792   unsigned IOCTL_SNDCTL_SEQ_PANIC = SNDCTL_SEQ_PANIC;
793   unsigned IOCTL_SNDCTL_SEQ_PERCMODE = SNDCTL_SEQ_PERCMODE;
794   unsigned IOCTL_SNDCTL_SEQ_RESET = SNDCTL_SEQ_RESET;
795   unsigned IOCTL_SNDCTL_SEQ_RESETSAMPLES = SNDCTL_SEQ_RESETSAMPLES;
796   unsigned IOCTL_SNDCTL_SEQ_SYNC = SNDCTL_SEQ_SYNC;
797   unsigned IOCTL_SNDCTL_SEQ_TESTMIDI = SNDCTL_SEQ_TESTMIDI;
798   unsigned IOCTL_SNDCTL_SEQ_THRESHOLD = SNDCTL_SEQ_THRESHOLD;
799   unsigned IOCTL_SNDCTL_SYNTH_INFO = SNDCTL_SYNTH_INFO;
800   unsigned IOCTL_SNDCTL_SYNTH_MEMAVL = SNDCTL_SYNTH_MEMAVL;
801   unsigned IOCTL_SNDCTL_TMR_CONTINUE = SNDCTL_TMR_CONTINUE;
802   unsigned IOCTL_SNDCTL_TMR_METRONOME = SNDCTL_TMR_METRONOME;
803   unsigned IOCTL_SNDCTL_TMR_SELECT = SNDCTL_TMR_SELECT;
804   unsigned IOCTL_SNDCTL_TMR_SOURCE = SNDCTL_TMR_SOURCE;
805   unsigned IOCTL_SNDCTL_TMR_START = SNDCTL_TMR_START;
806   unsigned IOCTL_SNDCTL_TMR_STOP = SNDCTL_TMR_STOP;
807   unsigned IOCTL_SNDCTL_TMR_TEMPO = SNDCTL_TMR_TEMPO;
808   unsigned IOCTL_SNDCTL_TMR_TIMEBASE = SNDCTL_TMR_TIMEBASE;
809   unsigned IOCTL_SOUND_MIXER_READ_ALTPCM = SOUND_MIXER_READ_ALTPCM;
810   unsigned IOCTL_SOUND_MIXER_READ_BASS = SOUND_MIXER_READ_BASS;
811   unsigned IOCTL_SOUND_MIXER_READ_CAPS = SOUND_MIXER_READ_CAPS;
812   unsigned IOCTL_SOUND_MIXER_READ_CD = SOUND_MIXER_READ_CD;
813   unsigned IOCTL_SOUND_MIXER_READ_DEVMASK = SOUND_MIXER_READ_DEVMASK;
814   unsigned IOCTL_SOUND_MIXER_READ_ENHANCE = SOUND_MIXER_READ_ENHANCE;
815   unsigned IOCTL_SOUND_MIXER_READ_IGAIN = SOUND_MIXER_READ_IGAIN;
816   unsigned IOCTL_SOUND_MIXER_READ_IMIX = SOUND_MIXER_READ_IMIX;
817   unsigned IOCTL_SOUND_MIXER_READ_LINE = SOUND_MIXER_READ_LINE;
818   unsigned IOCTL_SOUND_MIXER_READ_LINE1 = SOUND_MIXER_READ_LINE1;
819   unsigned IOCTL_SOUND_MIXER_READ_LINE2 = SOUND_MIXER_READ_LINE2;
820   unsigned IOCTL_SOUND_MIXER_READ_LINE3 = SOUND_MIXER_READ_LINE3;
821   unsigned IOCTL_SOUND_MIXER_READ_LOUD = SOUND_MIXER_READ_LOUD;
822   unsigned IOCTL_SOUND_MIXER_READ_MIC = SOUND_MIXER_READ_MIC;
823   unsigned IOCTL_SOUND_MIXER_READ_MUTE = SOUND_MIXER_READ_MUTE;
824   unsigned IOCTL_SOUND_MIXER_READ_OGAIN = SOUND_MIXER_READ_OGAIN;
825   unsigned IOCTL_SOUND_MIXER_READ_PCM = SOUND_MIXER_READ_PCM;
826   unsigned IOCTL_SOUND_MIXER_READ_RECLEV = SOUND_MIXER_READ_RECLEV;
827   unsigned IOCTL_SOUND_MIXER_READ_RECMASK = SOUND_MIXER_READ_RECMASK;
828   unsigned IOCTL_SOUND_MIXER_READ_RECSRC = SOUND_MIXER_READ_RECSRC;
829   unsigned IOCTL_SOUND_MIXER_READ_SPEAKER = SOUND_MIXER_READ_SPEAKER;
830   unsigned IOCTL_SOUND_MIXER_READ_STEREODEVS = SOUND_MIXER_READ_STEREODEVS;
831   unsigned IOCTL_SOUND_MIXER_READ_SYNTH = SOUND_MIXER_READ_SYNTH;
832   unsigned IOCTL_SOUND_MIXER_READ_TREBLE = SOUND_MIXER_READ_TREBLE;
833   unsigned IOCTL_SOUND_MIXER_READ_VOLUME = SOUND_MIXER_READ_VOLUME;
834   unsigned IOCTL_SOUND_MIXER_WRITE_ALTPCM = SOUND_MIXER_WRITE_ALTPCM;
835   unsigned IOCTL_SOUND_MIXER_WRITE_BASS = SOUND_MIXER_WRITE_BASS;
836   unsigned IOCTL_SOUND_MIXER_WRITE_CD = SOUND_MIXER_WRITE_CD;
837   unsigned IOCTL_SOUND_MIXER_WRITE_ENHANCE = SOUND_MIXER_WRITE_ENHANCE;
838   unsigned IOCTL_SOUND_MIXER_WRITE_IGAIN = SOUND_MIXER_WRITE_IGAIN;
839   unsigned IOCTL_SOUND_MIXER_WRITE_IMIX = SOUND_MIXER_WRITE_IMIX;
840   unsigned IOCTL_SOUND_MIXER_WRITE_LINE = SOUND_MIXER_WRITE_LINE;
841   unsigned IOCTL_SOUND_MIXER_WRITE_LINE1 = SOUND_MIXER_WRITE_LINE1;
842   unsigned IOCTL_SOUND_MIXER_WRITE_LINE2 = SOUND_MIXER_WRITE_LINE2;
843   unsigned IOCTL_SOUND_MIXER_WRITE_LINE3 = SOUND_MIXER_WRITE_LINE3;
844   unsigned IOCTL_SOUND_MIXER_WRITE_LOUD = SOUND_MIXER_WRITE_LOUD;
845   unsigned IOCTL_SOUND_MIXER_WRITE_MIC = SOUND_MIXER_WRITE_MIC;
846   unsigned IOCTL_SOUND_MIXER_WRITE_MUTE = SOUND_MIXER_WRITE_MUTE;
847   unsigned IOCTL_SOUND_MIXER_WRITE_OGAIN = SOUND_MIXER_WRITE_OGAIN;
848   unsigned IOCTL_SOUND_MIXER_WRITE_PCM = SOUND_MIXER_WRITE_PCM;
849   unsigned IOCTL_SOUND_MIXER_WRITE_RECLEV = SOUND_MIXER_WRITE_RECLEV;
850   unsigned IOCTL_SOUND_MIXER_WRITE_RECSRC = SOUND_MIXER_WRITE_RECSRC;
851   unsigned IOCTL_SOUND_MIXER_WRITE_SPEAKER = SOUND_MIXER_WRITE_SPEAKER;
852   unsigned IOCTL_SOUND_MIXER_WRITE_SYNTH = SOUND_MIXER_WRITE_SYNTH;
853   unsigned IOCTL_SOUND_MIXER_WRITE_TREBLE = SOUND_MIXER_WRITE_TREBLE;
854   unsigned IOCTL_SOUND_MIXER_WRITE_VOLUME = SOUND_MIXER_WRITE_VOLUME;
855   unsigned IOCTL_VT_ACTIVATE = VT_ACTIVATE;
856   unsigned IOCTL_VT_GETMODE = VT_GETMODE;
857   unsigned IOCTL_VT_OPENQRY = VT_OPENQRY;
858   unsigned IOCTL_VT_RELDISP = VT_RELDISP;
859   unsigned IOCTL_VT_SETMODE = VT_SETMODE;
860   unsigned IOCTL_VT_WAITACTIVE = VT_WAITACTIVE;
861 #endif // SANITIZER_LINUX
862 
863 #if SANITIZER_LINUX && !SANITIZER_ANDROID
864   unsigned IOCTL_EQL_EMANCIPATE = EQL_EMANCIPATE;
865   unsigned IOCTL_EQL_ENSLAVE = EQL_ENSLAVE;
866   unsigned IOCTL_EQL_GETMASTRCFG = EQL_GETMASTRCFG;
867   unsigned IOCTL_EQL_GETSLAVECFG = EQL_GETSLAVECFG;
868   unsigned IOCTL_EQL_SETMASTRCFG = EQL_SETMASTRCFG;
869   unsigned IOCTL_EQL_SETSLAVECFG = EQL_SETSLAVECFG;
870 #if EV_VERSION > (0x010000)
871   unsigned IOCTL_EVIOCGKEYCODE_V2 = EVIOCGKEYCODE_V2;
872   unsigned IOCTL_EVIOCGPROP = EVIOCGPROP(0);
873   unsigned IOCTL_EVIOCSKEYCODE_V2 = EVIOCSKEYCODE_V2;
874 #else
875   unsigned IOCTL_EVIOCGKEYCODE_V2 = IOCTL_NOT_PRESENT;
876   unsigned IOCTL_EVIOCGPROP = IOCTL_NOT_PRESENT;
877   unsigned IOCTL_EVIOCSKEYCODE_V2 = IOCTL_NOT_PRESENT;
878 #endif
879   unsigned IOCTL_FS_IOC_GETFLAGS = FS_IOC_GETFLAGS;
880   unsigned IOCTL_FS_IOC_GETVERSION = FS_IOC_GETVERSION;
881   unsigned IOCTL_FS_IOC_SETFLAGS = FS_IOC_SETFLAGS;
882   unsigned IOCTL_FS_IOC_SETVERSION = FS_IOC_SETVERSION;
883   unsigned IOCTL_GIO_CMAP = GIO_CMAP;
884   unsigned IOCTL_GIO_FONT = GIO_FONT;
885   unsigned IOCTL_GIO_UNIMAP = GIO_UNIMAP;
886   unsigned IOCTL_GIO_UNISCRNMAP = GIO_UNISCRNMAP;
887   unsigned IOCTL_KDADDIO = KDADDIO;
888   unsigned IOCTL_KDDELIO = KDDELIO;
889   unsigned IOCTL_KDGETKEYCODE = KDGETKEYCODE;
890   unsigned IOCTL_KDGKBDIACR = KDGKBDIACR;
891   unsigned IOCTL_KDGKBENT = KDGKBENT;
892   unsigned IOCTL_KDGKBLED = KDGKBLED;
893   unsigned IOCTL_KDGKBMETA = KDGKBMETA;
894   unsigned IOCTL_KDGKBSENT = KDGKBSENT;
895   unsigned IOCTL_KDMAPDISP = KDMAPDISP;
896   unsigned IOCTL_KDSETKEYCODE = KDSETKEYCODE;
897   unsigned IOCTL_KDSIGACCEPT = KDSIGACCEPT;
898   unsigned IOCTL_KDSKBDIACR = KDSKBDIACR;
899   unsigned IOCTL_KDSKBENT = KDSKBENT;
900   unsigned IOCTL_KDSKBLED = KDSKBLED;
901   unsigned IOCTL_KDSKBMETA = KDSKBMETA;
902   unsigned IOCTL_KDSKBSENT = KDSKBSENT;
903   unsigned IOCTL_KDUNMAPDISP = KDUNMAPDISP;
904   unsigned IOCTL_LPABORT = LPABORT;
905   unsigned IOCTL_LPABORTOPEN = LPABORTOPEN;
906   unsigned IOCTL_LPCAREFUL = LPCAREFUL;
907   unsigned IOCTL_LPCHAR = LPCHAR;
908   unsigned IOCTL_LPGETIRQ = LPGETIRQ;
909   unsigned IOCTL_LPGETSTATUS = LPGETSTATUS;
910   unsigned IOCTL_LPRESET = LPRESET;
911   unsigned IOCTL_LPSETIRQ = LPSETIRQ;
912   unsigned IOCTL_LPTIME = LPTIME;
913   unsigned IOCTL_LPWAIT = LPWAIT;
914   unsigned IOCTL_MTIOCGETCONFIG = MTIOCGETCONFIG;
915   unsigned IOCTL_MTIOCSETCONFIG = MTIOCSETCONFIG;
916   unsigned IOCTL_PIO_CMAP = PIO_CMAP;
917   unsigned IOCTL_PIO_FONT = PIO_FONT;
918   unsigned IOCTL_PIO_UNIMAP = PIO_UNIMAP;
919   unsigned IOCTL_PIO_UNIMAPCLR = PIO_UNIMAPCLR;
920   unsigned IOCTL_PIO_UNISCRNMAP = PIO_UNISCRNMAP;
921 #if SANITIZER_GLIBC
922   unsigned IOCTL_SCSI_IOCTL_GET_IDLUN = SCSI_IOCTL_GET_IDLUN;
923   unsigned IOCTL_SCSI_IOCTL_PROBE_HOST = SCSI_IOCTL_PROBE_HOST;
924   unsigned IOCTL_SCSI_IOCTL_TAGGED_DISABLE = SCSI_IOCTL_TAGGED_DISABLE;
925   unsigned IOCTL_SCSI_IOCTL_TAGGED_ENABLE = SCSI_IOCTL_TAGGED_ENABLE;
926   unsigned IOCTL_SIOCAIPXITFCRT = SIOCAIPXITFCRT;
927   unsigned IOCTL_SIOCAIPXPRISLT = SIOCAIPXPRISLT;
928   unsigned IOCTL_SIOCAX25ADDUID = SIOCAX25ADDUID;
929   unsigned IOCTL_SIOCAX25DELUID = SIOCAX25DELUID;
930   unsigned IOCTL_SIOCAX25GETPARMS = SIOCAX25GETPARMS;
931   unsigned IOCTL_SIOCAX25GETUID = SIOCAX25GETUID;
932   unsigned IOCTL_SIOCAX25NOUID = SIOCAX25NOUID;
933   unsigned IOCTL_SIOCAX25SETPARMS = SIOCAX25SETPARMS;
934   unsigned IOCTL_SIOCDEVPLIP = SIOCDEVPLIP;
935   unsigned IOCTL_SIOCIPXCFGDATA = SIOCIPXCFGDATA;
936   unsigned IOCTL_SIOCNRDECOBS = SIOCNRDECOBS;
937   unsigned IOCTL_SIOCNRGETPARMS = SIOCNRGETPARMS;
938   unsigned IOCTL_SIOCNRRTCTL = SIOCNRRTCTL;
939   unsigned IOCTL_SIOCNRSETPARMS = SIOCNRSETPARMS;
940 #endif
941   unsigned IOCTL_TIOCGSERIAL = TIOCGSERIAL;
942   unsigned IOCTL_TIOCSERGETMULTI = TIOCSERGETMULTI;
943   unsigned IOCTL_TIOCSERSETMULTI = TIOCSERSETMULTI;
944   unsigned IOCTL_TIOCSSERIAL = TIOCSSERIAL;
945 #endif // SANITIZER_LINUX && !SANITIZER_ANDROID
946 
947 #if SANITIZER_LINUX && !SANITIZER_ANDROID
948   unsigned IOCTL_GIO_SCRNMAP = GIO_SCRNMAP;
949   unsigned IOCTL_KDDISABIO = KDDISABIO;
950   unsigned IOCTL_KDENABIO = KDENABIO;
951   unsigned IOCTL_KDGETLED = KDGETLED;
952   unsigned IOCTL_KDGETMODE = KDGETMODE;
953   unsigned IOCTL_KDGKBMODE = KDGKBMODE;
954   unsigned IOCTL_KDGKBTYPE = KDGKBTYPE;
955   unsigned IOCTL_KDMKTONE = KDMKTONE;
956   unsigned IOCTL_KDSETLED = KDSETLED;
957   unsigned IOCTL_KDSETMODE = KDSETMODE;
958   unsigned IOCTL_KDSKBMODE = KDSKBMODE;
959   unsigned IOCTL_KIOCSOUND = KIOCSOUND;
960   unsigned IOCTL_PIO_SCRNMAP = PIO_SCRNMAP;
961   unsigned IOCTL_SNDCTL_DSP_GETISPACE = SNDCTL_DSP_GETISPACE;
962   unsigned IOCTL_SNDCTL_DSP_GETOSPACE = SNDCTL_DSP_GETOSPACE;
963 #endif // (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
964 
965   const int si_SEGV_MAPERR = SEGV_MAPERR;
966   const int si_SEGV_ACCERR = SEGV_ACCERR;
967 } // namespace __sanitizer
968 
969 using namespace __sanitizer;
970 
971 COMPILER_CHECK(sizeof(__sanitizer_pthread_attr_t) >= sizeof(pthread_attr_t));
972 
973 COMPILER_CHECK(sizeof(socklen_t) == sizeof(unsigned));
974 CHECK_TYPE_SIZE(pthread_key_t);
975 
976 #if SANITIZER_LINUX
977 // FIXME: We define those on Linux and Mac, but only check on Linux.
978 COMPILER_CHECK(IOC_NRBITS == _IOC_NRBITS);
979 COMPILER_CHECK(IOC_TYPEBITS == _IOC_TYPEBITS);
980 COMPILER_CHECK(IOC_SIZEBITS == _IOC_SIZEBITS);
981 COMPILER_CHECK(IOC_DIRBITS == _IOC_DIRBITS);
982 COMPILER_CHECK(IOC_NRMASK == _IOC_NRMASK);
983 COMPILER_CHECK(IOC_TYPEMASK == _IOC_TYPEMASK);
984 COMPILER_CHECK(IOC_SIZEMASK == _IOC_SIZEMASK);
985 COMPILER_CHECK(IOC_DIRMASK == _IOC_DIRMASK);
986 COMPILER_CHECK(IOC_NRSHIFT == _IOC_NRSHIFT);
987 COMPILER_CHECK(IOC_TYPESHIFT == _IOC_TYPESHIFT);
988 COMPILER_CHECK(IOC_SIZESHIFT == _IOC_SIZESHIFT);
989 COMPILER_CHECK(IOC_DIRSHIFT == _IOC_DIRSHIFT);
990 COMPILER_CHECK(IOC_NONE == _IOC_NONE);
991 COMPILER_CHECK(IOC_WRITE == _IOC_WRITE);
992 COMPILER_CHECK(IOC_READ == _IOC_READ);
993 COMPILER_CHECK(EVIOC_ABS_MAX == ABS_MAX);
994 COMPILER_CHECK(EVIOC_EV_MAX == EV_MAX);
995 COMPILER_CHECK(IOC_SIZE(0x12345678) == _IOC_SIZE(0x12345678));
996 COMPILER_CHECK(IOC_DIR(0x12345678) == _IOC_DIR(0x12345678));
997 COMPILER_CHECK(IOC_NR(0x12345678) == _IOC_NR(0x12345678));
998 COMPILER_CHECK(IOC_TYPE(0x12345678) == _IOC_TYPE(0x12345678));
999 #endif // SANITIZER_LINUX
1000 
1001 #if SANITIZER_LINUX || SANITIZER_FREEBSD
1002 // There are more undocumented fields in dl_phdr_info that we are not interested
1003 // in.
1004 COMPILER_CHECK(sizeof(__sanitizer_dl_phdr_info) <= sizeof(dl_phdr_info));
1005 CHECK_SIZE_AND_OFFSET(dl_phdr_info, dlpi_addr);
1006 CHECK_SIZE_AND_OFFSET(dl_phdr_info, dlpi_name);
1007 CHECK_SIZE_AND_OFFSET(dl_phdr_info, dlpi_phdr);
1008 CHECK_SIZE_AND_OFFSET(dl_phdr_info, dlpi_phnum);
1009 #endif // SANITIZER_LINUX || SANITIZER_FREEBSD
1010 
1011 #if SANITIZER_GLIBC || SANITIZER_FREEBSD
1012 CHECK_TYPE_SIZE(glob_t);
1013 CHECK_SIZE_AND_OFFSET(glob_t, gl_pathc);
1014 CHECK_SIZE_AND_OFFSET(glob_t, gl_pathv);
1015 CHECK_SIZE_AND_OFFSET(glob_t, gl_offs);
1016 CHECK_SIZE_AND_OFFSET(glob_t, gl_flags);
1017 CHECK_SIZE_AND_OFFSET(glob_t, gl_closedir);
1018 CHECK_SIZE_AND_OFFSET(glob_t, gl_readdir);
1019 CHECK_SIZE_AND_OFFSET(glob_t, gl_opendir);
1020 CHECK_SIZE_AND_OFFSET(glob_t, gl_lstat);
1021 CHECK_SIZE_AND_OFFSET(glob_t, gl_stat);
1022 #endif  // SANITIZER_GLIBC || SANITIZER_FREEBSD
1023 
1024 CHECK_TYPE_SIZE(addrinfo);
1025 CHECK_SIZE_AND_OFFSET(addrinfo, ai_flags);
1026 CHECK_SIZE_AND_OFFSET(addrinfo, ai_family);
1027 CHECK_SIZE_AND_OFFSET(addrinfo, ai_socktype);
1028 CHECK_SIZE_AND_OFFSET(addrinfo, ai_protocol);
1029 CHECK_SIZE_AND_OFFSET(addrinfo, ai_protocol);
1030 CHECK_SIZE_AND_OFFSET(addrinfo, ai_addrlen);
1031 CHECK_SIZE_AND_OFFSET(addrinfo, ai_canonname);
1032 CHECK_SIZE_AND_OFFSET(addrinfo, ai_addr);
1033 
1034 CHECK_TYPE_SIZE(hostent);
1035 CHECK_SIZE_AND_OFFSET(hostent, h_name);
1036 CHECK_SIZE_AND_OFFSET(hostent, h_aliases);
1037 CHECK_SIZE_AND_OFFSET(hostent, h_addrtype);
1038 CHECK_SIZE_AND_OFFSET(hostent, h_length);
1039 CHECK_SIZE_AND_OFFSET(hostent, h_addr_list);
1040 
1041 CHECK_TYPE_SIZE(iovec);
1042 CHECK_SIZE_AND_OFFSET(iovec, iov_base);
1043 CHECK_SIZE_AND_OFFSET(iovec, iov_len);
1044 
1045 // In POSIX, int msg_iovlen; socklen_t msg_controllen; socklen_t cmsg_len; but
1046 // many implementations don't conform to the standard. Since we pick the
1047 // non-conforming glibc definition, exclude the checks for musl (incompatible
1048 // sizes but compatible offsets).
1049 CHECK_TYPE_SIZE(msghdr);
1050 CHECK_SIZE_AND_OFFSET(msghdr, msg_name);
1051 CHECK_SIZE_AND_OFFSET(msghdr, msg_namelen);
1052 CHECK_SIZE_AND_OFFSET(msghdr, msg_iov);
1053 #if SANITIZER_GLIBC || SANITIZER_ANDROID
1054 CHECK_SIZE_AND_OFFSET(msghdr, msg_iovlen);
1055 #endif
1056 CHECK_SIZE_AND_OFFSET(msghdr, msg_control);
1057 #if SANITIZER_GLIBC || SANITIZER_ANDROID
1058 CHECK_SIZE_AND_OFFSET(msghdr, msg_controllen);
1059 #endif
1060 CHECK_SIZE_AND_OFFSET(msghdr, msg_flags);
1061 
1062 CHECK_TYPE_SIZE(cmsghdr);
1063 #if SANITIZER_GLIBC || SANITIZER_ANDROID
1064 CHECK_SIZE_AND_OFFSET(cmsghdr, cmsg_len);
1065 #endif
1066 CHECK_SIZE_AND_OFFSET(cmsghdr, cmsg_level);
1067 CHECK_SIZE_AND_OFFSET(cmsghdr, cmsg_type);
1068 
1069 #if SANITIZER_LINUX && (__ANDROID_API__ >= 21 || __GLIBC_PREREQ (2, 14))
1070 CHECK_TYPE_SIZE(mmsghdr);
1071 CHECK_SIZE_AND_OFFSET(mmsghdr, msg_hdr);
1072 CHECK_SIZE_AND_OFFSET(mmsghdr, msg_len);
1073 #endif
1074 
1075 COMPILER_CHECK(sizeof(__sanitizer_dirent) <= sizeof(dirent));
1076 CHECK_SIZE_AND_OFFSET(dirent, d_ino);
1077 #if SANITIZER_APPLE
1078 CHECK_SIZE_AND_OFFSET(dirent, d_seekoff);
1079 #elif SANITIZER_FREEBSD
1080 // There is no 'd_off' field on FreeBSD.
1081 #else
1082 CHECK_SIZE_AND_OFFSET(dirent, d_off);
1083 #endif
1084 CHECK_SIZE_AND_OFFSET(dirent, d_reclen);
1085 
1086 #if SANITIZER_LINUX && !SANITIZER_ANDROID
1087 COMPILER_CHECK(sizeof(__sanitizer_dirent64) <= sizeof(dirent64));
1088 CHECK_SIZE_AND_OFFSET(dirent64, d_ino);
1089 CHECK_SIZE_AND_OFFSET(dirent64, d_off);
1090 CHECK_SIZE_AND_OFFSET(dirent64, d_reclen);
1091 #endif
1092 
1093 CHECK_TYPE_SIZE(ifconf);
1094 CHECK_SIZE_AND_OFFSET(ifconf, ifc_len);
1095 CHECK_SIZE_AND_OFFSET(ifconf, ifc_ifcu);
1096 
1097 CHECK_TYPE_SIZE(pollfd);
1098 CHECK_SIZE_AND_OFFSET(pollfd, fd);
1099 CHECK_SIZE_AND_OFFSET(pollfd, events);
1100 CHECK_SIZE_AND_OFFSET(pollfd, revents);
1101 
1102 CHECK_TYPE_SIZE(nfds_t);
1103 
1104 CHECK_TYPE_SIZE(sigset_t);
1105 
1106 COMPILER_CHECK(sizeof(__sanitizer_sigaction) == sizeof(struct sigaction));
1107 // Can't write checks for sa_handler and sa_sigaction due to them being
1108 // preprocessor macros.
1109 CHECK_STRUCT_SIZE_AND_OFFSET(sigaction, sa_mask);
1110 #if !defined(__s390x__) || __GLIBC_PREREQ (2, 20)
1111 // On s390x glibc 2.19 and earlier sa_flags was unsigned long, and sa_resv
1112 // didn't exist.
1113 CHECK_STRUCT_SIZE_AND_OFFSET(sigaction, sa_flags);
1114 #endif
1115 #if SANITIZER_LINUX && (!SANITIZER_ANDROID || !SANITIZER_MIPS32)
1116 CHECK_STRUCT_SIZE_AND_OFFSET(sigaction, sa_restorer);
1117 #endif
1118 
1119 #if SANITIZER_LINUX
1120 CHECK_TYPE_SIZE(__sysctl_args);
1121 CHECK_SIZE_AND_OFFSET(__sysctl_args, name);
1122 CHECK_SIZE_AND_OFFSET(__sysctl_args, nlen);
1123 CHECK_SIZE_AND_OFFSET(__sysctl_args, oldval);
1124 CHECK_SIZE_AND_OFFSET(__sysctl_args, oldlenp);
1125 CHECK_SIZE_AND_OFFSET(__sysctl_args, newval);
1126 CHECK_SIZE_AND_OFFSET(__sysctl_args, newlen);
1127 
1128 CHECK_TYPE_SIZE(__kernel_uid_t);
1129 CHECK_TYPE_SIZE(__kernel_gid_t);
1130 
1131 #if SANITIZER_USES_UID16_SYSCALLS
1132 CHECK_TYPE_SIZE(__kernel_old_uid_t);
1133 CHECK_TYPE_SIZE(__kernel_old_gid_t);
1134 #endif
1135 
1136 CHECK_TYPE_SIZE(__kernel_off_t);
1137 CHECK_TYPE_SIZE(__kernel_loff_t);
1138 CHECK_TYPE_SIZE(__kernel_fd_set);
1139 #endif
1140 
1141 #if !SANITIZER_ANDROID
1142 CHECK_TYPE_SIZE(wordexp_t);
1143 CHECK_SIZE_AND_OFFSET(wordexp_t, we_wordc);
1144 CHECK_SIZE_AND_OFFSET(wordexp_t, we_wordv);
1145 CHECK_SIZE_AND_OFFSET(wordexp_t, we_offs);
1146 #endif
1147 
1148 CHECK_TYPE_SIZE(tm);
1149 CHECK_SIZE_AND_OFFSET(tm, tm_sec);
1150 CHECK_SIZE_AND_OFFSET(tm, tm_min);
1151 CHECK_SIZE_AND_OFFSET(tm, tm_hour);
1152 CHECK_SIZE_AND_OFFSET(tm, tm_mday);
1153 CHECK_SIZE_AND_OFFSET(tm, tm_mon);
1154 CHECK_SIZE_AND_OFFSET(tm, tm_year);
1155 CHECK_SIZE_AND_OFFSET(tm, tm_wday);
1156 CHECK_SIZE_AND_OFFSET(tm, tm_yday);
1157 CHECK_SIZE_AND_OFFSET(tm, tm_isdst);
1158 CHECK_SIZE_AND_OFFSET(tm, tm_gmtoff);
1159 CHECK_SIZE_AND_OFFSET(tm, tm_zone);
1160 
1161 #if SANITIZER_LINUX
1162 CHECK_TYPE_SIZE(mntent);
1163 CHECK_SIZE_AND_OFFSET(mntent, mnt_fsname);
1164 CHECK_SIZE_AND_OFFSET(mntent, mnt_dir);
1165 CHECK_SIZE_AND_OFFSET(mntent, mnt_type);
1166 CHECK_SIZE_AND_OFFSET(mntent, mnt_opts);
1167 CHECK_SIZE_AND_OFFSET(mntent, mnt_freq);
1168 CHECK_SIZE_AND_OFFSET(mntent, mnt_passno);
1169 #endif
1170 
1171 CHECK_TYPE_SIZE(ether_addr);
1172 
1173 #if SANITIZER_GLIBC || SANITIZER_FREEBSD
1174 CHECK_TYPE_SIZE(ipc_perm);
1175 # if SANITIZER_FREEBSD
1176 CHECK_SIZE_AND_OFFSET(ipc_perm, key);
1177 CHECK_SIZE_AND_OFFSET(ipc_perm, seq);
1178 # else
1179 CHECK_SIZE_AND_OFFSET(ipc_perm, __key);
1180 CHECK_SIZE_AND_OFFSET(ipc_perm, __seq);
1181 # endif
1182 CHECK_SIZE_AND_OFFSET(ipc_perm, uid);
1183 CHECK_SIZE_AND_OFFSET(ipc_perm, gid);
1184 CHECK_SIZE_AND_OFFSET(ipc_perm, cuid);
1185 CHECK_SIZE_AND_OFFSET(ipc_perm, cgid);
1186 #if !SANITIZER_LINUX || __GLIBC_PREREQ (2, 31)
1187 /* glibc 2.30 and earlier provided 16-bit mode field instead of 32-bit
1188    on many architectures.  */
1189 CHECK_SIZE_AND_OFFSET(ipc_perm, mode);
1190 #endif
1191 
1192 CHECK_TYPE_SIZE(shmid_ds);
1193 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_perm);
1194 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_segsz);
1195 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_atime);
1196 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_dtime);
1197 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_ctime);
1198 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_cpid);
1199 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_lpid);
1200 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_nattch);
1201 #endif
1202 
1203 CHECK_TYPE_SIZE(clock_t);
1204 
1205 #if SANITIZER_LINUX
1206 CHECK_TYPE_SIZE(clockid_t);
1207 #endif
1208 
1209 #if !SANITIZER_ANDROID
1210 CHECK_TYPE_SIZE(ifaddrs);
1211 CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_next);
1212 CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_name);
1213 CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_addr);
1214 CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_netmask);
1215 #if SANITIZER_LINUX || SANITIZER_FREEBSD
1216 // Compare against the union, because we can't reach into the union in a
1217 // compliant way.
1218 #ifdef ifa_dstaddr
1219 #undef ifa_dstaddr
1220 #endif
1221 # if SANITIZER_FREEBSD
1222 CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_dstaddr);
1223 # else
1224 COMPILER_CHECK(sizeof(((__sanitizer_ifaddrs *)nullptr)->ifa_dstaddr) ==
1225                sizeof(((ifaddrs *)nullptr)->ifa_ifu));
1226 COMPILER_CHECK(offsetof(__sanitizer_ifaddrs, ifa_dstaddr) ==
1227                offsetof(ifaddrs, ifa_ifu));
1228 # endif // SANITIZER_FREEBSD
1229 #else
1230 CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_dstaddr);
1231 #endif // SANITIZER_LINUX
1232 CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_data);
1233 #endif
1234 
1235 #if SANITIZER_GLIBC || SANITIZER_ANDROID
1236 COMPILER_CHECK(sizeof(__sanitizer_struct_mallinfo) == sizeof(struct mallinfo));
1237 #endif
1238 
1239 #if !SANITIZER_ANDROID
1240 CHECK_TYPE_SIZE(timeb);
1241 CHECK_SIZE_AND_OFFSET(timeb, time);
1242 CHECK_SIZE_AND_OFFSET(timeb, millitm);
1243 CHECK_SIZE_AND_OFFSET(timeb, timezone);
1244 CHECK_SIZE_AND_OFFSET(timeb, dstflag);
1245 #endif
1246 
1247 CHECK_TYPE_SIZE(passwd);
1248 CHECK_SIZE_AND_OFFSET(passwd, pw_name);
1249 CHECK_SIZE_AND_OFFSET(passwd, pw_passwd);
1250 CHECK_SIZE_AND_OFFSET(passwd, pw_uid);
1251 CHECK_SIZE_AND_OFFSET(passwd, pw_gid);
1252 CHECK_SIZE_AND_OFFSET(passwd, pw_dir);
1253 CHECK_SIZE_AND_OFFSET(passwd, pw_shell);
1254 
1255 #if !SANITIZER_ANDROID
1256 CHECK_SIZE_AND_OFFSET(passwd, pw_gecos);
1257 #endif
1258 
1259 #if SANITIZER_APPLE
1260 CHECK_SIZE_AND_OFFSET(passwd, pw_change);
1261 CHECK_SIZE_AND_OFFSET(passwd, pw_expire);
1262 CHECK_SIZE_AND_OFFSET(passwd, pw_class);
1263 #endif
1264 
1265 
1266 CHECK_TYPE_SIZE(group);
1267 CHECK_SIZE_AND_OFFSET(group, gr_name);
1268 CHECK_SIZE_AND_OFFSET(group, gr_passwd);
1269 CHECK_SIZE_AND_OFFSET(group, gr_gid);
1270 CHECK_SIZE_AND_OFFSET(group, gr_mem);
1271 
1272 #if HAVE_RPC_XDR_H
1273 CHECK_TYPE_SIZE(XDR);
1274 CHECK_SIZE_AND_OFFSET(XDR, x_op);
1275 CHECK_SIZE_AND_OFFSET(XDR, x_ops);
1276 CHECK_SIZE_AND_OFFSET(XDR, x_public);
1277 CHECK_SIZE_AND_OFFSET(XDR, x_private);
1278 CHECK_SIZE_AND_OFFSET(XDR, x_base);
1279 CHECK_SIZE_AND_OFFSET(XDR, x_handy);
1280 COMPILER_CHECK(__sanitizer_XDR_ENCODE == XDR_ENCODE);
1281 COMPILER_CHECK(__sanitizer_XDR_DECODE == XDR_DECODE);
1282 COMPILER_CHECK(__sanitizer_XDR_FREE == XDR_FREE);
1283 #endif
1284 
1285 #if SANITIZER_GLIBC
1286 COMPILER_CHECK(sizeof(__sanitizer_FILE) <= sizeof(FILE));
1287 CHECK_SIZE_AND_OFFSET(FILE, _flags);
1288 CHECK_SIZE_AND_OFFSET(FILE, _IO_read_ptr);
1289 CHECK_SIZE_AND_OFFSET(FILE, _IO_read_end);
1290 CHECK_SIZE_AND_OFFSET(FILE, _IO_read_base);
1291 CHECK_SIZE_AND_OFFSET(FILE, _IO_write_ptr);
1292 CHECK_SIZE_AND_OFFSET(FILE, _IO_write_end);
1293 CHECK_SIZE_AND_OFFSET(FILE, _IO_write_base);
1294 CHECK_SIZE_AND_OFFSET(FILE, _IO_buf_base);
1295 CHECK_SIZE_AND_OFFSET(FILE, _IO_buf_end);
1296 CHECK_SIZE_AND_OFFSET(FILE, _IO_save_base);
1297 CHECK_SIZE_AND_OFFSET(FILE, _IO_backup_base);
1298 CHECK_SIZE_AND_OFFSET(FILE, _IO_save_end);
1299 CHECK_SIZE_AND_OFFSET(FILE, _markers);
1300 CHECK_SIZE_AND_OFFSET(FILE, _chain);
1301 CHECK_SIZE_AND_OFFSET(FILE, _fileno);
1302 
1303 COMPILER_CHECK(sizeof(__sanitizer__obstack_chunk) <= sizeof(_obstack_chunk));
1304 CHECK_SIZE_AND_OFFSET(_obstack_chunk, limit);
1305 CHECK_SIZE_AND_OFFSET(_obstack_chunk, prev);
1306 CHECK_TYPE_SIZE(obstack);
1307 CHECK_SIZE_AND_OFFSET(obstack, chunk_size);
1308 CHECK_SIZE_AND_OFFSET(obstack, chunk);
1309 CHECK_SIZE_AND_OFFSET(obstack, object_base);
1310 CHECK_SIZE_AND_OFFSET(obstack, next_free);
1311 
1312 CHECK_TYPE_SIZE(cookie_io_functions_t);
1313 CHECK_SIZE_AND_OFFSET(cookie_io_functions_t, read);
1314 CHECK_SIZE_AND_OFFSET(cookie_io_functions_t, write);
1315 CHECK_SIZE_AND_OFFSET(cookie_io_functions_t, seek);
1316 CHECK_SIZE_AND_OFFSET(cookie_io_functions_t, close);
1317 #endif  // SANITIZER_GLIBC
1318 
1319 #if SANITIZER_LINUX || SANITIZER_FREEBSD
1320 CHECK_TYPE_SIZE(sem_t);
1321 #endif
1322 
1323 #if SANITIZER_LINUX && defined(__arm__)
1324 COMPILER_CHECK(ARM_VFPREGS_SIZE == ARM_VFPREGS_SIZE_ASAN);
1325 #endif
1326 
1327 #endif // SANITIZER_LINUX || SANITIZER_FREEBSD || SANITIZER_APPLE
1328