libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cpp

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