compiler-rt/lib/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 #endif
  22
  23 // Must go after undef _FILE_OFFSET_BITS.
  24 #include "sanitizer_platform.h"
  25
  26 #if SANITIZER_LINUX || SANITIZER_MAC
  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_MAC
  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 #include <crypt.h>
 156 #endif  // SANITIZER_ANDROID
 157
 158 #include <link.h>
 159 #include <sys/vfs.h>
 160 #include <sys/epoll.h>
 161 #include <linux/capability.h>
 162 #else
 163 #include <fstab.h>
 164 #endif // SANITIZER_LINUX
 165
 166 #if SANITIZER_MAC
 167 #include <net/ethernet.h>
 168 #include <sys/filio.h>
 169 #include <sys/sockio.h>
 170 #endif
 171
 172 // Include these after system headers to avoid name clashes and ambiguities.
 173 #  include "sanitizer_common.h"
 174 #  include "sanitizer_internal_defs.h"
 175 #  include "sanitizer_platform_limits_posix.h"
 176
 177 namespace __sanitizer {
 178   unsigned struct_utsname_sz = sizeof(struct utsname);
 179   unsigned struct_stat_sz = sizeof(struct stat);
 180 #if !SANITIZER_IOS && !(SANITIZER_MAC && TARGET_CPU_ARM64)
 181   unsigned struct_stat64_sz = sizeof(struct stat64);
 182 #endif // !SANITIZER_IOS && !(SANITIZER_MAC && TARGET_CPU_ARM64)
 183   unsigned struct_rusage_sz = sizeof(struct rusage);
 184   unsigned struct_tm_sz = sizeof(struct tm);
 185   unsigned struct_passwd_sz = sizeof(struct passwd);
 186   unsigned struct_group_sz = sizeof(struct group);
 187   unsigned siginfo_t_sz = sizeof(siginfo_t);
 188   unsigned struct_sigaction_sz = sizeof(struct sigaction);
 189   unsigned struct_stack_t_sz = sizeof(stack_t);
 190   unsigned struct_itimerval_sz = sizeof(struct itimerval);
 191   unsigned pthread_t_sz = sizeof(pthread_t);
 192   unsigned pthread_mutex_t_sz = sizeof(pthread_mutex_t);
 193   unsigned pthread_cond_t_sz = sizeof(pthread_cond_t);
 194   unsigned pid_t_sz = sizeof(pid_t);
 195   unsigned timeval_sz = sizeof(timeval);
 196   unsigned uid_t_sz = sizeof(uid_t);
 197   unsigned gid_t_sz = sizeof(gid_t);
 198   unsigned mbstate_t_sz = sizeof(mbstate_t);
 199   unsigned sigset_t_sz = sizeof(sigset_t);
 200   unsigned struct_timezone_sz = sizeof(struct timezone);
 201   unsigned struct_tms_sz = sizeof(struct tms);
 202   unsigned struct_sigevent_sz = sizeof(struct sigevent);
 203   unsigned struct_sched_param_sz = sizeof(struct sched_param);
 204   unsigned struct_regex_sz = sizeof(regex_t);
 205   unsigned struct_regmatch_sz = sizeof(regmatch_t);
 206
 207 #if (SANITIZER_MAC && !TARGET_CPU_ARM64) && !SANITIZER_IOS
 208   unsigned struct_statfs64_sz = sizeof(struct statfs64);
 209 #endif // (SANITIZER_MAC && !TARGET_CPU_ARM64) && !SANITIZER_IOS
 210
 211 #if SANITIZER_GLIBC || SANITIZER_FREEBSD || SANITIZER_NETBSD || SANITIZER_MAC
 212   unsigned struct_fstab_sz = sizeof(struct fstab);
 213 #endif  // SANITIZER_GLIBC || SANITIZER_FREEBSD || SANITIZER_NETBSD ||
 214         // SANITIZER_MAC
 215 #if !SANITIZER_ANDROID
 216   unsigned struct_statfs_sz = sizeof(struct statfs);
 217   unsigned struct_sockaddr_sz = sizeof(struct sockaddr);
 218
 219   unsigned ucontext_t_sz(void *ctx) {
 220 #    if SANITIZER_GLIBC && SANITIZER_X64
 221     // See kernel arch/x86/kernel/fpu/signal.c for details.
 222     const auto *fpregs = static_cast<ucontext_t *>(ctx)->uc_mcontext.fpregs;
 223     // The member names differ across header versions, but the actual layout
 224     // is always the same.  So avoid using members, just use arithmetic.
 225     const uint32_t *after_xmm =
 226         reinterpret_cast<const uint32_t *>(fpregs + 1) - 24;
 227     if (after_xmm[12] == FP_XSTATE_MAGIC1)
 228       return reinterpret_cast<const char *>(fpregs) + after_xmm[13] -
 229              static_cast<const char *>(ctx);
 230 #    endif
 231     return sizeof(ucontext_t);
 232   }
 233 #  endif  // !SANITIZER_ANDROID
 234
 235 #  if SANITIZER_LINUX
 236   unsigned struct_epoll_event_sz = sizeof(struct epoll_event);
 237   unsigned struct_sysinfo_sz = sizeof(struct sysinfo);
 238   unsigned __user_cap_header_struct_sz =
 239       sizeof(struct __user_cap_header_struct);
 240   unsigned __user_cap_data_struct_sz = sizeof(struct __user_cap_data_struct);
 241   unsigned struct_new_utsname_sz = sizeof(struct new_utsname);
 242   unsigned struct_old_utsname_sz = sizeof(struct old_utsname);
 243   unsigned struct_oldold_utsname_sz = sizeof(struct oldold_utsname);
 244 #endif // SANITIZER_LINUX
 245
 246 #if SANITIZER_LINUX
 247   unsigned struct_rlimit_sz = sizeof(struct rlimit);
 248   unsigned struct_timespec_sz = sizeof(struct timespec);
 249   unsigned struct_utimbuf_sz = sizeof(struct utimbuf);
 250   unsigned struct_itimerspec_sz = sizeof(struct itimerspec);
 251 #endif // SANITIZER_LINUX
 252
 253 #if SANITIZER_LINUX && !SANITIZER_ANDROID
 254   // Use pre-computed size of struct ustat to avoid <sys/ustat.h> which
 255   // has been removed from glibc 2.28.
 256 #if defined(__aarch64__) || defined(__s390x__) || defined(__mips64) ||     \
 257     defined(__powerpc64__) || defined(__arch64__) || defined(__sparcv9) || \
 258     defined(__x86_64__) || SANITIZER_RISCV64
 259 #define SIZEOF_STRUCT_USTAT 32
 260 #    elif defined(__arm__) || defined(__i386__) || defined(__mips__) ||    \
 261         defined(__powerpc__) || defined(__s390__) || defined(__sparc__) || \
 262         defined(__hexagon__)
 263 #      define SIZEOF_STRUCT_USTAT 20
 264 #    else
 265 #      error Unknown size of struct ustat
 266 #    endif
 267   unsigned struct_ustat_sz = SIZEOF_STRUCT_USTAT;
 268   unsigned struct_rlimit64_sz = sizeof(struct rlimit64);
 269   unsigned struct_statvfs64_sz = sizeof(struct statvfs64);
 270   unsigned struct_crypt_data_sz = sizeof(struct crypt_data);
 271 #endif // SANITIZER_LINUX && !SANITIZER_ANDROID
 272
 273 #if SANITIZER_LINUX && !SANITIZER_ANDROID
 274   unsigned struct_timex_sz = sizeof(struct timex);
 275   unsigned struct_msqid_ds_sz = sizeof(struct msqid_ds);
 276   unsigned struct_mq_attr_sz = sizeof(struct mq_attr);
 277   unsigned struct_statvfs_sz = sizeof(struct statvfs);
 278 #endif // SANITIZER_LINUX && !SANITIZER_ANDROID
 279
 280   const uptr sig_ign = (uptr)SIG_IGN;
 281   const uptr sig_dfl = (uptr)SIG_DFL;
 282   const uptr sig_err = (uptr)SIG_ERR;
 283   const uptr sa_siginfo = (uptr)SA_SIGINFO;
 284
 285 #if SANITIZER_LINUX
 286   int e_tabsz = (int)E_TABSZ;
 287 #endif
 288
 289
 290 #if SANITIZER_LINUX && !SANITIZER_ANDROID
 291   unsigned struct_shminfo_sz = sizeof(struct shminfo);
 292   unsigned struct_shm_info_sz = sizeof(struct shm_info);
 293   int shmctl_ipc_stat = (int)IPC_STAT;
 294   int shmctl_ipc_info = (int)IPC_INFO;
 295   int shmctl_shm_info = (int)SHM_INFO;
 296   int shmctl_shm_stat = (int)SHM_STAT;
 297 #endif
 298
 299 #if !SANITIZER_MAC && !SANITIZER_FREEBSD
 300   unsigned struct_utmp_sz = sizeof(struct utmp);
 301 #endif
 302 #if !SANITIZER_ANDROID
 303   unsigned struct_utmpx_sz = sizeof(struct utmpx);
 304 #endif
 305
 306   int map_fixed = MAP_FIXED;
 307
 308   int af_inet = (int)AF_INET;
 309   int af_inet6 = (int)AF_INET6;
 310
 311   uptr __sanitizer_in_addr_sz(int af) {
 312     if (af == AF_INET)
 313       return sizeof(struct in_addr);
 314     else if (af == AF_INET6)
 315       return sizeof(struct in6_addr);
 316     else
 317       return 0;
 318   }
 319
 320 #if SANITIZER_LINUX
 321 unsigned struct_ElfW_Phdr_sz = sizeof(ElfW(Phdr));
 322 #elif SANITIZER_FREEBSD
 323 unsigned struct_ElfW_Phdr_sz = sizeof(Elf_Phdr);
 324 #endif
 325
 326 #if SANITIZER_GLIBC
 327   int glob_nomatch = GLOB_NOMATCH;
 328   int glob_altdirfunc = GLOB_ALTDIRFUNC;
 329 #endif
 330
 331 #  if !SANITIZER_ANDROID
 332   const int wordexp_wrde_dooffs = WRDE_DOOFFS;
 333 #  endif  // !SANITIZER_ANDROID
 334
 335 #if SANITIZER_LINUX && !SANITIZER_ANDROID &&                               \
 336     (defined(__i386) || defined(__x86_64) || defined(__mips64) ||          \
 337      defined(__powerpc64__) || defined(__aarch64__) || defined(__arm__) || \
 338      defined(__s390__) || SANITIZER_RISCV64)
 339 #if defined(__mips64) || defined(__powerpc64__) || defined(__arm__)
 340   unsigned struct_user_regs_struct_sz = sizeof(struct pt_regs);
 341   unsigned struct_user_fpregs_struct_sz = sizeof(elf_fpregset_t);
 342 #elif SANITIZER_RISCV64
 343   unsigned struct_user_regs_struct_sz = sizeof(struct user_regs_struct);
 344   unsigned struct_user_fpregs_struct_sz = sizeof(struct __riscv_q_ext_state);
 345 #elif defined(__aarch64__)
 346   unsigned struct_user_regs_struct_sz = sizeof(struct user_pt_regs);
 347   unsigned struct_user_fpregs_struct_sz = sizeof(struct user_fpsimd_state);
 348 #elif defined(__s390__)
 349   unsigned struct_user_regs_struct_sz = sizeof(struct _user_regs_struct);
 350   unsigned struct_user_fpregs_struct_sz = sizeof(struct _user_fpregs_struct);
 351 #else
 352   unsigned struct_user_regs_struct_sz = sizeof(struct user_regs_struct);
 353   unsigned struct_user_fpregs_struct_sz = sizeof(struct user_fpregs_struct);
 354 #endif // __mips64 || __powerpc64__ || __aarch64__
 355 #if defined(__x86_64) || defined(__mips64) || defined(__powerpc64__) || \
 356     defined(__aarch64__) || defined(__arm__) || defined(__s390__) ||    \
 357     SANITIZER_RISCV64
 358   unsigned struct_user_fpxregs_struct_sz = 0;
 359 #else
 360   unsigned struct_user_fpxregs_struct_sz = sizeof(struct user_fpxregs_struct);
 361 #endif // __x86_64 || __mips64 || __powerpc64__ || __aarch64__ || __arm__
 362 // || __s390__
 363 #ifdef __arm__
 364   unsigned struct_user_vfpregs_struct_sz = ARM_VFPREGS_SIZE;
 365 #else
 366   unsigned struct_user_vfpregs_struct_sz = 0;
 367 #endif
 368
 369   int ptrace_peektext = PTRACE_PEEKTEXT;
 370   int ptrace_peekdata = PTRACE_PEEKDATA;
 371   int ptrace_peekuser = PTRACE_PEEKUSER;
 372 #if (defined(PTRACE_GETREGS) && defined(PTRACE_SETREGS)) || \
 373     (defined(PT_GETREGS) && defined(PT_SETREGS))
 374   int ptrace_getregs = PTRACE_GETREGS;
 375   int ptrace_setregs = PTRACE_SETREGS;
 376 #else
 377   int ptrace_getregs = -1;
 378   int ptrace_setregs = -1;
 379 #endif
 380 #if (defined(PTRACE_GETFPREGS) && defined(PTRACE_SETFPREGS)) || \
 381     (defined(PT_GETFPREGS) && defined(PT_SETFPREGS))
 382   int ptrace_getfpregs = PTRACE_GETFPREGS;
 383   int ptrace_setfpregs = PTRACE_SETFPREGS;
 384 #else
 385   int ptrace_getfpregs = -1;
 386   int ptrace_setfpregs = -1;
 387 #endif
 388 #if (defined(PTRACE_GETFPXREGS) && defined(PTRACE_SETFPXREGS)) || \
 389     (defined(PT_GETFPXREGS) && defined(PT_SETFPXREGS))
 390   int ptrace_getfpxregs = PTRACE_GETFPXREGS;
 391   int ptrace_setfpxregs = PTRACE_SETFPXREGS;
 392 #else
 393   int ptrace_getfpxregs = -1;
 394   int ptrace_setfpxregs = -1;
 395 #endif // PTRACE_GETFPXREGS/PTRACE_SETFPXREGS
 396 #if defined(PTRACE_GETVFPREGS) && defined(PTRACE_SETVFPREGS)
 397   int ptrace_getvfpregs = PTRACE_GETVFPREGS;
 398   int ptrace_setvfpregs = PTRACE_SETVFPREGS;
 399 #else
 400   int ptrace_getvfpregs = -1;
 401   int ptrace_setvfpregs = -1;
 402 #endif
 403   int ptrace_geteventmsg = PTRACE_GETEVENTMSG;
 404 #if (defined(PTRACE_GETSIGINFO) && defined(PTRACE_SETSIGINFO)) ||              \
 405     (defined(PT_GETSIGINFO) && defined(PT_SETSIGINFO))
 406   int ptrace_getsiginfo = PTRACE_GETSIGINFO;
 407   int ptrace_setsiginfo = PTRACE_SETSIGINFO;
 408 #else
 409   int ptrace_getsiginfo = -1;
 410   int ptrace_setsiginfo = -1;
 411 #endif // PTRACE_GETSIGINFO/PTRACE_SETSIGINFO
 412 #if defined(PTRACE_GETREGSET) && defined(PTRACE_SETREGSET)
 413   int ptrace_getregset = PTRACE_GETREGSET;
 414   int ptrace_setregset = PTRACE_SETREGSET;
 415 #else
 416   int ptrace_getregset = -1;
 417   int ptrace_setregset = -1;
 418 #endif // PTRACE_GETREGSET/PTRACE_SETREGSET
 419 #endif
 420
 421   unsigned path_max = PATH_MAX;
 422
 423   // ioctl arguments
 424   unsigned struct_ifreq_sz = sizeof(struct ifreq);
 425   unsigned struct_termios_sz = sizeof(struct termios);
 426   unsigned struct_winsize_sz = sizeof(struct winsize);
 427
 428 #if SANITIZER_LINUX
 429   unsigned struct_arpreq_sz = sizeof(struct arpreq);
 430   unsigned struct_cdrom_msf_sz = sizeof(struct cdrom_msf);
 431   unsigned struct_cdrom_multisession_sz = sizeof(struct cdrom_multisession);
 432   unsigned struct_cdrom_read_audio_sz = sizeof(struct cdrom_read_audio);
 433   unsigned struct_cdrom_subchnl_sz = sizeof(struct cdrom_subchnl);
 434   unsigned struct_cdrom_ti_sz = sizeof(struct cdrom_ti);
 435   unsigned struct_cdrom_tocentry_sz = sizeof(struct cdrom_tocentry);
 436   unsigned struct_cdrom_tochdr_sz = sizeof(struct cdrom_tochdr);
 437   unsigned struct_cdrom_volctrl_sz = sizeof(struct cdrom_volctrl);
 438   unsigned struct_ff_effect_sz = sizeof(struct ff_effect);
 439   unsigned struct_floppy_drive_params_sz = sizeof(struct floppy_drive_params);
 440   unsigned struct_floppy_drive_struct_sz = sizeof(struct floppy_drive_struct);
 441   unsigned struct_floppy_fdc_state_sz = sizeof(struct floppy_fdc_state);
 442   unsigned struct_floppy_max_errors_sz = sizeof(struct floppy_max_errors);
 443   unsigned struct_floppy_raw_cmd_sz = sizeof(struct floppy_raw_cmd);
 444   unsigned struct_floppy_struct_sz = sizeof(struct floppy_struct);
 445   unsigned struct_floppy_write_errors_sz = sizeof(struct floppy_write_errors);
 446   unsigned struct_format_descr_sz = sizeof(struct format_descr);
 447   unsigned struct_hd_driveid_sz = sizeof(struct hd_driveid);
 448   unsigned struct_hd_geometry_sz = sizeof(struct hd_geometry);
 449   unsigned struct_input_absinfo_sz = sizeof(struct input_absinfo);
 450   unsigned struct_input_id_sz = sizeof(struct input_id);
 451   unsigned struct_mtpos_sz = sizeof(struct mtpos);
 452   unsigned struct_rtentry_sz = sizeof(struct rtentry);
 453 #if SANITIZER_GLIBC || SANITIZER_ANDROID
 454   unsigned struct_termio_sz = sizeof(struct termio);
 455 #endif
 456   unsigned struct_vt_consize_sz = sizeof(struct vt_consize);
 457   unsigned struct_vt_sizes_sz = sizeof(struct vt_sizes);
 458   unsigned struct_vt_stat_sz = sizeof(struct vt_stat);
 459 #endif // SANITIZER_LINUX
 460
 461 #if SANITIZER_LINUX
 462 #if SOUND_VERSION >= 0x040000
 463   unsigned struct_copr_buffer_sz = 0;
 464   unsigned struct_copr_debug_buf_sz = 0;
 465   unsigned struct_copr_msg_sz = 0;
 466 #else
 467   unsigned struct_copr_buffer_sz = sizeof(struct copr_buffer);
 468   unsigned struct_copr_debug_buf_sz = sizeof(struct copr_debug_buf);
 469   unsigned struct_copr_msg_sz = sizeof(struct copr_msg);
 470 #endif
 471   unsigned struct_midi_info_sz = sizeof(struct midi_info);
 472   unsigned struct_mtget_sz = sizeof(struct mtget);
 473   unsigned struct_mtop_sz = sizeof(struct mtop);
 474   unsigned struct_sbi_instrument_sz = sizeof(struct sbi_instrument);
 475   unsigned struct_seq_event_rec_sz = sizeof(struct seq_event_rec);
 476   unsigned struct_synth_info_sz = sizeof(struct synth_info);
 477   unsigned struct_vt_mode_sz = sizeof(struct vt_mode);
 478 #endif // SANITIZER_LINUX
 479
 480 #if SANITIZER_GLIBC
 481   unsigned struct_ax25_parms_struct_sz = sizeof(struct ax25_parms_struct);
 482 #if EV_VERSION > (0x010000)
 483   unsigned struct_input_keymap_entry_sz = sizeof(struct input_keymap_entry);
 484 #else
 485   unsigned struct_input_keymap_entry_sz = 0;
 486 #endif
 487   unsigned struct_ipx_config_data_sz = sizeof(struct ipx_config_data);
 488   unsigned struct_kbdiacrs_sz = sizeof(struct kbdiacrs);
 489   unsigned struct_kbentry_sz = sizeof(struct kbentry);
 490   unsigned struct_kbkeycode_sz = sizeof(struct kbkeycode);
 491   unsigned struct_kbsentry_sz = sizeof(struct kbsentry);
 492   unsigned struct_mtconfiginfo_sz = sizeof(struct mtconfiginfo);
 493   unsigned struct_nr_parms_struct_sz = sizeof(struct nr_parms_struct);
 494   unsigned struct_scc_modem_sz = sizeof(struct scc_modem);
 495   unsigned struct_scc_stat_sz = sizeof(struct scc_stat);
 496   unsigned struct_serial_multiport_struct_sz
 497       = sizeof(struct serial_multiport_struct);
 498   unsigned struct_serial_struct_sz = sizeof(struct serial_struct);
 499   unsigned struct_sockaddr_ax25_sz = sizeof(struct sockaddr_ax25);
 500   unsigned struct_unimapdesc_sz = sizeof(struct unimapdesc);
 501   unsigned struct_unimapinit_sz = sizeof(struct unimapinit);
 502
 503   unsigned struct_audio_buf_info_sz = sizeof(struct audio_buf_info);
 504   unsigned struct_ppp_stats_sz = sizeof(struct ppp_stats);
 505 #endif  // SANITIZER_GLIBC
 506
 507 #if !SANITIZER_ANDROID && !SANITIZER_MAC
 508   unsigned struct_sioc_sg_req_sz = sizeof(struct sioc_sg_req);
 509   unsigned struct_sioc_vif_req_sz = sizeof(struct sioc_vif_req);
 510 #endif
 511
 512   const unsigned long __sanitizer_bufsiz = BUFSIZ;
 513
 514   const unsigned IOCTL_NOT_PRESENT = 0;
 515
 516   unsigned IOCTL_FIOASYNC = FIOASYNC;
 517   unsigned IOCTL_FIOCLEX = FIOCLEX;
 518   unsigned IOCTL_FIOGETOWN = FIOGETOWN;
 519   unsigned IOCTL_FIONBIO = FIONBIO;
 520   unsigned IOCTL_FIONCLEX = FIONCLEX;
 521   unsigned IOCTL_FIOSETOWN = FIOSETOWN;
 522   unsigned IOCTL_SIOCADDMULTI = SIOCADDMULTI;
 523   unsigned IOCTL_SIOCATMARK = SIOCATMARK;
 524   unsigned IOCTL_SIOCDELMULTI = SIOCDELMULTI;
 525   unsigned IOCTL_SIOCGIFADDR = SIOCGIFADDR;
 526   unsigned IOCTL_SIOCGIFBRDADDR = SIOCGIFBRDADDR;
 527   unsigned IOCTL_SIOCGIFCONF = SIOCGIFCONF;
 528   unsigned IOCTL_SIOCGIFDSTADDR = SIOCGIFDSTADDR;
 529   unsigned IOCTL_SIOCGIFFLAGS = SIOCGIFFLAGS;
 530   unsigned IOCTL_SIOCGIFMETRIC = SIOCGIFMETRIC;
 531   unsigned IOCTL_SIOCGIFMTU = SIOCGIFMTU;
 532   unsigned IOCTL_SIOCGIFNETMASK = SIOCGIFNETMASK;
 533   unsigned IOCTL_SIOCGPGRP = SIOCGPGRP;
 534   unsigned IOCTL_SIOCSIFADDR = SIOCSIFADDR;
 535   unsigned IOCTL_SIOCSIFBRDADDR = SIOCSIFBRDADDR;
 536   unsigned IOCTL_SIOCSIFDSTADDR = SIOCSIFDSTADDR;
 537   unsigned IOCTL_SIOCSIFFLAGS = SIOCSIFFLAGS;
 538   unsigned IOCTL_SIOCSIFMETRIC = SIOCSIFMETRIC;
 539   unsigned IOCTL_SIOCSIFMTU = SIOCSIFMTU;
 540   unsigned IOCTL_SIOCSIFNETMASK = SIOCSIFNETMASK;
 541   unsigned IOCTL_SIOCSPGRP = SIOCSPGRP;
 542   unsigned IOCTL_TIOCCONS = TIOCCONS;
 543   unsigned IOCTL_TIOCEXCL = TIOCEXCL;
 544   unsigned IOCTL_TIOCGETD = TIOCGETD;
 545   unsigned IOCTL_TIOCGPGRP = TIOCGPGRP;
 546   unsigned IOCTL_TIOCGWINSZ = TIOCGWINSZ;
 547   unsigned IOCTL_TIOCMBIC = TIOCMBIC;
 548   unsigned IOCTL_TIOCMBIS = TIOCMBIS;
 549   unsigned IOCTL_TIOCMGET = TIOCMGET;
 550   unsigned IOCTL_TIOCMSET = TIOCMSET;
 551   unsigned IOCTL_TIOCNOTTY = TIOCNOTTY;
 552   unsigned IOCTL_TIOCNXCL = TIOCNXCL;
 553   unsigned IOCTL_TIOCOUTQ = TIOCOUTQ;
 554   unsigned IOCTL_TIOCPKT = TIOCPKT;
 555   unsigned IOCTL_TIOCSCTTY = TIOCSCTTY;
 556   unsigned IOCTL_TIOCSETD = TIOCSETD;
 557   unsigned IOCTL_TIOCSPGRP = TIOCSPGRP;
 558   unsigned IOCTL_TIOCSTI = TIOCSTI;
 559   unsigned IOCTL_TIOCSWINSZ = TIOCSWINSZ;
 560 #if SANITIZER_LINUX && !SANITIZER_ANDROID
 561   unsigned IOCTL_SIOCGETSGCNT = SIOCGETSGCNT;
 562   unsigned IOCTL_SIOCGETVIFCNT = SIOCGETVIFCNT;
 563 #endif
 564
 565 #if SANITIZER_LINUX
 566   unsigned IOCTL_EVIOCGABS = EVIOCGABS(0);
 567   unsigned IOCTL_EVIOCGBIT = EVIOCGBIT(0, 0);
 568   unsigned IOCTL_EVIOCGEFFECTS = EVIOCGEFFECTS;
 569   unsigned IOCTL_EVIOCGID = EVIOCGID;
 570   unsigned IOCTL_EVIOCGKEY = EVIOCGKEY(0);
 571   unsigned IOCTL_EVIOCGKEYCODE = EVIOCGKEYCODE;
 572   unsigned IOCTL_EVIOCGLED = EVIOCGLED(0);
 573   unsigned IOCTL_EVIOCGNAME = EVIOCGNAME(0);
 574   unsigned IOCTL_EVIOCGPHYS = EVIOCGPHYS(0);
 575   unsigned IOCTL_EVIOCGRAB = EVIOCGRAB;
 576   unsigned IOCTL_EVIOCGREP = EVIOCGREP;
 577   unsigned IOCTL_EVIOCGSND = EVIOCGSND(0);
 578   unsigned IOCTL_EVIOCGSW = EVIOCGSW(0);
 579   unsigned IOCTL_EVIOCGUNIQ = EVIOCGUNIQ(0);
 580   unsigned IOCTL_EVIOCGVERSION = EVIOCGVERSION;
 581   unsigned IOCTL_EVIOCRMFF = EVIOCRMFF;
 582   unsigned IOCTL_EVIOCSABS = EVIOCSABS(0);
 583   unsigned IOCTL_EVIOCSFF = EVIOCSFF;
 584   unsigned IOCTL_EVIOCSKEYCODE = EVIOCSKEYCODE;
 585   unsigned IOCTL_EVIOCSREP = EVIOCSREP;
 586   unsigned IOCTL_BLKFLSBUF = BLKFLSBUF;
 587   unsigned IOCTL_BLKGETSIZE = BLKGETSIZE;
 588   unsigned IOCTL_BLKRAGET = BLKRAGET;
 589   unsigned IOCTL_BLKRASET = BLKRASET;
 590   unsigned IOCTL_BLKROGET = BLKROGET;
 591   unsigned IOCTL_BLKROSET = BLKROSET;
 592   unsigned IOCTL_BLKRRPART = BLKRRPART;
 593   unsigned IOCTL_BLKFRASET = BLKFRASET;
 594   unsigned IOCTL_BLKFRAGET = BLKFRAGET;
 595   unsigned IOCTL_BLKSECTSET = BLKSECTSET;
 596   unsigned IOCTL_BLKSECTGET = BLKSECTGET;
 597   unsigned IOCTL_BLKSSZGET = BLKSSZGET;
 598   unsigned IOCTL_BLKBSZGET = BLKBSZGET;
 599   unsigned IOCTL_BLKBSZSET = BLKBSZSET;
 600   unsigned IOCTL_BLKGETSIZE64 = BLKGETSIZE64;
 601   unsigned IOCTL_CDROMAUDIOBUFSIZ = CDROMAUDIOBUFSIZ;
 602   unsigned IOCTL_CDROMEJECT = CDROMEJECT;
 603   unsigned IOCTL_CDROMEJECT_SW = CDROMEJECT_SW;
 604   unsigned IOCTL_CDROMMULTISESSION = CDROMMULTISESSION;
 605   unsigned IOCTL_CDROMPAUSE = CDROMPAUSE;
 606   unsigned IOCTL_CDROMPLAYMSF = CDROMPLAYMSF;
 607   unsigned IOCTL_CDROMPLAYTRKIND = CDROMPLAYTRKIND;
 608   unsigned IOCTL_CDROMREADAUDIO = CDROMREADAUDIO;
 609   unsigned IOCTL_CDROMREADCOOKED = CDROMREADCOOKED;
 610   unsigned IOCTL_CDROMREADMODE1 = CDROMREADMODE1;
 611   unsigned IOCTL_CDROMREADMODE2 = CDROMREADMODE2;
 612   unsigned IOCTL_CDROMREADRAW = CDROMREADRAW;
 613   unsigned IOCTL_CDROMREADTOCENTRY = CDROMREADTOCENTRY;
 614   unsigned IOCTL_CDROMREADTOCHDR = CDROMREADTOCHDR;
 615   unsigned IOCTL_CDROMRESET = CDROMRESET;
 616   unsigned IOCTL_CDROMRESUME = CDROMRESUME;
 617   unsigned IOCTL_CDROMSEEK = CDROMSEEK;
 618   unsigned IOCTL_CDROMSTART = CDROMSTART;
 619   unsigned IOCTL_CDROMSTOP = CDROMSTOP;
 620   unsigned IOCTL_CDROMSUBCHNL = CDROMSUBCHNL;
 621   unsigned IOCTL_CDROMVOLCTRL = CDROMVOLCTRL;
 622   unsigned IOCTL_CDROMVOLREAD = CDROMVOLREAD;
 623   unsigned IOCTL_CDROM_GET_UPC = CDROM_GET_UPC;
 624   unsigned IOCTL_FDCLRPRM = FDCLRPRM;
 625   unsigned IOCTL_FDDEFPRM = FDDEFPRM;
 626   unsigned IOCTL_FDFLUSH = FDFLUSH;
 627   unsigned IOCTL_FDFMTBEG = FDFMTBEG;
 628   unsigned IOCTL_FDFMTEND = FDFMTEND;
 629   unsigned IOCTL_FDFMTTRK = FDFMTTRK;
 630   unsigned IOCTL_FDGETDRVPRM = FDGETDRVPRM;
 631   unsigned IOCTL_FDGETDRVSTAT = FDGETDRVSTAT;
 632   unsigned IOCTL_FDGETDRVTYP = FDGETDRVTYP;
 633   unsigned IOCTL_FDGETFDCSTAT = FDGETFDCSTAT;
 634   unsigned IOCTL_FDGETMAXERRS = FDGETMAXERRS;
 635   unsigned IOCTL_FDGETPRM = FDGETPRM;
 636   unsigned IOCTL_FDMSGOFF = FDMSGOFF;
 637   unsigned IOCTL_FDMSGON = FDMSGON;
 638   unsigned IOCTL_FDPOLLDRVSTAT = FDPOLLDRVSTAT;
 639   unsigned IOCTL_FDRAWCMD = FDRAWCMD;
 640   unsigned IOCTL_FDRESET = FDRESET;
 641   unsigned IOCTL_FDSETDRVPRM = FDSETDRVPRM;
 642   unsigned IOCTL_FDSETEMSGTRESH = FDSETEMSGTRESH;
 643   unsigned IOCTL_FDSETMAXERRS = FDSETMAXERRS;
 644   unsigned IOCTL_FDSETPRM = FDSETPRM;
 645   unsigned IOCTL_FDTWADDLE = FDTWADDLE;
 646   unsigned IOCTL_FDWERRORCLR = FDWERRORCLR;
 647   unsigned IOCTL_FDWERRORGET = FDWERRORGET;
 648   unsigned IOCTL_HDIO_DRIVE_CMD = HDIO_DRIVE_CMD;
 649   unsigned IOCTL_HDIO_GETGEO = HDIO_GETGEO;
 650   unsigned IOCTL_HDIO_GET_32BIT = HDIO_GET_32BIT;
 651   unsigned IOCTL_HDIO_GET_DMA = HDIO_GET_DMA;
 652   unsigned IOCTL_HDIO_GET_IDENTITY = HDIO_GET_IDENTITY;
 653   unsigned IOCTL_HDIO_GET_KEEPSETTINGS = HDIO_GET_KEEPSETTINGS;
 654   unsigned IOCTL_HDIO_GET_MULTCOUNT = HDIO_GET_MULTCOUNT;
 655   unsigned IOCTL_HDIO_GET_NOWERR = HDIO_GET_NOWERR;
 656   unsigned IOCTL_HDIO_GET_UNMASKINTR = HDIO_GET_UNMASKINTR;
 657   unsigned IOCTL_HDIO_SET_32BIT = HDIO_SET_32BIT;
 658   unsigned IOCTL_HDIO_SET_DMA = HDIO_SET_DMA;
 659   unsigned IOCTL_HDIO_SET_KEEPSETTINGS = HDIO_SET_KEEPSETTINGS;
 660   unsigned IOCTL_HDIO_SET_MULTCOUNT = HDIO_SET_MULTCOUNT;
 661   unsigned IOCTL_HDIO_SET_NOWERR = HDIO_SET_NOWERR;
 662   unsigned IOCTL_HDIO_SET_UNMASKINTR = HDIO_SET_UNMASKINTR;
 663   unsigned IOCTL_MTIOCPOS = MTIOCPOS;
 664   unsigned IOCTL_PPPIOCGASYNCMAP = PPPIOCGASYNCMAP;
 665   unsigned IOCTL_PPPIOCGDEBUG = PPPIOCGDEBUG;
 666   unsigned IOCTL_PPPIOCGFLAGS = PPPIOCGFLAGS;
 667   unsigned IOCTL_PPPIOCGUNIT = PPPIOCGUNIT;
 668   unsigned IOCTL_PPPIOCGXASYNCMAP = PPPIOCGXASYNCMAP;
 669   unsigned IOCTL_PPPIOCSASYNCMAP = PPPIOCSASYNCMAP;
 670   unsigned IOCTL_PPPIOCSDEBUG = PPPIOCSDEBUG;
 671   unsigned IOCTL_PPPIOCSFLAGS = PPPIOCSFLAGS;
 672   unsigned IOCTL_PPPIOCSMAXCID = PPPIOCSMAXCID;
 673   unsigned IOCTL_PPPIOCSMRU = PPPIOCSMRU;
 674   unsigned IOCTL_PPPIOCSXASYNCMAP = PPPIOCSXASYNCMAP;
 675   unsigned IOCTL_SIOCADDRT = SIOCADDRT;
 676   unsigned IOCTL_SIOCDARP = SIOCDARP;
 677   unsigned IOCTL_SIOCDELRT = SIOCDELRT;
 678   unsigned IOCTL_SIOCDRARP = SIOCDRARP;
 679   unsigned IOCTL_SIOCGARP = SIOCGARP;
 680   unsigned IOCTL_SIOCGIFENCAP = SIOCGIFENCAP;
 681   unsigned IOCTL_SIOCGIFHWADDR = SIOCGIFHWADDR;
 682   unsigned IOCTL_SIOCGIFMAP = SIOCGIFMAP;
 683   unsigned IOCTL_SIOCGIFMEM = SIOCGIFMEM;
 684   unsigned IOCTL_SIOCGIFNAME = SIOCGIFNAME;
 685   unsigned IOCTL_SIOCGIFSLAVE = SIOCGIFSLAVE;
 686   unsigned IOCTL_SIOCGRARP = SIOCGRARP;
 687   unsigned IOCTL_SIOCGSTAMP = SIOCGSTAMP;
 688   unsigned IOCTL_SIOCSARP = SIOCSARP;
 689   unsigned IOCTL_SIOCSIFENCAP = SIOCSIFENCAP;
 690   unsigned IOCTL_SIOCSIFHWADDR = SIOCSIFHWADDR;
 691   unsigned IOCTL_SIOCSIFLINK = SIOCSIFLINK;
 692   unsigned IOCTL_SIOCSIFMAP = SIOCSIFMAP;
 693   unsigned IOCTL_SIOCSIFMEM = SIOCSIFMEM;
 694   unsigned IOCTL_SIOCSIFSLAVE = SIOCSIFSLAVE;
 695   unsigned IOCTL_SIOCSRARP = SIOCSRARP;
 696 # if SOUND_VERSION >= 0x040000
 697   unsigned IOCTL_SNDCTL_COPR_HALT = IOCTL_NOT_PRESENT;
 698   unsigned IOCTL_SNDCTL_COPR_LOAD = IOCTL_NOT_PRESENT;
 699   unsigned IOCTL_SNDCTL_COPR_RCODE = IOCTL_NOT_PRESENT;
 700   unsigned IOCTL_SNDCTL_COPR_RCVMSG = IOCTL_NOT_PRESENT;
 701   unsigned IOCTL_SNDCTL_COPR_RDATA = IOCTL_NOT_PRESENT;
 702   unsigned IOCTL_SNDCTL_COPR_RESET = IOCTL_NOT_PRESENT;
 703   unsigned IOCTL_SNDCTL_COPR_RUN = IOCTL_NOT_PRESENT;
 704   unsigned IOCTL_SNDCTL_COPR_SENDMSG = IOCTL_NOT_PRESENT;
 705   unsigned IOCTL_SNDCTL_COPR_WCODE = IOCTL_NOT_PRESENT;
 706   unsigned IOCTL_SNDCTL_COPR_WDATA = IOCTL_NOT_PRESENT;
 707   unsigned IOCTL_SOUND_PCM_READ_BITS = IOCTL_NOT_PRESENT;
 708   unsigned IOCTL_SOUND_PCM_READ_CHANNELS = IOCTL_NOT_PRESENT;
 709   unsigned IOCTL_SOUND_PCM_READ_FILTER = IOCTL_NOT_PRESENT;
 710   unsigned IOCTL_SOUND_PCM_READ_RATE = IOCTL_NOT_PRESENT;
 711   unsigned IOCTL_SOUND_PCM_WRITE_CHANNELS = IOCTL_NOT_PRESENT;
 712   unsigned IOCTL_SOUND_PCM_WRITE_FILTER = IOCTL_NOT_PRESENT;
 713 # else  // SOUND_VERSION
 714   unsigned IOCTL_SNDCTL_COPR_HALT = SNDCTL_COPR_HALT;
 715   unsigned IOCTL_SNDCTL_COPR_LOAD = SNDCTL_COPR_LOAD;
 716   unsigned IOCTL_SNDCTL_COPR_RCODE = SNDCTL_COPR_RCODE;
 717   unsigned IOCTL_SNDCTL_COPR_RCVMSG = SNDCTL_COPR_RCVMSG;
 718   unsigned IOCTL_SNDCTL_COPR_RDATA = SNDCTL_COPR_RDATA;
 719   unsigned IOCTL_SNDCTL_COPR_RESET = SNDCTL_COPR_RESET;
 720   unsigned IOCTL_SNDCTL_COPR_RUN = SNDCTL_COPR_RUN;
 721   unsigned IOCTL_SNDCTL_COPR_SENDMSG = SNDCTL_COPR_SENDMSG;
 722   unsigned IOCTL_SNDCTL_COPR_WCODE = SNDCTL_COPR_WCODE;
 723   unsigned IOCTL_SNDCTL_COPR_WDATA = SNDCTL_COPR_WDATA;
 724   unsigned IOCTL_SOUND_PCM_READ_BITS = SOUND_PCM_READ_BITS;
 725   unsigned IOCTL_SOUND_PCM_READ_CHANNELS = SOUND_PCM_READ_CHANNELS;
 726   unsigned IOCTL_SOUND_PCM_READ_FILTER = SOUND_PCM_READ_FILTER;
 727   unsigned IOCTL_SOUND_PCM_READ_RATE = SOUND_PCM_READ_RATE;
 728   unsigned IOCTL_SOUND_PCM_WRITE_CHANNELS = SOUND_PCM_WRITE_CHANNELS;
 729   unsigned IOCTL_SOUND_PCM_WRITE_FILTER = SOUND_PCM_WRITE_FILTER;
 730 #endif // SOUND_VERSION
 731   unsigned IOCTL_TCFLSH = TCFLSH;
 732   unsigned IOCTL_TCGETA = TCGETA;
 733   unsigned IOCTL_TCGETS = TCGETS;
 734   unsigned IOCTL_TCSBRK = TCSBRK;
 735   unsigned IOCTL_TCSBRKP = TCSBRKP;
 736   unsigned IOCTL_TCSETA = TCSETA;
 737   unsigned IOCTL_TCSETAF = TCSETAF;
 738   unsigned IOCTL_TCSETAW = TCSETAW;
 739   unsigned IOCTL_TCSETS = TCSETS;
 740   unsigned IOCTL_TCSETSF = TCSETSF;
 741   unsigned IOCTL_TCSETSW = TCSETSW;
 742   unsigned IOCTL_TCXONC = TCXONC;
 743   unsigned IOCTL_TIOCGLCKTRMIOS = TIOCGLCKTRMIOS;
 744   unsigned IOCTL_TIOCGSOFTCAR = TIOCGSOFTCAR;
 745   unsigned IOCTL_TIOCINQ = TIOCINQ;
 746   unsigned IOCTL_TIOCLINUX = TIOCLINUX;
 747   unsigned IOCTL_TIOCSERCONFIG = TIOCSERCONFIG;
 748   unsigned IOCTL_TIOCSERGETLSR = TIOCSERGETLSR;
 749   unsigned IOCTL_TIOCSERGWILD = TIOCSERGWILD;
 750   unsigned IOCTL_TIOCSERSWILD = TIOCSERSWILD;
 751   unsigned IOCTL_TIOCSLCKTRMIOS = TIOCSLCKTRMIOS;
 752   unsigned IOCTL_TIOCSSOFTCAR = TIOCSSOFTCAR;
 753   unsigned IOCTL_VT_DISALLOCATE = VT_DISALLOCATE;
 754   unsigned IOCTL_VT_GETSTATE = VT_GETSTATE;
 755   unsigned IOCTL_VT_RESIZE = VT_RESIZE;
 756   unsigned IOCTL_VT_RESIZEX = VT_RESIZEX;
 757   unsigned IOCTL_VT_SENDSIG = VT_SENDSIG;
 758   unsigned IOCTL_MTIOCGET = MTIOCGET;
 759   unsigned IOCTL_MTIOCTOP = MTIOCTOP;
 760   unsigned IOCTL_SNDCTL_DSP_GETBLKSIZE = SNDCTL_DSP_GETBLKSIZE;
 761   unsigned IOCTL_SNDCTL_DSP_GETFMTS = SNDCTL_DSP_GETFMTS;
 762   unsigned IOCTL_SNDCTL_DSP_NONBLOCK = SNDCTL_DSP_NONBLOCK;
 763   unsigned IOCTL_SNDCTL_DSP_POST = SNDCTL_DSP_POST;
 764   unsigned IOCTL_SNDCTL_DSP_RESET = SNDCTL_DSP_RESET;
 765   unsigned IOCTL_SNDCTL_DSP_SETFMT = SNDCTL_DSP_SETFMT;
 766   unsigned IOCTL_SNDCTL_DSP_SETFRAGMENT = SNDCTL_DSP_SETFRAGMENT;
 767   unsigned IOCTL_SNDCTL_DSP_SPEED = SNDCTL_DSP_SPEED;
 768   unsigned IOCTL_SNDCTL_DSP_STEREO = SNDCTL_DSP_STEREO;
 769   unsigned IOCTL_SNDCTL_DSP_SUBDIVIDE = SNDCTL_DSP_SUBDIVIDE;
 770   unsigned IOCTL_SNDCTL_DSP_SYNC = SNDCTL_DSP_SYNC;
 771   unsigned IOCTL_SNDCTL_FM_4OP_ENABLE = SNDCTL_FM_4OP_ENABLE;
 772   unsigned IOCTL_SNDCTL_FM_LOAD_INSTR = SNDCTL_FM_LOAD_INSTR;
 773   unsigned IOCTL_SNDCTL_MIDI_INFO = SNDCTL_MIDI_INFO;
 774   unsigned IOCTL_SNDCTL_MIDI_PRETIME = SNDCTL_MIDI_PRETIME;
 775   unsigned IOCTL_SNDCTL_SEQ_CTRLRATE = SNDCTL_SEQ_CTRLRATE;
 776   unsigned IOCTL_SNDCTL_SEQ_GETINCOUNT = SNDCTL_SEQ_GETINCOUNT;
 777   unsigned IOCTL_SNDCTL_SEQ_GETOUTCOUNT = SNDCTL_SEQ_GETOUTCOUNT;
 778   unsigned IOCTL_SNDCTL_SEQ_NRMIDIS = SNDCTL_SEQ_NRMIDIS;
 779   unsigned IOCTL_SNDCTL_SEQ_NRSYNTHS = SNDCTL_SEQ_NRSYNTHS;
 780   unsigned IOCTL_SNDCTL_SEQ_OUTOFBAND = SNDCTL_SEQ_OUTOFBAND;
 781   unsigned IOCTL_SNDCTL_SEQ_PANIC = SNDCTL_SEQ_PANIC;
 782   unsigned IOCTL_SNDCTL_SEQ_PERCMODE = SNDCTL_SEQ_PERCMODE;
 783   unsigned IOCTL_SNDCTL_SEQ_RESET = SNDCTL_SEQ_RESET;
 784   unsigned IOCTL_SNDCTL_SEQ_RESETSAMPLES = SNDCTL_SEQ_RESETSAMPLES;
 785   unsigned IOCTL_SNDCTL_SEQ_SYNC = SNDCTL_SEQ_SYNC;
 786   unsigned IOCTL_SNDCTL_SEQ_TESTMIDI = SNDCTL_SEQ_TESTMIDI;
 787   unsigned IOCTL_SNDCTL_SEQ_THRESHOLD = SNDCTL_SEQ_THRESHOLD;
 788   unsigned IOCTL_SNDCTL_SYNTH_INFO = SNDCTL_SYNTH_INFO;
 789   unsigned IOCTL_SNDCTL_SYNTH_MEMAVL = SNDCTL_SYNTH_MEMAVL;
 790   unsigned IOCTL_SNDCTL_TMR_CONTINUE = SNDCTL_TMR_CONTINUE;
 791   unsigned IOCTL_SNDCTL_TMR_METRONOME = SNDCTL_TMR_METRONOME;
 792   unsigned IOCTL_SNDCTL_TMR_SELECT = SNDCTL_TMR_SELECT;
 793   unsigned IOCTL_SNDCTL_TMR_SOURCE = SNDCTL_TMR_SOURCE;
 794   unsigned IOCTL_SNDCTL_TMR_START = SNDCTL_TMR_START;
 795   unsigned IOCTL_SNDCTL_TMR_STOP = SNDCTL_TMR_STOP;
 796   unsigned IOCTL_SNDCTL_TMR_TEMPO = SNDCTL_TMR_TEMPO;
 797   unsigned IOCTL_SNDCTL_TMR_TIMEBASE = SNDCTL_TMR_TIMEBASE;
 798   unsigned IOCTL_SOUND_MIXER_READ_ALTPCM = SOUND_MIXER_READ_ALTPCM;
 799   unsigned IOCTL_SOUND_MIXER_READ_BASS = SOUND_MIXER_READ_BASS;
 800   unsigned IOCTL_SOUND_MIXER_READ_CAPS = SOUND_MIXER_READ_CAPS;
 801   unsigned IOCTL_SOUND_MIXER_READ_CD = SOUND_MIXER_READ_CD;
 802   unsigned IOCTL_SOUND_MIXER_READ_DEVMASK = SOUND_MIXER_READ_DEVMASK;
 803   unsigned IOCTL_SOUND_MIXER_READ_ENHANCE = SOUND_MIXER_READ_ENHANCE;
 804   unsigned IOCTL_SOUND_MIXER_READ_IGAIN = SOUND_MIXER_READ_IGAIN;
 805   unsigned IOCTL_SOUND_MIXER_READ_IMIX = SOUND_MIXER_READ_IMIX;
 806   unsigned IOCTL_SOUND_MIXER_READ_LINE = SOUND_MIXER_READ_LINE;
 807   unsigned IOCTL_SOUND_MIXER_READ_LINE1 = SOUND_MIXER_READ_LINE1;
 808   unsigned IOCTL_SOUND_MIXER_READ_LINE2 = SOUND_MIXER_READ_LINE2;
 809   unsigned IOCTL_SOUND_MIXER_READ_LINE3 = SOUND_MIXER_READ_LINE3;
 810   unsigned IOCTL_SOUND_MIXER_READ_LOUD = SOUND_MIXER_READ_LOUD;
 811   unsigned IOCTL_SOUND_MIXER_READ_MIC = SOUND_MIXER_READ_MIC;
 812   unsigned IOCTL_SOUND_MIXER_READ_MUTE = SOUND_MIXER_READ_MUTE;
 813   unsigned IOCTL_SOUND_MIXER_READ_OGAIN = SOUND_MIXER_READ_OGAIN;
 814   unsigned IOCTL_SOUND_MIXER_READ_PCM = SOUND_MIXER_READ_PCM;
 815   unsigned IOCTL_SOUND_MIXER_READ_RECLEV = SOUND_MIXER_READ_RECLEV;
 816   unsigned IOCTL_SOUND_MIXER_READ_RECMASK = SOUND_MIXER_READ_RECMASK;
 817   unsigned IOCTL_SOUND_MIXER_READ_RECSRC = SOUND_MIXER_READ_RECSRC;
 818   unsigned IOCTL_SOUND_MIXER_READ_SPEAKER = SOUND_MIXER_READ_SPEAKER;
 819   unsigned IOCTL_SOUND_MIXER_READ_STEREODEVS = SOUND_MIXER_READ_STEREODEVS;
 820   unsigned IOCTL_SOUND_MIXER_READ_SYNTH = SOUND_MIXER_READ_SYNTH;
 821   unsigned IOCTL_SOUND_MIXER_READ_TREBLE = SOUND_MIXER_READ_TREBLE;
 822   unsigned IOCTL_SOUND_MIXER_READ_VOLUME = SOUND_MIXER_READ_VOLUME;
 823   unsigned IOCTL_SOUND_MIXER_WRITE_ALTPCM = SOUND_MIXER_WRITE_ALTPCM;
 824   unsigned IOCTL_SOUND_MIXER_WRITE_BASS = SOUND_MIXER_WRITE_BASS;
 825   unsigned IOCTL_SOUND_MIXER_WRITE_CD = SOUND_MIXER_WRITE_CD;
 826   unsigned IOCTL_SOUND_MIXER_WRITE_ENHANCE = SOUND_MIXER_WRITE_ENHANCE;
 827   unsigned IOCTL_SOUND_MIXER_WRITE_IGAIN = SOUND_MIXER_WRITE_IGAIN;
 828   unsigned IOCTL_SOUND_MIXER_WRITE_IMIX = SOUND_MIXER_WRITE_IMIX;
 829   unsigned IOCTL_SOUND_MIXER_WRITE_LINE = SOUND_MIXER_WRITE_LINE;
 830   unsigned IOCTL_SOUND_MIXER_WRITE_LINE1 = SOUND_MIXER_WRITE_LINE1;
 831   unsigned IOCTL_SOUND_MIXER_WRITE_LINE2 = SOUND_MIXER_WRITE_LINE2;
 832   unsigned IOCTL_SOUND_MIXER_WRITE_LINE3 = SOUND_MIXER_WRITE_LINE3;
 833   unsigned IOCTL_SOUND_MIXER_WRITE_LOUD = SOUND_MIXER_WRITE_LOUD;
 834   unsigned IOCTL_SOUND_MIXER_WRITE_MIC = SOUND_MIXER_WRITE_MIC;
 835   unsigned IOCTL_SOUND_MIXER_WRITE_MUTE = SOUND_MIXER_WRITE_MUTE;
 836   unsigned IOCTL_SOUND_MIXER_WRITE_OGAIN = SOUND_MIXER_WRITE_OGAIN;
 837   unsigned IOCTL_SOUND_MIXER_WRITE_PCM = SOUND_MIXER_WRITE_PCM;
 838   unsigned IOCTL_SOUND_MIXER_WRITE_RECLEV = SOUND_MIXER_WRITE_RECLEV;
 839   unsigned IOCTL_SOUND_MIXER_WRITE_RECSRC = SOUND_MIXER_WRITE_RECSRC;
 840   unsigned IOCTL_SOUND_MIXER_WRITE_SPEAKER = SOUND_MIXER_WRITE_SPEAKER;
 841   unsigned IOCTL_SOUND_MIXER_WRITE_SYNTH = SOUND_MIXER_WRITE_SYNTH;
 842   unsigned IOCTL_SOUND_MIXER_WRITE_TREBLE = SOUND_MIXER_WRITE_TREBLE;
 843   unsigned IOCTL_SOUND_MIXER_WRITE_VOLUME = SOUND_MIXER_WRITE_VOLUME;
 844   unsigned IOCTL_VT_ACTIVATE = VT_ACTIVATE;
 845   unsigned IOCTL_VT_GETMODE = VT_GETMODE;
 846   unsigned IOCTL_VT_OPENQRY = VT_OPENQRY;
 847   unsigned IOCTL_VT_RELDISP = VT_RELDISP;
 848   unsigned IOCTL_VT_SETMODE = VT_SETMODE;
 849   unsigned IOCTL_VT_WAITACTIVE = VT_WAITACTIVE;
 850 #endif // SANITIZER_LINUX
 851
 852 #if SANITIZER_LINUX && !SANITIZER_ANDROID
 853   unsigned IOCTL_EQL_EMANCIPATE = EQL_EMANCIPATE;
 854   unsigned IOCTL_EQL_ENSLAVE = EQL_ENSLAVE;
 855   unsigned IOCTL_EQL_GETMASTRCFG = EQL_GETMASTRCFG;
 856   unsigned IOCTL_EQL_GETSLAVECFG = EQL_GETSLAVECFG;
 857   unsigned IOCTL_EQL_SETMASTRCFG = EQL_SETMASTRCFG;
 858   unsigned IOCTL_EQL_SETSLAVECFG = EQL_SETSLAVECFG;
 859 #if EV_VERSION > (0x010000)
 860   unsigned IOCTL_EVIOCGKEYCODE_V2 = EVIOCGKEYCODE_V2;
 861   unsigned IOCTL_EVIOCGPROP = EVIOCGPROP(0);
 862   unsigned IOCTL_EVIOCSKEYCODE_V2 = EVIOCSKEYCODE_V2;
 863 #else
 864   unsigned IOCTL_EVIOCGKEYCODE_V2 = IOCTL_NOT_PRESENT;
 865   unsigned IOCTL_EVIOCGPROP = IOCTL_NOT_PRESENT;
 866   unsigned IOCTL_EVIOCSKEYCODE_V2 = IOCTL_NOT_PRESENT;
 867 #endif
 868   unsigned IOCTL_FS_IOC_GETFLAGS = FS_IOC_GETFLAGS;
 869   unsigned IOCTL_FS_IOC_GETVERSION = FS_IOC_GETVERSION;
 870   unsigned IOCTL_FS_IOC_SETFLAGS = FS_IOC_SETFLAGS;
 871   unsigned IOCTL_FS_IOC_SETVERSION = FS_IOC_SETVERSION;
 872   unsigned IOCTL_GIO_CMAP = GIO_CMAP;
 873   unsigned IOCTL_GIO_FONT = GIO_FONT;
 874   unsigned IOCTL_GIO_UNIMAP = GIO_UNIMAP;
 875   unsigned IOCTL_GIO_UNISCRNMAP = GIO_UNISCRNMAP;
 876   unsigned IOCTL_KDADDIO = KDADDIO;
 877   unsigned IOCTL_KDDELIO = KDDELIO;
 878   unsigned IOCTL_KDGETKEYCODE = KDGETKEYCODE;
 879   unsigned IOCTL_KDGKBDIACR = KDGKBDIACR;
 880   unsigned IOCTL_KDGKBENT = KDGKBENT;
 881   unsigned IOCTL_KDGKBLED = KDGKBLED;
 882   unsigned IOCTL_KDGKBMETA = KDGKBMETA;
 883   unsigned IOCTL_KDGKBSENT = KDGKBSENT;
 884   unsigned IOCTL_KDMAPDISP = KDMAPDISP;
 885   unsigned IOCTL_KDSETKEYCODE = KDSETKEYCODE;
 886   unsigned IOCTL_KDSIGACCEPT = KDSIGACCEPT;
 887   unsigned IOCTL_KDSKBDIACR = KDSKBDIACR;
 888   unsigned IOCTL_KDSKBENT = KDSKBENT;
 889   unsigned IOCTL_KDSKBLED = KDSKBLED;
 890   unsigned IOCTL_KDSKBMETA = KDSKBMETA;
 891   unsigned IOCTL_KDSKBSENT = KDSKBSENT;
 892   unsigned IOCTL_KDUNMAPDISP = KDUNMAPDISP;
 893   unsigned IOCTL_LPABORT = LPABORT;
 894   unsigned IOCTL_LPABORTOPEN = LPABORTOPEN;
 895   unsigned IOCTL_LPCAREFUL = LPCAREFUL;
 896   unsigned IOCTL_LPCHAR = LPCHAR;
 897   unsigned IOCTL_LPGETIRQ = LPGETIRQ;
 898   unsigned IOCTL_LPGETSTATUS = LPGETSTATUS;
 899   unsigned IOCTL_LPRESET = LPRESET;
 900   unsigned IOCTL_LPSETIRQ = LPSETIRQ;
 901   unsigned IOCTL_LPTIME = LPTIME;
 902   unsigned IOCTL_LPWAIT = LPWAIT;
 903   unsigned IOCTL_MTIOCGETCONFIG = MTIOCGETCONFIG;
 904   unsigned IOCTL_MTIOCSETCONFIG = MTIOCSETCONFIG;
 905   unsigned IOCTL_PIO_CMAP = PIO_CMAP;
 906   unsigned IOCTL_PIO_FONT = PIO_FONT;
 907   unsigned IOCTL_PIO_UNIMAP = PIO_UNIMAP;
 908   unsigned IOCTL_PIO_UNIMAPCLR = PIO_UNIMAPCLR;
 909   unsigned IOCTL_PIO_UNISCRNMAP = PIO_UNISCRNMAP;
 910 #if SANITIZER_GLIBC
 911   unsigned IOCTL_SCSI_IOCTL_GET_IDLUN = SCSI_IOCTL_GET_IDLUN;
 912   unsigned IOCTL_SCSI_IOCTL_PROBE_HOST = SCSI_IOCTL_PROBE_HOST;
 913   unsigned IOCTL_SCSI_IOCTL_TAGGED_DISABLE = SCSI_IOCTL_TAGGED_DISABLE;
 914   unsigned IOCTL_SCSI_IOCTL_TAGGED_ENABLE = SCSI_IOCTL_TAGGED_ENABLE;
 915   unsigned IOCTL_SIOCAIPXITFCRT = SIOCAIPXITFCRT;
 916   unsigned IOCTL_SIOCAIPXPRISLT = SIOCAIPXPRISLT;
 917   unsigned IOCTL_SIOCAX25ADDUID = SIOCAX25ADDUID;
 918   unsigned IOCTL_SIOCAX25DELUID = SIOCAX25DELUID;
 919   unsigned IOCTL_SIOCAX25GETPARMS = SIOCAX25GETPARMS;
 920   unsigned IOCTL_SIOCAX25GETUID = SIOCAX25GETUID;
 921   unsigned IOCTL_SIOCAX25NOUID = SIOCAX25NOUID;
 922   unsigned IOCTL_SIOCAX25SETPARMS = SIOCAX25SETPARMS;
 923   unsigned IOCTL_SIOCDEVPLIP = SIOCDEVPLIP;
 924   unsigned IOCTL_SIOCIPXCFGDATA = SIOCIPXCFGDATA;
 925   unsigned IOCTL_SIOCNRDECOBS = SIOCNRDECOBS;
 926   unsigned IOCTL_SIOCNRGETPARMS = SIOCNRGETPARMS;
 927   unsigned IOCTL_SIOCNRRTCTL = SIOCNRRTCTL;
 928   unsigned IOCTL_SIOCNRSETPARMS = SIOCNRSETPARMS;
 929 #endif
 930   unsigned IOCTL_TIOCGSERIAL = TIOCGSERIAL;
 931   unsigned IOCTL_TIOCSERGETMULTI = TIOCSERGETMULTI;
 932   unsigned IOCTL_TIOCSERSETMULTI = TIOCSERSETMULTI;
 933   unsigned IOCTL_TIOCSSERIAL = TIOCSSERIAL;
 934 #endif // SANITIZER_LINUX && !SANITIZER_ANDROID
 935
 936 #if SANITIZER_LINUX && !SANITIZER_ANDROID
 937   unsigned IOCTL_GIO_SCRNMAP = GIO_SCRNMAP;
 938   unsigned IOCTL_KDDISABIO = KDDISABIO;
 939   unsigned IOCTL_KDENABIO = KDENABIO;
 940   unsigned IOCTL_KDGETLED = KDGETLED;
 941   unsigned IOCTL_KDGETMODE = KDGETMODE;
 942   unsigned IOCTL_KDGKBMODE = KDGKBMODE;
 943   unsigned IOCTL_KDGKBTYPE = KDGKBTYPE;
 944   unsigned IOCTL_KDMKTONE = KDMKTONE;
 945   unsigned IOCTL_KDSETLED = KDSETLED;
 946   unsigned IOCTL_KDSETMODE = KDSETMODE;
 947   unsigned IOCTL_KDSKBMODE = KDSKBMODE;
 948   unsigned IOCTL_KIOCSOUND = KIOCSOUND;
 949   unsigned IOCTL_PIO_SCRNMAP = PIO_SCRNMAP;
 950   unsigned IOCTL_SNDCTL_DSP_GETISPACE = SNDCTL_DSP_GETISPACE;
 951   unsigned IOCTL_SNDCTL_DSP_GETOSPACE = SNDCTL_DSP_GETOSPACE;
 952 #endif // (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
 953
 954   const int si_SEGV_MAPERR = SEGV_MAPERR;
 955   const int si_SEGV_ACCERR = SEGV_ACCERR;
 956 } // namespace __sanitizer
 957
 958 using namespace __sanitizer;
 959
 960 COMPILER_CHECK(sizeof(__sanitizer_pthread_attr_t) >= sizeof(pthread_attr_t));
 961
 962 COMPILER_CHECK(sizeof(socklen_t) == sizeof(unsigned));
 963 CHECK_TYPE_SIZE(pthread_key_t);
 964
 965 #if SANITIZER_LINUX
 966 // FIXME: We define those on Linux and Mac, but only check on Linux.
 967 COMPILER_CHECK(IOC_NRBITS == _IOC_NRBITS);
 968 COMPILER_CHECK(IOC_TYPEBITS == _IOC_TYPEBITS);
 969 COMPILER_CHECK(IOC_SIZEBITS == _IOC_SIZEBITS);
 970 COMPILER_CHECK(IOC_DIRBITS == _IOC_DIRBITS);
 971 COMPILER_CHECK(IOC_NRMASK == _IOC_NRMASK);
 972 COMPILER_CHECK(IOC_TYPEMASK == _IOC_TYPEMASK);
 973 COMPILER_CHECK(IOC_SIZEMASK == _IOC_SIZEMASK);
 974 COMPILER_CHECK(IOC_DIRMASK == _IOC_DIRMASK);
 975 COMPILER_CHECK(IOC_NRSHIFT == _IOC_NRSHIFT);
 976 COMPILER_CHECK(IOC_TYPESHIFT == _IOC_TYPESHIFT);
 977 COMPILER_CHECK(IOC_SIZESHIFT == _IOC_SIZESHIFT);
 978 COMPILER_CHECK(IOC_DIRSHIFT == _IOC_DIRSHIFT);
 979 COMPILER_CHECK(IOC_NONE == _IOC_NONE);
 980 COMPILER_CHECK(IOC_WRITE == _IOC_WRITE);
 981 COMPILER_CHECK(IOC_READ == _IOC_READ);
 982 COMPILER_CHECK(EVIOC_ABS_MAX == ABS_MAX);
 983 COMPILER_CHECK(EVIOC_EV_MAX == EV_MAX);
 984 COMPILER_CHECK(IOC_SIZE(0x12345678) == _IOC_SIZE(0x12345678));
 985 COMPILER_CHECK(IOC_DIR(0x12345678) == _IOC_DIR(0x12345678));
 986 COMPILER_CHECK(IOC_NR(0x12345678) == _IOC_NR(0x12345678));
 987 COMPILER_CHECK(IOC_TYPE(0x12345678) == _IOC_TYPE(0x12345678));
 988 #endif // SANITIZER_LINUX
 989
 990 #if SANITIZER_LINUX || SANITIZER_FREEBSD
 991 // There are more undocumented fields in dl_phdr_info that we are not interested
 992 // in.
 993 COMPILER_CHECK(sizeof(__sanitizer_dl_phdr_info) <= sizeof(dl_phdr_info));
 994 CHECK_SIZE_AND_OFFSET(dl_phdr_info, dlpi_addr);
 995 CHECK_SIZE_AND_OFFSET(dl_phdr_info, dlpi_name);
 996 CHECK_SIZE_AND_OFFSET(dl_phdr_info, dlpi_phdr);
 997 CHECK_SIZE_AND_OFFSET(dl_phdr_info, dlpi_phnum);
 998 #endif // SANITIZER_LINUX || SANITIZER_FREEBSD
 999
1000 #if SANITIZER_GLIBC || SANITIZER_FREEBSD
1001 CHECK_TYPE_SIZE(glob_t);
1002 CHECK_SIZE_AND_OFFSET(glob_t, gl_pathc);
1003 CHECK_SIZE_AND_OFFSET(glob_t, gl_pathv);
1004 CHECK_SIZE_AND_OFFSET(glob_t, gl_offs);
1005 CHECK_SIZE_AND_OFFSET(glob_t, gl_flags);
1006 CHECK_SIZE_AND_OFFSET(glob_t, gl_closedir);
1007 CHECK_SIZE_AND_OFFSET(glob_t, gl_readdir);
1008 CHECK_SIZE_AND_OFFSET(glob_t, gl_opendir);
1009 CHECK_SIZE_AND_OFFSET(glob_t, gl_lstat);
1010 CHECK_SIZE_AND_OFFSET(glob_t, gl_stat);
1011 #endif  // SANITIZER_GLIBC || SANITIZER_FREEBSD
1012
1013 CHECK_TYPE_SIZE(addrinfo);
1014 CHECK_SIZE_AND_OFFSET(addrinfo, ai_flags);
1015 CHECK_SIZE_AND_OFFSET(addrinfo, ai_family);
1016 CHECK_SIZE_AND_OFFSET(addrinfo, ai_socktype);
1017 CHECK_SIZE_AND_OFFSET(addrinfo, ai_protocol);
1018 CHECK_SIZE_AND_OFFSET(addrinfo, ai_protocol);
1019 CHECK_SIZE_AND_OFFSET(addrinfo, ai_addrlen);
1020 CHECK_SIZE_AND_OFFSET(addrinfo, ai_canonname);
1021 CHECK_SIZE_AND_OFFSET(addrinfo, ai_addr);
1022
1023 CHECK_TYPE_SIZE(hostent);
1024 CHECK_SIZE_AND_OFFSET(hostent, h_name);
1025 CHECK_SIZE_AND_OFFSET(hostent, h_aliases);
1026 CHECK_SIZE_AND_OFFSET(hostent, h_addrtype);
1027 CHECK_SIZE_AND_OFFSET(hostent, h_length);
1028 CHECK_SIZE_AND_OFFSET(hostent, h_addr_list);
1029
1030 CHECK_TYPE_SIZE(iovec);
1031 CHECK_SIZE_AND_OFFSET(iovec, iov_base);
1032 CHECK_SIZE_AND_OFFSET(iovec, iov_len);
1033
1034 // In POSIX, int msg_iovlen; socklen_t msg_controllen; socklen_t cmsg_len; but
1035 // many implementations don't conform to the standard. Since we pick the
1036 // non-conforming glibc definition, exclude the checks for musl (incompatible
1037 // sizes but compatible offsets).
1038 CHECK_TYPE_SIZE(msghdr);
1039 CHECK_SIZE_AND_OFFSET(msghdr, msg_name);
1040 CHECK_SIZE_AND_OFFSET(msghdr, msg_namelen);
1041 CHECK_SIZE_AND_OFFSET(msghdr, msg_iov);
1042 #if SANITIZER_GLIBC || SANITIZER_ANDROID
1043 CHECK_SIZE_AND_OFFSET(msghdr, msg_iovlen);
1044 #endif
1045 CHECK_SIZE_AND_OFFSET(msghdr, msg_control);
1046 #if SANITIZER_GLIBC || SANITIZER_ANDROID
1047 CHECK_SIZE_AND_OFFSET(msghdr, msg_controllen);
1048 #endif
1049 CHECK_SIZE_AND_OFFSET(msghdr, msg_flags);
1050
1051 CHECK_TYPE_SIZE(cmsghdr);
1052 #if SANITIZER_GLIBC || SANITIZER_ANDROID
1053 CHECK_SIZE_AND_OFFSET(cmsghdr, cmsg_len);
1054 #endif
1055 CHECK_SIZE_AND_OFFSET(cmsghdr, cmsg_level);
1056 CHECK_SIZE_AND_OFFSET(cmsghdr, cmsg_type);
1057
1058 #if SANITIZER_LINUX && (__ANDROID_API__ >= 21 || __GLIBC_PREREQ (2, 14))
1059 CHECK_TYPE_SIZE(mmsghdr);
1060 CHECK_SIZE_AND_OFFSET(mmsghdr, msg_hdr);
1061 CHECK_SIZE_AND_OFFSET(mmsghdr, msg_len);
1062 #endif
1063
1064 COMPILER_CHECK(sizeof(__sanitizer_dirent) <= sizeof(dirent));
1065 CHECK_SIZE_AND_OFFSET(dirent, d_ino);
1066 #if SANITIZER_MAC
1067 CHECK_SIZE_AND_OFFSET(dirent, d_seekoff);
1068 #elif SANITIZER_FREEBSD
1069 // There is no 'd_off' field on FreeBSD.
1070 #else
1071 CHECK_SIZE_AND_OFFSET(dirent, d_off);
1072 #endif
1073 CHECK_SIZE_AND_OFFSET(dirent, d_reclen);
1074
1075 #if SANITIZER_LINUX && !SANITIZER_ANDROID
1076 COMPILER_CHECK(sizeof(__sanitizer_dirent64) <= sizeof(dirent64));
1077 CHECK_SIZE_AND_OFFSET(dirent64, d_ino);
1078 CHECK_SIZE_AND_OFFSET(dirent64, d_off);
1079 CHECK_SIZE_AND_OFFSET(dirent64, d_reclen);
1080 #endif
1081
1082 CHECK_TYPE_SIZE(ifconf);
1083 CHECK_SIZE_AND_OFFSET(ifconf, ifc_len);
1084 CHECK_SIZE_AND_OFFSET(ifconf, ifc_ifcu);
1085
1086 CHECK_TYPE_SIZE(pollfd);
1087 CHECK_SIZE_AND_OFFSET(pollfd, fd);
1088 CHECK_SIZE_AND_OFFSET(pollfd, events);
1089 CHECK_SIZE_AND_OFFSET(pollfd, revents);
1090
1091 CHECK_TYPE_SIZE(nfds_t);
1092
1093 CHECK_TYPE_SIZE(sigset_t);
1094
1095 COMPILER_CHECK(sizeof(__sanitizer_sigaction) == sizeof(struct sigaction));
1096 // Can't write checks for sa_handler and sa_sigaction due to them being
1097 // preprocessor macros.
1098 CHECK_STRUCT_SIZE_AND_OFFSET(sigaction, sa_mask);
1099 #if !defined(__s390x__) || __GLIBC_PREREQ (2, 20)
1100 // On s390x glibc 2.19 and earlier sa_flags was unsigned long, and sa_resv
1101 // didn't exist.
1102 CHECK_STRUCT_SIZE_AND_OFFSET(sigaction, sa_flags);
1103 #endif
1104 #if SANITIZER_LINUX && (!SANITIZER_ANDROID || !SANITIZER_MIPS32)
1105 CHECK_STRUCT_SIZE_AND_OFFSET(sigaction, sa_restorer);
1106 #endif
1107
1108 #if SANITIZER_LINUX
1109 CHECK_TYPE_SIZE(__sysctl_args);
1110 CHECK_SIZE_AND_OFFSET(__sysctl_args, name);
1111 CHECK_SIZE_AND_OFFSET(__sysctl_args, nlen);
1112 CHECK_SIZE_AND_OFFSET(__sysctl_args, oldval);
1113 CHECK_SIZE_AND_OFFSET(__sysctl_args, oldlenp);
1114 CHECK_SIZE_AND_OFFSET(__sysctl_args, newval);
1115 CHECK_SIZE_AND_OFFSET(__sysctl_args, newlen);
1116
1117 CHECK_TYPE_SIZE(__kernel_uid_t);
1118 CHECK_TYPE_SIZE(__kernel_gid_t);
1119
1120 #if SANITIZER_USES_UID16_SYSCALLS
1121 CHECK_TYPE_SIZE(__kernel_old_uid_t);
1122 CHECK_TYPE_SIZE(__kernel_old_gid_t);
1123 #endif
1124
1125 CHECK_TYPE_SIZE(__kernel_off_t);
1126 CHECK_TYPE_SIZE(__kernel_loff_t);
1127 CHECK_TYPE_SIZE(__kernel_fd_set);
1128 #endif
1129
1130 #if !SANITIZER_ANDROID
1131 CHECK_TYPE_SIZE(wordexp_t);
1132 CHECK_SIZE_AND_OFFSET(wordexp_t, we_wordc);
1133 CHECK_SIZE_AND_OFFSET(wordexp_t, we_wordv);
1134 CHECK_SIZE_AND_OFFSET(wordexp_t, we_offs);
1135 #endif
1136
1137 CHECK_TYPE_SIZE(tm);
1138 CHECK_SIZE_AND_OFFSET(tm, tm_sec);
1139 CHECK_SIZE_AND_OFFSET(tm, tm_min);
1140 CHECK_SIZE_AND_OFFSET(tm, tm_hour);
1141 CHECK_SIZE_AND_OFFSET(tm, tm_mday);
1142 CHECK_SIZE_AND_OFFSET(tm, tm_mon);
1143 CHECK_SIZE_AND_OFFSET(tm, tm_year);
1144 CHECK_SIZE_AND_OFFSET(tm, tm_wday);
1145 CHECK_SIZE_AND_OFFSET(tm, tm_yday);
1146 CHECK_SIZE_AND_OFFSET(tm, tm_isdst);
1147 CHECK_SIZE_AND_OFFSET(tm, tm_gmtoff);
1148 CHECK_SIZE_AND_OFFSET(tm, tm_zone);
1149
1150 #if SANITIZER_LINUX
1151 CHECK_TYPE_SIZE(mntent);
1152 CHECK_SIZE_AND_OFFSET(mntent, mnt_fsname);
1153 CHECK_SIZE_AND_OFFSET(mntent, mnt_dir);
1154 CHECK_SIZE_AND_OFFSET(mntent, mnt_type);
1155 CHECK_SIZE_AND_OFFSET(mntent, mnt_opts);
1156 CHECK_SIZE_AND_OFFSET(mntent, mnt_freq);
1157 CHECK_SIZE_AND_OFFSET(mntent, mnt_passno);
1158 #endif
1159
1160 CHECK_TYPE_SIZE(ether_addr);
1161
1162 #if SANITIZER_GLIBC || SANITIZER_FREEBSD
1163 CHECK_TYPE_SIZE(ipc_perm);
1164 # if SANITIZER_FREEBSD
1165 CHECK_SIZE_AND_OFFSET(ipc_perm, key);
1166 CHECK_SIZE_AND_OFFSET(ipc_perm, seq);
1167 # else
1168 CHECK_SIZE_AND_OFFSET(ipc_perm, __key);
1169 CHECK_SIZE_AND_OFFSET(ipc_perm, __seq);
1170 # endif
1171 CHECK_SIZE_AND_OFFSET(ipc_perm, uid);
1172 CHECK_SIZE_AND_OFFSET(ipc_perm, gid);
1173 CHECK_SIZE_AND_OFFSET(ipc_perm, cuid);
1174 CHECK_SIZE_AND_OFFSET(ipc_perm, cgid);
1175 #if !SANITIZER_LINUX || __GLIBC_PREREQ (2, 31)
1176 /* glibc 2.30 and earlier provided 16-bit mode field instead of 32-bit
1177    on many architectures.  */
1178 CHECK_SIZE_AND_OFFSET(ipc_perm, mode);
1179 #endif
1180
1181 CHECK_TYPE_SIZE(shmid_ds);
1182 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_perm);
1183 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_segsz);
1184 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_atime);
1185 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_dtime);
1186 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_ctime);
1187 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_cpid);
1188 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_lpid);
1189 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_nattch);
1190 #endif
1191
1192 CHECK_TYPE_SIZE(clock_t);
1193
1194 #if SANITIZER_LINUX
1195 CHECK_TYPE_SIZE(clockid_t);
1196 #endif
1197
1198 #if !SANITIZER_ANDROID
1199 CHECK_TYPE_SIZE(ifaddrs);
1200 CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_next);
1201 CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_name);
1202 CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_addr);
1203 CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_netmask);
1204 #if SANITIZER_LINUX || SANITIZER_FREEBSD
1205 // Compare against the union, because we can't reach into the union in a
1206 // compliant way.
1207 #ifdef ifa_dstaddr
1208 #undef ifa_dstaddr
1209 #endif
1210 # if SANITIZER_FREEBSD
1211 CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_dstaddr);
1212 # else
1213 COMPILER_CHECK(sizeof(((__sanitizer_ifaddrs *)nullptr)->ifa_dstaddr) ==
1214                sizeof(((ifaddrs *)nullptr)->ifa_ifu));
1215 COMPILER_CHECK(offsetof(__sanitizer_ifaddrs, ifa_dstaddr) ==
1216                offsetof(ifaddrs, ifa_ifu));
1217 # endif // SANITIZER_FREEBSD
1218 #else
1219 CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_dstaddr);
1220 #endif // SANITIZER_LINUX
1221 CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_data);
1222 #endif
1223
1224 #if SANITIZER_GLIBC || SANITIZER_ANDROID
1225 COMPILER_CHECK(sizeof(__sanitizer_struct_mallinfo) == sizeof(struct mallinfo));
1226 #endif
1227
1228 #if !SANITIZER_ANDROID
1229 CHECK_TYPE_SIZE(timeb);
1230 CHECK_SIZE_AND_OFFSET(timeb, time);
1231 CHECK_SIZE_AND_OFFSET(timeb, millitm);
1232 CHECK_SIZE_AND_OFFSET(timeb, timezone);
1233 CHECK_SIZE_AND_OFFSET(timeb, dstflag);
1234 #endif
1235
1236 CHECK_TYPE_SIZE(passwd);
1237 CHECK_SIZE_AND_OFFSET(passwd, pw_name);
1238 CHECK_SIZE_AND_OFFSET(passwd, pw_passwd);
1239 CHECK_SIZE_AND_OFFSET(passwd, pw_uid);
1240 CHECK_SIZE_AND_OFFSET(passwd, pw_gid);
1241 CHECK_SIZE_AND_OFFSET(passwd, pw_dir);
1242 CHECK_SIZE_AND_OFFSET(passwd, pw_shell);
1243
1244 #if !SANITIZER_ANDROID
1245 CHECK_SIZE_AND_OFFSET(passwd, pw_gecos);
1246 #endif
1247
1248 #if SANITIZER_MAC
1249 CHECK_SIZE_AND_OFFSET(passwd, pw_change);
1250 CHECK_SIZE_AND_OFFSET(passwd, pw_expire);
1251 CHECK_SIZE_AND_OFFSET(passwd, pw_class);
1252 #endif
1253
1254
1255 CHECK_TYPE_SIZE(group);
1256 CHECK_SIZE_AND_OFFSET(group, gr_name);
1257 CHECK_SIZE_AND_OFFSET(group, gr_passwd);
1258 CHECK_SIZE_AND_OFFSET(group, gr_gid);
1259 CHECK_SIZE_AND_OFFSET(group, gr_mem);
1260
1261 #if HAVE_RPC_XDR_H
1262 CHECK_TYPE_SIZE(XDR);
1263 CHECK_SIZE_AND_OFFSET(XDR, x_op);
1264 CHECK_SIZE_AND_OFFSET(XDR, x_ops);
1265 CHECK_SIZE_AND_OFFSET(XDR, x_public);
1266 CHECK_SIZE_AND_OFFSET(XDR, x_private);
1267 CHECK_SIZE_AND_OFFSET(XDR, x_base);
1268 CHECK_SIZE_AND_OFFSET(XDR, x_handy);
1269 COMPILER_CHECK(__sanitizer_XDR_ENCODE == XDR_ENCODE);
1270 COMPILER_CHECK(__sanitizer_XDR_DECODE == XDR_DECODE);
1271 COMPILER_CHECK(__sanitizer_XDR_FREE == XDR_FREE);
1272 #endif
1273
1274 #if SANITIZER_GLIBC
1275 COMPILER_CHECK(sizeof(__sanitizer_FILE) <= sizeof(FILE));
1276 CHECK_SIZE_AND_OFFSET(FILE, _flags);
1277 CHECK_SIZE_AND_OFFSET(FILE, _IO_read_ptr);
1278 CHECK_SIZE_AND_OFFSET(FILE, _IO_read_end);
1279 CHECK_SIZE_AND_OFFSET(FILE, _IO_read_base);
1280 CHECK_SIZE_AND_OFFSET(FILE, _IO_write_ptr);
1281 CHECK_SIZE_AND_OFFSET(FILE, _IO_write_end);
1282 CHECK_SIZE_AND_OFFSET(FILE, _IO_write_base);
1283 CHECK_SIZE_AND_OFFSET(FILE, _IO_buf_base);
1284 CHECK_SIZE_AND_OFFSET(FILE, _IO_buf_end);
1285 CHECK_SIZE_AND_OFFSET(FILE, _IO_save_base);
1286 CHECK_SIZE_AND_OFFSET(FILE, _IO_backup_base);
1287 CHECK_SIZE_AND_OFFSET(FILE, _IO_save_end);
1288 CHECK_SIZE_AND_OFFSET(FILE, _markers);
1289 CHECK_SIZE_AND_OFFSET(FILE, _chain);
1290 CHECK_SIZE_AND_OFFSET(FILE, _fileno);
1291
1292 COMPILER_CHECK(sizeof(__sanitizer__obstack_chunk) <= sizeof(_obstack_chunk));
1293 CHECK_SIZE_AND_OFFSET(_obstack_chunk, limit);
1294 CHECK_SIZE_AND_OFFSET(_obstack_chunk, prev);
1295 CHECK_TYPE_SIZE(obstack);
1296 CHECK_SIZE_AND_OFFSET(obstack, chunk_size);
1297 CHECK_SIZE_AND_OFFSET(obstack, chunk);
1298 CHECK_SIZE_AND_OFFSET(obstack, object_base);
1299 CHECK_SIZE_AND_OFFSET(obstack, next_free);
1300
1301 CHECK_TYPE_SIZE(cookie_io_functions_t);
1302 CHECK_SIZE_AND_OFFSET(cookie_io_functions_t, read);
1303 CHECK_SIZE_AND_OFFSET(cookie_io_functions_t, write);
1304 CHECK_SIZE_AND_OFFSET(cookie_io_functions_t, seek);
1305 CHECK_SIZE_AND_OFFSET(cookie_io_functions_t, close);
1306 #endif  // SANITIZER_GLIBC
1307
1308 #if SANITIZER_LINUX || SANITIZER_FREEBSD
1309 CHECK_TYPE_SIZE(sem_t);
1310 #endif
1311
1312 #if SANITIZER_LINUX && defined(__arm__)
1313 COMPILER_CHECK(ARM_VFPREGS_SIZE == ARM_VFPREGS_SIZE_ASAN);
1314 #endif
1315
1316 #endif // SANITIZER_LINUX || SANITIZER_FREEBSD || SANITIZER_MAC